CN220393625U - Parallel waste thermal cracking system - Google Patents

Abstract

The utility model relates to a parallel waste thermal cracking system, which comprises a feeding module, a heating device and a control module, wherein the feeding module is provided with a feeding heater, and the feeding heater is used for converting the phase of the fed material into gas-liquid-solid tri-state; the cracking furnace is connected with the feeding module and is provided with a cracking heater for gasifying the entering liquid material; the gas and liquid treatment module is connected with the cracking furnace and is used for partially liquefying the entering gaseous materials; the solid material distributor is connected with the cracking furnace; a plurality of solid treatment modules respectively connected with the solid material distributor, wherein each solid treatment module is provided with a solid heater for at least partially sublimating the entering solid material, each solid processing module is also connected to the gas and liquid processing module respectively, so that gas generated by sublimation in the solid processing module enters the gas and liquid processing module, and the improvement of cracking efficiency can be realized.

Description

Parallel waste thermal cracking system

Technical Field

The utility model relates to the field of waste treatment, in particular to a parallel waste thermal cracking system.

Background

With the continuous improvement of living standard, the produced living waste is also continuously increased, and the waste plastic is a common living waste. Waste plastics pollute the environment and require pyrolysis treatment. However, in the existing waste thermal cracking system, the cracking is not thorough, a large amount of harmful gas generated in the cracking process still pollutes the environment, the feeding of the cracking system is not smooth with the cracking process, after the feeding is finished, the feeding module needs to stop for waiting for the completion of the cracking, and the cracking efficiency of the whole system needs to be improved.

Disclosure of Invention

In view of the above, the utility model aims to provide a parallel waste thermal cracking system, which improves the connection smoothness of feeding and cracking and improves the cracking efficiency.

The embodiment of the utility model provides a parallel waste thermal cracking system, which comprises: the feeding module is provided with a feeding heater, and the feeding heater is used for converting the phase of the fed material into a gas-liquid-solid tri-state; the cracking furnace is connected with the feeding module and is provided with a cracking heater for gasifying the entering liquid material; the gas and liquid treatment module is connected with the cracking furnace and is used for partially liquefying the entering gaseous materials; the solid material distributor is connected with the cracking furnace; a plurality of solid treatment modules respectively connected with the solid material distributor, wherein each solid treatment module is provided with a solid heater for at least partially sublimating the entering solid material, each solid processing module is also connected to the gas and liquid processing module respectively, so that the gas generated by sublimation in the solid processing module enters the gas and liquid processing module.

According to a preferred embodiment of the utility model, a valve is arranged between the solids distributor and each of the solids processing modules, the solids distributor being in communication with only one of the solids processing modules at a time.

According to a preferred embodiment of the utility model, the material distributor is a box body, and a conical boss is arranged on the inner bottom surface of the material distributor; the solid processing modules are connected with the material distributor, are arranged on the bottom surface of the material distributor and are circumferentially distributed along the bottom edge of the conical boss.

According to a preferred embodiment of the utility model, the gas and liquid treatment module comprises a plurality of sets of condensers and oil drums, wherein gaseous material is stored after being liquefied by the condensers.

According to a preferred embodiment of the utility model, the gas and liquid treatment module further comprises: a catalytic barrel connected with the cracking furnace; and the U-shaped elbow is connected with the condenser.

According to a preferred embodiment of the utility model, the solids processing module comprises a pyrolysis drum, the solids heater being located on the pyrolysis drum; one end of each cracking barrel is connected to the solid material distributor, and the other end is connected to the cooling barrel.

According to a preferred embodiment of the utility model, the bottom of the pyrolysis barrel and/or the cooling barrel is spherical.

According to a preferred embodiment of the present utility model, the pyrolysis barrel comprises a first pyrolysis barrel, a second pyrolysis barrel, a third pyrolysis barrel, and a fourth pyrolysis barrel; the first cracking barrel is provided with a first connecting pipe, the second cracking barrel is provided with a second connecting pipe, and the first connecting pipe and the second connecting pipe are connected to the gas and liquid treatment module in parallel; the third cracking barrel is provided with a third connecting pipe, the fourth cracking barrel is provided with a fourth connecting pipe, and the third connecting pipe and the fourth connecting pipe are connected in parallel to the gas and liquid treatment module.

