CN210211269U

CN210211269U - Set up ventilation unit in double screw extruder die head department

Info

Publication number: CN210211269U
Application number: CN201920761213.4U
Authority: CN
Inventors: Zelin Gan; 甘泽霖; Wenzheng Hou; 侯文正; Zewei Ling; 凌泽伟
Original assignee: Chongqing Chuanwei Petrochemical Engineering Co Ltd
Current assignee: Chongqing Chuanwei Petrochemical Engineering Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-03-31
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to the technical field of local ventilation, and discloses a ventilation device arranged at a die head of a double-screw extruder, which comprises a bracket, a ventilation chamber arranged on the bracket and a ventilation hose, wherein the ventilation chamber is covered at the die head of the double-screw extruder; the ventilation chamber is including the fixed knot that is located die head initial position and the telescopic joint of extruding direction telescopic connection along the screw rod, the telescopic joint is established by a plurality of ventilation compartments each other and is formed, sliding connection between two adjacent ventilation compartments, fixed knot and ventilation compartment all include the installing frame and set up the transparent closing plate in the installing frame, the installing frame comprises the top frame that is the rectangle form and the side frame that sets up perpendicularly in the relative both sides bottom of top frame, all install the closing plate in top frame and the side frame, also be provided with the closing plate on the terminal surface at ventilation chamber both ends. The ventilation device is arranged at the die head, so that the loss of waste gas is effectively controlled, high-temperature smoke is diffused in a ventilation chamber, and the pollution to indoor air is effectively reduced.

Description

Set up ventilation unit in double screw extruder die head department

Technical Field

The utility model relates to a local ventilation technical field especially relates to a set up in ventilation unit of double screw extruder die head department.

Background

When the double-screw extruder is used for producing plastic products, a large amount of high-temperature smoke can be dissipated when the die head is in normal production, and the indoor environment is polluted; in addition, a large amount of smoke is dissipated in the air, the sight of operators is blocked, and potential safety hazards exist in production.

The traditional umbrella-shaped cover and the side suction cover are inconvenient to arrange due to space limitation, the distance between the cover opening and a smoke dissipation point is long, and the air exhaust effect is not obvious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can effective control flue gas loss scope, practice thrift the ventilation energy consumption set up in ventilation unit of double screw extruder die head department.

The technical problem to be solved is that: traditional umbrella-shaped cover, side suction hood receive space limitation to arrange inconveniently, and the cover mouth is far away from flue gas loss point distance, and the effect of airing exhaust is not obvious, lead to double screw extruder's die head department can the loss a large amount of high temperature flue gases to indoor, influence operational environment.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a ventilation device arranged at the die head of a double-screw extruder, which comprises a bracket, a ventilation chamber arranged on the bracket and a ventilation hose used for connecting the ventilation chamber and a local ventilation main pipe, wherein the ventilation chamber is covered at the die head of the double-screw extruder;

the ventilation chamber is including the fixed knot that is located die head initial position and the telescopic joint of extruding direction expansion joint along the screw rod, the telescopic joint is established by a plurality of ventilation compartments each other and is formed, sliding connection between two adjacent ventilation compartments, fixed knot and ventilation compartment all include the installing frame and set up the transparent closing plate in the installing frame, the installing frame is U-shaped frame construction, and the opening sets up down, comprises the roof frame that is the rectangle and the side frame that sets up perpendicularly in the relative both sides bottom of roof frame, the side frame is the rectangle, all install in roof frame and the side frame the closing plate, also be provided with the closing plate on the terminal surface at ventilation chamber both ends.

Further, the frame includes foot rest and two interval parallel arrangement at the slide rail on foot rest top, be provided with the spout on the slide rail, ventilation compartment's side frame bottom slidable mounting is in the spout.

Furthermore, a sealing strip is arranged on the inner wall of one side, far away from the fixed section, of the installation frame, and the sealing strip is arranged in a full-length mode along the length direction of the top edge frame or the side frame.

Furthermore, one side of the lateral frame outer side wall of the ventilation compartment, which is far away from the fixing section, is vertically provided with a limiting column protruding outwards.

