CN219602203U

CN219602203U - Material level false alarm device and feed bin system comprising same

Info

Publication number: CN219602203U
Application number: CN202223281514.8U
Authority: CN
Inventors: 胡青勇
Original assignee: Anhui Guofeng New Material Co ltd
Current assignee: Anhui Guofeng New Material Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-08-29
Anticipated expiration: 2032-12-07

Abstract

The material level false alarm device comprises a blower and a blowing pipeline, wherein the blowing pipeline is ventilated and aligned to the detection end surface of a sensor; the air blowing pipeline is provided with an electromagnetic valve, a controlled end of the electromagnetic valve is connected with a control circuit, and the control circuit comprises a time relay J1 for controlling the blowing time, an interval time relay J2 for controlling the blowing interval time, a first normally-closed node J1-1 and a second normally-closed node J1-2 corresponding to the relay J1, a normally-open node J2-1 corresponding to the relay J2 and a power supply module; the positive electrode of the power supply is connected with the negative electrode of the power supply through a normally open joint J2-1, a first normally closed joint J1-1 and an electromagnetic valve which are connected in series; the coil of the relay J1 is connected in parallel with the two ends of the electromagnetic valve; the positive pole of the power supply is connected with the negative pole of the power supply through coils of a normally closed joint J1-2 and a relay J2 which are connected in series. The utility model has low cost and simple structure, and basically avoids the shutdown of the production line caused by false alarm of the high and low material level sensor.

Description

Material level false alarm device and feed bin system comprising same

Technical Field

The utility model belongs to the technical field of alarm devices, and particularly relates to a material level false alarm device and a material bin system comprising the same.

Background

The raw material bin of the film production line is generally provided with a high-level sensor, a low-level sensor, a blanking turning plate and a rotary valve blanking system, when the blanking system works, and when the material level in the bin is reduced to a low level, the feeding system starts feeding until the material level is at the high level, and the system stops feeding and continuously and circularly reciprocates. But the following disadvantages exist during the operation of the system. The granular raw materials used in the film production line are inevitably provided with some powder, and the granular raw materials are attached to the end surfaces of the high and low material level sensors in the use process, so that the material level false alarm can be caused when the amount of adsorbed powder is more for a long time. When the high material level is alarmed, the interlocking is started, and the material cannot be fed into the bin any more; when the end face of the low-level sensor is attached with excessive powder, the material level is not operated when the material level is low, and the material of the storage bin is broken, so that the production line is stopped in a jumping manner, and normal production is affected.

Disclosure of Invention

In order to realize the control of false alarm of the storage bin, the utility model provides a material level false alarm device and a storage bin system comprising the device, and the specific scheme is as follows:

the material level false alarm device comprises a blower and a blowing pipeline, wherein the blowing pipeline is ventilated and aligned to the detection end surface of a sensor;

the air blowing pipeline is provided with an electromagnetic valve, a controlled end of the electromagnetic valve is connected with a control circuit, and the control circuit comprises a time relay J1 for controlling the blowing time, an interval time relay J2 for controlling the blowing interval time, a first normally-closed node J1-1 and a second normally-closed node J1-2 corresponding to the relay J1, a normally-open node J2-1 corresponding to the relay J2 and a power supply module;

the positive electrode of the power supply is connected with the negative electrode of the power supply through a normally open joint J2-1, a first normally closed joint J1-1 and an electromagnetic valve which are connected in series; the coil of the relay J1 is connected in parallel with the two ends of the electromagnetic valve;

the positive pole of the power supply is connected with the negative pole of the power supply through the coils of the second normally closed joint J1-2 and the relay J2 which are connected in series.

Specifically, the power supply is 24V.

Specifically speaking, the outlet of the blowing pipeline comprises a plurality of branch pipelines, and the output ports of the branch pipelines are aligned to the detection end surfaces of corresponding sensors in the raw material bin.

Specifically, the sensor at least comprises a high material level sensor near the top of the raw material bin and a low material level sensor at a warning low position.

Including foretell feed bin system of material level false alarm device, still include former feed bin, set up the charging pipe in former feed bin top, the lower end connection of former feed bin has the unloading pipe, be provided with the unloading between lower end and the unloading pipe and turn over the board, be provided with the rotatory unloading control assembly that is used for controlling unloading speed on the unloading pipe, different material level departments are provided with a plurality of sensors on the former feed bin inner wall.

Specifically, the power supply is the power supply in the rotary valve unloading subassembly in the feed bin system.

The utility model has the beneficial effects that: the device has low cost and simple structure, and basically avoids the shutdown of the production line caused by false alarm of the high and low material level sensors.

Drawings

Fig. 1 is a schematic diagram of a control circuit of a false alarm device.

Fig. 2 is a block diagram of a bin system including a false alarm device.

1. A feeding tube; 2. a raw material bin; 3. a blanking turning plate; 4. discharging pipes; 5. a rotary valve blanking assembly; 6. a high level sensor; 7. a low level sensor; 8. a blowing pipe; 9. an electromagnetic valve; 10. and a control circuit.

