CN220393621U - Waste multi-parallel thermal cracking system - Google Patents

Abstract

The utility model relates to a multi-parallel thermal cracking system for waste, which comprises a feeding module, at least one single cracking system, at least one serial cracking system and at least one parallel cracking system, wherein the single cracking system, the at least one serial cracking system and the at least one parallel cracking system are connected with the feeding module in parallel through a first material distributor, materials are heated by a feeding heater of the feeding module and then are changed into gas-liquid-solid tri-states, the materials enter the single cracking system and/or the serial cracking system and/or the parallel cracking system through the first material distributor in a controlled manner, the single cracking system comprises a group of first gas processing modules and first solid processing modules, the serial cracking system comprises at least two groups of second gas and liquid processing modules and second solid processing modules which are connected in series, and the parallel cracking system comprises a third gas and liquid processing module and at least two third solid processing modules which are connected with the third gas and liquid processing modules in parallel, so that the cracking efficiency can be improved and the cracking can be more thoroughly realized.

Description

Waste multi-parallel thermal cracking system

Technical Field

The utility model relates to the field of waste treatment, in particular to a waste multi-parallel 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 embodiments of the present utility model aim to provide a multi-parallel thermal cracking system for waste materials, which can decompose waste materials efficiently and thoroughly.

The embodiment of the utility model provides a waste multi-parallel thermal cracking system, which comprises:

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

at least one single pyrolysis system connected to said first feed distributor, each said single pyrolysis system comprising a set of first gas and liquid treatment modules and a first solids treatment module;

at least one series cracking system connected to said first feed distributor, each said series cracking system comprising at least two sets of second gas and liquid treatment modules and second solids treatment modules, and each set of said second gas and liquid treatment modules and said second solids treatment modules being connected in series;

at least one parallel pyrolysis system connected to the first feed distributor, each of the parallel pyrolysis systems comprising a third gas and liquid treatment module and at least two third solid treatment modules connected in parallel with the third gas and liquid treatment module;

wherein at least one single cracking system, at least one serial cracking system and at least one parallel cracking system are connected in parallel through the first material distributor.

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 a preferred embodiment of the utility model, the single cracking system, the serial cracking system and the parallel cracking system each comprise a cracking furnace connected to the first feed distributor, the cracking furnace having a cracking heater for gasifying the incoming liquid feed.

According to a preferred embodiment of the present utility model, the first gas and liquid treatment module, the second gas and liquid treatment module and the third gas and liquid treatment module each comprise a plurality of sets of condensers and oil drums, and the gaseous material is liquefied by the condensers and stored in the oil drums.

According to a preferred embodiment of the present utility model, the first gas and liquid treatment module, the second gas and liquid treatment module and the third gas and liquid treatment module each further comprise:

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 present utility model, the first, second and third solid treatment modules each comprise:

at least one cracking barrel connected with the cracking furnace, wherein a solid heater is arranged on the cracking barrel and used for sublimating the entered solid material;

and at least one cooling barrel is connected with the cracking barrel, and a cooling device is arranged in each cooling barrel.

According to a preferred embodiment of the utility model, the first solid treatment module comprises a first cracking barrel and a second cracking barrel which are connected in sequence, the first cracking barrel is connected with the cracking furnace, the second cracking barrel is connected with the cooling barrel, and the solid heater is arranged on each of the first cracking barrel and the second cracking barrel;

the sublimated gaseous materials in the first cracking barrel enter the first gas and liquid treatment module through the cracking furnace, and the non-sublimated solid materials in the first cracking barrel enter the second cracking barrel from the bottom;

the sublimated gaseous materials in the second cracking barrel enter the first gas and liquid treatment module through the first cracking barrel and the cracking furnace, and the non-sublimated solid materials in the second cracking barrel enter the cooling barrel from the bottom;

the bottoms of the first cracking barrel, the second cracking barrel and the cooling barrel are spherical.

According to a preferred embodiment of the utility model, the serial cracking system comprises a second material distributor connected between the feeding module and the cracking furnace, wherein a valve assembly is arranged on the second material distributor, and only one discharge hole of the second material distributor is in an open state at the same time;

the second solid treatment module comprises a third cracking barrel and a fourth cracking barrel which are respectively connected with the cracking furnace, and the third cracking barrel and the fourth cracking barrel are respectively provided with the solid heater.

