A microwave roller kiln cracking method and its control system

Abstract

The present invention provides a microwave roller kiln pyrolysis method and control system thereof, wherein the method comprises: obtaining target characteristic parameters in the microwave roller kiln pyrolysis equipment, the target characteristic parameters including a first current temperature within a first microwave pyrolysis zone, a second current temperature within a second microwave pyrolysis zone, a third current temperature within a third microwave pyrolysis zone, and / or the current moisture content of the object to be pyrolyzed upon entering the first microwave pyrolysis zone; determining a target processing strategy that matches the target characteristic parameters; and controlling the execution of the target processing operation according to the target processing strategy. In other words, the present invention can achieve the purpose of efficiently and rapidly processing solid waste, oily sludge, biomass, and other objects to be pyrolyzed based on the different temperatures within different microwave pyrolysis zones and / or the current moisture content of the object to be pyrolyzed upon entering the first microwave pyrolysis zone, thereby greatly improving microwave pyrolysis efficiency and reducing energy consumption, thereby extending the service life of the microwave roller kiln pyrolysis equipment.

Description

Technical Field

[0001] The present invention belongs to the field of industrial waste treatment and relates to, but is not limited to, a microwave roller kiln cracking method and a control system thereof. Background Art

[0002] Currently, the production processes of oil and gas, as well as petrochemical plants, often generate large amounts of solid waste, including oily mud, sludge, rock cuttings, and slag. These solid wastes not only occupy land and damage the landscape, but also contain toxic and hazardous substances that can easily become airborne and pose a threat to human health and the environment. Therefore, the rapid and efficient treatment of solid waste has become an increasingly popular research topic in the environmental protection field.

[0003] In the existing harmless treatment method of oil sludge, the oil sludge is first evenly distributed and then heated by microwaves. The mixed oil vapor separated by heating is condensed, and the non-condensable gas after condensation is washed and filtered. Finally, the gas generated after washing and filtering is discharged.

[0004] However, the existing methods for harmless treatment of waste oil can only treat oily sludge through oily sludge transportation, microwave heating, condensation, detergent and filtration, resulting in low treatment efficiency of oily sludge. Summary of the Invention

[0005] The purpose of the present invention is to provide a microwave roller kiln cracking method and its control system in response to the shortcomings of the above-mentioned prior art in the process of treating oily sludge, so as to solve the problem that the existing methods for harmless treatment of waste oil can only treat oily sludge through waste oil transportation, microwave heating, condensation, washing and filtration, resulting in low treatment efficiency of waste oily sludge.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0007] In a first aspect, the present invention provides a microwave roller kiln pyrolysis method, which is applied to a microwave roller kiln pyrolysis device, and comprises:

[0008] Obtaining target characteristic parameters in the microwave roller kiln pyrolysis equipment; wherein the target characteristic parameters include a first current temperature in the first microwave pyrolysis zone, a second current temperature in the second microwave pyrolysis zone, a third current temperature in the third microwave pyrolysis zone, and / or a current moisture content of the object to be pyrolyzed when entering the first microwave pyrolysis zone;

[0009] Determining a target processing strategy that matches the target characteristic parameters;

[0010] According to the target processing strategy, the target processing operation is controlled to be executed.

[0011] Optionally, when the target characteristic parameter includes a first current temperature in the first microwave cracking zone, determining a target processing strategy that matches the target characteristic parameter includes:

[0012] Matching the first current temperature with a first preset reference temperature to obtain a first target matching result;

[0013] When the first target matching result indicates that the first current temperature is higher than the first preset reference temperature, determining a target processing strategy including reducing the power of the first microwave source;

[0014] When the first target matching result indicates that the first current temperature is lower than the first preset reference temperature, a target processing strategy including increasing the power of the first microwave source is determined.

[0015] Optionally, when the target characteristic parameter includes a second current temperature in the second microwave cracking zone, determining a target processing strategy that matches the target characteristic parameter includes:

[0016] Matching the second current temperature with a second preset reference temperature to obtain a second target matching result;

[0017] When the second target matching result indicates that the second current temperature is higher than the second preset reference temperature, determining a target processing strategy including reducing the power of the second microwave source;

[0018] When the second target matching result indicates that the second current concentration is lower than the second preset reference concentration, a target processing strategy including increasing the power of the second microwave source is determined.

[0019] Optionally, when the target characteristic parameter includes a third current temperature in the third microwave cracking zone, determining a target processing strategy that matches the target characteristic parameter includes:

[0020] Matching the third current temperature with a third preset reference temperature to obtain a third target matching result;

[0021] When the third target matching result indicates that the third current temperature is higher than the third preset reference temperature, determining a target processing strategy including reducing the power of the third microwave source;

[0022] When the third target matching result indicates that the third current concentration is lower than the third preset reference concentration, a target processing strategy including increasing the power of the third microwave source is determined.

[0023] Optionally, when the target characteristic parameter includes the current moisture content of the object to be cracked when it enters the first microwave cracking zone, determining the target processing strategy that matches the target characteristic parameter includes:

[0024] Matching the current moisture content with a preset reference moisture content to obtain a fourth target matching result;

[0025] When the fourth target matching result indicates that the current moisture content is higher than the preset reference moisture content, determining a target processing strategy including increasing the length of the first microwave cracking zone;

[0026] When the fourth target matching result indicates that the current moisture content is lower than the preset reference moisture content, a target processing strategy including reducing the length of the first microwave cracking zone is determined.

[0027] Optionally, after the step of obtaining the current moisture content of the object to be cracked when it enters the first microwave cracking zone, the method further includes:

[0028] Obtaining a target microwave power that matches the current moisture content;

[0029] determining a target time required for the object to be lysed to be processed by the device based on the target microwave power;

[0030] A target rotational speed of the roller conveyor corresponding to the target time is determined, and a target cracking operation is controlled to be performed while the roller conveyor conveys the object to be cracked at the target rotational speed.

[0031] In a second aspect, the present invention provides a microwave roller kiln cracking device, comprising: a feed inlet, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller, a tray, a discharge port, and a controller;

[0032] Wherein, the first microwave cracking zone, the second microwave cracking zone and the third microwave cracking zone are sequentially arranged on the top of the roller, the feed port is arranged on the side wall of the first microwave cracking zone, and the discharge port is arranged on the side wall of the third microwave cracking zone. The tray is arranged in the first microwave cracking zone, the second microwave cracking zone and the third microwave cracking zone through the roller, the first microwave cracking zone includes a first air inlet and a first air outlet, the second microwave cracking zone includes a condensing unit, an exhaust gas treatment unit, a fan and a second air outlet, and the third microwave cracking zone includes a second air inlet and a third air outlet, and the controller is respectively connected to the first microwave source, the second microwave source, the third microwave source and the roller.

