阅读说明：本技术 一种基于行星搅拌协同加热的电磁感应催化炭化炉 (Electromagnetic induction catalytic carbonization furnace based on planetary stirring and heating ) 是由 齐宝金 邱伟平 蔡霞 李子安 白云 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种基于行星搅拌协同加热的电磁感应催化炭化炉,包括炉体,炉体内部设有搅拌加热棒,搅拌加热棒一端与驱动调节装置相连,所述驱动调节装置具有行星结构,包括外圈结构、偏心结构与中心结构；偏心结构位于外圈结构与中心结构之间,外圈结构与偏心结构配合,偏心结构与中心结构配合,使搅拌加热棒与炉体转向相反。本发明中,炉体与搅拌加热棒在电磁感应作用下协同发热,大幅提高物料升温速率；搅拌加热棒表面涂覆有耐磨催化膜,降低有机物炭化反应温度、提高碳化效率；搅拌加热棒在驱动调节装置的调控下与炉体反向转动,加强搅拌,使炉内物料受热更均匀且与催化膜接触更充分。(The invention discloses an electromagnetic induction catalytic carbonization furnace based on planetary stirring synergistic heating, which comprises a furnace body, wherein a stirring heating rod is arranged in the furnace body, one end of the stirring heating rod is connected with a driving adjusting device, and the driving adjusting device is of a planetary structure and comprises an outer ring structure, an eccentric structure and a central structure; the eccentric structure is positioned between the outer ring structure and the central structure, the outer ring structure is matched with the eccentric structure, and the eccentric structure is matched with the central structure, so that the stirring heating rod and the furnace body are opposite in rotation direction. In the invention, the furnace body and the stirring heating rod generate heat in a synergistic way under the action of electromagnetic induction, so that the material heating rate is greatly improved; the surface of the stirring heating rod is coated with a wear-resistant catalytic film, so that the carbonization reaction temperature of organic matters is reduced, and the carbonization efficiency is improved; the stirring heating rod rotates reversely with the furnace body under the regulation and control of the driving adjusting device, so that the stirring is enhanced, and the materials in the furnace are heated more uniformly and are contacted with the catalytic membrane more fully.)

1. An electromagnetic induction catalytic carbonization furnace based on planetary stirring and heating is characterized by comprising a furnace body, wherein a stirring heating rod is arranged in the furnace body, one end of the stirring heating rod is connected with a driving adjusting device, and the driving adjusting device is of a planetary structure and comprises an outer ring structure, an eccentric structure and a central structure; the eccentric structure is positioned between the outer ring structure and the central structure, the outer ring structure is matched with the eccentric structure, and the eccentric structure is matched with the central structure, so that the stirring heating rod and the furnace body are opposite in rotation direction.

2. The electromagnetic induction catalytic carbonization furnace based on the planetary stirring and heating coordination as claimed in claim 1, wherein the stirring heating rod has a micro-spiral structure and can heat, stir and convey materials.

3. The electromagnetic induction catalytic carbonization furnace based on planetary stirring cooperative heating as claimed in claim 1, wherein the furnace body is externally provided with an insulating layer, and an induction coil is surrounded outside the insulating layer.

4. An electromagnetic induction catalytic carbonization furnace based on planetary stirring cooperative heating as claimed in claim 3, wherein the induction coil is connected with an electromagnetic induction power regulator.

5. The electromagnetic induction catalytic carbonization furnace based on planetary stirring cooperative heating as claimed in claim 1, wherein a feeding device is arranged at the front end of the furnace body, and one end of the feeding device extends into the furnace body.

6. The electromagnetic induction catalytic carbonization furnace based on the planetary stirring cooperative heating as claimed in claim 5, wherein the rear end of the furnace body is provided with a discharging device and a rotary supporting device, and the rotary supporting device is connected with the other end of the stirring heating rod.

7. The electromagnetic induction catalytic carbonization furnace based on the planetary stirring cooperative heating as claimed in claim 6, wherein the furnace body is arranged obliquely, and the feeding device is higher than the discharging device.

8. The electromagnetic induction catalytic carbonization furnace based on planetary stirring cooperative heating as claimed in claim 1, further comprising an inclination support configured to adjust the inclination of the furnace body.

9. The electromagnetic induction catalytic carbonization furnace based on the planetary stirring cooperative heating as claimed in claim 8, wherein the inclination of the furnace body is adjusted within a range of 0 to 10 degrees.

10. The electromagnetic induction catalytic carbonization furnace based on the planetary stirring cooperative heating as claimed in claim 1, wherein the inner wall surface of the furnace body is lined with a dense ceramic coating.

Technical Field

The invention relates to the technical field of carbonization of solid salt hazardous waste with high organic matter content, in particular to an electromagnetic induction catalytic carbonization furnace based on planetary stirring and heating.

Background

It is estimated that the yield of dangerous waste is more than 3.3 hundred million tons every year in the world, and the dangerous waste is discharged within the relevant legal regulation index range in order to avoid random discharge and storage of the dangerous waste to pollute water and soil. This brings very big danger useless treatment pressure for many chemical enterprises, and danger is useless to commission outward processing expense high, and the handling capacity is limited. In particular to solid salt hazardous waste with high organic matter content which is difficult to treat.

At present, the common method is high-temperature incineration or pyrolysis, generally depends on furnace wall heating, the heat transfer efficiency is low, inorganic salt of a furnace body is basically in a molten state, and in order to ensure the safety of a hearth structure, the incineration or pyrolysis furnace generally needs to continuously operate for a long time and cannot be stopped midway, otherwise, the hearth material can be seriously damaged in the solidification process of molten salt, and the furnace needs to be overhauled and replaced. This results in uneven heating, high energy consumption and strong corrosion of molten salt to the equipment wall in the hazardous waste material treatment process. Therefore, the traditional treatment equipment not only has small operation flexibility and high ton treatment energy consumption, but also has the service life and safety influenced by the molten salt, so that the adaptability and the application field of the traditional treatment equipment are greatly limited.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides an electromagnetic induction catalytic carbonization furnace based on planetary stirring and heating. The carbonization furnace has the advantages of avoiding melting of inorganic salt, being started and stopped at any time, fully stirring materials, being uniformly heated, having high temperature rise speed and high organic matter carbonization efficiency, having good compatibility of solid materials and furnace lining coatings, short process flow and high automation degree, realizing waste heat recovery, having high energy utilization efficiency, small difficulty in tail gas treatment and the like.

In order to achieve the purpose, the invention provides the following technical scheme:

an electromagnetic induction catalytic carbonization furnace based on planetary stirring and heating comprises a furnace body, wherein a stirring heating rod is arranged in the furnace body, one end of the stirring heating rod is connected with a driving adjusting device, and the driving adjusting device is of a planetary structure and comprises an outer ring structure, an eccentric structure and a central structure; the eccentric structure is positioned between the outer ring structure and the central structure, the outer ring structure is matched with the eccentric structure, and the eccentric structure is matched with the central structure, so that the stirring heating rod and the furnace body are opposite in rotation direction.

Furthermore, the stirring heating rod is of a micro-spiral structure and can stir and convey materials.

Furthermore, a heat insulation layer is arranged outside the furnace body, and an induction coil is surrounded outside the heat insulation layer.

Further, the induction coil is connected with an electromagnetic induction power regulator.

Furthermore, a feeding device is arranged at the front end of the furnace body, and one end of the feeding device extends into the furnace body.

Furthermore, the rear end of the furnace body is provided with a discharging device and a rotating supporting device, and the rotating supporting device is connected with the other end of the stirring heating rod.

Further, the furnace body is obliquely arranged, and the feeding device is higher than the discharging device.

Further, the furnace body inclination adjusting device further comprises an inclination support which is configured to be capable of adjusting the inclination of the furnace body.

Furthermore, the inclination adjusting range of the furnace body is 0-10 degrees.

Furthermore, the inner wall surface of the furnace body is lined with a dense ceramic coating.

The invention has the beneficial effects that:

(1) the electromagnetic induction heating furnace adopts electromagnetic induction heating, uses the furnace body and the built-in stirring heating rod for heating in a synergistic manner, and has the advantages of high heating speed, high thermal efficiency, accurate temperature control, easy adjustment, capability of being started and stopped at any time and the like.

(2) The invention adopts the micro-spiral stirring heating rod coated with the catalytic carbonization film on the surface, plays the functions of stirring, heating and material conveying, simultaneously reduces the carbonization reaction temperature, avoids the melting of inorganic salt, reduces the emission of harmful tail gas and improves the treatment efficiency of solid hazardous waste.

(3) The invention adopts the driving adjusting device with the planet structure, the rotation direction of the stirring heating rod is opposite to the rotation direction of the furnace body, the stirring is enhanced, so that the materials are uniformly heated and are more fully contacted with the catalytic membrane, and the carbonization efficiency of organic matters can be greatly improved.

(4) The invention adopts the solid waste heat recovery device, fully utilizes the heat contained in the treated materials, carries out pre-heating treatment on the solid hazardous waste raw materials and has high energy utilization efficiency.

(5) The invention does not use fuel, has oxygen-free carbonization, short process flow, high automation degree, easy maintenance, less harmful substances in tail gas and low treatment difficulty.