According to a preferred embodiment of the present utility model, the third solids processing module includes a fifth pyrolysis drum, a sixth pyrolysis drum, a seventh pyrolysis drum, and an eighth pyrolysis drum;

the fifth cracking barrel is provided with a first connecting pipe, the sixth cracking barrel is provided with a second connecting pipe, and the first connecting pipe and the second connecting pipe are connected to the third gas and liquid treatment module in parallel;

the seventh cracking barrel is provided with a third connecting pipe, the eighth cracking barrel is provided with a fourth connecting pipe, and the third connecting pipe and the fourth connecting pipe are connected to the third gas and liquid treatment module in parallel.

According to the multi-parallel thermal cracking system for the waste, disclosed by the embodiment of the utility model, the materials are heated by the feeding heater of the feeding module and then are changed into the gas-liquid-solid tri-state, and the materials enter the single cracking system and/or the serial cracking system and/or the parallel cracking system through the first material distributor, so that the cracking efficiency can be improved, and the cracking can be more thorough.

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 thermal cracking system with multiple parallel waste materials according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a single pyrolysis system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a serial pyrolysis system according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a parallel pyrolysis system according to an embodiment of the present utility model;

FIG. 5 is a schematic top view of four pyrolysis drums of a parallel pyrolysis system according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a solid material dispenser and a tapered boss according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a structure of a cracking furnace and blades according to an embodiment of the present utility model;

fig. 8 is a partial enlarged view of a portion a in fig. 4;

fig. 9 is a partial enlarged view of a portion B in fig. 4;

fig. 10 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.

FIG. 1 is a schematic diagram of a waste multi-parallel thermal cracking system according to an embodiment of the present utility model. The waste multi-parallel thermal cracking system comprises a feeding module 1, at least one single cracking system X, at least one serial cracking system Y and at least one parallel cracking system Z. The feeding module 1 has a feeding heater (not shown) and a first material distributor 15, the feeding heater changes the phase of the material fed into the feeding module into a gas-liquid-solid tri-state, and the first material distributor 15 is connected with all the single cracking system X, the serial cracking system Y and the parallel cracking system Z in parallel. It should be understood that in the present embodiment, the single pyrolysis system X, the serial pyrolysis system Y, and the parallel pyrolysis system Z are each described as one example, but this is not intended to limit the present embodiment, and the number of the single pyrolysis system X, the serial pyrolysis system Y, and the parallel pyrolysis system Z may be one or more and connected in parallel through the first material distributor 15.

In this embodiment, the material enters the feed module 1, after being heated by the feed heater, is phase-changed into a gas-liquid-solid tri-state, i.e. preliminary cracking, and enters the cracking system (single cracking system X and/or serial cracking system Y and/or parallel cracking system Z) under the control of the first material distributor 15. Preferably, a valve (not shown) is provided on the first material distributor 15, which valve can control the first material distributor 15 to open or close to any one or more of the cracking systems so that the feed module 1 can feed any one or more of the cracking systems simultaneously.

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 tapered in the feed direction, creating a pressure that makes it easier for the gas-liquid-solid three-phase feedstock to enter the first distributor 15.

As shown in fig. 2-4, in this embodiment, the single cracking system X, the serial cracking system Y, and the parallel cracking system Z each include a cracking furnace 2 connected to a first material distributor 15, the cracking furnace 2 having a cracking heater (not shown) for gasifying an incoming liquid material. The 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 first gas and liquid treatment module, the second gas and liquid treatment module and the third gas and liquid treatment module above together with the original gas materials, and the solid materials enter the first solid treatment module, the second solid treatment module and the third solid treatment module below downwards. 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.

As shown in fig. 2, a schematic structure of a single pyrolysis system according to an embodiment of the present utility model is shown, wherein the single pyrolysis system X comprises a first gas and liquid treatment module, and the first gas and liquid treatment module comprises an oil drum, a U-shaped elbow 33 and a catalytic drum 31. 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 the catalytic drum 31 and is used for catalyzing the entering gaseous materials.

Specifically, the catalytic barrel 31 is disposed at the front end of the first gas and liquid processing module, 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, 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 pyrolysis 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.

