CN112920826A - Gas device is made to hot kiln - Google Patents
Gas device is made to hot kiln Download PDFInfo
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- CN112920826A CN112920826A CN202110390174.3A CN202110390174A CN112920826A CN 112920826 A CN112920826 A CN 112920826A CN 202110390174 A CN202110390174 A CN 202110390174A CN 112920826 A CN112920826 A CN 112920826A
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- furnace tube
- kiln
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- dry distillation
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/18—Modifying the properties of the distillation gases in the oven
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/02—Multi-step carbonising or coking processes
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the field of gas production equipment, in particular to a hot kiln gas production device. A hot kiln gas making device comprises a dry distillation hot kiln, a reduction hot kiln, a photon catalytic structure and a flow guide pipe; the dry distillation thermal kiln is used for performing dry distillation on the materials in the dry distillation thermal kiln so as to separate out combustible gas; the two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation thermal kiln and the feed end of the reduction thermal kiln, and the flow guide pipe is used for guiding combustible gas separated out from the dry distillation thermal kiln to be conveyed to the reduction thermal kiln; the light quantum catalysis structure is connected with the reduction thermal kiln and used for coacting with the reduction thermal kiln to synthesize the combustible gas conveyed into the reduction thermal kiln into methane-rich fuel gas. The hot kiln gas production device can avoid producing tar in the gas production process, thereby reducing the treatment steps of the flue gas, further improving the gas production efficiency and reducing the gas production cost.
Description
Technical Field
The invention relates to the field of gas production equipment, in particular to a hot kiln gas production device.
Background
In the prior art, the pyrolysis method is to adopt a rotary kiln to produce fuel gas, refractory materials are built in the rotary kiln, so that external heat cannot be transmitted, open fire cannot exist, and alkane is oxidized into CO2 and water vapor instead of obtaining combustible gas if the open fire exists, so that the temperature of a steel cylinder of the rotary kiln is 150 ℃, and the rotary kiln is called as a cold kiln.
And the alkane is gaseous at the temperature of 450-600 ℃, a large amount of tar is generated after the temperature is reduced, the tar belongs to Volatile Organic Compounds (VOC), the gas containing the tar cannot be discharged and cannot be directly sent to a unit or a boiler, otherwise, equipment is blocked and can only be burnt, but the generated flue gas contains harmful substances and needs to be discharged after reaching the standard under the monitoring of an environmental protection department, so that the cost for preparing the fuel gas is higher.
Disclosure of Invention
The invention aims to provide a hot kiln gas production device, which can avoid tar generation in the gas production process, thereby reducing the treatment steps of flue gas, improving the gas production efficiency and reducing the gas production cost.
The embodiment of the invention is realized by the following steps:
in a first aspect, the invention provides a hot kiln gas production device, which comprises a dry distillation hot kiln, a reduction hot kiln, a photon catalytic structure and a flow guide pipe;
the dry distillation thermal kiln is used for performing dry distillation on the materials in the dry distillation thermal kiln so as to separate out combustible gas; the two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation thermal kiln and the feed end of the reduction thermal kiln, and the flow guide pipe is used for guiding combustible gas separated out from the dry distillation thermal kiln to be conveyed to the reduction thermal kiln; the light quantum catalysis structure is connected with the reduction thermal kiln and used for coacting with the reduction thermal kiln to synthesize the combustible gas conveyed into the reduction thermal kiln into methane-rich fuel gas.
In an alternative embodiment, the dry distillation thermal kiln comprises a first heating chamber, a dry distillation furnace tube, a first heating assembly and a first driving mechanism; the first driving mechanism is used for driving the dry distillation furnace tube to rotate relative to the first heating chamber; the first heating assembly is accommodated in the first heating chamber and used for heating the carbonization furnace tube so as to perform carbonization on materials in the carbonization furnace tube, and combustible gas is separated out;
the reduction thermal kiln comprises a second heating chamber, a reduction furnace tube, a second heating assembly and a second driving mechanism; two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation furnace tube and the feed end of the reduction furnace tube; the reduction furnace tube is used for isolating oxygen and is rotatably connected with the second heating chamber, and the second driving mechanism is used for driving the reduction furnace tube to rotate relative to the second heating chamber; the photon catalytic structure is connected with the inner wall of the reduction furnace tube; the second heating assembly is accommodated in the second heating chamber and used for heating the reduction furnace tube so as to crack CmHn molecules in the combustible gas into C atoms and H2, and the C atoms and the H2 are synthesized into methane-rich fuel gas through a photon catalytic structure.
