CN207240839U - A kind of useless film blown film regenerative system - Google Patents

Abstract

The utility model discloses a regeneration system for blown film of waste film, which comprises successively connected pulverizers, a material bin with an auxiliary agent metering device, a rotary centrifugal compacting bin, a metering pump, a die head of a blown film machine, and a winder . The waste film blown film regeneration system of the utility model has the advantages of fewer procedures, energy saving and environmental protection.

Description

A waste film blown film regeneration system

technical field

The utility model relates to the technical field of plastic film production, in particular to a waste film blowing regeneration system.

Background technique

At present, in the recycling of waste films, granulation needs to be carried out first, that is to say, the waste films are made into film particles, and then the film particles are processed into films after granulation. However, washing with water is required during the granulation process, which will cause serious environmental pollution, and there are complicated processes in the middle, which need to consume a lot of energy, which does not conform to the production concept of energy saving and environmental protection.

In order to solve the above problems, this case was born.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a waste film blown film recycling system with less process, energy saving and environmental protection.

In order to achieve the above object, the technical scheme of the utility model is as follows: a waste film blown film regeneration system, including a pulverizer connected in sequence, a feed bin with an auxiliary agent metering device, a rotating centrifugal compacting bin, a metering pump, a blown Film machine die head, winder.

Further, a filter is arranged between the centrifugal compaction chamber and the metering pump.

Further, the centrifugal compaction bin is connected with the filter through a screw conveyor.

Further, the rotary centrifugal compaction chamber includes a fully-sealed chamber shell, and the upper and lower layers of rotary cutterheads are horizontally arranged in the chamber shell, and the two layers of rotary cutterheads are installed on the rotating shaft and driven by a motor to rotate synchronously. A material extrusion space is formed between the two layers of rotary cutter heads, and the outer peripheral wall of the rotary cutter head is matched with the inner wall of the bin shell. A plurality of blades are arranged radially and equiangularly on the mounting surface of the tool holder. On the upper rotary cutter head, a hole is respectively opened on the front side of each blade. The holes are next to the corresponding blade and rotate along the The rotation direction of the type cutterhead extends obliquely downward and runs through the thickness direction of the cutter holder.

Further, the silo is located above the rotary centrifugal compacting silo, the top of the rotary centrifugal compacting silo is provided with a material inlet, the silo has a discharge port, the discharge port on the silo, the auxiliary agent metering device The auxiliary agent outlets are set up and down opposite to the material inlets on the rotary centrifugal compacting bin.

Further, the material inlet of the rotary centrifugal compacting bin is connected with a feeding pipe, and the upper end of the feeding pipe extends to be close to the outlet of the feeding bin.

Further, the material inlet is located on one side of the top of the rotary centrifugal compacting bin, and an exhaust fan is provided on the opposite side of the top of the rotary centrifugal compacting bin to the material inlet. The internal communication of the warehouse.

Further, a traction mechanism composed of several guide rollers is set between the die head of the film blowing machine and the winder.

Further, the inlet end of the filter is provided with a pressure sensor one, and the inlet end of the metering pump is provided with a pressure sensor two.

After adopting the above technical scheme, compared with the prior art, the utility model has the following advantages: the waste film blown film regeneration system of the utility model can directly process the waste film into a finished film, which saves the granulation process, and the whole production process Less process, low energy consumption, no environmental pollution, fully in line with the production concept of energy saving and environmental protection.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the internal structure of the rotary centrifugal compaction chamber.

Fig. 3 is a top view of the upper rotary cutter head.

Fig. 4 is a sectional view along A-A in Fig. 3 .

Fig. 5 is a top view of the lower rotary cutter head.

Fig. 6 is a cross-sectional view along B-B in Fig. 5 .

As shown in the figure: 1. Crusher 2, additive metering device 21, hopper 22, screw conveyor 3, silo 31, discharge port 32, screw conveying shaft 4, rotary centrifugal compacting bin 41, bin shell 42 , the upper rotary cutter head 43, the lower rotary cutter head 44, the tool holder 45, the blade 46, the hole 47, the rotating shaft 48, the material extrusion space 49, the motor 410, the temperature sensor 411, the material inlet 412, the door 5, Metering pump 6, film blowing machine die head 7, winder 8, filter 9, screw conveyor 10, feeding pipeline 11, exhaust fan 12, traction mechanism 13, pressure sensor one 14, pressure sensor two 15, conveying Pipeline 16, material fan 17, cooling jacket 171, cooling water inlet 172, cooling water outlet.

