CN111672422B

CN111672422B - Feeding mechanism of polymerization reaction device

Info

Publication number: CN111672422B
Application number: CN202010536271.4A
Authority: CN
Inventors: 周风爱
Original assignee: Dongying East Machinery Manufacture Co ltd
Current assignee: DONGYING EAST MACHINERY MANUFACTURE CO.,LTD.
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2022-04-05
Anticipated expiration: 2040-06-12
Also published as: CN111672422A

Abstract

The invention discloses a feeding mechanism of a polymerization reaction device, which comprises: the modifier feeding pipe penetrates through the air inlet pipe, and a plurality of air inlets are formed in the bottom end of the air inlet pipe; the axial-flow type impeller is fixedly inserted into a communicating pipe in a penetrating way, and the communicating pipe and the air inlet pipe are arranged concentrically; the spray head is rotatably connected to the outer side wall of the air inlet pipe and fixedly connected with the communicating pipe through the connecting rod. The invention controls the rotating speed of the axial-flow impeller, namely the rotating speed of the spray head by controlling the air inlet amount of the air blower, and the section of the outlet of the discharge hole is gradually increased when the rotating speed of the spray head is faster, so that the spraying range of the modifier is enlarged, the dispersion effect is greatly improved, and the time required by stirring of the kettle stirrer is reduced.

Description

Feeding mechanism of polymerization reaction device

Technical Field

The invention relates to the technical field of modified polyester, in particular to a feeding mechanism of a polymerization reaction device.

Background

The chemical modification of polyester is carried out in the synthesis process, and the third and fourth monomers are added in addition to the basic monomer to change the macromolecular structure so as to achieve the purpose of improving certain physical and chemical properties. The blending method, chemical modification and physical modification, is not dependent on each other in practice, and has many common points in mechanism.

The ethylene glycol mixed solution of the modifier is required to be added in the middle section of the polyester reaction, but the modifier is usually added by virtue of a funnel because a feed inlet of the modifier is small, but the addition drop point of the modifier is not changed, the modifier is not fully contacted with reactants, the modifier is usually fully stirred and dispersed by virtue of the self-stirring function of a kettle body, the time required by stirring delays the polyester modification reaction time, and the production efficiency is low.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, the feeding mechanism of a polymerization reaction device is provided for overcoming the defects that the feeding mechanism of the polymerization reaction device is low in production efficiency because a feeding hole of a modifier is small, the modifier is often added by virtue of a funnel, but the dropping point of the modifier is unchanged, the modifier is not fully contacted with a reactant, the modifier is often fully stirred and dispersed by virtue of the self stirring function of a kettle body, and the time required by stirring delays the polyester modification reaction time.

In order to achieve the purpose, the invention adopts the following technical scheme:

a feed mechanism for a polymerization reaction apparatus, the feed mechanism comprising: the modifier feeding pipe penetrates through the air inlet pipe, and a plurality of air inlets are formed in the bottom end of the air inlet pipe;

the axial-flow type impeller is fixedly inserted into a communicating pipe in a penetrating way, and the communicating pipe and the air inlet pipe are arranged concentrically;

the spray head is rotatably connected to the outer side wall of the air inlet pipe and fixedly connected with the communicating pipe through the connecting rod, a plurality of discharge holes are formed in the spray head, a flow guide mechanism is arranged in each discharge hole and comprises a flow guide rod, and the flow guide rods are lapped on the inner walls of the discharge holes;

the piston mechanism comprises a piston plate, the piston plate is connected to the inner wall of the spray head in a sliding mode, supporting rods are symmetrically and fixedly connected to the piston plate and rotatably connected with the drainage rod, a conical cavity is formed in the bottom side of the piston plate, and fluid is injected into the conical cavity.

Preferably, the piston plate is provided with a center hole, and the inner wall of the center hole is fixedly connected with a rubber sheet.