Drawings

FIG. 1 is a schematic view of a structure of a carbonization furnace of the present invention.

Fig. 2 is a schematic view of a driving adjustment device having a planetary structure in the present invention.

Fig. 3 is a schematic view of a stirring heating rod in the present invention.

Reference numbers in the figures: the device comprises a furnace body 1, a heat preservation layer 2, an induction coil 3, an electromagnetic induction power regulator 4, a stirring heating rod 5, a driving regulating device 6, a rotating supporting device 7, a feeding device 8, a discharging device 9, a carbonization tail gas recovery system 10, a solid waste heat recovery device 11, a hazardous waste feeding pipeline 12, a discharging pipeline 13 and a catalytic carbonization film 5 a; outer ring structure 6a, eccentric structure 6b, central structure 6 c.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Reference herein to "a plurality" means greater than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

As shown in fig. 1-2, an electromagnetic induction catalytic carbonization furnace based on planetary stirring synergistic heating comprises a furnace body 1, a stirring heating rod 5 is arranged inside the furnace body 1, one end of the stirring heating rod 5 is connected with a driving adjusting device 6, the driving adjusting device can drive the stirring rod to rotate, and the driving adjusting device 6 has a planetary structure and comprises an outer ring structure 6a, an eccentric structure 6b and a central structure 6c, as shown in fig. 2; the eccentric structure 6b is located between the outer ring structure 6a and the central structure 6c, the outer ring structure 6a is matched with the eccentric structure 6b, and the eccentric structure 6b is matched with the central structure 6c, wherein the matching can be gear meshing or other matching, and the two adjacent structures can rotate relatively. In some preferred modes, the outer ring structure 6a and the furnace body 1 rotate in the same direction, the central structure 6c and the stirring heating rod 5 rotate in the same direction, and the stirring heating rod 5 and the furnace body 1 rotate in opposite directions to enhance stirring and heat uniformly. In some preferred modes, the driving and adjusting device further comprises a motor which can drive the furnace body to rotate. In some preferred modes, the furnace body is fixedly connected with an outer ring structure of the driving adjusting device, and one end of the stirring heating rod 5 is connected with the central structure; the outer ring structure of the driving adjusting device rotates (the furnace body rotates), the eccentric structure rotates, the central structure rotates, and the stirring heating rod rotates, namely, the driving adjusting device can indirectly control the stirring heating rod to revolve, so that the direction of the stirring heating rod is opposite to that of the furnace body. In this application, rotate through the drive furnace body, make stirring heating rod rotate, and its rotation direction is opposite with furnace body rotation direction.

In some preferred modes, as shown in fig. 3, the stirring heating rod 5 has a micro-spiral structure, and can stir and convey materials. Further, in the present application, the micro-helix structure refers to: the pitch is larger than the diameter of revolution, and the number of turns is less than one turn, so that the micro-helix is realized. Compared with the spiral structure in the prior art, the micro-spiral structure is easy to process and install, enables materials to be better close to the wall surface and assists the materials to slide, and can fully and uniformly stir and heat the materials.

When concrete implementation, stirring heating rod 5 is close to 1 internal face of furnace body, can exert tangential force and axial force to the material during operation, plays stirring and defeated material effect, and 5 surface coating of stirring heating rod have catalytic carbonization membrane 5a, can reduce the carbomorphism reaction temperature, avoid inorganic salt melting, reduce the emission of carbomorphism tail gas, improve the useless treatment effeciency of solid danger.

In some preferred modes, the furnace body 1 is externally provided with an insulating layer 2, and an induction coil 3 is surrounded outside the insulating layer 2. In some preferred modes, an induction coil 3 is wound around the outer part of the heat insulation layer 2 in a whole body gap mode, and in some preferred modes, the induction coil 3 is connected with an electromagnetic induction power regulator 4.

In some preferred modes, as shown in fig. 1, a feeding device is arranged at the front end of the furnace body 1, one end of the feeding device penetrates through the driving adjusting device 6 to extend into the furnace body 1, and materials are fed into the furnace body.

In some preferred modes, the rear end of the furnace body is provided with a discharging device and a rotating supporting device 7, and the rotating supporting device 7 is connected with the other end of the stirring heating rod 5. In some preferred modes, an upper outlet of the discharging device 9 is connected with the carbonization tail gas recovery system 10, a lower outlet of the discharging device 9 is connected with the solid waste heat recovery device 11, the front part of the solid waste heat recovery device 11 is connected with the feeding device 8, the front part of the solid waste heat recovery device 11 is connected with the hazardous waste feeding pipeline 12, and the rear part of the solid waste heat recovery device 11 is connected with the discharging pipeline 13. The carbonized solid dangerous waste enters a solid waste heat recovery device 11 and can be used as a heat source to preheat the non-carbonized solid dangerous waste; meanwhile, when the non-carbonized solid hazardous waste enters the solid waste heat recovery device 11, the solid waste heat recovery device can be used as a cold source to cool the carbonized solid hazardous waste. Thus, solid heat exchange can be realized, and the waste heat is fully utilized to preheat the feeding material. In some preferred modes, the solid waste heat recovery device 11 is of an inner sleeve structure and an outer sleeve structure, the discharge pipeline is located at the inner ring cylinder structure, and the feed pipeline is located at the outer ring.

