Intercepting device for vacuum pipeline of homogenizing kettle

Abstract

The utility model discloses a cut-off device for a vacuum pipeline of a homogenizing kettle in the field of chemical fibers, which comprises a vertically arranged cylindrical homogenizing kettle, a vertical stirring shaft is rotatably arranged in the homogenizing kettle, a feed port is formed in the upper part of the homogenizing kettle, a discharge port is formed in the lower part of the homogenizing kettle, a suction cylinder is arranged at the lower part of the side surface of the homogenizing kettle, and a discharge port is formed in the discharge port of the homogenizing kettle. The suction cylinder is connected with a transition cylinder, a cut-off assembly is arranged in the transition cylinder, the other end of the transition cylinder is connected with a condenser, and the other end of the condenser is connected with a pump. The service life of the pump can be prolonged, the workload of disassembling and cleaning the pump is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical fiber, and specifically relates to a vacuum pipeline interception device for a homogenization kettle. Background Technology

[0002] The processing of polyester fiber requires the use of a reaction vessel. The main function of the polyester fiber homogenizing vessel, through its unique design and functionality, is to improve the uniformity and efficiency of mixing during the processing of polyester filament. The polyester fiber homogenizing vessel solves the problems of uneven mixing, long mixing time, and low working efficiency that exist in existing reaction vessels when processing polyester filament.

[0003] Currently, when molten raw materials are stirred in a homogenizing tank, small molecule impurities are easily generated. In order to improve the purity of the raw materials, it is necessary to extract the small molecule impurities by pumping them out. However, the disadvantage is that a large number of impurities in the raw materials will also affect the service life of mechanical pumps and jet pumps, and it is often necessary to disassemble mechanical pumps and jet pumps to clean impurities, which increases the workload and affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum pipeline shut-off device for a homogenizing reactor, which can extend the service life of the pump, reduce the workload of disassembling and cleaning the pump, and improve work efficiency.

[0005] The purpose of this utility model is achieved as follows: A vacuum pipeline throttling device for a homogenizing kettle includes a vertically arranged cylindrical homogenizing kettle. A vertical stirring shaft is rotatably arranged inside the homogenizing kettle. A feed inlet is opened at the top of the homogenizing kettle, and a discharge outlet is opened at the bottom of the homogenizing kettle. A suction cylinder is provided on the lower side of the homogenizing kettle. The suction cylinder is connected to a transition cylinder. A throttling component is provided inside the transition cylinder. A condenser is connected to the other end of the transition cylinder, and the other end of the condenser is connected to a pump.

[0006] As a further improvement of this utility model, the upper end of the stirring shaft extends out of the homogenization vessel and is connected to a geared motor on the upper support of the homogenization vessel. Stirring blades are provided on the outer circumference of the stirring shaft, and several support legs are provided at the lower end of the homogenization vessel. The geared motor drives the stirring blades to rotate, stirring the molten raw materials inside the vessel.

[0007] As a further improvement of this utility model, the transition cylinder includes a cylinder body, and the intercepting assembly includes two corresponding positioning rings coaxially arranged inside the cylinder body. Several circumferentially distributed fixing rods are radially arranged on the outer periphery of the positioning rings, and the ends of each fixing rod are fixed to the inner wall of the cylinder body. An installation shaft passes axially through the two positioning rings in sequence. One end of the installation shaft is provided with a positioning plate that abuts against the corresponding positioning ring, and the other end of the installation shaft is provided with a threaded section. A locking nut is fitted around the outer periphery of the threaded section and abuts against another positioning ring. Several blocking blades are arranged on the outer periphery of the installation shaft located between the two positioning rings, and any two adjacent blocking blades are staggered circumferentially. When the pump draws small molecule impurities from the molten raw material in the homogenization kettle through the suction cylinder, the blocking blades block the impurities, preventing them from affecting the pump and eliminating the hassle of frequently disassembling the pump for cleaning.

[0008] As a further improvement of this utility model, the blocking blade is fan-shaped.

[0009] As a further improvement of this utility model, the suction cylinder is provided with flange one at one end, and flange two is provided at both ends of the transition cylinder. The corresponding flange two of the transition cylinder is fixedly connected to flange one. Flange two and flange one are fixed by several circumferentially distributed fasteners, and can be disassembled for cleaning.

[0010] As a further improvement of this utility model, the condenser is a shell-and-tube condenser. The condenser contains two corresponding end plates, with a shell-and-tube assembly positioned between them. The assembly is connected to the front of one end plate and the rear of the other. The condenser has a tube-side inlet and a tube-side outlet at its front and rear ends, respectively, and a shell-side inlet and a shell-side outlet on its upper and lower sides, respectively. The condenser contains several baffles fixed to the shell-and-tube assembly. The tube-side inlet of the condenser is fixed to the corresponding flange of the transition cylinder via flange three. Molten raw material pumped by the pump enters the shell-and-tube assembly through the tube-side inlet and exits through the tube-side outlet; the coolant for heat exchange enters the condenser through the shell-side inlet and exits through the shell-side outlet.

