Method and equipment for activating tail gas purification device of full-automatic anti-explosion diesel vehicle

Abstract

The invention discloses activation equipment for a tail gas purification device of a full-automatic explosion-proof diesel vehicle and a use method, relates to the technical field of tail gas purification, and aims to prolong the service life and improve the purification efficiency of the tail gas purification device of the explosion-proof diesel vehicle. The full-automatic anti-explosion diesel vehicle tail gas purification device activation equipment comprises an automatic temperature control activation chamber, an oxygen concentration intelligent regulation and control system and a monitoring control system, the tail gas purification device is placed in the activation chamber, a furnace door is closed, a start button is triggered, and the activation chamber is automatically heated in a stepped mode; the activation equipment automatically judges whether the oxygen concentration in the activation chamber is lower than a set threshold value or not in real time, and if the oxygen concentration is lower than the set threshold value, an air blower is automatically started to adjust the oxygen concentration in the activation chamber; and after the activation process is finished, the activation equipment automatically stops temperature control. According to the activation equipment for the tail gas purification device of the full-automatic anti-explosion diesel vehicle, the influence of a soot oxidation reaction on the atmosphere environment is considered, and the intelligent oxygen concentration regulation and control system is designed to realize dynamic regulation of the oxygen concentration in the activation chamber; and meanwhile, a one-key starting key and a stepped automatic heating program are designed, so that the equipment is convenient to use on site, and accurate and efficient to control.

Description

Technical Field

[0001] The invention belongs to the field of catalyst regeneration, and in particular relates to an activation method and equipment for a fully automatic explosion-proof diesel vehicle exhaust purification device. Background Art

[0002] Self-propelled equipment such as explosion-proof trackless rubber-wheeled vehicles are widely used in mine auxiliary transportation systems because of their flexibility and high transportation efficiency. However, after explosion-proof modification, their emission performance is relatively poor, and the exhaust gas contains a variety of harmful substances, such as particulate matter and CO. At present, mines generally use catalytic oxidation exhaust gas purification devices to purify CO gas in exhaust gas. The device uses porous materials as carriers and a catalyst coating is coated on the surface of the carrier to convert CO into harmless CO2. The harsh working environment underground causes a large amount of soot particles in the exhaust gas of explosion-proof diesel vehicles. After a long time, the soot particles adhere to the surface of the catalyst coating, which seriously reduces the CO purification effect of the purification device and has an adverse effect on the engine.

[0003] Currently, high-temperature activation methods are commonly used to remove soot particles, but there are the following problems: currently, muffle furnaces are mainly used to activate exhaust gas purification devices. The oxidation reaction of soot particles consumes a large amount of oxygen during the activation process, and the furnace is relatively closed, gradually forming a low-oxygen environment, resulting in poor activity of the exhaust gas purification device; in addition, the temperature rise program setting is relatively complicated, which increases the difficulty of operation and the possibility of misoperation for miners, making the existing activation technology unable to be directly used in mining areas. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing exhaust gas purification device activation system cannot be used directly in the mining area. This application provides a fully automatic explosion-proof diesel vehicle exhaust purification device activation method and equipment. By designing an intelligent oxygen concentration control system, the oxygen concentration in the activation chamber can be dynamically adjusted, the impact of the carbon smoke oxidation reaction on the atmosphere environment can be reduced, and the efficiency of the activation system can be improved. At the same time, a one-button start button and a step-by-step automatic heating program are designed, so that the equipment is easy to use on site, and the control is accurate and efficient. The purpose of the present invention is achieved through the following technical solutions:

