CN216132264U - Microwave roller kiln cracking device - Google Patents

Abstract

The utility model provides a microwave roller kiln cracking device, which comprises: feed inlet, first microwave pyrolysis zone, second microwave pyrolysis zone, third microwave pyrolysis zone, roll table, tray and discharge gate, first microwave pyrolysis zone, second microwave pyrolysis zone and third microwave pyrolysis zone set gradually in the top of roll table, and the feed inlet sets up in the lateral wall of first microwave pyrolysis zone, and the discharge gate sets up in the lateral wall of third microwave pyrolysis zone, and the tray passes through the roll table sets up in first microwave pyrolysis zone, second microwave pyrolysis zone and third microwave pyrolysis zone, and first microwave pyrolysis zone includes first air inlet and first gas outlet, and second microwave pyrolysis zone includes condensation unit, tail gas processing unit, second fan and second gas outlet, and third microwave pyrolysis zone includes second air inlet and third gas outlet. That is, the utility model utilizes the mode of combining microwave active heating and passive heating to rapidly and efficiently crack biomass, solid waste and dirty oil sludge, thereby greatly improving the microwave cracking efficiency.

Description

Microwave roller kiln cracking device

Technical Field

The utility model belongs to the field of industrial waste treatment, and relates to but is not limited to a microwave roller kiln cracking device.

Background

At present, in the processes of petroleum and natural gas exploitation and petrochemical industry enterprise production, a large amount of solid wastes such as oil-containing mud, sludge, rock debris, waste residues and the like are usually generated, and because the solid wastes occupy land and destroy landscapes, toxic and harmful components contained in the solid wastes are easy to damage human health and environment in an air flowing mode. Therefore, how to treat solid waste quickly and efficiently is becoming a popular research direction in the environmental protection field.

The existing sewage oil sludge thermal desorption harmless treatment device comprises a material conveying and distributing unit, a microwave heating unit, a condensing unit, a waste gas treatment unit and an electric control and automatic control unit, wherein the material conveying and distributing unit comprises a feeding screw conveyor, a material hopper, a material distributor, a cloth conveying device and a dry sludge collecting box, the microwave heating unit comprises a heating cavity, a microwave generator, an oil vapor collecting pipeline and a discharging screw conveyor, the condensing unit comprises a condenser, an oil-water separator, a cooling water tank pool, an oil storage tank, a pipeline and a valve, and the waste gas treatment unit comprises a draught fan, a purification tower, a purified liquid medicine box and a liquid medicine pump.

However, the existing thermal desorption harmless treatment device for oil sludge can only treat oil-containing sludge by oil sludge conveying, microwave heating, condensation and tail gas treatment, so that the treatment efficiency of the oil sludge is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a microwave roller kiln cracking device aiming at the defects in the process of treating the oil sludge by the technology, and aims to solve the problem that the existing oil sludge thermal desorption harmless treatment device can only treat the oil-containing sludge by oil sludge conveying, microwave heating, condensation and tail gas treatment, so that the treatment efficiency of the oil sludge is not high.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

the embodiment of the utility model provides a cracking device of a microwave roller kiln, which comprises: the device comprises a feed inlet, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller way, a tray and a discharge port;

wherein, first microwave pyrolysis zone second microwave pyrolysis zone with third microwave pyrolysis zone set gradually in the top of roll table, the feed inlet set up in the lateral wall of first microwave pyrolysis zone, the discharge gate set up in the lateral wall of third microwave pyrolysis zone, the tray passes through the roll table set up in first microwave pyrolysis zone second microwave pyrolysis zone with in the third microwave pyrolysis zone, first microwave pyrolysis zone includes first air inlet and first gas outlet, second microwave pyrolysis zone includes condensation unit, exhaust-gas treatment unit, second fan and second gas outlet, third microwave pyrolysis zone includes second air inlet and third gas outlet.

Optionally, a first baffle plate is arranged between the first microwave pyrolysis zone and the second microwave pyrolysis zone, and a second baffle plate is arranged between the second microwave pyrolysis zone and the third microwave pyrolysis zone.