[0011] In operation, the pump draws small-molecule impurities from the molten material in the homogenization vessel through the suction cylinder, while the impurities are blocked by the blocking blades inside the transition cylinder. The molten material enters the tube assembly of the condenser through the tube-side inlet and then exits from the tube-side outlet. The heat exchange coolant enters the condenser through the shell-side inlet and then exits from the shell-side outlet, cooling the molten material. The pump can be a mechanical pump, a jet pump, or a series of mechanical or jet pumps. Compared with the prior art, the advantages of this invention are: it can extend the service life of the pump, reduce the workload of disassembling and cleaning the pump, and improve work efficiency; it blocks molten impurities in the vacuum through layers of blocking blades and periodically discharges them from the drain valve, reducing damage to the mechanical and jet pump bodies; and it reduces damage to the pump body and seals caused by normal disassembly and cleaning, thus reducing poor vacuum levels. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the transition cylinder.

[0014] Figure 3 This is a schematic diagram of the end face structure of the positioning ring and each fixing rod.

[0015] Figure 4 This is a schematic diagram of the structure that blocks the blades.

[0016] Figure 5 This is a schematic diagram of the condenser.

[0017] The components include: 1. Homogenizing vessel; 2. Stirring shaft; 3. Inlet; 4. Outlet; 5. Suction cylinder; 5a. Flange 1; 6. Transition cylinder; 601. Cylinder body; 602. Positioning ring; 603. Fixing rod; 604. Mounting shaft; 604a. Positioning plate; 605. Locking nut; 606. Baffle blade; 6a. Flange 2; 7. Condenser; 8. Pump; 9. Bracket; 10. Gear motor; 11. Support leg; 12. End plate; 13. Tube assembly; 14. Tube-side inlet; 15. Tube-side outlet; 16. Shell-side inlet; 17. Shell-side outlet; 18. Baffle; 19. Flange 3. Detailed Implementation

[0018] like Figure 1-5 As shown, a vacuum pipeline throttling device for a homogenizing vessel includes a vertically arranged cylindrical homogenizing vessel 1. A vertical stirring shaft 2 is rotatably installed inside the homogenizing vessel 1. The upper end of the stirring shaft 2 extends out of the homogenizing vessel 1 and is connected to a reduction motor 10 on a support 9 at the upper end of the homogenizing vessel 1. Stirring blades are provided on the outer periphery of the stirring shaft 2. Several support legs 11 are provided at the lower end of the homogenizing vessel 1. The reduction motor 10 drives the stirring blades to rotate and stir the molten raw materials in the vessel. A feed inlet 3 is opened at the upper part of the homogenizing vessel 1, and a discharge outlet 4 is opened at the lower part of the homogenizing vessel 1. A suction cylinder 5 is provided on the lower side of the homogenizing vessel 1. The suction cylinder 5 is connected to a transition cylinder 6. A throttling component is provided inside the transition cylinder. A condenser 7 is connected to the other end of the transition cylinder 6. The other end of the condenser 7 is connected to a pump 8.

[0019] The suction cylinder 5 has a flange 5a at one end, and the transition cylinder has flanges 6a at both ends. The corresponding flanges 6a on the transition cylinder are fixedly connected to flange 5a. Flanges 6a and flange 5a are fixed together by several circumferentially distributed fasteners, and can be disassembled for cleaning.

[0020] The transition cylinder includes a cylinder body 601. The flow-blocking assembly includes two corresponding positioning rings 602 coaxially arranged inside the cylinder body 601. Several fixing rods 603 are radially arranged on the outer periphery of the positioning rings 602 and evenly distributed along the circumference. The ends of each fixing rod 603 are fixed to the inner wall of the cylinder body 601. The mounting shaft 604 passes axially through the two positioning rings 602 in sequence. One end of the mounting shaft 604 is provided with a positioning plate 604a that abuts against the corresponding positioning ring 602. The other end of the mounting shaft 604 is provided with a threaded section. A locking nut 605 is sleeved on the outer periphery of the threaded section. The locking nut 605 abuts against another positioning ring 602. Several blocking blades 606 are arranged on the outer periphery of the mounting shaft 604 located between the two positioning rings 602. The blocking blades 606 are fan-shaped. Any two adjacent blocking blades 606 are staggered along the circumference. When pump 8 draws small molecule impurities from the molten raw material in homogenizing kettle 1 through suction cylinder 5, it blocks the impurities by using blocking blade 606 to prevent the impurities from affecting the pump 8 and saves the trouble of frequently disassembling pump 8 for cleaning.