According to a preferred embodiment of the utility model, the cracking furnace, the cracking barrel and the cooling barrel are provided with blade mechanisms; the blade mechanism comprises a hollow rotating shaft and a lifting shaft movably arranged in the rotating shaft, wherein the rotating shaft is positioned in the cracking furnace, the cracking barrel and the end part of the cooling barrel are connected with at least one blade, and the lifting shaft is positioned in the cracking furnace, the cracking barrel and the end part of the cooling barrel are connected with at least one rotary blade.

According to a preferred embodiment of the utility model, the feeding module comprises a feeding hopper, a feeding screw connected with the feeding hopper, a driving motor connected with the feeding screw and a feeding sleeve sleeved on the feeding screw, and the tail end of the feeding sleeve is connected with the cracking furnace.

According to a preferred embodiment of the utility model, the feed heater is arranged on the feed screw and/or the feed sleeve, the heating temperature of the feed heater increasing gradually in the feed direction; and the radial dimension of the end of the feed sleeve gradually decreases along the feed direction.

According to the embodiment of the utility model, the feeding distribution of the solid processing modules is controlled through the solid material distributor, so that the feeding of the previous solid processing module is finished, the feeding of the next solid processing module is started in the cracking process, and when the feeding of the last solid processing module is finished, the cracking of the first solid processing module is finished, the feeding of the solid processing modules can be carried out again, so that the smooth connection between the feeding of the solid processing modules and the cracking is achieved, the cracking efficiency is improved, the raw materials are thoroughly decomposed into gas-liquid-solid tri-states through the gas and liquid processing modules and the solid processing modules, the subsequent processing can be respectively carried out, and the environmental pollution caused by incomplete cracking products in the cracking process is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a parallel thermal waste cracking system according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of a pyrolysis drum according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a solid material dispenser and a tapered boss according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a cracking furnace and a blade according to an embodiment of the present utility model;

fig. 5 is a partial enlarged view of a portion a in fig. 4;

fig. 6 is a partial enlarged view of a portion B in fig. 4;

fig. 7 is a partial enlarged view of a portion C in fig. 4.

Detailed Description

The description of the embodiments of this specification should be taken in conjunction with the accompanying drawings, which are a complete description of the embodiments. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated simply or conveniently. Furthermore, portions of the structures in the drawings will be described in terms of separate descriptions, and it should be noted that elements not shown or described in the drawings are in a form known to those of ordinary skill in the art.

Any references to directions and orientations in the description of the embodiments herein are for convenience only and should not be construed as limiting the scope of the utility model in any way. The following description of the preferred embodiments will refer to combinations of features, which may be present alone or in combination, and the utility model is not particularly limited to the preferred embodiments. The scope of the utility model is defined by the claims.

As shown in fig. 1, the parallel waste thermal cracking system of the embodiment of the present utility model includes a feed module 1, a cracking furnace 2, a gas and liquid treatment module 3, a solid material distributor 40, and a plurality of solid treatment modules 4. The feed module 1 has a feed heater (not shown) for phase change of the incoming material into gas-liquid-solid tri-states. A cracking furnace 2 is connected to the feed module 1, the cracking furnace 2 having a cracking heater (not shown) for gasifying the incoming liquid material. The gas and liquid treatment module 3 is connected with the cracking furnace 2, and the gas and liquid treatment module 3 is used for partially liquefying the entering gaseous materials. The solids distributor 40 is connected to the cracking furnace 2. The plurality of solid treatment modules 4 are respectively connected with the solid material distributor 40, each solid treatment module 4 is provided with a solid heater (not shown), the solid material is at least partially sublimated by the solid heater, each solid treatment module 4 is also respectively connected with the gas and liquid treatment module 3, and the sublimated gas in the solid treatment module 4 enters the gas and liquid treatment module 3.

According to the embodiment of the utility model, the feeding distribution of the solid processing modules is controlled through the solid material distributor, so that the feeding of the previous solid processing module is finished, the feeding of the next solid processing module is started in the cracking process, and when the feeding of the last solid processing module is finished, the cracking of the first solid processing module is finished, the feeding of the solid processing modules can be carried out again, so that the smooth connection between the feeding of the solid processing modules and the cracking is achieved, the cracking efficiency is improved, the raw materials are thoroughly decomposed into gas-liquid-solid tri-states through the gas and liquid processing modules and the solid processing modules, the subsequent processing can be respectively carried out, and the environmental pollution caused by incomplete cracking products in the cracking process is avoided.

