Pelletizing device for polyphenylene sulfide

Abstract

The utility model relates to the technical field of polyphenylene sulfide production, and discloses a polyphenylene sulfide granulating device which comprises an extruder, a cooling tank is arranged on the front side of the extruder, a granulator is arranged on the front side of the cooling tank, a cooling assembly is arranged on the front side of the granulator, and the cooling assembly comprises a cooling bin fixed on the front side of the granulator. The top face of the cooling bin communicates with and is fixedly provided with a feeding bin, and an inclined screen is arranged in the feeding bin. According to the waste gas treatment device, cut particles are screened and filtered through the inclined screen, the air heater inputs airflow into the air inlet pipe and the cooling bin and air-dries the particles, the waste gas treatment pipe is obliquely communicated with the outer wall of the air inlet pipe, and when the air heater inputs the airflow into the air inlet pipe, negative pressure can be generated in the waste gas treatment pipe, so that the particles are dried. And therefore, waste gas generated on the cooling tank is absorbed by the air suction hopper and is filtered by the activated carbon filter screen, the obstruction of the purification pipe on airflow in the air inlet pipe is reduced, and the air drying effect on particles is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyphenyl sulfide production technical field especially relates to a kind of granulating device of polyphenyl sulfide. BACKGROUND

[0002] Polyphenyl sulfide is the thermoplastic resin of molecular main chain by para-phenylene and sulfur atom, with high temperature resistance, radiation resistance, flame retardant, low viscosity, high dimensional stability, good solvent resistance and chemical corrosion resistance, excellent dielectric properties and wear resistance and other characteristics, polyphenyl sulfide needs to use granulating equipment when producing.

[0003] The existing polyphenyl sulfide granulating device (announcement number: CN214982370U) at least has the following disadvantages: the device collects and filters the exhaust gas generated in the extruder extrusion process through the air suction pipeline, and the treated gas is used for drying the strip-shaped plastic, but directly drying the strip-shaped plastic will make the strip-shaped plastic more hard, so that the cutting of subsequent granulator is difficult, which may cause uneven particle size and affect the quality of the final product, and directly setting the purification and filtration mechanism in the air suction pipeline will cause great obstruction to the air suction pipeline, thereby affecting the exhaust and reducing the drying effect on the plastic particles, and therefore the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides a kind of polyphenyl sulfide granulating device.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of polyphenyl sulfide granulating device, including extruder, the front side of the extruder is provided with cooling tank, the front side of cooling tank is provided with granulator, the front side of granulator is provided with cooling assembly, cooling assembly includes cooling bin fixed in the front side of granulator, the top surface of cooling bin is communicated and fixed with feed bin, the inside of feed bin is provided with inclined screen, the upper of cooling tank is provided with air suction hopper, the right side of cooling bin is communicated and fixed with air intake hopper, the left side of cooling bin is provided with exhaust hole.

[0007] As a further scheme of the utility model, the right end of the air intake hopper is communicated and fixed with air intake pipe, the rear end of the air intake pipe is fixed with a hot air machine, the top end of the air suction hopper is communicated and fixed with an exhaust gas treatment pipe, the exhaust gas treatment pipe is composed of two sections of pipes, a purification pipe is detachably installed between the two sections of pipes, a plurality of activated carbon filter screens are fixed in the purification pipe, the end of the exhaust gas treatment pipe away from the air suction hopper is communicated and fixed with the outer wall of the air intake pipe close to the hot air machine, and the angle between the exhaust gas treatment pipe and the axis of the air intake pipe is forty-five degrees.

[0008] As a further scheme of the utility model, the front and back sides of the cooling bin are provided with extension holes, the bottom surface of the inclined screen is fixed with a connecting rod, one end of the connecting rod penetrates through the extension hole at the back side of the cooling bin and extends to the back side of the cooling bin, and the back side of the connecting rod is fixed with a vibration motor.

[0009] As a further scheme of the utility model, the bottom surface of the inclined screen is fixed with a plurality of limiting rods close to the front and back sides, the limiting rods are slidably inserted into the inner bottom surface of the extension hole, the outer wall of the limiting rod is movably sleeved with a tension spring, and the top end and the bottom end of the tension spring are fixed to the bottom surface of the inclined screen and the inner bottom surface of the extension hole respectively.

