CN220684069U

CN220684069U - Take air heating device's easy damp powder material feeding system

Info

Publication number: CN220684069U
Application number: CN202322160154.4U
Authority: CN
Inventors: 邹思敏; 杨守联; 李冰; 肖秀梅
Original assignee: Shanghai Qinshi Environmental Protection Technology Co ltd
Current assignee: Shanghai Qinshi Environmental Protection Technology Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-29
Anticipated expiration: 2033-08-11

Abstract

The utility model relates to the technical field of moisture-sensitive powder feeding, and provides a moisture-sensitive powder feeding system with an air heating device. The utility model reduces the water content of the moisture-sensitive powder in the rear end pipeline and improves the problem of pipeline blockage.

Description

Take air heating device's easy damp powder material feeding system

Technical Field

The utility model relates to the technical field of moisture-sensitive powder feeding, in particular to a moisture-sensitive powder feeding system with an air heating device.

Background

In the powder feeding system in the prior art, a weighing mechanism is generally arranged below a storage bin and connected with a PLC controller, and the powder feeding flow is controlled in real time. The powder enters the venturi tube vertically from top to bottom after being weighed, and enters the rear end pipeline under the blowing of the Roots blower at the front end of the venturi tube. Because the characteristics of the materials are different, the materials are easy to be wet or strong in water absorption, the materials are easy to be condensed into blocks after being contacted with moisture in the air when conveyed at normal temperature, and the blocks are attached to the inner walls of equipment and pipelines, so that the equipment blanking is unsmooth or the pipelines are hardened and blocked, and the like, so that a weighing blanking system cannot normally operate, on the other hand, manual cleaning is difficult, and the cleaning frequency of the conventional blanking system is one time a week.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the moisture-sensitive powder feeding system with the air heating device, which reduces the moisture content of the moisture-sensitive powder in a conveying pipeline so as to improve the pipeline blockage problem caused by hardening, prolongs the cleaning period, lightens the working difficulty and reduces the labor cost, thereby solving the problems in the prior art.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows: the utility model provides a take air heating device's easy damp powder material feeding system, includes storage silo, screw conveyer, the homogeneity motor of weighing, the conveying motor of weighing, weighing module, roots's fan, venturi and rear end pipeline increase one set of air heating device in the middle of roots's fan and the venturi, air heating device is air heater, the venturi is kept away from air heater's one end and is had the rear end pipeline through flange joint.

Preferably, a screw conveyor is arranged at the bottom of the storage bin.

Preferably, the bottom of the screw conveyor is provided with a feeding pneumatic butterfly valve, and the bottom of the feeding pneumatic butterfly valve is communicated with a cavity below through a connecting hose.

Preferably, a weighing homogenizing motor is installed in the cavity in a penetrating manner.

Preferably, a weighing and conveying motor is arranged at one side of the bottom of the weighing and homogenizing motor.

Preferably, a weighing module is arranged at the bottom of the weighing and conveying motor.

Preferably, the output pipeline end of the weighing conveyer motor is aligned with the venturi tube.

The beneficial effects of the utility model are as follows:

1. the water content of the moisture-sensitive powder in the rear-end pipeline is reduced, and the problem of pipeline blockage is solved;

2. the manual cleaning period in the running process can be obviously prolonged, and the cleaning frequency is changed from once a week to once three weeks;

3. the labor cost is reduced, the workload is lightened, and the operation difficulty is reduced;

4. prolonging the service life of the equipment, saving energy, reducing consumption, reducing cost and enhancing efficiency.

Drawings

In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

reference numerals illustrate:

1. a storage bin; 2. a screw conveyor; 3. a feeding pneumatic butterfly valve; 4. weighing and homogenizing the motor; 5. a weighing and conveying motor; 6. a weighing module; 7. roots blower; 8. an air heater; 9. a venturi tube; 10. a rear end conduit; 11. and connecting a hose.

Detailed Description

The present utility model will now be described in further detail with reference to the drawings and examples, wherein it is apparent that the examples described are only some, but not all, of the examples of the utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without inventive effort are within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, and rear … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed by the utility model.

Examples

Referring to the attached figure 1 of the specification, the utility model provides a moisture-sensitive powder feeding system with an air heating device, which mainly comprises a feeding mechanism, a weighing mechanism and a heating conveying mechanism. The feeding mechanism comprises a storage bin 1, a double-shaft screw conveyor 2 and a feeding pneumatic butterfly valve 3; the weighing mechanism comprises a weighing homogenizing motor 4, a weighing conveying motor 5 and a weighing module 6; the heating and conveying mechanism comprises a Roots blower 7, an air heater 8, a venturi tube 9 and a rear end pipeline 10.

