Temperature-regulated pyrolysis apparatus

Abstract

The application discloses a temperature-regulating pyrolysis device, which comprises a pyrolysis cylinder, a heating chamber, a plurality of exhaust pipes and a plurality of valves. The heating chamber is rotatably connected with the outer periphery of the pyrolysis cylinder at both ends, and the pyrolysis cylinder rotates relative to the fixed heating chamber. The heating chamber is provided with a heating gas inlet. The plurality of exhaust pipes are connected with the outside of the heating chamber. At least two exhaust pipes are respectively connected with different shaft sections of the heating chamber in the axial direction. Each exhaust pipe is provided with a valve. The temperature-regulating pyrolysis device can be used to open a certain exhaust pipe. The heating gas at the bottom of the heating chamber is heated from the bottom to the top of the outer wall of the pyrolysis cylinder corresponding to the shaft section of the exhaust pipe, and then is discharged from the heating chamber through the opened exhaust pipe. In this way, the heat is concentrated in the shaft section to a certain extent, and the temperature of the pyrolysis cylinder in the shaft section is locally increased. By controlling the on-off of the exhaust pipes of different shaft sections, the heating temperature of the pyrolysis cylinder in different shaft sections can be controlled.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and in particular to a temperature-controlled pyrolysis device. Background Technology

[0002] Cracking equipment is a common production device in the chemical industry. Existing cracking equipment mainly consists of a cracking cylinder and a heating chamber. The heating chamber is fitted around the outer circumference of the cracking cylinder, and the cracking cylinder rotates relative to the fixed heating chamber. The material tumbles and moves inside the cracking cylinder, and the heat generated in the heating chamber is transferred to the material inside the cracking cylinder through the cylinder wall. However, the flow of heating gas inside the heating chamber is uncontrollable, resulting in uncontrollable heating temperatures in different sections of the cracking cylinder, which is detrimental to the cracking reaction.

[0003] In summary, how to conveniently control the heating temperature of pyrolysis equipment has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a temperature-controlled pyrolysis device to facilitate the control of heating temperature.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A temperature-controlled pyrolysis device, comprising:

[0007] Pyrolysis cylinder;

[0008] A heating chamber, the two ends of which are rotatably and sealed to the outer periphery of the pyrolysis cylinder, the pyrolysis cylinder rotating relative to the fixedly disposed heating chamber, and heating gas being introduced into the heating chamber;

[0009] Multiple exhaust pipes are connected to the outside of the heating chamber, and at least two of the exhaust pipes are respectively connected to different axial segments of the heating chamber. Each exhaust pipe is equipped with a valve.

[0010] Preferably, in the above-mentioned temperature-controlled pyrolysis equipment, each of the exhaust pipes is arranged sequentially along the axial direction of the heating chamber.

[0011] Preferably, in the above-described temperature-controlled pyrolysis equipment, each of the exhaust pipes is vertically arranged at the top of the heating chamber.

[0012] Preferably, in the above-described temperature-controlled pyrolysis equipment, the spacing between each of the exhaust pipes is equal.

[0013] Preferably, the above-mentioned temperature-controlled pyrolysis equipment also includes an exhaust manifold, which is connected to each exhaust pipe.

[0014] Preferably, the above-mentioned temperature-controlled pyrolysis equipment further includes an auxiliary exhaust channel, the two ends of which are respectively connected to the exhaust manifold and the heating chamber.

[0015] Preferably, in the above-mentioned temperature-controlled pyrolysis equipment, the auxiliary exhaust channel and the exhaust manifold are flexibly connected by a pipe compensation connector.

[0016] Preferably, in the above-mentioned temperature-controlled pyrolysis equipment, the valve is an electric valve.

[0017] Preferably, the above-mentioned temperature-controlled pyrolysis equipment also includes manual valves installed in each of the exhaust pipes.

[0018] Preferably, in the above-mentioned temperature-controlled pyrolysis equipment, the wall of the heating chamber is further provided with a plurality of gas nozzle mounting ports arranged sequentially along the axial direction of the heating chamber for mounting gas nozzles.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The temperature-controlled pyrolysis device provided by the present invention includes a pyrolysis cylinder, a heating chamber, and multiple exhaust pipes; in a temperature-controlled pyrolysis device, the two ends of the heating chamber are rotatably sealed to the outer periphery of the pyrolysis cylinder, the pyrolysis cylinder rotates relative to the fixedly arranged heating chamber, and heating gas is introduced into the heating chamber; multiple exhaust pipes are connected to the outside of the heating chamber, at least two exhaust pipes are respectively connected to different shaft segments in the axial direction of the heating chamber, and each exhaust pipe is equipped with a valve.