[0005] A fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment, characterized in that it includes: an automatic temperature control activation chamber, an oxygen concentration intelligent control system and a monitoring and control system; wherein the automatic temperature control activation chamber, the oxygen concentration intelligent control system and the monitoring and control system are connected to realize dynamic adjustment of the oxygen concentration in the activation chamber and automatic step-by-step temperature increase; the automatic temperature control activation chamber includes a furnace door, a furnace, a thermocouple, a resistance heating element, a ceramic fiber insulation layer, a metal protective layer and a power plug, and the insulation layer is filled between the heating furnace and the metal protective layer; the oxygen concentration intelligent control system includes an oxygen concentration real-time monitoring module and a blower, and the blower is welded in the air inlet; the monitoring and control system includes a PLC controller, a data acquisition module, a display, a protective shell and a mounting bracket; the data acquisition module is connected to the thermocouple and the oxygen sensor in communication, and the current activation chamber temperature and oxygen concentration are displayed on the display; the PLC controller is connected to the data acquisition module in communication, and the PLC obtains the sensor monitoring data from the data acquisition module and analyzes and processes it, and controls the blower and the resistance heating element according to a preset program to perform program temperature increase; the display is provided with an equipment start / stop electronic button.

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

[0007] Furthermore, the oxygen concentration intelligent control system includes an oxygen concentration real-time monitoring module and a blower, and the blower is welded in the air inlet; the oxygen concentration real-time monitoring module includes a gas collection system and an oxygen sensor; the gas collection system includes an exhaust pipe, a condenser, a particle filter, an air chamber, and a negative pressure exhaust pump, and each component is threadedly sealed; the oxygen sensor and the air chamber are threadedly sealed.

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

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

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

[0011] (1) Place the exhaust gas purification device in the activation chamber, close the furnace door, trigger the start button, and the activation chamber will automatically increase the temperature in steps;

[0012] (2) The activation equipment autonomously determines in real time whether the oxygen concentration in the activation chamber is lower than a 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 completed, the activation equipment automatically stops temperature control.

[0014] The beneficial effects of the present invention are as follows: compared with the currently used muffle furnace activation device, the present activation system has an oxygen concentration adjustment system and a PID intelligent temperature control instrument, and has the functions of automatic adjustment of oxygen concentration and one-button start and stop of step-by-step temperature increase. When in use, the minimum limit of oxygen concentration in the activation furnace can be set according to actual conditions. The present activation system links the oxygen concentration detection module with the blower through a PLC controller, detects the oxygen content in the activation chamber in real time during the activation process, and intelligently determines whether the oxygen concentration meets the requirements of carbon smoke combustion. If the oxygen concentration is lower than the set value, the blower is automatically controlled to fill fresh air into the activation chamber to adjust the oxygen concentration in the activation chamber to avoid a reduction in the activation effect due to insufficient oxygen. In addition, the PID intelligent temperature control instrument used in the present activation system has a program segment storage function and a one-button start and stop function of step-by-step program temperature increase, which can avoid program setting errors during use, and the operation is more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the device of the present invention; DETAILED DESCRIPTION

[0016] In order 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, a fully automatic explosion-proof diesel vehicle exhaust purification device activation device comprises: an automatic temperature control activation chamber, an oxygen concentration intelligent control system and a monitoring control system; wherein the automatic temperature control activation chamber, the oxygen concentration intelligent control system and the monitoring control system are connected to realize dynamic regulation of oxygen concentration in the activation chamber and automatic step-by-step temperature increase; the automatic temperature control activation chamber comprises a furnace door (1), a furnace (2), a thermocouple, a resistance heating element, a ceramic fiber insulation layer, a metal protective layer and a power plug, and the insulation layer is filled between the heating furnace and the metal protective layer; the oxygen concentration intelligent control system comprises an oxygen concentration real-time monitoring module ( 3) with a blower, the blower is welded in 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 the oxygen sensor in communication, and the current activation room temperature and oxygen concentration are displayed on the display; the PLC controller is connected to the data acquisition module in communication, the PLC obtains the sensor monitoring data from the data acquisition module and analyzes and processes it, and controls the blower and the resistance heating element according to a preset program to perform program heating; the display is provided with an equipment start / stop electronic button. The rear side of the automatic temperature control activation chamber is provided with an air inlet (4), an exhaust hole (5) and an exhaust hole (6), the inner diameter of the exhaust hole (6) is less than 10mm, the exhaust hole (6) is connected to a negative pressure exhaust pump (9) through an exhaust pipe (8), and the exhaust rate of the negative pressure exhaust pump (9) is ≤1L / min. The oxygen concentration real-time monitoring module (3) comprises a gas collection system and an oxygen sensor; the gas collection system comprises an exhaust pipe, a condenser, a particle filter, an air chamber, and a negative pressure exhaust pump, and each component is connected by a threaded seal; the oxygen sensor is connected by a threaded seal to the air chamber.

