WO2022041371A1 - Pyrolysis treatment system and method - Google Patents

Abstract

Disclosed are a pyrolysis treatment system and method. The pyrolysis treatment system comprises a dryer, a pyrolysis reactor, a waste collection system, a heat supply system, a condensation and separation system, and a control system. The dryer is provided with a first feed port, a first discharge port, a first gas inlet, a first gas outlet, and a smoke outlet. The pyrolysis reactor is provided with a second feed port, a second discharge port, a second gas inlet, and a second gas outlet. The second feed port is in communication with the first discharge port. The waste collection system is in communication with the second discharge port. The heat supply system comprises a steam generator, a fuel gas generator, and a superheater. A gas outlet of the steam generator and a gas outlet of the fuel gas generator are both in communication with a gas inlet of the superheater. A gas outlet of the superheater is in communication with the second gas inlet of the pyrolysis reactor. According to the technical solution of the present invention, the heat supply is stable during an operation process of the system, solid waste is subjected to sufficient pyrolysis, and the energy utilization efficiency is high.

Description

A kind of cracking treatment system and method technical field

The invention relates to the field of solid waste treatment, in particular to a cracking treatment system and method.

Background technique

Solid wastes, such as meal waste, kitchen waste, medical waste, etc., cause great pollution to the environment, and many of them will cause persistent pollution to the environment for a long time. Thermal cracking is a relatively new technological trend in the application field of solid waste treatment technology. The solid waste is cracked at a high temperature (eg 600°C) in an oxygen-free or anoxic environment, and the cracked products are mainly gaseous cracked gas, liquid light oil, solid coke and carbon black.

After some existing cracking treatment systems are turned on, it takes a long time to generate superheated steam, and in the process of cracking reaction, the material properties of solid waste are complex, and the amount of cracked gas generated will change, resulting in the cracking of recycled materials. The unstable gas supply results in insufficient heating of the entire system, which in turn leads to insufficient pyrolysis of solid waste.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a cracking treatment system, which has stable heat supply during the operation of the system, sufficient cracking of solid waste, and high energy utilization efficiency.

A cracking treatment system according to an embodiment of the first aspect of the present invention includes a dryer, and the dryer is provided with a first feed port, a first discharge port, a first air inlet, a first air outlet and a smoke outlet port; cracking reactor, the cracking reactor is provided with a second inlet, a second outlet, a second inlet and a second outlet; the second inlet and the first outlet a waste collection system, the waste collection system communicates with the second outlet; a heating system, the heating system includes a steam generator, a gas generator and a superheater; the outlet of the steam generator The gas port and the gas outlet of the gas generator are both communicated with the air inlet of the superheater; the air outlet of the superheater is communicated with the second air inlet of the cracking reactor; the condensation separation system, the condensation The separation system is communicated with the first gas outlet and the smoke outlet respectively; the gas generator is connected with the condensation separation system, and the condensation separation system is used for condensing and separating the reacted mixed gas and separating the The latter cracked gas is supplied to a gas generator; and a control system is electrically connected to the dryer, the cracking reactor, the waste collection system, the heating system and the condensation separation system, respectively.

The above technical scheme has at least the following beneficial effects: the technical scheme of the embodiment of the first aspect of the present invention uses a steam generator and a gas generator to heat water to form superheated steam, and the superheated steam is further heated by the superheater to reach the temperature required for the cracking reaction. , and then pass the superheated steam heated to the temperature required by the cracking reaction into the cracking reactor for heating; the solid waste in the cracking reactor is thermally cracked; the solid products after the cracking of the solid waste (such as coke and carbon black, etc. ) is collected by the waste collection system; the gaseous products (such as cracked gas and gaseous light oil, etc.) after the cracking of solid waste are discharged into the dryer together with the superheated steam; the dryer uses the superheated steam, cracked gas and gaseous light oil. The waste heat of the mixed gas composed of oil preheats and dries the solid waste in the dryer, improves the thermal energy utilization efficiency and reduces energy consumption; the mixed gas is then discharged from the smoke outlet and the first air outlet of the dryer to the condensation separation system Condensation and separation are carried out; condensed water, cracked gas and liquid light oil are obtained after condensation and separation; the cracked gas is fed into the gas generator for combustion as fuel, and then the gas generator provides sufficient superheated steam to heat the cracking reactor . Since the steam generator is driven by electric energy, when the system is turned on, the steam generator is used to heat water to form superheated steam, which is fast and takes a short time; after the cracking reaction is stable, the generated cracked gas is used as fuel to match the gas generator. Combustion for heating to provide sufficient superheated steam, at this time, the steam generator can be turned off to save energy; because the amount of cracked gas in the system in the prior art is affected by the different contents of various components of the solid waste, there will be changes, resulting in unstable supply of superheated steam to the gas generator. In the technical solution of the embodiment of the present invention, the gas generator is used as the main heating device, and the steam generator is used as the auxiliary heating device to supply superheated steam. It can ensure the stable superheated steam environment of the system, and make the solid waste cracking more fully and more stable.

According to some embodiments of the present invention, the cracking treatment system further includes a circulating cooling system, and the circulating cooling system includes a circulating water tank and a circulating water pump; the circulating water tank is connected to the circulating water pump, and the circulating water tank is connected to the circulating water pump. Tap water is communicated with, and the circulating water tank is also communicated with the cracking reactor, the waste collection system and the condensation separation system respectively; the circulating water pump is respectively connected with the cracking reactor, the waste collection system and the The condensation separation system is communicated, and the circulating water pump is electrically connected with the control system.

According to some embodiments of the present invention, the dryer is provided with a first screw conveying mechanism; the first screw conveying mechanism is electrically connected to the control system; the cracking reactor further includes a second screw conveying mechanism, a steam a pipeline, a first shut-off fan, a second shut-off fan and a cooling and sealing device; the second screw conveying mechanism is electrically connected to the control system, and the second screw conveying mechanism and the steam pipeline are both located in the cracking reaction The steam pipe is communicated with the second air inlet, the steam pipe extends from one end of the cracking reactor to the other end of the cracking reactor, and the steam pipe is provided with several exhaust pipes The first shut-off fan and the second shut-off fan are both electrically connected to the control system; the first shut-off fan is connected to the second feed port; the second shut-off fan is connected to the control system. the cooling and sealing device is used for cooling the shaft end of the second screw conveying mechanism; the cooling and sealing device is provided with a first water inlet and a first water outlet; the first water inlet is communicated with the circulating water pump; the first water outlet is communicated with the circulating water tank.