In an alternative embodiment, the first heating assembly and the second heating assembly each comprise at least one first heater and at least one second heater;
the first heater is used for burning fuel gas supplied by an external gas source, and the second heater is used for burning methane-rich fuel gas supplied by the reduction heat kiln.
In an optional embodiment, the dry distillation furnace tube and the reduction furnace tube are both arranged in an inclined manner, the discharge end of the dry distillation furnace tube is positioned below the feed end of the dry distillation furnace tube, the discharge end of the reduction furnace tube is positioned below the feed end of the reduction furnace tube, and the discharge end of the dry distillation furnace tube and the feed end of the reduction furnace tube are close to each other.
In an optional embodiment, rotary joints are arranged at the feeding ends and the discharging ends of the carbonization furnace tube and the reduction furnace tube;
one end of the flow guide pipe is connected with the rotary joint at the discharge end of the dry distillation furnace tube, and the other end of the flow guide pipe is connected with the rotary joint at the feed end of the reduction furnace tube.
In an optional embodiment, the hot kiln gas production device further comprises a slag discharging pipe communicated with the rotary joint at the discharge end of the dry distillation furnace pipe, and the slag discharging pipe is used for discharging slag generated after the material is subjected to dry distillation.
In an optional embodiment, the hot kiln gas production device further comprises a first screw conveyor, a second screw conveyor and a third screw conveyor;
the first spiral conveyor is positioned at the feeding end of the carbonization furnace tube, penetrates through the inner hole of the rotary joint to extend to the carbonization furnace tube and is used for guiding the materials to be conveyed to the carbonization furnace tube;
the second screw conveyer is positioned at the discharge end of the carbonization furnace tube, penetrates through the inner hole of the rotary joint, extends to the carbonization furnace tube and is used for guiding slag and combustible gas in the carbonization furnace tube to be conveyed to the guide tube;
the third screw conveyer is positioned at the discharge end of the reduction furnace tube, passes through the inner hole of the rotary joint, extends to the reduction furnace tube and is used for guiding slag and combustible gas in the guide tube to be conveyed to the reduction furnace tube.
In an optional embodiment, the hot kiln gas production device further comprises a material collector, and the material collector is connected with a rotary joint at the discharge end of the reduction furnace tube;
the material collector is provided with a first material collecting port and a second material collecting port, the first material collecting port is located above the second material collecting port, the first material collecting port is used for being connected with an external fuel gas purification system, and the second material collecting port is used for being connected with a slag material collecting structure.
In an optional embodiment, the hot kiln gas production device further comprises a flue gas pipe, wherein the flue gas pipe is accommodated in the carbonization furnace pipe and arranged along the extension direction of the carbonization furnace pipe;
the gas inlet end of the flue gas pipe is communicated with the flue gas outlets of the first heating chamber and the second heating chamber.
In an optional embodiment, the hot kiln gas production device further comprises a material drying structure and a waste heat boiler, wherein the material drying structure is used for drying the material conveyed to the feeding end of the dry distillation hot kiln;
and the air outlet end of the flue gas pipe is communicated with the material drying structure or the waste heat boiler.
The embodiment of the invention has the beneficial effects that:
the thermal kiln gas production device comprises a dry distillation thermal kiln, a reduction thermal kiln, a photon catalytic structure and a flow guide pipe; wherein, the dry distillation thermal kiln is used for dry distillation of the materials in the dry distillation thermal kiln so as to separate out combustible gas; the two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation thermal kiln and the feed end of the reduction thermal kiln, and the flow guide pipe is used for guiding combustible gas separated out from the dry distillation thermal kiln to be conveyed to the reduction thermal kiln; the light quantum catalysis structure is connected with the reduction thermal kiln and used for coacting with the reduction thermal kiln to synthesize the combustible gas conveyed into the reduction thermal kiln into methane-rich fuel gas. Therefore, in the process of gas production, the materials do not produce tar in the dry distillation thermal kiln and the reduction thermal kiln, so that the processing steps of the smoke can be reduced, the structure for processing the smoke in the thermal kiln gas production device can be reduced, and the manufacturing cost of the thermal kiln gas production device can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a gas-generating device for a thermal kiln according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a retort heat kiln in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a reduction thermal kiln according to an embodiment of the present invention.
