Combustible material cracking gasifier capable of realizing external circulation pressure relief and gas guide
By setting up a bending smoke guide pipe on the outside of the gasifier, the problem of the smoke guide pipe of the traditional gasifier occupies combustion space, achieving more efficient combustion and maintenance convenience, and reducing costs.
Patent Information
- Application Number
- CN202420240225.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-01-31
AI Technical Summary
When a traditional gasifier is equipped with pressure relief and smoke conducting equipment, the larger the diameter of the flue gas conduit, the smaller the space available for combustion in the furnace, resulting in a lower space utilization rate. The smoke conduit is installed in the furnace body, which is troublesome to repair and increases costs.
A combustible material cracking gasifier that can be used to circulate pressure relief gas is designed. By setting the smoke conductor on the outside of the combustion chamber, the bending structure of the smoke conductor is used to reduce the obstacles to the flow of smoke and improve the smoke conduction efficiency.
Effectively improve the space utilization rate of the combustion chamber, improve the combustion efficiency of combustible garbage, simplify the maintenance process, reduce the cost of use, and reduce the harm of flue gas through secondary combustion.
Smart Images
Figure CN222773283U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gasifiers, in particular to a combustible cracking gasifier capable of external circulation, pressure relief and gas guiding. Background Art
[0002] The gasifier produces combustible gas and provides combustion energy by incompletely burning crop straw, forest waste, edible fungus residue, cattle and sheep manure and all combustible materials. Biomass straw is used as fuel and incompletely burns in an oxygen-deficient state, converting it into combustible gases such as carbon monoxide, hydrogen, and methane. The pyrolysis gasifier produces a large amount of flue gas during oxidation and reduction reactions. The flue gas has a high carbon content and accumulates at the top of the furnace body. When the pressure reaches saturation, it will explode and extinguish the fire source. Therefore, pressure relief and smoke guiding equipment are needed to prevent the occurrence of deflagration, so as to ensure the continuity of the fire source and the safety of the furnace body.
[0003] In the prior art, when a pressure relief and smoke guiding device is provided in a conventional gasifier, a smoke duct is provided in the gasifier to prevent the pressure in the furnace from reaching saturation and causing explosion. However, there are the following problems: when the diameter of the smoke duct is required to achieve a sufficient discharge volume, the larger the diameter of the smoke duct, the smaller the space available for combustion in the furnace, resulting in low space utilization. In addition, the smoke duct is installed in the furnace body, which causes maintenance troubles and increases costs. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding, so as to solve the technical problems mentioned in the above background technology.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding comprises a shell, a combustion chamber is opened in the middle of the shell, a grate is arranged in the combustion chamber, an exhaust pipe is connected to an outer wall on one side of the shell, a smoke guide pipe is connected to an outer wall on the other side of the shell, an ignition device is arranged at the bottom of the shell, the grate divides the combustion chamber into an upper cavity and a lower cavity, the exhaust pipe is connected to the lower cavity of the combustion chamber, both ends of the smoke guide pipe are bent with a curvature, so that the smoke guide pipe forms an upper bending portion, a flat portion and a lower bending portion, the upper cavity is connected to the upper bending portion, and the lower cavity is connected to the lower bending portion.
[0007] In a preferred example, the utility model can be further configured as follows: a feeding port is opened on one side of the shell, the feeding port is communicated with the upper cavity, and a box door is sealed at the feeding port.
[0008] By adopting the above technical solution, the placement of combustible waste can be facilitated and the processing efficiency of combustible waste can be improved.
[0009] In a preferred example, the utility model can be further configured as follows: the ignition device includes a compressor, a fuel pipe and a nozzle, the compressor is connected to the bottom of the shell, the output end of the compressor extends into the combustion chamber and is connected to the nozzle, and the compressor is located on one side outside the shell and is connected to the fuel pipe.
[0010] By adopting the above technical solution, combustible garbage can be ignited to make the combustible garbage burn better.
[0011] In summary, the present invention includes at least one of the following beneficial technical effects:
[0012] 1. The combustible pyrolysis gasification furnace capable of external circulation pressure relief and gas guiding can effectively improve the space utilization of the combustion chamber and the combustion efficiency of combustible waste by arranging the smoke guide pipe for guiding the flow of smoke outside the combustion chamber, and the external smoke guide pipe is convenient for observation and maintenance, thereby reducing the use cost;
[0013] 2. This combustible cracking gasification furnace with external circulation, pressure relief and gas conduction can be used to burn combustible waste through the ignition device, and the fuel pipe in the ignition device can be used to transport high-concentration oxygen, which is used for oxidation and reduction of the flue gas generated by the combustible waste in a high-temperature environment, thereby reducing the harmfulness of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0015] Figure 1 The utility model is a structural schematic diagram of a combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding.