The cracking system of the embodiment of the utility model can treat various types of waste materials, such as waste plastics and the like.

As shown in fig. 1, in the present embodiment, the feed module 1 includes a feed screw 11, a feed hopper 12, a drive motor 13, a reduction gearbox 14, and a feed sleeve 111. Wherein, the feeding sleeve 111 is sleeved on the feeding screw 11, and forms an inner space extending spirally with the screw thread clearance of the feeding screw 11. The inlet end of the feed screw 11 is connected with the outlet of the feed hopper 12, the outlet end of the feed screw 11 is connected with the cracking furnace 2, the driving motor 13 is connected with the reduction gearbox 14, and the reduction gearbox 14 is connected with the feed screw 11 and drives the feed screw 11 to rotate. After the raw material enters the feed screw 11 and the feed sleeve 111 from the feed hopper 12, the feed screw 11 is rotated by the drive of the drive motor 13 and the reduction gearbox 14, the raw material is spirally advanced in the screw gap of the feed screw 11, and finally enters the cracking furnace 2. The heating range of the feed heater covers the feed screw 11 so that the raw material is heated gradually as it advances spirally in the feed screw 11 and is decomposed into three-phase raw material when it enters the cracking furnace 2. It should be appreciated that in other embodiments, the feed screw 11 may be one or any of a plurality of in-line in various ways.

In this embodiment, a feeding heater is disposed on the feeding screw 11 and/or the feeding sleeve 111, and the feeding heater may have one or more feeding heaters, which may be, but not limited to, a high frequency heater or an infrared heater, and the heating temperature of the feeding heater is gradually increased along the feeding direction of the feeding screw 11, so that the raw material is gradually warmed, and the raw material is gradually changed into a tri-state during the feeding process. For example, the feeding heaters may be high-frequency heaters which are arranged in groups from the feeding end to the discharging end, and each feeding heater is heated locally, so that the purpose of heating the raw materials gradually along the feeding direction is achieved.

In this embodiment, a feeder (not shown) is further disposed between the outlet of the feeding hopper 12 and the feeding screw 11, and is electrically driven to apply pressure to the raw material in the feeding hopper 12, so as to press the raw material near the outlet of the feeding hopper 12 into the feeding screw 11, thereby increasing the feeding efficiency and avoiding the raw material from accumulating in the feeding hopper 12.

In this embodiment, the radial dimension of the end of the feed sleeve 111 is gradually reduced along the feed direction, and a certain pressure is generated so that the gas-liquid-solid three-phase raw material is easier to enter the cracking furnace 2.

As shown in fig. 1, in the present embodiment, a cracking heater is provided on the cracking furnace 2, which may be an infrared radiation heater or a high frequency heater. After the three-phase raw materials are injected into the cracking furnace 2 through the feeding screw 11, the coating is coated on the surface of the inner wall of the cracking furnace 2, the liquid materials are gasified into gas by heating of the cracking heater, and enter the upper gas and liquid treatment module 3 together with the original gas materials, and the solid materials enter the lower solid material distributor 40 downwards. If part of the solid material is gasified, the gasified gas also enters the gas and liquid treatment module 3 together upwards. In addition, in this embodiment, the cracking furnace 2 is further provided with a vane mechanism for uniformly coating the inner wall surface with the incoming material, which will be described in detail later.

In the present embodiment, pressure and temperature sensors (not shown) are further provided on the cracking furnace 2 for sensing the pressure in the cracking furnace 2 to control the gas inlet amount and sensing the temperature in the cracking furnace 2 to control the heating temperature, respectively.

In this embodiment, the gas and liquid treatment module 3 further comprises an oil drum, a U-bend 33 and a catalytic drum 31, as shown in fig. 1. The oil drum is used for storing liquefied materials, and comprises a first oil drum 32, a second oil drum 35 and a third oil drum 36, wherein a U-shaped elbow 33 is used for avoiding gas backflow, and a catalyst is arranged in a catalytic drum 31.

