Dust removal fan

Abstract

The utility model provides a dust removal fan which comprises a fan assembly arranged above a conveying belt and used for collecting dust of materials on the conveying belt. The sensor is used for detecting the running state of the conveying belt; and the frequency converter is connected with the sensor and the fan assembly, and correspondingly controls the power of the fan assembly according to a detection signal of the sensor. The dust removal fan can save energy.

Description

Technical Field

[0001] The present application relates to silo dust removal, and in particular to a dust removal fan. Background Art

[0002] The dust removal fan is mainly used for collecting dust during the production feeding process to reduce unorganized emissions and meet environmental protection requirements. For example, the dust removal blower disclosed in patent application CN113154864A adopts manual operation to control the high and low speed of the fan. The feeding belt needs to run intermittently during production. In order to reasonably control dust during feeding, the fan must be in high-speed state and the air volume is maximized. There is no dust during non-feeding period, and the fan is still in high-speed state, causing the dust removal fan to be in a constant high-speed state during feeding or non-feeding period. The fan operation mode is not changed according to the actual production feeding needs. Even if the fan speed needs to be reduced or increased, manual input control is required. However, due to the small number of personnel in the post, relevant operations are often not performed in time, resulting in waste of electricity consumption during non-feeding period. Summary of the invention

[0003] In view of this, it is necessary to provide a dust removal fan with automatic power adjustment to solve the problem of waste of electric energy.

[0004] A dust removal fan, comprising:

[0005] The fan assembly is installed above the conveyor belt and is used to collect dust from the materials on the conveyor belt;

[0006] A sensor, used for detecting the running state of the conveyor belt;

[0007] A frequency converter is connected to the sensor and the fan assembly, and controls the power of the fan assembly according to the detection signal of the sensor.

[0008] Furthermore, the fan assembly comprises:

[0009] A fan body connected to the frequency converter;

[0010] A dust removal air duct, one end of which is connected to the fan body;

[0011] The air suction hood is connected to the other end of the dust removal air duct and is located above the conveyor belt.

[0012] Furthermore, the dust removal fan also includes:

[0013] A control component is used to actively control the power of the fan assembly.

[0014] Furthermore, the sensor signal is connected to the motor of the conveyor belt to read the operating status of the motor. Beneficial Effects

[0015] This application changes the interlocking control mode of the dust removal fan operation and optimizes the high and low speed states of the fan during feeding to achieve the purpose of energy saving and environmental protection. First, the feeding belt operation signal is fed back, and then the fan operation control mode is optimized to reduce the manual control of the fan, and the high and low speed states of the dust removal fan are automatically interlocked through the belt operation and stop signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic block diagram of a dust removal fan of an embodiment of the utility model. The symbols in the figure represent: 1. belt; 2. motor; 3. feeding PLC; 4. DCS system of dust removal fan; 5. frequency converter; 6. fan; 7. dust removal air duct; 8. air suction hood; 9. control computer; 10. belt operation signal feedback; 11. belt operation signal communication connection; 12. belt speed signal; 13. fan speed adjustment signal; 14. belt operation control; 15. manual speed adjustment. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0018] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0019] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] See also Figure 1 , in the figure: 1, belt; 2, motor; 3, feeding PLC; 4, dust removal fan DCS system; 5, frequency converter; 6, fan; 7, dust removal air duct; 8, air suction hood; 9, control computer; 10, belt operation signal feedback; 11, belt operation signal communication connection; 12, belt speed signal; 13, fan speed adjustment signal; 14, belt operation control; 15, manual speed control adjustment. The utility model embodiment provides a dust removal fan, including:

[0021] The fan assembly is installed above the conveyor belt and is used to collect dust from the materials on the conveyor belt;

[0022] A sensor, used for detecting the running state of the conveyor belt;

[0023] A frequency converter is connected to the sensor and the fan assembly, and controls the power of the fan assembly according to the detection signal of the sensor.

[0024] Furthermore, the fan assembly comprises:

[0025] A fan body connected to the frequency converter;

[0026] A dust removal air duct, one end of which is connected to the fan body;

[0027] The air suction hood is connected to the other end of the dust removal air duct and is located above the conveyor belt.

[0028] The power of the fan assembly is controlled in accordance with the sensor detection signal:

[0029] When the sensor detects that the conveyor belt is in a running state, the frequency converter controls the fan assembly to a high power; when the sensor detects that the conveyor belt is in a stopped state, the frequency converter controls the fan assembly to a low power.

[0030] Furthermore, the dust removal fan also includes:

[0031] A control component is used to actively control the power of the fan assembly.

[0032] Furthermore, the sensor signal is connected to the motor of the conveyor belt to read the operating status of the motor.

[0033] The feeding belt signal is used to interlock the dust removal fan and optimize the control program to meet the automatic high and low speed states of the fan during feeding and non-feeding periods, reduce manual operation, reduce power consumption during non-feeding periods and meet environmental protection requirements.

[0034] In one embodiment, when the belt running feedback signal is present, the fan automatically increases to high speed operation (600r / min 70A), and when the belt stop signal is disconnected, the fan automatically decreases to low speed operation (300r / min 40A), thereby reasonably adjusting the fan operation mode and reducing the consumption of electric energy. Compared with the previous fan constant speed state, the average daily energy consumption is about 9000kwh. By optimizing the automatic high and low speed switching of the dust removal fan, the average daily energy consumption is about 5000kwh, saving about 4000kwh of energy consumption.

[0035] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A dust removal fan, comprising: The fan assembly is installed above the conveyor belt and is used to collect dust from the materials on the conveyor belt; It is characterized by further comprising: A sensor, used for detecting the running state of the conveyor belt; The frequency converter is connected to the sensor and the fan assembly, and controls the power of the fan assembly according to the sensor detection signal; when the sensor detects that the conveyor belt is in a running state, the frequency converter controls the fan assembly to a high power; when the sensor detects that the conveyor belt is in a stopped state, the frequency converter controls the fan assembly to a low power.

2. The dust removal fan according to claim 1, characterized in that: The fan assembly comprises: A fan body connected to the frequency converter; A dust removal air duct, one end of which is connected to the fan body; The air suction hood is connected to the other end of the dust removal air duct and is located above the conveyor belt.

3. The dust removal fan according to claim 1, characterized in that: The dust removal fan also includes: A control component is used to actively control the power of the fan assembly.

4. The dust removal fan according to claim 1, characterized in that: The sensor signal is connected to the motor of the conveyor belt to read the operating status of the motor.

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