Optionally, a first microwave source is arranged on the outer wall of the top of the first microwave pyrolysis zone, the first air inlet and the first air outlet are respectively arranged at the top of the first microwave pyrolysis zone, and a first fan is arranged at the first air inlet.

Optionally, a second microwave source is arranged on the outer wall of the top of the second microwave pyrolysis zone, the second microwave pyrolysis zone is externally connected with one end of the condensing unit, two ends of the waste gas treatment unit are respectively connected with the other end of the condensing unit and one end of the second fan, and the other end of the second fan is provided with a second gas outlet.

Optionally, a third microwave source is disposed on an outer wall of a top of the third microwave cracking zone, and the second air inlet and the third air outlet are respectively disposed at the top of the third microwave cracking zone.

Optionally, the first microwave pyrolysis zone, the second microwave pyrolysis zone and the third microwave pyrolysis zone form a microwave kiln body, and the microwave kiln body is made of stainless steel and is internally provided with a heat insulation layer.

Optionally, the tray is made of a high-temperature-resistant ceramic material, a wave absorbing body is arranged in the tray, the wave absorbing body is of an easily-separated three-dimensional structure made of a high-temperature-resistant material capable of absorbing microwaves, and a plurality of edges and corners are distributed on a surface, facing the first microwave source, of the wave absorbing body.

Optionally, the first baffle plate and the second baffle plate are respectively flexible plates made of a high-temperature-resistant material which does not absorb microwaves, and the feed inlet is externally connected with the cake pressing unit.

Optionally, the number of the first microwave source, the second microwave source and the third microwave source is multiple, and the first microwave source, the second microwave source and the third microwave source are vertically arranged between adjacent ones.

Optionally, the first air inlet, the first air outlet, the second air inlet and the third air outlet are respectively provided with a metal mesh at the joint with the microwave kiln body, and are not provided with a heat insulating material.

The utility model has the beneficial effects that: a cracking device of a microwave roller kiln comprises: the device comprises a feed inlet, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller way, a tray and a discharge port; wherein, first microwave pyrolysis zone second microwave pyrolysis zone with third microwave pyrolysis zone set gradually in the top of roll table, the feed inlet set up in the lateral wall of first microwave pyrolysis zone, the discharge gate set up in the lateral wall of third microwave pyrolysis zone, the tray passes through the roll table set up in first microwave pyrolysis zone second microwave pyrolysis zone with in the third microwave pyrolysis zone, first microwave pyrolysis zone includes first air inlet and first gas outlet, second microwave pyrolysis zone includes condensation unit, exhaust-gas treatment unit, second fan and second gas outlet, third microwave pyrolysis zone includes second air inlet and third gas outlet. That is, the biomass, solid waste and sump oil sludge to be cracked object of the utility model can realize the purpose of processing the moisture, organic matters and residues in the object to be cracked in different temperature sections by a mode of processing through the first microwave cracking area, the second microwave cracking area and the third cracking area in sequence, thereby realizing the purpose of rapidly and efficiently cracking the biomass, solid waste and sump oil sludge to be cracked object by a mode of combining microwave active heating and passive heating, greatly improving the microwave cracking efficiency, solving the problem that the prior sump oil sludge thermal desorption harmless processing device can only process the oil-containing sludge by the modes of sump oil sludge conveying, microwave heating, condensing and tail gas processing, resulting in low processing efficiency of the sump oil sludge, having the advantages of simple structure, safety and reliability, easy operation, low cost and continuous operation, having wide application in the fields of environmental protection, petroleum and natural gas exploitation, etc., thereby greatly prolonging the service life of the cracking device of the microwave roller kiln.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a cracking apparatus of a microwave roller kiln according to an embodiment of the present invention.