Wherein, store the storage silo 1 bottom of powder and be provided with screw conveyer 2, carry into weighing machine and construct with the powder, screw conveyer 2 installs feeding pneumatic butterfly valve 3 in the bottom, through valve switch control feed state, feeding pneumatic butterfly valve 3 bottom is through coupling hose 11 and the cavity intercommunication of below, run through in the cavity and install the homogeneity motor 4 of weighing, stir the powder, prevent its caking, the bottom of homogeneity motor 4 of weighing is provided with the conveyer motor 5 of weighing, the bottom of conveyer motor 5 of weighing is provided with weighing module 6, weigh the powder in real time, the output pipeline end of conveyer motor 5 of weighing aims at venturi 9, carry into venturi 9 with the powder.

The Roots blower 7 blows the powder through blowing to assist in conveying, a set of air heating device is additionally arranged between the Roots blower 7 and the venturi tube 9, the air heating device is an air heater 8, and the powder is dried to reduce hardening phenomenon. And the Roots blower 7 is heated to a set temperature by an air heater 8, hot air is blown to a venturi tube 9 after the moisture content in the air is reduced, and the powder falls down and is mixed with the venturi tube for drying. The venturi tube 9 increases the flow rate of the powder by reducing, and forms negative pressure to assist the powder to be conveyed into the rear end pipeline 10.

Wherein, back end pipeline 10 is in venturi 9 one end that keeps away from air heater 8, passes through flange joint with venturi 9, lets in other systems.

When the feeding device is used, the feeding process is accurately controlled by a set of PLC controllers, the PLC controllers are connected with the feeding pneumatic butterfly valve and the weighing mechanism, a low threshold value and a high threshold value are preset in the PLC controllers, and when the data detected by the weighing mechanism is lower than the low threshold value, the PLC controllers control the feeding valves and the corresponding screw conveyors to be opened; when the data detected by the weighing system is higher than a high threshold value, the PLC controls the feeding valve and the corresponding screw conveyor to be closed, so that the accuracy and the rapidness of powder feeding are realized. In the weighing mechanism, the homogenizing motor stirs the powder to prevent the powder from caking; the conveying motor discharges powder into the venturi tube, and the discharge flow is adjusted by adjusting the frequency of the conveying motor; the weighing module weighs the powder in the symmetrical weighing mechanism bin in real time and feeds signals back to the PLC. After entering the venturi tube, the powder is conveyed into a rear end pipeline under the action of negative pressure, and simultaneously the Roots blower and the air heater at the front end perform blast heating on the powder. The moisture-sensitive powder fully contacts with hot air in the conveying process, the water content of the moisture-sensitive powder is reduced, and the hardening and blocking phenomena in the pipeline are obviously reduced. The temperature of the air heater can be regulated by the PLC controller, and the temperature of the air outlet of the air heater can be monitored in real time.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. Take air heater's easy damp powder material feeding system, a serial communication port, including storage silo (1), screw conveyer (2), homogeneity motor (4) of weighing, weighing conveyer motor (5), weighing module (6), roots's fan (7), venturi (9) and rear end pipeline (10) increase one set of air heater in the middle of roots's fan (7) and venturi (9), air heater is air heater (8), the one end that air heater (8) were kept away from to venturi (9) is through flange joint has rear end pipeline (10).

2. The moisture-sensitive powder feeding system with the air heating device according to claim 1, wherein a screw conveyor (2) is arranged at the bottom of the storage bin (1).

3. The moisture-sensitive powder feeding system with the air heating device according to claim 2, wherein a feeding pneumatic butterfly valve (3) is arranged at the bottom of the screw conveyor (2), and the bottom of the feeding pneumatic butterfly valve (3) is communicated with a cavity below through a connecting hose (11).

4. A moisture-sensitive powder feeding system with an air heating device according to claim 3, characterized in that a weighing and homogenizing motor (4) is installed in the cavity.

5. The moisture-sensitive powder feeding system with the air heating device according to claim 4, wherein a weighing and conveying motor (5) is arranged on one side of the bottom of the weighing and homogenizing motor (4).

6. The moisture-sensitive powder feeding system with the air heating device according to claim 5, wherein a weighing module (6) is arranged at the bottom of the weighing and conveying motor (5).

7. The moisture-sensitive powder feeding system with air heating device according to claim 6, wherein the output pipe end of the weighing and transporting motor (5) is aligned with the venturi tube (9).