A kind of cleaning system based on negative pressure change automatic cleaning O-Sepa powder concentrator air guide vane accumulated material

Abstract

The utility model relates to powder sorting equipment technical field especially, more particularly to a kind of based on negative pressure change automatic cleaning o-sepa powder concentrator air guide vane material accumulation's removal system, comprising: negative pressure sensor, install at powder concentrator air outlet, for real-time monitoring negative pressure value;Air cannon device, its jet port aims at air guide vane;Control system is electrically connected with the negative pressure sensor and air cannon device respectively;The control system is preset with negative pressure threshold value, when negative pressure sensor detection value continuously exceeds threshold value, trigger air cannon jet high-pressure air pulse to remove air guide vane material accumulation.The utility model degree of automation is high: realize automatic monitoring and cleaning, without manual intervention, improve efficiency, reduce labor intensity;Cleaning effect is good: high-pressure air pulse effectively removes air guide vane material accumulation, guarantees powder concentration efficiency and product quality;Ensure production continuity: without cleaning, ensure production continuous stability;Simple structure, easy to maintain: equipment structure is simple, installation and maintenance are convenient, and cost is low.

Description

Technical Field

[0001] This utility model relates to the field of powder sorting equipment technology, and in particular to a cleaning system for automatically cleaning the material accumulation on the guide vanes of an O-Sepa classifier based on negative pressure changes, which is used to solve the problem that the material accumulation inside the classifier cannot be automatically cleaned during operation. Background Technology

[0002] The O-Sepa air classifier is a crucial piece of equipment in cement production, and the cleanliness of its guide vanes directly impacts classification efficiency and product quality. Currently, cement plants commonly use desulfurized gypsum instead of natural gypsum. However, due to the high moisture content of desulfurized gypsum, excessive moisture in the system during use easily adheres to the O-Sepa air classifier's guide vanes. If not cleaned promptly, this moisture will clog the gaps between the guide vanes, affecting classification efficiency and reducing cement grinding time. Traditional cleaning methods often involve manual shutdown, which is inefficient, labor-intensive, and disrupts production continuity. To address these issues, this invention proposes an automatic cleaning system for the O-Sepa air classifier's guide vanes based on negative pressure changes. Summary of the Invention

[0003] The purpose of this invention is to provide a cleaning system for automatically cleaning the material buildup on the guide vanes of an O-Sepa classifier based on negative pressure changes, thereby achieving automatic cleaning, improving efficiency, reducing labor intensity, and ensuring continuous production.

[0004] Working principle

[0005] During operation of the O-Sepa air classifier, the negative pressure sensor monitors the negative pressure value at the air outlet in real time and transmits it to the control system. When the material accumulation on the guide vanes increases and the negative pressure value at the air outlet rises, exceeding the preset threshold, the control system activates the air cannon device. High-pressure air pulses are injected into the guide vanes to clear the accumulated material, restoring the negative pressure value to normal, and the air cannon device stops working.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a cleaning system for automatically cleaning accumulated material on the guide vanes of an O-Sepa air classifier based on negative pressure changes, comprising an O-Sepa air classifier, an air cannon device, a negative pressure sensor, and a control system. The O-Sepa air classifier includes a housing, a rotor, guide vanes, and an air inlet. The guide vanes are installed inside the air classifier, and the air inlet is located on one side of the housing. The air cannon device is installed on the housing of the O-Sepa air classifier, with the spray direction aimed at the guide vanes. The air cannon device includes a high-pressure air tank, a solenoid valve, and a spray pipeline. The solenoid valve controls the release of high-pressure air, and the spray pipeline guides the high-pressure air to the working surface of the guide vanes, with the spray direction forming a 30-60° angle with the working surface of the guide vanes. The negative pressure sensor is installed at the air outlet of the O-Sepa air classifier, using a differential pressure transmitter. The detection signal is transmitted to the control system via a 4-20mA current for real-time monitoring of the negative pressure value at the air outlet. The control system is electrically connected to the negative pressure sensor and the air cannon device, and includes a PLC controller, a delay module, a manual / automatic switch, and an alarm module. The PLC controller receives signals from the negative pressure sensor and controls the air cannon device. The delay module is used to detect the negative pressure value again after a set time delay following the air cannon's triggering. The manual / automatic switch can forcibly start and stop the air cannon. The alarm module issues a maintenance alarm if the negative pressure value does not return to normal after three consecutive triggerings of the air cannon. The control system has a preset negative pressure threshold and can automatically control the operation of the air cannon device based on the negative pressure value.

[0007] Furthermore, the air cannon device is a high-pressure pulse air cannon with a working pressure of 0.4-0.8 MPa and a pulse interval of 0.1-0.5 seconds. Furthermore, the control system can be set to two air cannon blowing modes: one uses a time relay to set a fixed blowing time; the other uses a preset negative pressure threshold. When the negative pressure value exceeds the threshold, the PLC controller starts the air cannon device to clean until the negative pressure value returns to normal. Beneficial effects

[0008] 1. High degree of automation: It enables automatic monitoring and cleaning without manual intervention, improving efficiency and reducing labor intensity.