The figure is 200-a gas device for producing gas by a hot kiln; 210-dry distillation heat kiln; 220-reduction heat kiln; 230-a draft tube; 211-a first heating chamber; 212-a retort furnace tube; 213-a first heating assembly; 221-a second heating chamber; 222-a reduction furnace tube; 223-a second heating assembly; 261-a swivel; 262-a slag pipe; 263-first screw conveyor; 264-a second screw conveyor; 265-a third screw conveyor; 266-a collector; 267-a first material collecting port; 268-a second collection port; 269-flue gas pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, fig. 1 shows a structure of a gas-generating device of a thermal kiln in an embodiment of the present invention, and fig. 2 shows a structure of a retort thermal kiln in an embodiment of the present invention; FIG. 3 shows the structure of a reduction thermal kiln in an embodiment of the invention;
the embodiment provides a hot kiln gas-producing device 200, the hot kiln gas-producing device 200 comprises a dry distillation hot kiln 210, a reduction hot kiln 220, a photon catalytic structure (not shown in the form of the attached drawing) and a guide pipe 230;
the dry distillation thermal kiln 210 is used for dry distillation of the materials in the dry distillation thermal kiln, so that combustible gas is separated out; the two ends of the draft tube 230 are respectively communicated with the discharge end (shown as mark B in figures 1 and 2) of the dry distillation thermal kiln 210 and the feed end (shown as mark C in figures 1 and 3) of the reduction thermal kiln 220, and the draft tube 230 is used for guiding combustible gas precipitated by the dry distillation thermal kiln 210 to be conveyed to the reduction thermal kiln 220; the light quantum catalytic structure is connected with the reduction thermal kiln 220, and the light quantum catalytic structure is used for coacting with the reduction thermal kiln 220 to synthesize the combustible gas conveyed into the reduction thermal kiln 220 into methane-rich fuel gas.
The working principle of the hot kiln gas production device 200 is as follows:
the hot kiln gas production device 200 comprises a dry distillation hot kiln 210, a reduction hot kiln 220, a photon catalytic structure and a guide pipe 230; wherein, the dry distillation thermal kiln 210 is used for dry distillation of the materials in the dry distillation thermal kiln, so as to separate out combustible gas; the two ends of the guide pipe 230 are respectively communicated with the discharge end of the dry distillation thermal kiln 210 and the feed end of the reduction thermal kiln 220, and the guide pipe 230 is used for guiding combustible gas precipitated by the dry distillation thermal kiln 210 to be conveyed to the reduction thermal kiln 220; the light quantum catalytic structure is connected with the reduction thermal kiln 220, and the light quantum catalytic structure is used for coacting with the reduction thermal kiln 220 to synthesize the combustible gas conveyed into the reduction thermal kiln 220 into methane-rich fuel gas. Therefore, in the process of producing the fuel gas, the fuel gas enters the reduction furnace tube 222 because the high-temperature area in the reduction furnace tube 222 is more than 800 ℃, and C contained in the fuel gasmHnCleavage of the molecule into C atom and H2And passing through the photon catalytic structure, C atoms and H in the constant temperature region of the reduction furnace tube 2222Synthesis of CH4And C atom, H2、CH4All the boiling points of (A) are below zero DEG C, so that tar is not generated, and the treatment of smoke can be reducedThereby, the structure for flue gas treatment in the hot kiln gas production device 200 can be reduced, and the manufacturing cost of the hot kiln gas production device 200 can be reduced.
Further, in the present embodiment, when the retort heat kiln 210 and the reduction heat kiln 220 are provided, the retort heat kiln 210 may include a first heating chamber 211, a retort tube 212, a first heating unit 213, and a first driving mechanism (not shown in the form of drawings); the carbonization furnace tube 212 is rotatably connected with the first heating chamber 211, and the first driving mechanism is used for driving the carbonization furnace tube 212 to rotate relative to the first heating chamber 211; the first heating assembly 213 is accommodated in the first heating chamber 211 and is used for heating the retort furnace tube 212 to perform retort on the material inside the retort furnace tube 212, so as to extract out combustible gas;
the reduction heat kiln 220 may include a second heating chamber 221, a reduction furnace tube 222, a second heating assembly 223, and a second driving mechanism (not shown in the form of the drawings); the two ends of the draft tube 230 are respectively communicated with the discharge end of the carbonization furnace tube 212 and the feed end of the reduction furnace tube 222; the reduction furnace tube 222 is oxygen-insulated, the reduction furnace tube 222 is rotatably connected with the second heating chamber 221, and the second driving mechanism is used for driving the reduction furnace tube 222 to rotate relative to the second heating chamber 221; the photon catalytic structure is connected with the inner wall of the reduction furnace tube 222; the second heating assembly 223 is accommodated in the second heating chamber 221 and is configured to heat the reduction furnace tube 222, so as to crack CmHn molecules in the combustible gas into C atoms and H2, and synthesize the C atoms and H2 into the methane-rich fuel gas through the photon catalytic structure.