According to some embodiments of the present invention, the waste collection system includes a cooling screw conveyor and a receiving bucket; the feeding port of the cooling screw conveyor communicates with the second discharging port, and the cooling screw conveyor The discharge port is connected with the receiving barrel, the water inlet of the cooling screw conveyor is connected with the circulating water pump, the water outlet of the cooling screw conveyor is connected with the circulating water tank, and the cooling screw conveyor is connected with the circulating water tank. It is electrically connected with the control system; the receiving barrel is used for collecting the waste after the cracking reaction.

According to some embodiments of the present invention, the condensation separation system includes a condenser, a three-phase separator and an induced draft fan; an air inlet of the condenser communicates with the first air outlet, and a material outlet of the condenser It is communicated with the feed port of the three-phase separator, the liquid inlet of the condenser is communicated with the circulating water pump, the liquid outlet of the condenser is communicated with the circulating water tank; the smoke outlet is communicated with the circulating water tank. The three-phase separator is in communication; the three-phase separator is used for the three-phase separation of water, oil and gas for the condensed mixture and the flue gas; the air inlet of the induced draft fan is connected to the air inlet of the three-phase separator. The air outlet is connected, the air outlet of the induced draft fan is connected with the air inlet of the gas generator, the water inlet of the induced draft fan is connected with the circulating water pump, and the water outlet of the induced draft fan is connected with the circulating water tank The condenser, the three-phase separator and the induced draft fan are all electrically connected to the control system, respectively.

According to some embodiments of the present invention, the condensation separation system further includes a cyclone dust collector and a steam washing tank; an air inlet of the cyclone dust collector is connected to the second air outlet, and an air outlet of the cyclone dust collector is connected to the second air outlet. The first air inlet is connected; the steam washing tank is communicated with tap water, and the steam washing tank is communicated with the air outlet of the induced draft fan.

According to some embodiments of the present invention, the heating system further includes a gas tank and a vaporizer; the gas tank contains liquefied petroleum gas, and the gas tank is connected to the vaporizer; the vaporizer is used for the vaporizer the liquefied petroleum gas, and the vaporizer is connected to the gas generator.

According to some embodiments of the present invention, the cracking reaction system further includes a soft water treatment device; the soft water treatment device includes a water inlet buffer tank, an inlet water pump, a soft water filter and a salt tank; the water inlet of the water inlet buffer tank is connected to The tap water is communicated, the water outlet of the water inlet buffer tank is communicated with the water inlet of the inlet pump; the water inlet of the soft water filter is communicated with the water outlet of the inlet pump; the water inlet of the steam generator is connected to the gas inlet The water inlet of the generator is connected with the water outlet of the soft water filter; the salt tank is connected with the soft water filter.

According to some embodiments of the present invention, the cracking reaction system further includes a feeding device and a pretreatment system; the feeding device is communicated with the first feeding port, and the feeding device is used for feeding the dryer feeding; the pretreatment system includes a trash can elevator, an integrated crushing and pressing machine and a feeding screw conveyor; the trash can elevator is used to transport solid waste to the integrated crushing and pressing machine; the crushing and pressing The integrated machine is connected to the feeding port of the feeding screw conveyor, and the integrated crushing and pressing machine is used for crushing and squeezing the solid waste and conveying the solid waste to the feeding screw conveyor; the feeding The discharge port of the screw conveyor is connected with the feeding device.

A kind of cracking treatment method according to the second aspect of the present invention, comprises the following steps:

The steam generator heats water to form first superheated steam, and passes the first superheated steam into the superheater;

The superheater further heats the first superheated steam to obtain the second superheated steam, and the second superheated steam can reach the temperature required for the cracking reaction;

Passing the second superheated steam into the cracking reactor, and the second superheated steam deoxidizes and supplies heat to the cracking reactor;

Passing the second superheated steam in the cracking reactor into the dryer, and the second superheated steam deoxidizes and preheats the dryer;

transporting the solid waste into the dryer for drying and preheating to obtain dry solid waste;

The dry solid waste is transported to the cracking reactor for cracking reaction to obtain solid product and gaseous product;

conveying the solid product to a waste collection system for collection;

Passing the mixed gas of the gaseous product and the second superheated steam into a condensation separation system for condensation and separation to obtain liquid light oil, cracked gas and condensed water;

The cracked gas is sent to a gas generator for combustion as fuel, so that the gas generator heats water to form the first superheated steam, and the gas generator sends the first superheated steam to the superheater.

The above technical scheme has at least the following beneficial effects: the second aspect of the present invention also proposes a cracking treatment method, firstly heating water with a steam generator to form superheated steam, the superheated steam is formed quickly and takes a short time; after the cracking reaction is stabilized, the generation The pyrolysis gas is used as fuel to cooperate with the gas generator for combustion and heating to provide sufficient superheated steam. At this time, the gas generator is used as the main heating equipment to supply superheated steam, and the steam generator is used as the auxiliary heating equipment to supply superheated steam. Steam can ensure a stable superheated steam environment in the system, making the solid waste cracking more fully and more stable.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a process flow diagram of a cracking treatment system according to an embodiment of the present invention;

2 is a process flow diagram of a circulating cooling system according to an embodiment of the present invention;

3 is a schematic structural diagram of a cracking reactor according to an embodiment of the present invention;

4 is a process flow diagram of a soft water treatment device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a preprocessing system according to an embodiment of the present invention.