[0021] This temperature-controlled pyrolysis equipment features multiple exhaust pipes connected to the heating chamber, with at least two pipes connected to different shaft sections within the heating chamber. Each exhaust pipe can be individually controlled via a valve. When an exhaust pipe is opened, the heating gas within the heating chamber, due to its inherent flow characteristics, is expelled through the opened pipe. As the heating gas flows through this pipe, it also passes upwards from the bottom of the heating chamber, circulating around the outer wall of the pyrolysis cylinder corresponding to that shaft section. During this process, heat exchange occurs between the heating gas and the cylinder wall of the corresponding shaft section, concentrating heat in that section and causing a localized temperature increase. By controlling the opening and closing of the exhaust pipes in different shaft sections, the heating temperature of the pyrolysis cylinder in those sections can be controlled, facilitating temperature control of the pyrolysis equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the main structure of a temperature-controlled pyrolysis device provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the main structure of the heating chamber of a temperature-controlled pyrolysis device according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the exhaust pipe of a temperature-controlled pyrolysis device provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of a gas nozzle in a temperature-controlled pyrolysis device provided in an embodiment of the present invention.

[0027] Among them, 1 is the pyrolysis cylinder, 2 is the heating chamber, 21 is the gas inlet and outlet, 22 is the waste outlet, 23 is the gas nozzle installation port, 3 is the auxiliary exhaust channel, 4 is the pipeline compensation connector, 5 is the exhaust main pipe, 6 is the exhaust pipe, 7 is the electric valve, 8 is the manual valve, and 9 is the gas nozzle. Detailed Implementation

[0028] The core of this invention is to provide a temperature-controlled pyrolysis device, which facilitates the control of heating temperature.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please refer to Figures 1-3 This invention provides a temperature-controlled pyrolysis device, including a pyrolysis cylinder 1, a heating chamber 2, and multiple exhaust pipes 6. The two ends of the heating chamber 2 are rotatably sealed to the outer periphery of the pyrolysis cylinder 1. The pyrolysis cylinder 1 rotates relative to the fixedly arranged heating chamber 2. Heating gas is introduced into the heating chamber 2. Multiple exhaust pipes 6 are connected to the outside of the heating chamber 2. At least two exhaust pipes 6 are respectively connected to different shaft segments in the axial direction of the heating chamber 2. Each exhaust pipe 6 is equipped with a valve.

[0031] This temperature-controlled pyrolysis equipment is equipped with multiple exhaust pipes 6 connected to the heating chamber 2, with at least two exhaust pipes 6 connected to different shaft sections of the heating chamber 2. Each exhaust pipe 6 can be individually controlled by a valve. When an exhaust pipe 6 is opened, the heating gas in the heating chamber 2, due to its own flow characteristics, is discharged from the heating chamber 2 through the opened exhaust pipe 6. During the flow of the heating gas through the exhaust pipe 6, the heating gas at the bottom of the heating chamber 2 also flows upwards around the outer wall of the pyrolysis cylinder 1 corresponding to the shaft section where the exhaust pipe 6 is located. In this process, the heating gas exchanges heat with the cylinder wall of the pyrolysis cylinder 1 corresponding to the shaft section where the exhaust pipe 6 is located, thereby concentrating the heat to a certain extent in that shaft section and locally increasing the temperature of that section of the pyrolysis cylinder 1. By controlling the opening and closing of the exhaust pipes 6 in different shaft sections, the heating temperature of the pyrolysis cylinder 1 in different shaft sections can be controlled, facilitating the control of the heating temperature of the temperature-controlled pyrolysis equipment.

[0032] Furthermore, in this embodiment, the exhaust pipes 6 are arranged sequentially along the axial direction of the heating chamber 2, that is, each exhaust pipe 6 is connected to a segment of the heating chamber 2, different exhaust pipes 6 correspond to different segments of the heating chamber 2, and each segment of the heating chamber 2 is connected to one exhaust pipe 6. This allows the heating temperature of each segment of the heating chamber 2 to be controlled independently, and the temperature control of the entire temperature-controlled pyrolysis equipment to be balanced. Of course, a segment of the heating chamber 2 can also be connected to at least two exhaust pipes 6, depending on the heating requirements.

[0033] Furthermore, in this embodiment, each exhaust pipe 6 is vertically arranged at the top of the heating chamber 2, and the exhaust pipes 6 are arranged parallel to each other. On the one hand, by utilizing the characteristic of rising heated gas, placing the exhaust pipes 6 at the top of the heating chamber 2 facilitates the discharge of heated gas and extends the discharge path of heated gas at the bottom of the heating chamber 2, thus ensuring sufficient heat exchange. On the other hand, the parallel arrangement of the exhaust pipes 6 facilitates installation and layout.

