Normal-pressure continuous environment-friendly reclaimed rubber production equipment

Abstract

The utility model discloses normal-pressure continuous environment-friendly reclaimed rubber production equipment which comprises a first reaction tank, a second reaction tank and a third reaction tank, the discharge end of the first reaction tank is communicated with a first spiral conveying assembly, the discharge end of the first spiral conveying assembly is communicated with a first three-way pipe, and the discharge end of the third reaction tank is communicated with a second spiral conveying assembly. The discharging end of one end of the first three-way pipe is communicated with the first reaction tank, the discharging end of the other end of the first three-way pipe is communicated with the second reaction tank, the discharging end of the second reaction tank is communicated with a second spiral conveying assembly, and the discharging end of the second spiral conveying assembly is communicated with a second three-way pipe. A discharge end at one end of the second three-way pipe is communicated with the second reaction tank, and a discharge end at the other end of the second three-way pipe is communicated with the third reaction tank. When the equipment is used, continuous normal-pressure treatment is utilized, and on the basis that rubber is recycled, actual pollution is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber recycling, in particular to an atmospheric pressure continuous environmental protection type reclaimed rubber production device. Background Technique

[0002] Vulcanized rubber products such as waste tires can be heated to a certain temperature to break the network structure of rubber molecules and regain the vulcanizability. This process is called regeneration, and the product is called reclaimed rubber. Regeneration is divided into three processes: one, mixing and heating; two, constant temperature reaction; three, rapid cooling. The traditional method in the past was to add vulcanized rubber powder and softening oil and other additives into a high-pressure reaction kettle, add water or introduce steam, and then externally heat to increase the internal pressure to a certain pressure. After maintaining the pressure for a certain time, exhaust and relieve the pressure. When relieving the pressure, the water in the tank evaporates to take away heat, so that the temperature of the rubber powder drops. Then, open the tank mouth to discharge the material and reload the material, repeating the above process;

[0003] However, in actual use, we found that when the above method is operated, since it is carried out under high temperature and high pressure, the pressure is generally above 2.0 MPa, and serious pollution will be generated during the processes of exhaust and pressure relief, discharging and feeding, which is not easy to collect and treat. Therefore, how to solve this problem needs to be considered. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a proposed atmospheric pressure continuous environmental protection type reclaimed rubber production device, when the device is used, by using continuous atmospheric pressure treatment, on the basis of recovering rubber, the pollution actually generated is greatly reduced.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An atmospheric pressure continuous environmental protection type reclaimed rubber production device, comprising a first reaction tank, a second reaction tank and a third reaction tank. The discharge end of the first reaction tank is connected to a first screw conveyor assembly. The discharge end of the first screw conveyor assembly is connected to a first three-way pipe. One discharge end of the first three-way pipe is connected to the first reaction tank, and the other discharge end of the first three-way pipe is connected to the second reaction tank. The discharge end of the second reaction tank is connected to a second screw conveyor assembly. The discharge end of the second screw conveyor assembly is connected to a second three-way pipe. One discharge end of the second three-way pipe is connected to the second reaction tank, and the other discharge end of the second three-way pipe is connected to the third reaction tank. The discharge end of the third reaction tank is connected to a third screw conveyor assembly. The discharge end of the third screw conveyor assembly is connected to a third three-way pipe. One discharge end of the third three-way pipe is connected to the third reaction tank, and a discharge valve is installed at the other discharge end of the third three-way pipe; an additive tank and a rubber powder bin. Valves are installed at the discharge ends of the additive tank and the rubber powder bin, and the discharge ends of the additive tank and the rubber powder bin are both connected to the first reaction tank.

[0007] Preferably, stirring assemblies are installed on the first reaction tank, the second reaction tank and the third reaction tank. The stirring assembly includes a driving motor, and a plurality of stirring shafts are installed on the output shaft of the driving motor.

[0008] Preferably, the first screw conveyor assembly, the second screw conveyor assembly and the third screw conveyor assembly are each composed of a horizontal screw conveyor and a vertical screw conveyor.

