CN215539780U - Waste plastic thermal cracking waste gas treatment device - Google Patents
Waste plastic thermal cracking waste gas treatment device Download PDFInfo
- Publication number
- CN215539780U CN215539780U CN202121804419.4U CN202121804419U CN215539780U CN 215539780 U CN215539780 U CN 215539780U CN 202121804419 U CN202121804419 U CN 202121804419U CN 215539780 U CN215539780 U CN 215539780U
- Authority
- CN
- China
- Prior art keywords
- pipe
- waste
- gas transmission
- gas
- waste gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a waste gas treatment device for waste plastic thermal cracking, which comprises a shell, wherein a waste gas treatment mechanism is arranged in the shell, the waste gas treatment mechanism comprises a guide pipe arranged in the shell, the upper half part of the guide pipe is wound with a spiral cooling pipe, an outer gas transmission pipe is arranged in the upper half part of the guide pipe, a plurality of air holes are uniformly formed in one side wall of the outer gas transmission pipe, and an inner gas transmission pipe is arranged in the outer gas transmission pipe. According to the utility model, the waste gas treatment mechanism is designed, the acidic substances in the waste gas in the thermal decomposition process of the waste plastics are removed by using the alkaline liquid, and because the temperature difference between the bottom end and the top end of the guide pipe is large, the waste gas can automatically flow in the guide pipe and enter the reaction cavity through the air holes, and meanwhile, the alkaline liquid in the liquid storage cavity can enter the reaction cavity and react in the reaction cavity, so that the acidic substances in the waste gas are removed.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment, in particular to a waste plastic thermal cracking waste gas treatment device.
Background
With the continuous progress of science and technology and the continuous improvement of living standard, the demand of people on plastic products is increasing, the production capacity of enterprises on the plastic products is also increasing, and the types of the plastic products are more and more, so that the treatment of waste plastics is more and more important, waste materials or waste products generated in the processes of production, processing, synthesis and the like of the plastics need to be treated, and the treatment is also needed after the use purpose or the service life of the plastic products is reached.
Many waste plastics are often treated by means of thermal decomposition, for example, polyvinyl chloride products are accompanied by depolymerization and random chain scission reactions during thermal decomposition, a lot of harmful inorganic substances are emitted in the series of reactions, the harmful substances are generally mixed in the waste gas, a plurality of procedures are often needed to treat the waste gas to discharge the waste gas into the air, for example, hydrogen chloride gas, which pollutes the atmosphere seriously and cannot be discharged into the air directly, and the waste gas is required to be treated.
Therefore, a waste plastic thermal cracking waste gas treatment device is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a waste plastic thermal cracking waste gas treatment device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a waste plastic thermal cracking waste gas treatment device comprises a shell, a waste gas treatment mechanism is arranged in the shell, the waste gas treatment mechanism comprises a guide pipe arranged in the shell, the upper half part of the guide pipe is wound with a spiral cooling pipe, an outer air delivery pipe is arranged in the upper half part of the guide pipe, a plurality of air holes are uniformly arranged on one side wall of the outer air delivery pipe, an inner gas pipe is arranged inside the outer gas pipe, a plurality of liquid leakage holes are uniformly arranged on one side wall of the inner gas pipe away from the air holes, an arc baffle is arranged in the inner gas transmission pipe, a rotating shaft is arranged on one side of the arc baffle, the top end of the rotating shaft is connected with a servo motor, a connecting rod is arranged between the rotating shaft and the arc-shaped baffle plate, a reaction cavity is formed between the outer gas transmission pipe and the inner gas transmission pipe, and a liquid storage cavity for storing alkaline liquid is formed in the inner gas transmission pipe;
one end of the spiral cooling pipe is connected with an air inlet connecting pipe with a valve, the other end of the spiral cooling pipe is connected with an air outlet connecting pipe with a valve, one side wall of the outer air delivery pipe is connected with an exhaust pipe with a valve in a communicating mode, a connecting block is arranged between the outer side wall of the middle of the guide pipe and the inner wall of the shell, and the bottom end of the guide pipe is connected with a connecting pipe.
Preferably, servo motor is located the shell top, the bottom of pivot is connected with the interior diapire rotation of interior gas-supply pipe, the top of pivot passes the interior roof of interior gas-supply pipe, the interior roof of shell in proper order and extends to shell top and outer gas-supply pipe's output fixed connection.
Preferably, the top end of the outer air conveying pipe and the top end of the guide pipe are located on the same horizontal plane, and the top ends of the outer air conveying pipe and the guide pipe are arranged in a closed mode.