Preferably, the bottom side of the piston plate is symmetrically and fixedly connected with connecting ropes, and one end of each connecting rope, which is far away from the piston plate, is fixedly connected to the inner wall of the conical cavity.

Preferably, the air inlets are distributed in an annular uniform array, and the air inlets are arranged opposite to the axial-flow impeller.

Compared with the prior art, the invention has the beneficial effects that:

1. add modifier solution through the modifier inlet pipe, start the air-blower and let in the air current in the air-supply line simultaneously, the air current blows to axial-flow impeller through the inlet port on to make axial-flow impeller rotate, drive the shower nozzle rotation under the linkage effect of connecting rod, modifier solution spills from the discharge opening under the effect of centrifugal force, thereby evenly is the dispersion to cauldron internal portion with the modifier.

2. Through the intake of control air-blower, thereby control axial-flow impeller's rotational speed, control the rotational speed of shower nozzle promptly, when the rotational speed of shower nozzle is faster, the centrifugal action that the fluid in the toper intracavity received is big more, thereby make the not high vortex of fluid, drive piston plate upward movement, make branch drive the drainage rod and rotate, make the export cross-section of discharge opening crescent, thereby increase the spraying range of modifier, the dispersion effect has been improved greatly, make the more abundant and reactant contact of modifier, reduce the required time of cauldron body agitator stirring, the productivity ratio of polyester modification has been improved.

Drawings

FIG. 1 is a schematic front view of a feeding mechanism of a polymerization apparatus according to the present invention, wherein a nozzle of the feeding mechanism rotates at a low speed;

FIG. 2 is a schematic front view of a feeding mechanism of a polymerization apparatus according to the present invention, wherein a nozzle of the feeding mechanism rotates at a high speed;

FIG. 3 is a schematic cross-sectional view of the bottom end of an air inlet pipe in a feeding mechanism of a polymerization apparatus according to the present invention;

FIG. 4 is a schematic view of the spraying range of the sprayer when the sprayer rotates at a low speed;

FIG. 5 is a schematic view of the spraying range of the sprayer when the sprayer rotates at a high speed.

In the figure: 1-an air inlet pipe, 2-a modifier feeding pipe, 3-a spray head, 4-a communicating pipe, 5-an axial-flow impeller, 6-a support rod, 7-a drainage rod, 8-a support rod, 9-a piston plate, 10-a rubber sheet, 11-fluid, 12-a connecting rope and 13-an air inlet hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 5, a feeding mechanism of a polymerization reaction apparatus, the feeding mechanism comprising: the air inlet pipe 1 is fixed at the output port of the blower, the axial flow impeller 5, the spray head 3 and the piston mechanism.

Particularly, the rotation of 1 bottom of air-supply line is connected with communicating pipe 4, it has modifier inlet pipe 2 to rotate the intercommunication on communicating pipe 4, modifier inlet pipe 2 runs through air-supply line 1 setting, a plurality of inlet ports 13 have been seted up to 1 bottom of air-supply line, a plurality of inlet ports 13 are the even array distribution of annular, a plurality of inlet ports 13 are just setting up axial-flow impeller 5, the air-blower lets in the air-blower toward air-supply line 1 in, the air current blows to axial-flow impeller 5 through inlet port 13 on, thereby make axial-flow impeller 5 rotate, for the mechanism provides drive power, axial-flow impeller 5 is fixed to be alternates on communicating pipe 4, communicating pipe 4 sets up with air-supply line 1 is concentric.

Shower nozzle 3 rotates to be connected on the lateral wall of air-supply line 1, and shower nozzle 3 has seted up a plurality of discharge openings through connecting rod 6 and communicating pipe 4 fixed connection on the shower nozzle 3, all is equipped with water conservancy diversion mechanism in every discharge opening, and this water conservancy diversion mechanism includes drainage rod 7, and drainage rod 7 is taken on the discharge opening inner wall, and the different flow cross section size that can change the discharge opening of drainage rod 7 inclination.