As shown in fig. 2, in the present embodiment, a compressor 37 is connected to the third oil drum 36, and the other side of the compressor 37 is connected to an air storage drum 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.

As shown in fig. 2, in this embodiment, the single pyrolysis system X further includes a first solid processing module, where the first solid processing module includes a first pyrolysis barrel 41, a second pyrolysis barrel 42, and a cooling barrel 49 that are sequentially connected, the first pyrolysis barrel 41 is connected to the pyrolysis furnace 2, a first valve 411 is disposed between the pyrolysis furnace 2 and the first pyrolysis barrel 41, a second valve 421 is disposed between the first pyrolysis barrel 41 and the second pyrolysis barrel 42, a third valve 422 is disposed between the second pyrolysis barrel 42 and the cooling barrel 49, an outlet of the cooling barrel 49 is provided with a discharge valve 491, and solid heaters, which may be infrared heaters or high-frequency heaters, are disposed on the first pyrolysis barrel 41 and the second pyrolysis barrel 42. It should be understood that the number of the pyrolysis barrels (the first pyrolysis barrel 41 and the second pyrolysis barrel 42) is not limited to the embodiment, and the number of the pyrolysis barrels may be one, or two or more.

In this embodiment, specifically, the solid material in the cracking furnace 2 enters the first cracking barrel 41 from below through the first valve 411, 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. Under the heating of the solid heater, a part of the solid material in the first cracking barrel 41 sublimates into a gaseous material, and the gaseous material enters the gas and liquid treatment module 3 through the first valve 411 and the cracking furnace 2 for treatment, and the non-sublimated solid material enters the second cracking barrel 42 from the bottom of the first cracking barrel 41 through the second valve 421. 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.

The second cracking barrel 42 has the same structure as the first cracking barrel 41, and after the solid material enters the second cracking barrel 42, the solid material approaches the spherical bottom of the second cracking barrel 42 under the rotation of the blades. At the same time, the solid material is partially sublimated by heating, the generated gaseous material enters the cracking furnace 2 through the second valve 421, the first cracking barrel 41 and the first valve 411 and is treated by the gas and liquid treatment module 3, and the bottom of the non-sublimated solid material second cracking barrel 42 enters the cooling barrel 49 through the third valve 422. Pressure and temperature sensors (not shown) are also provided on the second pyrolysis tub 42 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 this embodiment, the bottom of the cooling barrel 49 is also spherical, and the cooling barrel 49 is provided with a blade mechanism, which will be described later, and the solid material always moves toward the bottom center of the cooling barrel 49 by the rotation of the blade. The bottom of the cooling tub 49 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 49, so that the solid material entering the cooling tub 49 is further cooled. Because the temperature of the solid material is higher when the solid material enters the cooling channel 43 from the second cracking barrel 42, the solid material needs to be stirred by the blades and cooled by water, and after the solid material is cooled to normal temperature, the solid material enters the carbon storage tank 40 for storage through the discharge valve 491 at the bottom of the cooling barrel 49.

As shown in fig. 3, a schematic structural diagram of a serial pyrolysis system according to an embodiment of the present utility model is shown, where the serial pyrolysis system Y includes a second gas and liquid treatment module, which may be the same as the first gas and liquid treatment module of the single pyrolysis system X, and will not be described herein in detail. The serial cracking system Y further comprises a second solid treatment module, the second solid treatment module further comprises a third cracking barrel 43, a fourth cracking barrel 44 and a cooling barrel 49, the third cracking barrel 43 and the fourth cracking barrel 44 are connected with the cracking furnace 2, a fourth valve 431 is arranged between the third cracking barrel 43 and the cracking furnace 2, and a fifth valve 441 is arranged between the fourth cracking barrel 44 and the cracking furnace 2. The cooling barrel 49 is connected with the third cracking barrel 43 and the fourth cracking barrel 44, a sixth valve 432 is arranged between the cooling barrel 49 and the third cracking barrel 43, a seventh valve 442 is arranged between the cooling barrel 49 and the fourth cracking barrel 44, and a discharge valve 491 is arranged at the outlet of the cooling barrel 49. The third and fourth pyrolysis barrels 43 and 44 are provided with a solid heater, which may be an infrared heater or a high frequency heater.