Preferably, the top end of the inner gas pipe is higher than the top end of the outer gas pipe, the top end of the inner gas pipe is sealed, the liquid leakage hole is located in the lower half part of the side wall of the inner gas pipe, and the air hole is located in the upper half part of the side wall of the outer gas pipe.
Preferably, one end of the inlet connecting pipe penetrates through the inner side wall of the housing and extends to one side outside the housing, one end of the outlet connecting pipe penetrates through the inner side wall of the housing and extends to the other side outside the housing, and the other end of the inlet connecting pipe, the other end of the outlet connecting pipe and the two ends of the spiral cooling pipe are communicated and connected.
Preferably, one end part of the exhaust pipe penetrates through the guide pipe and the inner side wall of the guide pipe in sequence and extends to the outside of the shell, and the valve connected to the exhaust pipe is located outside the shell.
Preferably, one end of the connecting pipe penetrates through the inner bottom wall of the shell and extends to the lower part of the shell, and a valve for controlling the internal circulation of the pipeline of the connecting pipe is arranged in the middle of the connecting pipe.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the design of the waste gas treatment mechanism, acidic substances of waste plastics in the thermal decomposition process are removed by utilizing alkaline liquid, the temperature difference between the bottom end and the top end of the guide pipe is large, the waste gas can automatically flow in the guide pipe, so that the flow rate of the waste gas in the guide pipe is enhanced, the waste gas enters the reaction cavity through the air holes, meanwhile, the alkaline liquid in the liquid storage cavity can enter the reaction cavity, the alkaline liquid and the waste gas react in the reaction cavity, so that the acidic substances in the waste gas are removed, when the reaction of the acidic substances in the waste gas is finished, the leakage holes can be shielded by controlling the arc-shaped baffle plate to further avoid the alkaline liquid from flowing out, so that the waste of the alkaline liquid is avoided, when the reaction is needed, the arc-shaped baffle plate can be opened, so that the alkaline liquid and the acidic substances react, and the acid removal treatment of the waste gases generated in the thermal decomposition process of the waste plastics is further realized, and the waste gas after acid removal enters the next treatment process through an exhaust pipe.
2. Through letting in cooling gas in to the spiral cooling tube to make the temperature in the spiral cooling tube lower, and make the first half temperature in the stand pipe lower, and the stand pipe the latter half is because the effect of inside waste gas heat, and the temperature is higher, thereby plays a power to inside waste gas, makes waste gas enter into the speed of first half from the stand pipe the latter half and improves, thereby makes the processing rate of waste gas higher.
Drawings
FIG. 1 is a schematic front view of the overall structure of a waste gas treatment device for thermal cracking of waste plastics according to the present invention.
FIG. 2 is a schematic view of the back side of the overall structure of a waste heat cracking waste gas treatment device for waste plastics according to the present invention.
Fig. 3 is a schematic structural diagram of an exhaust gas treatment mechanism according to the present invention.
Fig. 4 is a schematic view of the inner structure of the guide tube according to the present invention.
Fig. 5 is a sectional view of an outer gas delivery tube according to the present invention.
