Mixing device for flame retardant raw material processing

Abstract

The invention relates to the field of chemical engineering, in particular to a mixing device for flame retardant raw material processing. The top of the center cylinder is closed, and a feeding mechanism is arranged at the bottom of the center cylinder; the side cylinders are obliquely arranged on the two sides of the center cylinder to form a V-shaped structure, and the tops of the side cylinders are closed; the rotating rod is rotationally arranged on the supporting seat and connected with the outer wall of the side barrel, and a power mechanism for driving the rotating rod to rotate is arranged on the supporting seat; the side barrel discharging mechanism is arranged in the side barrel and is used for intensifying stirring and scraping the inner wall of the side barrel to complete auxiliary discharging; the elastic ring is located at the top of the inner side of the center cylinder and makes contact with the inner wall of the center cylinder, and a center cylinder discharging mechanism driving the elastic ring to move up and down is arranged on the center cylinder. According to the device, the feeding mechanism is arranged, so that feeding and discharging are more convenient, and the single-time mixing amount of the whole device can also be increased; and during discharging, the inner walls of the side cylinders and the center cylinder can be scraped, so that discharging is more sufficient.

Description

Technical Field

[0001] The present invention relates to the field of chemical engineering technology, and particularly relates to a mixing device for processing flame retardant raw materials. Background Art

[0002] A flame retardant is a substance used to slow down or prevent the combustion of materials, and is widely used in fields such as plastics, textiles, building materials, etc. During the processing, it is usually necessary to mix the flame retardant with other materials to ensure its performance.

[0003] Chinese Patent with Publication No. CN108479550B discloses a V-type high-efficiency mixer, which includes a fixed frame and a V-type mixing barrel. The fixed frame is U-shaped, and the V-type mixing barrel is erected at the upper end of the middle part of the fixed frame and the two are rotatably connected. A driving motor is arranged inside the fixed frame, and the driving motor drives the V-type mixing frame to rotate relative to the fixed frame through a belt mechanism, a sprocket mechanism or a gear mechanism; the V-type mixing barrel includes a first barrel and a second barrel arranged in a V shape, and the included angle formed by the axes of the first barrel and the second barrel is 60-90 degrees. An outlet is arranged at the lower end of the V-type mixing barrel; a feed inlet is arranged at the upper end of the first barrel, and the feed inlet is connected to a vacuum feeding system; a first stirring assembly is arranged inside the first barrel, a second stirring assembly is arranged inside the second barrel, and a mixing assembly is arranged at the outlet. The mixing efficiency is high and the mixing is uniform.

[0004] However, the above disclosed solution has the following deficiencies: Although a stirring structure is added on the basis of the V-type mixer, the stirring structure needs to be driven by a motor arranged on the V-type barrel. During the operation, the motor needs to rotate synchronously with the V-type mixer, and the wiring is troublesome. In addition, when the mixer mixes materials with a certain viscosity, the materials are easily adhered to the inner wall, resulting in difficult discharging and affecting the overall mixing ratio. Summary of the Invention

[0005] The purpose of the present invention is to address the problems in the background art that the motor rotating synchronously with the V-type mixer has troublesome wiring and the materials adhered to the inner wall are difficult to discharge fully, and to propose a mixing device for processing flame retardant raw materials.

[0006] The technical solution of the present invention: A mixing device for processing flame retardant raw materials, including a support base; further including: A central barrel, with a closed top, and a feeding mechanism is arranged at the bottom of the central barrel; Side barrels, inclined and arranged on both sides of the central barrel to form a V-shaped structure, with closed tops; A rotating rod, rotatably arranged on the support base and connected to the outer wall of the side barrel, and a power mechanism for driving the rotating rod to rotate is arranged on the support base; A side barrel discharging mechanism, arranged inside the side barrel, used for strengthening stirring and scraping the inner wall of the side barrel to complete auxiliary discharging; The elastic ring is located at the inner top of the central cylinder and contacts the inner wall of the central cylinder. A central cylinder discharging mechanism for driving the elastic ring to move up and down is provided on the central cylinder. And a control system is arranged on the support base. The control system is connected to the feeding mechanism, the power mechanism and the side cylinder discharging mechanism in a controlled manner.