Specifically, the catalytic barrel 31 is disposed at the front end of the gas and liquid processing module 3, and is connected to the cracking furnace 2, the gaseous material coming out from the outlet above the cracking furnace 2 enters the catalytic barrel 31 first, the catalytic barrel 31 is filled with a catalyst, and the catalytic gaseous material (in this embodiment, waste plastic cracking oil gas) increases the cetane number, reduces the polymer chain, and reduces the viscosity. The catalytic barrel 31 is also provided with a heater (not shown) for heating the material during the catalytic process to improve the catalytic efficiency. The catalytic basket 31 is provided with pressure and temperature sensors (not shown) for sensing the pressure in the catalytic basket 31 to control the gas inflow amount and sensing the temperature in the cracking furnace 2 to control the heating temperature, respectively. In addition, in the present embodiment, a vane mechanism is further provided in the catalytic bucket 31 for preventing the catalyst from sticking, and the specific structure will be described later.

The catalyzed gaseous material enters the first oil drum 32 from the catalytic drum 31, the inlet of the first oil drum 32 is positioned at the upper part of the side surface of the first oil drum, the entering gaseous material enters along the tangent line of the side wall, and the gaseous material swirls in the first oil drum 32 to exchange cold and heat with air, thereby realizing temperature reduction. A portion of the gaseous material is liquefied and phase-changed into a liquid state and deposited at the bottom of the first oil drum 32, and the non-liquefied gaseous material enters the U-bend 33.

The gaseous material enters the U-shaped elbow 33 and then continues to enter the condenser 34, in the process, the gaseous material flowing in the U-shaped elbow 33 is partially liquefied under the temperature reduction of air, and is deposited at the bottom of the U-shaped elbow 33 in a liquid state, and the other part of the non-liquefied gaseous material enters the condenser 34. After a period of deposition, the U-shaped bottom of the U-bend 33 is filled with liquid, preventing backflow of gaseous material into the condenser 34.

The U-bend 33 may be followed by one or more condensers 34, for example two in this embodiment, the condensers 34 being multitube heat exchangers, the exterior of the multitube being water cooled, the gas passing from the interior of the multitube so that the gas is at least partially liquefied. The gaseous material is partially liquefied after entering the condenser 34, the liquefied gas enters the second oil drum 35 and is deposited at the bottom of the second oil drum 35, and the gaseous material which is not liquefied enters the second oil drum 35 and then enters the other group of condensers 34 again through the top outlet of the second oil drum 35. The condenser 34 may likewise be provided with one or more, in this embodiment one. After gas-liquid separation again by the condenser 34, liquid is deposited at the bottom of the third oil drum 36, and the non-liquefiable gaseous material is a combustible gas.

In this embodiment, a compressor 37 is connected to the third oil tank 36, and the other side of the compressor 37 is connected to an air tank 38. The combustible gas which cannot be liquefied in the third oil tank 36 is detected by the compressor 37 with a small change in pressure, and then is sent to the gas storage tank 38 for storage by the compressor 37. The gas storage barrel 38 is provided with a pressure gauge, a safety valve and a safety alarm device for ensuring the safety of the combustible gas.

In addition, a conveying pipe (not shown) may be connected to each of the first, second and third oil tanks 32, 35 and 36 for conveying the accumulated liquid material to a storage container for subsequent processing. Therefore, the gas and liquid materials are subjected to cracking treatment through the gas and liquid treatment module 3, the gas materials are fully cracked through the multistage liquefaction process, the produced gas and liquid products are respectively stored in the respective containers and are ready for the treatment of the next working procedure, the pollution of harmful gas/liquid to the environment is avoided, and the efficient and environment-friendly treatment is achieved.

As shown in fig. 1 and 2, in the present embodiment, the solid treatment module 4 includes a first pyrolysis tub 41, a second pyrolysis tub 42, a third pyrolysis tub 43, and a fourth pyrolysis tub 44 in an annular arrangement. And, one end of the first, second, third and fourth pyrolysis barrels 41, 42, 43 and 44 is connected to the solid material distributor 40, and the other end is connected to the cooling barrel 45.