Icon: 1-feeding hole, 2-first microwave cracking zone, 3-second microwave cracking zone, 4-third microwave cracking zone, 5-roller bed, 6-tray, 7-discharging hole, 8-first baffle plate, 9-second baffle plate, 10-charging table, 11-discharging table, 21-first air inlet, 22-first air outlet, 23-first microwave source, 31-condensing unit, 32-waste gas treatment unit, 33-second fan, 34-second air outlet, 35-second microwave source, 41-second air inlet, 42-third air outlet and 43-third microwave source.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Here, the terms related to the present invention are explained:

the roller way is a transportation device for transporting rolled pieces by utilizing the rotation of cylindrical rollers. It connects the various procedures of the rolling production process with each other. Realizes the mechanization of operation, greatly improves the labor condition, improves the production efficiency and provides conditions for realizing automatic operation. The roller way is also the main equipment for conveying rolled pieces in a steel rolling workshop, the weight of the roller way accounts for about 40% of the total weight of the equipment in the whole steel rolling workshop, and the roller way is the most used equipment in the steel rolling workshop.

The microwave is an electric wave with a frequency of 300 megahertz to 300 gigahertz, and water molecules in the heated medium material are polar molecules. Under the action of a rapidly changing high-frequency point magnetic field, the polarity orientation of the magnetic field changes along with the change of an external electric field. The effect of mutual friction motion of molecules is caused, at the moment, the field energy of the microwave field is converted into heat energy in the medium, so that the temperature of the material is raised, and a series of physical and chemical processes such as thermalization, puffing and the like are generated to achieve the aim of microwave heating.

Fig. 1 is a schematic view of a cracking apparatus of a microwave roller kiln according to an embodiment of the present invention. The microwave roller kiln cracking device provided by the embodiment of the utility model is described in detail below with reference to fig. 1.

Fig. 1 is a schematic view of a cracking apparatus of a microwave roller kiln according to an embodiment of the present invention, and as shown in fig. 1, the cracking apparatus of a microwave roller kiln includes: the microwave pyrolysis device comprises a feed inlet 1, a first microwave pyrolysis zone 2, a second microwave pyrolysis zone 3, a third microwave pyrolysis zone 4, a roller way 5, a tray 6 and a discharge port 7.

Wherein, first microwave pyrolysis zone 2, second microwave pyrolysis zone 3 and third microwave pyrolysis zone 4 can set gradually in the top of roll table 5, feed inlet 1 can set up in the lateral wall of first microwave pyrolysis zone 2, discharge gate 7 can set up in the lateral wall of third microwave pyrolysis zone 4, tray 6 can set up in first microwave pyrolysis zone 2 through roll table 5, in second microwave pyrolysis zone 3 and the third microwave pyrolysis zone 4, first microwave pyrolysis zone 2 can include first air inlet 21 and first gas outlet 22, second microwave pyrolysis zone 3 can include condensing unit 31, exhaust-gas treatment unit 32, second fan 33 and second gas outlet 34, third microwave pyrolysis zone 4 can include second air inlet 41 and third gas outlet 42.

In the embodiment of the utility model, the first microwave pyrolysis zone 2, the second microwave pyrolysis zone 3 and the third microwave pyrolysis zone 4 can form a microwave kiln body. Illustratively, the microwave kiln body can be divided into three zones from left to right, and the three zones are a first microwave cracking zone 2, a second microwave cracking zone 3 and a third microwave cracking zone 4 from left to right.

Optionally, the cracking device of the microwave roller kiln provided by the utility model can be of a structure of the microwave roller kiln and can be made of stainless steel, and the roller 5 can convey the objects to be cracked placed in the tray 6 to each microwave cracking area for corresponding treatment under the action of the roller.

It should be noted that, the roller table 5 can sequentially convey the tray 6 containing the objects to be cracked to the first cracking zone 2 for dehydration treatment, the second microwave cracking zone 3 for residual oil and organic matter treatment, and the third microwave cracking zone 4 for residue treatment when the roller table rotates circularly, so as to achieve the purpose of performing rapid and efficient cracking treatment on the tray.