In the embodiment of the present invention, firstly, both the retort furnace tube 212 and the reduction furnace tube 222 may be made of heat-resistant steel plates, and can continuously withstand the high temperature of 700 ℃ to 1000 ℃, no refractory castable or refractory bricks are disposed in the furnace tubes, the first heating assembly 213 and the second heating assembly 223 are respectively disposed outside the retort furnace tube 212 and the reduction furnace tube 222, and the high temperatures generated by the first heating assembly 213 and the second heating assembly 223 are transmitted to the materials in the tubes through the retort furnace tube 212 and the reduction furnace tube 222. Secondly, the first driving mechanism and the second driving mechanism are both driven by motors, and gears and belts are sleeved on the carbonization furnace tube 212 and the reduction furnace tube 222, so that the carbonization furnace tube 212 and the reduction furnace tube 222 can be driven to rotate by the way that the motors and the speed reducers are in transmission connection with the gears and the belts.
Based on the above, the operation process of the hot kiln gas production device 200 is as follows:
the material is sent into the dry distillation furnace tube 212 of the dry distillation thermal kiln 210, and under the action of the first heating assembly 213, the material is dry distilled in the dry distillation furnace tube 212, so that combustible gas is separated out from the material. Under the driving action of the first driving mechanism, the retort furnace tube 212 rotates relative to the first heating chamber 211, so that the slag and the combustible gas in the retort furnace tube 212 move from the feeding end (as shown by a mark A in fig. 1 and 2) to the discharging end (as shown by a mark B in fig. 1 and 2) along with the rotation of the retort furnace tube 212, and move towards the reduction furnace tube 222 after entering the draft tube 230;
after the combustible gas and the slag enter the reduction furnace tube 222, the reduction furnace tube 222 rotates relative to the second heating chamber 221 under the driving action of the second driving mechanism, so that the combustible gas and the slag move from the feeding end (as shown by a mark C in fig. 1 and 3) of the reduction furnace tube 222 to the discharging end (as shown by a mark D in fig. 1 and 3). The reduction furnace tube 222 is oxygen-insulated, and the reduction furnace tube 222 is heated under the action of the second heating assembly 223, and the heat generated by the second heating assembly 223 is transferred to the combustible gas and slag in the reduction furnace tube 222 through the wall of the reduction furnace tube 222.
In the process that the second heating assembly 223 heats the reduction furnace tubes 222, the part of the reduction furnace tubes 222 close to the feeding end is kept at the high temperature of 800-950 ℃, so that the CmHn molecules in the combustible gas are instantaneously cracked into C atoms and H2. And because the photon catalytic structure installed in the reduction furnace tube 222 can emit photon of millions of times/s, 1 electron of the 2s orbital of the C atom is excited to jump to the 2pz empty orbital, so that the C atom forms sp3 hybridized orbital and synthesizes 4H into CH 4. With the rotation of the reduction furnace tubes 222, the synthesized methane-rich fuel gas is discharged from the discharge ends of the reduction furnace tubes 222.
Further, in the present embodiment, when the first heating element 213 and the second heating element 223 are disposed, the first heating element 213 and the second heating element 223 each include at least one first heater and at least one second heater; and the first heater is used for burning fuel gas supplied by an external gas source, and the second heater is used for burning methane-rich fuel gas supplied by the reduction heat kiln 220. It should be noted that, since the first heater is used for combusting the fuel gas supplied by the external gas source, and the second heater is used for combusting the methane-rich fuel gas supplied by the reduction heat kiln 220, when the heat kiln fuel gas production device 200 starts to produce fuel gas, the external gas source can be used for supplying fuel gas to the first heater, so that the first heating assembly 213 and the second heating assembly 223 can heat the retort tube 212 and the reduction furnace tube 222; when the hot kiln gas production device 200 starts to produce gas, methane-rich gas can be supplied to the second heater through the reduction hot kiln 220, so that the first heating assembly 213 and the second heating assembly 223 can heat the retort tube 212 and the reduction tube 222; that is, when the hot kiln gas production device 200 is in the state of starting to produce gas, an external gas source may be used for heating, and when the hot kiln gas production device 200 is in the normal working state of producing gas, the self-produced gas may be used for heating. It should be noted that the fuel gas supplied by the external gas source may be liquefied petroleum gas or natural gas.