[0033] Optionally, the equipment is one of a biomass cracking treatment equipment, an oily sludge cracking treatment equipment, and a solid waste cracking treatment equipment.

[0034] In a third aspect, the present invention provides a microwave roller kiln cracking device, comprising: an acquisition module, a determination module, and a processing module, wherein:

[0035] an acquisition module for acquiring target characteristic parameters in the microwave roller kiln pyrolysis equipment; wherein the target characteristic parameters include a first current temperature in the first microwave pyrolysis zone, a second current temperature in the second microwave pyrolysis zone, a third current temperature in the third microwave pyrolysis zone, and / or a current moisture content of the object to be pyrolyzed when entering the first microwave pyrolysis zone;

[0036] A determination module, configured to determine a target processing strategy that matches the target characteristic parameters;

[0037] The processing module is used to control the execution of the target processing operation according to the target processing strategy.

[0038] In a fourth aspect, the present invention provides a microwave roller kiln cracking control device, characterized in that the control device includes: a processor and a memory, the memory is used to store instructions, and the processor is used to execute the instructions stored in the memory so that the control device performs the microwave roller kiln cracking method as described in the first aspect above.

[0039] The beneficial effects of the present invention are: a microwave roller kiln cracking method and a control system thereof in the present invention, wherein the microwave roller kiln cracking method is applied to a microwave roller kiln cracking device, the method comprising: obtaining target characteristic parameters in the microwave roller kiln cracking device; wherein the target characteristic parameters include a first current temperature in a first microwave cracking zone, a second current temperature in a second microwave cracking zone, a third current temperature in a third microwave cracking zone and / or a current moisture content of an object to be cracked when entering the first microwave cracking zone; determining a target processing strategy that matches the target characteristic parameters; and controlling the execution of a target processing operation according to the target processing strategy. That is to say, the present invention can achieve the purpose of efficiently and quickly treating solid waste, oily sludge, biomass and other objects to be cracked based on the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone and / or the current moisture content of the object to be cracked when it enters the first microwave cracking zone. It solves the problem that the existing method for harmless treatment of waste oil can only treat oil-containing sludge through oily sludge transportation, microwave heating, condensation, washing and filtration, resulting in low efficiency of oily sludge treatment. It greatly improves the microwave cracking efficiency and reduces energy consumption, thereby increasing the service life of the microwave roller kiln cracking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic flow chart of a microwave roller kiln cracking method according to one embodiment of the present invention;

[0042] Figure 2 A schematic structural diagram of a microwave roller kiln cracking device provided in another embodiment of the present invention;

[0043] Figure 3 A schematic diagram of a microwave roller kiln cracking device provided in yet another embodiment of the present invention;

[0044] Figure 4 A schematic diagram of a microwave roller kiln cracking control device provided in another embodiment of the present invention. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] Figure 1 A schematic flow chart of a microwave roller kiln cracking method according to one embodiment of the present invention; Figure 2 ; Figure 3 A schematic diagram of a microwave roller kiln cracking device provided in yet another embodiment of the present invention; Figure 4 A schematic diagram of a microwave roller kiln cracking control device provided in another embodiment of the present invention. Figures 1 to 4 , the microwave roller kiln cracking method and its control system provided by the embodiments of the present invention are described in detail.

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0053] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0054] The microwave roller kiln cracking method provided by the embodiment of the present invention is applied to a microwave roller kiln cracking device, and the execution body of the microwave roller kiln cracking method is a controller in the microwave roller kiln cracking device, such as Figure 1The figure shows the process flow diagram of microwave roller kiln cracking method. Figure 1 , and the steps included in the method are introduced in detail.

[0055] Step S101: obtaining target characteristic parameters in a microwave roller kiln cracking device.

[0056] The target characteristic parameters include the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone, and / or the current moisture content of the object to be cracked when it enters the first microwave cracking zone. The microwave roller kiln cracking equipment can be used to crack biomass, solid waste, oily sludge, and other objects to be cracked through different microwave cracking zones to respectively crack water, residual oil, organic matter, and residue, and discharge the water in the form of water vapor. The cracked residual oil, organic matter, and residue are further processed, and the processed clean solids are recovered and collected, and the processed clean gas is discharged. The organic matter includes organic impurities and organic waste gas.

[0057] Specifically, the microwave roller kiln pyrolysis equipment may include a first microwave pyrolysis zone, a second microwave pyrolysis zone, and a third microwave pyrolysis zone, each of which is equipped with a built-in sensor. Each sensor can be used to detect the current temperature within the corresponding microwave pyrolysis zone and transmit the detected current temperature to the controller. Therefore, the controller can receive the current temperatures detected by the sensors, that is, the controller can obtain a first current temperature within the first microwave pyrolysis zone, a second current temperature within the second microwave pyrolysis zone, and a third current temperature within the third microwave pyrolysis zone. Furthermore, the sensor within the first microwave pyrolysis zone can also be used to detect the current moisture content of the object to be pyrolyzed upon entering the first microwave pyrolysis zone and transmit the current moisture content to the controller. Therefore, the controller can also obtain the current moisture content of the object to be pyrolyzed upon entering the first microwave pyrolysis zone.

[0058] In addition, when the controller obtains the first current temperature, the second current temperature, the third current temperature, and the current moisture content, it may obtain them individually, or at least two of them, or simultaneously, which is not specifically limited here.

[0059] Step S102: Determine a target processing strategy that matches the target characteristic parameters.

[0060] Specifically, when the controller receives the target characteristic parameters sent by the sensor, it can match the target characteristic parameters with the preset target characteristic information to obtain a target processing strategy that matches the target characteristic parameters; wherein, when the target characteristic parameters include a first current temperature, a second current temperature, a third current temperature and / or a current moisture content, the preset target characteristic information may include a first preset reference temperature, a second preset reference temperature, a third preset reference temperature and / or a preset reference moisture content.

[0061] Therefore, when the target characteristic parameter includes the first current temperature in the first microwave cracking zone of the microwave roller kiln cracking device, step S102 can be implemented by the following sub-steps:

[0062] Step S1021: Match the first current temperature with a first preset reference temperature to obtain a first target matching result.

[0063] The first preset reference temperature can be used to indicate that the temperature within the first microwave pyrolysis zone is sufficient to indicate that the temperature is within the low-temperature range and that more than 90% of the water in the pyrolysis target has been pyrolyzed and converted into low-temperature water vapor. Furthermore, the first preset reference concentration can be a first reference temperature threshold or a first reference temperature range, without limitation.

[0064] Specifically, when the controller obtains the first current temperature in the first microwave cracking zone through the sensor, it can further match the first current temperature with the first preset reference temperature, such as comparing the first current temperature with the first reference temperature threshold or comparing the first current temperature with the maximum value and minimum value of the first reference temperature range, thereby obtaining a first target matching result.