[0007] Preferably, the feeding mechanism includes a pallet, a receiving barrel placed on the pallet, and a telescopic device arranged on the outer wall of the side cylinder for driving the pallet to move up and down.

[0008] Preferably, the side cylinder discharging mechanism includes a stirring rod coaxially and rotatably arranged on the side cylinder, a spiral stirring plate arranged on the stirring rod, and a rotating mechanism for driving the stirring rod to rotate. The edge of the spiral stirring plate contacts the inner wall of the side cylinder.

[0009] Preferably, a plurality of flow channels are arranged on the spiral stirring plate for the flame retardant raw material to pass through, and the rotation of the spiral stirring plate enhances the mixing effect.

[0010] Preferably, the rotating mechanism includes a passive rotating component and an active rotating component. The passive rotating component includes a fixed seat arranged at the bottom of the side cylinder, a follower rod horizontally and rotatably arranged on the fixed seat, a universal joint connecting the stirring rod and the follower rod, a gear a arranged on the follower rod, and a gear ring arranged on the support base. The teeth on the inner peripheral wall of the gear ring mesh with the gear a. Two sets of passive components are arranged to drive the rotation of two stirring rods respectively.

[0011] Preferably, the active rotating component includes a motor arranged in the support base, and a gear b arranged on the output shaft of the motor. The gear b meshes with a circle of teeth on the outer peripheral wall of the gear ring. The gear ring is rotatably connected to the support base. Two sets of active rotating components are arranged to drive the rotation of two gear rings.

[0012] Preferably, the central cylinder discharging mechanism includes a vertical rod vertically passing through the top of the central cylinder, a cross rod connecting the bottom of the vertical rod and the elastic ring, and a limiting component for limiting the position of the vertical rod.

[0013] Preferably, the limiting component includes a fixing plate arranged on the outer wall of the top of the central cylinder, a limiting rod slidably arranged on the fixing plate, a limiting ring arranged on the limiting rod, and a spring sleeved on the limiting rod. The two ends of the spring respectively abut against the limiting ring and the fixing plate. The limiting ring abuts against the vertical rod, and the end of the limiting rod is inserted into a limiting hole arranged on the vertical rod in a matching manner.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: By arranging the feeding mechanism, the feeding method is changed from top feeding to bottom feeding, and the feeding and discharging are quickly completed by the expansion and contraction of the telescopic device, which is convenient to use and can also increase the single mixing amount of the whole device; By setting a spiral stirring plate and an elastic ring that moves up and down, when discharging materials, it can scrape the inner walls of the side cylinder and the central cylinder, making the discharging more sufficient, ensuring the mixing ratio of raw materials, and the spiral stirring plate can also further improve the material mixing ability of the device; During the revolution of the stirring rod, through the cooperation of gear a and the gear ring, the powerless self-rotation of the stirring rod is realized, and there is no need to set a motor on the side cylinder during revolution, which not only simplifies the power structure but also avoids the complex wiring structure and is convenient for subsequent maintenance. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2 is Figure 1 a schematic diagram of the overall structure from another perspective; Figure 3 is Figure 1 a schematic diagram after a part of the structure is cut open; Figure 4 is Figure 1 a schematic diagram after removing the support base and cutting open a part of the structure; Figure 5 is Figure 1 an enlarged schematic diagram of part A in; Figure 6 is Figure 2 an enlarged schematic diagram of part B in.