Further, in the present embodiment, in order to enable the materials in the retort furnace tube 212 and the reduction furnace tube 222 to be transported from the direction of the feeding end to the discharging end, the retort furnace tube 212 and the reduction furnace tube 222 are both disposed in an inclined manner, the discharging end of the retort furnace tube 212 is located below the feeding end thereof, the discharging end of the reduction furnace tube 222 is located below the feeding end thereof, and the discharging end of the retort furnace tube 212 and the feeding end of the reduction furnace tube 222 are close to each other. It should be noted that, as can be seen from the above, when the retort furnace 210 and the reduction furnace 220 are in operation, the retort furnace 212 and the reduction furnace 222 are both rotated under the driving action of the first driving mechanism and the second driving mechanism, so that the materials in the retort furnace 212 and the reduction furnace 222 can be moved from the feeding end to the discharging end of the retort furnace 212 and the reduction furnace 222 by the rotation of the retort furnace 212 and the reduction furnace 222 and the inclined arrangement of the retort furnace 212 and the reduction furnace 222.
In this embodiment, in order to avoid the leakage of the hot kiln gas-generating device 200, the feeding ends and the discharging ends of the carbonization furnace tube 212 and the reduction furnace tube 222 are both provided with the rotary joints 261, so that the leakage at the joints between the feeding ends and the discharging ends of the carbonization furnace tube 212 and the reduction furnace tube 222 and the external structure is avoided by arranging the rotary joints 261; thus, one end of the draft tube 230 is connected to the rotary joint 261 at the discharge end of the retort tubes 212, and the other end of the draft tube 230 is connected to the rotary joint 261 at the feed end of the reduction furnace tubes 222. It should be noted that the rotary joints 261 at the feeding ends and the discharging ends of the carbonization furnace tube 212 and the reduction furnace tube 222 are both sealed by graphite or graphite packing, so as to improve the sealing performance of the rotary joints 261. It should be noted that, in the present embodiment, under the driving action of the first driving mechanism and the second driving mechanism, the carbonization furnace tube 212 and the reduction furnace tube 222 both rotate, so in order to avoid the leakage at the connection between the carbonization furnace tube 212 and the reduction furnace tube 222 and the external structure, the feeding end and the discharging end of the carbonization furnace tube 212 and the reduction furnace tube 222 are both connected with the external structure through the rotary joint 261, thereby the sealing performance at the connection is improved through the rotary joint 261, and after the rotary joint 261 is provided, when the carbonization furnace tube 212 and the reduction furnace tube 222 are in a rotating state, the external structure is connected with the carbonization furnace tube 212 and the reduction furnace tube 222 through the rotary joint 261, so that the external structure with the carbonization furnace tube 212 and the reduction furnace tube 222 is in a static state.
Further, in the process of dry distilling the material in the dry distilling thermal kiln 210, in order to facilitate discharging the slag in the dry distilling thermal kiln 210, the hot kiln gas production device 200 further comprises a slag discharging pipe 262 communicated with the rotary joint 261 at the discharging end of the dry distilling furnace pipe 212, and the slag discharging pipe 262 is used for discharging the slag generated after dry distilling the material. Therefore, when the material is conveyed into the carbonization furnace tube 212 by the first conveyor, under the heating action of the first heating assembly 213, the material is carbonized in the carbonization furnace tube 212, so that combustible gas is separated out and slag is generated, if the slag is more, the slag can be discharged through the slag outlet tube 262, and if the slag is less, the slag and the combustible gas are conveyed to the guide tube 230 through the second conveyor and conveyed to the reduction furnace tube 222 through the third conveyor.
Further, in this embodiment, in order to facilitate the transportation of the material, the hot kiln gas production device 200 further includes a first screw conveyor 263, a second screw conveyor 264 and a third screw conveyor 265; the first screw conveyer 263 is positioned at the feeding end of the carbonization furnace tube 212, and the first screw conveyer 263 passes through the inner hole of the rotary joint 261 to extend to the carbonization furnace tube 212 and is used for guiding the materials to be conveyed to the carbonization furnace tube 212; the second screw conveyor 264 is positioned at the discharge end of the retort furnace tube 212, and the second screw conveyor 264 passes through the inner hole of the rotary joint 261 to extend to the retort furnace tube 212 and is used for guiding slag and combustible gas in the retort furnace tube 212 to be conveyed to the guide pipe 230; the third screw conveyor 265 is located at the discharge end of the reduction furnace tube 222, and the third screw conveyor 265 passes through the inner hole of the rotary joint 261 to extend to the reduction furnace tube 222 and is used for guiding the slag and the combustible gas in the flow guide tube 230 to be conveyed to the reduction furnace tube 222.