[0009] Preferably, heaters are installed on the outer walls of the first reaction tank and the second reaction tank, as well as on the outer walls of the first screw conveyor assembly and the second screw conveyor assembly. A cooler is installed on the outer wall of the third reaction tank and the outer wall of the third screw conveyor assembly. Temperature sensors are installed inside the first reaction tank and the third reaction tank.

[0010] Preferably, turning valves are installed inside the first three-way pipe, the second three-way pipe and the third three-way pipe.

[0011] Preferably, an exhaust gas processor is further included. Branch pipes are connected to the inner tops of the first three-way pipe, the second three-way pipe and the third three-way pipe. The other ends of the three branch pipes are commonly connected to a main pipe, and the other end of the main pipe is connected to the intake end of the exhaust gas processor.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The process of rubber regeneration is divided into three closely connected and efficiently operating equipment units. This innovative design completely subverts the limitations of traditional technologies that rely on high-temperature and high-pressure environments. Through this transformation, we have successfully avoided the environmental pollution problems that may occur during the exhaust pressure relief and material discharging and feeding processes under high-temperature and high-pressure conditions, achieving a green upgrade of the production process. This environmentally friendly rubber regeneration system not only significantly improves the environmental performance of the overall production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural diagram of an atmospheric-pressure continuous environmentally friendly reclaimed rubber production device proposed by the present utility model;

[0015] Figure 2 FIG. is a schematic structural diagram of one of the stirring components.

[0016] In the figure: 1 first reaction tank, 2 second reaction tank, 3 third reaction tank, 4 first screw conveyor assembly, 5 second screw conveyor assembly, 6 third screw conveyor assembly, 7 first three-way pipe, 8 second three-way pipe, 9 third three-way pipe, 10 discharge valve, 11 steering valve, 12 additive tank, 13 rubber powder bin, 14 branch pipe, 15 main pipe, 16 waste gas processor, 17 drive motor, 18 stirring shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0018] Refer to Figure 1 - Figure 2, An atmospheric-pressure continuous environmental protection type reclaimed rubber production device, including a first reaction tank 1, a second reaction tank 2 and a third reaction tank 3. The discharge end of the first reaction tank 1 is connected to a first screw conveyor assembly 4. The discharge end of the first screw conveyor assembly 4 is connected to a first three-way pipe 7. One discharge end of the first three-way pipe 7 is connected to the first reaction tank 1, and the other discharge end of the first three-way pipe 7 is connected to the second reaction tank 2. The discharge end of the second reaction tank 2 is connected to a second screw conveyor assembly 5. The discharge end of the second screw conveyor assembly 5 is connected to a second three-way pipe 8. One discharge end of the second three-way pipe 8 is connected to the second reaction tank 2, and the other discharge end of the second three-way pipe 8 is connected to the third reaction tank 3. The discharge end of the third reaction tank 3 is connected to a third screw conveyor assembly 6. The discharge end of the third screw conveyor assembly 6 is connected to a third three-way pipe 9. Steering valves 11 are installed in the first three-way pipe 7, the second three-way pipe 8 and the third three-way pipe 9. Here, the steering valve 11 is the existing reversing valve. Taking the first three-way pipe 7 as an example, using the steering valve 11 can make the discharge of the first three-way pipe 7 selectively flow back into the first reaction tank 1 or move to the second reaction tank 2. One discharge end of the third three-way pipe 9 is connected to the third reaction tank 3, and a discharge valve 10 is installed at the other discharge end of the third three-way pipe 9. The first screw conveyor assembly 4, the second screw conveyor assembly 5 and the third screw conveyor assembly 6 are all composed of a horizontal screw conveyor and a vertical screw conveyor, so as to achieve the purpose of subsequent cyclic conveying;

[0019] Among them, stirring assemblies are installed on the first reaction tank 1, the second reaction tank 2 and the third reaction tank 3. The stirring assembly includes a driving motor 17. A plurality of stirring shafts 18 are installed on the output shaft of the driving motor 17. The driving motor 17 is installed on the outer side wall of each reaction tank. The stirring shafts 18 of the driving motor 17 are all located inside the plurality of reaction tanks, playing the role of stirring materials, promoting mixing, reaction and cooling;

[0020] Among them, heaters are installed on the outer walls of the first reaction tank 1 and the second reaction tank 2, as well as the outer walls of the first screw conveyor assembly 4 and the second screw conveyor assembly 5. The heaters of the first reaction tank 1 and the first screw conveyor assembly 4 are high-temperature heaters (that is, the heating temperature is much higher than the required temperature), which can quickly raise the temperature of the internal materials. The heaters of the second reaction tank 2 and the second screw conveyor assembly 5 are constant-temperature heaters (that is, the heating temperature is close to the required temperature), which can keep the inside at a suitable temperature all the time. Coolers are installed on the outer walls of the third reaction tank 3 and the third screw conveyor assembly 6. The coolers adopt a circulating water cooling device, which is a commonly used existing cooling equipment. Temperature sensors are installed in both the first reaction tank 1 and the third reaction tank 3. There is also a controller (not shown), which is controlled by PLC. In the initial state, the steering valve 11 in the first three-way pipe 7 is in Figure 1As shown, when the first spiral conveying assembly 4 is started, the material will eventually flow back from the left discharge pipe of the first three-way pipe 7 to the inside of the first reaction tank 1, and the internal heater will be started at the same time to achieve cyclic heating. When the temperature reaches the set temperature, the steering valve 11 of the first three-way pipe 7 will rotate to seal the left discharge pipe and connect the right discharge pipe. In this way, after the first spiral conveying assembly 4 is started, the heated material will be transferred to the second reaction tank 2. At this time, the heater of the second reaction tank 2 is started, and the second spiral conveying assembly 5 is started at the same time, and the material in the second reaction tank 2 The material will be moved back to the second reaction tank 2 through the second screw conveying assembly 5 and the second three-way pipe 8. After the fixed start time, the steering valve 11 in the second three-way pipe 8 will rotate to seal the left discharge pipe and open the right discharge pipe, and the material will be discharged into the third reaction tank 3. After the cooler in the third reaction tank 3 is started, the third screw conveying assembly 6 is started at the same time to perform cyclic cooling. After cooling to a suitable temperature, the steering valve 11 in the third three-way pipe 9 will rotate to seal the left discharge pipe and open the right discharge pipe, and the material will eventually be discharged from the discharge valve 10.

[0021] The auxiliary agent tank 12 and the glue powder bin 13 are also included. The discharge ends of the auxiliary agent tank 12 and the glue powder bin 13 are both equipped with valve bodies. The discharge ends of the auxiliary agent tank 12 and the glue powder bin 13 are both connected to the first reaction tank 1.

[0022] Among them, it also includes an exhaust gas processor 16. The inner tops of the first three-way pipe 7, the second three-way pipe 8 and the third three-way pipe 9 are all connected to a branch pipe 14. The other ends of the three branch pipes 14 are commonly connected to a main pipe 15. The other end of the main pipe 15 is connected to the air inlet end of the exhaust gas processor 16. The exhaust gas processor 16 is a prior art, which may be an exhaust gas treatment device disclosed in the utility model patent with publication number CN202020856533.0.

[0023] In the present utility model, during use, after injecting an appropriate amount of material to be processed through the auxiliary agent tank 12 and the rubber powder bin 13, the first spiral conveyor assembly 4 is started. At this time, the diversion valve 11 is located on the right side to seal the left discharge pipe and conduct the left discharge pipe. The material will finally flow back to the inside of the first reaction tank 1 from the left discharge pipe of the first three-way pipe 7. At the same time, the internal heater is started to achieve circulating heating. When the temperature reaches the set temperature, the diversion valve 11 of the first three-way pipe 7 will rotate to seal the left discharge pipe and conduct the right discharge pipe. In this way, after the first spiral conveyor assembly 4 is started, the heated material will be transferred to the second reaction tank 2. At this time, the heater of the second reaction tank 2 is started, and at the same time, the second spiral conveyor assembly 5 is started. The material in the second reaction tank 2 will move back to the second reaction tank 2 through the second spiral conveyor assembly 5 and the second three-way pipe 8 for circulating constant temperature reaction. After a fixed time is started, the diversion valve 11 in the second three-way pipe 8 will rotate to seal the left discharge pipe and conduct the right discharge pipe, and the material will be discharged into the third reaction tank 3. After the cooler in the third reaction tank 3 is started, at the same time, the third spiral conveyor assembly 6 is started for circulating cooling. When it is cooled to an appropriate temperature, the diversion valve 11 in the third three-way pipe 9 will rotate to seal the left discharge pipe and conduct the right discharge pipe, and the material will finally be discharged from the discharge valve 10. During the above process, the stirring assembly can be started at the same time. The start of the stirring assembly can make the heating, reaction and cooling more sufficient and uniform;

