Novel efficient waste rubber and plastic electromagnetic heating cracking system

Abstract

The utility model provides a novel efficient waste rubber and plastic electromagnetic heating cracking system, which belongs to the technical field of solid waste recovery, and comprises a reaction kettle and a plurality of electromagnetic heating components, the plurality of electromagnetic heating components are sleeved on the reaction kettle at intervals, each electromagnetic heating component comprises a support, an electromagnetic heating coil and a plurality of heat dissipation pieces, a cavity is formed in the bracket, and the cavity is arranged on the reaction kettle in a sleeving manner; the electromagnetic heating coil is wound and arranged on the inner wall of the cavity along the axial direction of the cavity; and the plurality of heat dissipation pieces are arranged on the bracket. The waste rubber and plastic thermal cracking furnace solves the technical problems of low heating efficiency, environmental pollution and human body harm caused by the existing waste rubber and plastic thermal cracking heating mode, and has the characteristics of high heating efficiency, safety, environmental protection, capability of prolonging the service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid waste recovery, and in particular relates to a novel high-efficiency electromagnetic heating cracking system for waste rubber and plastic. Background Art

[0002] With the acceleration of industrialization, the number of automobiles manufactured is increasing, and the frequency of replacing motor vehicles is also increasing. Take China as an example. There is no doubt that my country is a major automobile producer. As one of the indispensable parts of automobiles, the tire industry will also develop with the development of the automobile industry. In recent years, China has experienced rapid growth in the field of tire manufacturing, and the output of my country's tires currently ranks among the top in the world.

[0003] At the same time, the consumption and wear of automobile tires also generate a lot of garbage - waste rubber and plastic. The definition of waste rubber and plastic includes not only old tires replaced from motor vehicles that have lost their use value, but also discarded tires that do not meet the standards when they were first produced in the factory.

[0004] Therefore, in order to prevent these waste rubber and plastics from becoming industrial waste and to turn them into treasure, the current solution is to subject them to thermal cracking. Thermal cracking of waste rubber and plastics refers to an irreversible thermochemical reaction in an oxygen-free or oxygen-deficient atmosphere, using high temperature to crack the organic matter in the waste rubber and plastics, escaping volatile products and forming solid coke. Gas, liquid and solid products can be formed during the incomplete thermal degradation process. This method can completely crack waste rubber and plastics into useful products such as cracking oil, cracking carbon black and cracking gas.

[0005] At present, the existing waste rubber and plastic pyrolysis heating methods mainly use heating methods such as fuel oil and gas, which not only have low heating efficiency, but also cause air pollution due to the large amount of fuel oil and fuel used. Common fuel types include fossil fuels (coal, oil and natural gas) and wood fuels. Combustion will release a large amount of carbon monoxide, carbon dioxide, sulfur dioxide and inhalable particulate matter. The carbon dioxide produced will produce a greenhouse effect, which is not conducive to the sustainable development of the environment. After sulfur dioxide reacts with water, it is easy to form acid rain, which can corrode buildings, destroy plants, and acidify the soil. Carbon monoxide is toxic and can easily poison people. Inhalable particulate matter can also cause harm to the human body. Therefore, the traditional heating method not only has low heating efficiency, but also causes environmental pollution and certain harm to the human body. Utility Model Content

[0006] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0007] The utility model proposes a novel high-efficiency electromagnetic heating cracking system for waste rubber and plastic, which solves the technical problems of low heating efficiency, environmental pollution and human harm caused by the existing waste rubber and plastic thermal cracking heating method, and has the characteristics of high heating efficiency, safety and environmental protection, and can increase service life.

[0008] The utility model discloses a novel high-efficiency electromagnetic heating cracking system for waste rubber and plastic, comprising a reactor and a plurality of electromagnetic heating components, wherein the plurality of electromagnetic heating components are sleeved on the reactor at intervals, the electromagnetic heating components comprising a bracket, an electromagnetic heating coil and a plurality of heat sinks, wherein a cavity is provided in the bracket, and the cavity is sleeved on the reactor; the electromagnetic heating coil is wound and arranged on the inner wall of the cavity along the axial direction of the cavity; and the plurality of heat sinks are arranged on the bracket.

