CN204261786U - A kind of plastic grinder - Google Patents

Abstract

The utility model relates to a plastic mill, which comprises a milling chamber, a screening device and a dust removal mechanism. The milling chamber is respectively provided with a material inlet and a material outlet. The dust removal mechanism includes an induced draft fan and a cyclone separator. and a bag-type dust collector, the two ends of the induced draft fan communicate with the cyclone separator and the bag-type dust collector through pipes, the discharge port communicates with the cyclone separator through a material delivery pipe, and the bag-type dust collector includes an upper shell , a lower shell and a dust bag, the dust bag is connected between the upper shell and the lower shell, the top of the upper shell is also provided with an air outlet pipe, and the end of the air outlet pipe is provided with a filter. Compared with the prior art, the plastic mill of the utility model has high safety in use and no pollution to the workshop environment.

Description

A plastic grinding machine

technical field

The utility model belongs to the technical field of plastic processing machinery, in particular to a plastic mill.

Background technique

In the field of plastic processing technology, mechanical pulverization is often used to produce thermoplastic powder, and the most common one is plastic mill. Usually plastic mill includes three parts, namely crushing device, screening device and dust removal mechanism. Among them, the function of the dust removal mechanism is to remove the dust in the plastic powder to obtain clean plastic powder. However, the requirement for the dust removal mechanism is to prevent the pollution of the workshop environment caused by dust removal under the premise of ensuring the removal of dust in the plastic powder.

Common dust removal mechanisms in the prior art include induced draft fan, cyclone separator and bag filter, wherein the cyclone separator is used to separate the dust in the plastic powder from the plastic powder, and the induced draft fan sucks the separated dust out of the cyclone separator, The bag filter is used to collect the separated dust to prevent it from polluting the workshop environment. Since the dust is blown into the bag filter along with the wind blown by the induced draft fan, when there is a lot of dust collected in the bag filter, the dust is easy to roll in the bag filter, thus blocking the bag filter The air outlet hole of the dust collector will cause poor exhaust, which will cause dust leakage and pollute the workshop environment, and cause the bag filter bag to burst.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and propose a plastic mill with high safety and no pollution to the workshop environment.

In order to achieve the above object, the utility model adopts the following technical solutions:

A plastic mill, comprising a milling chamber, a screening device and a dust removal mechanism, the milling chamber is respectively provided with a feed inlet and a discharge outlet, and the dust removal mechanism includes an induced draft fan, a cyclone separator and a bag type dust collector The two ends of the induced draft fan are respectively connected with the cyclone separator and the bag filter through the pipeline, the discharge port of the milling chamber is connected with the cyclone separator through the feeding pipe, and the bag filter includes the upper A shell, a lower shell and a dust bag, the dust bag is connected between the upper shell and the lower shell, the top of the upper shell is also provided with an air outlet pipe, and the end of the air outlet pipe is provided with a filter.

Compared with the prior art, the upper shell of the bag filter of the plastic pulverizer of the utility model is provided with an air outlet pipe and a filter. When the pulverizer is working, the induced draft fan blows the dust separated from the cyclone separator. In the bag-type dust collector, the dust enters the dust bag and the air outlet pipe with the wind, and the wind is discharged from the dust bag or filter to the workshop, and the dust is left in the dust bag and the air outlet pipe. Due to the effect of gravity, the air outlet pipe The dust in the dust bag will eventually fall into the dust bag; when the dust in the dust bag gathers a lot, most of the airflow will be discharged from the outlet pipe, so that the airflow in the dust bag is small, and the dust will not roll in the dust bag. It will not cause the air outlet of the dust bag to be blocked. Because the utility model adds the upper air outlet pipe, the air outlet hole of the bag filter will not be blocked during operation, thus improving the safety of use and preventing dust from polluting the workshop environment.

The above-mentioned filter is preferably a filter cloth bag, and the filter cloth bag is fastened at the end of the air outlet pipe for blocking dust leakage and allowing wind to pass through. It has the advantages of convenient installation, economic benefits and easy replacement.

The above-mentioned air outlet pipe is preferably a plastic hose. Due to the flexibility of the plastic hose, the orientation of the end of the hose can be changed arbitrarily, which is convenient for installation and use.

There are more than 2 dust-removing bags, which can increase the dust-removing efficiency; preferably 5, and the 5 dust-removing bags are arranged in a rectangular shape. The rectangular arrangement can minimize the volume of the bag filter, so that the structure of the bag filter is compact.