Further, mounting grooves are formed in the top frame and the side frame, one side of each mounting groove penetrates through the mounting grooves, and the sealing plate is inserted into the mounting grooves.

Further, the air inlet end of the ventilation hose is arranged on the fixed joint.

Furthermore, a connecting pipe is arranged between the ventilation hose and the fixed joint, the connecting pipe is arranged on a sealing plate at the top of the fixed joint and communicated with the inside of the fixed joint, and the ventilation hose is sleeved on the connecting pipe.

The utility model relates to a set up in ventilation unit of double screw extruder die head department compares with prior art, has following beneficial effect:

the die head is provided with the ventilation device, so that the loss of waste gas is effectively controlled, high-temperature smoke is diffused in a ventilation chamber, the pollution to indoor air is effectively reduced, the ventilation effect is ensured, the local ventilation volume is reduced, and the positive effect of saving energy of a ventilation system is achieved.

The ventilation compartments of the ventilation device are mutually sleeved, and two adjacent ventilation compartments are in sliding connection, so that the whole ventilation device can stretch and slide in the extension direction according to the requirement of field operators, and the influence of the ventilation device on the process operation at the die head is reduced to the maximum extent; the ventilation device and the local ventilation main pipe are connected through the hose, so that the following performance of the air pipe when the ventilation device is separated from sliding is guaranteed, the ventilation system can run uninterruptedly, and the whole ventilation device is more convenient to disassemble, assemble and maintain due to the design of the hose.

The ventilation device installed at the die head of the twin-screw extruder according to the present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram I of a ventilation device arranged at a die head of a double-screw extruder;

FIG. 2 is a schematic structural diagram II of a ventilation device provided at a die head of a twin-screw extruder according to the present invention;

FIG. 3 is a schematic structural view of a mounting frame of a ventilation device provided at a die head of a twin-screw extruder according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

the air conditioner comprises a support 1, a ventilation hose 2, an installation frame 3, a top frame 31, a side frame 32, an installation groove 33, a sealing plate 4, a foot rest 5, a sliding rail 6, a sealing strip 7, a limiting column 8, a connecting pipe 9 and a fixing joint 10.

Detailed Description

As shown in fig. 1-4, the ventilation device provided at the die head of the twin-screw extruder of the present invention comprises a bracket 1, a ventilation chamber provided on the bracket 1, and a ventilation hose 2 for connecting the ventilation chamber and a local ventilation trunk, wherein the ventilation chamber is covered at the die head of the twin-screw extruder; the ventilation chamber comprises a fixed joint 10 positioned at the initial position of the die head and a telescopic joint in telescopic connection along the extrusion direction of the screw rod, the telescopic joint is formed by mutually sleeving a plurality of ventilation compartments, two adjacent ventilation compartments are in sliding connection, the fixed joint 10 and the ventilation compartments respectively comprise an installation frame 3 and a transparent sealing plate 4 arranged in the installation frame 3, the sealing plate 4 is made of high-temperature-resistant glass or a transparent acrylic plate, the installation frame 3 is in a U-shaped frame structure, the opening of the installation frame is downwards arranged, the installation frame is composed of a rectangular top frame 31 and side frames 32 vertically arranged at the bottoms of two opposite sides of the top frame 31, the side frames 32 are rectangular, the sealing plates 4 are respectively arranged in the top frame 31 and the side frames 32, the sealing plates 4 are also arranged on the end faces at two ends of the ventilation chamber, the air inlet end of the ventilation hose 2 is arranged on the fixed joint 10, a connecting pipe 9 is arranged between, connecting pipe 9 sets up on the closing plate 4 at fixed knot 10 top, is linked together with fixed knot 10 is inside, and the cover is established on connecting pipe 9 to ventilation hose 2, and local ventilation main pipe passes through ventilation hose 2 and with the inside high temperature flue gas suction of ventilation chamber, reduces high temperature flue gas at indoor diffusion, causes indoor air pollution and blocks operating personnel sight.

