An environmentally friendly machine-made charcoal production line waste gas collection and multiple combustion system

Abstract

An environmentally friendly machine-made charcoal production line waste gas collection and multiple combustion system consists of a carbonization kiln, a kiln cooling flue, a gas pipeline, a cooling water tank, a combustible waste gas combustion and heating furnace, a gas pipeline 1, a drying chamber, a gas pipeline 2 and a fan. The present invention can quickly and smoothly discharge water vapor during the carbonization process and achieve water vapor separation, and can also effectively prevent the gas from flashing back when entering the combustible waste gas combustion and heating furnace. The gas enters the combustible waste gas combustion and heating furnace and is burned twice, which can make the temperature in the primary combustion chamber reach 1700°. In the present invention, the carbonization waste gas is burned, and the carbon monoxide gas is converted into heat energy and is well utilized, which can save about 200 yuan of coal and firewood per ton of product; and the output is high, the energy consumption is low, and the product quality is good.

Description

Technical Field

[0001] The invention belongs to environmental protection equipment, and in particular relates to a system for collecting and repeatedly burning waste gas generated by an environmentally friendly machine-made charcoal production line. Background Art

[0002] Machine-made charcoal, also known as firewood sticks, artificial charcoal, regenerated charcoal, and smokeless clean charcoal, is a carbonaceous rod made by extruding wood chips. The raw materials for machine-made charcoal are diverse, including rice husks, peanut shells, cotton husks, corn cobs, corn stalks, sorghum stalks, bean stalks, sawdust, wood chips, wood shavings, pine husks, and coconut shells. Sawdust, wood shavings, bamboo chips, and rice husks are preferred. The market for machine-made charcoal is vast. Restaurants use it for barbecues. Its density is over three times that of wood charcoal, and it burns smokelessly. Industrially, it is used in the production of carbon disulfide and in steelmaking. It is also used as a supplemental fuel in boilers. Its density is similar to that of coal, with a calorific value of 5,500 to 7,000 kcal / kg, but its ash content is significantly lower than that of coal.

[0003] During the preparation process of machine-made charcoal, a large amount of waste gas will be generated. If this waste gas is not effectively treated, it will cause environmental pollution.

[0004] Currently, waste gas incinerators are an effective device for preventing waste gas from escaping into the atmosphere and causing environmental pollution. If these waste gases are collected during the charcoal production process and incinerated in a waste gas incinerator, where they are oxidized and decomposed into H₂O and CO₂ before being discharged, environmental pollution will be avoided. Environmental protection has received increasing attention from all sectors of society. Consequently, most factories have installed waste gas incinerators to treat waste gas generated during production. However, complete oxidation and decomposition of waste gas requires an oxidation temperature of at least 760°C. Therefore, to ensure that the exhaust gas emitted after combustion in the waste gas incinerator does not pollute the environment, the combustion temperature must reach 760°C. Since higher furnace temperatures increase fuel consumption, some factories, to save fuel and reduce production costs, use low-temperature combustion methods, meaning furnace temperatures below 760°C (e.g., 700°C or even below 600°C). This prevents the complete oxidation and decomposition of waste gas or other harmful components. The above-mentioned harmful components can be detected in the exhaust chimney of the incinerator, exceeding the national standards. The odor and falling debris of the above-mentioned organic substances can be smelled within a few hundred meters of the incinerator. Therefore, to ensure that the waste gas generated by machine-made charcoal production does not pollute the environment: (1) a waste gas incinerator or other organic matter recovery and treatment device must be established; (2) the combustion temperature of the waste gas incinerator furnace must reach above 760℃.

[0005] However, current incinerators are generally expensive and cannot be afforded by many small and medium-sized enterprises.

[0006] In addition, due to the structural composition of current incinerators, the furnace temperature is difficult to exceed 1000℃. Summary of the Invention

[0007] The purpose of the present invention is to provide a new and environmentally friendly system for collecting and repeatedly burning waste gas generated by a machine-made charcoal production line. Specifically, the system comprises a carbonization kiln (1), a kiln cooling flue (2), a gas pipeline (3), a cooling water tank (4), a combustible waste gas combustion and heating furnace (5), a first gas pipeline (6), a drying chamber (7), a second gas pipeline (8), and a fan (9).