[0065] Step S1022: When the first target matching result indicates that the first current temperature is higher than the first preset reference temperature, determining a target processing strategy including reducing the power of the first microwave source.

[0066] Specifically, when the controller determines that the first target matching result indicates that the first current temperature in the first microwave cracking zone is higher than the first preset reference temperature, it can be considered that the current temperature in the first microwave cracking zone is too high and does not belong to the low temperature range, and that more than 90% of the water in the object to be cracked cannot be cracked and converted into water vapor. At this time, a target processing strategy including reducing the power of the first microwave source can be determined to achieve the purpose of cracking more than 90% of the water in the object to be cracked and converting it into water vapor; wherein, the first current temperature in the first microwave cracking zone being higher than the first preset reference temperature may include the first current temperature being greater than the first reference temperature threshold or the first current temperature being greater than the maximum value of the first reference temperature range.

[0067] Step S1023: When the first target matching result indicates that the first current temperature is lower than the first preset reference temperature, determining a target processing strategy including increasing the power of the first microwave source.

[0068] Specifically, when the controller determines that the first target matching result indicates that the first current temperature in the first microwave cracking zone is lower than the first preset reference temperature, it can be considered that the current temperature in the first microwave cracking zone is too low and cannot crack out more than 90% of the water in the object to be cracked and convert it into water vapor. At this time, a target processing strategy can be determined, including increasing the power of the first microwave source, so that more than 90% of the water in the object to be cracked is cracked and converted into water vapor; wherein the first current temperature in the first microwave cracking zone is lower than the first preset reference temperature includes that the first current temperature is lower than the first reference temperature threshold or the first current temperature is lower than the minimum value of the first reference temperature range.

[0069] It should be noted that, when the controller determines that the first current temperature is equal to the first reference temperature threshold or that the first current temperature is between the minimum value and the maximum value of the first reference temperature range, it can be considered that the temperature in the current first microwave cracking zone is low temperature and can crack more than 90% of the water in the object to be cracked and convert it into low-temperature water vapor. At this time, the controller can control the device to perform a dehydration operation on the object to be cracked.

[0070] In an actual processing process, when the target characteristic parameter includes the second current temperature in the second microwave cracking zone, step S102 can be implemented by the following sub-steps:

[0071] Step S11: Match the second current temperature with a second preset reference temperature to obtain a second target matching result.

[0072] The second preset reference temperature can be used to indicate that the temperature within the second microwave cracking zone is sufficiently within the medium temperature range to decompose residual oil and organic matter in the target material and convert them into medium-temperature oil and gas. Furthermore, the second preset reference concentration can be a second reference temperature threshold or a second reference temperature range, without limitation.

[0073] Specifically, when the controller obtains the second current temperature in the second microwave cracking zone through the sensor, it can further match the second current temperature with the second preset reference temperature, such as comparing the second current temperature with the second reference temperature threshold or comparing the second current temperature with the maximum value and minimum value of the second reference temperature range, thereby obtaining a second target matching result.

[0074] Step S12: When the second target matching result indicates that the second current temperature is higher than the second preset reference temperature, determining a target processing strategy including reducing the power of the second microwave source.

[0075] Specifically, when the controller determines that the second target matching result indicates that the second current temperature in the second microwave cracking zone is higher than the second preset reference temperature, it can be considered that the current temperature in the second microwave cracking zone is too high and does not belong to the medium-temperature range, and the residual oil and organic matter in the object to be cracked cannot be cracked and converted into medium-temperature oil and gas. At this time, a target processing strategy including reducing the power of the second microwave source can be determined to achieve the purpose of cracking the residual oil and organic matter in the object to be cracked and converting them into medium-temperature oil and gas; wherein, the second current temperature in the second microwave cracking zone being higher than the second preset reference temperature may include the second current temperature being greater than the second reference temperature threshold or the second current temperature being greater than the maximum value of the second reference temperature range.

[0076] Step S13: When the second target matching result indicates that the second current concentration is lower than the second preset reference concentration, determining a target processing strategy including increasing the power of the second microwave source.

[0077] Specifically, when the controller determines that the second target matching result indicates that the second current temperature in the second microwave cracking zone is lower than the second preset reference temperature, it can be considered that the current temperature in the second microwave cracking zone is too low and the residual oil and organic matter in the object to be cracked cannot be cracked and converted into medium-temperature oil and gas. At this time, a target processing strategy including increasing the power of the second microwave source can be determined so that the residual oil and organic matter in the object to be cracked are cracked and converted into medium-temperature oil and gas; wherein the second current temperature in the second microwave cracking zone is lower than the second preset reference temperature includes that the second current temperature is lower than the second reference temperature threshold or the second current temperature is lower than the minimum value of the second reference temperature range.

[0078] It should be noted that, when the controller determines that the second current temperature is equal to the second reference temperature threshold or the second current temperature is between the minimum value and the maximum value of the second reference temperature range, it can be considered that the current temperature in the second microwave cracking zone is medium temperature and can crack the residual oil and organic matter in the object to be cracked and then convert it into medium-temperature oil and gas. At this time, the controller can control the equipment to perform cracking treatment of the residual oil and organic matter in the object to be cracked, condensation treatment of the medium-temperature oil and gas, and organic waste gas treatment operations.

[0079] In an actual processing process, when the target characteristic parameter includes the third current temperature in the third microwave cracking zone of the microwave roller kiln cracking device, step S102 can be implemented by the following sub-steps:

[0080] Step S21: Match the third current temperature with a third preset reference temperature to obtain a third target matching result.

[0081] The third preset reference concentration can be used to indicate that the temperature within the third microwave pyrolysis zone is sufficient to indicate that the temperature is within the high temperature range and that residual organic matter in the residual waste residue to be pyrolyzed can be combusted and / or oxidized after pyrolysis. Furthermore, the third preset reference concentration can be a third reference temperature threshold or a third reference temperature range, without limitation herein.

[0082] Specifically, when the controller obtains the third current temperature in the third microwave cracking zone through the sensor, it can further match the third current temperature with the third preset reference temperature, such as comparing the third current temperature with the third reference temperature threshold or comparing the third current temperature with the maximum and minimum values of the third reference temperature range, thereby obtaining a third target matching result.

[0083] Step S22: When the third target matching result indicates that the third current temperature is higher than the third preset reference temperature, determining a target processing strategy including reducing the power of the third microwave source.

[0084] Specifically, when the controller determines that the third target matching result indicates that the third current temperature in the third microwave cracking zone is higher than the third preset reference temperature, it can be considered that the current temperature in the third microwave cracking zone is too high and does not belong to the high temperature section, and the residual organic matter in the residual waste residue of the object to be cracked cannot be cracked out and then burned and / or oxidized. At this time, a target processing strategy including reducing the power of the third microwave source can be determined to achieve the purpose of cracking the residual organic matter in the residual waste residue of the object to be cracked and burning and / or oxidizing it; wherein, the third current temperature in the third microwave cracking zone is higher than the third preset reference temperature may include that the third current temperature is greater than the third reference temperature threshold or the third current temperature is greater than the maximum value of the third reference temperature range.