[0016] Reference Signs: 1, support base; 2, maintenance door; 3, control system; 4, rotating rod; 5, central cylinder; 6, side cylinder; 7, receiving bucket; 8, stirring rod; 9, spiral stirring plate; 10, flow channel; 11, universal joint; 12, fixed seat; 13, follower rod; 14, gear a; 15, gear ring; 16, motor; 17, rotating shaft; 18, gear b; 19, transmission shaft; 20, pulley; 21, belt; 22, elastic ring; 23, vertical rod; 24, handle; 25, limiting rod; 26, limiting ring; 27, fixing plate; 28, spring; 29, guiding cylinder; 30, guiding rod; 31, supporting plate; 32, telescopic device; 33, wire; 34, conductive slip ring; 35, wiring fixing ring. Detailed Embodiments

[0017] Embodiment 1, as Figures 1-4 shown, a mixing device for processing flame retardant raw materials proposed by the present invention includes a support base 1. The support base 1 has a U-shaped structure and is hollow inside. Maintenance doors 2 are provided on both sides of the support base 1 to facilitate the maintenance of the internal structure; it further includes: a central cylinder 5 with a closed top, and a feeding mechanism is provided at the bottom of the central cylinder 5; side cylinders 6, which are inclined on both sides of the central cylinder 5 to form a V-shaped structure, and the tops of the side cylinders 6 are closed; The rotating rod 4 is rotatably arranged on the support base 1 and connected to the outer wall of the side cylinder 6. A power mechanism for driving the rotation of the rotating rod 4 is arranged on the support base 1. The power mechanism is composed of a common motor and a speed reducer. After deceleration, it is connected to the rotating rod 4 to drive its rotation; The side cylinder discharging mechanism is arranged in the side cylinder 6 and is used for strengthening stirring and scraping the inner wall of the side cylinder 6 to complete auxiliary discharging; The elastic ring 22 is located at the inner top of the central cylinder 5 and contacts the inner wall of the central cylinder 5. A central cylinder discharging mechanism for driving the up and down movement of the elastic ring 22 is arranged on the central cylinder 5; And the control system 3 is arranged on the support base 1. The control system 3 is controllably connected to the feeding mechanism, the power mechanism and the side cylinder discharging mechanism.

[0018] Embodiment 2, as Figures 1-2 shown, a mixing device for processing flame retardant raw materials proposed by the present invention. Compared with Embodiment 1, the structure of the feeding mechanism is introduced in detail in this embodiment.

[0019] The feeding mechanism includes a support plate 31, a receiving barrel 7 placed on the support plate 31, and a telescopic device 32 arranged on the outer wall of the side cylinder 6 for driving the up and down movement of the support plate 31. The telescopic device 32 is an electric telescopic rod. The receiving barrel 7 is directly sleeved on the bottom of the central cylinder 5. In order to maintain sealing, an elastic sealing ring is arranged on the inner wall of the receiving barrel 7, and the sealing ring is in extrusion contact with the outer wall of the central cylinder 5. In order to accurately place the receiving barrel 7, a placement hole for positioning is arranged on the support plate 31, and the receiving barrel 7 can be placed in the placement hole. In order to further ensure the accuracy of the lifting of the support plate 31 and the receiving barrel 7, a plurality of vertical guide rods 30 are arranged on the support plate 31, and a guide cylinder 29 is vertically arranged on the side cylinder 6, and a part of the guide rod 30 is inserted into the guide cylinder 29. In order to facilitate the rotary wiring of the telescopic device 32, a conductive slip ring 34 is arranged on the support base 1. The rotating rod 4 passes through the central hole of the conductive slip ring 34. The fixed ring of the conductive slip ring 34 is connected to the external circuit, and the rotating ring of the conductive slip ring 34 is connected to the telescopic device 32 through a wire 33. When the telescopic device 32 rotates with the side cylinder 6, the wire 33 also rotates. In addition, in order to make the wire 33 neat and beautiful, the wire 33 is fixed on the rotating rod 4 through a plurality of wire routing fixing rings 35. The wire routing fixing rings 35 can be ropes or cable ties.