It should be understood that the present embodiment is described by taking the serial pyrolysis system Y including two groups of the second gas and liquid processing modules and the second solid processing module as an example, but the present embodiment is not limited to this embodiment, and in other embodiments, the number of groups of the second gas and liquid processing modules and the second solid processing modules is greater than or equal to two.

In this embodiment, as shown in fig. 3, two cracking furnaces 2 are connected to the feeding module 1 through a second distributor 16, and a valve (not shown) may be provided on the second distributor 16, where the valve is used to control the second distributor 16 to feed any one or any multiple groups of second gas and liquid processing modules and second solid processing modules.

As shown in fig. 3, in the present embodiment, the solid material in the cracking furnace 2 enters the third cracking barrel 43 from below through the fourth valve 431 and/or enters the fourth cracking barrel 44 through the fifth valve 441, and vane mechanisms are provided in the third cracking barrel 43 and the fourth cracking barrel 44, and the specific structure of the vane mechanisms will be described later. Under the rotation of the blades, the solid material always moves to the bottoms of the third cracking barrel 43 and the fourth cracking barrel 44. The bottoms of the third and fourth pyrolysis drums 43 and 44 are formed in a spherical shape so that the solid material approaches the bottom. The solid materials in the third cracking barrel 43 and the fourth cracking barrel 44 are partially sublimated into gaseous materials under the heating of the solid heater, and enter the second gas and liquid treatment module for treatment through the fourth valve 431, the fifth valve 441 and the cracking furnace 2, and the non-sublimated solid materials enter the cooling barrel 49 from the bottoms of the third cracking barrel 43 and the fourth cracking barrel 44 through the sixth valve 432 and the seventh valve 442. Pressure and temperature sensors (not shown) are further provided on the third and fourth cracking drums 43 and 44 for sensing the pressures in the third and fourth cracking drums 43 and 44 to control the gas inlet amount, and sensing the temperatures in the third and fourth cracking drums 43 and 44 to control the heating temperature, respectively.

As shown in fig. 3, in this embodiment, the bottom of the cooling barrel 49 is also spherical, and the cooling barrel 49 is provided with a blade mechanism, which will be described later, and the solid material always moves toward the bottom center of the cooling barrel 49 by the rotation of the blade. The bottom of the cooling tub 49 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 49, so that the solid material entering the cooling tub 49 is further cooled. Because the solid materials have higher temperature when entering the cooling barrel 49 from the third cracking barrel 43 and the fourth cracking barrel 44, the solid materials need to be stirred by the blades and cooled by water, and after being cooled to normal temperature, the solid materials enter the carbon storage tank 40 for storage through the discharge valve 491 at the bottom of the cooling barrel 49.

As shown in fig. 4 and 5, in the present embodiment, the parallel pyrolysis system Z includes a third gas and liquid treatment module, which may be the same as the first gas and liquid treatment module of the single pyrolysis system X and the second gas and liquid treatment module of the serial pyrolysis system Y, and will not be repeated here. The parallel pyrolysis system Z further comprises a third solids processing module comprising a fifth pyrolysis drum 45, a sixth pyrolysis drum 46, a seventh pyrolysis drum 47, and an eighth pyrolysis drum 48 in an annular arrangement. And, one end of the fifth, sixth, seventh and eighth cracking barrels 45, 46, 47 and 48 is connected to the third material distributor 4a, and the other end is connected to the cooling barrel 49.

Valves are arranged between the third material distributor 4a and the fifth cracking barrel 45, the sixth cracking barrel 46, the seventh cracking barrel 47 and the eighth cracking barrel 48, and are respectively an eighth valve 452 between the third material distributor 4a and the fifth cracking barrel 45, a ninth valve 462 between the third material distributor 4a and the sixth cracking barrel 46, a tenth valve 472 between the third material distributor 4a and the seventh cracking barrel 47 and an eleventh valve 482 between the third material distributor 4a and the eighth cracking barrel 48. At the same time, only one of the eighth valve 452, the ninth valve 462, the tenth valve 472, and the eleventh valve 482 is in an open state, and the other is in a closed state. So that the third distributor 4a feeds only one pyrolysis drum at a time.

