CN212076950U - Safe, environment-friendly and cost-saving waste rubber and plastic cracking equipment - Google Patents
Safe, environment-friendly and cost-saving waste rubber and plastic cracking equipment Download PDFInfo
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- CN212076950U CN212076950U CN202020609638.6U CN202020609638U CN212076950U CN 212076950 U CN212076950 U CN 212076950U CN 202020609638 U CN202020609638 U CN 202020609638U CN 212076950 U CN212076950 U CN 212076950U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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Abstract
The utility model relates to a safe, environment-friendly and cost-saving waste rubber and plastic cracking device, which comprises a feeding device, a cracking device, a heating device and a discharging device, wherein the cracking device comprises a cracking furnace, the heating device comprises a heat-conducting molten salt heater, a heat-conducting molten salt tank and a cracking furnace jacket arranged on the cracking furnace; the heat-conducting molten salt heater can heat the heat-conducting molten salt in the heat-conducting molten salt tank; the discharge port of the feeding device is communicated with the feed port of the cracking furnace, the discharge port of the cracking furnace is communicated with the discharge device, and the heat-conducting molten salt tank is connected into the jacket of the cracking furnace through an input pipeline; wherein the feeding device, the cracking device and the discharging device are communicated in an air-lock manner; the feeding device comprises a furnace entering stranding cage, and blades of the furnace entering stranding cage gradually narrow along the conveying direction. Guarantee the gas tightness between feed arrangement and the cracker, prevent that outside air from getting into the pyrolysis furnace from feed arrangement that can be better, when promoting product output and reduce pollution output, improve the security performance of equipment.
Description
Technical Field
The utility model relates to a useless rubber and plastic cracking equipment, in particular to safe environmental protection and cost-effective useless rubber and plastic cracking equipment.
Background
Because of the increasing environmental pollution and sanitary problems derived from waste rubber and plastic products (collectively referred to as waste rubber and plastic), the thermal cracking of waste rubber and plastic to produce usable substances is one of the most ideal methods for solving the above problems. The waste rubber and plastic can be heated and cracked in the airlock container to generate useful substances such as cracked oil, gas, carbon black and the like for recycling.
The process of waste rubber and plastic heating cracking needs to be carried out in a closed container of an air lock, the problems of solid gas pollution, safety hazard and the like can be avoided, because the prior common waste rubber and plastic thermal cracking technology adopts high-temperature hot gas heating rotary type barrel cracking furnace with the temperature of more than 700 ℃, the furnace wall in the cracking furnace is easy to cause waste rubber and plastic coking to obstruct heat transfer due to high temperature, the cracking effect is reduced, the diameter of the barrel cracking furnace is large, the rotary operation mode cannot effectively realize the air lock, if the continuous operation mode is adopted, a large amount of gas leakage can cause pollution and safety problems, the batch operation mode can only be adopted, but after each batch of cracking is finished, the barrel cracking furnace needs to be cooled, then the cover is opened to clean carbon deposit and waste rubber and plastic raw materials are added, and thus, the.
Most of the existing waste rubber and plastic heating cracking is carried out by burning fuel to generate high-temperature hot gas, the efficiency of heating cracking is reduced due to the extremely low heating efficiency difference of hot gas specific heat and easy coking of furnace walls, the efficiency and the product quality can be increased only by adopting higher-temperature hot gas for improving the efficiency, but the high temperature can cause damage to a metal cracking furnace, and the like, so that a lot of production and equipment costs are increased.
In addition, the existing thermal cracking equipment has poor air lock performance, mainly the air lock performance at the feeding device and the discharging device is poor, external air easily enters the cracking furnace, the external air enters the cracking furnace to cause product combustion, the pollution amount is increased by reducing the output of finished products, and great potential safety hazards also exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of above-mentioned prior art existence, provide a safe environmental protection and cost-effective useless rubber and plastic cracking equipment.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a safe, environment-friendly and cost-saving waste rubber and plastic cracking device comprises a feeding device, a cracking device, a heating device and a discharging device, wherein the cracking device comprises a cracking furnace, and the heating device comprises a heat-conducting molten salt heater, a heat-conducting molten salt tank and a cracking furnace jacket arranged on the cracking furnace; the heat-conducting molten salt heater can heat the heat-conducting molten salt in the heat-conducting molten salt tank;
the discharge hole of the feeding device is communicated with the feed hole of the cracking furnace, the discharge hole of the cracking furnace is communicated with the discharge device, and the heat-conducting molten salt tank is connected into the jacket of the cracking furnace through an input pipeline; wherein the feeding device, the cracking device and the discharging device are communicated in an air-lock manner; the feeding device comprises a furnace entering stranding cage, and blades of the furnace entering stranding cage gradually narrow along the conveying direction.
The utility model has the advantages that: the blades entering the furnace stranding cage gradually narrow along the conveying direction, so that the air tightness between the feeding device and the cracking device is ensured, external air can be better prevented from entering the cracking furnace from the feeding device, the energy consumption is reduced, and the safety performance of equipment is improved;
the feeding device, the cracking device and the discharging device are communicated in an air lock mode, the waste rubber and plastic maintains an air lock state after entering the feeding device, the continuous operation of the air lock is adopted, the thermal cracking function of safety, environmental protection and cost saving is realized by utilizing heat-conducting molten salt, and the cracking operation cost can be greatly reduced.
