A mixing device for PPA composite material processing

Abstract

This utility model provides a mixing device for processing PPA composite materials, belonging to the field of mixing equipment. The mixing device includes: a mixing cylinder, a support frame on the side of the bottom of the mixing cylinder, a discharge hopper in the middle of the bottom of the mixing cylinder, and a feed pipe and a feeding pipe on both sides of the top of the mixing cylinder. The device utilizes a ring-shaped heating chamber with several heating elements inside to generate heat, which is then transferred to the mixing cylinder to heat the composite material raw materials. A heat insulation cover outside the ring-shaped heating chamber prevents burns to personnel. A motor drives several stirring rods on a stirring shaft to rotate, and the heat generated by the internal heating elements further heats the composite material raw materials, improving the heating effect during the mixing process. Simultaneously, a temperature sensor inside the mixing cylinder monitors the temperature in real time, which is displayed and adjusted via an external control panel.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment, specifically a mixing equipment for processing PPA composite materials. Background Technology

[0002] The processing and mixing of PPA composite materials is mainly based on the mechanism of action of PPA (polymer processing aid) in plastic processing. PPA is a plastic processing aid based on fluoropolymers, widely used in the extrusion processes of various resins. Its core function is to form a dynamic lubricating film on the melt surface, thereby reducing the extrusion pressure, torque, and apparent viscosity of the melt, significantly improving the surface properties and overall quality of plastic products. A search of application CN202223381977.1 discloses a mixing machine for composite material processing, which includes a mixing barrel, a frame, a stirring assembly, and a tilting assembly. The mixing barrel is rotatably connected inside the frame. The tilting assembly includes a vertically movable lifting plate and two connecting plates. The bottoms of the two connecting plates are rotatably connected to the two sides of the lifting plate. On the side, the tops of two connecting plates are rotatably connected to both sides of the mixing tank. The stirring assembly includes a drive gear and several stirring shafts. Multiple stirring rods are fixedly installed on the outside of the stirring shafts. The bottom end of the stirring shafts is rotatably connected to the bottom inner wall of the mixing tank. Through the cooperation of the stirring assembly and the tilting assembly, multiple sets of stirring shafts and stirring rods can be driven to rotate while the mixing tank is tilted back and forth, improving the mixing efficiency and uniformity of the composite material. However, the above description still has the following defects in actual use: the mixing equipment cannot adjust the temperature of the mixing process during use. At the same time, different preparations need to be added during the mixing process, which will produce some irritating odors that affect the health of external operators. Therefore, it is necessary to design a more practical mixing equipment for PPA composite material processing. Utility Model Content

[0003] The purpose of this invention is to provide a mixing device for processing PPA composite materials, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for processing PPA composite materials, comprising: a mixing cylinder, a support frame provided on the side of the bottom of the mixing cylinder, a discharge hopper provided in the middle of the bottom of the mixing cylinder, and a feed pipe and a feeding pipe respectively provided on both sides of the top of the mixing cylinder;

[0005] A temperature control assembly includes two mounting rings installed on the surface of a mixing drum. The opposite sides of the two mounting rings are fixedly connected to both ends of an annular heating chamber. The annular heating chamber has a plurality of heating tubes arranged in a ring inside. The surface of the annular heating chamber is provided with a heat insulation cover, and the surface of the heat insulation cover is provided with a control panel.

[0006] The exhaust assembly includes a connecting bend that is inserted into one side of the top of the mixing cylinder. One end of the connecting bend is fixedly connected to one side of the top of the annular pipe frame. Two connectors at the top of the annular pipe frame are fixedly connected to the top of the inner wall of the mixing cylinder. Several gas collection hoods are arranged in a ring at the bottom of the annular pipe frame. The other end of the connecting bend is fixedly connected to an exhaust pump. The exhaust pump's outlet pipe is fixedly connected to an external exhaust channel. The bottom of the exhaust pump is mounted on the surface of the mixing cylinder through a support base.

[0007] As a preferred embodiment of this utility model: a motor is provided in the middle of the top of the mixing cylinder, the output shaft of the motor is fixedly connected to a stirring shaft, the surface of the stirring shaft is provided with a plurality of stirring rods, and the interior of the plurality of stirring rods is provided with heating wires.

