A fully automatic activation method and equipment for explosion-proof diesel vehicle exhaust purification device

Abstract

This invention discloses a fully automatic activation equipment and method for an explosion-proof diesel vehicle exhaust gas purification device, relating to the field of exhaust gas purification technology, aimed at improving the service life and purification efficiency of explosion-proof diesel vehicle exhaust gas purification devices. The fully automatic activation equipment includes an automatic temperature-controlled activation chamber, an intelligent oxygen concentration control system, and a monitoring and control system. By placing the exhaust gas purification device into the activation chamber, closing the furnace door, and triggering the start button, the activation chamber automatically and gradually heats up. The activation equipment autonomously determines in real time whether the oxygen concentration in the activation chamber is below a set threshold. If the oxygen concentration is below the set threshold, the blower automatically starts to adjust the oxygen concentration in the activation chamber. At the end of the activation process, the activation equipment automatically stops temperature control. Considering the impact of carbon soot oxidation on the atmospheric environment, the fully automatic activation equipment for an explosion-proof diesel vehicle exhaust gas purification device provided by this invention designs an intelligent oxygen concentration control system to dynamically adjust the oxygen concentration in the activation chamber. It also features a one-button start and a stepped automatic heating program, making the equipment convenient to use on-site, accurate, and efficient.

Description

Technical Field

[0001] This invention belongs to the field of catalyst regeneration, specifically relating to a fully automatic method and equipment for activating an explosion-proof diesel vehicle exhaust purification device. Background Technology

[0002] Explosion-proof trackless rubber-tired vehicles and other self-propelled equipment are widely used in mine auxiliary transportation systems due to their high flexibility and transportation efficiency. However, after explosion-proof modifications, their emission performance is relatively poor, and the exhaust gas contains various harmful substances, such as particulate matter and CO. Currently, mines commonly use catalytic oxidation exhaust gas purification devices to purify CO gas in the exhaust gas. This device uses porous materials as a carrier, and a catalyst coating is applied to the surface of the carrier. The catalyst coating converts CO into harmless CO2. The harsh underground working environment results in a large amount of carbon soot particles in the exhaust gas of explosion-proof diesel vehicles. Over time, these carbon soot particles adhere to the surface of the catalyst coating, severely reducing the CO purification effect of the purification device and adversely affecting the engine.

[0003] Currently, high-temperature activation is commonly used to remove carbon soot particles, but this method has the following problems: Currently, muffle furnaces are mainly used to activate tail gas purification devices. During the activation process, the oxidation reaction of carbon soot particles consumes a large amount of oxygen, and the furnace is relatively closed, gradually forming a low-oxygen environment, resulting in poor activation effect of the tail gas purification device; In addition, the heating program is relatively complex, which increases the difficulty of operation for miners and the possibility of misoperation, making it impossible for existing activation technology to be used directly in mining areas. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing exhaust gas purification device activation systems cannot be directly used in mining areas. This application provides a fully automatic activation method and equipment for explosion-proof diesel vehicle exhaust gas purification devices. By designing an intelligent oxygen concentration control system, the oxygen concentration in the activation chamber is dynamically adjusted, reducing the impact of carbon soot oxidation on the atmospheric environment and improving the efficiency of the activation system. Simultaneously, a one-button start and a stepped automatic heating program are designed, making the equipment convenient to use on-site, accurate, and efficient. The objective of this invention is achieved through the following technical solutions:

[0005] An activation device for a fully automatic explosion-proof diesel vehicle exhaust purification system is characterized by comprising: an automatic temperature-controlled activation chamber, an intelligent oxygen concentration regulation system, and a monitoring and control system. The automatic temperature-controlled activation chamber, the intelligent oxygen concentration regulation system, and the monitoring and control system are connected, enabling dynamic adjustment of the oxygen concentration and automatic stepped heating within the activation chamber. The automatic temperature-controlled activation chamber includes a furnace door, a furnace chamber, thermocouples, resistance heating elements, a ceramic fiber insulation layer, a metal protective layer, and a power cord. The insulation layer fills the space between the heating furnace chamber and the metal protective layer. The intelligent oxygen concentration regulation system includes a real-time oxygen concentration monitoring module and a blower, with the blower welded into the air inlet. The monitoring and control system includes a PLC controller, a data acquisition module, a display, a protective housing, and a mounting bracket. The data acquisition module is communicatively connected to the thermocouples and oxygen sensors. The display shows the current temperature and oxygen concentration within the activation chamber. The PLC controller is communicatively connected to the data acquisition module, acquiring and analyzing sensor monitoring data from the data acquisition module, and controlling the blower and resistance heating elements according to a preset program for programmed heating. The display is equipped with an electronic start / stop button.