[0016] Figure 2 The utility model is a schematic diagram of the internal structure of a combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding.
[0017] Figure 3 The utility model is a flue gas flow diagram of a combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding.
[0018] In the figure, 1, shell; 2, combustion chamber; 21, upper cavity; 22, lower cavity; 3, grate; 4, exhaust pipe; 5, smoke guide pipe; 51, upper bending part; 52, flat part; 53, lower bending part; 6, ignition device; 61, compressor; 62, fuel pipe; 63, nozzle; 7, feeding port; 8, box door. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0020] Example: Refer to Figure 1 - Figure 3 The utility model discloses a combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding, comprising a shell 1, a combustion chamber 2 is provided in the middle of the shell 1, a grate 3 is provided in the combustion chamber 2, an exhaust pipe 4 is connected to the outer wall of one side of the shell 1, a smoke guide pipe 5 is connected to the outer wall of the other side of the shell 1, and an ignition device 6 is provided at the bottom of the shell 1.
[0021] In this embodiment, the box door 8 is opened, and then the combustible garbage is thrown into the combustion chamber 2 through the feeding port 7. The combustible garbage will then fall and accumulate on the grate 3. When the throwing is completed, the box door 8 can be closed, and finally the ignition device 6 is started to process the combustible garbage.
[0022] See also Figure 3 It can be found that when the ignition device 6 burns combustible waste, a large amount of smoke will be generated. The smoke will accumulate at the top of the combustion chamber 2, causing the pressure at the top of the combustion chamber 2 to increase. The smoke will contain carbon that can be used for combustion, so when the pressure is saturated, it will explode. The impact generated by the explosion will extinguish the fire source and affect the treatment of the combustible waste. Therefore, a smoke guide pipe 5 is provided to guide the smoke, discharge the smoke into the combustion chamber 2, and reduce the pressure at the top of the combustion chamber 2 to avoid explosion and extinguishing the fire source.
[0023] If the smoke guide pipe 5 is built-in, in order to improve the smoke guiding efficiency of the smoke guide pipe 5, it is necessary to increase the air flow cross-section of the smoke guide pipe 5, which will result in a reduction in the combustion space in the combustion chamber 2 and affect the processing efficiency of the combustible waste. If in order to maintain the combustion efficiency, the smoke guide pipe 5 needs to be reduced, thereby reducing the smoke guiding efficiency. Therefore, by arranging the smoke guide pipe 5 outside the combustion chamber 2, it is possible to avoid the setting of the smoke guide pipe 5 affecting the space of the combustion chamber 2, so that the smoke guide pipe 5 can increase the smoke guiding speed without affecting the combustion efficiency.
[0024] In a further preferred embodiment of the present invention, Figure 2 As shown, the grate 3 divides the combustion chamber 2 into an upper cavity 21 and a lower cavity 22 , and the exhaust pipe 4 is connected to the lower cavity 22 of the combustion chamber 2 .
[0025] In this embodiment, when the combustible waste is directly put into the combustion chamber 2, the combustible waste will accumulate at the bottom of the combustion chamber 2. Therefore, the combustion effect of the waste close to the bottom is poor during the combustion process. Therefore, a grate 3 is provided to support the combustible waste, increase the combustion surface of the combustible waste, and thus improve the combustion efficiency of the combustible waste.
[0026] Furthermore, the setting of the grate 3 can also utilize the heat generated by combustion, thereby improving the efficiency of energy utilization and enhancing the practicality of the gasifier.
[0027] In a further preferred embodiment of the present invention, Figure 2 As shown, both ends of the smoke guide tube 5 are bent with a curvature, so that the smoke guide tube 5 forms an upper bending portion 51, a flat portion 52 and a lower bending portion 53.
[0028] In the present embodiment, because the smoke guide pipe 5 is external, in order to keep the smoke guide pipe 5 connected with the combustion chamber 2, it is necessary to add an additional pipe connecting the smoke guide pipe 5 with the combustion chamber 2. The newly added pipe will cause a corner to be formed at the connection point of the two pipes, resulting in obstruction of the smoke flow at the corner, thereby reducing the flow effect of the smoke. Therefore, the two ends of the smoke guide pipe 5 are bent with a curvature to reduce the obstruction of the smoke flow and improve the flow efficiency of the smoke.