Detailed ways

Below by accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1: a waste film blown film recycling system, including a pulverizer 1 connected in sequence, a silo 3 with an additive metering device 2, a rotary centrifugal compaction bin 4, a metering pump 5, and a film blowing machine Die head 6, winder 7.

The pulverizer 1 is an existing technology, which is used to pulverize the waste film, and transport the pulverized material into the silo 3 through the conveying pipeline 15 . A material fan 16 is arranged between the material bin 3 and the conveying pipeline 15 , and the material in the conveying pipeline 15 can be blown to the inside of the material bin 3 through the material fan 16 .

The silo 3 is used to store materials, and cooperates with the auxiliary agent metering device 2 to deliver the materials and auxiliary agents to the rotary centrifugal compacting bin 4 at a certain ratio. In order to conveniently transport materials and additives into the rotary centrifugal compaction bin 4 , in this embodiment, the feed bin 3 is arranged above the rotary centrifugal compaction bin 4 . A material inlet 411 is provided on the top of the rotary centrifugal compaction chamber 4 . The bottom of the feed bin 3 is provided with a screw conveying shaft 32 . The output end of the screw conveying shaft 32 is the discharge port 31 of the feed bin 3 . Through the rotation of the screw conveying shaft 32 , the material inside the silo 3 can be output from the discharge port 31 . The auxiliary agent metering device 2 is composed of a hopper 21 and a screw conveyor 22 . The hopper 21 is fixed on the screw conveyor 22 and communicates with the inside of the screw conveyor 22 , the output end of the screw conveyor 22 is the auxiliary agent outlet of the auxiliary agent metering device 2 . The auxiliary agent in the hopper 21 can be output from the auxiliary agent outlet through the screw conveyor 22 . The material outlet 31 on the silo 3 and the auxiliary agent outlet of the auxiliary agent metering device 2 are set up and down opposite to the material inlet 411 on the rotary centrifugal compacting bin 4 . With such a design, both the material output from the discharge port 31 of the silo 3 and the auxiliary agent output from the auxiliary agent outlet of the auxiliary agent metering device 2 can just fall into the rotary centrifugal compacting bin 4 . During the specific implementation, it is only necessary to adjust the ratio of materials and additives. The additives are generally composed of brighteners, blocking agents, masterbatches and other substances.

As shown in FIGS. 2 to 6 , the rotary centrifugal compaction bin 4 includes a fully-sealed bin shell 41 . The upper and lower layers of rotary cutterheads are horizontally arranged in the bin shell 41 . The two-layer rotary cutter head is installed on the rotating shaft 47 and driven by a motor 49 to rotate synchronously. A material extruding space 48 is formed between the two layers of rotary cutterheads, and the outer peripheral wall of the rotary cutterheads fits with the inner wall of the bin shell 41 in a gap. Both the upper rotary cutter head 42 and the lower rotary cutter head 43 include a disc-shaped cutter holder 44 and three blades 45 . The three blades 45 are radially and equiangularly arranged on the mounting surface of the tool holder 44 in fan blade shape. Holes 46 are respectively opened on the tool holder 44 of the upper rotary cutter head 42 at the front side of each blade 45 . The above-mentioned front side of the blade 45 specifically takes the rotation direction of the rotary cutterhead as a reference direction (the direction indicated by the arrow in FIG. 3 is the rotation direction of the rotary cutterhead). The holes 46 are adjacent to the corresponding blades 45 and extend obliquely downward along the rotation direction of the rotary cutter head and through the thickness direction of the cutter holder 44 . With the high-speed rotation of the upper rotary cutter head 42, the material on the upper rotary cutter head 42 will be squeezed into the material extrusion space 48 through the hole 46 under the action of the blade 45, and the material will be squeezed into the material extrusion space 48 with the upper and lower rotary cutters twice. With the continuous rotation of the disk and the continuous flow of materials into the material extrusion space 48, the materials in the material extrusion space 48 will be rotated and extruded, thereby achieving the purpose of compaction. By crushing the film first and then sending it into the compaction bin, and extruding and rotating the compaction through the upper and lower two-layer rotary cutter head, the material is uniform in size and compacted, and there is no need to manually crush the material twice, which can effectively improve the processing efficiency , To ensure product quality.