Reference number:

Feeding device 100, dryer 200, first inlet 210, first outlet 220, first inlet 230, first outlet 240, smoke outlet 250, first screw conveying mechanism 260, cracking reaction 300, the second feed port 310, the second discharge port 320, the second air inlet 330, the second air outlet 340, the second screw conveying mechanism 350, the steam pipe 360, the exhaust hole 361, the first fan 370, the second closing fan 380, the cooling sealing device 390, the first water inlet 391, the first water outlet 392, the cooling screw conveyor 400, the receiving bucket 500, the circulating water tank 610, the circulating water pump 620, the steam generator 1100, Gas generator 1200, superheater 1300, gas tank 1400, vaporizer 1500, condenser 2100, three-phase separator 2200, induced draft fan 2300, cyclone dust collector 2400, steam washing tank 2500, inlet buffer tank 3100, inlet water pump 3200 , Soft water filter 3300, salt box 3400, trash can elevator 4100, crushing and pressing machine 4200, feeding screw conveyor 4300.

detailed description

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or positional relationship indicated by up, down, front, rear, etc., is based on the azimuth or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention. The invention and simplified description do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

1, a cracking treatment system according to the first aspect of the embodiment of the present invention includes a dryer 200, and the dryer 200 is provided with a first feed port 210, a first discharge port 220, a first air inlet 230, the first air outlet 240 and the smoke outlet 250;

The cracking reactor 300, the cracking reactor 300 is provided with a second inlet port 310, a second outlet port 320, a second inlet port 330 and a second outlet port 340; the second inlet port 310 and the first outlet port 220 Connected;

a waste collection system, the waste collection system communicates with the second outlet 320;

Heating system, the heating system includes a steam generator 1100, a gas generator 1200 and a superheater 1300; the air outlet of the steam generator 1100 and the air outlet of the gas generator 1200 are both communicated with the air inlet of the superheater 1300; the superheater The gas outlet of 1300 is communicated with the second gas inlet 330 of the cracking reactor 300;

Condensation separation system, the condensation separation system is communicated with the first gas outlet 240 and the smoke outlet 250 respectively; the gas generator 1200 is connected with the condensation separation system, and the condensation separation system is used for condensing and separating the reacted mixed gas and separating the separated gas. The cracked gas is supplied to the gas generator;

The control system is electrically connected with the dryer 200, the cracking reactor 300, the waste collection system, the heating system and the condensation separation system, respectively.

Specifically, when the system is turned on, the superheated steam is mainly supplied by the steam generator 1100. Since the steam generator 1100 is driven by electricity, the superheated steam is formed quickly and takes a short time; the steam generator 1100 supplies the superheated steam, and then the superheater 1300 further heat the superheated steam to the temperature required for the cracking reaction (for example, 600° C.); and then pass the superheated steam into the cracking reactor 300 for deoxygenation treatment and heat supply, so as to maintain a stable superheated steam environment in the cracking reactor 300 and oxygen-free environment; the superheated steam in the cracking reactor 300 is discharged into the dryer 200 through the second air outlet 340, and the waste heat of the superheated steam is used to preheat the dryer 200 to improve the heat energy utilization efficiency.

Further, the solid waste enters the dryer 200 from the first feeding port 210, is preheated and dried in the dryer 200, and then is transported to the cracking reactor 300 for cracking. The products of solid waste cracking mainly include solid products (such as coke and carbon black, etc.) and gaseous products (such as cracked gas and gaseous light oil, etc.). The cracked solid products (such as coke and carbon black) are sent to the waste collection system and collected by the waste collection system; the cracked gaseous products (such as cracked gas and gaseous light oil, etc.) are discharged to the dryer together with superheated steam 200; the dryer 200 uses the waste heat of the mixed gas composed of superheated steam, cracked gas and gaseous light oil to preheat and dry the solid waste in the dryer 200, so as to improve the thermal energy utilization efficiency and reduce energy consumption; the mixed gas Then, it is discharged from the smoke outlet 250 and the first air outlet 240 of the dryer 200 to the condensation separation system for condensation and separation; after the mixed gas is condensed and separated, condensed water, cracked gas and liquid light oil are obtained; The gas generator 1200 is used as fuel.

Further, after the cracking reaction is stabilized, the generated cracked gas is burned as fuel to supply heat to the gas generator 1200, and the water heated by the gas generator 1200 provides sufficient superheated steam. At this time, the steam generator 1100 can be turned off to save energy consumption. ; Since the amount of cracked gas will change due to the different contents of various components of solid waste during the use of the system, the amount of cracked gas generated by the cracking reaction is sometimes more or less, and the pyrolysis gas is unstable in combustion in the gas generator 1200, As a result, the supply of superheated steam to the gas generator 1200 is unstable. At this time, the steam generator 1100 serves as an auxiliary device to supply superheated steam to ensure a stable superheated steam environment for the system, and to make solid waste cracking more sufficient and stable.

1 and 2, in some embodiments, the cracking treatment system further includes a circulating cooling system, and the circulating cooling system includes a circulating water tank 610 and a circulating water pump 620; the circulating water tank 610 is connected to the circulating water pump 620, and the circulating water tank 610 is connected to The tap water is communicated, and the circulating water tank 610 is also communicated with the cracking reactor 300, the waste collection system and the condensation separation system, respectively; connect.

Specifically, through the circulation cooling system, the cracking reactor 300, the waste collection system and the condensation separation system are respectively connected, so that the cracking reactor 300, the waste collection system and the condensation separation system are kept within an appropriate temperature range under all working conditions, Ensure the stable operation of the equipment.

1 and 3 , in some embodiments, the dryer 200 is provided with a first screw conveying mechanism 260 ; the first screw conveying mechanism 260 is electrically connected to the control system; the cracking reactor 300 further includes a second screw conveying mechanism 350 , steam pipeline 360, first closing fan 370, second closing fan 380 and cooling sealing device 390; the second screw conveying mechanism 350 is electrically connected with the control system, and the second screw conveying mechanism 350 and the steam pipeline 360 are both located in the cracking reactor Inside; the steam pipe 360 is communicated with the second air inlet 330, the steam pipe 360 extends from one end of the cracking reactor 300 to the other end of the cracking reactor 300, and the steam pipe 360 is provided with several exhaust holes 361; The fan 370 and the second closing fan 380 are electrically connected to the control system respectively; the first closing fan 370 is connected to the second feeding port 310; the second closing fan 380 is connected to the second discharging port 320; the cooling and sealing device 390 is used for The shaft end of the second screw conveying mechanism 350 is cooled; the cooling sealing device is provided with a first water inlet 391 and a first water outlet 392; the first water inlet 391 is communicated with the circulating water pump 620; the first water outlet 392 is communicated with the circulating water tank 610 .

Specifically, by arranging the first screw conveying mechanism 260, the solid waste can be continuously conveyed in the dryer 200, and the solid waste is transported under the rotation of the first screw conveying mechanism 260 and fully contacted with the superheated steam with residual heat, Thereby fully preheating and drying. By setting the second screw conveying mechanism 350, the solid waste can be continuously conveyed in the pyrolysis reactor 300, and the solid waste is transported and fully contacted with superheated steam under the rotation of the second screw conveying mechanism 350, thereby fully cracking.