[0021] The condenser 7 is a shell-and-tube condenser. It contains two corresponding end plates 12, with a tube assembly 13 positioned between them. The tube assembly 13 is connected to the front of one end plate 12 and the rear of the other. The condenser 7 has a tube-side inlet 14 and a tube-side outlet 15 at its front and rear ends, respectively, and a shell-side inlet 16 and a shell-side outlet 17 on its upper and lower sides, respectively. The condenser 7 contains several baffles 18 fixed to the tube assembly 13. The tube-side inlet 14 is fixed to the corresponding flange 6a of the transition cylinder via flange three 19. Molten raw material drawn by the pump 8 enters the tube assembly 13 through the tube-side inlet 14 and exits through the tube-side outlet 15. Coolant for heat exchange enters the condenser 7 through the shell-side inlet 16 and exits through the shell-side outlet 17.

[0022] In operation, when pump 8 draws small molecule impurities from the molten material in homogenizing vessel 1 through suction cylinder 5, the impurities are blocked by the blocking blades 606 inside the transition cylinder. The molten material enters the tube assembly 13 of condenser 7 through tube-side inlet 14 and is discharged from tube-side outlet 15. The heat exchange coolant enters condenser 7 through shell-side inlet 16 and is discharged from shell-side outlet 17, cooling the molten material. Pump 8 is a mechanical pump, jet pump, or a series of mechanical and jet pumps. The advantages of this invention are: it can extend the service life of pump 8, reduce the workload of disassembling and cleaning pump 8, and improve work efficiency; it blocks molten impurities in the vacuum through layers of blocking blades 606 and periodically discharges them from the drain valve, reducing damage to the mechanical and jet pump bodies; and it reduces damage to the pump body and seals caused by normal disassembly and cleaning, which can lead to poor vacuum.

[0023] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A vacuum pipeline choke device for a homogenizing reactor, comprising a vertically arranged cylindrical homogenizing reactor, wherein a vertical stirring shaft is rotatably arranged inside the homogenizing reactor, an inlet is provided at the upper part of the homogenizing reactor, and an outlet is provided at the lower part of the homogenizing reactor, characterized in that, The homogenizing reactor is equipped with a suction cylinder on its lower side, which is connected to a transition cylinder. The transition cylinder is equipped with a flow-blocking component, and the other end of the transition cylinder is connected to a condenser. The other end of the condenser is connected to a pump.

2. The homogenization reactor vacuum pipeline shut-off device according to claim 1, characterized in that, The upper end of the stirring shaft extends out of the homogenization vessel and is connected to the geared motor on the upper support of the homogenization vessel. The stirring shaft is provided with stirring blades on its outer periphery, and the lower end of the homogenization vessel is provided with several support legs.

3. A vacuum pipeline shut-off device for a homogenizing reactor according to claim 1 or 2, characterized in that, The transition cylinder includes a cylinder body. The flow interception assembly includes two corresponding positioning rings coaxially arranged inside the cylinder body. Several fixing rods are radially arranged on the outer periphery of the positioning rings and evenly distributed along the circumference. The ends of each fixing rod are fixed to the inner wall of the cylinder body. The mounting shaft passes through the two positioning rings axially in sequence. One end of the mounting shaft is provided with a positioning plate that abuts against the corresponding positioning ring. The other end of the mounting shaft is provided with a threaded section. A locking nut is sleeved on the outer periphery of the threaded section and abuts against another positioning ring. Several blocking blades are arranged on the outer periphery of the mounting shaft located between the two positioning rings. Any two adjacent blocking blades are staggered along the circumference.

4. The vacuum pipeline shut-off device for a homogenizing reactor according to claim 3, characterized in that, The blocking blades are fan-shaped.

5. A vacuum pipeline shut-off device for a homogenizing reactor according to claim 1 or 2, characterized in that, The suction cylinder has a flange one at one end, and the transition cylinder has flange two at both ends. The corresponding flange two of the transition cylinder is fixedly connected to flange one.

6. A vacuum pipeline shut-off device for a homogenizing reactor according to claim 1 or 2, characterized in that, The condenser is a shell-and-tube condenser, with two corresponding end plates inside. A shell-and-tube assembly is provided between the two end plates. The shell-and-tube assembly is connected to the front of one end plate and the rear of the other end plate, respectively. The front and rear ends of the condenser are respectively provided with tube-side inlet and tube-side outlet, and the upper and lower sides of the condenser are respectively provided with shell-side inlet and shell-side outlet.

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