CN217971636U

CN217971636U - Utilize polypropylene replacement cauldron as pneumatic conveyor of sending jar

Info

Publication number: CN217971636U
Application number: CN202221551709.7U
Authority: CN
Inventors: 熊鸿华; 邱生祥
Original assignee: Xiamen Longjing Environmental Protection Material Technology Co ltd
Current assignee: Xiamen Longjing Environmental Protection Material Technology Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-12-06
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses an utilize polypropylene replacement cauldron as pneumatic conveyor of sending jar in the polypropylene production technical field, the pressure boost air valve subassembly has connected gradually replacement cauldron, discharge valve subassembly, first tee bend material pipe, second tee bend material pipe and terminal storehouse along the air current direction of advance, another discharge gate and the import of urgent blow-off valve of first tee bend material pipe are connected, another air inlet and the delivery air valve subassembly output of second tee bend material pipe are connected, air knife air valve subassembly output is connected between second tee bend material pipe and terminal storehouse; the utility model has simple structure, and effectively reduces the manufacturing and using cost of the equipment by using the replacement kettle as the sending tank; appropriate conveying gas and gas knife gas pressure values are correspondingly matched, so that the material conveying efficiency is improved; the discharged material is made into a three-way form and is matched with an emergency discharge valve to facilitate emergency treatment of unqualified products; through level indicator feedback signals, the air quantity at the pressurizing air end and the rotating speed of the stirrer are automatically adjusted, and the discharge quantity is adjusted at any time according to requirements.

Description

Utilize polypropylene replacement cauldron as pneumatic conveyor of sending jar

Technical Field

The utility model relates to a polypropylene production technical field specifically is an utilize pneumatic conveyor of polypropylene replacement cauldron as sending tank.

Background

Polypropylene is a colorless, translucent, non-toxic thermoplastic resin, has many excellent characteristics and processability, and has high transparency, non-toxicity, light specific gravity, easy processing, impact resistance, high strength, chemical corrosion resistance, good distortion resistance and good electrical insulation property, thereby having wide application range.

The polypropylene powder is stored from a semi-finished product to a finished product and is subjected to two stages of displacement reaction and conveying. These two stages are currently often performed separately. The replacement reaction stage is completed in the replacement kettle, and then the replacement kettle is transferred into a sending tank, and materials are sent into a storage bin through pneumatic conveying, a conveying belt or spiral conveying.

When a pneumatic conveying system is adopted, the device needs a replacement kettle device and a sending device, and the sending device usually adopts a rotary feeding valve. For example, chinese patent CN204400887U discloses a post-treatment device for polypropylene powder, which adopts a rotary feeding valve feeding mode. This arrangement is costly, since the higher the pressure resistance of the rotary feed valve, the more expensive it is; when the rotary feeding valve is adopted for conveying, because a gap exists between the impeller of the rotary feeding valve and the shell, and after the impeller discharges materials, part of compressed gas in the impeller cavity can return to the upper storage bin and is discharged to an external pipeline, the gas consumption is relatively large;

when the configuration is adopted, the configuration of the system 1 is more complex, and the manufacturing and using cost is higher; 2. the rotary feeding valve has high pressure resistance requirement and high price; 3. when unqualified products appear, the rotary valve cannot be discharged outside in time for treatment.

Based on this, the utility model designs an utilize polypropylene replacement cauldron as the pneumatic conveyor who sends the jar to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utilize polypropylene replacement cauldron as the pneumatic conveyor who sends the jar to the rotatory feed valve that provides carries polypropylene to have the structure complicacy, can not in time arrange the problem of handling outward in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an utilize pneumatic conveyor of polypropylene replacement cauldron as sending jar, includes pressure boost air valve subassembly, air knife air valve subassembly and the transport air valve subassembly through air supply air feed and parallelly connected setting, its characterized in that: the pressurizing air valve assembly is sequentially connected with a replacement kettle, a discharge valve assembly, a first three-way material pipe, a second three-way material pipe and a terminal bin along the advancing direction of air flow; and the rest discharge port of the first three-way material pipe is connected with an inlet of an emergency discharge valve, the rest air inlet of the second three-way material pipe is connected with the output end of the conveying air valve assembly, and the output end of the air knife air valve assembly is connected between the second three-way material pipe and the terminal bin.