[0020] Embodiment 3, as Figure 4 shown, a mixing device for processing flame retardant raw materials proposed by the present invention. Compared with Embodiment 1, the structure of the side cylinder discharging mechanism is introduced in detail in this embodiment.

[0021] The side cylinder discharging mechanism includes a stirring rod 8 rotatably arranged coaxially on the side cylinder 6, a spiral stirring plate 9 arranged on the stirring rod 8, and a rotating mechanism for driving the rotation of the stirring rod 8. The edge of the spiral stirring plate 9 contacts the inner wall of the side cylinder 6. In an optional embodiment, an elastic strip is arranged at the edge of the spiral stirring plate 9, and the elastic strip contacts the side cylinder 6. The inner wall of the side cylinder 6 is scraped by the rotation of the spiral stirring plate 9 to assist in discharging and prevent materials from adhering to the inner wall of the side cylinder 6. A plurality of flow grooves 10 are arranged on the spiral stirring plate 9, and the flow grooves 10 are used for the flame retardant raw materials to pass through, and the mixing effect is enhanced by the rotation of the spiral stirring plate 9.

[0022] Embodiment 4, as Figure 1 , Figure 4 and Figure 5 shown, a mixing device for processing flame retardant raw materials proposed by the present invention, compared with Embodiment 3, the structure of the rotating mechanism is introduced in detail in this embodiment.

[0023] The rotating mechanism includes a passive rotating component and an active rotating component. The passive rotating component includes a fixed seat 12 arranged at the bottom of the side cylinder 6, a follower rod 13 horizontally and rotatably arranged on the fixed seat 12, a universal joint 11 connecting the stirring rod 8 and the follower rod 13, a gear a 14 arranged on the follower rod 13, and a toothed ring 15 arranged on the support seat 1. The teeth on the inner peripheral wall of the toothed ring 15 mesh with the gear a 14; two groups of passive components are arranged to drive the rotation of the two stirring rods 8 respectively; the toothed ring 15 is coaxially arranged with the rotating rod 4. When the rotating rod 4 rotates, the follower rod 13 rotates self-rotation through the gear a 14, and then the power is transmitted through the universal joint 11 to make the stirring rod 8 rotate self-rotation, so that during the rotation of the side cylinder 6, the spiral stirring plate 9 rotates self-rotation, improving the mixing effect, and there is no need to additionally set a motor to drive the rotation of the stirring rod 8, simplifying the power structure and further simplifying the wiring.

[0024] The active rotating component includes a motor 16 arranged in the support base 1, and a gear b18 arranged on the output shaft of the motor 16, the gear b18 is meshed with a circle of teeth on the outer peripheral wall of the ring gear 15, and the ring gear 15 is rotatably connected to the support base 1. In an optional embodiment, a circular ring is rotatably arranged on the support base 1, and the ring gear 15 is coaxially arranged on the circular ring to realize the rotation of the ring gear 15. When the motor 16 does not rotate, the ring gear 15 is fixed, and the gear a14 and the teeth on the inner side of the ring gear 15 realize passive rotation. When the motor 16 is working, the ring gear 15 is driven to rotate by the gear b18 to realize the active rotation of the stirring rod 8; the active rotating component is provided with two groups, which are used to drive the two ring gears 15 to rotate. In an optional embodiment, the motor Only one machine 16 is set on one side, and the other side is driven by a mechanical structure. The specific mechanical structure includes a longer transmission shaft 19 horizontally and rotatably set in the support base 1, and a shorter stub shaft horizontally and rotatably set in the support base 1. The stub shaft on this side is used to install the gear b18. Pulleys 20 are set on the stub shaft, the output shaft of the motor 16 and the transmission shaft 19. There are two pulleys 20 on the transmission shaft 19, and the upper and lower pulleys 20 are connected by a belt 21, so as to complete the power transmission of the motor 16 to the gear b18 on the other side without the need to set up another motor 16, simplifying the power structure and wiring, and the motor 16 is set on one side of the control system 3, which is more convenient to connect with the control system 3.