[0018] The living method is:

[0019] (1) placing the exhaust gas purification device into the activation chamber, closing the furnace door, triggering the start button, and the activation chamber automatically rises in temperature in steps. The programmed temperature rise process includes three stages: the first stage: maintaining at 200° C. for 2 hours, the second stage: maintaining at 400° C. for 2 hours, and the third stage: maintaining at 600° C. for 2 hours;

[0020] (2) The activation equipment autonomously determines in real time whether the oxygen concentration in the activation chamber is lower than a 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 completed, the activation equipment automatically stops temperature control.

[0022] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment, characterized in that: include: An automatic temperature-controlled activation chamber, an oxygen concentration intelligent control system and a monitoring and control system; wherein the automatic temperature-controlled activation chamber, the oxygen concentration intelligent control system and the monitoring and control system are connected to realize dynamic adjustment of the oxygen concentration in the activation chamber and automatic step-by-step temperature increase; the automatic temperature-controlled activation chamber comprises 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 plug, and the insulation layer is filled between the heating furnace chamber and the metal protective layer; the oxygen concentration intelligent control system comprises an oxygen concentration real-time monitoring module (3) and a blower, and the blower is welded in the air inlet; the monitoring and control system comprises a PLC controller (7), a data acquisition module, a display, a protective housing and a mounting bracket; the data acquisition module is connected to the thermocouple and the oxygen sensor in communication, and the current activation chamber temperature and oxygen concentration are displayed on the display; the PLC controller is connected to the data acquisition module in communication, and the PLC obtains the sensor monitoring data from the data acquisition module and analyzes and processes it, and controls the blower and the resistance heating element according to a preset program to perform program temperature increase; and an equipment start / stop electronic button is provided on the display.

2. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1 is characterized by: An air inlet (4), an air outlet and an air extraction hole are arranged on the rear side of the automatic temperature control activation chamber.

3. The automatic temperature control activation chamber according to claim 2, characterized in that: The inner diameter of the air extraction hole is less than 10 mm.

4. The oxygen concentration intelligent control system according to claim 2 is characterized in that: The exhaust pipe is connected to the exhaust hole by welding, and the exhaust rate of the negative pressure exhaust pump is ≤1L / min.

5. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1 is characterized by: The oxygen concentration intelligent control system comprises an oxygen concentration real-time monitoring module and a blower, and the blower is welded in the air inlet.

6. The oxygen concentration intelligent control system according to claim 5 is characterized in that: The oxygen concentration real-time monitoring module includes a gas collection system and an oxygen sensor; the gas collection system includes an exhaust pipe, a condenser, a particle filter, an air chamber, and a negative pressure exhaust pump, and each component is threadedly sealed; the oxygen sensor is threadedly sealed to the air chamber.

7. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1 is characterized by: The oxygen concentration threshold is designed to be 10-18%.

8. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1 is characterized by: The programmed temperature rising process includes three stages: the first stage: maintaining at 200° C. for 2 hours, the second stage: maintaining at 400° C. for 2 hours, and the third stage: maintaining at 600° C. for 2 hours.

9. The fully automatic explosion-proof diesel vehicle exhaust purification device activation equipment according to claim 1 is characterized by: The heating rate of the programmed temperature increase is less than 20°C / min.

10. A method for activating a fully automatic explosion-proof diesel vehicle exhaust purification device, characterized in that: The following steps are involved: (1) Place the exhaust gas purification device in the activation chamber, close the furnace door, trigger the start button, and the activation chamber will automatically increase the temperature in steps; (2) The activation equipment autonomously determines in real time whether the oxygen concentration in the activation chamber is lower than a 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; (3) When the activation process is completed, the activation equipment automatically stops temperature control.

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