Preferably, the discharge valve assembly adopts a pneumatic ball valve.

Preferably, a manual valve is installed between the first three-way material pipe and the second three-way material pipe.

Preferably, the second three-way material pipe is connected with the terminal bin through a material conveying pipe, and the air knife air valve assembly is connected with the starting end of the material conveying pipe through an air pipe.

Preferably, the gas delivered by the gas source adopts nitrogen.

Preferably, the replacement tank is internally provided with a stirring device.

Preferably, the replacement kettle is provided with an exhaust valve, a blanking valve and a level indicator.

Preferably, the pressurization air valve assembly and the conveying air valve assembly are sequentially provided with a self-operated regulating valve, a pneumatic air inlet valve, a manual ball valve and a check valve along the advancing direction of the air flow, and the air knife air valve assembly is sequentially provided with a self-operated regulating valve, a pneumatic pulse valve and a check valve along the advancing direction of the air flow.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, and effectively reduces the manufacturing and using cost of the equipment by using the replacement kettle as the sending tank; the proper conveying gas and gas knife gas pressure values are correspondingly matched, so that the material conveying efficiency is improved; the discharged material is made into a three-way form and is matched with an emergency discharge valve to facilitate emergency treatment of unqualified products; through level indicator feedback signals, the air quantity at the pressurizing air end and the rotating speed of the stirrer are automatically adjusted, and the discharge quantity is adjusted at any time according to requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

1. A gas source; 2. a booster valve assembly; 3. an exhaust valve; 4. a discharge valve; 5. a level gauge; 6. a displacement kettle; 7. a discharge valve assembly; 8. an air knife air valve assembly; 9. a delivery gas valve assembly; 10. a first three-way material pipe; 11. an emergency drain valve; 12. a manual valve; 13. a second three-way material pipe; 14. a delivery pipe; 15. And (4) a terminal bin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses an embodiment:

a booster air valve component 2, an air knife air valve component 8 and a conveying air valve component 9 are connected in parallel and all supply air through an air source 1, the air conveying end of the booster air valve component 2 is connected with a replacement kettle 6, a discharge valve component 7 is installed at the bottom of the replacement kettle 6, the discharge end of the discharge valve component 7 is connected with the feed end of a first three-way material pipe 10, one discharge end of the first three-way material pipe 10 is connected with an emergency discharge valve 11, the other discharge end of the first three-way material pipe 10 is connected with the feed end of a manual valve 12, the discharge end of the manual valve 12 is connected with the feed end of a second three-way material pipe 13, the air inlet end of the second three-way material pipe 13 is connected with the air outlet end of the conveying air valve component 9, the discharge end of the second three-way material pipe 13 is connected with a terminal bin 15 through a material conveying pipe 14, and the air outlet end of the air knife air valve component 8 is connected with the material conveying pipe 14;

6 built-in agitating unit of replacement cauldron, and the agitating unit rotational speed can be adjusted, and discharge valve 3, unloading valve 4 and charge level indicator 5 are installed at 6 tops of replacement cauldron, and 5 top-down run through whole replacement cauldron 6 and are used for responding to whole transportation process material level situation of change of charge level indicator.

A feeding stage:

and opening the discharging valve 4 and the exhaust valve 3, closing all other discharging valves and air valves, closing the discharging valve 4 of the replacement kettle 6 when the charge level indicator 5 sends a full discharging alarm signal, keeping the actions of the other valves unchanged, ending the feeding stage of the replacement kettle 6, and switching the system to the reaction stage.

A reaction stage:

the stirring apparatus built in the replacement vessel 6 was started and the stirring timing was started at the same time. When the stirring timing is completed, the stirring device and the exhaust valve 3 are closed, the reaction stage is ended, and the replacement kettle 6 enters a powder conveying stage.