Optionally, the microwave kiln body may be made of stainless steel and may have a heat insulation layer therein. For example, the heat insulation layer may be made of a heat insulation material, so as to prevent temperature loss.

In the embodiment of the present invention, the joints 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 may be provided with metal nets and may not be provided with heat insulating materials.

It should be noted that the metal mesh is provided to prevent the microwave from leaking. When the human body is very close to the microwave radiation source for a long time, the phenomena of dizziness, sleep disorder, hypomnesis, bradycardia, blood pressure reduction and the like are caused by excessive radiation energy. When the microwave leakage reaches 1mw/cm²When it occurs, the eyes feel suddenly dazzled, the vision is degraded, and even cataract is caused. In order to ensure the health of users, metal nets are arranged at the joints 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 respectively, and the corners can generate microwave discharge under the action of microwaves, so that dangerous accidents are easy to happen. The metal mesh can block microwave leakage, reduce the damage of microwave to human body and improve the safety of the device.

In the embodiment of the present invention, a first baffle plate 8 may be disposed between the first microwave pyrolysis zone 2 and the second microwave pyrolysis zone 3, and a second baffle plate 9 may be disposed between the second microwave pyrolysis zone 3 and the third microwave pyrolysis zone 4.

Alternatively, the first barrier 8 and the second barrier 9 may be flexible plates made of a material that is resistant to high temperature and does not absorb microwaves, respectively.

It should be noted that, the first baffle plate 8 may be arranged to separate the first microwave pyrolysis zone 2 from the second microwave pyrolysis zone 3, the second baffle plate 9 may be arranged to separate the second microwave pyrolysis zone 3 from the third microwave pyrolysis zone 4, and the positions of the first baffle plate 8 and the second baffle plate 9 may be adjusted by manual setting or by control of a controller, so as to achieve the purpose of adjusting the lengths of the first microwave pyrolysis zone 2, the second microwave pyrolysis zone 3, and the third microwave pyrolysis zone 4.

In the embodiment of the utility model, the device can further comprise a charging platform 10 and a discharging platform 11.

Alternatively, the charging table 10 may be used to hold the objects to be cracked, and the discharging table 11 may be used to recover clean solids after being processed by the microwave kiln body. The clean solid may include a solid which does not produce secondary pollution, contains no moisture, contains no organic waste gas, and does not contain organic impurities, and the object to be cracked may include one of solid waste, biomass, and oil sludge.

It should be noted that the feeding port 1 may be disposed on one side of the microwave kiln body and may be disposed in a door manner, and the discharging port 7 may be disposed on another side of the microwave kiln body opposite to the feeding port 1 and may also be disposed in a door manner.

Optionally, the feed inlet 1 may be externally connected with a cake pressing unit, and the cake pressing unit may be used for pressing the object to be cracked into a cake shape, so as to convert the object to be cracked into a cake-shaped cracking object with a thickness in the range of 0.1-30 cm. For example, the object to be cracked in the loading table 10 is first converted into a cake-shaped cracking object by the cake pressing unit, and the cake-shaped cracking object enters the tray 6 in the first microwave cracking zone 2 through the feeding port 1 and can enter the first microwave cracking zone 2.

Optionally, the roller table 5 may be a conveyor belt formed by a plurality of rollers rotating circularly, so as to convey the cake-shaped cracking object to the first microwave cracking zone 2, the second microwave cracking zone 3, and the third microwave cracking zone 4 respectively for corresponding treatment.

Optionally, the object to be cracked in the loading table 10 is converted into a cake-shaped cracking object by the cake pressing unit and then placed in the tray 6.

Optionally, the tray 6 may be used to place a cake-shaped object to be cracked, and also used to send the tray 6 in which the object to be cracked is placed to each microwave cracking area under the action of the roller table 5 for corresponding processing, and finally, the cleaned object generated after the processing is conveyed to the discharging table 11 through the discharging port 7.