The support 1 comprises a foot rest 5 and two slide rails 6 which are arranged at the top end of the foot rest 5 at intervals in parallel, a slide groove is arranged on the slide rail 6, and the bottom of the side frame 32 of the ventilation compartment is slidably arranged in the slide groove. The expansion joint is designed in a segmented mode, all the segments are connected in a sliding mode, the whole ventilating device can stretch and slide along the extruding direction of the screw according to the requirements of field operators, and the influence of the ventilating device on the process operation at the die head is reduced to the maximum extent.

The inner wall of one side of the mounting frame 3, which is far away from the fixed joint 10, is provided with a sealing strip 7, the sealing strip 7 is arranged along the length direction of the top frame 31 or the side frame 32, and the outer side surface of the sealing strip 7 is attached to the outer side wall of the sealing plate 4 on the adjacent ventilation compartment. The sealing strips 7 enable the sealing performance between two adjacent ventilation compartments to be better, and gas diffusion and escape into a room are reduced.

The side of the outer side wall of the side frame 32 of the ventilation compartment, which is far away from the fixed joint 10, is vertically provided with a limiting column 8 which protrudes outwards. Spacing post 8 conveniently stimulates the ventilation compartment, adjusts the length dimension of ventilation chamber.

Mounting groove 33 has all been seted up in top frame 31 and the side frame 32, and the setting is run through to one side of mounting groove 33, and sealing plate 4 inserts and establishes in mounting groove 33, adopts this kind of mounting means, conveniently changes sealing plate 4.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a set up ventilation unit in twin-screw extruder die head department which characterized in that: the device comprises a bracket (1), a ventilation chamber arranged on the bracket (1), and a ventilation hose (2) used for connecting the ventilation chamber and a local ventilation main pipe, wherein the ventilation chamber is covered at a die head of a double-screw extruder;

the ventilation chamber is including being located fixed festival (10) of die head initial position and the telescopic joint of extruding direction telescopic connection along the screw rod, the telescopic joint is established each other by a plurality of ventilation compartments and is formed, sliding connection between two adjacent ventilation compartments, fixed festival (10) and ventilation compartment all include installing frame (3) and transparent closing plate (4) of setting in installing frame (3), installing frame (3) are U-shaped frame structure, and the opening sets up down, comprises topside frame (31) and the perpendicular side frame (32) that set up in topside frame (31) both sides bottom relatively that are the rectangle form, side frame (32) are the rectangle, all install in topside frame (31) and side frame (32) closing plate (4), also be provided with closing plate (4) on the terminal surface at ventilation chamber both ends.

2. A venting device provided at a die head of a twin-screw extruder according to claim 1, wherein: the support (1) comprises a foot rest (5) and two sliding rails (6) which are arranged on the top end of the foot rest (5) in parallel at intervals, sliding grooves are formed in the sliding rails (6), and the bottoms of side frames (32) of the ventilation compartments are slidably mounted in the sliding grooves.

3. A venting device provided at a die of a twin-screw extruder according to claim 2, wherein: and a sealing strip (7) is arranged on the inner wall of one side of the mounting frame (3) far away from the fixed section (10), and the sealing strip (7) is arranged in a full-length manner along the length direction of the top edge frame (31) or the side frame (32).

4. A venting device provided at a die of a twin-screw extruder according to claim 3, wherein: and one side of the outer side wall of the side frame (32) of the ventilation compartment, which is far away from the fixed joint (10), is vertically provided with a limiting column (8) which protrudes outwards.

5. A venting device provided at a die head of a twin-screw extruder according to claim 4, wherein: mounting grooves (33) are formed in the top frame (31) and the side frame (32), one side of each mounting groove (33) penetrates through the corresponding mounting groove, and the sealing plate (4) is inserted into the corresponding mounting groove (33).

6. A venting device provided at a die head of a twin-screw extruder according to claim 1, wherein: the air inlet end of the ventilation hose (2) is arranged on the fixed joint (10).

7. A venting device provided at a die head of a twin-screw extruder according to claim 6, wherein: a connecting pipe (9) is arranged between the ventilation hose (2) and the fixed joint (10), the connecting pipe (9) is arranged on a sealing plate (4) at the top of the fixed joint (10) and communicated with the inside of the fixed joint (10), and the ventilation hose (2) is sleeved on the connecting pipe (9).