Furthermore, the discharging device is an obliquely arranged discharging stranding cage, and the discharging stranding cage is obliquely arranged upwards.
The beneficial effect of adopting the further technical scheme is that: by the inclined arrangement of the discharging stranding cage, the discharging end of the discharging stranding cage is higher than the feeding end, so that the air tightness between the discharging device and the cracking furnace is ensured, the external air can be better prevented from entering the cracking furnace from the discharging device, the waste rubber and plastic fragments are cracked in an oxygen-free (or oxygen-poor) state, the energy consumption is reduced, and the potential safety hazard can be reduced.
Furthermore, an oil gas outlet is also arranged on the cracking furnace for discharging oil gas generated by cracking the waste rubber and plastic.
The beneficial effect of adopting the further technical scheme is that: when the waste rubber and plastic are cracked in the cracking furnace, oil gas is produced and can be discharged from the oil gas outlet.
Furthermore, the cracking device also comprises a frequency modulation motor which is used for adjusting the propelling speed of the cracking furnace.
Further, a spiral blade is arranged in the cracking furnace, and the frequency modulation motor can drive the spiral blade to rotate so as to convey materials out; avoid coking of waste rubber and plastic to block heat transfer due to high temperature, and improve cracking effect.
Furthermore, the feeding device also comprises a receiving port, and the receiving port is arranged at the position of the feeding port of the furnace entering stranding cage.
Further, the heating device further comprises a heat-conducting molten salt pump, the heat-conducting molten salt is a mixture of sodium nitrite (40%)/sodium nitrate (7%)/potassium nitrate (53%), the heat-conducting molten salt 941 is heated to 480 ℃ by a heat-conducting molten salt heater 943 and then is pumped into an input pipeline 945 through a heat-conducting molten salt pump 944 to enter a cracking furnace jacket 923 for heating, and the cooled heat-conducting molten salt 941 returns to a heat-conducting molten salt tank 942 through an output pipeline 946 to be heated again, so that the cyclic heating of the cracking furnace is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic connection diagram of the present invention;
FIG. 3 is a flow chart of the present invention;
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1-3, a safe, environment-friendly and cost-effective waste rubber and plastic cracking apparatus comprises a feeding device 91, a cracking device 92, a heating device 94 and a discharging device 93, wherein the feeding device 91, the cracking device 92 and the discharging device 93 are in air-lock communication, the cracking device 92 comprises a cracking furnace 921, and the heating device 94 comprises a heat-conducting oil heater 943, a heat-conducting oil tank 942 and a cracking furnace jacket 923 arranged on the cracking furnace 921; the heat-conducting oil heater 943 can heat the heat-conducting oil 941 in the heat-conducting oil tank 942;
the feeding device comprises a furnace entering stranding cage 912, and blades of the furnace entering stranding cage 912 gradually narrow along the conveying direction; the blades of the furnace entry stranding cage 912 comprise a front wide blade 914 and a rear narrow blade 915; the feeding device further comprises a receiving opening 913, the receiving opening 913 is arranged at the feeding opening of the furnace charging stranding cage, the waste rubber and plastic 911 falls from the receiving opening 913, enters the stranding cage through the feeding opening of the furnace charging stranding cage, enters the cracking furnace 921 from the discharging opening 916 of the furnace charging stranding cage and the feeding opening 922 of the cracking furnace, and the discharging opening 926 of the cracking furnace is communicated with the discharging device 93;
the heat-conducting molten salt 941 is connected into the cracking furnace jacket 923 through an input pipeline 945; the heat-conducting molten salt pump 944 is arranged on the input pipeline 945, the heat-conducting molten salt comprises the components of sodium nitrite (40%)/sodium nitrate (7%)/potassium nitrate (53%), the heat-conducting molten salt 941 is heated to 480 ℃ by the heat-conducting molten salt heater 943 and then is pumped into the input pipeline 945 by the heat-conducting molten salt pump 944 to enter the cracking furnace jacket 923 for heating, and the cooled heat-conducting molten salt 941 returns to the heat-conducting molten salt tank 942 through the output pipeline 946 to be heated again, so that the cyclic heating of the cracking furnace is realized;
the heat-conducting molten salt with the temperature of about 480 ℃ is used for providing a low-temperature constant-temperature and large-specific-heat source, the heating of the currently used high-temperature hot gas is replaced, the heating efficiency is improved, harmful substances formed at high temperature can be reduced through low-temperature cracking, and the harm to human bodies and the environment can be reduced;
the discharging device 93 is a discharging stranding cage 931 which is obliquely arranged, the discharging stranding cage 931 is obliquely arranged upwards, the discharging stranding cage 931 is obliquely arranged, the discharging end 935 of the discharging stranding cage is higher than the feeding end 932 of the discharging stranding cage 931, and the air tightness between the discharging stranding cage 931 and the cracking furnace 921 is ensured;
discharging carbon black or carbon slag 935 produced after the waste rubber and plastic are cracked upwards through the blades 933 of the discharging stranding cage; prevent that outside air from getting into pyrolysis furnace 921 from discharging device better, make useless rubber and plastic piece be in the schizolysis under anaerobic (or poor oxygen) state, not only reduced the consumption of the energy, can also reduce the potential safety hazard.