[0006] Furthermore, the rear side of the automatic temperature-controlled activation chamber is provided with an air inlet, an exhaust outlet, and an air extraction outlet. The inner diameter of the air extraction outlet is less than 10mm, and the air extraction pipe is welded to the air extraction outlet. The air extraction rate of the negative pressure air pump is ≤1L / min.

[0007] Furthermore, the intelligent oxygen concentration control system includes a real-time oxygen concentration monitoring module and a blower, with the blower welded inside the air inlet; the real-time oxygen concentration monitoring module includes a gas acquisition system and an oxygen sensor; the gas acquisition system includes an extraction pipe, a condenser, a particulate filter, a gas chamber, and a negative pressure extraction pump, with each component connected by a threaded seal; the oxygen sensor is connected by a threaded seal to the gas chamber.

[0008] Furthermore, the oxygen concentration threshold is designed to be 10-18%.

[0009] Furthermore, the programmed temperature rise process includes three stages: the first stage: holding at 200°C for 2 hours, the second stage: holding at 400°C for 2 hours, and the third stage: holding at 600°C for 2 hours; the temperature rise rate of the programmed temperature rise is less than 20°C / min.

[0010] Furthermore, this application also discloses an activation method for a fully automatic explosion-proof diesel vehicle exhaust purification device, characterized by comprising the following steps:

[0011] (1) Place the exhaust gas purification device into the activation chamber, close the furnace door, trigger the start button, and the activation chamber will automatically heat up in stages;

[0012] (2) The activation equipment automatically determines in real time whether the oxygen concentration in the activation chamber is lower than the set threshold; if the oxygen concentration is lower than the set threshold, the blower automatically turns on to adjust the oxygen concentration in the activation chamber.

[0013] (3) When the activation process is over, the activation equipment will automatically stop temperature control.

[0014] The beneficial effects of this invention are as follows: Compared with the currently used muffle furnace activation devices, this activation system has an oxygen concentration regulation system and a PID intelligent temperature controller, featuring automatic oxygen concentration adjustment and a one-button start / stop function for stepped heating. During use, the minimum oxygen concentration limit inside the activation furnace can be set according to actual conditions. This activation system links the oxygen concentration detection module with the blower via a PLC controller, monitoring the oxygen content in the activation chamber in real time during activation and intelligently determining whether the oxygen concentration meets the requirements for soot combustion. If the oxygen concentration is lower than the set value, the blower is automatically controlled to inject fresh air into the activation chamber, adjusting the oxygen concentration and preventing a reduction in activation effect due to insufficient oxygen. Furthermore, the PID intelligent temperature controller used in this activation system has a program segment storage function and a one-button start / stop function for stepped program heating, avoiding program setting errors and making operation more convenient and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the device of the present invention; Detailed Implementation

[0016] To better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0017] like Figure 1As shown, the fully automatic explosion-proof diesel vehicle exhaust purification device activation device includes: an automatic temperature-controlled activation chamber, an intelligent oxygen concentration control system, and a monitoring and control system; wherein, the automatic temperature-controlled activation chamber, the intelligent oxygen concentration control system, and the monitoring and control system are connected to realize dynamic adjustment of oxygen concentration and automatic step heating in the activation chamber; the automatic temperature-controlled activation chamber includes a furnace door (1), a furnace chamber (2), a thermocouple, a resistance heating element, a ceramic fiber insulation layer, a metal protective layer, and a power cord, with the insulation layer filling between the heating furnace chamber and the metal protective layer; the intelligent oxygen concentration control system includes an oxygen concentration real-time monitoring module ( 3) The blower is welded to the air inlet (4); the monitoring and control system includes a PLC controller (7), a data acquisition module, a display, a protective shell and a mounting bracket; the data acquisition module is connected to the thermocouple and oxygen sensor, and the display shows the current temperature and oxygen concentration in the activation chamber; the PLC controller is connected to the data acquisition module, the PLC obtains sensor monitoring data from the data acquisition module and analyzes and processes it, and controls the blower and resistance heating element according to the preset program to perform programmed heating; the display is equipped with an electronic start / stop button. The rear side of the automatic temperature-controlled activation chamber is provided with an air inlet (4), an exhaust port (5) and an air extraction port (6), the inner diameter of the air extraction port (6) is less than 10mm, the air extraction port (6) is connected to the negative pressure air extraction pump (9) through the air extraction pipe (8), and the air extraction rate of the negative pressure air extraction pump (9) is ≤1L / min. The real-time oxygen concentration monitoring module (3) includes a gas acquisition system and an oxygen sensor; the gas acquisition system includes a suction pipe, a condenser, a particle filter, a gas chamber, and a negative pressure suction pump, with threaded seal connections between the components; the oxygen sensor and the gas chamber are connected by a threaded seal.