[0024] In addition, the waste gas generated by the reaction will be directly discharged into the waste gas processor 16 through a plurality of branch pipes 14 for treatment.

[0025] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent replacements or changes, should be covered within the protection scope of the present utility model.

Claims

1. An atmospheric-pressure continuous environmental protection type reclaimed rubber production device, characterized in that, Including: A first reaction tank (1), a second reaction tank (2) and a third reaction tank (3). The discharge end of the first reaction tank (1) is connected to a first screw conveyor assembly (4). The discharge end of the first screw conveyor assembly (4) is connected to a first three-way pipe (7). One discharge end of the first three-way pipe (7) is connected to the first reaction tank (1), and the other discharge end of the first three-way pipe (7) is connected to the second reaction tank (2). The discharge end of the second reaction tank (2) is connected to a second screw conveyor assembly (5). The discharge end of the second screw conveyor assembly (5) is connected to a second three-way pipe (8). One discharge end of the second three-way pipe (8) is connected to the second reaction tank (2), and the other discharge end of the second three-way pipe (8) is connected to the third reaction tank (3). The discharge end of the third reaction tank (3) is connected to a third screw conveyor assembly (6). The discharge end of the third screw conveyor assembly (6) is connected to a third three-way pipe (9). One discharge end of the third three-way pipe (9) is connected to the third reaction tank (3), and a discharge valve (10) is installed at the other discharge end of the third three-way pipe (9). An additive tank (12) and a rubber powder bin (13). Valves are installed at the discharge ends of the additive tank (12) and the rubber powder bin (13), and the discharge ends of the additive tank (12) and the rubber powder bin (13) are both connected to the first reaction tank (1).

2. The atmospheric pressure continuous environmental protection type reclaimed rubber production equipment according to claim 1, characterized in that, Agitating assemblies are installed on the first reaction tank (1), the second reaction tank (2) and the third reaction tank (3). The agitating assembly includes a driving motor (17), and a plurality of agitating shafts (18) are installed on the output shaft of the driving motor (17).

3. An atmospheric pressure continuous environmental protection type reclaimed rubber production device according to claim 1, characterized in that, The first screw conveyor assembly (4), the second screw conveyor assembly (5) and the third screw conveyor assembly (6) are each composed of a horizontal screw conveyor and a vertical screw conveyor.

4. An atmospheric pressure continuous environmental protection type reclaimed rubber production device according to claim 1, characterized in that, Heaters are installed on the outer walls of the first reaction tank (1) and the second reaction tank (2), and on the outer walls of the first screw conveyor assembly (4) and the second screw conveyor assembly (5). A cooler is installed on the outer wall of the third reaction tank (3) and the outer wall of the third screw conveyor assembly (6). Temperature sensors are installed in the first reaction tank (1) and the third reaction tank (3).

5. An atmospheric-pressure continuous environmental protection type reclaimed rubber production device according to claim 1, characterized in that, Turning valves (11) are installed in the first three-way pipe (7), the second three-way pipe (8) and the third three-way pipe (9).

6. The continuous environmental protection type reclaim rubber production equipment under normal pressure according to claim 1, characterized in that, An exhaust gas processor (16) is further included. Branch pipes (14) are connected to the inner tops of the first three-way pipe (7), the second three-way pipe (8) and the third three-way pipe (9). The other ends of the three branch pipes (14) are commonly connected to a main pipe (15), and the other end of the main pipe (15) is connected to the intake end of the exhaust gas processor (16).

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