[0010] As a further scheme of the utility model, the inner part of the air outlet hole is fixed with a first filter screen, and the air inlet end of the hot air fan is fixed with a second filter screen.

[0011] As a further scheme of the utility model, the front side of the cooling bin is provided with a waste box in a matched mode, the opening of the waste box is communicated with the extension hole at the front side of the cooling bin, and the bottom surface of the cooling bin is provided with a material collecting box in a matched mode.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By arranging the cooling bin at the outlet end of the pelletizer, the polyphenylene sulfide particles cut out by the pelletizer enter the inside of the cooling bin, and the cut-out particles are screened and filtered through the inclined screen. The particles screened out in this process fall downward in the cooling bin. In this process, the hot air fan is started to input airflow into the inside of the air inlet pipe and the cooling bin, and the particles are air dried, effectively preventing the direct drying of the uncut strip-shaped polyphenylene sulfide, which leads to the difficulty of cutting the particles by the pelletizer and affects the production quality due to the unevenness of the strip-shaped polyphenylene sulfide. Meanwhile, by arranging the exhaust treatment pipe in a slanting mode outside the air inlet pipe, negative pressure is generated in the inside of the exhaust treatment pipe during the input of airflow into the inside of the air inlet pipe by the hot air fan, so that the exhaust gas generated on the cooling tank is absorbed by the air suction hopper and filtered through the activated carbon filter screen, thereby effectively reducing the obstruction of the purification pipe to the airflow in the inside of the air inlet pipe and increasing the air drying effect on the particles. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the granulating device for polyphenylene sulfide is provided for the utility model;

[0015] Figure 2 A three-dimensional structure schematic view of the air inlet pipe and the exhaust treatment pipe of the granulating device for polyphenylene sulfide is provided for the utility model;

[0016] Figure 3 A three-dimensional structure schematic view of the cooling bin of the granulating device for polyphenylene sulfide is provided for the utility model;

[0017] Figure 4 For Figure 3 The local stereostructure of A is enlarged and schematically shown.

[0018] In the figure: 1, extruder; 101, cooling tank; 102, granulator; 2, cooling bin; 201, feeding bin; 202, inclined screen; 203, air suction hopper; 204, air inlet hopper; 205, air outlet hole; 206, hot air machine; 207, air inlet pipe; 208, waste gas treatment pipe; 209, purification pipe; 210, activated carbon filter screen; 3, extension hole; 301, connecting rod; 302, vibration motor; 4, limiting rod; 401, tension spring; 5, first filter screen; 501, second filter screen; 6, waste box; 601, material collecting box. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As Figures 1-4As shown, a kind of polyphenyl sulfide granulating device, including extruder 1, the front side of the extruder 1 is provided with cooling tank 101, the front side of cooling tank 101 is provided with granulator 102, the front side of granulator 102 is provided with cooling assembly, cooling assembly includes cooling bin 2 fixed in the front side of granulator 102, the top surface of cooling bin 2 is communicated and fixed with feeding bin 201, the inside of feeding bin 201 is provided with inclined screen 202, the upper portion of cooling tank 101 is provided with suction hopper 203, the right side of cooling bin 2 is communicated and fixed with air inlet 204, the left side of cooling bin 2 is provided with exhaust hole 205.