[0008] The present invention is achieved through the following technical solutions:

[0009] A system for collecting and repeatedly burning waste gas generated by an environmentally friendly machine-made charcoal production line is provided. The technical solution is as follows: the system comprises a carbonizing kiln (1), a kiln cooling flue (2), a gas pipeline (3), a cooling water tank (4), a combustible waste gas combustion and heating furnace (5), a first gas pipeline (6), a drying chamber (7), a second gas pipeline (8) and a fan (9).

[0010] The carbonization kiln (1) is composed of a plurality of carbonization furnaces (10), and an exhaust port (11) is provided on the top of each carbonization furnace (10).

[0011] The kiln cooling flue (2) is composed of a kiln flue (12) and a cooling water trough (13). A vent (14) is provided at the bottom of the kiln flue (12), and a vent (15) is provided at the front top of the kiln flue (12).

[0012] A pipeline through hole (16) is provided in the middle of the cooling water tank (4).

[0013] The combustible waste gas combustion and heating furnace (5) is composed of multiple combustion chambers (17) and hot air outlet pipes (18); the multiple combustion chambers (17) are composed of a primary combustion chamber (19), a fire wall (20), a secondary combustion and heating chamber (21), a dust storage chamber (22), an oxygen inlet (23) and a base (24); a furnace door (25) and a gas inlet (26) are provided at the front end of the primary combustion chamber (19), a gas outlet (27) is provided at the rear end of the dust storage chamber (22), an ash outlet (28) is provided at the bottom of the dust storage chamber (22), and a grate (29) is provided at the top of the oxygen inlet (23); the fire wall (20) is provided at the primary combustion chamber (19), and a gas outlet (26) is provided at the rear end of the dust storage chamber (22). In the combustion chamber (19), the secondary combustion heating chamber (21) is formed by stacking a plurality of high-aluminum refractory bricks (30) in a herringbone shape to form a plurality of secondary combustion vents (31); a gas inlet (32) is provided at the front end of the hot air outlet duct (18), and a gas outlet (33) is provided at the rear end of the hot air outlet duct (18); when the multiple combustion chamber (17) and the hot air outlet duct (18) are combined, the gas inlet (32) provided at the front end of the hot air outlet duct (18) is connected to the gas outlet (27) provided at the rear end of the dust storage chamber (22) of the multiple combustion chamber (17), thereby forming a combustible waste gas combustion heating furnace (5) as a whole.

[0014] The drying chamber (7) is composed of a drying room (34) and a base (35). A gas inlet (36) is provided at the front end of the drying room (34), and a gas outlet (37) is provided at the rear end of the drying room (34).

[0015] The fan (9) is a negative pressure fan.

[0016] When the carbonization kiln (1), kiln cooling flue (2), gas pipeline (3), cooling water tank (4), combustible waste gas combustion and heating furnace (5), gas pipeline 1 (6), drying chamber (7), gas pipeline 2 (8) and fan (9) are combined, the kiln cooling flue (2) is placed on the top of the carbonization kiln (1), wherein the air vent (14) provided at the bottom of the kiln flue (12) is sleeved on the exhaust port (11) provided at the top of the carbonization furnace (10); the gas pipeline (3) is inserted into the pipeline through hole (16) provided in the middle of the cooling water tank (4), and the front end of the gas pipeline (3) is connected to the air vent 1 (15) provided at the top of the front end of the kiln flue (12) of the kiln cooling flue (2), and the rear end of the gas pipeline (3) is connected to the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5). A furnace door (25) is provided at the front end of the burning chamber (19); a gas pipeline (6) is used to connect the combustible waste gas burning and heating furnace (5) and the drying chamber (7), wherein the front end of the gas pipeline (6) is connected to the gas outlet (33) provided at the rear end of the hot air outlet pipeline (18) of the combustible waste gas burning and heating furnace (5), and the end of the gas pipeline (6) is connected to the gas inlet (36) provided at the front end of the drying room (34) of the drying chamber (7); a gas pipeline (8) is used to connect the drying chamber (7) and the fan (9), wherein the front end of the gas pipeline (8) is connected to the gas outlet (37) provided at the rear end of the drying room (34) of the drying chamber (7), and the end of the gas pipeline (8) is connected to the fan (9), thereby forming an overall system for collecting and burning waste gas generated by an environmentally friendly machine-made charcoal production line.