As shown in fig. 6, in the present embodiment, the third material distributor 4a is a box body, on the inner bottom surface of which a tapered boss 4c is provided, and each third solid processing module is connected to the third material distributor 4a through a pyrolysis barrel, specifically, the positions where the fifth pyrolysis barrel 45, the sixth pyrolysis barrel 46, the seventh pyrolysis barrel 47, and the eighth pyrolysis barrel 48 are connected to the third material distributor 4a are on the bottom surface of the third material distributor 4a and distributed along the bottom edge of the tapered boss 4c in the circumferential direction.

The conical boss 4c 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 third material distributor 4a from the distributor feed valve 4b above the third material distributor 4a, the solid material slides down along the side surface of the conical boss 4c, moves towards the bottom of the conical boss 4c, and enters the corresponding cracking barrel from the valve in an opened state among the eighth valve 452, the ninth valve 462, the tenth valve 472 and the eleventh valve 482.

As shown in fig. 4, in the present embodiment, a first connection pipe 451 is provided on the fifth cracking barrel 45, and the first connection pipe 451 is used for sending the gas in the fifth cracking barrel 45 to the catalytic barrel 31 of the gas and liquid processing module 3. Specifically, the solid material in the third material distributor 4a enters the fifth cracking barrel 45 from below through the eighth valve 452, and a vane mechanism is provided in the fifth cracking barrel 45, 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 fifth cracking barrel 45. The bottom of the fifth pyrolysis drum 45 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the fifth pyrolysis drum 45, which may be an infrared radiation heater or a high frequency heater. The solid material in the fifth cracking barrel 45 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 451, and the non-sublimated solid material enters the cooling barrel 49 from the bottom of the fifth cracking barrel 45 through the twelfth valve 453. The fifth pyrolysis tub 45 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the fifth pyrolysis tub 45 to control the gas inlet amount, and sensing the temperature in the fifth pyrolysis tub 45 to control the heating temperature, respectively.

As shown in fig. 4, in the present embodiment, a second connection pipe 461 is provided on the sixth cracking barrel 46, and the second connection pipe 461 is used for sending the gas in the sixth cracking barrel 46 to the catalytic barrel 31 of the gas and liquid processing module 3. Specifically, the solid material in the third material distributor 4a enters the sixth cracking barrel 46 from below through the ninth valve 462, and a vane mechanism is provided in the sixth cracking barrel 46, 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 towards the bottom of the sixth cracking barrel 46. The bottom of the sixth pyrolysis drum 46 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the sixth pyrolysis drum 46, which may be an infrared radiation heater or a high frequency heater. The solid material in the sixth cracking barrel 46 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 461, and the non-sublimated solid material enters the cooling barrel 49 from the bottom of the sixth cracking barrel 46 through the thirteenth valve 463. The sixth pyrolysis tank 46 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the sixth pyrolysis tank 46 to control the gas inlet amount, and sensing the temperature in the sixth pyrolysis tank 46 to control the heating temperature, respectively.

As shown in fig. 4, in the present embodiment, a third connection pipe 471 is provided on the seventh cracking barrel 47, and the third connection pipe 471 is used for feeding the gas in the seventh cracking barrel 47 into the catalytic barrel 31 of the gas and liquid processing module 3. Specifically, the solid material in the third material distributor 4a enters the seventh cracking barrel 47 from below through the tenth valve 472, and a vane mechanism is provided in the seventh cracking barrel 47, 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 seventh cracking barrel 47. The bottom of the seventh pyrolysis drum 47 is formed in a spherical shape so that the solid material approaches the bottom. A solid heater (not shown) is located on the seventh pyrolysis drum 47, which may be an infrared radiation heater or a high frequency heater. The solid material in the seventh cracking barrel 47 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid processing module 3 for processing through the third connecting pipe 471, and the non-sublimated solid material enters the cooling barrel 49 from the bottom of the seventh cracking barrel 47 through the fourteenth valve 473. The seventh pyrolysis drum 47 is further provided with pressure and temperature sensors (not shown) for sensing the pressure in the seventh pyrolysis drum 47 to control the gas inlet amount, and sensing the temperature in the seventh pyrolysis drum 47 to control the heating temperature, respectively.