[0085] Step S23: When the third target matching result indicates that the third current concentration is lower than the third preset reference concentration, determining a target processing strategy including increasing the power of the third microwave source.

[0086] Specifically, when the controller determines that the third target matching result indicates that the third current temperature in the third microwave cracking zone is lower than the third preset reference temperature, it can be considered that the current temperature in the third microwave cracking zone is too low and cannot crack out the organic matter in the residual waste residue of the object to be cracked and then perform combustion and / or oxidation treatment. At this time, a target processing strategy including increasing the power of the third microwave source can be determined so that the residual organic matter in the residual waste residue of the object to be cracked is cracked and then burned and / or oxidized; wherein, the third current temperature in the third microwave cracking zone is lower than the third preset reference temperature includes that the third current temperature is lower than the third reference temperature threshold or the third current temperature is lower than the minimum value of the third reference temperature range.

[0087] It should be noted that when the controller determines that the third current temperature is equal to the third reference temperature threshold or the third current temperature is between the minimum value and the maximum value of the third reference temperature range, it can be considered that the temperature in the current third microwave cracking zone is high temperature and can crack and process the residue in the object to be cracked. At this time, the controller can control the equipment to perform cracking and processing operations on the residue in the object to be cracked.

[0088] In an actual processing process, when the target characteristic parameter includes the current moisture content of the object to be cracked when it enters the first microwave cracking zone, step S102 can be implemented by the following sub-steps:

[0089] Step S31: Match the current moisture content with a preset reference moisture content to obtain a fourth target matching result.

[0090] The preset reference moisture content can be used to indicate that the moisture content of the object to be pyrolyzed is moderate and that the length of the first microwave pyrolysis zone does not need to be adjusted. Furthermore, the preset reference moisture content can be a reference moisture content threshold or a reference moisture content range, without limitation herein.

[0091] Specifically, the controller obtains the information of the object to be cracked entering the

[0092] When the current moisture content in the first microwave cracking zone is measured, the current moisture content can be further matched with a preset reference moisture content, for example, the current moisture content can be compared with a reference moisture content threshold, or the current moisture content can be compared with the minimum and maximum values of the reference moisture content range, thereby obtaining a fourth target matching result.

[0093] Step S32: When the fourth target matching result indicates that the current moisture content is higher than the preset reference moisture content, determining a target processing strategy including increasing the length of the first microwave cracking zone.

[0094] Specifically, when the controller determines that the fourth target matching result indicates that the current moisture content of the object to be cracked when entering the first microwave cracking zone is higher than a preset reference moisture content, it can be considered that the object to be cracked contains a large amount of moisture and the intensity of the dehydration operation needs to be increased. At this time, a target processing strategy including increasing the length of the first microwave cracking zone can be determined to achieve the purpose of ensuring that the length of the first microwave cracking zone is sufficient to meet the execution condition of removing more than 90% of the moisture in the object to be cracked; wherein, the current moisture content of the object to be cracked when entering the first microwave cracking zone being higher than the preset reference moisture content may include that the current moisture content is greater than a reference moisture content threshold or that the current moisture content is greater than a maximum value of a reference moisture content range.

[0095] Step S33: When the fourth target matching result indicates that the current moisture content is lower than the preset reference moisture content, determining a target processing strategy including reducing the length of the first microwave cracking zone.

[0096] Specifically, when the controller determines that the fourth target matching result indicates that the current moisture content of the object to be cracked when entering the first microwave cracking zone is lower than a preset reference moisture content, it can be considered that the object to be cracked contains less moisture and the intensity of the dehydration operation needs to be reduced. At this time, a target processing strategy including reducing the length of the first microwave cracking zone can be determined to ensure that the first microwave cracking zone can meet the requirements of removing more than 90% of the moisture in the object to be cracked, thereby greatly improving the microwave utilization rate; wherein, the current moisture content of the object to be cracked when entering the first microwave cracking zone being lower than the preset reference moisture content may include the current moisture content being less than a reference moisture content threshold or the current moisture content being less than a minimum value of a reference moisture content range.

[0097] It should be noted that when the controller determines that the current moisture content of the object to be cracked when it enters the first microwave cracking zone is consistent with the reference moisture content threshold or the current moisture content is between the minimum and maximum values of the reference moisture content range, it can be considered that the humidity of the object to be cracked is moderate and the original length of the first microwave cracking zone can be used for efficient dehydration processing. At this time, the controller can control the equipment to perform the dehydration operation for the object to be cracked based on the original length of the first microwave cracking zone.

[0098] It should be noted that when the target characteristic parameters acquired by the controller include at least two of the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone, and / or the current moisture content of the object to be cracked when it enters the first microwave cracking zone, the controller can further perform matching of the first current temperature with the first preset reference temperature, the second current temperature with the second preset reference temperature, the third current temperature with the third preset reference temperature, and the current moisture content with the preset reference moisture content, thereby obtaining at least two corresponding target matching results, and thereby determining a target processing strategy corresponding to the at least two target matching results. The specific matching process is as described in the above embodiment and will not be repeated here.

[0099] In the actual processing process, after the step of obtaining the current moisture content of the object to be cracked when it enters the first microwave cracking zone, the method further includes:

[0100] Step S41: Obtain a target microwave power that matches the current moisture content.

[0101] Specifically, when the controller obtains the current moisture content of the object to be cracked when it enters the first microwave cracking zone, it can further determine whether the object to be cracked is too wet or too high based on the current moisture content. For example, when the current moisture content is lower than 20%, it is too dry, and when the current moisture content is higher than 90%, it is too wet. When the controller determines that the object to be cracked is too dry, the lowest power of the first microwave source, the second microwave source, and the third microwave source can be used as the target microwave power; when the controller determines that the object to be cracked is too wet, the maximum power of the first microwave source, the second microwave source, and the third microwave source can be used as the target microwave power.

[0102] Step S42: determining a target time required for the object to be cracked to be processed by the device based on the target microwave power.

[0103] Specifically, when the controller obtains the target microwave power, it can further search for the target time corresponding to the target microwave power in its own pre-stored microwave power-processing time list, and the target time can include the time required to perform the cracking and processing operations during the roller conveying of the object to be cracked in one circle under the action of the target microwave power.

[0104] Step S43: determining a target rotational speed of the roller corresponding to the target time, and controlling to perform a target cracking operation while the roller conveys the object to be cracked at the target rotational speed.

[0105] Specifically, when the controller obtains the target time, it can search for the target speed corresponding to the target time based on the time-speed list stored in itself, adjust the speed of the roller to the target speed, and then control the execution of the target cracking operation while controlling the roller to transport the object to be cracked at the target speed.