In an alternative embodiment, the thermal kiln gas production device 200 further comprises a collector 266, the collector 266 is used for collecting the gas produced by the thermal kiln gas production device 200 and the generated slag, and specifically, the collector 266 is connected with the rotary joint 261 at the discharge end of the reduction furnace tube 222; the material collector 266 is provided with a first material collecting port 267 and a second material collecting port 268, the first material collecting port 267 is positioned above the second material collecting port 268, the first material collecting port 267 is used for being connected with an external fuel gas purification system, and the second material collecting port 268 is used for being connected with a slag material collecting structure.
In order to improve the utilization of heat energy, the hot kiln gas production device 200 further comprises a flue gas pipe 269, wherein the flue gas pipe 269 is accommodated in the retort furnace tube 212 and arranged along the extension direction of the retort furnace tube 212; the inlet end of the flue gas pipe 269 is in communication with the flue gas outlets of the first and second heating chambers 211, 221. The hot kiln gas production device 200 further comprises a material drying structure and a waste heat boiler, wherein the material drying structure is used for drying the material conveyed to the feeding end of the dry distillation hot kiln 210; and the air outlet end of the flue gas pipe 269 is communicated with the material drying structure or the waste heat boiler. Therefore, in the working process of the hot kiln gas production device 200, the flue gas generated in the heating process of the first heating component 213 and the second heating component 223 can be received through the flue gas pipe 269, so that the heat in the flue gas can be utilized in a gradient manner, heat loss is avoided, the utilization rate of energy can be improved, and in the process of utilizing the flue gas in the gradient manner, because the flue gas pipe 269 is connected with the carbonization furnace pipe 212 along the extending direction of the carbonization furnace pipe 212, and a plurality of radiating fins are arranged on the periphery of the flue gas pipe 269, and further the heat in the flue gas can be transferred into the carbonization furnace pipe 212 through the flue gas pipe 269, the temperature of the flue gas pipe 269 is favorably kept, and the gas outlet end of the flue gas pipe 269 can be also communicated with a material drying structure or a waste heat boiler, so that the heat in the flue gas can be.
The working process of the hot kiln gas production device 200 is as follows:
the pretreated materials are conveyed into a dry distillation furnace tube 212 of the dry distillation thermal kiln 210 through a first conveyor, the dry distillation furnace tube 212 rotates relative to a first heating chamber 211 under the driving action of a first driving mechanism, and the temperature of the dry distillation furnace tube 212 rises under the action of a first heating assembly 213; at this time, the first heating assembly 213 burns the fuel gas supplied from the external gas source, i.e., the first heater is operated;
under the action of the first driving mechanism and the first heating assembly 213, the materials are subjected to dry distillation in the dry distillation furnace tube 212, and move from the feeding end of the dry distillation furnace tube 212 to the discharging end thereof, and meanwhile, combustible gas is separated out from the materials;
when the material moves to the discharge end of the retort tube 212, the material can be combustible gas generated after retort and slag formed by retort, and the material moves towards the guide tube 230 under the conveying action of the second conveyor; during the process of transferring the slag from the retort furnace tube 212 to the flow guide tube 230, part of the slag is discharged from the slag discharge tube 262, the slag output from the slag discharge tube 262 is collected uniformly, and the rest of the slag and the combustible gas enter the reduction furnace tube 222 through the third conveyor;
after the combustible gas and the slag enter the reduction furnace tube 222, the reduction furnace tube 222 can rotate relative to the second heating chamber 221 under the driving action of the second driving mechanism, so that the combustible gas and the slag move from the feeding end to the discharging end of the reduction furnace tube 222; the reduction furnace tube 222 is oxygen isolated, and the slag and the combustible gas are heated in the reduction furnace tube 222 under the action of the second heating assembly 223;
in the process that the second heating assembly 223 heats the reduction furnace tubes 222, the part of the reduction furnace tubes 222 close to the feeding end is kept at the high temperature of 800-950 ℃, so that the CmHn molecules in the combustible gas are instantaneously cracked into C atoms and H2. And because the photon catalytic structure installed in the reduction furnace tube 222 can emit photon of millions of times/s, 1 electron of the 2s orbital of the C atom is excited to jump to the 2pz empty orbital, so that the C atom forms sp3 hybridized orbital and synthesizes 4H into CH 4. Along with the rotation of the reduction furnace tube 222, the synthesized methane-rich fuel gas is discharged from the discharge end of the reduction furnace tube 222, and the methane-rich fuel gas is conveyed to an external fuel gas purification system through a first material collecting port 267 through a material collector 266, and the slag is conveyed to a slag collecting structure through a second material collecting port 268;
after the hot kiln gas production device 200 normally outputs gas, the gas purified by the external gas purification system can be conveyed to the second heater through a pipeline, and then the first heaters of the first heating assembly 213 and the second heating assembly 223 stop working and the second heater starts working, so that the hot kiln gas production device 200 starts working by using self-produced gas;
in the normal operation process of the hot kiln gas production device 200, high-temperature flue gas (600 ℃) in the first heating chamber 211 and the second heating chamber 221 is conveyed to the flue gas pipe 269, and heat in the flue gas is transferred to the dry distillation furnace tube 212, the material drying structure and the waste heat boiler through the flue gas pipe 269, which is beneficial to maintaining the dry distillation temperature of 450-600 ℃ of the dry distillation furnace tube 212; therefore, the cascade utilization of the flue gas is realized, and further the heat is dissipated, so that the reduction of power consumption is facilitated, the energy utilization rate is improved, and further the use cost is reduced.