As shown in fig. 4, in the present embodiment, a fourth connection pipe 481 is provided on the eighth cracking bucket 48, and the fourth connection pipe 481 is used to send the gas in the eighth cracking bucket 48 into the catalytic bucket 31 of the gas and liquid treatment module 3. Specifically, the solid material in the third material distributor 4a enters the eighth cracking barrel 48 from below through the eleventh valve 482, and a vane mechanism is provided in the eighth cracking barrel 48, and the specific structure of the vane mechanism will be described later. Under the rotation of the blades, the solid material is always moving towards the bottom of the eighth cracking drum 48. The bottom of the eighth pyrolysis drum 48 is formed in a spherical shape so that the solid material approaches the bottom. A solids heater (not shown) is located on the eighth pyrolysis drum 48, which may be an infrared radiation heater or a high frequency heater. The solid material in the eighth pyrolysis drum 48 is partially sublimated into gaseous material under the heating of the solid heater, and enters the gas and liquid treatment module 3 through the fourth connecting pipe 481 for treatment, and the non-sublimated solid material enters the cooling drum 49 from the bottom of the eighth pyrolysis drum 48 through the fifteenth valve 483. Pressure and temperature sensors (not shown) are also provided on the eighth pyrolysis drum 48 for sensing the pressure in the eighth pyrolysis drum 48 to control the gas inlet amount and sensing the temperature in the eighth pyrolysis drum 48 to control the heating temperature, respectively.

As shown in fig. 4, in the present embodiment, the first connection pipe 451 and the second connection pipe 461 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 471 and the fourth connection pipe 481 are connected in parallel to the catalytic bucket 31 of the gas and liquid treatment module 3 using the second three-way joint 452.

As shown in fig. 4, in the present embodiment, the solid material not sublimated in the fifth pyrolysis barrel 45, the sixth pyrolysis barrel 46, the seventh pyrolysis barrel 47, and the eighth pyrolysis barrel 48 enters the cooling barrel 49, the bottom of the cooling barrel 49 is also spherical, and the cooling barrel 49 is provided with a blade mechanism, which will be described later, and the solid material always moves toward the bottom center of the cooling barrel 49 under the rotation of the blade. The bottom of the cooling tub 49 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 49, so that the solid material entering the cooling tub 49 is further cooled. Because the solid materials enter the cooling barrel 49 from the fifth cracking barrel 45, the sixth cracking barrel 46, the seventh cracking barrel 47 and the eighth cracking barrel 48 at higher temperature, the solid materials need to be stirred by the blades and cooled by water, and after the solid materials are cooled to normal temperature, the solid materials enter the carbon storage tank 40 for storage through the discharge valve 47 at the bottom of the cooling barrel 49.

It should be understood that the parallel pyrolysis system Z of the present embodiment is provided with four pyrolysis barrels (the fifth pyrolysis barrel 45, the sixth pyrolysis barrel 46, the seventh pyrolysis barrel 47, and the eighth pyrolysis barrel 48) and is not intended to limit the present utility model, and the number of pyrolysis barrels of the third solid treatment module 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.

Fig. 7 to 10 are schematic cross-sectional views of the cracking furnace of the present embodiment. 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, fifth, sixth, seventh, and eighth cracking barrels 45, 46, 47, and 48, 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, fifth, sixth, seventh, and eighth cracking barrels 45, 46, 47, and 48 has been described above, and the present embodiment will not be further illustrated and described herein.

According to the multi-parallel thermal cracking system for the waste, disclosed by the embodiment of the utility model, the materials are heated by the feeding heater of the feeding module and then are changed into the gas-liquid-solid tri-state, and the materials enter the single cracking system and/or the serial cracking system and/or the parallel cracking system through the first material distributor, so that the cracking efficiency can be improved, and the cracking can be more thorough.