[0025] Embodiment 5, as Figure 3 , Figure 4 and Figure 6 As shown, the present invention proposes a mixing device for processing flame retardant raw materials. Compared with the first embodiment, this embodiment introduces the structure of the central tube discharge mechanism in detail.

[0026] The central tube discharging mechanism includes a vertical rod 23 vertically passing through the top of the central tube 5, a horizontal rod connecting the bottom of the vertical rod 23 and the elastic ring 22, and a limiting assembly for limiting the position of the vertical rod 23. In order to make it more convenient to use, a disc-shaped handle 24 is provided at the bottom of the vertical rod 23. During the mixing and stirring process of the side tubes 6, the vertical rod 23 is fixed by the limiting assembly, and the elastic ring 22 is located at the top position in the central tube 5. When discharging, the limiting of the vertical rod 23 is released and it is pressed down. The flame retardant raw material attached to the inner wall of the central tube 5 is scraped off through the elastic ring 22. In addition, rotating the vertical rod 23 can also scrape the inner wall of the top of the central tube 5 through the horizontal rod, so that the discharging is more comprehensive.

[0027] Furthermore, the limiting assembly includes a fixed plate 27 arranged on the top outer wall of the central tube 5, a limiting rod 25 slidably arranged on the fixed plate 27, a limiting ring 26 arranged on the limiting rod 25, and a spring 28 sleeved on the limiting rod 25, the two ends of the spring 28 respectively abut against the limiting ring 26 and the fixed plate 27, the limiting ring 26 abuts against the vertical rod 23, and the end of the limiting rod 25 is inserted into the limiting hole set on the vertical rod 23.

[0028] In summary, when the present invention is in use, the flame retardant raw materials to be mixed are directly poured into the receiving barrel 7, and then the receiving barrel 7 is placed in the placement hole on the pallet 31. The telescopic device 32 contracts to drive the receiving barrel 7 to rise and sleeved on the central cylinder 5, and is sealed by the annular sealing ring on the inner wall of the receiving barrel 7. Then, the power mechanism is started to drive the side cylinder 6 and the central cylinder 5 to rotate around the rotating rod 4. The flame retardant raw materials are continuously forced to move and mix in the side cylinder 6, the central cylinder 5 and the receiving barrel 7. At the same time, during the rotation of the side cylinder 6, through the cooperation of the gear a 14 and the gear ring 15, the stirring rod 8 continuously rotates self, and the rotation of the spiral stirring plate 9 further improves the mixing effect of the flame retardant raw materials. In addition, according to different raw materials, the motor 16 can also be started to increase the rotation speed of the spiral stirring plate 9 and further improve the mixing effect. After the mixing is completed, the power mechanism stops working to stop the central cylinder 5 in the vertical state, and the receiving barrel 7 is located below. The motor 16 is started, and through the rotation of the spiral stirring plate 9, the edge thereof pushes the raw materials attached to the inner wall of the side cylinder 6 down to fall into the receiving barrel 7. Then the motor 16 stops working, the limiting rod 25 is pulled out, and the vertical rod 23 is pressed down. The raw materials attached to the inner wall of the central cylinder 5 are pushed down through the elastic ring 22 and also fall into the receiving barrel 7. Then, the telescopic device 32 extends to push the pallet 31 and the receiving barrel 7 to move downward, and finally the receiving barrel 7 can be taken away.

[0029] The embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge of those skilled in the art to which the present invention pertains.