As a preferred manner, the feeding port of the milling chamber is arranged above the milling chamber, and the outlet of the milling chamber is arranged at one side of the milling chamber.

As a preferred manner, a hopper is connected above the feed inlet. The hopper enlarges the feeding opening, which makes feeding convenient.

As a preferred manner, a communicating return pipe is provided between the screening device and the milling chamber. The return pipe can return the plastic powder that does not meet the specifications after screening to the grinding chamber for grinding.

Description of drawings

Fig. 1 is the front view of a kind of plastic mill of the present utility model;

Fig. 2 is the right side view of a kind of plastic mill of the present utility model;

Fig. 3 is a top view of the arrangement of filter bags of a plastic mill of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model will be further described:

With reference to shown in accompanying drawing 1-3, a kind of plastic mill comprises milling chamber 1, screening device 2 and dedusting mechanism, and described milling chamber 1 is respectively provided with feed port 12 and discharge port 11, so The dedusting mechanism includes an induced draft fan 32, a cyclone separator 31 and a bag filter. 11 communicates with the cyclone separator 31 through the delivery pipe 4, and the bag filter includes an upper shell 33, a lower shell 35 and a dust bag 34, and the dust bag 34 is connected between the upper shell 33 and the lower shell 35, so An air outlet pipe 36 is also provided on the top of the upper shell 33 , and a filter 37 is provided at the end of the air outlet pipe 36 .

The filter 37 is a filter bag, and the filter bag is fastened at the end of the air outlet pipe 36 . The air outlet pipe 36 is a plastic hose. There are 5 dust removal bags 34, and the 5 dust removal bags 34 are arranged in a rectangular shape.

The feed port 12 of the milling chamber is arranged above the milling chamber 1 , and the outlet 11 of the milling chamber is arranged at one side of the milling chamber 1 . A hopper 13 is connected above the feed inlet 12 . A return pipe 21 is provided between the screening device 2 and the milling chamber 1 .

Compared with the prior art, the upper shell of the bag filter of the plastic pulverizer of the utility model is provided with an outlet pipe and a filter. When the pulverizer is working, the induced draft fan blows the dust separated from the cyclone separator. In the bag-type dust collector, the dust enters the dust bag and the air outlet pipe with the wind, and the wind is discharged from the dust bag or filter to the workshop, and the dust is left in the dust bag and the air outlet pipe. Due to the effect of gravity, the air outlet pipe The dust in the dust bag will eventually fall into the dust bag; when the dust in the dust bag gathers a lot, most of the airflow will be discharged from the outlet pipe, so the airflow in the dust bag is small, and the dust will not appear in the dust bag. It will not cause the air outlet of the dust bag to be blocked. Because the utility model adds the upper air outlet pipe, the air outlet hole of the bag filter will not be blocked during operation, thus improving the safety of use and further preventing dust from polluting the workshop environment.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (8)

1. a plastic grinder, comprise milling compartment, screening plant and dedusting mechanism, described milling compartment is respectively equipped with charging aperture and discharging opening, described dedusting mechanism comprises air-introduced machine, cyclone separator and sack cleaner, the two ends of described air-introduced machine are communicated with sack cleaner with cyclone separator respectively by pipeline, the discharging opening of described milling compartment is communicated with cyclone separator by conveying pipeline, it is characterized in that, described sack cleaner comprises upper casing, lower casing and dust settling pocket, described dust settling pocket is communicated between upper casing and lower casing, the top of described upper casing is also provided with escape pipe, the end of described escape pipe is provided with filter.

2. a kind of plastic grinder according to claim 1, is characterized in that, described filter is filter cloth bag.

3. a kind of plastic grinder according to claim 1 and 2, is characterized in that, described escape pipe is plastic flexible pipe.

4. a kind of plastic grinder according to claim 1, is characterized in that, described dust settling pocket is provided with two or more.

5. a kind of plastic grinder according to claim 4, is characterized in that, dust settling pocket is provided with 5, and 5 rectangular arrangements of dust settling pocket.

6. a kind of plastic grinder according to claim 1, is characterized in that, the charging aperture of described milling compartment is located at the top of milling compartment, and the discharging opening of described milling compartment is located at the side of milling compartment.

7. a kind of plastic grinder according to claim 5, is characterized in that, the top of the charging aperture of described milling compartment is connected with hopper.

8. a kind of plastic grinder according to claim 1, is characterized in that, is provided with the feed back pipe be communicated with between described screening plant with described milling compartment.