Gas producer with preheating function

Abstract

The utility model discloses a gas producer with a preheating function, which belongs to the technical field of gas producers and comprises a producer body, the top of the producer body is fixedly sleeved with a coal inlet pipe, the top end of the coal inlet pipe is fixedly connected with a coal guide pipe, and the top of one end of the coal guide pipe is fixedly connected with a coal storage barrel. A crushing mechanism is arranged at the top end of the coal storage barrel, and an inner cavity of the coal guide pipe is rotationally connected with a spiral conveying rod. When coal is heated in the furnace body, external air is pumped into the heat exchange pipe through the fan, the air in the heat exchange pipe is heated through heat in the furnace body, the heated air enters the preheating cylinder from the air guide pipe, hot air entering the preheating cylinder is guided by the annular guide plate, and the coal is heated through the annular guide plate. The hot gas preheats the coal mine moving in the coal guide pipe, so that the coal added into the furnace body has certain heat, and the combustion efficiency of the coal is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas generators, and more specifically to a gas generator with a preheating function. Background Art

[0002] Gasifier refers to a reaction furnace used to produce coal gas, water gas and semi-water gas. The furnace body is cylindrical, the outer shell is made of steel plate or brick, lined with refractory bricks, and equipped with feeding equipment, blast pipes and gas pipes, etc. According to the structure, it can be divided into mechanical generator, step generator, generator with rotating furnace body and two-stage generator, etc. According to the process, it can be divided into fixed bed or fluidized bed gasifier.

[0003] When the gasifier is used, coal is placed inside the generator, and the heat generated ignites the coal. The heat generated after combustion evaporates the water inside, and the moisture evaporates into water vapor, which enters the condenser through the pipeline, and produces steam-vaporized hydrocarbons in the condenser, that is, coal gas. However, the coal added to the generator is at room temperature, which will reduce the temperature in the generator when added, and the heating speed is slow, affecting the working efficiency of the gasifier; some other coals are larger in volume, and burn slowly when added to the generator. For this reason, we propose a gasifier with a preheating function. Utility Model Content

[0004] In view of the problems mentioned in the above background technology, the purpose of the utility model is to provide a gas generator with a preheating function.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A coal gas generator with a preheating function comprises a furnace body, a coal feeding pipe is fixedly sleeved on the top of the furnace body, a coal guide pipe is fixedly connected to the top of the coal feeding pipe, a coal storage barrel is fixedly connected to the top of one end of the coal guide pipe, a crushing mechanism is provided on the top of the coal storage barrel, a spiral feeding rod is rotatably connected to the inner cavity of the coal guide pipe, a second motor is fixedly installed on the end of the coal guide pipe, the output shaft of the second motor is connected to one end of the rotating shaft of the spiral feeding rod, a preheating barrel is fixedly sleeved on the outer side of the coal guide pipe, an exhaust hole is provided on the top surface of one end of the preheating barrel, a fan is fixedly installed on the back side of the furnace body, the output end of the fan extends to the inner cavity of the furnace body and is fixedly connected to a heat exchange pipe, the top of the heat exchange pipe is fixedly connected to an air guide pipe, and the end of the air guide pipe is fixedly sleeved to the inner cavity of the preheating barrel.

[0007] As a preferred solution of the utility model, the crushing mechanism includes a cylinder cover threadedly installed on the top of the coal storage cylinder, a first motor is fixedly installed on the top surface of the cylinder cover, an output shaft of the first motor extends to the inner cavity of the coal storage cylinder and is fixedly connected to a crushing rod, and a plurality of crushing knives are fixedly connected to the side of the crushing rod.

[0008] As a preferred solution of the utility model, a grate is arranged at the bottom of the furnace body.

[0009] As a preferred solution of the utility model, the side surface of the spiral feed rod is in contact with the inner wall of the coal guide pipe.

[0010] As a preferred solution of the utility model, an annular guide plate is fixedly connected to the inner wall of the preheating cylinder, and the inner side surface of the annular guide plate is connected to the outer side surface of the coal guide pipe.

[0011] As a preferred solution of the utility model, a screw plug is threadedly installed on the top surface of the cylinder cover.

[0012] The advantages of the utility model are:

[0013] (1) In the utility model, when the coal is heated in the furnace body, the external air is drawn into the heat exchange tube by the fan, and the air in the heat exchange tube is heated by the heat in the furnace body. The heated air enters the preheating tube from the air guide tube. The hot air entering the preheating tube is guided by the annular guide plate. The hot air preheats the coal moving in the coal guide tube, so that the coal added to the furnace body has a certain amount of heat, thereby ensuring the efficiency of coal combustion.

[0014] (2) In the utility model, when coal is put into the coal storage barrel, the first motor is used to drive the crushing rod and the crushing knife to rotate, and the crushing knife is used to crush the coal in the coal storage barrel, ensuring that the coal added to the furnace body is in a powder state, thereby improving the efficiency of coal combustion and improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the coal storage cylinder of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the furnace body of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the preheating cylinder of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the preheating cylinder of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the cylinder cover of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Furnace body; 2. Coal inlet pipe; 3. Coal guide pipe; 4. Coal storage barrel; 5. Crushing mechanism; 6. Preheating barrel; 7. Annular guide plate; 8. Exhaust hole; 9. Fan; 10. Heat exchange pipe; 11. Air guide pipe; 12. Second motor; 13. Screw feed rod; 14. Barrel cover; 15. First motor; 16. Crushing rod; 17. Crushing knife; 18. Screw plug; 19. Grate. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-6A coal gasifier with a preheating function comprises a furnace body 1, a coal inlet pipe 2 is fixedly sleeved on the top of the furnace body 1, a coal guide pipe 3 is fixedly connected to the top of the coal inlet pipe 2, a coal storage barrel 4 is fixedly connected to the top of one end of the coal guide pipe 3, a crushing mechanism 5 is arranged on the top of the coal storage barrel 4, a spiral feed rod 13 is rotatably connected to the inner cavity of the coal guide pipe 3, a second motor 12 is fixedly installed at the end of the coal guide pipe 3, an output shaft of the second motor 12 is connected to one end of the rotating shaft of the spiral feed rod 13, a preheating barrel 6 is fixedly sleeved on the outer side of the coal guide pipe 3, an exhaust hole 8 is opened on the top surface of one end of the preheating barrel 6, a fan 9 is fixedly installed on the back of the furnace body 1, the output end of the fan 9 extends to the inner cavity of the furnace body 1 and is fixedly connected to a heat exchange pipe 10, a gas guide pipe 11 is fixedly connected to the top of the heat exchange pipe 10, and the end of the gas guide pipe 11 is fixedly sleeved to the inner cavity of the preheating barrel 6.

[0028] In this embodiment, the coal guiding pipe 3 has heat conductivity, and the coal in the inner cavity of the coal guiding pipe 3 can be preheated by heating through the outer side of the coal guiding pipe 3 .

[0029] For details, please refer to Figure 1 , Figure 2 and Figure 6 The crushing mechanism 5 includes a cylinder cover 14 threadedly installed on the top of the coal storage cylinder 4, a first motor 15 is fixedly installed on the top surface of the cylinder cover 14, an output shaft of the first motor 15 extends to the inner cavity of the coal storage cylinder 4 and is fixedly connected to a crushing rod 16, and a plurality of crushing knives 17 are fixedly connected to the side of the crushing rod 16.

[0030] In this embodiment, the first motor 15 is used to drive the crushing rod 16 and the crushing knife 17 to rotate, and the crushing knife 17 is used to crush the coal in the coal storage barrel 4.

[0031] For details, please refer to Figure 2 A grate 19 is provided at the bottom of the furnace body 1.

[0032] For details, please refer to Figure 2 The side surface of the spiral feeding rod 13 is in contact with the inner wall of the coal guiding pipe 3 .

[0033] In this embodiment, it is ensured that the spiral feed rod 13 can drive the coal in the coal guide pipe 3 to move smoothly.

[0034] For details, please refer to Figure 2 , Figure 4 and Figure 5 The inner wall of the preheating tube 6 is fixedly connected with an annular guide plate 7, and the inner side surface of the annular guide plate 7 is connected to the outer side surface of the coal guiding pipe 3.

[0035] In this embodiment, the annular guide plate 7 is used to guide the hot gas in the preheating tube 6, thereby increasing the distance the hot gas stays in the preheating tube 6 and ensuring the quality of heating the coal guide pipe 3 by the hot gas.

[0036] For details, please refer to Figure 6 A screw plug 18 is threadedly installed on the top surface of the cylinder cover 14.

[0037] In this embodiment, coal is put into the coal storage cylinder 4 from the top of the cylinder cover 14 by opening the screw plug 18 .

[0038] Working principle: When in use, first open the screw plug 18 to put the coal into the coal storage barrel 4, start the first motor 15 to drive the crushing rod 16 and the crushing knife 17 to rotate, use the crushing knife 17 to crush the coal in the coal storage barrel 4, and then the crushed coal falls from the bottom of the coal storage barrel 4 into the coal guide pipe 3, start the second motor 12 to drive the spiral feed rod 13 to rotate, and use the spiral feed rod 13 to drive the coal to move in the coal guide pipe 3. When the coal moves to the coal inlet pipe 2, the coal falls from the coal inlet pipe 2 to The furnace body 1 is heated, and finally the fan 9 is started to draw external air into the heat exchange tube 10. The heat in the furnace body 1 is used to heat the air in the heat exchange tube 10. The heated air enters the preheating tube 6 from the air guide pipe 11. The hot air entering the preheating tube 6 is guided by the annular guide plate 7. The hot air preheats the coal moving in the coal guide pipe 3. The preheated gas is discharged from the exhaust hole 8. At the same time, it is ensured that the coal entering the furnace body 1 has a certain amount of heat, thereby improving the efficiency of gas generation.

[0039] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A gas generator with a preheating function, comprising a furnace body (1), characterized in that: The top of the furnace body (1) is fixedly sleeved with a coal feed pipe (2), the top of the coal feed pipe (2) is fixedly connected to a coal guide pipe (3), the top of one end of the coal guide pipe (3) is fixedly connected to a coal storage barrel (4), the top of the coal storage barrel (4) is provided with a crushing mechanism (5), the inner cavity of the coal guide pipe (3) is rotatably connected to a spiral feed rod (13), the end of the coal guide pipe (3) is fixedly mounted with a second motor (12), the output shaft of the second motor (12) and the spiral feed rod (13) are connected to each other. 3) is connected to one end of a rotating shaft, a preheating tube (6) is fixedly sleeved on the outer side of the coal guide pipe (3), an exhaust hole (8) is opened on the top surface of one end of the preheating tube (6), a fan (9) is fixedly installed on the back side of the furnace body (1), the output end of the fan (9) extends to the inner cavity of the furnace body (1) and is fixedly connected to a heat exchange tube (10), the top end of the heat exchange tube (10) is fixedly connected to an air guide tube (11), and the end of the air guide tube (11) is fixedly sleeved to the inner cavity of the preheating tube (6).

2. The gas generator with preheating function according to claim 1, characterized in that: The crushing mechanism (5) comprises a cylinder cover (14) threadedly mounted on the top of the coal storage cylinder (4); a first motor (15) is fixedly mounted on the top surface of the cylinder cover (14); an output shaft of the first motor (15) extends into the inner cavity of the coal storage cylinder (4) and is fixedly connected to a crushing rod (16); and a plurality of crushing knives (17) are fixedly connected to the side of the crushing rod (16).

3. The gas generator with preheating function according to claim 1, characterized in that: A grate (19) is provided at the bottom of the furnace body (1).

4. The gas generator with preheating function according to claim 1, characterized in that: The side surface of the spiral feed rod (13) is in contact with the inner wall of the coal guide pipe (3).

5. The gas generator with preheating function according to claim 1, characterized in that: An annular guide plate (7) is fixedly connected to the inner wall of the preheating cylinder (6), and the inner side surface of the annular guide plate (7) is connected to the outer side surface of the coal guide pipe (3).

6. The gas generator with preheating function according to claim 2, characterized in that: A screw plug (18) is threadedly mounted on the top surface of the cylinder cover (14).

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