Valves are arranged between the solid material distributor 40 and the first cracking barrel 41, the second cracking barrel 42, the third cracking barrel 43 and the fourth cracking barrel 44, and are respectively a first valve 412 between the solid material distributor 40 and the first cracking barrel 41, a second valve 422 between the solid material distributor 40 and the second cracking barrel 42, a third valve 432 between the solid material distributor 40 and the third cracking barrel 43 and a fourth valve 442 between the solid material distributor 40 and the fourth cracking barrel 44. At the same time, only one of the first valve 412, the second valve 422, the third valve 432, and the fourth valve 442 is in an open state, and the other is in a closed state. So that the solids distributor 40 feeds only one pyrolysis drum at a time.

As shown in fig. 3, in the present embodiment, the solid material distributor 40 is a box body, on the inner bottom surface of which a tapered boss 401 is provided, and each solid material treatment module 4 is connected to the solid material distributor 40 through a pyrolysis barrel, specifically, the positions where the first pyrolysis barrel 41, the second pyrolysis barrel 42, the third pyrolysis barrel 43, and the fourth pyrolysis barrel 44 are connected to the solid material distributor 40 are on the bottom surface of the solid material distributor 40 and distributed along the bottom edge of the tapered boss 401 in the circumferential direction.

The conical boss 401 may be in a conical form or a pyramid form, or may be in a prismatic form, and after the solid material in the cracking furnace 2 enters the solid material distributor 40 from the distributor feed valve 46 above the solid material distributor 40, the solid material slides down along the side surface of the conical boss 401, moves towards the bottom of the conical boss 401, and enters the corresponding cracking barrel from the valve in an open state among the first valve 412, the second valve 422, the third valve 432 and the fourth valve 442.

As shown in fig. 1, in the present embodiment, a first connection pipe 411 is provided on the first cracking barrel 41, and the first connection pipe 411 is used for sending the gas in the first cracking barrel 41 into the catalytic barrel 31 of the gas and liquid treatment module 3. Specifically, the solid material in the solid material distributor 40 enters the first cracking barrel 41 from below through the first valve 412, and a vane mechanism is provided in the first cracking barrel 41, and the specific structure of the vane mechanism will be described in detail later. Under the rotation of the blades, the solid material always moves towards the bottom of the first pyrolysis drum 41. The bottom of the first pyrolysis drum 41 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the first pyrolysis drum 41, which may be an infrared radiation heater or a high frequency heater. The solid material in the first cracking barrel 41 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid treatment module 3 for treatment through the first connecting pipe 411, and the non-sublimated solid material enters the cooling barrel 45 from the bottom of the first cracking barrel 41 through the fifth valve 413. The first pyrolysis tub 41 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the first pyrolysis tub 41 to control the gas inlet amount, and sensing the temperature in the first pyrolysis tub 41 to control the heating temperature, respectively.

As shown in fig. 1, in the present embodiment, a second connection pipe 421 is provided on the second cracking barrel 42, and the second connection pipe 421 is used for feeding the gas in the second cracking barrel 42 into the catalytic barrel 31 of the gas and liquid treatment module 3. Specifically, the solid material in the solid material distributor 40 passes through the second valve 422 from below into the second cracking barrel 42, and a vane mechanism is provided in the second cracking barrel 42, and the specific structure of the vane mechanism will be described in detail later. Under the rotation of the blades, the solid material is always moved toward the bottom of the second pyrolysis drum 42. The bottom of the second pyrolysis drum 42 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the second pyrolysis drum 42, which may be an infrared radiation heater or a high frequency heater. The solid material in the second cracking barrel 42 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid treatment module 3 for treatment through the second connecting pipe 421, and the non-sublimated solid material enters the cooling barrel 45 from the bottom of the second cracking barrel 42 through the sixth valve 423. The second pyrolysis tub 42 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the second pyrolysis tub 42 to control the gas inlet amount, and sensing the temperature in the second pyrolysis tub 42 to control the heating temperature, respectively.