In some preferred modes, the furnace body 1 is obliquely arranged, and the feeding device 8 is higher than the discharging device 9. In some preferred modes, the furnace body further comprises an inclination bracket, the inclination bracket is connected with the furnace body 1, and the inclination of the furnace body 1 can be adjusted. In some preferred modes, the inclination of the furnace body 1 is adjusted within the range of 0 to 10 degrees. According to different lag angles of different materials, the retention time of the different materials in the furnace body can be ensured by adjusting the inclination and the rotating speed of the motor, and the carbonization effect is ensured.

In some preferred modes, the furnace body 1 and the stirring heating rod 5 generate heat in a cooperative mode, the furnace body and the stirring heating rod are made of nickel-based alloy, and the inner wall surface of the furnace body 1 is lined with a compact ceramic coating and is corrosion-resistant. The nickel-based alloy does not react at the temperature of carbonization of the solid salt hazardous waste.

In some preferred modes, seal structure is equipped with at the front and back both ends of furnace body 1, and when the inside carbomorphism of furnace body 1 was wasted to the solid danger, realized the self sealss at furnace body 1 both ends, guaranteed oxygen-insulated carbomorphism environment, avoided the production of a large amount of harmful substance such as dioxin.

During operation, solid dangerous waste enters the solid waste heat recovery device 11 to be preheated, enters the furnace body through the feeding device 8, and moves to the discharging device 9 under the combined action of the inclined rotation of the furnace body 1 and the stirring of the stirring heating rod 5. Because of the electromagnetic induction principle, there is the vortex production on furnace body 1 and stirring heating rod 5 surface, and then there is the heat to the material heating that adheres to in furnace body 1 internal wall and stirring heating rod 5 surface. Along with the rise of the temperature, under the catalytic action of the catalytic carbonization film 5a on the surface of the stirring heating rod 5, the organic matters in the hazardous waste are decomposed, carbonized or gasified to form metal oxides and inorganic salts. The carbonization tail gas generated in the carbonization process enters a carbonization tail gas recovery system 10 through an upper outlet of the discharging device 9, and the treated material enters a solid waste heat recovery device 11 through a lower outlet of the discharging device 9 and is used as a heat source for pre-treatment of solid hazardous waste to realize waste heat recovery and utilization.

The device is adopted to carry out carbonization treatment on 5 kilograms of solid waste and hazardous waste formed by evaporative crystallization of the high-salt organic waste liquid, the power is 40kW, the temperature is controlled to be 500-700 ℃, and the organic matters in the solid are decomposed and gasified below the melting point of inorganic salt. The furnace body 1 and the stirring heating rod 5 rotate to fully mix, stir and heat the solid hazardous waste for 120-200 seconds, so that the solid hazardous waste is dehydrated and generates carbonization reaction, organic salt is decomposed into carbon monoxide, water and inorganic salt, and molten salt is not generated. The inorganic salt with the temperature of 450-600 ℃ enters the solid waste heat recovery device to be used as a heat source to preheat untreated solid hazardous waste, and the solid hazardous waste can be preheated to 150-200 ℃. Through detection, the COD of the solid dangerous waste before treatment is 7652mg/L after dissolution, and the COD of the inorganic salt after treatment is 17mg/L after dissolution.

According to the embodiment, the electromagnetic induction catalytic carbonization furnace based on the planetary stirring and synergistic heating can efficiently and quickly reduce the COD of the solid hazardous waste, so that the organic matters in the waste are decomposed and removed, the COD is reduced by 99.8%, and the decomposition removal rate of the organic matters reaches over 99.5%. Under the process of synergistic stirring heating and waste heat recovery, 5 kilograms of solid hazardous waste is carbonized to consume about 1.33 kilowatt hours of electric energy, is converted into 266 kilowatt hours of energy consumption per ton, is converted into 266 yuan for treating per ton of solid hazardous waste, is generally converted into 6000 to 10000 yuan for treating hazardous waste outside the unit, and saves more than 95% of cost in comparison, so that the electromagnetic induction catalytic carbonization furnace with the planetary stirring synergistic heating has very high economic value.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. 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.