CN2124063U

CN2124063U - Static polymerization extruder

Info

Publication number: CN2124063U
Application number: CN 92223691
Authority: CN
Inventors: 张昕; 季鸿渐; 陈贯之; 车吉泰; 李志宏
Original assignee: Changchun Institute of Applied Chemistry of CAS
Current assignee: Changchun Institute of Applied Chemistry of CAS
Priority date: 1992-05-30
Filing date: 1992-05-30
Publication date: 1992-12-09

Abstract

The utility model discloses a device for polymerization for visco-elasticity polymer materials. The utility model designs a static polymerization extruding device which is composed of a static polymerization kettle and a screw extruder. An elliptical upper sealing head is provided with a water inlet pipe, a water outlet pipe, a feeding pipe, a temperature measuring pipe, and an air pipe. The inner part of the kettle is provided with a plurality of inner straight pipes and outer straight pipes which are distributed in equal distance in the shape of a concentric circle. The lower part of the kettle body is designed into the inclined square; the direction vertical to the lower part of the kettle body is welded with a discharging machine barrel whose both ends have flanges through the lower part of the kettle body. One end of the discharging machine barrel is connected with an electric machine and the other end is connected with a discharging barrel provided with a die. The utility model is the ideal equipment for the polymerization of the visco-elasticity polymer materials.

Description

Static polymerization extruder

The invention relates to the polymerizing reactor of viscoplasticity macromolecule material.

People generally adopt polymerization reaction kettle when carrying out the polymerization of viscoplasticity macromolecule material at present, and the method for also useful plate polymerization is carried out.The polymerization reaction kettle that Wuxi Nan Quan petrochemical equipment factory produces by kettle add, low head forms.The shape of its kettle is cylindrical, and its upper end is welded with flange, and flanged (FLGD) ovalize upper cover connects with it with bolt, its lower end end socket is taper, at its bottom device discharging opening, an agitator is arranged, in the kettle by the motor drives rotation that is fixed on the upper cover.The coiled pipe heat transfer unit (HTU) also is housed in the kettle.Kettle is welded with cylindrical jacket outward.This device is when carrying out viscoplasticity macromolecule material polymerisation, because the polymerisation liberated heat is big, solution viscosity is big again, so heat radiation and discharging are all difficult.The plate polymerization is to carry out in the tank that can control water temperature, be placed with many trapezoidal cans wide at the top and narrow at the bottom in the tank, keep at a certain distance away each other, be lined with polyethylene film in the can, in the film pocket, inject the material for preparing by manually-operated, after the heat tracing polymerization,, tear polyethylene film and take out polymer again by manually the polymer that is surrounded by polyethylene film being poured out from can.Though this method can in time be distributed a large amount of polymerization reaction heats, because working area is big, auxiliary material (polyethylene film) and unproductive time consume high, and labour intensity is big, poor working environment.Therefore, the application of this plate polymerization in industrial production also is subjected to certain restriction.

The purpose of this utility model provides a kind of device that carries out polymerization at the viscoplasticity macromolecule material.

The utility model has designed a kind of static polymerization extrusion device of being made up of static polymeric kettle and screw extruder.The utility model is welded with water inlet pipe and outlet pipe in the overcoat side of a tubular reactor, on oval-shaped upper cover, designed water inlet pipe, outlet pipe, charge pipe, temperature tube and breather pipe have designed in the kettle to have and have been the no several inside and outside straight tube that concentric circles is equally spaced.The bottom of kettle is designed to rhomboid, is welded with all flanged (FLGD) discharge machine barrel in two ends with kettle lower vertical direction by the bottom, and discharge machine barrel one end and motor join, and the other end joins with the discharge barrel that mouthful mould is housed.

The technical solution of the utility model accompanying drawings is as follows:

Accompanying drawing 1 is the schematic diagram of static polymerization extrusion device.

1 kettle, 2 kettle overcoats, 3 outside heads, 4 flange tube sheets, 5 interior end socket 6 outer straight tube 7 interior straight tube 8 discharge machine barrels 9 conical screws 10 reductors 11

motors

12,13 die orifices, 14 water inlet pipes, 15 outlet pipes, 16 charge pipes, 17 temperature tubes, 18 breather pipes, 19 water inlet pipes, 20 outlet pipes, 21 inflation inlets, 22 discharging openings, 23 charging connections, 24 discharge barrel accompanying drawings 2 are 25 glands, 26 sealing rings among die extrusion and the mixer schematic diagram figure among the figure.