Claims

1. A mixing device for processing flame retardant raw materials, comprising a support seat (1); characterized in that: Also includes: The center tube (5) is closed at the top and a feeding mechanism is arranged at the bottom of the center tube (5); The side tubes (6) are obliquely arranged on both sides of the central tube (5) to form a V-shaped structure, and the tops of the side tubes (6) are closed; A rotating rod (4) is rotatably mounted on the support seat (1) and connected to the outer wall of the side tube (6); a power mechanism for driving the rotating rod (4) to rotate is disposed on the support seat (1); A side tube discharging mechanism is arranged in the side tube (6) and is used to enhance stirring and scrape the inner wall of the side tube (6) to complete auxiliary discharging; The elastic ring (22) is located at the top of the inner side of the central tube (5) and contacts the inner wall of the central tube (5). The central tube (5) is provided with a central tube discharging mechanism for driving the elastic ring (22) to move up and down. And a control system (3) is arranged on the support seat (1), and the control system (3) is control-connected with the feeding mechanism, the power mechanism and the side tube discharging mechanism.

2. The mixing device for processing flame retardant raw materials according to claim 1, characterized in that: The loading mechanism comprises a support plate (31), a material receiving bucket (7) placed on the support plate (31), and a telescopic device (32) arranged on the outer wall of the side tube (6) to drive the support plate (31) to move up and down.

3. The mixing device for processing flame retardant raw materials according to claim 1, characterized in that: The side tube discharging mechanism comprises a stirring rod (8) coaxially and rotatably arranged on the side tube (6), a spiral stirring plate (9) arranged on the stirring rod (8), and a rotating mechanism driving the stirring rod (8) to rotate, wherein the edge of the spiral stirring plate (9) contacts the inner wall of the side tube (6).

4. The mixing device for processing flame retardant raw materials according to claim 3, characterized in that: A plurality of flow slots (10) are arranged on the spiral stirring plate (9), and the flow slots (10) are used for allowing the flame retardant raw material to pass through, and then the rotation of the spiral stirring plate (9) enhances the mixing effect.

5. The mixing device for processing flame retardant raw materials according to claim 3, characterized in that: The rotating mechanism comprises a passive rotating component and an active rotating component, wherein the passive rotating component comprises a fixed seat (12) arranged at the bottom of the side tube (6), a follower rod (13) arranged horizontally and rotatably on the fixed seat (12), a universal joint (11) connecting the stirring rod (8) and the follower rod (13), a gear a (14) arranged on the follower rod (13), and a gear ring (15) arranged on the support seat (1), wherein teeth on the inner peripheral wall of the gear ring (15) mesh with the gear a (14); two groups of passive components are arranged, each driving the two stirring rods (8) to rotate.

6. The mixing device for processing flame retardant raw materials according to claim 5, characterized in that: The active rotating assembly comprises a motor (16) arranged in the support seat (1), and a gear b (18) arranged on the output shaft of the motor (16), the gear b (18) being meshed with a circle of teeth on the outer peripheral wall of the ring gear (15), and the ring gear (15) being rotationally connected to the support seat (1); two groups of active rotating assemblies are provided to drive the two ring gears (15) to rotate.

7. The mixing device for processing flame retardant raw materials according to claim 1, characterized in that: The central tube discharging mechanism comprises a vertical rod (23) vertically passing through the top of the central tube (5), a horizontal rod connecting the bottom of the vertical rod (23) and the elastic ring (22), and a limiting assembly for limiting the position of the vertical rod (23).

8. The mixing device for processing flame retardant raw materials according to claim 7, characterized in that: The limiting assembly comprises a fixing plate (27) arranged on the top outer wall of the central tube (5), a limiting rod (25) slidably arranged on the fixing plate (27), a limiting ring (26) arranged on the limiting rod (25), and a spring (28) sleeved on the limiting rod (25), the two ends of the spring (28) respectively abut against the limiting ring (26) and the fixing plate (27), the limiting ring (26) abuts against the vertical rod (23), and the end of the limiting rod (25) cooperates to be inserted into a limiting hole provided on the vertical rod (23).

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