In the figure: 1. a housing; 2. a guide tube; 3. a spiral cooling tube; 4. an outer trachea; 5. air holes are formed; 6. an inner gas delivery pipe; 7. a weep hole; 8. an arc-shaped baffle plate; 9. a rotating shaft; 10. a servo motor; 11. a connecting rod; 12. an air inlet connecting pipe; 13. an air outlet connecting pipe; 14 an exhaust pipe; 15. connecting blocks; 16. a connecting pipe; 17. a reaction chamber; 18. a liquid storage cavity.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a waste plastic thermal cracking waste gas treatment device comprises a shell 1, wherein the shell 1 is installed above a pyrolysis chamber, a waste gas treatment mechanism is installed inside the shell 1, the waste gas treatment mechanism comprises a guide pipe 2 installed inside the shell 1, waste generated in the thermal cracking process of waste plastic is input into the guide pipe 2, and a spiral cooling pipe 3 is wound on the upper half part of the guide pipe 2;
an outer gas transmission pipe 4 is arranged in the upper half part of the guide pipe 2, the top end of the outer gas transmission pipe 4 and the top end of the guide pipe 2 are positioned on the same horizontal plane, the top ends of the outer gas transmission pipe 4 and the guide pipe 2 are arranged in a sealed mode, waste gas in the guide pipe 2 is conveyed to the position of the outer gas transmission pipe 4 at the highest position, a plurality of air holes 5 are uniformly formed in one side wall of the outer gas transmission pipe 4, and the waste gas conveyed in the guide pipe 2 enters the inner part of the outer gas transmission pipe 4 from the air holes 5;
an inner gas pipe 6 is arranged inside the outer gas pipe 4, alkaline liquid is filled inside the outer gas pipe 4, a plurality of liquid leakage holes 7 are uniformly formed in one side wall, away from the air holes 5, of the inner gas pipe 6, the alkaline liquid can flow out of the inner gas pipe 6 through the liquid leakage holes 7, the top end of the inner gas pipe 6 is higher than the top end of the outer gas pipe 4, and the top end of the inner gas pipe 6 is sealed;
the liquid leakage hole 7 is positioned at the lower half part of the side wall of the inner gas conveying pipe 6, so that alkaline liquid in the liquid leakage hole 7 can flow out conveniently and enter the lower half part of the outer gas conveying pipe 4, the air hole 5 is positioned at the upper half part of the side wall of the outer gas conveying pipe 4, when waste gas enters the outer gas conveying pipe 4, the waste gas reacts with the alkaline liquid to remove acid substances in the waste gas, and the waste gas after acid removal of the alkaline liquid flows out through the exhaust pipe 14 and enters the next process;
an arc baffle plate 8 is arranged inside the inner gas pipe 6, the arc baffle plate 8 can shield the liquid leakage hole 7, when the arc baffle plate 8 shields the liquid leakage hole 7, the inner gas pipe 6 is of a closed structure, a rotating shaft 9 is arranged on one side of the arc baffle plate 8, a servo motor 10 is connected to the top end of the rotating shaft 9, the servo motor 10 is positioned above the shell 1, the bottom end of the rotating shaft 9 is rotatably connected with the inner bottom wall of the inner gas pipe 6, and the top end of the rotating shaft 9 sequentially penetrates through the inner top wall of the inner gas pipe 6 and the inner top wall of the shell 1 and extends to the upper side of the shell 1 to be fixedly connected with the output end of the outer gas pipe 4;
a connecting rod 11 is installed between the rotating shaft 9 and the arc baffle plate 8, so that the rotating shaft 9 is driven to rotate by a servo motor 10, the arc baffle plate 8 is enabled to change position inside the inner gas conveying pipe 6, the liquid leakage hole 7 is further shielded or exposed, a reaction cavity 17 is formed between the outer gas conveying pipe 4 and the inner gas conveying pipe 6, alkaline liquid flows into the reaction cavity 17 from the inner gas conveying pipe 6, waste gas in the guide pipe 2 also enters the reaction cavity 17 through the air holes 5 and then reacts with the alkaline liquid, a liquid storage cavity 18 is formed inside the inner gas conveying pipe 6, the liquid storage cavity 18 is used for storing the alkaline liquid, and the inner structure of the inner gas conveying pipe 6 is a component made of alkaline-resistant environment materials;
referring to fig. 3-5, an air inlet connecting pipe 12 with a valve is connected to one end of the spiral cooling pipe 3, one end of the air inlet connecting pipe 12 passes through the inner side wall of the housing 1 and extends to one side of the outside of the housing 1, one end of the steam outlet connecting pipe 13 passes through the inner side wall of the housing 1 and extends to the other side of the outside of the housing 1, the other end of the spiral cooling pipe 3 is connected with a steam outlet connecting pipe 13 with a valve, and the other end of the air inlet connecting pipe 12, the other end of the steam outlet connecting pipe 13 and the two ends of the spiral cooling pipe 3 are connected in a communicating manner;
cooling gas is input into the spiral cooling pipe 3 through the gas inlet connecting pipe 12, flows into the spiral cooling pipe 3 from the gas inlet connecting pipe 12, flows through the spiral cooling pipe 3 and flows out through the gas outlet connecting pipe 13, so that the temperature in the spiral cooling pipe 3 is reduced, the upper half part of the guide pipe 2 is further influenced, the temperature of the upper half part of the guide pipe 2 is reduced, the temperature difference is formed between the upper part and the lower part of the guide pipe 2, waste gas in the guide pipe 2 conveniently enters the upper half part with lower temperature from the lower half part with higher temperature, and the waste gas in the guide pipe 2 naturally flows by utilizing the molecular thermal motion principle;
an exhaust pipe 14 with a valve is connected to one side wall of the outer gas transmission pipe 4, the exhaust pipe 14 is communicated with the reaction cavity 17, one end of the exhaust pipe 14 sequentially penetrates through the guide pipe 2 and the inner side wall of the guide pipe 2 and extends to the outside of the shell 1, the valve connected to the exhaust pipe 14 is positioned outside the shell 1, and after the waste gas fully reacts with the alkaline liquid in the reaction cavity 17, the acid gas after acid removal leaves the device through the exhaust pipe 14 and enters the next treatment process;
be provided with connecting block 15 between the middle part lateral wall of stand pipe 2 and the inner wall of shell 1, connecting block 15's both ends respectively with the fixed connection of dismantling of the inside wall of shell 1 and the lateral wall of stand pipe 2, thereby fix stand pipe 2 inside shell 1, the bottom of stand pipe 2 is connected with connecting pipe 16, a tip of connecting pipe 16 passes the interior diapire of shell 1 and extends to shell 1 below, the mid-mounting of connecting pipe 16 has the valve of the inside circulation of 16 pipelines of control connection pipe, be linked together shell 1 and old and useless plastics's pyrolysis chamber through connecting pipe 16.