Detailed Description

As shown in FIG. 1, a material level false alarm device and a material bin system comprising the same comprise a blower and a blowing pipeline 8, wherein an outlet of the blowing pipeline 8 comprises a plurality of branch pipelines, and output ports of the plurality of branch pipelines are aligned with detection end faces of corresponding sensors in a raw material bin 2, so that materials on the sensors are cleaned.

The air blowing pipeline 8 is provided with an electromagnetic valve 9, a controlled end of the electromagnetic valve 9 is connected with a control circuit 10, and the control circuit 10 comprises a time relay J1 for controlling the blowing time, an interval time relay J2 for controlling the blowing interval time, a first normally-closed node J1-1 and a second normally-closed node J1-2 corresponding to the relay J1, a normally-open node J2-1 corresponding to the relay J2 and a power supply module;

the positive electrode of the power supply is connected with the negative electrode of the power supply through a normally open joint J2-1, a first normally closed joint J1-1 and an electromagnetic valve 9 which are connected in series; the coil of the relay J1 is connected in parallel with the two ends of the electromagnetic valve 9;

the positive pole of the power supply is connected with the negative pole of the power supply through coils of a normally closed joint J1-2 and a relay J2 which are connected in series. The power supply is 24V. The power supply is a power supply in a rotary valve blanking assembly 5 in a bin system.

The utility model sets the time of the purging interval to be 5 minutes, the duration of the purging to be 5s, and the working principle is as follows:

when the rotary valve blanking assembly 5 works, the coil of the relay J2 is electrically grounded, so that the normally open joint J2-1 is controlled to be closed, the relay J1 is electrically grounded and the electromagnetic valve 9 works, the blowing pipeline 8 forms a passage 5S, then the relay J1 controls the first normally closed joint J1-1 and the second normally closed joint J1-2 to be disconnected, finally the passage of the electromagnetic valve 9 is disconnected, and the work is repeated after five minutes.

As shown in fig. 2, a bin system comprising the false alarm device comprises a raw material bin 2 and a feeding pipe 1 arranged above the raw material bin 2, wherein a blanking pipe 4 is connected to the lower end part of the raw material bin 2, a blanking turning plate 3 is arranged between the lower end part and the blanking pipe 4, a rotary blanking control component for controlling the blanking speed is arranged on the blanking pipe 4, a plurality of sensors are arranged at different material positions on the inner wall of the raw material bin 2, and the feed bin system at least comprises a high material position sensor 6 close to the top of the raw material bin 2 and a low material position sensor 7 positioned at a warning low position.

In the utility model, the action of the electromagnetic valve 9 is controlled by the rotary valve blanking assembly 5, and three processes are realized through the control of two time relays: firstly, when the blanking system of the raw material bin 2 stops working, the purging device does not act; secondly, the purge duration is controlled; third, the purge interval time is also controlled.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The material level false alarm device is characterized by comprising a blower and a blowing pipeline (8), wherein the blowing pipeline (8) is ventilated to the detection end surface of a sensor;

the blowing pipeline (8) is provided with an electromagnetic valve (9), a controlled end of the electromagnetic valve (9) is connected with a control circuit (10), the control circuit (10) comprises a time relay (J1) for controlling blowing time, an interval time relay (J2) for controlling blowing interval time, a first normally closed node (J1-1) and a second normally closed node (J1-2) corresponding to the time relay (J1), a normally open node (J2-1) corresponding to the interval time relay (J2) and a power module;

the positive electrode of the power supply is connected with the negative electrode of the power supply through a normally open node (J2-1), a first normally closed node (J1-1) and an electromagnetic valve (9) which are connected in series; the coils of the time relay (J1) are connected in parallel with the two ends of the electromagnetic valve (9);

the positive pole of the power supply is connected with the negative pole of the power supply through the coils of the second normally closed joint (J1-2) and the interval time relay (J2) which are connected in series.

2. The level false alarm device of claim 1 wherein the power source is 24V.

3. The material level false alarm device according to claim 1, wherein the outlet of the air blowing pipeline (8) comprises a plurality of branch pipelines, and output ports of the plurality of branch pipelines are aligned with detection end faces of corresponding sensors in the raw material bin (2).

4. A level false alarm device according to claim 3, characterized in that the sensors comprise at least a high level sensor (6) near the top of the raw stock bin (2) and a low level sensor (7) at a low level of warning.

5. The bin system comprising the material level false alarm device according to any one of claims 1-4 is characterized by further comprising a raw material bin (2) and a feeding pipe (1) arranged above the raw material bin (2), wherein a blanking pipe (4) is connected to the lower end part of the raw material bin (2), a blanking turning plate (3) is arranged between the lower end part and the blanking pipe (4), a rotary blanking control assembly for controlling the blanking speed is arranged on the blanking pipe (4), and a plurality of sensors are arranged at different material level positions on the inner wall of the raw material bin (2).

6. The silo system of claim 5, wherein the power source is a power source in a rotary valve blanking assembly (5) in the silo system.