In the embodiment of the present invention, the tray 6 may be made of a high temperature resistant ceramic material, the tray 6 may be provided therein with a wave absorber, the wave absorber may be a stereo structure which is easy to separate and made of a high temperature resistant material and absorbs microwaves, and a plurality of edges may be distributed on a surface of the wave absorber facing the first microwave source 23. Illustratively, the absorber may be graphite, silicon carbide, copper oxide, or the like.

It should be noted that, because the wave absorbing body is distributed with a plurality of edges and corners on the surface of the first microwave source 23, and the arrangement of the plurality of edges and corners can be similar to an egg tray, when a cake-shaped cracking object is placed in the tray 6, not only the specific surface area can be increased, but also the microwaves radiated by the first microwave source 23 can be fully absorbed, and because the wave absorbing body is of a three-dimensional structure, the cake-shaped cracking object can be easily dropped or poured out after being subjected to rapid and efficient dehydration treatment through the first microwave cracking area 2.

Moreover, since the cake-shaped cracking object can also absorb microwaves and is high-temperature resistant, when the cake-shaped cracking object is subjected to different microwave cracking areas under the action of the roller table 5, the cake-shaped cracking object is subjected to microwave radiation corresponding to microwave sources in the microwave cracking areas, and the cake-shaped cracking object can firstly absorb the microwaves during the microwave radiation, namely, is automatically heated; the cake form schizolysis object can make the wave absorption body very hot when absorbing the microwave completely, and the wave absorption body that becomes hot also can heat cake form schizolysis object, and when the cake form schizolysis object absorbed the microwave to the degree variation that the microwave was absorbed to a certain extent, the microwave of radiation can see through cake form schizolysis object and be absorbed completely by the wave absorption body and wave absorption body temperature can sharply rise to several thousand degrees centigrade effect to further heat cake form schizolysis object, be passive heating this moment. Therefore, the utility model realizes the cracking process of solid waste, oil sludge and biomass by adopting a mode of combining microwave automatic heating and passive heating.

In the embodiment of the present invention, the outer wall of the top of the first microwave pyrolysis zone 2 may be provided with a first microwave source 23, the first air inlet 21 and the first air outlet 22 may be respectively disposed at the top of the first microwave pyrolysis zone 2, and the first air inlet 21 may be provided with a first fan.

Optionally, a first sensor, such as an infrared sensor or a thermocouple, may be disposed in the first microwave pyrolysis zone 2, and the first sensor may be used to detect the temperature in the first microwave pyrolysis zone 2, so as to control and adjust the power of the first microwave source 23 according to the temperature detected by the first sensor, so that the temperature in the first microwave pyrolysis zone 2 is below 100 ℃ and the water content in the cake-shaped pyrolysis object is reduced to below 10%.

It should be noted that, the first microwave pyrolysis zone 2 is used for performing dehydration treatment on an object to be pyrolyzed, and the internal temperature of the first microwave pyrolysis zone 2 is not high, so the first microwave pyrolysis zone 2 may also be called as a low temperature treatment zone, and the air introduced into the first microwave pyrolysis zone 2 through the first air inlet 21 under the action of the first fan can be pyrolyzed to obtain moisture in the cake-shaped pyrolysis object, the pyrolyzed 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.

In the embodiment of the present invention, a second microwave source 35 may be disposed on an outer wall of a top portion of the second microwave cracking zone 3, the second microwave cracking zone 3 may be externally connected to one end of the condensing unit 31, two ends of the waste gas treatment unit 32 may 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 may be provided with a second air outlet 34.

Optionally, a second sensor, such as an infrared sensor or a thermocouple, may be disposed in the second microwave cracking zone 3, and the second sensor may be configured to detect a temperature in the second microwave cracking zone 3, so as to control and adjust the power of the second microwave source 35 according to the temperature detected by the second sensor, so that the temperature in the second microwave cracking zone 3 is within a range of 101-.