[0034] Of course, each exhaust pipe 6 can also be arranged in other parts of the heating chamber 2, and can be arranged arbitrarily in the space, as long as each exhaust pipe 6 is connected to different shaft segments of the heating chamber 2, and is not limited to the arrangement methods listed in this embodiment.

[0035] like Figure 1 and Figure 3As shown, further in this embodiment, the temperature-controlled pyrolysis equipment also includes an exhaust manifold 5, which is connected to each exhaust pipe 6. The exhaust manifold 5 is preferably parallel to the axial direction of the heating chamber 2. The heated gases exiting from each exhaust pipe 6 all converge into the exhaust manifold 5 and are ultimately discharged through it. The exhaust manifold 5 facilitates the centralized collection and treatment of the heated waste gases. Of course, it is also possible to discharge the waste gases only through each exhaust pipe 6.

[0036] Furthermore, in this embodiment, the temperature-controlled pyrolysis equipment also includes an auxiliary exhaust channel 3, with its two ends connected to the exhaust manifold 5 and the heating chamber 2, respectively. No valves are installed in the auxiliary exhaust channel 3, and the auxiliary exhaust channel 3 is in a conductive state. Therefore, when it is not necessary to control the heating temperature of each shaft section, the heating exhaust gas in the heating chamber 2 can be discharged through the auxiliary exhaust channel 3 to the exhaust manifold 5 and finally discharged.

[0037] As an optimization, in this embodiment, the auxiliary exhaust channel 3 and the main exhaust pipe 5 are flexibly connected by a pipe compensation connector 4. Since the auxiliary exhaust channel 3 is fixed to the top of the heating chamber 2, and the main exhaust pipe 5 and exhaust pipe 6 are also fixed to the top of the heating chamber 2, their relative positions may change due to thermal expansion and contraction. Therefore, the auxiliary exhaust channel 3 and the main exhaust pipe 5 are flexibly connected by the pipe compensation connector 4. The pipe compensation connector 4 can be a corrugated pipe structure, etc., capable of flexible deformation.

[0038] In this embodiment, the valve is an electric valve 7, which can automatically control the opening and closing of the electric valve 7 and the degree of opening. Specifically, the electric valve 7 is a high-temperature proportional valve. When the temperature of a certain shaft section of the pyrolysis cylinder 1 needs to be increased, the electric valve 7 of the exhaust pipe 6 of the corresponding shaft section is opened or opened wider; conversely, the electric valve 7 is closed or closed less. Of course, the valve can also be a manual valve, and the opening and closing of the valve can be controlled manually.

[0039] Furthermore, in the case where the valve is an electric valve 7, in this embodiment, the temperature-controlled pyrolysis equipment also includes a manual valve 8 installed in the exhaust pipe 6. When the electric valve 7 cannot be closed properly or cannot be closed at all due to dust accumulation in the exhaust pipe 6, the exhaust pipe is closed by using the manual valve 8.

[0040] like Figure 2 As shown, further, in this embodiment, the cavity wall of the heating chamber 2 is provided with a plurality of gas nozzle mounting ports 23 arranged sequentially along the axial direction of the heating chamber 2 for mounting gas nozzles 9. The gas nozzles 9 are used to introduce high-pressure gas, cold air or oxygen-containing gas into the heating chamber 2.

[0041] Its working principle is as follows: After a period of use, the outer wall of the temperature-controlled pyrolysis equipment will accumulate a certain amount of ash in the heating chamber 2, resulting in poor thermal conductivity of the pyrolysis cylinder 1 and hindering its heating. Therefore, gas nozzles 9 are installed in the gas nozzle mounting ports 23 of the heating chamber 2. High-pressure gas is introduced into the heating chamber 2 through the gas nozzles 9. The high-pressure gas blows into the heating chamber 2, dispersing the accumulated ash on the outer wall of the pyrolysis cylinder 1 and leading it out through the exhaust pipe 6 with the airflow. Multiple gas nozzles 9 can be installed in multiple gas nozzle mounting ports 23. The multiple gas nozzles 9 are arranged sequentially along the axial direction of the heating chamber 2. Therefore, different sections of the cylinder wall of the pyrolysis cylinder 1 can be cleaned by different gas nozzles 9.

[0042] Of course, the gas nozzle 9 can also be used to cool the heating chamber 2. When the temperature inside the heating chamber 2 is too high, cold air can be introduced into the heating chamber 2 through the gas nozzle 9. Cold air can be introduced through the gas nozzle 9 corresponding to different shaft sections to cool different shaft sections of the heating chamber 2.

[0043] In addition, the gas nozzle 9 can also be used to supplement oxygen. When combustion heating is carried out in the heating chamber 2, if the combustion is incomplete, oxygen-containing gas can be introduced into the heating chamber 2.

