Multi-grading-head depolymerization modification equipment

Abstract

The utility model relates to multi-grading-head depolymerization modification equipment which comprises a main machine and an upper cylinder body fixedly connected to the top of the main machine, a grinding mechanism is arranged in the main machine, and a feeding pipe is arranged on the side face of the main machine, and is characterized in that a plurality of independent grading cavities are formed in the upper cylinder body, and the bottom of each grading cavity is communicated with the main machine; the top of each grading cavity is connected with a built-in grading machine, each built-in grading machine is driven by a motor located above the corresponding grading cavity to rotate, and a discharging opening is formed in the position, corresponding to each built-in grading machine, of the top of each grading cavity. According to the utility model, a plurality of independent grading cavities are built in, so that the interference of airflow on grading is reduced, the grading granularity tangency point is more accurate, and the depolymerization effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of depolymerization modification, in particular to a multi-classifier head depolymerization modification device. Background Art

[0002] In the existing depolymerization modification device, there is only one classification cavity in the cylinder body located at the top of the grinding main machine. The air flow inside the cavity has a great interference on classification, making the classification particle size cut-off point inaccurate and unable to ensure the depolymerization effect. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multi-classifier head depolymerization modification device.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The multi-classifier head depolymerization modification device includes a main machine and an upper cylinder body fixedly connected to the top of the main machine. The main machine internally has a grinding mechanism, and a feed pipe is arranged on the side of the main machine. The upper cylinder body internally has a plurality of independent classification cavities. The bottom of each classification cavity is communicated with the main machine, and the top of each classification cavity is respectively connected with an internal classifier. Each internal classifier is driven to rotate by a motor located above the corresponding classification cavity. An outlet is respectively arranged at the top of each classification cavity corresponding to each internal classifier.

[0006] Further, an upper bearing seat is arranged between the output shaft of the motor and the motor bracket, and a lower bearing seat is arranged between the output shaft of the motor and the connecting seat inside the upper cylinder body; the upper bearing seat and the lower bearing seat are respectively provided with a water cooling structure.

[0007] Further, a return material mechanism is connected between the upper cylinder body and the feed pipe. The return material mechanism includes a return material pipe, a rotary air lock valve, and a three-way pipe connected in sequence. The upper port of the three-way pipe is connected to the lower port of the rotary air lock valve. One lower port of the three-way pipe is a slag discharge port, and the other lower port of the three-way pipe is a return material port. A switching door is arranged at the intersection of the return material port and the slag discharge port, and the lower end of the return material port is connected to the feed pipe.

[0008] Further, the outlets at the top of each classification cavity are respectively converged and connected to a total outlet.

[0009] Further, a maintenance door is arranged on the side of the upper cylinder body.

[0010] The utility model adopts the above technical solutions and has the following beneficial effects:

[0011] 1. A multi-head vertical classifier is arranged inside the upper cylinder body: multiple independent classification cavities are arranged, reducing the interference of air flow on classification, making the classification particle size cut-off point more accurate, and ensuring the depolymerization effect;

[0012] 2. During the production process, the unqualified particles intercepted by the built-in classifier are returned to the main machine for grinding again through the material return mechanism of the upper cylinder. The external discharge function can also be selected to discharge the particles that are difficult to grind finely from the main machine, thereby improving production capacity and reducing energy consumption;

[0013] 3. This equipment integrates depolymerization and modification. The system is heated, and under the high-speed rotation of the main machine rotor, it is instantly depolymerized and dispersed, and at the same time, the powder is modified and coated. Two processes are completed at one time, so that the energy-saving effect can be achieved;

[0014] 4. The upper cylinder adopts a structure with a larger upper part and a smaller lower part, which has a larger inner cavity space compared with the original straight cylinder, providing sufficient space for modification and enhancing its modification effect;

[0015] 5. The bearing seat of the built-in classifier is designed with a water-cooling structure to ensure stable working conditions for various high-temperature modification processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 is the front view of the present invention;

[0018] Figure 2 is the side view of the present invention. SPECIFIC EMBODIMENTS

[0019] As Figure 1-2 shown, the multi-classifier head depolymerization and modification equipment of the present invention includes a main machine 1 and an upper cylinder 2 fixedly connected to the top of the main machine 1. The main machine 1 is internally provided with a grinding mechanism. A feed pipe 4 is provided on the side of the main machine 1. The upper cylinder 2 is internally provided with a plurality of independent classification cavities 5. In this embodiment, there are three independent classification cavities 5. The bottom of each classification cavity 5 is communicated with the main machine 1. The top of each classification cavity 5 is respectively connected with a built-in classifier 6. Each built-in classifier 6 is driven to rotate by a motor 7 located above the corresponding classification cavity 5. Discharge ports 8 are respectively provided at the top of each classification cavity 5 corresponding to each built-in classifier 6. The discharge ports 8 are respectively converged and connected to a total discharge port 9.