It should be noted that the second microwave pyrolysis zone 3 is used for processing organic matters to be pyrolyzed and has a higher internal temperature, so the second microwave pyrolysis zone 3 may also be referred to as a medium temperature processing zone, and the air in the second microwave pyrolysis zone 3 includes air leaked from the first microwave pyrolysis zone 2 into the second microwave pyrolysis zone 3 through the first baffle plate 8 and air leaked from the third microwave pyrolysis zone 4 into the second microwave pyrolysis zone 3 through the second baffle plate 9. The first baffle plate 8 also has the functions of preventing water vapor and low-temperature air in the first microwave pyrolysis zone 2 from entering the second microwave pyrolysis zone 3, preventing medium-temperature oil gas in the second microwave pyrolysis zone 3 from leaking into the first microwave pyrolysis zone 2, and preventing medium-temperature oil gas in the second microwave pyrolysis zone 3 from leaking into the third microwave pyrolysis zone 4.

Illustratively, a cake-shaped cracking object cracks most of organic matters such as residual oil and organic matter impurities and organic waste gas under the action of medium temperature, the cracked organic matters become waste residues and waste gas, the oil-gas concentration of the cracked residual oil, waste residues and waste gas is above the upper limit of the explosion limit and belongs to the safety range, the cracked residual oil, waste residues and waste gas can be pumped into the condensing unit 31 under the action of the self pressure and the suction force of the condensing unit 31 for condensation treatment, the condensed residual organic waste gas is subjected to organic waste gas treatment through the waste gas treatment unit 32, and finally the generated clean gas is discharged through the second gas outlet 34 under the action of the second fan 33. Alternatively, the second outlet 34 may be a chimney.

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

Optionally, a third sensor, such as an infrared sensor or a thermocouple, may be disposed in the third microwave pyrolysis zone 4, and the third sensor may be configured to detect the temperature in the third microwave pyrolysis zone 4, so as to control and adjust the power of the third microwave source 43 according to the temperature detected by the third sensor, so that the temperature in the third microwave pyrolysis zone 4 is in the range of 591-.

It should be noted that after the cracking treatment of the residual oil and organic matters in the cake-shaped cracking object through the second microwave cracking zone 3, the cake-shaped cracking object can enter the third microwave cracking zone 4 through the second baffle plate 9 to perform the cracking treatment operation of the residual organic matters in the residual waste residue, the third microwave cracking zone 4 is used for performing the cracking treatment of the residual organic matters in the residual waste residue and has a higher internal temperature, therefore, the third microwave cracking zone 4 can also be called as 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 matters in the residual waste residue, the concentration of the organic waste gas of the cracked residual organic matters is below the lower limit of the explosion limit and belongs to a safe range, and the cracked residual organic matters can be treated into clean solid and clean gas through being burned and/or oxidized under the high temperature action, clean solids may be collected by the discharge table 11 via the discharge opening 7 and clean gas may be discharged via the third gas outlet 42. The second baffle plate 9 is also used for preventing oil gas cracked in the second microwave cracking zone 3 from leaking into the third microwave cracking zone 4 and preventing high-temperature air in the third microwave cracking zone 4 from leaking into the second microwave cracking zone 3.

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 may be multiple, and adjacent ones may be vertically disposed.

Optionally, the first microwave source 23, the second microwave source 35, and the third microwave source 43 may all be the same type of microwave source, and each microwave source may be composed of a magnetron, a waveguide, and a radiator, the number of the first microwave sources 23 is a number of vertically arranged between a plurality of time-adjacent microwave sources, the number of the second microwave sources 35 is a number of vertically arranged between a plurality of time-adjacent microwave sources, and the number of the third microwave sources 43 is a number of vertically arranged between a plurality of time-adjacent microwave sources, so that the structure similar to nickel carbonyl is respectively on the top outer wall of the first microwave cracking zone 2, the top outer wall of the second microwave cracking zone 3, and the top outer wall of the third microwave cracking zone 4.

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 non-microwave absorbing ceramic materials, such as aluminum oxide, silicon nitride, etc.