[0009] In some embodiments, the bracket includes an upper bracket and a lower bracket, an upper cavity is provided at one end of the upper bracket, and a plurality of heat dissipation elements are provided on the upper bracket; a lower cavity is provided at one end of the lower bracket, and the lower cavity is connected to the upper cavity to form the cavity, and a plurality of heat dissipation elements are provided on the lower bracket.

[0010] In some of the embodiments, a heat preservation cover is further included, which is sleeved on the reaction kettle and located between the reaction kettle and the electromagnetic heating component.

[0011] In some embodiments, the distance between the outer wall of the heat preservation cover and the electromagnetic heating coil is 15 mm to 20 mm.

[0012] In some of the embodiments, it also includes a buffer bin, an automatic metering belt scale, a feeding self-sealing screw machine and a front sealing bin which are connected in sequence, and the front sealing bin is connected to one end of the reactor.

[0013] In some of the embodiments, a drop pipe is provided between the discharge port of the automatic metering belt scale and the feed port of the feeding self-sealing screw machine, and a corrugated compensator is provided on the drop pipe.

[0014] In some of the embodiments, it also includes a rear sealed bin and a slag discharge self-sealing screw machine, the rear sealed bin is connected to the other end of the reactor, the rear sealed bin is provided with an oil vapor outlet and a slag discharge port; the slag discharge self-sealing screw machine is connected to the slag discharge port.

[0015] In some of the embodiments, a primary condenser and a secondary condenser are further included, wherein the primary condenser is connected to the oil vapor outlet via an oil vapor delivery pipeline, and the secondary condenser is connected to the primary condenser.

[0016] In some of the embodiments, a cooling oil storage tank is further included, and the cooling oil storage tank is connected to the secondary condenser through a cooling oil drop pipe.

[0017] In some of the embodiments, a plurality of electromagnetic control cabinets are further included, and the plurality of electromagnetic control cabinets are connected to the plurality of electromagnetic heating components in a one-to-one correspondence.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model adopts electromagnetic heating to heat and pyrolyze the reaction kettle by setting an electromagnetic heating component. The electromagnetic heating adopts the principle of electromagnetic radiation and has the characteristics of fast heating, high thermal efficiency, no open flame, no smoke and no harmful gas.

[0020] 2. The utility model adopts electromagnetic heating, which has the advantages of not generating heat radiation to the surrounding environment, small size, good safety and beautiful appearance.

[0021] 3. The utility model adopts electromagnetic heating to heat the reactor, the heating efficiency can reach more than 85%, the heating speed is very fast, and the heating temperature can be effectively controlled.

[0022] 4. The utility model adopts electromagnetic heating, which will not produce open flames, and can minimize the increase in ambient temperature caused by heat radiation. Similarly, since there is no need for combustion, it will not consume indoor oxygen, nor will it produce carbon monoxide, inhalable particulate matter, etc., which will cause certain harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 A schematic diagram of the structure of a novel high-efficiency waste rubber and plastic electromagnetic heating cracking system provided by an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of an electromagnetic heating assembly provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the upper bracket provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of the lower bracket provided by an embodiment of the utility model;