[0017] Application principle of the present invention:

[0018] The blower (9) is started, and the combustible gas in each carbonization furnace (10) of the carbonization kiln (1) is introduced by the blower (9) into the kiln cooling flue (2) through the exhaust port (11) provided on the top of the carbonization furnace (10). Cold water is added to the cooling water tank (13) of the kiln cooling flue (2). The cold water circulates in the cooling water tank (13) to maintain the water temperature at about 30-40 degrees. The carbon monoxide + water vapor discharged by the environmentally friendly machine-made charcoal during the carbonization process passes through the bottom of the cooling water tank (13). Due to the temperature difference between the outside and inside of the water tank, the water vapor quickly turns into water droplets and flows out from the bottom of the cooling water tank (13) to reach The water vapor separation effect is achieved for the combustible gas; the gas then enters the gas pipeline (3) through the vent (15) provided at the front end top of the kiln flue (12) of the kiln cooling flue (2). Under the action of the cooling water tank (4), the gas is effectively prevented from returning when entering the combustible waste gas combustion and heating furnace (5). When the gas enters the multiple combustion chamber (17) and the primary combustion chamber (19) of the combustible waste gas combustion and heating furnace (5), since the multiple combustion chamber (17) is provided with an oxygen inlet (23), the gas is sublimated in the primary combustion chamber (19), and the gas in the primary combustion chamber (19) can be heated. The temperature reaches 1700°, and the temperature in the primary combustion chamber (19) can be used for smelting, power generation, etc.; the gas then passes through the secondary combustion heating chamber (21) of the multiple combustion chamber (17) of the combustible waste gas combustion heating furnace (5). Since the secondary combustion heating chamber (21) is composed of a plurality of high-aluminum refractory bricks (30) stacked in a herringbone shape to form a plurality of secondary combustion vents (31), a honeycomb wall hole is formed; the gas that is not completely burned in the first combustion chamber (19) is fully burned for the second time when it passes through the honeycomb wall formed by the secondary combustion heating chamber (21), and the temperature in the furnace will be raised again. The honeycomb wall of the secondary combustion heating chamber (21) also plays the role of heat preservation and constant temperature, so that the high temperature in the secondary combustion heating chamber (21) is sustained. When the gas passes through the multiple combustion chamber (17) and the dust storage chamber (22) of the combustible waste gas combustion heating furnace (5), gas and dust separation can be achieved, and the dust is retained in the dust storage chamber (22). The dust can be cleaned and removed from the ash outlet (28) provided at the bottom of the dust storage chamber (22); the high-temperature gas enters the drying chamber (7) through the gas pipeline (6), and can dry the materials placed in the drying chamber (7). The gas is finally discharged from the fan as clean and pollution-free gas.

[0019] The present invention has the following advantages:

[0020] 1. The present invention has a novel and unique structure, a scientific and reasonable design, and a remarkable application effect.

[0021] 2. In the present invention, the carbonization time of the machine-made incendiary rod in the carbonization kiln (1) is short, and the carbonization kiln (1) can convert the machine-made incendiary rod embryo into wood and charcoal powder within 24 hours. The furnace body of the carbonization kiln (1) occupies a small space, and the furnace top is arc-shaped. During the carbonization process, water vapor is discharged quickly and smoothly, and will not be absorbed and protected like a flat-top kiln, and will not drip back onto the charcoal embryo on the kiln top, causing quality problems of the charcoal.

[0022] 3. In the present invention, water vapor is provided in the kiln cooling flue (2). The water vapor discharged during the carbonization process is under the action of the cooling water tank (13) of the kiln cooling flue (2): cold water is added to the cooling water tank (13), and the cold water circulates in the cooling water tank (13) to maintain the water temperature at about 30-40 degrees. The carbon monoxide + water vapor discharged during the carbonization process of the environmentally friendly machine-made charcoal passes through the bottom of the cooling water tank (13). Due to the temperature difference between the outside and the inside of the water tank, the water vapor quickly turns into water droplets and flows out from the bottom of the cooling water tank (13) to achieve the water vapor separation effect; and after the water vapor is separated, the carbon monoxide combustible gas is fully burned, which can replace natural gas, liquefied gas, coal and other fuels, and is energy-saving and environmentally friendly.