In summary, the hot kiln gas production device 200 has the following advantages:
no incinerator exhaust emissions; the materials are sent into a furnace tube for dry distillation to generate combustible gas and slag, then sent into a reduction thermal kiln 220, alkane is cracked into C atoms and H2, the C atoms form sp3 hybridized tracks and generate CH4 with 4H after being excited by photon, and the product is methane-rich fuel gas which is used for a burner to heat the furnace tube. Therefore, not the incinerator flue gas, but the heating furnace flue gas is discharged. The waste gas of the incinerator is more harmful and needs to be treated to reach the standard for emission, and all-weather monitoring is required by an environmental protection department; the heating furnace fume harmful matter is in accordance with the control standard, the fume is not required to be treated, is not required to be monitored, is not required to be chimney, and is exhausted through the exhaust funnel.
No leakage point; because the feed ends and the discharge ends of the carbonization furnace tube 212 and the reduction furnace tube 222 are provided with the rotary joints 261, the leakage at the joints of the feed ends and the discharge ends of the carbonization furnace tube 212 and the reduction furnace tube 222 and the external structure can be avoided through the rotary joints 261;
no tar oil; the gasification efficiency is high, the temperature in the reduction heat kiln 220 is high, and the benzene ring is cracked into C atoms and H2. No benzene ring and no tar, the gasification efficiency is improved from less than or equal to 42 percent of pyrolysis method to more than or equal to 84 percent, and the gasification efficiency is high.
No generation of dioxin; the benzene ring is cracked into C atoms and H2, no benzene ring exists, and no dioxin is generated in the furnace tube by oxygen (O). The dioxin is generated by connecting 2 benzene rings by O atoms, H on the benzene rings is replaced by Cl in HCl, and the dioxin does not have benzene rings and O, and a dioxin precursor, so that the dioxin cannot be generated.
The equipment investment is small, and the combustion kinetic consumption is low;
containerizing; the heat kiln gas production device 200 is skid-mounted equipment, occupies 300 square meters to 800 square meters (no warehouse), is arranged in open air (no factory building is needed in containerization), and is convenient and fast to install.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hot kiln gas making device is characterized in that:
the thermal kiln gas production device comprises a dry distillation thermal kiln, a reduction thermal kiln, a photon catalytic structure and a flow guide pipe;
the dry distillation thermal kiln is used for performing dry distillation on the materials in the dry distillation thermal kiln so as to separate out combustible gas; the two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation thermal kiln and the feed end of the reduction thermal kiln, and the flow guide pipe is used for guiding combustible gas separated out by the dry distillation thermal kiln to be conveyed to the reduction thermal kiln; the light quantum catalysis structure is connected with the reduction thermal kiln and used for coacting with the reduction thermal kiln to synthesize the combustible gas conveyed into the reduction thermal kiln into methane-rich fuel gas.
2. The thermal kiln gas-generating plant according to claim 1, characterized in that:
the dry distillation heat kiln comprises a first heating chamber, a dry distillation furnace tube, a first heating assembly and a first driving mechanism; the carbonization furnace tube is rotatably connected with the first heating chamber, and the first driving mechanism is used for driving the carbonization furnace tube to rotate relative to the first heating chamber; the first heating assembly is accommodated in the first heating chamber and used for heating the carbonization furnace tube so as to perform carbonization on materials in the carbonization furnace tube, and combustible gas is separated out;
the reduction thermal kiln comprises a second heating chamber, a reduction furnace tube, a second heating assembly and a second driving mechanism; two ends of the flow guide pipe are respectively communicated with the discharge end of the dry distillation furnace tube and the feed end of the reduction furnace tube; the reduction furnace tube is used for isolating oxygen, the reduction furnace tube is rotatably connected with the second heating chamber, and the second driving mechanism is used for driving the reduction furnace tube to rotate relative to the second heating chamber; the light quantum catalytic structure is connected with the inner wall of the reduction furnace tube; the second heating assembly is accommodated in the second heating chamber and used for heating the reduction furnace tube so as to convert C in the combustible gasmHnCleavage of the molecule into C atom and H2And the methane-rich fuel gas is synthesized through the photon catalytic structure.