[0028] In the above figures: 1-reactor; 2-electromagnetic heating component; 201-bracket; 2011-upper bracket; 2012-lower bracket; 202-electromagnetic heating coil; 203-heat sink; 204-cavity; 2041-upper cavity; 2042-lower cavity; 3-insulation cover; 4-buffer silo; 5-automatic metering belt scale; 6-feeding self-sealing screw machine; 7-front sealing bin; 8-feeding pipe; 9-corrugated compensator; 10-rear sealing bin; 11-oil steam outlet; 12-slag outlet; 13-slag self-sealing screw machine; 14-oil steam delivery pipeline; 15-primary condenser; 16-secondary condenser; 17-cooling oil drop pipe; 18-cooling oil storage tank; 19-electromagnetic control cabinet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] The utility model embodiment provides a new type of high-efficiency waste rubber and plastic electromagnetic heating cracking system, referring to Figures 1 to 4As shown, the system at least includes a reactor 1 and a plurality of electromagnetic heating components 2, wherein the plurality of electromagnetic heating components 2 are sleeved on the reactor 1 at intervals, and the electromagnetic heating components 2 include a bracket 201, an electromagnetic heating coil 202 and a plurality of heat sinks 203, wherein a cavity 204 is provided in the bracket 201, and the cavity 204 is sleeved on the reactor 1; the electromagnetic heating coil 202 is wound and arranged on the inner wall of the cavity 204 along the axial direction of the cavity 204; and a plurality of heat sinks 203 are provided on the bracket 201. The utility model adopts electromagnetic heating to heat and pyrolyze the reactor by setting an electromagnetic heating component 2. The electromagnetic heating adopts the principle of electromagnetic radiation and has the characteristics of fast heating, high thermal efficiency, no open flame, no smoke and dust, and no harmful gas. The electromagnetic heating method has the advantages of not generating heat radiation to the surrounding environment, small size, good safety and beautiful appearance. The electromagnetic heating method is used to heat the reactor, and the heating efficiency can reach more than 85%, the heating speed is very fast, and the heating temperature can be effectively controlled. The electromagnetic heating method does not generate open flames, which can minimize the increase in ambient temperature caused by thermal radiation. Similarly, since there is no need for combustion, it will not consume indoor oxygen, and will not generate carbon monoxide, inhalable particulate matter, etc., which may cause certain harm to the human body.

[0032] In some embodiments, in order to further improve the efficiency of electromagnetic heating, the electromagnetic heating coil 202 uses a high-temperature electromagnetic heating coil. In order to extend the service life of the electromagnetic heating component, the bracket 201 uses insulating bakelite. In order to effectively prevent the electromagnetic heating component 2 from expanding during the heating process, multiple electromagnetic heating components 2 are designed and are arranged on the reactor 1 at intervals. The number of electromagnetic heating components 2 can be set according to the length of the reactor 1, and the spacing between two adjacent electromagnetic heating components 2 is 200mm to 300mm.

[0033] In some embodiments, in order to facilitate real-time detection of the temperature inside the electromagnetic heating component 2, a temperature sensor is provided on each electromagnetic heating component 2.

[0034] Further, the bracket 201 includes an upper bracket 2011 and a lower bracket 2012, an upper cavity 2041 is provided at one end of the upper bracket 2011, and a plurality of heat sinks 203 are provided on the upper bracket 2011; a lower cavity 2042 is provided at one end of the lower bracket 2012, the lower cavity 2042 is connected with the upper cavity 2041 to form a cavity 204, and a plurality of heat sinks 203 are provided on the lower bracket 2012. In order to facilitate the installation and disassembly of the electromagnetic heating component 2, the utility model divides the bracket 201 into upper and lower parts, which are sleeved on the reactor 1 by assembly, and a plurality of heat sinks 203 are respectively provided on the upper bracket 2011 and the lower bracket 2012, which is more conducive to the heat dissipation of the internal electromagnetic heating coil 202.

[0035] In some embodiments, the heat sink 203 is a heat dissipation fan. Two heat dissipation fans are symmetrically arranged on one side of the upper bracket 2011 , and two heat dissipation fans are symmetrically arranged on one side of the lower bracket 2012 .

[0036] Furthermore, the novel high-efficiency waste rubber and plastic electromagnetic heating cracking system further includes a heat preservation cover 3, which is sleeved on the reactor 1 and located between the reactor 1 and the electromagnetic heating assembly 2. In order to prevent heat loss in the reactor 1 and maintain a stable temperature in the reactor 1, so as to improve the efficiency and stability of the reaction process and reduce the influence of temperature fluctuations on cracking products, the utility model sleeves the heat preservation cover 3 on the reactor 1.