[0018] The living method is as follows:

[0019] (1) Place the exhaust gas purification device into the activation chamber, close the furnace door, trigger the start button, and the activation chamber will automatically increase the temperature in stages. The program heating process includes three stages: the first stage: 200℃ for 2 hours, the second stage: 400℃ for 2 hours, and the third stage: 600℃ for 2 hours.

[0020] (2) The activation equipment automatically determines in real time whether the oxygen concentration in the activation chamber is lower than the set threshold; if the oxygen concentration is lower than the set threshold, the blower automatically turns on to adjust the oxygen concentration in the activation chamber.

[0021] (3) When the activation process is over, the activation equipment will automatically stop temperature control.

[0022] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An activation device for a fully automatic explosion-proof diesel vehicle exhaust purification system, characterized in that, include: The system comprises an automatic temperature-controlled activation chamber, an intelligent oxygen concentration regulation system, and a monitoring and control system. The automatic temperature-controlled activation chamber, intelligent oxygen concentration regulation system, and monitoring and control system are connected to achieve dynamic adjustment of the oxygen concentration and automatic step-by-step heating within the automatic temperature-controlled activation chamber. The automatic temperature-controlled activation chamber includes a furnace door, a heating furnace chamber, thermocouples, resistance heating elements, a ceramic fiber insulation layer, a metal protective layer, and a power cord. The rear side of the automatic temperature-controlled activation chamber has an air inlet, an exhaust outlet, and an exhaust vent. The ceramic fiber insulation layer fills the space between the heating furnace chamber and the metal protective layer. The intelligent oxygen concentration regulation system includes a real-time oxygen concentration monitoring module and a blower. Further, the real-time oxygen concentration monitoring module includes a gas acquisition system and an oxygen sensor. The blower is welded into the air inlet. The monitoring and control system includes a PLC controller, a data acquisition module, a display, a protective housing, and a mounting bracket. The data acquisition module is communicatively connected to the thermocouples and oxygen sensor. The display shows the current temperature and oxygen concentration within the activation chamber. The PLC controller is communicatively connected to the data acquisition module. The controller acquires and analyzes sensor monitoring data from the data acquisition module, and controls the blower and resistance heating element according to a preset program to perform programmed temperature increase; the display is equipped with an electronic start / stop button. The exhaust gas purification device uses a porous material as a carrier and coats the carrier surface with a catalyst coating, which converts CO into harmless CO2. The gas collection system includes an extraction pipe, a condenser, a particulate filter, a gas chamber, and a negative pressure extraction pump, with threaded seals connecting all components. The oxygen sensor is threaded and sealed to the gas chamber. The oxygen concentration threshold is designed to be 10-18%. The programmed temperature rise process includes three stages: stage 1: 200℃ held for 2 hours; stage 2: 400℃ held for 2 hours; stage 3: 600℃ held for 2 hours. The temperature rise rate of the programmed temperature rise is less than 20℃ / min.

2. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1, characterized in that: The inner diameter of the air extraction hole is less than 10 mm.

3. The activation equipment for the fully automatic explosion-proof diesel vehicle exhaust purification device according to claim 1, characterized in that: The suction pipe is welded to the suction port, and the negative pressure suction pump has a suction rate of 1L / min.

4. A method for activating a fully automatic explosion-proof diesel vehicle exhaust purification device, using the fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment described in any one of claims 1-3, characterized in that, The process includes the following steps: (1) Place the exhaust gas purification device into the automatic temperature-controlled activation chamber, close the furnace door, trigger the start button, and the automatic temperature-controlled activation chamber automatically increases the temperature in stages; (2) The activation equipment automatically judges in real time whether the oxygen concentration in the automatic temperature-controlled activation chamber is lower than the set threshold; if the oxygen concentration is lower than the set threshold, the blower automatically starts to adjust the oxygen concentration in the automatic temperature-controlled activation chamber; (3) When the activation process ends, the activation equipment automatically stops temperature control.

Images