A temperature sensor 410 is installed in the material extruding space 48, and a frequency converter is installed on the motor 49, and the temperature sensor 410 and the frequency converter are respectively connected with the main controller. As the material is continuously rotated and extruded, the temperature of the material will continue to rise. The temperature sensor 410 checks the temperature of the material in real time, and transmits the temperature signal to the main controller. Once the temperature exceeds the upper limit set by the main control, the main controller will reduce the speed of the motor 49 by controlling the frequency converter, thereby reducing the rotation speed. The rotation speed of the type cutter head can reduce the temperature of the material to avoid the material from melting due to excessive temperature.

A material outlet (not shown in the figure) is provided on the position corresponding to the material extruding space 48 on the bin shell 41, and a bin door 4 that can be opened and closed is arranged on the material outlet. The rotary centrifugal compacting bin 4 is connected to the filter 8 through a screw conveyor 9 . The screw conveyor 9 is prior art, and its feed port is connected with the material outlet on the rotary centrifugal compacting bin 4, and the discharge port is connected with the filter 8. Open the door 4 traction mechanism 12, along with the high-speed rotation of the upper and lower two-layer rotary cutter head, the material inside the material extrusion space 48 will be clamped and rotate at a high speed. After the door 4 is opened, the material inside the extrusion space 48 The material will be thrown to the feeding port of the screw conveyor 9 by centrifugal force, and then transported to the filter 8 by the screw conveyor 9.

The rotary centrifugal compacting chamber 4 is covered with a cooling jacket 17, and the cooling jacket 17 is provided with a cooling water inlet 171 and a cooling water outlet 172. The temperature of the rotary centrifugal compaction chamber 4 can be controlled by the cooling jacket 17, so that the rotary centrifugal compaction chamber 4 can always maintain an appropriate temperature, avoiding damage to the chamber body or affecting the quality of internal materials due to excessive temperature.

In order to smoothly introduce materials and additives into the rotary centrifugal compacting bin 4, in this embodiment, the material inlet 411 on the rotary centrifugal compacting bin 4 is connected with a feeding pipe 10, and the upper end of the feeding pipe 10 extends to Close to the discharge port 31 on the silo 3.

The material inlet 411 is located on one side of the top of the rotary centrifugal compacting bin 4 . The other side of the top of the rotary centrifugal compacting bin 4 opposite to the material inlet 411 is provided with an exhaust fan 11 , and the air outlet of the exhaust fan 11 communicates with the inside of the rotary centrifugal compacting bin 4 . With this design, in the process of feeding, the air inside the rotary centrifugal compacting bin 4 is continuously extracted by the exhaust fan 11, thereby reducing the resistance of the material falling, increasing the feeding speed, and ensuring that the feeding speed is the same as that of the upper bin 3. The feeding speed is matched to prevent the material from clogging at the material inlet 411 of the rotary centrifugal compacting bin 4.

A filter 8 is arranged between the centrifugal compacting chamber and the metering pump 5 . The filter 8 acts as a filter for the material to remove dust and impurities in the material, so as to make the processed film more pure. The metering pump 5 can control the output, that is, the amount of material entering the film head 6 of the film blowing machine, so as to ensure uniform and stable output.

The inlet of the filter 8 is provided with a pressure sensor 13, and the inlet of the metering pump 5 is provided with a pressure sensor 2 14, and the pressure sensor 13 and the pressure sensor 14 are respectively connected to the main controller. The screw conveyor 22 is a closed-loop control system. The pressure at the inlet of the filter 8 and the inlet of the metering pump 5 is checked respectively by the pressure sensor 13 and the pressure sensor 2 14, and fed back to the main controller, and then the main controller controls the extrusion speed of the screw conveyor 22 according to the detected pressure , so as to ensure that the amount of material supplied to the die head 6 of the film blowing machine is uniform and stable.

A traction mechanism 12 composed of several guide rollers is arranged between the die head 6 of the film blowing machine and the winder 7 . Through the traction mechanism 12, the film processed from the die head 6 of the film blowing machine can be introduced into the winder 7 in a smooth and orderly manner, and wound up by the winder 7 . Film blowing machine die head 6 is prior art, is used for material is processed into film.