Kettle among Fig. 1 (1) shape is the garden cylindricality, uses the stainless steel manufacturing, the inner surface mirror finish, its upper end is welded with ring flange, the external overcoat made from common straightcarbon steel that is welded with, and the overcoat side is welded with outlet pipe (20), kettle (1) bottom is rhomboid, and the bottom is welded with water inlet pipe (19).The end socket of ovalize is by outer end socket (3), interior end socket (5) and assembly of flange tube sheet (4) formation welded together.Flange tube sheet (4) and kettle upper flanges dish Bolt Connection are with closing end component and the fastening one of kettle.Be welded with charge pipe (16) on the outer end socket (3), temperature tube (17), breather pipe (18), end socket (5) communicates with kettle (1) inner chamber in their break-through, water inlet pipe (14) communicates with interior end socket (5) inner chamber, and outlet pipe (15) communicates with outer end socket (3) inner chamber.Be welded with on the interior end socket (5) and be the no several interior straight tube (7) that concentric circles is equally spaced.Also be welded with on the flange tube sheet (4) and be enclosed within interior straight tube (7) outside and outer straight tube (6) interior straight tube (7) equal number, outer straight tube (6) outer surface ptfe coating, they are straight cutting kettle (1) intracavity bottom in parallel to each other.Kettle (1) bottom is welded with the flanged (FLGD) discharge machine barrels in two ends (8).One end flanges of discharge machine barrel links with motor (11) flange that has reductor (10).The other end flange of discharge machine barrel connects with discharge barrel (24) flange.Mouth mould (12), (13) are fixed on discharge barrel (24) one ends with cylindrical centering.Be drilled with on mouthful mould (12) and be the numerous taper hole that concentric circles is equally spaced, at get on the bus cannelure and mill radial slot and communicate with each taper hole respectively of its end face.Be drilled with on the mouth mould (13) and the concentric also circular hole of equal number of mouthful mould (12).Liquid-feeding tube joint (23) hole aligns between a mouthful mould (12), (13) both ends of the surface.1 conical screw (9) is arranged in the discharge machine barrel (8), and screw rod one end-journal endoporus is inserted on motor (11) main shaft, and other end axle journal is bearing on the axis hole of a mouthful mould (12), (13).Needle valve inflation inlet (21).Can charge into required protective gas.Discharging opening (22).

Water liquid is flowed into by water inlet pipe (19), and chuck between kettle of flowing through (1) and the overcoat (2) is discharged from outlet pipe (20), and inlet tube and outlet tube and auxiliary equipment tank link and form outer temperature control circulation.The while from top to down enters the bottom of no several straight tube (6) in the separate space inside and outside water liquid is flowed into by water inlet pipe (14) between end socket (3), (5), the inner chamber of end socket (5) is discharged from outlet pipe (15) again in being flowed into from the center of interior straight tube (7) from bottom to up by the bottom again.Inlet tube and outlet tube and auxiliary equipment tank link and form internal layer temperature control circulation.

Mouthful mould (12) (13) is contained in extruder head gland (25) and discharge barrel (24) inner stopper with cylindrical centering among Fig. 2, O-ring seals (26) is equipped with at two mouthfuls of mould back sides, connect the flange on flange on the extruder head gland (25) and the discharge barrel (24) fastening with bolt, at this moment, two mouthfuls of mould cylindricals are sealed by O-ring seals and fix.The internal diameter of mouth mould (12) (13) is made screw rod (9) axle journal seat.Mouthful mould is drilled with the numerous taper hole that concentric circles is equally spaced that is on (12), and got on the bus cannelure and be milled with radial slot and communicate with each taper hole respectively of its end face is drilled with on mouthful mould (13) and the concentric also cylindrical hole of equal number of membrana oralis (12) taper hole.Mixed liquid pipe connection (23) is housed on the extruder head gland (25), and the through hole of mixed liquid pipe connection (23) aligns the cannelure on a mouthful mould (12) cylindrical.Push polymer to a mouthful mould (12), (13) material when screw rod (9) and be extruded into strip when discharging through taper hole and cylindrical hole, mixing liquid joint (23) simultaneously turns on, the cannelure of flow of solution inlet mould (12) cylindrical, blurt out mould (12) (13) both ends of the surface inlet port mould (12) end face cannelure and radial slot, thereupon with solution very equably attached to the outer surface of the no several bars that are extruded.