It should be noted that the apparatus may further include a controller and sensors, the number of the sensors may be three and may be respectively disposed in the first microwave pyrolysis zone 2, the second microwave pyrolysis zone 3 and the third microwave pyrolysis zone 4, each sensor may be an infrared sensor, or a thermocouple, each sensor may be used to measure the temperature within the corresponding microwave lysis zone, so that the controller can control the temperature in the corresponding microwave pyrolysis zone by controlling the power of the microwave source on the outer wall of the top of the corresponding pyrolysis zone, for example, the controller can control the temperature in the first microwave pyrolysis zone 2 to be below 100 ℃ by increasing or decreasing the power of the first microwave source 23, can control the temperature in the second microwave pyrolysis zone 3 to be within the range of 101-.

In addition, the rotating speed of the roller way 5 can be manually set, and can also be controlled and adjusted through a controller, for example, the controller can adjust the rotating speed of the roller way 5 according to the moisture content in the first microwave cracking zone 2 detected by the sensor. For example, when the cake-shaped cracking object enters the tray 6 in the first microwave cracking zone 2 through the roller table 5, the sensor may detect the water content of the cake-shaped cracking object, the controller may determine whether the cake-shaped cracking object is too wet or too dry when acquiring the water content, may determine the time required for processing the cake-shaped cracking object when the power of the first microwave source 23, the second microwave source 35, and the third microwave source 43 is minimum when the cake-shaped cracking object is too dry (for example, the water content is less than 20%), and then calculate the rotation speed of the roller table 5 based on the required time, and similarly, when the cake-shaped cracking object is too wet (for example, the water content is more than 90%), may determine the time required for processing the cake-shaped cracking object when the power of the first microwave source 23, the second microwave source 35, and the third microwave source 43 is maximum, and then calculate the rotation speed of the roller table 5 based on the required time, so that the water, organic matters, residues and the like in the cake-shaped cracking object can be quickly and efficiently treated.

In the embodiment of the utility model, when an object to be cracked is converted into a cake-shaped cracking object through the cake pressing unit, the object to be cracked can enter the first microwave cracking zone 2 through the feed inlet 1 under the action of the roller way 5 to be dehydrated, then enter the second microwave cracking zone 3 through the first baffle plate 8 to be subjected to organic matter and residual oil treatment, then enter the third microwave cracking zone 4 through the second baffle plate 9 to be subjected to residue treatment, finally, the treated clean solid is recovered and collected through the discharge outlet 7, the treated clean gas is discharged through the third gas outlet 42, and the gas generated in the whole treatment process is discharged through the first gas outlet 2 and the second gas outlet 34.

The embodiment of the utility model discloses a cracking device of a microwave roller kiln, which comprises: the device comprises a feed inlet, a first microwave cracking zone, a second microwave cracking zone, a third microwave cracking zone, a roller way, a tray and a discharge port; wherein, first microwave pyrolysis zone second microwave pyrolysis zone with third microwave pyrolysis zone set gradually in the top of roll table, the feed inlet set up in the lateral wall of first microwave pyrolysis zone, the discharge gate set up in the lateral wall of third microwave pyrolysis zone, the tray passes through the roll table set up in first microwave pyrolysis zone second microwave pyrolysis zone with in the third microwave pyrolysis zone, first microwave pyrolysis zone includes first air inlet and first gas outlet, second microwave pyrolysis zone includes condensation unit, exhaust-gas treatment unit, second fan and second gas outlet, third microwave pyrolysis zone includes second air inlet and third gas outlet. That is, the biomass, solid waste and sump oil sludge to be cracked object of the utility model can realize the purpose of processing the moisture, organic matters and residues in the object to be cracked in different temperature sections by a mode of processing through the first microwave cracking area, the second microwave cracking area and the third cracking area in sequence, thereby realizing the purpose of rapidly and efficiently cracking the biomass, solid waste and sump oil sludge to be cracked object by a mode of combining microwave active heating and passive heating, greatly improving the microwave cracking efficiency, solving the problem that the prior sump oil sludge thermal desorption harmless processing device can only process the oil-containing sludge by the modes of sump oil sludge conveying, microwave heating, condensing and tail gas processing, resulting in low processing efficiency of the sump oil sludge, having the advantages of simple structure, safety and reliability, easy operation, low cost and continuous operation, having wide application in the fields of environmental protection, petroleum and natural gas exploitation, etc., thereby greatly prolonging the service life of the cracking device of the microwave roller kiln.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The microwave roller kiln cracking device is characterized by comprising: the device comprises a feed inlet (1), a first microwave cracking zone (2), a second microwave cracking zone (3), a third microwave cracking zone (4), a roller way (5), a tray (6) and a discharge outlet (7);