[0023] 4. In the present invention, a cooling water tank (4) is provided. Under the action of the cooling water tank (4), it is possible to effectively prevent the gas from flashing back when it enters the combustible waste gas combustion heating furnace (5).

[0024] 5. In the present invention, a combustible waste gas combustion and heating furnace (5) is provided. When the gas enters the multiple combustion chambers (17) and the primary combustion chamber (19) of the combustible waste gas combustion and heating furnace (5), the gas is sublimated by the combustion in the primary combustion chamber (19) because the multiple combustion chambers (17) are provided with an oxygen inlet (23). The temperature in the primary combustion chamber (19) can be made to reach 1700°. The temperature in the primary combustion chamber (19) can be used for smelting, power generation, etc. The gas then passes through the multiple combustion chambers (17) and the secondary combustion chamber (19) of the combustible waste gas combustion and heating furnace (5). As the secondary combustion and heating chamber (21) moves forward, since the secondary combustion and heating chamber (21) is formed by stacking a number of high-aluminum refractory bricks (30) in a herringbone shape to form a number of secondary combustion vents (31), a honeycomb wall hole is formed; the gas that is not completely burned in the primary combustion chamber (19) for the first time is fully burned for the second time when it passes through the honeycomb wall formed by the secondary combustion and heating chamber (21), and the temperature in the furnace will be raised again. The honeycomb wall of the secondary combustion and heating chamber (21) also plays a role in heat preservation and constant temperature, so that the high temperature in the secondary combustion and heating chamber (21) is sustained.

[0025] 6. In the present invention, carbonized waste gas is burned, and carbon monoxide gas is converted into heat energy and is well utilized, which can save about 200 yuan of coal and firewood per ton of product; and the output is high, the energy consumption is low, and the product quality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the carbonization kiln (1) in the present invention.

[0029] Figure 3 It is a schematic structural diagram of the kiln cooling flue (2) in the present invention.

[0030] Figure 4 It is a structural schematic diagram of the cooling water tank (4) in the present invention.

[0031] Figure 5 It is a schematic structural diagram of the cooling water tank (4) in the present invention when viewed from the front.

[0032] Figure 6 It is a schematic structural diagram of the combustible waste gas combustion and heating furnace (5) in the present invention.

[0033] Figure 7 It is a schematic structural diagram of the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5) in the present invention.

[0034] Figure 8 It is a schematic structural diagram of the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5) in the present invention when viewed from the front.

[0035] Figure 9 It is a schematic structural diagram of a sectional view of the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5) in the present invention.

[0036] Figure 10 It is a schematic structural diagram of the hot air outlet pipe (18) of the combustible waste gas combustion heating furnace (5) in the present invention.

[0037] Figure 11 It is a structural schematic diagram of the drying chamber (7) in the present invention.

[0038] exist Figure 1 Among them, 1 is the carbonization kiln, 2 is the kiln cooling flue, 3 is the gas pipeline, 4 is the cooling water tank, 5 is the combustible waste gas combustion and heating furnace, 6 is the gas pipeline 1, 7 is the drying room, 8 is the gas pipeline 2, and 9 is the fan.

[0039] exist Figure 2 In the figure, 1 is a carbonization kiln, 10 is a carbonization furnace, and 11 is an exhaust port.

[0040] exist Figure 3 Among them, 2 is the kiln cooling flue, 12 is the kiln flue, 13 is the cooling water trough, 14 is the vent, and 15 is the vent 1.

[0041] exist Figure 4Among them, 4 is a cooling water tank, and 16 is a pipeline through hole.

[0042] exist Figure 5 Among them, 4 is a cooling water tank, and 16 is a pipeline through hole.

[0043] exist Figure 6 Among them, 5 is a combustible waste gas combustion heating furnace, 17 is a multiple combustion chamber, and 18 is a hot air outlet pipe.

[0044] exist Figure 7 Among them, 17 is the multiple combustion chamber, 19 is the primary combustion chamber, 20 is the fire retaining wall, 21 is the secondary combustion and rising chamber, 22 is the dust storage chamber, 23 is the oxygen inlet, 24 is the base, 25 is the furnace door, 26 is the gas inlet, 27 is the gas outlet, and 28 is the ash outlet.