[0106] Step S103: Control the execution of the target processing operation according to the target processing strategy.

[0107] Specifically, when the target processing operation of increasing or decreasing the power of the first microwave source is determined, the controller can control the first microwave source on the top outer wall of the first microwave cracking zone to perform a power increase or decrease operation so that the temperature in the first microwave cracking zone belongs to the low temperature range.

[0108] When the target processing operation of increasing or decreasing the power of the second microwave source is determined, the controller can control the second microwave source on the top outer wall of the second microwave cracking zone to perform a power increase or decrease operation so that the temperature in the second microwave cracking zone belongs to the medium temperature range.

[0109] When the target processing operation of increasing or decreasing the power of the third microwave source is determined, the controller can control the third microwave source on the top outer wall of the third microwave cracking zone to perform a power increase or decrease operation so that the temperature in the third microwave cracking zone belongs to the high temperature section temperature.

[0110] When the target processing operation of increasing or decreasing the length of the first microwave cracking zone is determined, the controller can control the first baffle to slide leftward or rightward so that the length of the first microwave cracking zone can meet the dehydration conditions of removing the moisture contained in the object to be cracked and reducing its moisture content to below 10%.

[0111] In an embodiment of the present invention, the microwave roller kiln cracking method and its control system of the present invention, wherein the microwave roller kiln cracking method is applied to a microwave roller kiln cracking device, the method includes: obtaining target characteristic parameters in the microwave roller kiln cracking equipment; wherein the target characteristic parameters include a first current temperature in a first microwave cracking zone, a second current temperature in a second microwave cracking zone, a third current temperature in a third microwave cracking zone and / or a current moisture content of the object to be cracked when entering the first microwave cracking zone; determining a target processing strategy that matches the target characteristic parameters; and controlling the execution of a target processing operation according to the target processing strategy. That is to say, the present invention can achieve the purpose of efficiently and quickly treating solid waste, oily sludge, biomass and other objects to be cracked based on the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone and / or the current moisture content of the object to be cracked when it enters the first microwave cracking zone. It solves the problem that the existing method for harmless treatment of waste oil can only treat oil-containing sludge through oily sludge transportation, microwave heating, condensation, washing and filtration, resulting in low efficiency of oily sludge treatment. It greatly improves the microwave cracking efficiency and reduces energy consumption, thereby increasing the service life of the microwave roller kiln cracking equipment.

[0112] In another feasible embodiment, the present invention also provides a microwave roller kiln cracking device, such as Figure 2 As shown, the equipment includes: a feed port 1, a first microwave cracking zone 2, a second microwave cracking zone 3, a third microwave cracking zone 4, a roller 5, a tray 6 and a discharge port 7.

[0113] In which, the first microwave cracking zone 2, the second microwave cracking zone 3 and the third microwave cracking zone 4 can be arranged in sequence on the top of the roller 5, the feed port 1 can be arranged on the side wall of the first microwave cracking zone 2, the discharge port 7 can be arranged on the side wall of the third microwave cracking zone 4, and the tray 6 can be arranged in the first microwave cracking zone 2, the second microwave cracking zone 3 and the third microwave cracking zone 4 through the roller 5. The first microwave cracking zone 2 may include a first air inlet 21 and a first air outlet 22, the second microwave cracking zone 3 may include a condensing unit 31, an exhaust gas treatment unit 32, a second fan 33 and a second air outlet 34, and the third microwave cracking zone 4 may include a second air inlet 41 and a third air outlet 42.

[0114] In an embodiment of the present invention, the first microwave cracking zone 2, the second microwave cracking zone 3, and the third microwave cracking zone 4 may constitute a microwave kiln body. For example, the microwave kiln body may be divided into three zones from left to right, which are the first microwave cracking zone 2, the second microwave cracking zone 3, and the third microwave cracking zone 4, respectively.

[0115] Optionally, the microwave roller kiln cracking equipment provided by the present invention can be a microwave roller kiln structure and can be made of stainless steel. The roller 5 can transport the objects to be cracked placed in the tray 6 to each microwave cracking area for corresponding processing under the action of its own roller.

[0116] It should be noted that when the roller 5 rotates in a circular motion, the tray 6 containing the object to be cracked can be sent in sequence to the first cracking zone 2 for dehydration treatment, to the second microwave cracking zone 3 for residual oil and organic matter treatment, and to the third microwave cracking zone 4 for residue treatment, thereby achieving the purpose of rapid and efficient cracking treatment.

[0117] Optionally, the microwave kiln body can be made of stainless steel and a heat insulating layer can be provided therein. For example, the heat insulating layer can be made of a heat insulating material to prevent temperature loss.

[0118] In the embodiment of the present invention, metal meshes may be provided at the connections between the first air inlet 21 , the first air outlet 22 , the second air inlet 41 and the third air outlet 42 and the microwave kiln body, and no heat insulation material may be provided.

[0119] It should be noted that the purpose of setting up the metal mesh is to prevent microwave leakage. When the human body is in close proximity to the microwave radiation source for a long time, it will be exposed to excessive radiation energy, which may cause dizziness, sleep disorders, memory loss, bradycardia, and low blood pressure. When the microwave leakage reaches 1mw / cm 2When the microwave oven is heated, users may experience sudden dizziness, vision loss, or even cataracts. To protect user health, metal mesh is installed at the junctions of the first air inlet 21, the first air outlet 22, the second air inlet 41, and the third air outlet 42 with the microwave kiln body. Microwaves can cause microwave discharges at these corners, potentially leading to dangerous accidents. The metal mesh blocks microwave leakage, reducing harm to the human body and improving equipment safety.

[0120] In the embodiment of the present invention, a first baffle plate 8 may be provided between the first microwave cracking zone 2 and the second microwave cracking zone 3 , and a second baffle plate 9 may be provided between the second microwave cracking zone 3 and the third microwave cracking zone 4 .

[0121] Optionally, the first baffle plate 8 and the second baffle plate 9 can be flexible plates made of a material that is resistant to high temperatures and does not absorb microwaves.

[0122] It should be noted that the first partition plate 8 can separate the first microwave cracking zone 2 from the second microwave cracking zone 3, and the second partition plate 9 can separate the second microwave cracking zone 3 from the third microwave cracking zone 4, and the positions of the first partition plate 8 and the second partition plate 9 can be adjusted by manual setting or controller control, so as to achieve the purpose of adjusting the length of the first microwave cracking zone 2, the second microwave cracking zone 3 and the third microwave cracking zone 4.

[0123] In the embodiment of the present invention, the equipment may further include a loading platform 10 and a discharging platform 11 .

[0124] Optionally, the loading station 10 can be used to hold the material to be pyrolyzed, and the discharging station 11 can be used to recover clean solids after being treated by the microwave kiln. Clean solids can include solids that do not generate secondary pollution and are free of moisture, organic waste gas, and organic impurities. The material to be pyrolyzed can include solid waste, biomass, or oily sludge.