wherein the first microwave cracking zone (2), the second microwave cracking zone (3) and the third microwave cracking zone (4) are sequentially arranged at the top of the roller way (5), the feed inlet (1) is arranged on the side wall of the first microwave cracking zone (2), the discharge hole (7) is arranged on the side wall of the third microwave cracking zone (4), the tray (6) is arranged in the first microwave cracking zone (2), the second microwave cracking zone (3) and the third microwave cracking zone (4) through the roller way (5), the first microwave pyrolysis zone (2) comprises a first gas inlet (21) and a first gas outlet (22), the second microwave cracking zone (3) comprises a condensing unit (31), a waste gas treatment unit (32), a second fan (33) and a second air outlet (34), the third microwave pyrolysis zone (4) comprises a second gas inlet (41) and a third gas outlet (42).

2. The microwave roller kiln cracking unit according to claim 1, characterized in that a first baffle plate (8) is arranged between the first microwave cracking zone (2) and the second microwave cracking zone (3), and a second baffle plate (9) is arranged between the second microwave cracking zone (3) and the third microwave cracking zone (4).

3. The microwave roller kiln cracking device according to claim 1, wherein a first microwave source (23) is arranged on the outer wall of the top of the first microwave cracking zone (2), the first air inlet (21) and the first air outlet (22) are respectively arranged on the top of the first microwave cracking zone (2), and a first fan is arranged at the first air inlet (21).

4. The microwave roller kiln cracking device according to claim 3, wherein a second microwave source (35) is arranged on the outer wall of the top of the second microwave cracking zone (3), the second microwave cracking zone (3) is externally connected with one end of the condensing unit (31), two ends of the waste gas treatment unit (32) are respectively connected with 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) is provided with the second gas outlet (34).

5. The microwave roller kiln cracking device according to claim 4, wherein a third microwave source (43) is arranged on the outer wall of the top of the third microwave cracking zone (4), and the second gas inlet (41) and the third gas outlet (42) are respectively arranged on the top of the third microwave cracking zone (4).

6. The microwave roller kiln cracking device according to claim 1, wherein the first microwave cracking zone (2), the second microwave cracking zone (3) and the third microwave cracking zone (4) form a microwave kiln body, the microwave kiln body is made of stainless steel, and a heat insulation layer is arranged in the microwave kiln body.

7. The microwave roller kiln cracking device according to claim 1, wherein the tray (6) is made of high temperature resistant ceramic material, a wave absorber is arranged in the tray (6), the wave absorber is made of high temperature resistant material which can absorb microwave and is easy to separate from a three-dimensional structure, and a plurality of edges and corners are distributed on the surface of the wave absorber facing the first microwave source (23).

8. The microwave roller kiln cracking unit according to claim 2, wherein the first baffle plate (8) and the second baffle plate (9) are flexible plates made of high temperature resistant and non-microwave absorbing material, respectively, and the feed port (1) is externally connected with a cake pressing unit.

9. The microwave roller kiln cracking device according to claim 5, wherein the number of the first microwave source (23), the second microwave source (35) and the third microwave source (43) is multiple and the adjacent microwave sources are vertically arranged.

10. The microwave roller kiln cracking device according to claim 6, wherein the first gas inlet (21), the first gas outlet (22), the second gas inlet (41) and the third gas outlet (42) are respectively provided with metal meshes at the joints with the microwave kiln body and are not provided with heat insulation materials.

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