[0044] like Figure 4 As shown, in this embodiment, the gas nozzle 9 has a flat, flared structure, meaning the air inlet of the gas nozzle 9 is smaller than the air outlet, and the air outlet is rectangular. This gas nozzle 9 can output high-pressure gas. Of course, the gas nozzle 9 can also have other structural forms and is not limited to the forms listed in this embodiment.

[0045] like Figure 1 As shown, in this embodiment, the heating chamber 2 includes a first cavity and a first top cover. The first top cover is sealed to the top of the first cavity. The cavity wall of the first cavity consists of a high-temperature resistant layer, a heat insulation layer, and an outer reinforcing layer, arranged sequentially from the inside out. The two ends of the pyrolysis cylinder 1 are rotatably and sealingly connected to the first cavity. The first cavity can have a rectangular or circular cross-section. The first top cover is an arc-shaped top cover or a flat top plate, preferably an arc-shaped top cover, which has high structural strength. The first top cover is a high-temperature resistant top cover, capable of withstanding high temperatures. A gas inlet and outlet 21 is provided on the first top cover for the entry and exit of gas. A waste outlet 22 is provided at the bottom of the first cavity for the discharge of waste generated during combustion within the heating chamber.

[0046] In this embodiment, the temperature-controlled pyrolysis equipment also includes a temperature sensor and / or a pressure sensor disposed in the heating chamber 2 and / or the pyrolysis cylinder 1. The temperature sensor detects the temperature in the heating chamber 2 and / or the pyrolysis cylinder 1, and the pressure sensor detects the pressure in the heating chamber 2 and / or the pyrolysis cylinder 1. The pyrolysis reaction is then manually or automatically controlled based on the detected temperature and pressure.

[0047] In this embodiment, the pyrolysis cylinder 1 is driven to rotate by a driving device. The driving device mainly includes a motor, a reducer, a gear ring, support rollers, and a rotating ring. The rotating ring is preferably disposed on the outer periphery of both ends of the pyrolysis cylinder 1. The rotating ring is supported by the support rollers below. The motor is reduced in speed by the reducer and then engages with the gear ring. The gear ring is fixed to the outer periphery of one end of the pyrolysis cylinder 1. The motor drives the gear ring to rotate, thereby driving the pyrolysis cylinder 1 to rotate. Of course, the driving device can also have other structural forms and is not limited to the forms listed in this embodiment.

[0048] In this embodiment, the two ends of the heating chamber 2 are connected to the outer wall of the pyrolysis cylinder 1 by a contact friction type rotary seal. Since the pyrolysis cylinder 1 rotates slowly, a simple rotary seal connection between the heating chamber 2 and the pyrolysis cylinder 1 can be achieved through a simple rotary structure. To improve the structural strength of the rotary seal, the wall thickness of the pyrolysis cylinder 1 is increased at the contact friction points with the heating chamber 2. Of course, the heating chamber 2 and the pyrolysis cylinder 1 can also be connected by other rotary seal structures.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature-regulated pyrolysis apparatus, characterized by, The utility model relates to a kind of pyrolysis devices, including: Pyrolysis cylinder (1); Heating chamber (2), both ends of the heating chamber (2) are rotationally sealed with the outer periphery of the pyrolysis cylinder (1), the pyrolysis cylinder (1) is rotationally moved with the heating chamber (2) fixedly arranged, and the heating chamber (2) is used for passing into heating gas; Multiple exhaust pipes (6) are communicated with the outside of the heating chamber (2), at least two exhaust pipes (6) are respectively communicated with different shaft sections in the axial direction of the heating chamber (2), a valve is provided on each exhaust pipe (6), and the valve is an electric valve (7); Each exhaust pipe (6) is sequentially arranged in the axial direction of the heating chamber (2); Each exhaust pipe (6) is vertically arranged on the top of the heating chamber (2); It further includes exhaust manifold (5), and the exhaust manifold (5) is communicated with each exhaust pipe (6); It further includes auxiliary exhaust passage (3), and both ends of the auxiliary exhaust passage (3) are communicated with the exhaust manifold (5) and the heating chamber (2) respectively; The cavity wall of the heating chamber (2) is further provided with a plurality of gas jet head mounting ports (23) sequentially arranged in the axial direction of the heating chamber (2), and a gas jet head (9) is mounted in the gas jet head mounting port (23); The gas jet head (9) is used for passing high-pressure gas, cold air or oxygen-containing gas into the heating chamber (2).

2. The tempering pyrolysis apparatus of claim 1, wherein The spacing between each exhaust pipe (6) is equal.

3. The tempering pyrolysis apparatus of claim 1, wherein, The auxiliary exhaust passage (3) and the exhaust manifold (5) are flexibly connected by a pipe compensation connector (4).

4. The tempering pyrolysis apparatus of claim 1, wherein, It further includes a manual valve (8) arranged in each exhaust pipe (6).

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