As shown in fig. 1, in the present embodiment, a third connection pipe 431 is provided on the third cracking barrel 43, and the third connection pipe 431 is used for feeding the gas in the third cracking barrel 43 into the catalytic barrel 31 of the gas and liquid processing module 3. Specifically, the solid material in the solid material distributor 40 enters the third cracking barrel 43 from below through the third valve 432, and a vane mechanism is provided in the third cracking barrel 43, and the specific structure of the vane mechanism will be described in detail later. Under the rotation of the blades, the solid material always moves towards the bottom of the third cracking barrel 43. The bottom of the third pyrolysis drum 43 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the third pyrolysis drum 43, which may be an infrared radiation heater or a high frequency heater. The solid material in the third cracking barrel 43 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid treatment module 3 for treatment through the third connecting pipe 431, and the non-sublimated solid material enters the cooling barrel 45 from the bottom of the third cracking barrel 43 through the seventh valve 433. The third pyrolysis tub 43 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the third pyrolysis tub 43 to control the gas inlet amount, and sensing the temperature in the third pyrolysis tub 43 to control the heating temperature, respectively.

As shown in fig. 1, in the present embodiment, a fourth connection pipe 441 is provided on the fourth cracking barrel 44, and the fourth connection pipe 441 is used for feeding the gas in the fourth cracking barrel 44 into the catalytic barrel 31 of the gas and liquid treatment module 3. Specifically, the solid material in the solid material distributor 40 enters the fourth cracking barrel 44 from below through the fourth valve 442, and a vane mechanism is provided in the fourth cracking barrel 44, and the specific structure of the vane mechanism will be described in detail later. Under the rotation of the blades, the solid material is always moving toward the bottom of the fourth cracking barrel 44. The bottom of the fourth pyrolysis drum 44 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the fourth pyrolysis drum 44, which may be an infrared radiation heater or a high frequency heater. The solid material in the fourth cracking barrel 44 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid treatment module 3 for treatment through the fourth connecting pipe 441, and the non-sublimated solid material enters the cooling barrel 45 from the bottom of the fourth cracking barrel 44 through the eighth valve 443. The fourth pyrolysis tub 44 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the fourth pyrolysis tub 44 to control the gas inlet amount, and sensing the temperature in the fourth pyrolysis tub 44 to control the heating temperature, respectively.

As shown in fig. 1, in the present embodiment, the first connection pipe 411 and the second connection pipe 421 are connected in parallel to the catalytic bucket 31 of the gas and liquid treatment module 3 using the first three-way joint 451. The third connection pipe 431 and the fourth connection pipe 441 are connected in parallel to the catalytic bucket 31 of the gas and liquid treatment module 3 using a second three-way joint 452.

As shown in fig. 1, in this embodiment, the solid material not sublimated in the first pyrolysis barrel 41, the second pyrolysis barrel 42, the third pyrolysis barrel 43 and the fourth pyrolysis barrel 44 enters the cooling barrel 45, the bottom of the cooling barrel 45 is also spherical, and the cooling barrel 45 is provided with a blade mechanism, which will be described in detail later, and the solid material always moves toward the bottom center of the cooling barrel 45 under the rotation of the blade. The bottom of the cooling tub 45 is water cooled with a barrier, however, in other embodiments, other cooling devices having the same effect as water cooled with a barrier may be provided on the cooling tub 45, so that the solid material entering the cooling tub 45 is further cooled. Because the solid material is higher in temperature when entering the cooling barrel 45 from the first cracking barrel 41, the second cracking barrel 42, the third cracking barrel 43 and the fourth cracking barrel 44, the solid material needs to be stirred by the blades and cooled by water, and after being cooled to normal temperature, the solid material enters the carbon storage tank 48 for storage through the discharge valve 47 at the bottom of the cooling barrel 45.