Further, the cracking reactor 300 is also provided with a steam pipe 360 to communicate with the second air inlet 330. The steam pipe 360 extends from one end of the cracking reactor 300 to the other end of the cracking reactor 300. The steam pipe 360 is provided with several The superheated steam enters the steam pipe 360 from the second air inlet 330, and is discharged into the cracking reactor 300 from several exhaust holes 361 on the steam pipe 360, and the superheated steam is distributed in the cracking reactor 300. Evenly, the solid waste is heated more fully, which is conducive to the full cracking of the solid waste.

Furthermore, using the first shut-off fan 370 can continuously and uniformly supply material to the cracking reactor 300, and can also prevent the superheated steam in the cracking reactor 300 from overflowing from the second feeding port 310, and the second shut-off fan 380 can be used. The solid products (such as coke and carbon black, etc.) generated by the cracking reaction are continuously and uniformly transported to the waste collection system. The first screw conveying mechanism 260 and the second screw conveying mechanism 350 are combined with the first closing fan 370 and the second closing fan 380, so that the solid waste can be continuously supplied, and the cracking reaction can be carried out continuously.

1 , in some embodiments, the waste collection system includes a cooling screw conveyor 400 and a receiving bucket 500; the inlet of the cooling screw conveyor 400 communicates with the second outlet 320, and the outlet of the cooling screw conveyor 400 The material port is connected with the receiving bucket 500, the water inlet of the cooling screw conveyor 400 is connected with the circulating water pump 620, the water outlet of the cooling screw conveyor 400 is connected with the circulating water tank 610, and the cooling screw conveyor 400 is electrically connected with the control system; The barrel 500 is used to collect the waste after the cracking reaction.

Specifically, due to the high temperature of the solid products (such as coke and carbon black) generated by cracking, the cooling screw conveyor 400 is used to transport them to the receiving barrel 500 for collection. The cooling of the system can effectively reduce the temperature of solid products (such as coke and carbon black, etc.). But it is not limited to this, and different equipment can be selected to collect waste according to the actual process needs.

1, in some embodiments, the condensation separation system includes a condenser 2100, a three-phase separator 2200 and an induced draft fan 2300; the air inlet of the condenser 2100 communicates with the first air outlet 240, and the material outlet of the condenser 2100 It is communicated with the feed port of the three-phase separator 2200, the liquid inlet of the condenser 2100 is communicated with the circulating water pump 620, the liquid outlet of the condenser 2100 is communicated with the circulating water tank 610, and the smoke outlet 250 is communicated with the three-phase separator 2200. The three-phase separator 2200 is used for the three-phase separation of water, oil and gas on the condensed mixture and flue gas; the air inlet of the induced draft fan 2300 is connected with the air outlet of the three-phase separator 2200, and the outlet The air port is connected with the air inlet of the gas generator 1200, the water inlet of the induced draft fan 2300 is connected with the circulating water pump 620, and the water outlet of the induced draft fan 2300 is connected with the circulating water tank 610; the condenser 2100, the three-phase separator 2200 and the induced draft fan 2300 They are all electrically connected to the control system respectively.

Specifically, the gaseous product after cracking is mainly cracked gas, and the liquid product after cracking is mainly light oil. Due to the high temperature of the cracking reaction (for example, 600° C.), the light oil is vaporized; the gaseous cracked gas and gaseous light oil are The superheated steam enters the dryer 200 from the cracking reactor 300, is discharged from the first air outlet 240 of the dryer 200, and enters the condenser 2100 for condensation. Further, the condensed product is passed into the three-phase separation process. The generator 2200 performs three-phase separation of water, oil and gas, and separates condensed water, liquid light oil and cracked gas; the separated cracked gas is passed into the gas generator 1200 for use as fuel. The induced draft fan 2300 is connected with the circulating cooling system, so that the induced draft fan 2300 can be kept within an appropriate temperature range under all working conditions, so as to ensure the stable operation of the pneumatic conveying.

1, in some embodiments, the condensation separation system further includes a cyclone 2400 and a steam washing tank 2500; the air inlet of the cyclone 2400 is connected to the second air outlet 340, and the air outlet of the cyclone 2400 is connected to the second air outlet 340. An air inlet 230 is connected; the steam washing tank 2500 is communicated with tap water, and the steam washing tank 2500 is communicated with the air outlet of the induced draft fan 2300 .

Specifically, the gaseous cracked gas and gaseous light oil enter the dryer 200 from the cracking reactor 300 with the superheated steam, and a part of the dust will be taken away and enter the dryer 200 , and pass through the second outlet of the cracking reactor 300. A cyclone 2400 is arranged between the air port 340 and the first air inlet 230 of the dryer 200 to collect dust and prevent the dust from entering the dryer 200 and affecting the dryer 200 .

Further, in some embodiments, the cracked gas output is sufficient, and the cracked gas is passed into the gas generator 1200 for combustion and utilization as fuel to reduce energy consumption, and the burned gas is passed into the steam washing tank 2500 for steam washing and then discharged, Reduce environmental pollution; when the output of cracked gas is insufficient, the combustion of the cracked gas in the gas generator 1200 is unstable, resulting in unstable supply of superheated steam in the gas generator 1200. The cracked gas can be passed into the steam washing tank 2500 after steam cleaning. The superheated steam is provided by the steam generator 1100 to ensure a stable superheated steam environment of the system.

1, in some embodiments, the heating system further includes a gas tank 1400 and a vaporizer 1500; the gas tank 1400 contains liquefied petroleum gas, and the gas tank 1400 is connected to the vaporizer 1500; the vaporizer 1500 is used for vaporizing the liquefied petroleum gas , the vaporizer 1500 is connected to the gas generator 1200 .

Specifically, since the amount of cracked gas will change during the use of the system due to the different contents of various components of the solid waste, the amount of cracked gas produced by the cracking reaction is sometimes more or less, and the cracked gas will not burn in the gas generator 1200. In this embodiment, the gas tank 1400 is used to provide liquefied petroleum gas to the gas generator 1200 to stabilize the fuel supply, thereby stabilizing the superheated supply and ensuring a stable superheated steam environment for the system.

Further, since the natural vaporization of the liquefied petroleum gas in the gas tank 1400 is easily affected by the external temperature and dosage, a large amount of heat is absorbed during the vaporization of the liquefied petroleum gas, causing the surface of the gas tank 1400 to freeze, resulting in insufficient firepower and unstable pressure. In some embodiments, the vaporizer 1500 is used to vaporize the liquefied petroleum gas in the gas tank 1400 to stabilize the pressure, stabilize the fuel supply to the gas generator 1200, and prevent the gas tank 1400 from freezing.