[0125] It should be noted that the feed port 1 can be set on one side of the microwave kiln body and can be set in the form of a door, and the discharge port 7 can be set on the other side of the microwave kiln body opposite to the feed port 1 and can also be set in the form of a door.

[0126] Optionally, the feed port 1 may be connected to an external cake pressing unit, which can be used to press the object to be cracked into a cake shape, thereby converting it into a cake-shaped cracked object with a thickness ranging from 0.1 to 30 cm. For example, the object to be cracked in the loading platform 10 is first converted into a cake-shaped cracked object by the cake pressing unit. The cake-shaped cracked object then enters the tray 6 in the first microwave cracking zone 2 through the feed port 1, and can first enter the first microwave cracking zone 2.

[0127] Optionally, the roller 5 can be a conveyor belt formed by a plurality of rollers rotating in a circular manner, so as to transport the cake-shaped cracking objects to the first microwave cracking zone 2, the second microwave cracking zone 3, and the third microwave cracking zone 4 for corresponding processing.

[0128] Optionally, the objects to be cracked in the loading station 10 are converted into cake-shaped cracked objects by the cake pressing unit and then placed in the tray 6 .

[0129] Optionally, the tray 6 can be used to place cake-shaped objects to be cracked, and is also used to transport the tray 6 with the objects to be cracked to each microwave cracking area for corresponding processing under the action of the roller 5, and finally transport the clean fixed product after processing to the discharge table 11 through the discharge port 7.

[0130] In the embodiment of the present invention, the tray 6 may be made of high-temperature resistant ceramic material and may include an absorber therein. The absorber may be a readily detachable three-dimensional structure made of a microwave-absorbing and high-temperature resistant material. The surface of the absorber facing the first microwave source 23 may have multiple corners. Exemplary absorbers may include graphite, silicon carbide, copper oxide, and the like.

[0131] It should be noted that, since the absorber has multiple sharp corners distributed on the surface facing the first microwave source 23, the arrangement of the multiple sharp corners can be similar to an egg plate. Therefore, when the cake-shaped cracking object is placed in the tray 6, it can not only increase the specific surface area, but also fully absorb the microwaves radiated by the first microwave source 23. Moreover, since the absorber is a three-dimensional structure, the cake-shaped cracking object can be easily dropped or poured out after being quickly and efficiently dehydrated in the first microwave cracking zone 2.

[0132] Moreover, since the cake-shaped cracking object itself can also absorb microwaves and is resistant to high temperatures, when the cake-shaped cracking object is subjected to microwave radiation from the corresponding microwave source in the corresponding microwave cracking zone under the action of the roller 5, the cake-shaped cracking object will first absorb the microwaves during microwave radiation, that is, automatically heat up; when the cake-shaped cracking object completely absorbs the microwaves, the absorber will become very hot, and the heated absorber will also heat the cake-shaped cracking object. When the cake-shaped cracking object absorbs microwaves to a certain extent and the degree of microwave absorption becomes poor, the radiated microwaves will pass through the cake-shaped cracking object and be completely absorbed by the absorber, and the temperature of the absorber will rise sharply to several thousand degrees Celsius, and further heat the cake-shaped cracking object, which is passive heating. Therefore, the present invention adopts a combination of microwave automatic heating and passive heating to achieve the cracking process of solid waste, oily sludge and biomass.

[0133] In an embodiment of the present invention, a first microwave source 23 can be provided on the top outer wall of the first microwave cracking zone 2, the first air inlet 21 and the first air outlet 22 can be respectively provided at the top of the first microwave cracking zone 2, and a first fan can be provided at the first air inlet 21.

[0134] Optionally, a first sensor, such as an infrared sensor or a thermocouple, may be provided in the first microwave cracking zone 2, and the first sensor may be used to detect the temperature in the first microwave cracking zone 2, so as to adjust the power of the first microwave source 23 according to the temperature control detected by the first sensor, so that the temperature in the first microwave cracking zone 2 is below 100°C and the moisture content in the cake-shaped cracking object is reduced to below 10%.

[0135] It should be noted that the first microwave cracking zone 2 is used to dehydrate the object to be cracked and its internal temperature is not high. Therefore, the first microwave cracking zone 2 can also be called a low-temperature treatment zone, and under the action of the first fan, the air introduced into the first microwave cracking zone 2 through the first air inlet 21 can crack the moisture in the cake-shaped cracking object. The cracked moisture can be converted into low-temperature water vapor under the action of low temperature and the low-temperature water vapor can be directly discharged through the first air outlet 22.

[0136] In an embodiment of the present invention, a second microwave source 35 can be provided on the top outer wall of the second microwave cracking zone 3, the second microwave cracking zone 3 can be externally connected to one end of the condensing unit 31, and the two ends of the exhaust gas treatment unit 32 can be respectively connected to the other end of the condensing unit 31 and one end of the second fan 33, and the other end of the second fan 33 can be provided with a second air outlet 34.

[0137] Optionally, a second sensor, such as an infrared sensor or a thermocouple, may be provided in the second microwave cracking zone 3, and the second sensor may be used to detect the temperature in the second microwave cracking zone 3, so as to adjust the power of the second microwave source 35 according to the temperature control detected by the second sensor, so that the temperature in the second microwave cracking zone 3 is within the range of 101-590°C and the residual oil, organic impurities and organic waste gas in the cake-shaped cracking object are cracked and converted into medium-temperature oil and gas, and then the medium-temperature oil and gas are sent to the condensation unit 31 and the organic waste gas treatment unit 32 for treatment.

[0138] It should be noted that the second microwave cracking zone 3 is used to process organic matter to be cracked and has a relatively high internal temperature. Therefore, the second microwave cracking zone 3 can also be referred to as a medium-temperature processing zone, and the air within the second microwave cracking zone 3 includes air that leaks from the first microwave cracking zone 2 into the second microwave cracking zone 3 through the first baffle 8 and air that leaks from the third microwave cracking zone 4 into the second microwave cracking zone 3 through the second baffle 9. The first baffle 8 also has the function of preventing water vapor and low-temperature air within the first microwave cracking zone 2 from entering the second microwave cracking zone 3, preventing medium-temperature oil and gas within the second microwave cracking zone 3 from leaking into the first microwave cracking zone 2, and preventing medium-temperature oil and gas within the second microwave cracking zone 3 from leaking into the third microwave cracking zone 4.