According to the utility model, a connecting pipe 16 is connected with an air outlet of a thermal decomposition chamber of waste plastics, waste gas generated in the thermal decomposition process of the waste plastics is introduced into a guide pipe 2, then the waste gas in the guide pipe 2 continuously rises under the condition of molecular thermal motion to reach the top of the guide pipe 2 and enters a reaction cavity 17 through an air vent 5 formed in the side wall of an outer gas transmission pipe 4, meanwhile, a certain amount of alkaline liquid is filled in a liquid storage cavity 18, a rotating shaft 9 is driven to rotate by a servo motor 10, so that an arc-shaped baffle plate 8 changes the position to expose a liquid leakage hole 7, then the alkaline liquid in the liquid storage cavity 18 flows out of the liquid leakage hole 7 and enters the reaction cavity 17 to react with the waste gas, acidic substances in the waste gas in the reaction cavity 17 are removed, and the waste gas after acid removal is transmitted to the next process through an exhaust pipe 14 to be treated.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;
and finally: the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The waste plastic thermal cracking waste gas treatment device comprises a shell (1) and is characterized in that a waste gas treatment mechanism is arranged inside the shell (1), the waste gas treatment mechanism comprises a guide pipe (2) arranged inside the shell (1), the upper half part of the guide pipe (2) is wound with a spiral cooling pipe (3), an outer gas transmission pipe (4) is arranged inside the upper half part of the guide pipe (2), a plurality of air holes (5) are uniformly formed in one side wall of the outer gas transmission pipe (4), an inner gas transmission pipe (6) is arranged inside the outer gas transmission pipe (4), a plurality of liquid leakage holes (7) are uniformly formed in one side wall of the inner gas transmission pipe (6) far away from the air holes (5), an arc-shaped baffle plate (8) is arranged inside the inner gas transmission pipe (6), and a rotating shaft (9) is arranged on one side of the arc-shaped baffle plate (8), the top end of the rotating shaft (9) is connected with a servo motor (10), a connecting rod (11) is installed between the rotating shaft (9) and the arc baffle (8), a reaction cavity (17) is formed between the outer gas conveying pipe (4) and the inner gas conveying pipe (6), and a liquid storage cavity (18) for storing alkaline liquid is formed in the inner gas conveying pipe (6);
one end of spiral cooling pipe (3) is connected with admits air connecting pipe (12) that has the valve, another tip of spiral cooling pipe (3) is connected with play vapour connecting pipe (13) that have the valve, a lateral wall of outer gas transmission pipe (4) leads to and is connected with blast pipe (14) that have the valve, be provided with connecting block (15) between the middle part lateral wall of stand pipe (2) and the inner wall of shell (1), the bottom of stand pipe (2) is connected with connecting pipe (16).
2. The waste plastic thermal cracking waste gas treatment device according to claim 1, wherein the servo motor (10) is located above the outer shell (1), the bottom end of the rotating shaft (9) is rotatably connected with the inner bottom wall of the inner gas transmission pipe (6), and the top end of the rotating shaft (9) sequentially penetrates through the inner top wall of the inner gas transmission pipe (6) and the inner top wall of the outer shell (1) and extends to the upper part of the outer shell (1) to be fixedly connected with the output end of the outer gas transmission pipe (4).