1 and 4 , in some embodiments, the cracking reaction system further includes a soft water treatment device; the soft water treatment device includes a water inlet buffer tank 3100, an inlet water pump 3200, a soft water filter 3300 and a salt tank 3400; the water inlet buffer tank 3100 The water inlet of the water inlet is communicated with tap water, the water outlet of the water inlet buffer tank 3100 is communicated with the water inlet of the inlet water pump 3200; the water inlet of the soft water filter 3300 is communicated with the water outlet of the inlet water pump 3200; the water inlet of the steam generator 1100 and the gas generator The water inlet of the filter 1200 is connected with the water outlet of the soft water filter 3300; the salt tank 3400 is connected with the soft water filter 3300.

Specifically, the soft water is obtained by processing the soft water treatment device, and then the soft water is supplied to the steam generator 1100 and the gas generator 1200, and the soft water is heated by the steam generator 1100 and the gas generator 1200 to form superheated steam. Using soft water for heating can reduce the accumulation of scale in the steam generator 1100 and the gas generator 1200 and reduce clogging, thereby improving thermal efficiency and reducing energy consumption.

1 and 5 , in some embodiments, the cracking reaction system further includes a feeding device 100 and a pretreatment system; the feeding device 100 is communicated with the first feeding port 210 , and the feeding device is used to supply the dryer 200 The pretreatment system includes a trash can elevator 4100, an integrated crushing and pressing machine 4200 and a feeding screw conveyor 4300; the trash can elevator 4100 is used to transport solid waste to the integrated crushing and pressing machine 4200; the integrated crushing and pressing machine 4200 Connected with the feeding port of the feeding screw conveyor 4300, the integrated crushing and pressing machine 4200 is used for crushing and squeezing the solid waste and conveying the solid waste to the feeding screw conveyor 4300; the discharge port of the feeding screw conveyor 4300 Connect to the feeding device 100 .

Specifically, the solid waste is supplied to the dryer 200 by the feeding device 100; generally, the feeding device 100 is a screw conveyor, a rotary unloader, etc., but is not limited to this, and can be selected according to actual conditions.

Further, after the solid waste such as domestic waste is collected, it is transported to the integrated crushing and pressing machine 4200 by the trash can elevator 4100 for crushing and pressing, and the solid waste is pretreated; The feeding device 100 is then fed into the dryer 200 by the feeding device 100 . The cracking treatment system in this embodiment can complete the feeding of solid waste on the ground, pre-treat the solid waste by the integrated crushing and pressing machine 4200, and transport the solid waste by the feeding screw conveyor 4300 to the feeding device 100, and then The cracking reaction is completed through the dryer 200 and the cracking reactor 300 from top to bottom, and finally the waste is collected by the waste collection system. The overall system has a compact structure and takes up less space.

1, according to the second aspect of the embodiment of the present invention, a cracking treatment method is provided, comprising the following steps:

The steam generator 1100 heats the water to form the first superheated steam, and passes the first superheated steam into the superheater 1300;

The superheater 1300 further heats the first superheated steam to obtain the second superheated steam, and the second superheated steam can reach the temperature required for the cracking reaction (for example, 600° C.);

Passing the second superheated steam into the cracking reactor 300, and the second superheated steam deoxidizes and supplies heat to the cracking reactor 300;

Passing the second superheated steam in the cracking reactor 300 into the dryer 200, and the second superheated steam deoxidizes and preheats the dryer 200;

The solid waste is transported to the dryer 200 for drying and preheating to obtain dry solid waste;

The dry solid waste is transported to the cracking reactor 300 for cracking reaction to obtain solid products and gaseous products;

The solid product is transported to the waste collection system for collection;

Passing the mixed gas of the gaseous product and the second superheated steam into the condensation separation system for condensation and separation to obtain liquid light oil, cracked gas and condensed water;

The cracked gas is sent to the gas generator 1200 as fuel for combustion, so that the gas generator 1200 heats water to form first superheated steam, and the gas generator 1200 sends the first superheated steam to the superheater 1300 .

Specifically, the steam generator 1100 and the gas generator 1200 are used to heat water to form superheated steam, the superheated steam is further heated by the superheater 1300 to reach the temperature required for the cracking reaction, and then the superheated steam is passed into the cracking reactor 300 for hot. The solid waste in the cracking reactor 300 is thermally cracked; the solid products (such as coke and carbon black, etc.) after the cracking of the solid waste are collected by the waste collection system; the gaseous products after the cracking of the solid waste (such as cracked gas and gaseous light (oil, etc.) are discharged into the dryer 200 along with the superheated steam; the dryer 200 preheats and dries the solid waste in the dryer 200 by using the waste heat of the mixed gas composed of superheated steam, cracked gas and gaseous light oil , improve thermal energy utilization efficiency and reduce energy consumption; the mixed gas is then discharged from the smoke outlet and the first gas outlet of the dryer 200 to the condensation separation system for condensation and separation; after condensation and separation, condensed water, cracked gas and liquid light are obtained. oil; the cracked gas is fed into the gas generator 1200 for combustion as fuel, and then the gas generator 1200 provides sufficient superheated steam to supply heat to the cracking reactor 300 .

Further, when the system is turned on, since the steam generator 1100 is driven by electric energy, the steam generator 1100 is used to heat water to form superheated steam, and the superheated steam is formed quickly and takes a short time; after the cracking reaction is stable, the generated cracked gas is used as fuel. In conjunction with the combustion of the gas generator 1200 to provide sufficient superheated steam, the steam generator 1100 can be turned off at this time to save energy consumption.

In some embodiments, the cracking treatment method further includes that when the output of cracked gas is insufficient, the steam generator 1100 heats water to form first superheated steam, and passes the first superheated steam into the superheater 1300; when the output of cracked gas is sufficient , the cracked gas is sent to the gas generator 1200 for combustion as fuel, so that the gas generator 1200 heats water to form first superheated steam, and the gas generator 1200 sends the first superheated steam to the superheater 1300 .

Specifically, since the amount of cracked gas will vary due to the different contents of various components of solid waste during the use of the system, the supply of superheated steam to the gas generator 1200 is unstable, and the steam generator 1100 is used as auxiliary heating at this time. The supply of superheated steam to the equipment can ensure a stable superheated steam environment in the system, making the solid waste pyrolysis more sufficient and more stable.

The following describes in detail a cracking treatment system and method according to the present invention with a specific embodiment with reference to FIG. 1 . It is to be understood that the following description is merely illustrative and not specific to the limitation of the present invention.

As shown in FIG. 1 , in conjunction with FIGS. 2 to 5 , a cracking treatment system according to an embodiment of the present invention includes a trash can elevator 4100 , an integrated crushing and pressing machine 4200 , a feeding screw conveyor 4300 , a feeding device 100 , a drying 200, cracking reactor 300, cooling screw conveyor 400, receiving barrel 500, circulating water tank 610, circulating water pump 620, steam generator 1100, gas generator 1200, superheater 1300, gas tank 1400, vaporizer 1500, Condenser 2100, three-phase separator 2200, induced draft fan 2300, cyclone dust collector 2400, steam washing tank 2500, inlet water buffer tank 3100, inlet water pump 3200, soft water filter 3300, salt tank 3400 and control system.

The control system is respectively connected with the trash can elevator 4100, the crushing and pressing integrated machine 4200, the feeding screw conveyor 4300, the feeding device 100, the dryer 200, the cracking reactor 300, the cooling screw conveyor 400, the circulating water pump 620, and the steam generator. 1100, gas generator 1200, superheater 1300, gas tank 1400, vaporization furnace 1500, condenser 2100, three-phase separator 2200, induced draft fan 2300, inlet pump 3200 and soft water filter 3300 are electrically connected.

The circulating cooling system includes a circulating water tank 610 and a circulating water pump 620; the circulating water tank 610 is connected to the circulating water pump 620, and the circulating water tank 610 is communicated with tap water.

The trash can elevator 4100 is used to transport the solid waste to the integrated crushing and pressing machine 4200; the integrated crushing and pressing machine 4200 is connected to the feeding port of the feeding screw conveyor 4300, and the integrated crushing and pressing machine 4200 is used to crush the solid waste. and pressing and conveying the solid waste to the feeding screw conveyor 4300; the discharge port of the feeding screw conveyor 4300 is connected to the feeding device 100.

The feeding device 100 is communicated with the first feeding port 210 , and the feeding device is used for feeding the dryer 200 .

The dryer 200 is provided with a first feeding port 210 , a first discharging port 220 , a first air inlet 230 , a first air outlet 240 and a smoke outlet 250 , and a first screw conveying mechanism 260 is arranged in the dryer 200 .

The cracking reactor 300, the cracking reactor 300 is provided with a second inlet port 310, a second outlet port 320, a second inlet port 330, a second outlet port 340, a second screw conveying mechanism 350, a steam pipeline 360, a first A closing fan 370, a second closing fan 380 and a cooling and sealing device 390; the second inlet 310 communicates with the first outlet 220; the steam pipe 360 communicates with the second inlet 330, and the steam pipe 360 is connected from the cracking reactor One end of the 300 extends to the other end of the cracking reactor 300, and the steam pipe 360 is provided with several exhaust holes 361; the first closing fan 370 is connected with the second feeding port 310; the second closing fan 380 is connected with the second discharging The cooling sealing device 390 is used to cool the shaft end of the second screw conveying mechanism 350; the cooling sealing device is provided with a first water inlet 391 and a first water outlet 392, and the first water inlet 391 is communicated with the circulating water pump 620; A water outlet 392 communicates with the circulating water tank 610 .

The gas outlet of the steam generator 1100 and the gas outlet of the gas generator 1200 are both communicated with the air inlet of the superheater 1300; the air outlet of the superheater 1300 is communicated with the second air inlet 330 of the cracking reactor 300; the gas tank 1400 is equipped with There is liquefied petroleum gas, the gas tank 1400 is connected with the vaporizer 1500 ; the vaporizer 1500 is used for vaporizing the liquefied petroleum gas, and the vaporizer 1500 is connected with the gas generator 1200 .

The air inlet of the condenser 2100 is communicated with the first air outlet 240, the outlet of the condenser 2100 is communicated with the feed inlet of the three-phase separator 2200, the liquid inlet of the condenser 2100 is communicated with the circulating water pump 620, and the condenser 2100 The liquid outlet is communicated with the circulating water tank 610; the smoke outlet 250 is communicated with the three-phase separator 2200; the three-phase separator 2200 is used for the three-phase separation of water, oil and gas on the condensed mixture and flue gas; The air inlet of the fan 2300 is connected to the air outlet of the three-phase separator 2200, the air outlet of the induced draft fan 2300 is connected to the air inlet of the gas generator 1200, the water inlet of the induced draft fan 2300 is connected to the circulating water pump 620, and the The water outlet is connected with the circulating water tank 610; the air inlet of the cyclone 2400 is connected with the second air outlet 340, and the air outlet of the cyclone 2400 is connected with the first air inlet 230; the steam washing tank 2500 is communicated with tap water, and the steam The washing tank 2500 communicates with the air outlet of the induced draft fan 2300 .

The water inlet of the water inlet buffer tank 3100 is communicated with tap water, the water outlet of the water inlet buffer tank 3100 is communicated with the water inlet of the inlet pump 3200; the water inlet of the soft water filter 3300 is communicated with the water outlet of the inlet pump 3200; the water outlet of the steam generator 1100 The water inlet and the water inlet of the gas generator 1200 are both communicated with the water outlet of the soft water filter 3300 ; the salt tank 3400 is connected to the soft water filter 3300 .

In conjunction with the cracking treatment system of the above-mentioned embodiment of the invention, a cracking treatment method of the embodiment of the present invention is specifically as follows:

1. Superheated steam part

1. After the cracking treatment system is turned on, the steam generator 1100 is started, the steam generator 1100 heats water to form the first superheated steam, and passes the first superheated steam into the superheater 1300; wherein, the steam generator 1100 is driven by electricity, Using the steam generator 1100 to heat water to form superheated steam, the superheated steam is formed quickly and takes a short time.

2. The superheater 1300 further heats the first superheated steam to obtain the second superheated steam, and the second superheated steam can reach the temperature required for the cracking reaction (for example, 600° C.).

3. Pass the second superheated steam into the cracking reactor 300, and the second superheated steam deoxidizes and supplies heat to the cracking reactor 300.

4. The second superheated steam in the cracking reactor 300 is passed into the dryer 200 after being dedusted by the cyclone 2400, and the second superheated steam deoxidizes and preheats the dryer 200; Gaseous products (such as cracked gas, gaseous light oil) are also passed into the dryer 200 with the second superheated steam; the cyclone dust collector 2400 can collect the dust, preventing the dust from entering the dryer 200 and affecting the dryer 200; The dryer 200 preheats and dries the solid waste in the dryer 200 by using the waste heat of the mixed gas composed of superheated steam, cracked gas and gaseous light oil, thereby improving the thermal energy utilization efficiency and reducing energy consumption.

5. The mixed gas composed of superheated steam, cracked gas and gaseous light oil is discharged from the first gas outlet 240 to the condenser 2100 for condensation; wherein, the condensed products are mainly condensed water, liquid light oil and gaseous cracked gas .

6. The condensed condensed water, liquid light oil and gaseous cracked gas are passed to the three-phase separator 2200 for water, oil and gas three-phase separation, and the condensed water, liquid light oil and cracked gas are separated.

7. The cracked gas is sent to the gas generator 1200 for combustion as fuel, so that the gas generator 1200 heats water to form the first superheated steam, and the gas generator 1200 transports the first superheated steam to the superheater 1300; wherein, when the cracked gas is insufficient , the water can be heated by the steam generator 1100 to form the first superheated steam; the liquefied petroleum gas in the gas tank 1400 of the vaporization furnace 1500 can also be vaporized and supplied to the gas generator 1200 for combustion, so that the gas generator 1200 heats water to form the first superheated steam, The gas generator 1200 delivers the first superheated steam to the superheater 1300 to ensure a stable superheated steam environment in the system.

2. Solid waste treatment part

1. The solid waste is transported to the integrated crushing and pressing machine 4200 through the trash can elevator 4100 for crushing and pressing, and pretreatment of the solid waste. The crushed and pressed solid waste is transported to the feeding device 100 through the feeding screw conveyor 4300, and then fed to the dryer 200 by the feeding device 100.

2. The solid waste is transported to the dryer 200 for drying and preheating to obtain dry solid waste; wherein, the solid waste is transported in the dryer 200 through the first screw conveying mechanism 260 .

3. The dry solid waste is transported to the cracking reactor 300 through the first shut-off fan 370 for cracking reaction to obtain solid products (such as coke, carbon black, etc.) and gaseous products. The dry solid waste is transported in the cracking reactor 300 by the second screw conveying mechanism 350 .

4. The solid products (such as coke and carbon black, etc.) are transported to the cooling screw conveyor 400 through the second closing fan 380 for cooling.

5. The solid products (such as coke and carbon black, etc.) are transported to the receiving barrel 500 through the cooling screw conveyor 400 for collection.

3. Circulating cooling water part

1. The tap water is passed into the circulating water tank 610 for storage;

2. The circulating water pump 620 transports the cooling water in the circulating water tank 610 to the cooling sealing device 390 of the cracking reactor 300, the cooling water enters from the first water inlet 391, and the cooling water of the first screw conveying mechanism 260 of the cracking reactor 300 is affected. The shaft end is cooled; the cooled return water flows out from the first water outlet 392 and is transported back to the circulating water tank 610 .

3. The circulating water pump 620 transports the cooling water in the circulating water tank 610 to the cooling screw conveyor 400, and the cooling water enters from the water inlet of the cooling screw conveyor 400 to cool the solid products (such as coke and (carbon black, etc.) for cooling; the cooled reflux water flows out from the water outlet of the cooling screw conveyor 400 and is transported back to the circulating water tank 610 .

4. The circulating water pump 620 transports the cooling water in the circulating water tank 610 to the condenser 2100, the cooling water enters from the liquid inlet of the condenser 2100, and is composed of superheated steam, cracked gas and gaseous light oil in the condenser. The mixed gas performs heat exchange; the reflux water after heat exchange flows out from the liquid outlet of the condenser 2100 and is transported back to the circulating water tank 610 .

5. The circulating water pump 620 transports the cooling water in the circulating water tank 610 to the induced draft fan 2300, and the cooling water enters from the water inlet of the induced draft fan 2300 to cool the induced draft fan 2300; The water outlet flows out and is transported back to the circulating water tank 610 .

6. The return water is transported back to the circulating water tank 610, and can be discharged through the sewage outlet of the circulating water tank 610, and can also be used as cooling water for continuous recycling.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specifically," or "some examples", etc., are meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A cracking treatment system, characterized in that, comprising:

   A dryer (200), the dryer (200) is provided with a first inlet (210), a first outlet (220), a first air inlet (230), a first air outlet (240) and Smoke outlet (250);

   A cracking reactor (300), the cracking reactor (300) is provided with a second inlet (310), a second outlet (320), a second inlet (330) and a second outlet (340) ); the second feed port (310) communicates with the first discharge port (220);

   a waste collection system in communication with the second outlet (320);

   A heating system comprising a steam generator (1100), a gas generator (1200) and a superheater (1300); an air outlet of the steam generator (1100) and the gas generator (1200) The air outlets of the superheater (1300) are all communicated with the air inlet of the superheater (1300); the air outlet of the superheater (1300) is communicated with the second air inlet (330) of the cracking reactor (300);

   a condensation separation system, the condensation separation system is communicated with the first gas outlet (240) and the smoke outlet (250) respectively; the gas generator (1200) is connected with the condensation separation system, the The condensation separation system is used to condense and separate the reacted mixed gas and supply the separated cracked gas to the gas generator;

   A control system, the control system is respectively electrically connected with the dryer (200), the cracking reactor (300), the waste collection system, the heating system and the condensation separation system.
2. The cracking treatment system according to claim 1, characterized in that: the cracking treatment system further comprises a circulating cooling system, and the circulating cooling system comprises a circulating water tank (610) and a circulating water pump (620); the circulating water tank (610) is connected to the circulating water pump (620), the circulating water tank (610) is communicated with tap water, and the circulating water tank (610) is also connected to the cracking reactor (300) and the waste collection system respectively. communicated with the condensation separation system; the circulating water pump (620) is respectively communicated with the cracking reactor (300), the waste collection system and the condensation separation system, and the circulating water pump (620) is connected with the control System electrical connection.
3. The cracking treatment system according to claim 2, characterized in that: the dryer (200) is provided with a first screw conveying mechanism (260); the first screw conveying mechanism (260) is electrically connected to the control system. connected; the cracking reactor (300) further comprises a second screw conveying mechanism (350), a steam pipeline (360), a first closing fan (370), a second closing fan (380) and a cooling sealing device (390); The second screw conveying mechanism (350) is electrically connected to the control system, and both the second screw conveying mechanism (350) and the steam pipeline (360) are arranged in the cracking reactor; the steam pipeline (360) communicates with the second air inlet (330), the steam pipe (360) extends from one end of the cracking reactor (300) to the other end of the cracking reactor (300), the The steam pipe (360) is provided with a plurality of exhaust holes (361); the first shut-off fan (370) and the second shut-off fan (380) are electrically connected to the control system respectively; A closing fan (370) is connected with the second inlet (310); the second closing fan (380) is connected with the second outlet (320); the cooling sealing device (390) is used for The shaft end of the second screw conveying mechanism (350) is cooled; the cooling sealing device (390) is provided with a first water inlet (391) and a first water outlet (392); the first water inlet (391) is communicated with the circulating water pump (620); the first water outlet (392) is communicated with the circulating water tank (610).
4. The cracking treatment system according to claim 2, characterized in that: the waste collection system comprises a cooling screw conveyor (400) and a receiving barrel (500); the feed inlet of the cooling screw conveyor (400) is connected to the The second discharge port (320) is connected, the discharge port of the cooling screw conveyor (400) is connected with the receiving bucket (500), and the water inlet of the cooling screw conveyor (400) is connected to the The circulating water pump (620) is connected, the water outlet of the cooling screw conveyor (400) is connected with the circulating water tank (610), and the cooling screw conveyor (400) is electrically connected with the control system; the cooling screw conveyor (400) is electrically connected to the control system; The collecting tank (500) is used to collect the waste after the cracking reaction.
5. The cracking treatment system according to claim 2, characterized in that: the condensation separation system comprises a condenser (2100), a three-phase separator (2200) and an induced draft fan (2300); The air port is communicated with the first air outlet (240), the material outlet of the condenser (2100) is communicated with the feed port of the three-phase separator (2200), and the inlet of the condenser (2100) The liquid port is communicated with the circulating water pump (620), the liquid outlet of the condenser (2100) is communicated with the circulating water tank (610); the smoke outlet (250) is communicated with the three-phase separator ( 2200) is connected; the three-phase separator (2200) is used for the three-phase separation of water, oil and gas for the condensed mixture and flue gas; the air inlet of the induced draft fan (2300) is connected to the three-phase The air outlet of the separator (2200) is connected, the air outlet of the induced draft fan (2300) is connected to the air inlet of the gas generator (1200), and the water inlet of the induced draft fan (2300) is connected to the circulating water pump (620) is in communication, and the water outlet of the induced draft fan (2300) is in communication with the circulating water tank (610); the condenser (2100), the three-phase separator (2200) and the induced draft fan (2300) ) are respectively electrically connected to the control system.
6. The cracking treatment system according to claim 5, characterized in that: the condensation separation system further comprises a cyclone (2400) and a steam washing tank (2500); the air inlet of the cyclone (2400) is connected to the The second air outlet (340) is connected, and the air outlet of the cyclone (2400) is connected to the first air inlet (230); the steam washing tank (2500) is communicated with tap water, and the steam washing The tank (2500) communicates with the air outlet of the induced draft fan (2300).
7. The cracking treatment system according to claim 1, characterized in that: the heating system further comprises a gas tank (1400) and a vaporization furnace (1500); the gas tank (1400) contains liquefied petroleum gas, and the gas The tank (1400) is connected with the vaporizing furnace (1500); the vaporizing furnace (1500) is used for vaporizing the liquefied petroleum gas, and the vaporizing furnace is connected with the gas generator (1200).
8. The cracking treatment system according to claim 1, characterized in that: the cracking reaction system further comprises a soft water treatment device; the soft water treatment device comprises a water inlet buffer tank (3100), an inlet water pump (3200), a soft water filter ( 3300) and a salt tank (3400); the water inlet of the water inlet buffer tank (3100) is communicated with tap water, and the water outlet of the water inlet buffer tank (3100) is communicated with the water inlet of the inlet pump (3200); The water inlet of the soft water filter (3300) is communicated with the water outlet of the water inlet pump (3200); the water inlet of the steam generator (1100) and the water inlet of the gas generator (1200) are both connected to the soft water The water outlet of the filter (3300) is communicated; the salt tank (3400) is connected with the soft water filter (3300).
9. The cracking treatment system according to claim 1, characterized in that: the cracking reaction system further comprises a feeding device (100) and a pretreatment system; the feeding device (100) and the first feeding port (100) 210) is connected, and the feeding device is used for feeding the dryer (200); the pretreatment system includes a trash can elevator (4100), an integrated crushing and pressing machine (4200) and a feeding screw conveyor ( 4300); the trash can elevator (4100) is used to transport solid waste to the integrated crushing and pressing machine (4200); the integrated crushing and pressing machine (4200) and the feeding screw conveyor (4300) ) is connected to the feeding port of ), and the integrated crushing and pressing machine (4200) is used for crushing and pressing solid waste and conveying the solid waste to the feeding screw conveyor (4300); the feeding screw conveyor The outlet of (4300) is connected to the feeding device (100).
10. A kind of cracking treatment method, is characterized in that, comprises the following steps:

    The steam generator (1100) heats water to form first superheated steam, and passes the first superheated steam into the superheater (1300);

    The superheater (1300) further heats the first superheated steam to obtain the second superheated steam, and the second superheated steam can reach the temperature required for the cracking reaction;

    Passing the second superheated steam into the cracking reactor (300), and the second superheated steam deoxidizes and supplies heat to the cracking reactor (300);

    passing the second superheated steam in the cracking reactor (300) into the dryer (200), and the second superheated steam deoxidizes and preheats the dryer (200);

    transporting the solid waste to the dryer (200) for drying and preheating to obtain dry solid waste;

    The dry solid waste is transported to the cracking reactor (300) for cracking reaction to obtain solid product and gaseous product;

    conveying the solid product to a waste collection system for collection;

    Passing the mixed gas of the gaseous product and the second superheated steam into a condensation separation system for condensation and separation to obtain liquid light oil, cracked gas and condensed water;

    The cracked gas is transported to a gas generator (1200) as fuel for combustion, so that the gas generator (1200) heats water to form the first superheated steam, and the gas generator (1200) heats the first superheated steam. Steam is sent to the superheater (1300).

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