[0139] For example, the cake-shaped cracking object is cracked at medium temperature to remove most of its own residual oil, organic impurities, and organic waste gas, etc. After the cracking of the organic matter, it becomes waste residue and waste gas. The residual oil, waste residue, and waste gas produced by the cracking not only have oil and gas concentrations above the upper limit of the explosion limit and are within a safe range, but can also be drawn into the condensing unit 31 for condensation treatment under the action of its own pressure and the suction force of the condensing unit 31. The residual organic waste gas after condensation treatment is then processed by the waste gas treatment unit 32 for organic waste gas treatment. Finally, the clean gas produced is discharged through the second gas outlet 34 under the action of the second fan 33. Optionally, the second gas outlet 34 can be a chimney.

[0140] In the embodiment of the present invention, a third microwave source 43 may be provided on the top outer wall of the third microwave cracking zone 4 , and the second air inlet 41 and the third air outlet 42 may be respectively provided on the top of the third microwave cracking zone 4 .

[0141] Optionally, a third sensor, such as an infrared sensor or a thermocouple, may be provided in the third microwave cracking zone 4, and the third sensor may be used to detect the temperature in the third microwave cracking zone 4, so as to adjust the power of the third microwave source 43 according to the temperature control detected by the third sensor, so that the temperature in the third microwave cracking zone 4 is within the range of 591-1600°C and the organic matter in the residual waste residue of the cake-shaped cracking object is cracked and burned and / or oxidized.

[0142] It should be noted that after the cake-shaped cracking object has passed through the cracking treatment of the residual oil and organic matter in the second microwave cracking zone 3, it can enter the third microwave cracking zone 4 through the second baffle plate 9 to carry out cracking treatment of the residual organic matter in the residual waste residue. The third microwave cracking zone 4 is used to crack the residual organic matter in the residual waste residue and its internal temperature is relatively high. Therefore, the third microwave cracking zone 4 can also be called a high-temperature treatment zone, and the air introduced into the third microwave cracking zone 4 through the second air inlet 41 under the action of the second fan 33 can crack the residual organic matter in the residual waste residue. The organic waste gas concentration of the cracked residual organic matter is below the lower explosion limit and is within a safe range. The cracked residual organic matter can be processed into clean solids and clean gases by being burned and / or oxidized under high temperature. The clean solids can be collected by the discharge table 11 through the discharge port 7, and the clean gas can be discharged through the third air outlet 42. The second baffle 9 is also used to prevent the oil and gas cracked in the second microwave cracking zone 3 from leaking into the third microwave cracking zone 4 and to prevent the high-temperature air in the third microwave cracking zone 4 from leaking into the second microwave cracking zone 3 .

[0143] In the embodiment of the present invention, the number of the first microwave source 23 , the second microwave source 35 and the third microwave source 43 can be plural and adjacent ones can be vertically arranged.

[0144] Optionally, the first microwave source 23, the second microwave source 35 and the third microwave source 43 can all be microwave sources of the same type, and the microwave sources can all be composed of a magnetron, a waveguide and a radiator. When the number of the first microwave source 23 is multiple, the adjacent microwave sources are arranged vertically. When the number of the second microwave source 35 is multiple, the adjacent microwave sources are arranged vertically. When the number of the third microwave source 43 is multiple, the adjacent microwave sources are arranged vertically, so that the top outer wall of the first microwave decomposition zone 2, the top outer wall of the second microwave decomposition zone 3 and the top outer wall of the third microwave decomposition zone 4 are respectively similar to the structure of carbonyl nickel.

[0145] Optionally, the microwave windows of the first microwave source 23 , the second microwave source 35 and the third microwave source 43 may be made of a ceramic material that does not absorb microwaves, such as aluminum oxide, silicon nitride and the like.

[0146] It should be noted that the device may also include a controller and sensors. The number of sensors may be three and they may be respectively arranged in the first microwave cracking zone 2, the second microwave cracking zone 3 and the third microwave cracking zone 4. Each sensor may be an infrared sensor or a thermocouple. Each sensor may be used to measure the temperature in the corresponding microwave cracking zone, so that the controller can achieve the purpose of controlling the temperature in the corresponding microwave cracking zone by controlling the power of the microwave source on the top outer wall of the corresponding cracking zone. For example, the controller can control the temperature in the first microwave cracking zone 2 to be below 100°C by increasing or decreasing the power of the first microwave source 23, or control the temperature in the second microwave cracking zone 3 to be within the range of 101-590°C by increasing or decreasing the power of the second microwave source 35, or control the temperature in the third microwave cracking zone 4 to be within the range of 591-1600°C by increasing or decreasing the power of the third microwave source 43.

[0147] In addition, the rotation speed of the roller 5 can be set manually or adjusted by a controller. For example, the controller can adjust the rotation speed of the roller 5 according to the moisture content in the first microwave cracking zone 2 detected by the sensor. For example, when the cake-like cracked object passes through the roller 5 and enters the tray 6 in the first microwave cracking zone 2, the sensor can detect the moisture content of the cake-like cracked object. When the controller obtains the moisture content, it can determine whether the cake-like cracked object is too wet or too dry. When the cake-like cracked object is too dry (for example, with a moisture content of less than 20%), the time required to process the cake-like cracked object when the power of the first microwave source 23, the second microwave source 35, and the third microwave source 43 are all minimized can be determined, and the rotation speed of the roller 5 can be calculated based on the required time. Similarly, when the cake-like cracked object is too wet (for example, with a moisture content of greater than 90%), the time required to process the cake-like cracked object when the power of the first microwave source 23, the second microwave source 35, and the third microwave source 43 are all maximized can be determined, and the rotation speed of the roller 5 can be calculated based on the required time, so that the moisture, organic matter, and residue in the cake-like cracked object can be quickly and efficiently processed.

[0148] In an embodiment of the present invention, when the object to be cracked is converted into a cake-shaped cracking object through a cake pressing unit, it can enter the first microwave cracking zone 2 through the feed port 1 under the action of the roller 5 for dehydration treatment, and then enter the second microwave cracking zone 3 through the first baffle plate 8 for organic matter and residual oil treatment, and then enter the third microwave cracking zone 4 through the second baffle plate 9 for residue treatment. Finally, the treated clean solid is recovered and collected through the discharge port 7, and the treated clean gas is discharged through the third gas outlet 42. The gas generated during the entire treatment process is discharged through the first gas outlet 2 and the second gas outlet 34.

[0149] It should be noted that the equipment provided in the embodiment of the present invention can be one of a biomass pyrolysis treatment equipment, a sewage oil sludge pyrolysis treatment equipment, and a solid waste pyrolysis treatment equipment. The step descriptions and content descriptions of the biomass pyrolysis treatment equipment, the sewage oil sludge pyrolysis treatment equipment, and the solid waste pyrolysis treatment equipment are the same as those in other embodiments. Therefore, reference can be made to the descriptions in other embodiments and they will not be repeated here.