[0037] Furthermore, the distance between the outer wall of the heat preservation cover 3 and the electromagnetic heating coil 202 is 15 mm to 20 mm. In order to ensure that the thermal reactor 1 does not interfere with or collide with the electromagnetic heating coil 202 during rotation, a certain distance is set between the outer wall of the heat preservation cover 3 and the electromagnetic heating coil 202.

[0038] Furthermore, the novel high-efficiency waste rubber and plastic electromagnetic heating cracking system also includes a buffer bin 4, an automatic metering belt scale 5, a feeding self-sealing screw machine 6 and a front sealing bin 7 which are connected in sequence, and the front sealing bin 7 is connected to one end of the reactor 1.

[0039] The utility model can effectively control the amount of material entering by setting up a buffer bin 4. In some embodiments, an upper material level meter is provided on the upper portion of the buffer bin 4, and a lower material level meter is provided on the lower portion of the buffer bin 4. The content of the material in the buffer bin 4 can be monitored in real time. By setting up a feeding self-sealing screw machine 6, in some embodiments, a spiral blade is provided in the feeding self-sealing screw machine 6, and the material is pushed forward into the front sealing bin 7 by the spiral blade. The provision of the spiral blade is more conducive to the transportation of the material.

[0040] In some embodiments, in order to detect the temperature at the front end of the reactor 1 , a temperature sensor is provided on the front sealing chamber 7 .

[0041] Furthermore, a drop pipe 8 is provided between the discharge port of the automatic metering belt scale 5 and the feed port of the feed self-sealing screw machine 6, and a corrugated compensator 9 is provided on the drop pipe 8. In order to compensate for the displacement of the reactor 1 caused by thermal expansion, the utility model provides a corrugated compensator 9 on the drop pipe 8.

[0042] Furthermore, the new high-efficiency electromagnetic heating cracking system for waste rubber and plastic also includes a rear sealed bin 10 and a slag discharge self-sealing screw machine 13. The rear sealed bin 10 is connected to the other end of the reactor 1. The rear sealed bin 10 is provided with an oil vapor outlet 11 and a slag discharge port 12; the slag discharge self-sealing screw machine 13 is connected to the slag discharge port 12.

[0043] In some embodiments, in order to detect the temperature at the rear end of the reactor 1 , a temperature sensor is provided on the rear sealed chamber 10 , and in order to control the pressure in the reactor 1 , a pressure sensor is provided on the rear sealed chamber 10 .

[0044] Furthermore, the novel high-efficiency waste rubber and plastic electromagnetic heating cracking system also includes a primary condenser 15 and a secondary condenser 16 . The primary condenser 15 is connected to the oil vapor outlet 11 through an oil vapor delivery pipeline 14 , and the secondary condenser 16 is connected to the primary condenser 15 .

[0045] Furthermore, the novel high-efficiency waste rubber and plastic electromagnetic heating cracking system further includes a cooling oil storage tank 18, which is connected to the secondary condenser 16 via a cooling oil drop pipe 17. In order to make the oil vapor cool more fully, the utility model is provided with a primary condenser 15 and a secondary condenser 16. After the oil vapor is sufficiently cooled, the cooling oil is passed through the cooling oil drop pipe 17 into the cooling oil storage tank 18 for storage.

[0046] Furthermore, the novel high-efficiency waste rubber and plastic electromagnetic heating cracking system further comprises a plurality of electromagnetic control cabinets 19, and the plurality of electromagnetic control cabinets 19 are connected one-to-one with the plurality of electromagnetic heating components 2. The utility model sets the number of electromagnetic control cabinets 19 to correspond one-to-one with the number of electromagnetic heating components 2, and effectively controls the start and stop of the electromagnetic heating components 2 through the electromagnetic control cabinets 19.

[0047] In some embodiments, by setting up an electromagnetic control cabinet 19, the electromagnetic heating coil 202 is connected from the electromagnetic control cabinet 19, enters from the left side of the bracket 201, is wound around the inner wall of the cavity 204, connected from the right side of the bracket 201, and then enters the electromagnetic control cabinet 19 to form a loop.