[0008] As a preferred embodiment of this utility model: an air filter screen is provided above the inner wall side of the mixing cylinder, and a through hole is provided in the middle of the top of the air filter screen. The inner wall of the through hole is rotatably connected to the surface of the stirring shaft through a bearing sleeve. The surface of the stirring shaft is fixedly connected to the two ends of the two scrapers through two connecting brackets.

[0009] As a preferred embodiment of this utility model: the inner wall of the support base has two connecting holes, and the inner walls of the two connecting holes are threadedly connected to two slots on the surface of the mixing cylinder by connecting pins.

[0010] As a preferred embodiment of this utility model: the bottom ends of the feed pipe and the feeding pipe are inserted and connected to the insertion holes on both sides of the top of the air filter.

[0011] As a preferred embodiment of this utility model: a temperature sensor is provided on the inner wall of the mixing cylinder above the air filter screen, and the temperature sensor can be electrically connected to an external control panel.

[0012] As a preferred embodiment of this utility model, the surfaces of the feed pipe, the feeding pipe, and the discharge hopper are all equipped with control valves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The heating is achieved by several electric heating tubes inside the annular heating chamber, and the heat generated is transferred to the mixing drum to heat the composite material material inside. The heat insulation cover outside the annular heating chamber can prevent burns to outside personnel. The motor drives several stirring rods on the stirring shaft to rotate. The heat generated by the stirring rods and the internal electric heating wire further heats the composite material material, improving the heating effect during the mixing process. At the same time, the temperature sensor inside the mixing drum monitors the temperature in real time and displays and adjusts the temperature with the external control panel, improving the mixing efficiency of the mixing equipment.

[0015] (2) The exhaust gas generated during the mixing process inside the mixing drum is collected by the exhaust pump in conjunction with several gas collection hoods at the bottom of the connecting bend and the annular pipe frame. Then the exhaust gas is sent to the external exhaust pipe through the annular pipe frame, the connecting bend and the exhaust pump in sequence, thereby avoiding the exhaust gas from the mixing process from causing harm to the operator's body. In addition, the filter screen inside the mixing drum can prevent the composite material raw materials from being sucked in during the exhaust process, ensuring that the exhaust structure will not be blocked. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0019] Figure 4 This is a schematic diagram of the temperature control component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the exhaust assembly structure of this utility model.

[0021] In the diagram: 1. Mixing cylinder; 11. Support frame; 12. Discharge hopper; 13. Feed pipe; 14. Feeding pipe; 15. Motor; 16. Stirring shaft; 17. Stirring rod; 18. Air filter screen; 19. Through hole; 110. Bearing sleeve; 111. Connecting frame; 112. Scraper; 113. Insertion hole; 114. Temperature sensor; 115. Control valve; 2. Temperature control component; 21. Mounting ring; 22. Annular heating chamber; 23. Electric heating element; 24. Heat insulation cover; 25. Control panel; 3. Exhaust assembly; 31. Connecting bend; 32. Annular pipe rack; 33. Connector; 34. Air collection hood; 35. Exhaust pump; 36. Support base; 37. Connecting pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1-5 A mixing device for processing PPA composite materials includes: a mixing cylinder 1, a support frame 11 provided on the side of the bottom of the mixing cylinder 1, a discharge hopper 12 provided in the middle of the bottom of the mixing cylinder 1, and a feed pipe 13 and a feeding pipe 14 respectively provided on both sides of the top of the mixing cylinder 1.

[0024] Please see Figure 4 Temperature control component 2 includes two mounting rings 21 installed on the surface of mixing cylinder 1. The opposite side of the two mounting rings 21 is fixedly connected to both ends of annular heating chamber 22. Several electric heating tubes 23 are arranged in annularly inside the annular heating chamber 22. A heat insulation cover 24 is provided on the surface of the annular heating chamber 22. A control panel 25 is provided on the surface of the heat insulation cover 24.

[0025] In practical use: Several electric heating tubes 23 inside the annular heating chamber 22 heat the material, and the heat generated is transferred to the mixing drum 1 to heat the composite material material inside. The heat insulation cover 24 outside the annular heating chamber 22 can prevent burns to outside personnel. The motor 15 drives several stirring rods 17 on the stirring shaft 16 to rotate. The heat generated by the stirring rods 17 in conjunction with the internal electric heating wire further heats the composite material material, improving the heating effect of the stirring process. At the same time, the temperature sensor 114 inside the mixing drum 1 monitors the temperature in real time, and displays and adjusts the temperature in conjunction with the external control panel 25.