Sealed discharging mouth (22) at first before the charging, the threeway of opening on the breather pipe (18) vacuumizes.Turn on inflation inlet (21) valve rod inflation deoxygenation, close each valve again.The actuating motor (11) and the material that will be mixed with are in advance poured into from charge pipe 16 and are flow in the kettle (1) then, and through the ectonexine temperature control, polymerisation is finished in control.When needing discharge, open discharging opening (22), the triple valve of opening on the breather pipe (18) charges into compressed air, back-to-back starting motor (11) drives screw rod (9) reverse rotation thereupon, polymer is advanced to discharging opening (22) direction, from mouth mould (12), (13) be extruded into bar in the numerous circular hole, connect charging connection (23) simultaneously, make solution along mouth mould (12), (13) cannelure on the both ends of the surface inflow entrance mould (12) and radial slot are attached on the cylinder bar polymer surfaces, and causing polymer to be no several cylinder bar surface attachment has the bar of solution to be extruded.

The utility model is no several inside and outside straight tube and the closing end component formation ectonexine heat-exchange system that concentric circles is equally spaced owing to putting to have designed inlet tube and outlet tube and designed in kettle outside kettle, polymerization reaction heat is come out in large quantities, thereby guarantee that molecular weight distribution is narrow.The utility model has also designed inflation inlet and blow vent, can charge into various protective gas and remove oxygen.The screw rod of kettle bottom, the design of the discharge gate mould of band liquid bath makes discharge and mixed liquid mechanization, and compared with the prior art automation has greatly improved undoubtedly.

Claims

1, a kind of static polymerization extrusion device, be to add by columniform reactor, low head is formed, kettle is welded with cylindrical jacket outward, the coiled pipe heat transfer unit (HTU) is housed in the kettle, of the present utility model being characterised in that, the end socket of ovalize is by outer end socket (3), interior end socket (5) and assembly of flange tube sheet (4) formation welded together, on oval-shaped upper cover, designed water inlet pipe (14), outlet pipe (15), charge pipe (16), temperature tube (17) and breather pipe (18), be welded with on the end socket in kettle (5) and be the no several inside and outside straight tube (7) (6) that concentric circles is equally spaced, they are straight cutting kettle (1) intracavity bottom in parallel to each other, be designed to rhomboid in the kettle bottom, be welded with all flanged (FLGD) discharge machine barrel in two ends with kettle lower vertical direction by the bottom, discharge machine barrel one end flanges and motor join, the other end with have the discharge barrel (24) that liquid bath mouth mould (12) (13) can mix liquid and join, flange on the discharge barrel (24) connects with flange on the extruder head gland (25), and mixed liquid pipe connection (23) is housed on the extruder head gland (25).

2, polymerization extrusion device as claimed in claim 1 is characterized in that described water inlet pipe (14) communicates with interior end socket (5) inner chamber, and outlet pipe (15) communicates with outer end socket (3) inner chamber.

3, polymerization extrusion device as claimed in claim 1 is characterized in that described temperature tube (17), and end socket (5) communicates with kettle (1) in their break-through of breather pipe (18).

4, polymerization extrusion device as claimed in claim 1 is characterized in that the mouth mould (12) (13) of described band liquid bath is fixed on discharge barrel (24) one ends with cylindrical centering.

5, polymerization extrusion device as claimed in claim 1 is characterized in that the described mouth mould (13) (12) that has liquid bath has following structure:

1) is drilled with the numerous taper hole that concentric circles is equally spaced on mouthful mould (12), got on the bus cannelure and be milled with radial slot and communicate with taper hole respectively of its end face.

2) be drilled with on mouthful mould (13) concentric and the cylindrical hole of equal number arranged with mouth mould (12) taper hole.

3) mouthful mould (12) (a 13) cylindrical has O-ring seals (26) sealing.

6, polymerization extrusion device as claimed in claim 1 is characterized in that, the through hole of the mixed liquid pipe connection (23) on the extruder head gland (25) aligns the cannelure on a mouthful mould (12) cylindrical.