[0048] The working process of the above-mentioned new type of high-efficiency waste rubber and plastic electromagnetic heating pyrolysis system is as follows:

[0049] A plurality of electromagnetic heating components 2 and the entire thermal cracking system are started through a plurality of electromagnetic control cabinets 19, and the reactor 1 is heated by the electromagnetic heating component 2. At this time, the material enters the automatic metering belt scale 5 through the buffer silo 4, and after weighing, the material is transported to the drop pipe 8 through the conveyor belt in the automatic metering belt scale 5, and then transported to the front sealed bin 7 through the feeding self-sealing screw machine 6, so that the material enters the reactor 1 through the front sealed bin 7 for thermal cracking, and the cracking products generated after the thermal cracking enter the rear sealed bin 10, and the cracking products are separated in the rear sealed bin 10, wherein the cracking carbon black enters the slag self-sealing screw machine 13 through the slag outlet, and the cracking oil vapor enters the oil vapor conveying pipeline 14 through the oil vapor outlet, and then enters the primary condenser 15 and the secondary condenser 16 for sufficient cooling, and the obtained cooling oil enters the cooling oil storage tank 18 through the cooling oil drop pipe 17, thereby completing the thermal cracking process of the entire new high-efficiency waste rubber and plastic electromagnetic heating cracking system.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic, characterized in that: include: Reactor; A plurality of electromagnetic heating components are spaced apart and sleeved on the reactor, and the electromagnetic heating components include: A bracket, wherein a cavity is provided in the bracket, and the cavity is sleeved on the reactor; An electromagnetic heating coil is arranged and wound around the inner wall of the cavity along the axial direction of the cavity; A plurality of heat dissipating elements are arranged on the bracket.

2. The novel high-efficiency waste rubber and plastic electromagnetic heating pyrolysis system according to claim 1 is characterized in that: The support comprises: An upper bracket, one end of which is provided with an upper cavity, and a plurality of heat sinks are provided on the upper bracket; A lower bracket, one end of which is provided with a lower cavity, the lower cavity is connected with the upper cavity to form the cavity, and a plurality of heat sinks are provided on the lower bracket.

3. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 1 is characterized in that: It also includes a heat-insulating cover, which is sleeved on the reaction kettle and located between the reaction kettle and the electromagnetic heating component.

4. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 3 is characterized in that: The distance between the outer wall of the heat-insulating cover and the electromagnetic heating coil is 15 mm to 20 mm.

5. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 1 is characterized in that: It also includes a buffer bin, an automatic metering belt scale, a feeding self-sealing screw machine and a front sealing bin which are connected in sequence, and the front sealing bin is connected to one end of the reactor.

6. The novel high-efficiency waste rubber and plastic electromagnetic heating pyrolysis system according to claim 5 is characterized in that: A drop pipe is provided between the discharge port of the automatic metering belt scale and the feed port of the feeding self-sealing screw machine, and a corrugated compensator is provided on the drop pipe.

7. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 1 is characterized in that: Also includes: A rear sealed bin, which is connected to the other end of the reactor and is provided with an oil vapor outlet and a slag outlet; A slag discharging self-sealing screw machine is connected to the slag discharging port.

8. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 7 is characterized in that: It also includes a primary condenser and a secondary condenser. The primary condenser is connected to the oil vapor outlet through an oil vapor delivery pipeline, and the secondary condenser is connected to the primary condenser.

9. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 8 is characterized in that: It also includes a cooling oil storage tank, which is connected to the secondary condenser through a cooling oil drop pipe.

10. The novel high-efficiency electromagnetic heating pyrolysis system for waste rubber and plastic according to claim 1 is characterized in that: It also includes a plurality of electromagnetic control cabinets, and the plurality of electromagnetic control cabinets are connected to the plurality of electromagnetic heating components in a one-to-one correspondence.

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