[0026] Please see Figure 5 The exhaust assembly 3 includes a connecting bend 31 that is inserted into one side of the top of the mixing cylinder 1. One end of the connecting bend 31 is fixedly connected to one side of the top of the annular pipe frame 32. Two connectors 33 at the top of the annular pipe frame 32 are fixedly connected to the top of the inner wall of the mixing cylinder 1. Several gas collection hoods 34 are arranged in a ring at the bottom of the annular pipe frame 32. The other end of the connecting bend 31 is fixedly connected to the exhaust pump 35. The exhaust pipe of the exhaust pump 35 is fixedly connected to the external exhaust channel. The bottom of the exhaust pump 35 is mounted and connected to the surface of the mixing cylinder 1 through a support base 36.

[0027] In practical use: the exhaust pump 35, together with the connecting bend 31 and several gas collection hoods 34 at the bottom of the annular pipe frame 32, collects the waste gas generated during the mixing process inside the mixing cylinder 1. Then, the waste gas is sequentially sent from the annular pipe frame 32, the connecting bend 31 and the exhaust pump 35 to the external exhaust pipe, thereby avoiding the waste gas during the mixing process from causing harm to the operator's body. In addition, during the exhaust process, the filter screen 18 inside the mixing cylinder 1 can prevent the composite material raw materials from being sucked in, ensuring that the exhaust structure will not be blocked.

[0028] Please see Figure 2 A motor 15 is provided in the middle of the top of the mixing cylinder 1. The output shaft of the motor 15 is fixedly connected to a stirring shaft 16. Several stirring rods 17 are provided on the surface of the stirring shaft 16, and heating wires are provided inside the stirring rods 17.

[0029] In practical use: the motor 15 drives several stirring rods 17 on the stirring shaft 16 to rotate. The heat generated by the internal heating wires of the stirring rods 17 further heats the composite material raw materials, improving the heating effect of the stirring process.

[0030] Please see Figure 3 A filter screen 18 is provided on the upper side of the inner wall of the mixing cylinder 1. A through hole 19 is provided in the middle of the top of the filter screen 18. The inner wall of the through hole 19 is rotatably connected to the surface of the stirring shaft 16 through the bearing sleeve 110. The surface of the stirring shaft 16 is fixedly connected to the two ends of the two scrapers 112 through two connecting brackets 111.

[0031] In practical use: the stirring shaft 16 rotates in conjunction with the bearing sleeve 110 on the inner wall of the through hole 19 to ensure the normal rotation of the stirring structure. The stirring shaft 16, together with the two connecting brackets 111, drives the two scrapers 112 to rotate, scraping and cleaning the residual raw materials on the inner wall of the mixing cylinder 1.

[0032] Please see Figure 5 The inner wall of the support base 36 has two connecting holes, and the inner walls of the two connecting holes are threadedly connected to two slots on the surface of the mixing cylinder 1 by connecting pins 37.

[0033] In practical use: insert the two connecting pins 37 into the two connecting holes and slots to facilitate the installation and removal of the support base 36 from the mixing cylinder 1.

[0034] Please see Figure 2 The bottom ends of the feed pipe 13 and the feeding pipe 14 are inserted and connected to the insertion holes 113 on both sides of the top of the filter screen 18.

[0035] In practical use: the bottom ends of the feed pipe 13 and the feeding pipe 14 are inserted and engaged with the two insertion holes 113 on the surface of the air filter screen 18, so as to facilitate the entry of the composite material raw materials into the mixing zone inside the mixing cylinder 1.

[0036] Please see Figure 2 A temperature sensor 114 is provided on the inner wall of the mixing cylinder 1 above the air filter screen 18. The temperature sensor 114 can be electrically connected to the external control panel 25.

[0037] In practical use: the temperature sensor 114 inside the mixing cylinder 1 monitors the temperature in real time, and displays and adjusts the temperature in conjunction with the external control panel 25.

[0038] Please see Figure 2 Control valves 115 are provided on the surfaces of the feed pipe 13, the feeding pipe 14 and the discharge hopper 12.

[0039] In practical use: several control valves 115 on the surface of the feed pipe 13, the feeding pipe 14 and the discharge hopper 12 make it easy to keep the inside of the mixing cylinder 1 in a relatively closed state during the mixing process, so as to facilitate the collection and discharge of waste gas.