3. The apparatus for treating waste gas produced by thermal cracking of waste plastics according to claim 1, wherein the top end of the outer gas transmission pipe (4) and the top end of the guide pipe (2) are at the same level, and the top ends of the outer gas transmission pipe (4) and the guide pipe (2) are closed.
4. The waste plastic thermal cracking waste gas treatment device as claimed in claim 1, wherein the top end of the inner gas transmission pipe (6) is higher than the top end of the outer gas transmission pipe (4), the top end of the inner gas transmission pipe (6) is arranged in a closed manner, the liquid leakage hole (7) is located in the lower half part of the side wall of the inner gas transmission pipe (6), and the air hole (5) is located in the upper half part of the side wall of the outer gas transmission pipe (4).
5. The waste gas treatment device for thermal cracking of waste plastics according to claim 1, wherein one end of the gas inlet connecting pipe (12) penetrates the inner side wall of the housing (1) and extends to one side of the outside of the housing (1), one end of the gas outlet connecting pipe (13) penetrates the inner side wall of the housing (1) and extends to the other side of the outside of the housing (1), and the other end of the gas inlet connecting pipe (12) and the other end of the gas outlet connecting pipe (13) are connected to the two ends of the spiral cooling pipe (3).
6. An apparatus for treating waste gas produced by thermal cracking of waste plastics according to claim 1, wherein an end of the exhaust pipe (14) passes through the guide pipe (2) and the inner side wall of the guide pipe (2) in sequence and extends to the outside of the housing (1), and the valve connected to the exhaust pipe (14) is located outside the housing (1).
7. An apparatus for treating waste gas produced by thermal cracking of waste plastics according to claim 1, wherein one end of the connecting pipe (16) passes through the inner bottom wall of the outer casing (1) and extends to the lower part of the outer casing (1), and a valve for controlling the flow of the inside of the pipe of the connecting pipe (16) is installed at the middle part of the connecting pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804419.4U CN215539780U (en) | 2021-08-04 | 2021-08-04 | Waste plastic thermal cracking waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804419.4U CN215539780U (en) | 2021-08-04 | 2021-08-04 | Waste plastic thermal cracking waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215539780U true CN215539780U (en) | 2022-01-18 |
Family
ID=79832280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121804419.4U Active CN215539780U (en) | 2021-08-04 | 2021-08-04 | Waste plastic thermal cracking waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215539780U (en) |
-
2021
- 2021-08-04 CN CN202121804419.4U patent/CN215539780U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215539780U (en) | Waste plastic thermal cracking waste gas treatment device | |
| CN214781653U (en) | Continuous biomass pyrolysis equipment | |
| CN209005699U (en) | A kind of methanol decomposition reactor | |
| CN208351945U (en) | A kind of radioactivity debirs processing equipment | |
| CN116216820A (en) | Anaerobic reaction sewage treatment device with heating mechanism and treatment method thereof | |
| CN210773566U (en) | Waste heat recovery device for environmental engineering waste gas treatment | |
| CN213824804U (en) | Device for preparing hexafluoroisopropanol through catalytic hydrogenation | |
| CN211445204U (en) | Ozone oxidation sewage advanced treatment unit | |
| CN113135644A (en) | A disinfection processing apparatus for municipal sludge | |
| CN110822851A (en) | Processing equipment of potassium aurous cyanide | |
| CN112246085A (en) | Laboratory exhaust purification fume chamber | |
| CN206568367U (en) | A kind of kneading device of rubber production | |
| CN216935345U (en) | High-efficiency waste gas heat accumulating type high-temperature oxidation treatment equipment | |
| CN214937761U (en) | High-temperature nitriding quenching device of vacuum pulse carburizing furnace | |
| CN219607642U (en) | Dryer capable of avoiding silicon material oxidation | |
| CN219995348U (en) | Exhaust gas catalytic combustion jar convenient to add catalyst | |
| CN210620362U (en) | Ozone contact tank | |
| CN215028307U (en) | Decomposition device of papermaking retention aid | |
| CN117904574B (en) | Surface nitriding treatment equipment of die | |
| CN219764970U (en) | Industrial waste gas treatment tower and spray washing device thereof | |
| CN213131990U (en) | Novel condensation pitch flue gas is handled device | |
| CN217274189U (en) | Catalytic combustion treatment device | |
| CN214192869U (en) | Chemical wastewater treatment device | |
| CN220288146U (en) | Novel converter for producing active carbon by phosphoric acid method | |
| CN217248273U (en) | Water bath treatment device for compound fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |