Rotary pyrolyzing furnace

Abstract

The rotary pyrolyzing furnace comprises a furnace body, a transmission shaft, a first supporting frame and a second supporting frame, the furnace body comprises a preheating chamber and a pyrolyzing chamber which are communicated, one end of the transmission shaft penetrates through the preheating chamber and is rotatably arranged on the first supporting frame, and the other end of the transmission shaft is rotatably arranged on the second supporting frame. One end of the transmission shaft is arranged in the pyrolysis chamber, the other end of the transmission shaft penetrates through the pyrolysis chamber and is rotatably arranged on the second supporting frame, the transmission shaft is in movable sealing connection with the furnace body, stirring blades are fixedly distributed on the transmission shaft and are arranged in the pyrolysis chamber, and a gear mechanism is arranged between the second supporting frame and the pyrolysis chamber. According to the utility model, through the linkage matching between the gear mechanisms, the furnace body and the stirring blades in the furnace body rotate in opposite directions, and substances in the furnace are fully stirred, so that the pyrolysis efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pyrolysis furnaces, in particular to a rotary pyrolysis furnace. Background Art

[0002] A pyrolysis furnace is a device that uses thermal energy in a high-temperature environment to heat a substance to its decomposition temperature, thereby causing it to undergo a pyrolysis reaction. One common application is to heat a substance to a high temperature to decompose it into gas, liquid or solid products.

[0003] However, there are still the following problems in the process of pyrolysis of materials in the pyrolysis furnace:

[0004] 1. After entering the pyrolysis furnace, the material is prone to accumulation, which makes it difficult to pyrolyze the material evenly, reducing the pyrolysis efficiency of the material. In addition, if the pollutants are pyrolyzed, the pollutants that are not fully pyrolyzed contained in the ash discharged after the pyrolysis of the pollutants will still cause certain pollution to the environment.

[0005] 2. The gas generated during the pyrolysis process stays in the high-temperature pyrolysis chamber for a short time, which makes it difficult for some substances contained in the gas to be fully decomposed at high temperature. If the pollutants are pyrolyzed, it may not be possible to effectively reduce the pollution caused by the gases generated by the pollutants to the atmosphere. Utility Model Content

[0006] The purpose of the utility model is to provide a rotary pyrolysis furnace to solve at least one aspect of the problems and defects raised in the above background technology.

[0007] A rotary pyrolysis furnace comprises a furnace body, a transmission shaft, a first support frame, and a second support frame. The furnace body comprises a preheating chamber and a pyrolysis chamber which are connected to each other. One end of the transmission shaft passes through the preheating chamber and is rotatably arranged on the first support frame, and the other end passes through the pyrolysis chamber and is rotatably arranged on the second support frame. The transmission shaft is dynamically sealed with the furnace body, and a stirring blade is fixedly arranged on the transmission shaft, and the stirring blade is arranged in the pyrolysis chamber.

[0008] A gear mechanism is provided between the second support frame and the pyrolysis chamber, and the gear mechanism includes a first transmission gear, a second transmission gear and a third transmission gear. The first transmission gear is fixedly arranged outside the pyrolysis chamber, and the first transmission gear is an internally meshed gear. The second transmission gear is fixedly arranged at a position of the transmission shaft close to the pyrolysis chamber. The first transmission gear is coaxial with the second transmission gear. The third transmission gear is rotatably connected to the second support frame through a shaft, and the first transmission gear and the second transmission gear are both meshed with the third transmission gear.

[0009] Furthermore, the furnace body maintains a certain angle with the horizontal plane, and the end where the preheating chamber is located is higher than the end where the pyrolysis chamber is located.

[0010] Furthermore, an exhaust pipe is spirally arranged on the inner wall of the pyrolysis chamber.

[0011] Furthermore, the outlet end of the exhaust pipe passes through the pyrolysis chamber and is connected to an external preheating pipe, and the gas outlet end of the preheating pipe is aligned with the outer wall of the preheating chamber.

[0012] Furthermore, a feed port is provided at one end of the preheating chamber close to the first support frame, and a discharge port is provided at one end of the pyrolysis chamber close to the second support frame.

[0013] Furthermore, a scattering roller is provided in the feed port.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This solution uses the linkage of the gear mechanism. Only one motor is needed to control the furnace body and the output shaft inside the furnace body to rotate in opposite directions, so as to fully flip and stir the materials in the furnace, so that the materials can be more fully pyrolyzed and the pyrolysis efficiency can be improved.

[0016] 2. The exhaust pipe is spirally arranged on the inner wall of the pyrolysis chamber, and the gas generated during pyrolysis is discharged through the spiral exhaust pipe, which prolongs the time the gas stays in the pyrolysis chamber, thereby increasing the pyrolysis time of the gas, allowing the substances in the gas to be fully pyrolyzed, and effectively reducing the pollution of the gas generated by the waste to the atmospheric environment.

[0017] 3. The hot air discharged from the exhaust pipe is sprayed onto the preheating chamber through the preheating pipe to heat the preheating chamber. There is no need to set up an additional heating system, which saves resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the furnace body of the utility model after removing the exhaust pipe;

[0021] Figure 3 This is a schematic diagram of the furnace structure after the transmission shaft and spiral blades are removed in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the gear mechanism in the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the feed port in the utility model from a top view.

[0024] In the figure: 1. furnace body; 101. preheating chamber; 102. feed port; 1021. scattering roller; 1022. scattering claws; 103. exhaust pipe; 104. preheating pipe; 105. discharge port; 106. stirring blade; 107. pyrolysis chamber; 2. transmission shaft; 301. first support frame; 302. second support frame; 401. first transmission gear; 402. second transmission gear; 403. third transmission gear. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 As shown, in an embodiment of the utility model, a rotary pyrolysis furnace includes a furnace body 1 and a transmission shaft 2. The furnace body 1 includes a preheating chamber 101 and a pyrolysis chamber 107 which are interconnected. A first support frame 301 is provided at one end where the preheating chamber 101 is located, and a second support frame 302 is provided at one end where the pyrolysis chamber 107 is located. One end of the transmission shaft 2 passes through the preheating chamber 101 and is rotatably arranged on the first support frame 301, and the other end passes through the pyrolysis chamber 107 and is rotatably arranged on the second support frame 302. The transmission shaft 2 and the furnace body 1 are dynamically sealed.

[0028] It should be noted that the furnace body 1 maintains a certain angle with the horizontal plane, and the end where the preheating chamber 101 is located is higher than the end where the pyrolysis chamber 107 is located. After the material enters the furnace body 1, it will slide from the preheating chamber 101 to the pyrolysis chamber 107 under the influence of gravity.

[0029] In one embodiment, see Figure 2 As shown, a stirring blade 106 is fixedly provided on the transmission shaft 2, and the stirring blade 106 is arranged in the pyrolysis chamber 107. A motor is associated with the transmission shaft 2, and the transmission shaft 2 is driven by the motor to rotate, thereby driving the stirring blade 106 to rotate, and stirring the material to be pyrolyzed in the pyrolysis chamber 107.

[0030] In one embodiment, see Figure 4 As shown, a gear mechanism is provided between the second support frame 302 and the pyrolysis chamber 107, and the gear mechanism includes a first transmission gear 401, a second transmission gear 402 and a third transmission gear 403. The first transmission gear 401 is an internally meshed gear, and the second transmission gear 402 and the third transmission gear 403 are externally meshed gears. The first transmission gear 401 is fixedly arranged outside the pyrolysis chamber 107, and the second transmission gear 402 is fixedly arranged at a position of the transmission shaft 2 close to the pyrolysis chamber 107. The first transmission gear 401 and the second transmission gear 402 are coaxial, and the third transmission gear 403 is rotatably connected to the second support frame 302 through a shaft, and the first transmission gear 401 and the second transmission gear 402 are both meshed with the third transmission gear 403. When the motor drives the transmission shaft 2 to rotate, the second transmission gear 402 on the transmission shaft 2 will rotate in the same direction as the transmission shaft 2, and drive the third transmission gear 403 meshing with the second transmission gear 402 to rotate in the opposite direction. The third transmission gear 403 will drive the first transmission gear 401 meshing inside and outside to rotate in the direction of rotation of the third transmission gear 403. The rotation of the first transmission gear 401 will drive the fixedly connected furnace body 1 to rotate. Through the linkage cooperation between the gears, the furnace body 1 and the transmission shaft 2 in the furnace body 1 rotate in opposite directions. The furnace body 1 cooperates with the stirring blade 106 to flip and stir the material in the furnace, so that the material in the furnace can be more fully pyrolyzed, thereby improving the pyrolysis efficiency.