[0040] During use, several electric heating tubes 23 inside the annular heating chamber 22 heat the material, and the heat generated is transferred to the mixing drum 1 to heat the composite material material inside. The heat insulation cover 24 outside the annular heating chamber 22 can prevent burns to outside personnel. The motor 15 drives several stirring rods 17 on the stirring shaft 16 to rotate. The heat generated by the stirring rods 17 and the internal electric heating wire further heats the composite material material, improving the heating effect of the mixing process. At the same time, the temperature sensor 114 inside the mixing drum 1 monitors the temperature in real time, and displays and adjusts the temperature with the help of the external control panel 25. The exhaust pump 35, together with several gas collection hoods 34 at the bottom of the connecting bend pipe 31 and the annular pipe frame 32, collects the exhaust gas generated during the mixing process inside the mixing drum 1. Then, the exhaust gas is sent to the external exhaust pipe in sequence from the annular pipe frame 32, the connecting bend pipe 31 and the exhaust pump 35, thereby preventing the exhaust gas from the mixing process from causing harm to the operator.

[0041] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A compounding apparatus for PPA composite processing, characterized in that, include: A mixing cylinder (1) is provided with a support frame (11) on the side of the bottom of the mixing cylinder (1), a discharge hopper (12) is provided in the middle of the bottom of the mixing cylinder (1), and a feed pipe (13) and a feeding pipe (14) are respectively provided on both sides of the top of the mixing cylinder (1). Temperature control component (2), the temperature control component (2) includes two mounting rings (21) installed on the surface of mixing cylinder (1), the opposite side of the two mounting rings (21) is fixedly connected to both ends of annular heating chamber (22), the annular heating chamber (22) is provided with a plurality of electric heating tubes (23) in annular shape inside, the surface of the annular heating chamber (22) is provided with heat insulation cover (24), and the surface of the heat insulation cover (24) is provided with control panel (25); The exhaust assembly (3) includes a connecting bend (31) that is inserted into one side of the top of the mixing cylinder (1). One end of the connecting bend (31) is fixedly connected to one side of the top of the annular pipe frame (32). Two connectors (33) at the top of the annular pipe frame (32) are fixedly connected to the top of the inner wall of the mixing cylinder (1). Several gas collection hoods (34) are arranged in a ring at the bottom of the annular pipe frame (32). The other end of the connecting bend (31) is fixedly connected to the exhaust pump (35). The exhaust pipe of the exhaust pump (35) is fixedly connected to the external exhaust channel. The bottom of the exhaust pump (35) is mounted on the surface of the mixing cylinder (1) through a support base (36).

2. The compounding apparatus for PPA composite material processing according to claim 1, characterized in that: A motor (15) is provided in the middle of the top of the mixing cylinder (1). The output shaft of the motor (15) is fixedly connected to a stirring shaft (16). Several stirring rods (17) are provided on the surface of the stirring shaft (16), and heating wires are provided inside the stirring rods (17).

3. The compounding apparatus for PPA composite material processing according to claim 1, characterized in that: A filter screen (18) is provided above the inner wall side of the mixing cylinder (1). A through hole (19) is provided in the middle of the top of the filter screen (18). The inner wall of the through hole (19) is rotatably connected to the surface of the stirring shaft (16) through a bearing sleeve (110). The surface of the stirring shaft (16) is fixedly connected to the two ends of two scrapers (112) through two connecting brackets (111).

4. A mixing device for processing PPA composite materials according to claim 1, characterized in that: The inner wall of the support base (36) has two connecting holes, and the inner walls of the two connecting holes are threadedly connected to two slots on the surface of the mixing cylinder (1) by connecting pins (37).

5. A mixing device for processing PPA composite materials according to claim 1, characterized in that: The bottom ends of the feed pipe (13) and the feeding pipe (14) are inserted and connected to the insertion holes (113) on both sides of the top of the filter screen (18).

6. A mixing device for processing PPA composite materials according to claim 1, characterized in that: A temperature sensor (114) is provided on the inner wall of the mixing cylinder (1) above the air filter (18), and the temperature sensor (114) can be electrically connected to the external control panel (25).

7. A mixing device for processing PPA composite materials according to claim 1, characterized in that: The surfaces of the feed pipe (13), the feeding pipe (14), and the discharge hopper (12) are all equipped with control valves (115).

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