[0023] As shown, Figures 2-4 In the embodiment, the right end of the air inlet 204 is communicated and fixed with the air inlet pipe 207, the rear end of the air inlet pipe 207 is fixed with the hot air machine 206, the top end of the suction hopper 203 is communicated and fixed with the waste gas treatment pipe 208, the waste gas treatment pipe 208 is composed of two sections of pipes, the purification pipe 209 is detachably installed between the two sections of pipes, a plurality of activated carbon filter screens 210 are fixed in the inside of the purification pipe 209, the end of the waste gas treatment pipe 208 away from the suction hopper 203 is communicated and fixed with the outer wall of the air inlet pipe 207 close to the hot air machine 206, the included angle between the waste gas treatment pipe 208 and the axis of the air inlet pipe 207 is forty-five degrees, by setting the cooling bin 2 at the outlet end of the granulator 102, the polyphenyl sulfide particles cut out by the granulator 102 enter the inside of the cooling bin 2, and the cut-out particles are screened and filtered by the inclined screen 202, the particles screened out in the process fall down in the inside of the cooling bin 2, the hot air machine 206 is started in the process to input airflow into the inside of the air inlet pipe 207 and the cooling bin 2, and the particles are air-dried, effectively preventing the direct drying of the uncut strip-shaped polyphenyl sulfide to cause the difficulty of cutting the particles by the granulator 102, and effectively preventing the uneven strip-shaped polyphenyl sulfide to affect the production quality, simultaneously, by incliningly communicating the waste gas treatment pipe 208 with the outer wall of the air inlet pipe 207, negative pressure appears in the inside of the waste gas treatment pipe 208 in the process of inputting airflow into the inside of the air inlet pipe 207 by the hot air machine 206, so that the suction hopper 203 absorbs the waste gas generated on the cooling tank 101 and filters the waste gas by the activated carbon filter screen 210, thereby effectively reducing the obstruction of the airflow in the inside of the air inlet pipe 207 by the purification pipe 209, and increasing the air-drying effect on the particles.

[0024] As shown, Figures 2-4 In the embodiment, the front and rear sides of the cooling bin 2 are provided with extension holes 3, the bottom surface of the inclined screen 202 is fixed with connecting rod 301, one end of the connecting rod 301 penetrates through the extension hole 3 of the rear side of the cooling bin 2 and extends to the rear side of the cooling bin 2, the rear side of the connecting rod 301 is fixed with vibration motor 302, the vibration motor 302 is set to drive the connecting rod 301 to vibrate quickly, so as to constantly lift the vibrating inclined screen 202, and increase the filtering effect of the inclined screen 202 on the particles.

[0025] As Figures 2-4 shown in the embodiment, the bottom surface of the inclined screen 202 is fixed near the front and rear sides, and a plurality of limiting rods 4 are fixed on the bottom surface. The limiting rods 4 are slidably inserted into the inner bottom surface of the extension hole 3. The outer wall of the limiting rod 4 is movably sleeved with a pull spring 401. The top end and the bottom end of the pull spring 401 are fixed to the bottom surface of the inclined screen 202 and the inner bottom surface of the extension hole 3, respectively. The limiting rod 4 is slidably inserted into the inner bottom surface of the extension hole 3, thereby limiting the inclined screen 202. The pull spring 401 can make the inclined screen 202 be subjected to the elastic force of the pull spring 401, so that the inclined screen 202 is shaken more quickly, and the filtering effect of the inclined screen 202 on the particles is increased.

[0026] As Figures 2-4 shown in the embodiment, the inside of the air exhaust hole 205 is fixed with a first filter screen 5, and the air inlet end of the hot air machine 206 is fixed with a second filter screen 501. The first filter screen 5 and the second filter screen 501 can filter the air exhausted by the hot air machine 206, thereby preventing dust on the outer wall from polluting the particles and affecting the production quality.