3. The hot kiln gas-generating plant according to claim 2, characterized in that:
the first heating assembly and the second heating assembly respectively comprise at least one first heater and at least one second heater;
the first heater is used for burning fuel gas supplied by an external gas source, and the second heater is used for burning methane-rich fuel gas supplied by the reduction heat kiln.
4. The hot kiln gas-generating plant according to claim 2, characterized in that:
the dry distillation furnace tube and the reduction furnace tube are both obliquely arranged, the discharge end of the dry distillation furnace tube is positioned below the feed end of the dry distillation furnace tube, the discharge end of the reduction furnace tube is positioned below the feed end of the reduction furnace tube, and the discharge end of the dry distillation furnace tube is close to the feed end of the reduction furnace tube.
5. The hot kiln gas-generating plant according to claim 2, characterized in that:
the feeding ends and the discharging ends of the dry distillation furnace tube and the reduction furnace tube are provided with rotary joints;
one end of the flow guide pipe is connected with the rotary joint at the discharge end of the dry distillation furnace tube, and the other end of the flow guide pipe is connected with the rotary joint at the feed end of the reduction furnace tube.
6. The hot kiln gas-generating plant according to claim 5, characterized in that:
the hot kiln gas production device further comprises a slag discharging pipe communicated with the rotary joint at the discharge end of the dry distillation furnace pipe, and the slag discharging pipe is used for discharging slag generated after the material is subjected to dry distillation.
7. The hot kiln gas-generating plant according to claim 5, characterized in that:
the hot kiln gas production device also comprises a first screw conveyor, a second screw conveyor and a third screw conveyor;
the first spiral conveyor is positioned at the feeding end of the carbonization furnace tube, penetrates through the inner hole of the rotary joint, extends to the carbonization furnace tube and is used for guiding materials to be conveyed to the carbonization furnace tube;
the second screw conveyer is positioned at the discharge end of the carbonization furnace tube, penetrates through the inner hole of the rotary joint, extends to the carbonization furnace tube, and is used for guiding slag and combustible gas in the carbonization furnace tube to be conveyed to the guide tube;
the third screw conveyer is positioned at the discharge end of the reduction furnace tube, penetrates through the inner hole of the rotary joint to extend to the reduction furnace tube, and is used for guiding slag and combustible gas in the guide tube to be conveyed to the reduction furnace tube.
8. The hot kiln gas-generating plant according to claim 5, characterized in that:
the hot kiln gas production device also comprises a material collector, and the material collector is connected with the rotary joint at the discharge end of the reduction furnace tube;
the material collector is provided with a first material collecting port and a second material collecting port, the first material collecting port is located above the second material collecting port, the first material collecting port is used for being connected with an external fuel gas purification system, and the second material collecting port is used for being connected with a slag material collecting structure.
9. The hot kiln gas-generating plant according to claim 2, characterized in that:
the hot kiln gas production device also comprises a flue gas pipe, wherein the flue gas pipe is accommodated in the dry distillation furnace pipe and is arranged along the extension direction of the dry distillation furnace pipe;
and the gas inlet end of the flue gas pipe is communicated with the flue gas outlets of the first heating chamber and the second heating chamber.
10. The hot kiln gas-generating plant according to claim 9, characterized in that:
the hot kiln gas production device also comprises a material drying structure and a waste heat boiler, wherein the material drying structure is used for drying the material conveyed to the feeding end of the dry distillation hot kiln;
and the gas outlet end of the flue gas pipe is communicated with the material drying structure or the waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110390174.3A CN112920826A (en) | 2021-04-12 | 2021-04-12 | Gas device is made to hot kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110390174.3A CN112920826A (en) | 2021-04-12 | 2021-04-12 | Gas device is made to hot kiln |
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| CN112920826A true CN112920826A (en) | 2021-06-08 |
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| CN202110390174.3A Withdrawn CN112920826A (en) | 2021-04-12 | 2021-04-12 | Gas device is made to hot kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196426A (en) * | 2021-11-22 | 2022-03-18 | 殷梅芳 | Flue gas heating pipeline in dry distillation kiln |
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2021
- 2021-04-12 CN CN202110390174.3A patent/CN112920826A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196426A (en) * | 2021-11-22 | 2022-03-18 | 殷梅芳 | Flue gas heating pipeline in dry distillation kiln |
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Application publication date: 20210608 |