[0009] 2. Excellent cleaning effect: High-pressure air pulses effectively remove accumulated material from the guide vanes, ensuring powder selection efficiency and product quality.

[0010] 3. Ensure continuous production: No need to stop for cleaning, ensuring continuous and stable production.

[0011] 4. Simple structure and easy maintenance: The equipment has a simple structure, is easy to install and maintain, and has low cost. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the structure of this utility model. In the figure: 1. O-Sepa classifier; 2. Air cannon device; 3. Negative pressure sensor; 4. Control system; 5. Housing; 6. Rotor; 7. Guide vane; 8. Air outlet. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] As shown in Figure 1, this utility model includes an O-Sepa classifier 1, an air cannon device 2, a negative pressure sensor 3, and a control system 4.

[0015] The O-Sepa air classifier 1 includes: a housing 5; a rotor 6; guide vanes 7; and an air outlet 8. The guide vanes 7 are installed inside the air classifier 1, and the air outlet 8 is located on one side of the housing 5. An air cannon device 2 is installed on the housing 5 and includes a high-pressure air tank, a solenoid valve, and a jetting pipeline. The jetting direction is aligned with the guide vanes 7, forming a 30-60° angle with the working surface of the guide vanes. A negative pressure sensor 3, using a differential pressure transmitter, is installed at the air outlet 8 to monitor the negative pressure value in real time and transmit it to the control system 4 via a 4-20mA current. The control system 4 is electrically connected to the negative pressure sensor 3 and the air cannon device 2, and includes a PLC controller, a delay module, a manual / automatic switch, and an alarm module. The PLC controller receives the signal from the negative pressure sensor 3 and controls the air cannon device 2. The delay module checks the negative pressure value again after a set delay time after the air cannon is triggered. The manual / automatic switch can forcibly start and stop the air cannon. The alarm module issues a warning if the negative pressure value does not return to normal after three consecutive triggers of the air cannon.

[0016] Protect the alarm.

[0017] When the material accumulation on the guide vane 7 increases and the negative pressure value at the air outlet 8 exceeds the preset threshold, the PLC controller starts the air cannon device 2. High-pressure air pulses clear the accumulated material. After the negative pressure value returns to normal, the air cannon device 2 stops working. If the negative pressure still exceeds the standard after one spray, the delay module controls a second spray. If three consecutive sprays are ineffective, the alarm module issues a maintenance alarm.

[0018] This invention uses a negative pressure sensor to monitor the negative pressure value at the outlet of the O-Sepa air classifier in real time, and uses an air cannon device to automatically clean the accumulated material on the guide vanes, thereby achieving automated cleaning, improving efficiency, reducing labor intensity, ensuring production continuity, and having significant economic and social benefits.

Claims

1. A cleaning system for automatically cleaning accumulated material on the guide vanes of an O-SEPA classifier based on negative pressure changes, characterized in that, include: A negative pressure sensor is installed at the air outlet of the air classifier to monitor the negative pressure value in real time. An air cannon device with its nozzle aimed at the air guide vanes; The control system is electrically connected to the negative pressure sensor and the air cannon device, respectively. The control system has a preset negative pressure threshold. When the negative pressure sensor detects a value that continuously exceeds the threshold, it triggers an air cannon to spray high-pressure air pulses to remove the accumulated material from the guide vanes.

2. The automatic cleaning system for the guide vanes of the O-SEPA classifier based on negative pressure change as described in claim 1, characterized in that, The air cannon device includes: High-pressure gas storage tank; Solenoid valve, used to control the release of high-pressure air; The jet pipes guide high-pressure air to the working surface of the guide vanes.

3. The automatic cleaning system for the guide vanes of an O-SEPA classifier based on negative pressure changes, as described in claim 1 or 2, is characterized in that... The control system includes a delay module that detects the negative pressure value again after a set time delay after the air cannon is triggered. If the negative pressure value still exceeds the threshold, a second injection is initiated.

4. The automatic cleaning system for the guide vanes of the O-SEPA classifier based on negative pressure change as described in claim 1, characterized in that, The negative pressure sensor uses a differential pressure transmitter, and its detection signal is transmitted to the control system via a 4-20mA current.

5. The automatic cleaning system for the guide vanes of an O-SEPA classifier based on negative pressure changes, as described in claim 1, is characterized in that... The spray direction of the air cannon device forms an angle of 30-60° with the working surface of the guide vanes.

6. The automatic cleaning system for the guide vanes of an O-SEPA classifier based on negative pressure changes, as described in claim 1, is characterized in that... It also includes an alarm module that issues a maintenance alarm when the negative pressure value fails to return to normal after the air cannon is triggered three times in a row.

7. The automatic cleaning system for the guide vanes of an O-SEPA classifier based on negative pressure changes, as described in claim 1, is characterized in that... The control system is equipped with a manual / automatic switch, which can force the air cannon to start and stop.

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