[0029] In a further preferred embodiment of the present invention, Figure 2 As shown, the upper cavity 21 is communicated with the upper bending portion 51 , and the lower cavity 22 is communicated with the lower bending portion 53 .
[0030] In this embodiment, the smoke accumulated on the top of the combustion chamber 2 will be discharged along the smoke guide pipe 5 due to the pressure. Since the smoke contains carbon, which can be burned, directly discharging the smoke into the combustion chamber 2 will cause a waste of energy. Therefore, the upper bend portion 51 is connected to the upper cavity 21 of the combustion chamber 2 to guide the smoke to leave the combustion chamber 2, and then the smoke is transported to the lower cavity 22 through the lower bend portion 53 to contact the ignition device 6 for secondary combustion, thereby reducing the energy required for combustion and improving combustion efficiency.
[0031] In a further preferred embodiment of the present invention, Figure 1 As shown, a feeding port 7 is provided on one side of the shell 1 , and the feeding port 7 is communicated with the upper cavity 21 . A box door 8 is sealed at the feeding port 7 .
[0032] In this embodiment, because the gasification furnace is usually a positive pressure furnace, except for the exhaust pipe 4 used to discharge additional smoke to avoid explosion, the shell 1 is sealed as a whole. The garbage needs to be put into the combustion chamber 2 before burning the garbage. Therefore, a feeding port 7 is opened on the shell 1 for putting in combustible garbage, and the feeding port 7 is connected to the upper cavity 21, so that the combustible garbage put in will fall onto the grate 3, thereby improving the combustion efficiency of the combustible garbage. When the garbage is put in, the feeding port 7 is sealed by closing the box door 8, so that the shell 1 can be kept sealed again to avoid smoke leakage.
[0033] In a further preferred embodiment of the present invention, Figure 2 As shown, the ignition device 6 includes a compressor 61, a fuel pipe 62 and a nozzle 63. The compressor 61 is connected to the bottom of the shell 1, the output end of the compressor 61 extends into the combustion chamber 2 and is connected to the nozzle 63, and the side of the compressor 61 located outside the shell 1 is connected to the fuel pipe 62.
[0034] In this embodiment, because the shell 1 needs to be sealed, oxygen and other gases used for combustion cannot be directly obtained through the flow of external air, which will cause the ignition device 6 to quickly burn out the oxygen in the combustion chamber 2 and then go out, resulting in the inability to effectively treat the combustible waste.
[0035] Therefore, a compressor 61 is provided, through which the combustion-supporting material in the fuel pipe 62 is sucked and sprayed into the combustion chamber 2 through the nozzle 63, and then ignited by the spark plug integrated in the nozzle 63, so as to ignite and burn the combustible waste. The transported combustion-supporting gas can be used to maintain the fire source and at the same time oxidize and reduce the flue gas generated by the combustion under high temperature environment, so as to reduce the harm of the flue gas and further improve the practicability of the gasifier.
[0036] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding, comprising a shell (1), characterized in that: A combustion chamber (2) is provided in the middle of the shell (1), a grate (3) is arranged in the combustion chamber (2), an exhaust pipe (4) is connected to an outer wall of one side of the shell (1), a smoke guide pipe (5) is connected to an outer wall of the other side of the shell (1), an ignition device (6) is arranged at the bottom of the shell (1), the grate (3) divides the combustion chamber (2) into an upper cavity (21) and a lower cavity (22), the exhaust pipe (4) is connected to the lower cavity (22) of the combustion chamber (2), the two ends of the smoke guide pipe (5) are bent in a curvature, so that the smoke guide pipe (5) forms an upper bent portion (51), a flat portion (52) and a lower bent portion (53), the upper cavity (21) is connected to the upper bent portion (51), and the lower cavity (22) is connected to the lower bent portion (53).
2. A combustible cracking gasification furnace capable of external circulation, pressure relief and gas guiding according to claim 1, characterized in that: A feeding port (7) is provided on one side of the shell (1), the feeding port (7) is in communication with the upper cavity (21), and a box door (8) is sealed at the feeding port (7).
3. The combustible cracking gasification furnace capable of external circulation pressure relief and gas guiding according to claim 1, characterized in that: The ignition device (6) comprises a compressor (61), a fuel pipe (62) and a nozzle (63); the compressor (61) is connected to the bottom of the shell (1); an output end of the compressor (61) extends into the combustion chamber (2) and is connected to the nozzle (63); and a side of the compressor (61) located outside the shell (1) is connected to the fuel pipe (62).