[0045] exist Figure 8 Among them, 17 is a multiple combustion chamber, 23 is an oxygen inlet, 25 is a furnace door, and 26 is a gas inlet.

[0046] exist Figure 9 Among them, 17 is a multiple combustion chamber, 21 is a secondary combustion rising chamber, 24 is a base, 30 is a high-alumina refractory brick, and 31 is a secondary combustion vent.

[0047] exist Figure 10 Among them, 18 is a hot air outlet pipe, 32 is a gas inlet one, and 33 is a gas outlet one.

[0048] exist Figure 11 In the figure, 7 is a drying room, 34 is a drying room, 35 is a base 1, 36 is a gas inlet 2, and 37 is a gas outlet 2. DETAILED DESCRIPTION

[0049] The present invention will now be described in detail with reference to the accompanying drawings:

[0050] The present invention comprises a carbonizing kiln (1), a kiln cooling flue (2), a gas pipeline (3), a cooling water tank (4), a combustible waste gas combustion and heating furnace (5), a first gas pipeline (6), a drying chamber (7), a second gas pipeline (8) and a fan (9).

[0051] Figure 1 The present invention is a schematic structural diagram. The present invention comprises a carbonization kiln (1), a kiln cooling flue (2), a gas pipeline (3), a cooling water tank (4), a combustible waste gas combustion and heating furnace (5), a first gas pipeline (6), a drying chamber (7), a second gas pipeline (8), and a fan (9).

[0052] Figure 2 The carbonization kiln (1) of the present invention is shown in the structural diagram. The carbonization kiln (1) is composed of a plurality of carbonization furnaces (10), and the top of each carbonization furnace (10) is provided with an exhaust port (11).

[0053] Figure 3 The figure shows a schematic diagram of the structure of the kiln cooling flue (2) of the present invention. The kiln cooling flue (2) is composed of a kiln flue (12) and a cooling water trough (13). A vent (14) is provided at the bottom of the kiln flue (12), and a vent (15) is provided at the front end top of the kiln flue (12).

[0054] Figure 4 and Figure 5 The structure diagram of the cooling water tank (4) in the present invention is shown. A pipe through hole (16) is provided in the middle of the cooling water tank (4).

[0055] Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 The present invention shows a schematic diagram of the structure of a combustible waste gas combustion and heating furnace (5) and its components. The combustible waste gas combustion and heating furnace (5) is composed of a multiple combustion chamber (17) and a hot air outlet pipe (18); the multiple combustion chamber (17) is composed of a primary combustion chamber (19), a fire wall (20), a secondary combustion and heating chamber (21), a dust storage chamber (22), an oxygen inlet (23) and a base (24); a furnace door (25) and a gas inlet (26) are provided at the front end of the primary combustion chamber (19), a gas outlet (27) is provided at the rear end of the dust storage chamber (22), an ash outlet (28) is provided at the bottom of the dust storage chamber (22), and a grate (29) is provided at the top of the oxygen inlet (23); the fire wall (20) is provided at the primary combustion chamber. (19), the secondary combustion heating chamber (21) is formed by stacking a number of high-aluminum refractory bricks (30) in a herringbone shape to form a number of secondary combustion vents (31); the front end of the hot air outlet duct (18) is provided with a gas inlet (32), and the rear end of the hot air outlet duct (18) is provided with a gas outlet (33); when the multiple combustion chamber (17) and the hot air outlet duct (18) are combined, the gas inlet (32) provided at the front end of the hot air outlet duct (18) is connected to the gas outlet (27) provided at the rear end of the dust storage chamber (22) of the multiple combustion chamber (17), thereby forming the combustible waste gas combustion heating furnace (5) as a whole.

[0056] Figure 11 The figure shows a schematic structural diagram of a drying chamber (7) in the present invention. The drying chamber (7) is composed of a drying room (34) and a base (35). A gas inlet (36) is provided at the front end of the drying room (34), and a gas outlet (37) is provided at the rear end of the drying room (34).

[0057] The fan (9) is a negative pressure fan.