The working steps of the waste film blown film regeneration system of the utility model are as follows:

1. Put the waste film into the pulverizer 1 for pulverization, and send it into the hopper 21 after pulverization;

2. Send the pulverized materials and additives into the rotary centrifugal compacting bin 4 in a certain proportion;

3. The material is rotated and compacted in the rotary centrifugal compacting chamber 4 to achieve the density required for the processing of the membrane head of the film blowing machine. After compaction, it is transported to the filter 8 by the screw conveyor 9;

4. Filter through the filter 8 to remove dust and impurities in the material, and send it to the die head 6 of the film blowing machine through the metering pump 5;

5. Process the film into a film through the die head 6 of the film blowing machine, and guide the film into the winder 7 through the traction mechanism 12 for winding to complete the entire work process.

The waste film blowing regeneration system of the utility model can directly process the waste film into a finished film, which saves the granulation process. The whole production process has less procedures, low energy consumption, and no environmental pollution, which fully conforms to the production concept of energy saving and environmental protection.

The above description is based on the embodiment as inspiration, and through the above description content, relevant workers can completely make various changes and modifications within the scope of not departing from the idea of the invention. The technical scope of this utility model is not limited to the content in the description, and the scope of protection must be determined according to the scope of the claims.

Claims (8)

1. A kind of 1. useless film blown film regenerative system, it is characterised in that：Including be sequentially connected pulverizer, with auxiliary agent metering device Feed bin, rotary and centrifugal type compacting storehouse, metering pump, die head of film blowing machine, winder；The rotary and centrifugal type compacting storehouse includes complete close The storehouse shell closed, in the shell of storehouse lower horizontal set up and down two layers of rotating cutter head, two layers of rotating cutter head be installed in rotation axis, and Synchronous rotary is driven by motor, material extruding space, and the periphery wall of rotating cutter head are formed between two layers of rotating cutter head With the inner wall clearance fit of storehouse shell, upper and lower two layers of rotating cutter head includes discoid knife rest and multiple blades, multiple blades Radially angularly it is arranged on the mounting surface of knife rest, the front side of each blade is located on the knife rest of the rotating cutter head on upper strata Hole is offered respectively, and hole is close to corresponding blade and extends through knife rest obliquely along the direction of rotation of rotating cutter head Thickness direction.
2. A kind of 2. useless film blown film regenerative system according to claim 1, it is characterised in that：It is described it is centrifugal compacting storehouse with Filter is provided between metering pump.
3. A kind of 3. useless film blown film regenerative system according to claim 2, it is characterised in that：It is described it is centrifugal compacting storehouse with It is connected between filter by screw conveyer.
4. A kind of 4. useless film blown film regenerative system according to claim 1, it is characterised in that：The feed bin positioned at rotation from Core type is compacted the top in storehouse, and rotary and centrifugal type compacting is provided with material inlet at the top of storehouse, and feed bin has a discharge port, on feed bin The auxiliary agent outlet of discharge port, auxiliary agent metering device is oppositely arranged up and down with the material inlet on rotary and centrifugal type compacting storehouse.
5. A kind of 5. useless film blown film regenerative system according to claim 4, it is characterised in that：The rotary and centrifugal type compacting Blanking pipe is connected with material inlet on storehouse, the upper end of blanking pipe extends close to the discharge port on feed bin.
6. A kind of 6. useless film blown film regenerative system according to claim 5, it is characterised in that：The material inlet is positioned at rotation The side of core type compacting the top of the warehouse is left, the rotary and centrifugal type compacting the top of the warehouse opposite side opposite with material inlet is provided with exhausting Machine, the suction opening of exhaust fan are connected with the inside in rotary and centrifugal type compacting storehouse.
7. A kind of 7. useless film blown film regenerative system according to claim 1, it is characterised in that：The die head of film blowing machine is with receiving The haulage gear of some deflector roll compositions is provided between volume machine.
8. A kind of 8. useless film blown film regenerative system according to claim 2, it is characterised in that：The arrival end of the filter It is provided with pressure sensor one, the arrival end of metering pump is provided with pressure sensor two.