Powder conveying stage:

opening a pressurizing air valve assembly 2, a discharge valve assembly 7, an air knife air valve assembly 8 and a conveying air valve assembly 9, conveying an air source 1 into a replacement kettle 6 after being pressurized by the pressurizing air valve assembly 2, and allowing powder of the replacement kettle 6 to enter a terminal bin 15 through the discharge valve assembly 7, a first three-way material pipe 10, a manual valve 12, a second three-way material pipe 13 and a material conveying pipe 14 in sequence by air flow, wherein at the moment, an emergency discharge valve 11 is in a closed state;

when the output quantity needs to be increased, the pressure boosting air valve component 2 increases the air quantity and improves the rotating speed of the stirring device of the replacement kettle 6 through the feedback signal of the level gauge 5, so that the output quantity of the replacement kettle 6 is increased. The air input of the conveying air valve component 9 is increased, the switching frequency of a pneumatic pulse valve of the air knife air valve component 8 is increased, and stable powder conveying is guaranteed;

when the output quantity needs to be reduced, the booster gas valve assembly 2 reduces or closes the gas quantity and reduces or closes the rotating speed of the stirring device of the replacement kettle 6 through a signal fed back by the level gauge 5, so that the output quantity of the replacement kettle 6 is reduced. At the moment, the air input of the conveying air valve assembly 9 is reduced, the switching frequency of a pneumatic pulse valve of the air knife air valve assembly 8 is reduced, and stable powder conveying is guaranteed.

When the powder is conveyed by the feedback signal of the level indicator 5, all the air inlet valves in the opening state are closed, the discharge valve assembly 7 is closed after 5 seconds of delay, the conveying stage is finished, and the conveying unit enters the next feeding stage.

The air knife air valve assembly 8 cuts the powder in the material conveying pipe 14 into a section of material plug, and the material plug is conveyed to the terminal bin 15 by means of the air pressure difference between the front and the back of the material plug.

When unqualified products need to be treated in an emergency, the manual valve 12 is manually closed, and the emergency discharge valve 11 is opened.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an utilize pneumatic conveyor of polypropylene replacement cauldron as sending jar, includes pressure boost pneumatic valve subassembly (2), air knife pneumatic valve subassembly (8) and transport pneumatic valve subassembly (9) through air supply (1) air feed and parallelly connected setting, its characterized in that: the pressurization gas valve assembly (2) is sequentially connected with a replacement kettle (6), a discharge valve assembly (7), a first three-way material pipe (10), a second three-way material pipe (13) and a terminal bin (15) along the forward direction of the airflow; the remaining discharge hole of the first three-way material pipe (10) is connected with the inlet of the emergency discharge valve (11), the remaining air inlet of the second three-way material pipe (13) is connected with the output end of the conveying air valve assembly (9), and the output end of the air knife air valve assembly (8) is connected between the second three-way material pipe (13) and the terminal bin (15).

2. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: the discharge valve assembly (7) adopts a pneumatic ball valve.

3. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: and a manual valve (12) is arranged between the first three-way material pipe (10) and the second three-way material pipe (13).

4. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: the second three-way material pipe (13) is connected with the terminal bin (15) through a material conveying pipe (14), and the air knife air valve assembly (8) is connected with the starting end of the material conveying pipe (14) through an air pipe.

5. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: the gas delivered by the gas source (1) adopts nitrogen.

6. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: and a stirring device is arranged in the replacement kettle (6).

7. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 6, wherein: an exhaust valve (3), a blanking valve (4) and a level indicator (5) are arranged on the replacement kettle (6).

8. The pneumatic conveying device using the polypropylene substitution tank as the sending tank as claimed in claim 1, wherein: the booster air valve assembly (2) and the conveying air valve assembly (9) are sequentially provided with a self-operated regulating valve, a pneumatic air inlet valve, a manual ball valve and a check valve along the air advancing direction, and the air knife air valve assembly (8) is sequentially provided with a self-operated regulating valve, a pneumatic pulse valve and a check valve along the air advancing direction.