[0058] When the carbonization kiln (1), kiln cooling flue (2), gas pipeline (3), cooling water tank (4), combustible waste gas combustion and heating furnace (5), gas pipeline 1 (6), drying chamber (7), gas pipeline 2 (8) and fan (9) are combined, the kiln cooling flue (2) is placed on the top of the carbonization kiln (1), wherein the air vent (14) provided at the bottom of the kiln flue (12) is sleeved on the exhaust port (11) provided at the top of the carbonization furnace (10); the gas pipeline (3) is inserted into the pipeline through hole (16) provided in the middle of the cooling water tank (4), and the front end of the gas pipeline (3) is connected to the air vent 1 (15) provided at the top of the front end of the kiln flue (12) of the kiln cooling flue (2), and the rear end of the gas pipeline (3) is connected to the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5). A furnace door (25) is provided at the front end of the burning chamber (19); a gas pipeline (6) is used to connect the combustible waste gas burning and heating furnace (5) and the drying chamber (7), wherein the front end of the gas pipeline (6) is connected to the gas outlet (33) provided at the rear end of the hot air outlet pipeline (18) of the combustible waste gas burning and heating furnace (5), and the end of the gas pipeline (6) is connected to the gas inlet (36) provided at the front end of the drying room (34) of the drying chamber (7); a gas pipeline (8) is used to connect the drying chamber (7) and the fan (9), wherein the front end of the gas pipeline (8) is connected to the gas outlet (37) provided at the rear end of the drying room (34) of the drying chamber (7), and the end of the gas pipeline (8) is connected to the fan (9), thereby forming an overall system for collecting and burning waste gas generated by an environmentally friendly machine-made charcoal production line.

[0059] Application principle and process of the present invention:

[0060] After the carbonization process of the carbonization kiln (1) is started, the fan (9) is started at the same time. The combustible gas in each carbonization furnace (10) of the carbonization kiln (1) is introduced by the fan (9) and enters the kiln cooling flue (2) through the exhaust port (11) provided on the top of the carbonization furnace (10). Cold water is added to the cooling water tank (13) of the kiln cooling flue (2). The cold water circulates in the cooling water tank (13) to maintain the water temperature at about 30-40 degrees. The carbon monoxide + water vapor discharged during the carbonization process of the environmentally friendly machine-made charcoal passes through the bottom of the cooling water tank (13) and the water vapor is quickly converted into carbon dioxide due to the temperature difference between the outside and inside of the water tank. The water droplets flow out from the bottom of the cooling water tank (13) to achieve the water vapor separation effect of the combustible gas; the gas then enters the gas pipeline (3) from the air vent (15) provided at the front end top of the kiln flue (12) of the kiln cooling flue (2). Under the action of the cooling water tank (4), the gas is effectively prevented from returning when entering the combustible waste gas combustion and heating furnace (5). When the gas enters the multiple combustion chamber (17) and the primary combustion chamber (19) of the combustible waste gas combustion and heating furnace (5), since the multiple combustion chamber (17) is provided with an oxygen inlet (23), the gas is sublimated in the primary combustion chamber (19) and can make The temperature in the primary combustion chamber (19) reaches 1700°, and the temperature in the primary combustion chamber (19) can be used for smelting, power generation, etc.; the gas then passes through the secondary combustion heating chamber (21) of the multiple combustion chamber (17) of the combustible waste gas combustion heating furnace (5). Since the secondary combustion heating chamber (21) is composed of a plurality of high-aluminum refractory bricks (30) stacked in a herringbone shape to form a plurality of secondary combustion vents (31), forming honeycomb wall holes, the gas that is not completely burned in the primary combustion chamber (19) for the first time is fully burned for the second time when it passes through the honeycomb wall formed by the secondary combustion heating chamber (21), and the temperature in the furnace will be When the temperature is raised again, the honeycomb wall of the secondary combustion and heating chamber (21) also plays a role of heat preservation and constant temperature, so that the high temperature in the secondary combustion and heating chamber (21) is sustained. When the gas passes through the multiple combustion chamber (17) and the dust storage chamber (22) of the combustible waste gas combustion and heating furnace (5), gas and dust separation can be achieved, and the dust is retained in the dust storage chamber (22). The dust can be cleaned and removed from the ash outlet (28) provided at the bottom of the dust storage chamber (22); the high-temperature gas enters the drying chamber (7) through the gas pipeline (6), and the material placed in the drying chamber (7) can be dried. The gas is finally discharged from the fan as clean and pollution-free gas.