An oil gas outlet 924 is also formed in the cracking furnace 921 for discharging oil gas generated by cracking waste rubber and plastic; when the waste rubber and plastic are cracked in the cracking furnace, oil gas is produced and can be discharged from the oil gas outlet.
Cracking device still includes frequency modulation motor 927 for adjust the advancing speed of pyrolysis furnace, be equipped with helical blade 925 in the pyrolysis furnace 921, frequency modulation motor 927 can drive helical blade 925 rotates, avoids causing the coking of useless rubber and plastic to hinder the heat transfer because of high temperature, improves the schizolysis effect.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A safe, environment-friendly and cost-saving waste rubber and plastic cracking device comprises a feeding device, a cracking device, a heating device and a discharging device, wherein the cracking device comprises a cracking furnace, and the heating device comprises a heat-conducting molten salt heater, a heat-conducting molten salt tank and a cracking furnace jacket arranged on the cracking furnace; the heat-conducting molten salt heater can heat the heat-conducting molten salt in the heat-conducting molten salt tank;
the discharge hole of the feeding device is communicated with the feed hole of the cracking furnace, the discharge hole of the cracking furnace is communicated with the discharge device, and the heat-conducting molten salt tank is connected into the jacket of the cracking furnace through an input pipeline; wherein the feeding device, the cracking device and the discharging device are communicated in an air-lock manner; the feeding device is characterized in that the feeding device is a furnace entering stranding cage, and blades of the furnace entering stranding cage gradually narrow along the conveying direction.
2. The safe, environment-friendly and cost-effective rubber and plastic waste cracking apparatus as claimed in claim 1, wherein the discharging device is an inclined discharging stranding cage, and the discharging stranding cage is inclined upward.
3. The safe, environment-friendly and cost-effective waste rubber and plastic cracking equipment as claimed in claim 1 or 2, wherein the cracking furnace is further provided with an oil gas outlet for discharging oil gas generated by cracking waste rubber and plastic.
4. The safe, environment-friendly and cost-effective rubber and plastic waste cracking apparatus as claimed in claim 3, wherein the cracking device further comprises a frequency-modulated motor for adjusting the propelling speed of the cracking furnace.
5. The apparatus for cracking waste rubber and plastic according to claim 4, wherein a spiral blade is disposed in the cracking furnace, and the frequency modulation motor can rotate the spiral blade to convey the material.
6. The safe, environment-friendly and cost-effective waste rubber and plastic cracking equipment as claimed in claim 1, 2, 4 or 5, wherein the feeding device further comprises a receiving opening, and the receiving opening is arranged at the feeding opening of the furnace charging stranding cage.
7. The safe, environment-friendly and cost-effective rubber and plastic waste cracking equipment as claimed in claim 3, wherein the feeding device further comprises a receiving opening, and the receiving opening is arranged at the feeding opening of the furnace entering stranding cage.
8. The safe, environment-friendly and cost-effective rubber and plastic waste cracking apparatus according to claim 1, 2, 4 or 5, wherein the heating device further comprises a heat-conducting molten salt pump, and the heat-conducting molten salt pump can pump the heat-conducting molten salt in the heat-conducting molten salt tank into the cracking furnace jacket so as to circularly heat the cracking furnace.
9. The safe, environment-friendly and cost-effective rubber and plastic waste cracking apparatus as claimed in claim 3, wherein the heating device further comprises a heat-conducting molten salt pump, and the heat-conducting molten salt pump can pump the heat-conducting molten salt in the heat-conducting molten salt tank into the cracking furnace jacket so as to circularly heat the cracking furnace.
10. The safe, environment-friendly and cost-effective rubber and plastic waste cracking apparatus as claimed in claim 6, wherein the heating device further comprises a heat-conducting molten salt pump, and the heat-conducting molten salt pump can pump the heat-conducting molten salt in the heat-conducting molten salt tank into the cracking furnace jacket so as to circularly heat the cracking furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609638.6U CN212076950U (en) | 2020-04-21 | 2020-04-21 | Safe, environment-friendly and cost-saving waste rubber and plastic cracking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609638.6U CN212076950U (en) | 2020-04-21 | 2020-04-21 | Safe, environment-friendly and cost-saving waste rubber and plastic cracking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212076950U true CN212076950U (en) | 2020-12-04 |
Family
ID=73597280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020609638.6U Expired - Fee Related CN212076950U (en) | 2020-04-21 | 2020-04-21 | Safe, environment-friendly and cost-saving waste rubber and plastic cracking equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212076950U (en) |
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2020
- 2020-04-21 CN CN202020609638.6U patent/CN212076950U/en not_active Expired - Fee Related
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