[0027] As Figures 2-4 shown in the embodiment, the front side of the cooling bin 2 is attached with a waste box 6. The opening of the waste box 6 is communicated with the extension hole 3 on the front side of the cooling bin 2. The bottom surface of the cooling bin 2 is attached with a material collecting box 601. The waste box 6 can collect unqualified particles that are filtered out. The material collecting box 601 can collect qualified particles that are dried by the wind.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: in use, by starting the air heater 206 to input airflow to the air inlet pipe 207 and the inside of the cooling bin 2, in this process, due to the waste gas treatment pipe 208 one end and the outer wall of the air inlet pipe 207 close to the air heater 206 communication and fixed effect, make the waste gas treatment pipe 208 inside form negative pressure, so that the air suction hopper 203 to the top surface of the cooling groove 101 suction airflow, then the extruder 1 extrudes the polyphenyl sulfide slurry into strip polyphenyl sulfide, then the strip polyphenyl sulfide enters the inside of the cooling groove 101 and carries out cooling, at this time, the strip polyphenyl sulfide and the cold water contact produce polluting waste gas, and the generated waste gas is absorbed by the air suction hopper 203, and the waste gas is filtered and purified by the activated carbon filter screen 210, and the cooled strip polyphenyl sulfide enters the pelletizer 102 and carries out pelletizing, at this time, the particles fall on the inclined screen 202, at this time, the vibration motor 302 is started to drive the connecting rod 301 to vibrate quickly, so that the vibrating inclined screen 202 is constantly lifted, the filtering effect of the inclined screen 202 on the particles is increased, at this time, the unqualified particles that do not pass through the inclined screen 202 fall into the waste box 6 inside along the inclined surface of the inclined screen 202 through the extension hole 3, and the particles that pass through the inclined screen 202 fall between the air inlet hopper 204 and the air outlet hole 205, at this time, the particles are quickly air dried by the airflow, and then the qualified particles fall into the material receiving box 601, so that the granulation of polyphenyl sulfide is completed.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A granulating apparatus for polyphenylene sulfide, comprising an extruder (1), characterized by, The front side of the extruder (1) is provided with a cooling tank (101), the front side of the cooling tank (101) is provided with a granulator (102), the front side of the granulator (102) is provided with a cooling assembly, the cooling assembly comprises a cooling bin (2) fixed on the front side of the granulator (102), the top surface of the cooling bin (2) is communicated and fixed with a feeding bin (201), the inside of the feeding bin (201) is provided with an inclined screen (202), the upper side of the cooling tank (101) is provided with a suction hopper (203), the right side of the cooling bin (2) is communicated and fixed with an air inlet hopper (204), and the left side of the cooling bin (2) is provided with an exhaust hole (205).

2. The apparatus for producing a polyphenylene sulfide according to claim 1, wherein The right end of the air inlet hopper (204) is communicated and fixed with an air inlet pipe (207), the rear end of the air inlet pipe (207) is fixed with a hot air machine (206), the top end of the suction hopper (203) is communicated and fixed with a waste gas treatment pipe (208), the waste gas treatment pipe (208) is composed of two sections of pipes, a purification pipe (209) is detachably installed between the two sections of pipes, a plurality of activated carbon filter screens (210) are fixed in the purification pipe (209), and the end of the waste gas treatment pipe (208) away from the suction hopper (203) is communicated and fixed with the outer wall of the air inlet pipe (207) close to the hot air machine (206). The angle between the waste gas treatment pipe (208) and the axis of the air inlet pipe (207) is forty-five degrees.

3. The apparatus for producing a polyphenylene sulfide according to claim 2, wherein The front and rear sides of the cooling bin (2) are provided with extension holes (3), the bottom surface of the inclined screen (202) is fixed with a connecting rod (301), one end of the connecting rod (301) penetrates, the extension hole (3) on the rear side of the cooling bin (2) extends to the rear side of the cooling bin (2), and the rear side of the connecting rod (301) is fixed with a vibration motor (302).

4. The apparatus for producing a polyphenylene sulfide according to claim 3, wherein The bottom surface of the inclined screen (202) is fixed and close to the front and rear sides and is fixed with a plurality of limiting rods (4), the limiting rods (4) and the inner bottom surface of the extension hole (3) are slidably inserted, the outer wall of the limiting rod (4) movably sleeves a tension spring (401), and the top end and the bottom end of the tension spring (401) are fixed with the bottom surface of the inclined screen (202) and the inner bottom surface of the extension hole (3) respectively.

5. The apparatus for producing a polyphenylene sulfide according to claim 4, wherein The inside of the exhaust hole (205) is fixed with a first filter screen (5), and the air inlet end of the hot air machine (206) is fixed with a second filter screen (501).

6. The apparatus for producing a polyphenylene sulfide according to claim 5, wherein The front side of the cooling bin (2) is attached with a waste box (6), the opening of the waste box (6) is communicated with the extension hole (3) on the front side of the cooling bin (2), and the bottom surface of the cooling bin (2) is attached with a material collecting box (601).

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