Claims

1. An environmentally friendly machine-made charcoal production line waste gas collection and multiple combustion system, characterized by: The system is composed of a carbonizing kiln (1), a kiln cooling flue (2), a gas pipeline (3), a cooling water tank (4), a combustible waste gas combustion and heating furnace (5), a first gas pipeline (6), a drying chamber (7), a second gas pipeline (8) and a fan (9); The carbonization kiln (1) is composed of a plurality of carbonization furnaces (10), and an exhaust port (11) is provided on the top of each carbonization furnace (10); The kiln cooling flue (2) is composed of a kiln flue (12) and a cooling water trough (13), a vent (14) is provided at the bottom of the kiln flue (12), and a vent (15) is provided at the front top of the kiln flue (12); A pipeline through hole (16) is provided in the middle of the cooling water tank (4); The combustible waste gas combustion and heating furnace (5) is composed of multiple combustion chambers (17) and hot air outlet pipes (18); the multiple combustion chambers (17) are composed of a primary combustion chamber (19), a fire wall (20), a secondary combustion and heating chamber (21), a dust storage chamber (22), an oxygen inlet (23) and a base (24); a furnace door (25) and a gas inlet (26) are provided at the front end of the primary combustion chamber (19), a gas outlet (27) is provided at the rear end of the dust storage chamber (22), an ash outlet (28) is provided at the bottom of the dust storage chamber (22), and a grate (29) is provided at the top of the oxygen inlet (23); the fire wall (20) is provided at the primary combustion chamber (19), and a gas outlet (26) is provided at the rear end of the dust storage chamber (22). In the combustion chamber (19), the secondary combustion heating chamber (21) is formed by stacking a plurality of high-aluminum refractory bricks (30) in a herringbone shape to form a plurality of secondary combustion vents (31); a gas inlet (32) is provided at the front end of the hot air outlet duct (18), and a gas outlet (33) is provided at the rear end of the hot air outlet duct (18); when the multiple combustion chamber (17) and the hot air outlet duct (18) are combined, the gas inlet (32) provided at the front end of the hot air outlet duct (18) is connected to the gas outlet (27) provided at the rear end of the dust storage chamber (22) of the multiple combustion chamber (17), thereby forming a combustible waste gas combustion heating furnace (5) as a whole; The drying chamber (7) is composed of a drying room (34) and a base (35). A gas inlet (36) is provided at the front end of the drying room (34), and a gas outlet (37) is provided at the rear end of the drying room (34). The fan (9) is a negative pressure fan; When the carbonization kiln (1), kiln cooling flue (2), gas pipeline (3), cooling water tank (4), combustible waste gas combustion and heating furnace (5), gas pipeline 1 (6), drying chamber (7), gas pipeline 2 (8) and fan (9) are combined, the kiln cooling flue (2) is placed on the top of the carbonization kiln (1), wherein the air vent (14) provided at the bottom of the kiln flue (12) is sleeved on the exhaust port (11) provided at the top of the carbonization furnace (10); the gas pipeline (3) is inserted into the pipeline through hole (16) provided in the middle of the cooling water tank (4), and the front end of the gas pipeline (3) is connected to the air vent 1 (15) provided at the top of the front end of the kiln flue (12) of the kiln cooling flue (2), and the rear end of the gas pipeline (3) is connected to the multiple combustion chamber (17) of the combustible waste gas combustion and heating furnace (5). A furnace door (25) is provided at the front end of the burning chamber (19); a gas pipeline (6) is used to connect the combustible waste gas burning and heating furnace (5) and the drying chamber (7), wherein the front end of the gas pipeline (6) is connected to the gas outlet (33) provided at the rear end of the hot air outlet pipeline (18) of the combustible waste gas burning and heating furnace (5), and the end of the gas pipeline (6) is connected to the gas inlet (36) provided at the front end of the drying room (34) of the drying chamber (7); a gas pipeline (8) is used to connect the drying chamber (7) and the fan (9), wherein the front end of the gas pipeline (8) is connected to the gas outlet (37) provided at the rear end of the drying room (34) of the drying chamber (7), and the end of the gas pipeline (8) is connected to the fan (9), thereby forming an overall system for collecting and burning waste gas generated by an environmentally friendly machine-made charcoal production line.

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