Device for continuously refining desulfurized rubber powder to efficiently prepare regenerated rubber
The continuous rubber recycling system addresses scatter and adhesion issues by forming and cooling rubber powder before refining, ensuring stable and safe production with improved product quality.
Patent Information
- Application Number
- CN202421815247.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the prior art, waste rubber powder is prone to scatter during refining, resulting in equipment instability and safety risks, and there is a risk of equipment blockage.
The device including a first conveyor belt, a twin screw extruder, a double roller refiner and a forward and reverse bidirectional conveyor belt is adopted to achieve continuous refining of the glue powder through screw extrusion molding, water-cooled cooling, calcium powder spraying and multiple extrusion filtration.
It effectively solves the problems of scattered rubber powder and equipment blockage, improves production stability and safety, and improves the processing performance of recycled rubber.
Smart Images
Figure CN223099647U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of production devices for recycled rubber powder, and particularly relates to a device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder. Background Art
[0002] In recent years, the production of recycled rubber by the atmospheric continuous desulfurization method has been gradually promoted. Generally, waste rubber powder and a regenerant are premixed and then continuously conveyed into a desulfurizer. In a sealed conveying state within a spiral / screw device, heating desulfurization and jacketed spiral cooling are carried out to complete desulfurization and temperature reduction. After the waste rubber powder is desulfurized to obtain desulfurized rubber powder, the recycled rubber powder enters the refining process. This process uses 3 - 4 tandem high-speed ratio double-roll refiners to forcibly shear and knead the recycled rubber powder to reduce the Mooney viscosity of the recycled rubber and improve the processing performance of the recycled rubber.
[0003] However, since the tandem high-speed refiners use a belt for "inverting the rubber": that is, the rubber material that meets the requirements enters the next refiner, and the non-conforming material returns to the first refiner. Especially when the rubber material enters the first refiner, it is still in a loose state, and it is easy to scatter. Falling on the ground will cause accumulation, not only continuously emitting odors, but also posing certain safety hazards. If it falls into the belt gap, it is also easy to cause the equipment to stop, affecting the continuous and stable production. Content of the Utility Model
[0004] The purpose of the utility model is to provide a device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder in order to solve the problems such as easy scattering in the existing refining process.
[0005] The utility model realizes the above purpose through the following technical solutions: It includes a first conveyor belt. Above the first conveyor belt, there is a first feeding port. On one side of the first conveyor belt, there is a twin-screw extruder. The twin-screw extruder includes a base. Above the base, there is a motor. On the side of the motor, there are support columns. Two screw extrusion columns are movably connected to the sides of the support columns. Above one end of the screw extrusion columns close to the motor, there are first feeding ports. Below the screw extrusion columns, there are water cooling systems. On the side of the screw extrusion columns away from the motor, there are first discharge ports. On the side of the first conveyor belt away from the twin-screw extruder, there is a double-roll refiner. On one side of the double-roll refiner, there is a second conveyor belt. Above the second conveyor belt, there is a second feeding port. On one side of the second conveyor belt, there is a filter. On one side of the filter, there is a third conveyor belt. Above the third conveyor belt, there is a third feeding port. Below the third conveyor belt, there is a first refiner. On the side of the first refiner, there is a second refiner. Above the space between the first refiner and the second refiner, there is a positive and negative two-way conveyor belt.
[0006] Further, the double-roll refining machine includes a refining machine body. A second feed port is provided above the refining machine body. A first rotating roll is provided inside the refining machine body. A second rotating roll is provided on the side of the first rotating roll. A first cylinder is provided at one end of the second rotating roll. A second discharge port is provided below the side of the first rotating roll away from the second rotating roll.
[0007] Further, both the first rotating roll and the second rotating roll are driven by a driving motor. The first cylinder is located on the side of the motor on the side of the second rotating roll and the two are fixedly connected. The second discharge port is located above the second conveyor belt. The second rotating roll is movably connected to the double-roll refining machine body.
[0008] Further, the first refining machine and the second refining machine have the same structure. The first refining machine includes a refining machine body. A bracket is provided on the side of the refining machine body. A first moving roll is provided on one side of the bracket. A second moving roll is provided on the side of the bracket away from the first moving roll. An inverted U-shaped housing is provided on the side of the second moving roll. A third moving roll is fixedly connected inside the inverted U-shaped housing. A winding roll is provided on the side of the third moving roll. A cutting knife is provided between the winding roll and the third moving roll. A second cylinder is provided above the cutting knife.
[0009] Further, the second cylinder is fixedly connected to the inverted U-shaped housing. The winding roll is movably connected to the inverted U-shaped housing.
[0010] Further, the first discharge port is located above the first conveyor belt. One end of the first conveyor belt is located above the second feed port. One end of the forward and reverse double-sided conveyor belt is located below the third conveyor belt.
[0011] Further, the conveyor belt materials of the first conveyor belt, the second conveyor belt, the third conveyor belt and the forward and reverse double-sided conveyor belt are all iron.
[0012] Beneficial effects: The design of the present utility model is reasonable and has the following beneficial effects:
[0013] 1. When the present utility model is in use, loose desulfurized rubber powder is conveyed into the screw extrusion column through the first feed port, and the loose rubber powder is formed by the screw extrusion column. During extrusion, the water cooling system cools the rubber powder for subsequent work. First, it is extruded and formed by the bolt screw extruder and then transported to the double-roll refining machine. In this way, the problem of loose desulfurized rubber powder in the past is effectively solved. In the past, the loose desulfurized rubber powder was directly added to the double-roll refining machine for refining, and it was easy to scatter on the ground or get stuck in the equipment gap when falling at the edge.
[0014] 2. During transportation, calcium powder is added through the feeding port. The addition of calcium powder reduces the adhesion between desulfurized rubber powders to a certain extent, reduces the risk of equipment blockage, and the materials of the conveyor belts are all iron, which improves the heat dissipation of the conveyor belts and reduces the risk of rubber powders sticking to the conveyor belts. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a front sectional view of the twin-screw extruder of the present utility model;
[0017] Figure 3 is a front sectional view of the double-roll refining machine of the present utility model;
[0018] Figure 4 is a structural diagram of the first refining machine of the present utility model.
[0019] In the figure: 1 - first conveyor belt, 2 - first feeding port, 3 - twin-screw extruder, 4 - double-roll refining machine, 5 - second conveyor belt, 6 - second feeding port, 7 - filter, 8 - third conveyor belt, 9 - third feeding port, 10 - positive and negative two-way conveyor belt, 11 - first refining machine, 12 - second refining machine;
[0020] 31 - base, 32 - motor, 33 - support column, 34 - screw extrusion column, 35 - first feeding port, 36 - first discharging port, 37 - water cooling system, 41 - double-roll refining machine body, 42 - second feeding port, 43 - first rotating roll, 44 - second rotating roll, 45 - first cylinder, 46 - second discharging port, 111 - refining machine body, 112 - bracket, 113 - first moving roll, 114 - second moving roll, 115 - third moving roll, 116 - winding roll, 117 - cutting knife, 118 - second cylinder, 119 - inverted U-shaped housing. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] 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 the embodiments.
[0022] In conjunction with Figures 1 to 4A device for continuously refining desulfurized rubber powder to efficiently prepare recycled rubber as shown, includes a first conveyor belt 1, with a first feeding port 2 above the first conveyor belt 1, and a twin-screw extruder 3 on one side of the first conveyor belt 1. The twin-screw extruder includes a base 31, with a motor 32 above the base 31, a support column 33 on the side of the motor 32, and two screw extrusion columns 34 movably connected to the side of the support column 33. Above one end of each screw extrusion column 34 close to the motor 32, there is a first feeding port 35, and below each screw extrusion column 34, there is a water cooling system 37. On the side of each screw extrusion column 34 away from the motor 32, there is a first discharge port 36. On the side of the first conveyor belt 1 away from the twin-screw extruder 3, there is a double-roll refiner 4. On one side of the double-roll refiner 4, there is a second conveyor belt 5, with a second feeding port 6 above the second conveyor belt 5, a filter 7 on one side of the second conveyor belt 5, a third conveyor belt 8 on one side of the filter 7, a third feeding port 9 above the third conveyor belt 8, a first refiner 11 below the third conveyor belt 8, a second refiner 12 on the side of the first refiner 11, and a positive and negative two-way conveyor belt 10 above the space between the first refiner 11 and the second refiner 12.
[0023] Among them, the double-roll refiner 4 includes a double-roll refiner body 41, with a second feeding port 42 above the double-roll refiner body 41, a first rotating roll 43 inside the double-roll refiner body 41, a second rotating roll 44 on the side of the first rotating roll 43, a first cylinder 45 at one end of the second rotating roll 44, and a second discharge port 46 below the side of the first rotating roll 43 away from the second rotating roll 44; both the first rotating roll 43 and the second rotating roll 44 are driven by a driving motor. The first cylinder 45 is located on the side of the motor on the side of the second rotating roll 44 and is fixedly connected to it. The second discharge port 46 is above the second conveyor belt 5, and the second rotating roll 44 is movably connected to the double-roll refiner body 41; the first cylinder 45 on the double-roll refiner 4 can drive the second rotating roll 44 to move, can adjust the distance between the two rotating rolls, and can further crush the hard particles of the desulfurized rubber powder, making the surface of the recycled rubber product delicate and shiny.
[0024] The first refining machine 11 and the second refining machine 12 have the same mechanism. The first refining machine 11 includes a refining machine body 111. A bracket 112 is provided on the side of the refining machine body 111. A first moving roller 113 is provided on one side of the bracket 112. A second moving roller 114 is provided on the side of the bracket 112 away from the first moving roller 113. An inverted U-shaped housing 119 is provided on the side of the second moving roller 114. A third moving roller 115 is fixedly connected inside the inverted U-shaped housing 119. A winding roller 116 is provided on the side of the third moving roller 115. A cutting knife 117 is provided between the winding roller 116 and the third moving roller 115. A second cylinder 118 is provided above the cutting knife 117; the second cylinder 118 is fixedly connected to the inverted U-shaped housing 119, and the winding roller 116 is movably connected to the inverted U-shaped housing 119; the two refining machines can form a double-station to pressurize and form the rubber powder during winding, which can effectively improve work efficiency.
[0025] The first discharge port 36 is located above the first conveyor belt 1. One end of the first conveyor belt 1 is located above the second feed port 42. One end of the forward and reverse conveyor belt 10 is located below the third conveyor belt 8; the conveyor belt materials of the first conveyor belt 1, the second conveyor belt 5, the third conveyor belt 8, and the forward and reverse conveyor belt 10 are all made of iron.
[0026] Working principle: When the present invention is in use, first, the loose desulfurized rubber powder is conveyed into the screw extrusion column 34 through the first feed port 35. The screw extrusion column 34 forms the loose rubber powder. During extrusion, the water cooling system 37 cools the rubber powder for subsequent work. The formed rubber powder is conveyed through the first conveyor belt 1. At the same time, the first feeding port 6 sprays calcium powder on the rubber powder above the first conveyor belt 5 to reduce the viscosity of the rubber powder. Then the formed rubber powder enters the second feed port 42 above the double-roll refining machine 4. Then the rubber powder is extruded into flakes by the action of the first rotating roller 43 and the second rotating roller 44. After extrusion, the rubber powder block is conveyed through the second conveyor belt 5. At the same time, the upper second feeding port 6 sprays rubber powder on the rubber powder block. When the rubber powder block enters the filter 7, the internal filter screen filters metal and other impurities inside the rubber powder block. After filtration, it is transported to the forward and reverse conveyor belt 10 through the third conveyor belt 8. At the same time, the filtered rubber powder is sprayed with calcium powder by the third feeding port 9. Whichever of the first refining machine 11 and the second refining machine 12 is available, the conveyor belt will convey it above the machine. Through the two refining machines, the filtered rubber powder is extruded into flakes. The flaky rubber powder is moved to the winding roller 116 through three moving rollers for winding. When the winding reaches a certain thickness, the cutting knife 117 drives the lifting through the second cylinder 118 to cut the flaky rubber powder. Then it is removed from the winding roller and a new winding roller is replaced for winding. The drive motor, motor, screw extrusion column, water cooling system, refining machine body, double-roll refining machine body, conveyor belt, filter, and forward and reverse conveyor belt of the present invention are all prior arts and will not be specifically described.
[0027] The present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
[0028] Furthermore, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0029]
Claims
1. An apparatus for continuously refining desulfurized rubber powder to efficiently prepare recycled rubber, characterized in that: It includes a first conveyor belt (1), above which there is a first feeding port (2). On one side of the first conveyor belt (1), there is a twin-screw extruder (3). The twin-screw extruder includes a base (31), above which there is a motor (32). On the side of the motor (32), there is a support column (33). Two screw extrusion columns (34) are movably connected to the side of the support column (33). Above one end of each screw extrusion column (34) close to the motor (32), there is a first feed port (35). Below each screw extrusion column (34), there is a water cooling system (37). On one side of each screw extrusion column (34) away from the motor (32), there is a first discharge port (36). On one side of the first conveyor belt (1) away from the twin-screw extruder (3), there is a double-roll refiner (4). On one side of the double-roll refiner (4), there is a second conveyor belt (5). Above the second conveyor belt (5), there is a second feeding port (6). On one side of the second conveyor belt (5), there is a filter (7). On one side of the filter (7), there is a third conveyor belt (8). Above the third conveyor belt (8), there is a third feeding port (9). Below the third conveyor belt (8), there is a first refiner (11). On the side of the first refiner (11), there is a second refiner (12). Above the space between the first refiner (11) and the second refiner (12), there is a positive and negative two-way conveyor belt (10).
2. The device for continuously refining desulfurized rubber powder to efficiently prepare recycled rubber according to claim 1, wherein: The double-roll refiner (4) includes a double-roll refiner body (41), above which there is a second feed port (42). Inside the double-roll refiner body (41), there is a first rotating roll (43). On the side of the first rotating roll (43), there is a second rotating roll (44). At one end of the second rotating roll (44), there is a first cylinder (45). Below one side of the first rotating roll (43) away from the second rotating roll (44), there is a second discharge port (46).
3. The device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder according to claim 2, characterized in that: Both the first rotating roll (43) and the second rotating roll (44) are driven by a driving motor. The first cylinder (45) is located on the side of the motor on the side of the second rotating roll (44) and they are fixedly connected. The second discharge port (46) is located above the second conveyor belt (5). The second rotating roll (44) is movably connected to the double-roll refiner body (41).
4. A device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder according to claim 1, characterized in that: The first refining machine (11) has the same mechanism as the second refining machine (12). The first refining machine (11) includes a refining machine body (111). A bracket (112) is provided on the side of the refining machine body (111). A first moving roller (113) is provided on one side of the bracket (112). A second moving roller (114) is provided on the side of the bracket (112) away from the first moving roller (113). An inverted U-shaped housing (119) is provided on the side of the second moving roller (114). A third moving roller (115) is fixedly connected inside the inverted U-shaped housing (119). A winding roller (116) is provided on the side of the third moving roller (115). A cutting knife (117) is provided between the winding roller (116) and the third moving roller (115). A second cylinder (118) is provided above the cutting knife (117).
5. The device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder according to claim 4, characterized in that: The second cylinder (118) is fixedly connected to the inverted U-shaped housing (119), and the winding roller (116) is movably connected to the inverted U-shaped housing (119).
6. The device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder according to claim 2, wherein: The first discharge port (36) is located above the first conveyor belt (1). One end of the first conveyor belt (1) is located above the second feed port (42). One end of the forward and reverse two-way conveyor belt (10) is located below the third conveyor belt (8).
7. The device for continuously refining and efficiently preparing recycled rubber from desulfurized rubber powder according to claim 1, wherein: The conveyor belt materials of the first conveyor belt (1), the second conveyor belt (5), the third conveyor belt (8), and the forward and reverse two-way conveyor belt (10) are all made of iron.