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 (8)

1. A multiple parallel thermal cracking system for waste, the multiple parallel thermal cracking system comprising:

a feed module (1) having a feed heater and a first feed distributor (15), the feed heater providing for phase change of incoming material into gas-liquid-solid tri-states;

at least one single pyrolysis system (X) connected to said first feed distributor (15), each said single pyrolysis system (X) comprising a set of first gas and liquid treatment modules and first solids treatment modules;

at least one series cracking system (Y) connected to said first feed distributor (15), each said series cracking system (Y) comprising at least two sets of second gas and liquid treatment modules and second solid treatment modules, and each set of said second gas and liquid treatment modules and said second solid treatment modules being connected in series;

at least one parallel cracking system (Z) connected to said first distributor (15), each said parallel cracking system (Z) comprising a third gas and liquid treatment module and at least two third solid treatment modules connected in parallel to said third gas and liquid treatment modules;

wherein at least one single cracking system (X), at least one serial cracking system (Y) and at least one parallel cracking system (Z) are connected in parallel through the first material distributor (15), and each of the single cracking system (X), the serial cracking system (Y) and the parallel cracking system (Z) comprises a cracking furnace (2) connected with the first material distributor (15);

the first, second, and third solids processing modules each include: at least one cracking barrel connected with the cracking furnace (2), wherein a solid heater is arranged on the cracking barrel and used for sublimating the entered solid material; at least one cooling barrel (49) connected with the cracking barrel, wherein a cooling device is arranged in each cooling barrel (49); the first solid treatment module comprises a first cracking barrel (41) and a second cracking barrel (42) which are sequentially connected, the first cracking barrel (41) is connected with the cracking furnace (2), the second cracking barrel (42) is connected with the cooling barrel (49), and the first cracking barrel (41) and the second cracking barrel (42) are both provided with the solid heater;

the sublimated gaseous materials in the first cracking barrel (41) enter the first gas and liquid treatment module through the cracking furnace (2), and the non-sublimated solid materials in the first cracking barrel (41) enter the second cracking barrel (42) from the bottom;

the sublimated gaseous materials in the second cracking barrel (42) enter the first gas and liquid treatment module through the first cracking barrel (41) and the cracking furnace (2), and the non-sublimated solid materials in the second cracking barrel (42) enter the cooling barrel (49) from the bottom;

wherein the bottoms of the first cracking barrel (41), the second cracking barrel (42) and the cooling barrel (49) are spherical.

2. The waste multi-parallel 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).

3. The thermal multi-parallel cracking system of waste material according to claim 2, characterized in that the feed heater is provided on the feed screw (11) and/or the feed sleeve (111), the heating temperature of the feed heater gradually increasing along the feed direction;

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

4. The waste multiple parallel thermal cracking system according to claim 1, characterized in that the cracking furnace (2) has a cracking heater for gasifying the incoming liquid material.

5. The multiple parallel thermal cracking system of claim 4 wherein said first, second and third gas and liquid treatment modules each comprise a plurality of sets of condensers (34) and oil drums, and gaseous materials are liquefied by said condensers (34) and stored in said oil drums.

6. The multiple parallel thermal cracking system of claim 5, wherein said first gas and liquid processing module, said second gas and liquid processing module, and said third gas and liquid processing module each further comprise:

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

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

7. The thermal multi-parallel cracking system for waste material according to claim 4, characterized in that said serial cracking system (Y) comprises a second material distributor (16) connected between said feeding module (1) and said cracking furnace (2), said second material distributor (16) being provided with a valve assembly, only one outlet of said second material distributor (16) being in an open state at the same time;

the second solid treatment module comprises a third cracking barrel (43) and a fourth cracking barrel (44) which are respectively connected with the cracking furnace (2), and the third cracking barrel (43) and the fourth cracking barrel (44) are respectively provided with the solid heater.

8. The multiple parallel thermal cracking system of claim 4 wherein said third solids processing module includes a fifth cracking barrel (45), a sixth cracking barrel (46), a seventh cracking barrel (47) and an eighth cracking barrel (48);

a first connecting pipe (451) is arranged on the fifth cracking barrel (45), a second connecting pipe (461) is arranged on the sixth cracking barrel (46), and the first connecting pipe (451) and the second connecting pipe (461) are connected to the third gas and liquid treatment module in parallel;

a third connecting pipe (471) is arranged on the seventh cracking barrel (47), a fourth connecting pipe (481) is arranged on the eighth cracking barrel (48), and the third connecting pipe (471) and the fourth connecting pipe (481) are connected to the third gas and liquid treatment module in parallel.