As shown in fig. 4 to 7, the cracking furnace of the present embodiment is schematically shown in cross section. The cracking furnace 2 is provided with a vane mechanism, and specifically, the cracking furnace 2 is provided with a first frame, which is formed by mounting a first frame riser 505 and a first frame riser support plate 506, and a second frame riser 508. The second reducing motor 525 is installed on the upper portion of the second frame 508, the second reducing motor 525 is connected with the rotating shaft 518 and drives the rotating shaft 518 to rotate, the first sealing ring 516 is installed on the bottom of the rotating shaft 518 in the cracking furnace 2 for high-temperature sealing, and the shaft bottom blank cap 515 is arranged for sealing a cover to prevent internal gas leakage. A shaft housing 514 having a key groove is mounted to the bottom of the rotation shaft 518, and a blade (not shown) is mounted to an external key groove of the shaft housing 514. To ensure concentric rotation of the rotary shaft 518 within the cracking furnace 2, a bearing housing 512 and a knuckle bearing 519 (high temperature bearing) are internally installed under the flange cover of the cracking furnace 2, positioned by the bearing housing positioning seat 511, and covered by the bearing housing cover 513. The cooling jacket 520 is arranged above the flange cover of the cracking furnace 2 to avoid the transmission of the height Wen Xiangshang. The rotary shaft 518 is arranged on the upper part of the flange cover of the cracking furnace 2 to prevent heat from being transferred upwards, the flange cover 521 is provided with a water jacket 521, the upper part and the lower part of the water jacket 521 are connected by a high-temperature sealing ring to prevent the height Wen Xieliu, and the water jacket 521 is also provided with a mechanical seal 522 to prevent gas in the cracking furnace 2 from leaking. The upper part of the rotary shaft 518 is fixed in a shaft sleeve of a second gear motor 525, the top is sealed by a second sealing ring 527, and the rotary shaft 518 is fixed by a spindle nut 526.

In order to prevent the blockage in the cracking furnace 2 from being blocked, the rotary shaft 518 is provided as a hollow shaft, and a lifting shaft 517 is movably provided inside the rotary shaft 518. The bottom of the lifting shaft 517 is provided with a rotary blade 531, the rotary blade is fixed by a shaft bottom bolt 530, the lower part of the lifting shaft 517 is fixed in the first sealing ring 516, the top is provided with a linear bearing 529, the linear bearing 529 is used for fixing the central positioning of the lifting shaft 517, and an oil seal blank cap 528 is arranged below the linear bearing 529 and used for sealing the cover. The top of the lifting shaft 517 is fixed in a shaft sleeve of the first gear motor 501, and is driven by the first gear motor 501 to rotate, and the lifting shaft 517 further drives a screw (not shown) to perform up-and-down movement by the worm and gear assembly 503. The lifting and rotating movement of the lifting shaft 517 can push the material at the bottom of the cracking furnace 2 to avoid material blockage.

The middle part of the lifting shaft 517 is also provided with a fixed water jacket 523, a rotary water jacket 524 is arranged above the fixed water jacket 523, the rotary water jacket 524 is connected to a cooling water system through a pipeline (not shown), after cooling water circulates into the rotary water jacket 524, the rotary water jacket 523 and the lifting shaft 517 synchronously rotate, and cooling water in the rotary water jacket 523 flows into the fixed water jacket 523 for recycling and discharging, so that the lifting shaft 517 is cooled to avoid high temperature spreading above the lifting shaft 517.

In addition, the first gear motor 501 is disposed on the first gear motor lower plate 502, the second gear motor 525 is disposed on the second gear motor lower plate 507, the second gear motor support upper plate 509 and the second gear motor support lower plate 510, and the worm gear assembly 503 is disposed on the worm gear lower plate 504, which is not described herein in detail.

The above is the structure of the vane mechanism in the cracking furnace 2, and besides, the same vane structure may be provided in the catalytic barrel 31 and the first, second, third and fourth cracking barrels 41, 42, 43 and 44, and the purpose of providing the vane structure in the catalytic barrel 31 and the first, second, third and fourth cracking barrels 41, 42, 43 and 44 has been described above, and the present embodiment will not be further described in the drawings and text.

It should be understood that the present embodiment is provided with four pyrolysis barrels (the first pyrolysis barrel 41, the second pyrolysis barrel 42, the third pyrolysis barrel 43, and the fourth pyrolysis barrel 44) and is not intended to limit the present utility model, and the number of the solid treatment modules 4 and the pyrolysis barrels may be two, and any number of two or more. And when the feeding of the previous cracking barrel is finished and the cracking is carried out, the next cracking barrel is fed again, and the like, until the feeding of the last cracking barrel is finished, the first cracking barrel is basically cracked, the first cracking barrel can be fed again, the uninterrupted feeding of the multiple cracking barrels and the uninterrupted cracking are achieved, and the cracking efficiency can be effectively improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A parallel waste thermal cracking system, comprising:

the feeding module (1) is provided with a feeding heater, and the feeding heater is used for converting the phase of the entering material into a gas-liquid-solid tri-state;

a cracking furnace (2) connected with the feeding module (1), wherein the cracking furnace (2) is provided with a cracking heater for gasifying the entering liquid material;

a gas and liquid treatment module (3) connected with the cracking furnace (2), wherein the gas and liquid treatment module (3) is used for partially liquefying the entering gaseous materials;

a solids distributor (40) connected to the cracking furnace (2);

a plurality of solid processing modules (4) respectively connected with the solid material distributor (40), wherein each solid processing module (4) is provided with a solid heater, the solid material is at least partially sublimated by the solid heater, each solid processing module (4) is also respectively connected with the gas and liquid processing module (3), and the gas generated by sublimation in the solid processing module (4) enters the gas and liquid processing module (3);

valves are arranged between the solid material distributor (40) and each solid processing module (4), and at the same time, the solid material distributor (40) is communicated with only one solid processing module (4).

2. The parallel waste thermal cracking system according to claim 1, wherein the solid material distributor (40) is a box, and a conical boss (401) is arranged on the inner bottom surface of the solid material distributor (40);

a plurality of solid treatment modules (4) are connected with the solid material distributor (40), are arranged on the bottom surface of the solid material distributor (40) and are circumferentially distributed along the bottom edge of the conical boss (401).

3. The parallel waste thermal cracking system according to claim 1, wherein the gas and liquid treatment module (3) comprises a plurality of sets of condensers (34) and oil drums, and the gaseous material is stored in the oil drums after being liquefied by the condensers (34).

4. A parallel waste thermal cracking system according to claim 3, characterized in that the gas and liquid treatment module (3) further comprises:

a catalytic barrel (31) connected with the cracking furnace (2);

and the U-shaped elbow (33) is connected with the condenser (34).

5. The parallel waste thermal cracking system of claim 1 wherein said solids processing module (4) comprises a plurality of cracking drums, a plurality of said solids heaters being located on each of said cracking drums;

one end of each cracking barrel is connected to the solid material distributor (40), and the other end is connected to a cooling barrel (45).

6. Parallel waste thermal cracking system according to claim 5, characterized in that the bottom of the cracking barrel and/or the cooling barrel (45) is spherical.

7. The parallel waste thermal cracking system of claim 6 or 5 wherein said cracking drums comprise a first cracking drum (41), a second cracking drum (42), a third cracking drum (43) and a fourth cracking drum (44);

a first connecting pipe (411) is arranged on the first cracking barrel (41), a second connecting pipe (421) is arranged on the second cracking barrel (42), and the first connecting pipe (411) and the second connecting pipe (421) are connected to the gas and liquid treatment module (3) in parallel;

the third cracking barrel (43) is provided with a third connecting pipe (431), the fourth cracking barrel (44) is provided with a fourth connecting pipe (441), and the third connecting pipe (431) and the fourth connecting pipe (441) are connected to the gas and liquid treatment module (3) in parallel.

8. The parallel waste thermal cracking system according to claim 5, characterized in that the cracking furnace (2), the cracking barrel and the cooling barrel (45) are provided with blade mechanisms;

the blade mechanism comprises a hollow rotating shaft (518) and a lifting shaft (517) movably arranged in the rotating shaft (518), wherein the rotating shaft (518) is positioned in the cracking furnace (2), the ends of the cracking barrel and the cooling barrel (45) are connected with at least one blade, and the lifting shaft (517) is positioned in the cracking furnace (2), the ends of the cracking barrel and the cooling barrel (45) are connected with at least one rotary blade (531).

9. The parallel waste thermal cracking system according to claim 1, wherein the feeding module (1) comprises a feeding hopper (12), a feeding screw (11) connected with the feeding hopper (12), a driving motor (13) connected with the feeding screw (11) and a feeding sleeve (111) sleeved on the feeding screw (11), and the tail end of the feeding sleeve (111) is connected with the cracking furnace (2).

10. Parallel waste thermal cracking system according to claim 9, characterized in that the feed heater is arranged on the feed screw (11) and/or the feed sleeve (111), the heating temperature of which feed heater increases gradually along the feed direction;

and the radial dimension of the end of the feed sleeve (111) decreases gradually along the feed direction.