[0031] In one embodiment, see Figure 3 As shown, the inner wall of the pyrolysis chamber 107 is spirally provided with an exhaust pipe 103, the inlet end of the exhaust pipe 103 is arranged at one end of the pyrolysis chamber 107 close to the second support frame 302, and the outlet end of the exhaust pipe 103 is arranged at one end of the pyrolysis chamber 107 close to the preheating chamber 101, and the outlet end of the exhaust pipe 103 penetrates the pyrolysis chamber 107 and is connected to the external preheating pipe 104, and the gas outlet end of the preheating pipe 104 is aligned with the outer wall of the preheating chamber 101. The gas generated during pyrolysis enters from the inlet end of the exhaust pipe 103 and is discharged through the outlet end of the exhaust pipe 103. The exhaust pipe 103 spirally arranged on the inner wall of the pyrolysis chamber 107 can prolong the time that the gas stays in the pyrolysis chamber 107, so that the substances in the gas are fully pyrolyzed, thereby reducing the pollution of the gas generated by the waste to the atmospheric environment. The hot gas discharged after pyrolysis will be sprayed on the outer wall of the preheating chamber 101 through the connected preheating pipe 104, thereby heating the preheating chamber 101, without the need for additional heating equipment, saving resources.

[0032] In one embodiment, see Figure 1As shown, the preheating chamber 101 is provided with a feed port 102 at one end close to the first support frame 301, and the pyrolysis chamber 107 is provided with a discharge port 105 at one end close to the second support frame 302. When feeding, the sealed door built into the feed port 102 is opened, and the material enters through the feed port 102. After pyrolysis, the sealed door built into the discharge port 105 is opened, and the ash after pyrolysis leaves through the discharge port 105.

[0033] In one embodiment, see Figure 5 As shown, two mirror-image-arranged scattering rollers 1021 are provided in the feed port 102, and scattering claws 1022 are provided on the scattering rollers 1021. The scattering claws 1022 on adjacent scattering rollers 1021 are staggered. The scattering rollers 1021 are driven by a motor, and large pieces of debris are broken up by the scattering claws 1022 to improve the pyrolysis efficiency.

[0034] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A rotary pyrolysis furnace, characterized in that: It includes a furnace body, a transmission shaft, a first support frame, and a second support frame. The furnace body includes a preheating chamber and a pyrolysis chamber that are connected. One end of the transmission shaft passes through the preheating chamber and is rotatably arranged on the first support frame, and the other end passes through the pyrolysis chamber and is rotatably arranged on the second support frame. The transmission shaft is dynamically sealed with the furnace body, and a stirring blade is fixedly arranged on the transmission shaft, and the stirring blade is arranged in the pyrolysis chamber. A gear mechanism is provided between the second support frame and the pyrolysis chamber, and the gear mechanism includes a first transmission gear, a second transmission gear and a third transmission gear. The first transmission gear is fixedly arranged outside the pyrolysis chamber, and the first transmission gear is an internally meshed gear. The second transmission gear is fixedly arranged at a position of the transmission shaft close to the pyrolysis chamber. The first transmission gear is coaxial with the second transmission gear. The third transmission gear is rotatably connected to the second support frame through a shaft, and the first transmission gear and the second transmission gear are both meshed with the third transmission gear.

2. A rotary pyrolysis furnace according to claim 1, characterized in that: The furnace body maintains a certain angle with the horizontal plane, and the end where the preheating chamber is located is higher than the end where the pyrolysis chamber is located.

3. A rotary pyrolysis furnace according to claim 1, characterized in that: The inner wall of the pyrolysis chamber is spirally provided with an exhaust pipe.

4. A rotary pyrolysis furnace according to claim 3, characterized in that: The outlet end of the exhaust pipe passes through the pyrolysis chamber and is connected to the external preheating pipe, and the gas outlet end of the preheating pipe is aligned with the outer wall of the preheating chamber.

5. The rotary pyrolysis furnace according to claim 1, characterized in that: The preheating chamber is provided with a feed port at one end close to the first support frame, and the pyrolysis chamber is provided with a discharge port at one end close to the second support frame.

6. A rotary pyrolysis furnace according to claim 5, characterized in that: A scattering roller is arranged in the feed port.

Images