Piston mechanism includes piston plate 9, the centre bore has been seted up on piston plate 9, centre bore inner wall fixedly connected with sheet rubber 10, when piston plate 9 moves up, as pressure compensation, can make sheet rubber 10 indent to the centre bore, piston plate 9 bottom side symmetry fixedly connected with connects rope 12, connect rope 12 and keep away from the one end fixed connection of piston plate 9 on the inner wall in toper chamber, piston plate 9 sliding connection is on 3 inner walls of shower nozzle, symmetry fixedly connected with branch 8 on the piston plate 9, branch 8 rotates with drainage rod 7 to be connected, piston plate 9 bottom side is equipped with the toper chamber, fluid 11 is injected into in the toper chamber.

More specifically, the working principle of the invention is as follows: adding a modifier solution through a modifier inlet pipe 2, simultaneously starting an air blower to introduce air flow into an air inlet pipe 1, blowing the air flow onto an axial flow impeller 5 through an air inlet hole 13, thereby enabling the axial flow impeller 5 to rotate, driving a spray head 3 to rotate under the connecting action of a connecting rod 6, sprinkling the modifier solution from a discharge hole under the action of centrifugal force, thereby uniformly dispersing the modifier into the kettle body, controlling the air intake of the air blower, thereby controlling the rotating speed of the axial flow impeller 5, namely controlling the rotating speed of the spray head 3, when the rotating speed of the spray head 3 is faster, the centrifugal action of fluid 11 in a conical cavity is larger, thereby enabling vortexes of the fluid 11 with different heights to drive a piston plate 9 to move upwards, enabling a support rod 8 to drive a drainage rod 7 to rotate, enabling the outlet section of the discharge hole to be gradually increased, thereby increasing the spraying range of the modifier, greatly improves the dispersion effect, leads the modifier to be more fully contacted with reactants, reduces the time required by stirring of the kettle stirrer and improves the productivity of polyester modification.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A feed mechanism for a polymerization apparatus, comprising: the air inlet pipe is fixed at the output port of the air blower, the bottom end of the air inlet pipe (1) is rotatably connected with a communicating pipe (4), the communicating pipe (4) is rotatably communicated with a modifier inlet pipe (2), the modifier inlet pipe (2) penetrates through the air inlet pipe (1) and is arranged, and a plurality of air inlet holes (13) are formed in the bottom end of the air inlet pipe (1);

the axial-flow type impeller (5), the axial-flow type impeller (5) is fixedly inserted on the communicating pipe (4), and the communicating pipe (4) and the air inlet pipe (1) are arranged concentrically;

the spray head (3) is rotatably connected to the outer side wall of the air inlet pipe (1), the spray head (3) is fixedly connected with the communicating pipe (4) through a connecting rod (6), a plurality of discharge holes are formed in the spray head (3), a flow guide mechanism is arranged in each discharge hole and comprises a flow guide rod (7), and the flow guide rods (7) are lapped on the inner wall of the discharge holes;

piston mechanism, piston mechanism includes piston plate (9), piston plate (9) sliding connection is on shower nozzle (3) inner wall, symmetry fixedly connected with branch (8) on piston plate (9), branch (8) are rotated with drainage pole (7) and are connected, piston plate (9) bottom side is equipped with the toper chamber, fluid (11) are poured into to the toper chamber, the centre bore has been seted up on piston plate (9), centre bore inner wall fixedly connected with sheet rubber (10), piston plate (9) bottom side symmetry fixedly connected with connects rope (12), connect rope (12) keep away from the one end fixed connection of piston plate (9) on the inner wall in toper chamber.

2. The feeding mechanism of a polymerization reaction device as set forth in claim 1, wherein a plurality of said air intake holes (13) are distributed in a circular uniform array, and a plurality of said air intake holes (13) are provided opposite to the axial flow impeller (5).