[0020] The upper cylinder 2 adopts a structure with a larger upper part and a smaller lower part, which has a larger inner cavity space compared with the original straight cylinder, providing sufficient space for modification and enhancing its modification effect.

[0021] An inspection door 3 is provided on the side of the upper cylinder 2 for convenient inspection.

[0022] There is an upper bearing seat 11 between the output shaft of the motor 7 and the motor bracket, and a lower bearing seat 12 between the output shaft of the motor 7 and the connecting seat inside the upper cylinder body 2. The upper bearing seat 11 and the lower bearing seat 12 are respectively provided with water cooling structures to provide a stable working condition guarantee for various high-temperature modification processes.

[0023] A return material mechanism 10 is connected between the cylinder body and the feed pipe 4. The return material mechanism 10 includes a return material pipe 13, a rotary air lock valve (also called a discharger) 14 and a three-way pipe 10 connected in sequence. The upper port 101 of the three-way pipe 10 is connected to the lower port of the rotary air lock valve 14. One lower port of the three-way pipe 10 is a slag discharge port 102, and the other lower port of the three-way pipe 10 is a return material port 103. A switching door 104 is provided at the junction of the return material port 103 and the slag discharge port 102. The lower end of the return material port 103 is connected to the feed pipe 4. Among them, the switching door 104 can be controlled to act by a pneumatic mechanism or an electric mechanism. When the switching door 104 switches to connect the upper port 101 of the three-way valve with the return material port 103, some agglomerated and unbroken or some other large-particle materials re-enter the main machine 1 and are ground and dispersed again. When the switching door 104 switches to connect the upper port 101 of the three-way valve with the slag discharge port 102, the particles that are difficult to grind finely are discharged from the equipment.

[0024] In the present utility model, a plurality of independent classification cavities 5 are designed inside the upper cylinder body 2, reducing the interference of air flow on classification, making the classification particle size cut-off point more accurate, and thus ensuring the depolymerization effect. An internal classifier 6 is designed in each classification cavity 5. When performing the depolymerization process, large particles can be intercepted and qualified particle size products can be screened. The large particles return to the main machine 1 for crushing again through the return material mechanism 10 of the upper cylinder body 2; when performing the modification coating process, agglomerated large particles can be intercepted and returned to the main machine 1 through the return material mechanism 10 for re-dispersing.

[0025] The specific implementation manners of the present utility model have been described above. However, those skilled in the art should understand that this is only an example. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to this implementation manner, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A multi-classification head depolymerization and modification device, comprising a main machine and an upper cylinder fixedly connected to the top of the main machine, a grinding mechanism is provided inside the main machine, and a feed pipe is provided on the side of the main machine, characterized in that: The upper cylinder has a plurality of independent grading cavities inside, the bottom of each grading cavity is connected to the main machine, the top of each grading cavity is connected to a built-in classifier, each built-in classifier is driven to rotate by a motor located above the corresponding grading cavity, and a discharge port is provided at the top of each grading cavity corresponding to each built-in classifier.

2. The multi-stage head depolymerization and modification equipment according to claim 1, characterized in that: An upper bearing seat is arranged between the output shaft of the motor and the motor bracket, and a lower bearing seat is arranged between the output shaft of the motor and the connecting seat inside the upper cylinder; the upper bearing seat and the lower bearing seat are respectively provided with water cooling structures.

3. The multi-stage head depolymerization and modification equipment according to claim 1 is characterized in that: A return mechanism is connected between the upper cylinder and the feed pipe, and the return mechanism includes a return pipe, a blower and a tee pipe which are connected in sequence, an upper port of the tee pipe is connected to a lower port of the blower, a lower port of the tee pipe is a slag discharge port, and the other lower port of the tee pipe is a return port. A switching gate is provided at the junction of the return port and the slag discharge port, and the lower end of the return port is connected to the feed pipe.

4. The multi-stage head depolymerization and modification equipment according to claim 1, characterized in that: The discharge ports at the top of each grading cavity are respectively connected to the main discharge port.

5. The multi-stage head depolymerization and modification equipment according to claim 1 is characterized in that: An inspection door is provided on the side of the upper cylinder.

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