[0150] Disclosed in an embodiment of the present invention is a microwave roller kiln cracking equipment, comprising: a feed inlet, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller, a tray, a discharge port and a controller; wherein, the first microwave cracking zone, the second microwave cracking zone and the third microwave cracking zone are sequentially arranged on the top of the roller, the feed inlet is arranged on the side wall of the first microwave cracking zone, the discharge port is arranged on the side wall of the third microwave cracking zone, the tray is arranged in the first microwave cracking zone, the second microwave cracking zone and the third microwave cracking zone through the roller, the first microwave cracking zone includes a first air inlet and a first air outlet, the second microwave cracking zone includes a condensing unit, an exhaust gas treatment unit, a fan and a second air outlet, the third microwave cracking zone includes a second air inlet and a third air outlet, and the controller is respectively connected to the first microwave source, the second microwave source, the third microwave source and the roller. That is to say, the biomass, solid waste, and oily sludge to be cracked objects of the present invention are processed in sequence through the first microwave cracking zone, the second microwave cracking zone and the third cracking zone to achieve the purpose of treating the moisture, organic matter and residue in the objects to be cracked in different temperature sections, thereby achieving the purpose of quickly and efficiently cracking the biomass, solid waste, and oily sludge to be cracked objects by combining active and passive microwave heating, greatly improving the microwave cracking efficiency, and having the advantages of simple structure, safety and reliability, easy operation, low cost and continuous operation. It is widely used in the fields of environmental protection, oil and natural gas extraction, etc., thereby greatly improving the service life of the microwave roller kiln cracking equipment.

[0151] like Figure 3 The microwave roller kiln cracking device provided in the embodiment of the present invention is shown as follows: Figure 3As shown, the device includes: an acquisition module 301, a determination module 302 and a processing module 303, wherein: the acquisition module 301 is used to obtain target characteristic parameters in the microwave roller kiln cracking equipment; wherein, the target characteristic parameters include the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone and / or the current moisture content of the object to be cracked when entering the first microwave cracking zone; the determination module 302 is used to determine a target processing strategy that matches the target characteristic parameters; the processing module 303 is used to control the execution of the target processing operation according to the target processing strategy. That is to say, the present invention can achieve the purpose of efficiently and quickly treating solid waste, oily sludge, biomass and other objects to be cracked based on the first current temperature in the first microwave cracking zone, the second current temperature in the second microwave cracking zone, the third current temperature in the third microwave cracking zone and / or the current moisture content of the object to be cracked when it enters the first microwave cracking zone. It solves the problem that the existing method for harmless treatment of waste oil can only treat oil-containing sludge through oily sludge transportation, microwave heating, condensation, washing and filtration, resulting in low efficiency of oily sludge treatment. It greatly improves the microwave cracking efficiency and reduces energy consumption, thereby increasing the service life of the microwave roller kiln cracking equipment.

[0152] It should be noted that, for the description of the same steps and contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0153] Figure 4 This is a schematic diagram of a microwave roller kiln cracking control device provided in another embodiment of the present invention. The control device can be integrated into a terminal device or a chip of the terminal device, and the device includes: a memory 401 and a processor 402.

[0154] The memory 401 is used to store programs, and the processor 402 calls the programs stored in the memory 401 to execute the above method embodiment. The specific implementation methods and technical effects are similar and will not be repeated here.

[0155] Preferably, the present invention further provides a computer-readable storage medium, comprising a program, which is used to execute the above method embodiment when executed by a processor.

[0156] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0157] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0158] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0159] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor (English: processor) to perform some steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, abbreviated: ROM), a random access memory (English: Random Access Memory, abbreviated: RAM), a magnetic disk or an optical disk, and other media that can store program code.

Claims

1. A microwave roller kiln cracking method, characterized in that: The method is applied to a microwave roller kiln cracking device, and the method comprises: Obtaining target characteristic parameters in the microwave roller kiln pyrolysis equipment; wherein the target characteristic parameters include a first current temperature in the first microwave pyrolysis zone, a second current temperature in the second microwave pyrolysis zone, a third current temperature in the third microwave pyrolysis zone, and a current moisture content of the object to be pyrolyzed when entering the first microwave pyrolysis zone; Determining a target processing strategy that matches the target characteristic parameters, specifically including: When the first current temperature is higher than a first preset reference temperature, reducing the power of the first microwave source, and when the current moisture content is higher than a preset reference moisture content, synchronously increasing the length of the first microwave cracking zone; When the second current temperature is higher than a second preset reference temperature, reducing the power of the second microwave source and dynamically adjusting the speed of the roller according to the current moisture content; When the third current temperature is higher than the third preset reference temperature, reducing the power of the third microwave source, and introducing air into the third microwave cracking zone through the second air inlet to promote oxidation treatment of residual organic matter; According to the target processing strategy, the target processing operation is controlled to be executed.

2. The microwave roller kiln pyrolysis method according to claim 1, characterized in that: The first preset reference temperature is below 100° C., the second preset reference temperature is 101-590° C., the third preset reference temperature is 591-1600° C., and the preset reference moisture content is 20%-90%.

3. The microwave roller kiln pyrolysis method according to claim 1, characterized in that: The dynamic adjustment of the roller speed includes: The target microwave power is determined based on the current moisture content, and the target rotation speed of the roller is calculated according to the target microwave power, so that the residence time of the object to be cracked in the second microwave cracking zone matches the time required for cracking the organic matter.

4. The microwave roller kiln pyrolysis method according to claim 1, characterized in that: The increasing the length of the first microwave cracking zone is specifically: adjusting the position of the first baffle through the controller so that the length of the first microwave cracking zone is increased to 1.2-1.5 times the original length.

5. A microwave roller kiln cracking equipment, characterized in that: The device comprises: A feed port, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller table, a tray and a discharge port are arranged in sequence; The first microwave cracking zone is provided with a first microwave source, a first air inlet and a first air outlet; the second microwave cracking zone is provided with a second microwave source, a condensation unit, an exhaust gas treatment unit and a second air outlet; The third microwave cracking zone is provided with a third microwave source, a second air inlet and a third air outlet; a controller is connected to the first microwave source, the second microwave source, the third microwave source and the roller, respectively, and is configured to perform the following operations: When it is detected that the temperature of the first microwave cracking zone is higher than 100° C., the power of the first microwave source is reduced, and when the moisture content of the object to be cracked is higher than 90%, the length of the first microwave cracking zone is simultaneously increased; When it is detected that the temperature of the second microwave cracking zone is higher than 590°C, the power of the second microwave source is reduced, and the roller speed is dynamically adjusted according to the moisture content; When it is detected that the temperature of the third microwave cracking zone is higher than 1600° C., the power of the third microwave source is reduced, and the amount of air introduced into the second air inlet is controlled.

6. The device according to claim 5, characterized in that The length ratio of the first microwave cracking zone, the second microwave cracking zone and the third microwave cracking zone is 1:1.5:2, and the baffles between the cracking zones are made of slidable high-temperature resistant ceramics.

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