CN206511662U - Thick and thin phase burner plugging handling system - Google Patents

Abstract

The utility model relates to a blockage treatment system for dense-phase pneumatic conveying, which includes a main pipeline for material transportation, a main ventilation pipe connected to the starting end of the main pipeline for material delivery, and a bypass ventilation pipe arranged parallel to the main pipeline. A plurality of pneumatic stop valves are installed at equal intervals on the bypass air pipe, and a plurality of air boosters are installed on the bypass air pipe where two adjacent pneumatic stop valves are located. The other end of the air booster is connected to the The main pipeline is connected, and a plurality of pressure sensors for detecting the pressure of the main pipeline are installed at equal intervals on the top of the main pipeline, and the pressure sensors are connected with the pneumatic shut-off valve through an automatic control system. To solve the problem of pipeline blockage during pneumatic conveying.

Description

Dense Phase Pneumatic Conveying Blockage Treatment System

technical field

The utility model belongs to the technical field of pipeline blockage treatment, in particular to a blockage treatment system for dense-phase pneumatic conveying.

Background technique

Pneumatic conveying is an advanced conveying technology, which is widely used in real life, has achieved good technical development, and is gradually becoming mature. Among them, the dense-phase pneumatic conveying technology has many advantages such as small gas volume, large conveying capacity, long conveying distance, and low cost, and has been widely promoted in many industries. A certain accumulation of sediment is the main cause of pipeline blockage and directly affects the normal operation of pneumatic conveying. Since the ash conveying pipeline is overhead and the pipeline is long during the transportation process, it is difficult to overhaul and repair it. The traditional method is to shut down the ash conveying pipeline and manually connect compressed air to restore the smooth flow of the pipeline. This processing process is not only cumbersome and labor-intensive, but also takes a long time and affects production efficiency. Therefore, it is very necessary to solve the problem of pipeline blockage without affecting the normal operation of the transportation work.

Utility model content

The problem to be solved by the utility model is to adopt a dense-phase pneumatic conveying blockage treatment system to solve the problem of pipeline blockage in the process of pneumatic conveying.

In order to solve the above-mentioned technical problems, the utility model proposes the following technical solutions: a dense-phase pneumatic conveying blockage treatment system, which includes a main pipeline for material transportation, and a main ventilation pipe is connected to the starting end of the main pipeline for material delivery, and is connected with the main pipeline. The pipelines are arranged in parallel with bypass air pipes, and multiple pneumatic shut-off valves are installed at equal intervals on the bypass air pipes, and multiple air boosters are installed on the bypass air pipes where the two adjacent pneumatic shut-off valves are located. The other end of the air booster communicates with the main pipeline, and a plurality of pressure sensors for detecting the pressure of the main pipeline are installed at equal intervals on the top of the main pipeline, and the pressure sensor and the pneumatic shut-off valve are connected by an automatic control system connected.

The automatic control system includes a pressure signal collector, the pressure signal collector is connected to the pressure sensor through a pressure data transmission line and collects the pressure signal at the corresponding position of the main pipeline, and the pressure signal collector is connected to the signal input of the controller through the signal line The signal output terminal of the controller is connected with the pneumatic shut-off valve through the control line.

The pressure sensor is a contact pressure sensor.

The utility model has the following beneficial effects:

The dense-phase pneumatic conveying blockage treatment system can accurately detect the location of the blockage during the normal transportation of the pipeline, and through automatic control, the compressed air of the bypass air pipe is delivered to the blockage, effectively and quickly dredging the pipeline. The utility model gets rid of the complex operation process of manual dismantling and dredging of pipelines, not only improves pipeline transportation efficiency, but also reduces maintenance costs. The utility model can automatically control the time and position of air filling in the bypass air pipe, which not only ensures the need for air replenishment in the pipeline, but also avoids the waste of compressed gas in the bypass air pipe.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1 is a schematic diagram of the overall structure of the utility model.

In the figure: main pipe 1, main air pipe 2, bypass air pipe 3, air booster 4, pressure sensor 5, pneumatic stop valve 6, pressure signal collector 7, pressure data transmission line 8, signal line 9, controller 10 , Control line 11.

detailed description

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the dense-phase pneumatic conveying blockage treatment system includes a main pipeline 1 for material transportation, a main ventilation pipe 2 is connected to the starting end of the main pipeline 1, and parallel and side by side with the main pipeline 1 is arranged. A bypass air pipe 3, a plurality of pneumatic shut-off valves 6 are installed at equal intervals on the bypass air pipe 3, and a plurality of air boosters 4 are installed on the bypass air pipe 3 where two adjacent pneumatic shut-off valves 6 are located, The other end of the air booster 4 communicates with the main pipeline 1, and a plurality of pressure sensors 5 for detecting the pressure of the main pipeline 1 are installed at equal intervals on the top of the main pipeline 1. The pressure sensors 5 and the pneumatic shut-off valve 6 are connected through the automatic control system. During the working process, the conveying air is introduced through the main ventilation pipe 2, and the material inside the main pipe 1 is conveyed along the main pipe 1 through the conveying air. When a blockage occurs, the corresponding pressure signal can be detected by the pressure sensor 5. Furthermore, the bypass air pipe 3 is controlled by the automatic control system to dilute and dredge the material in the main pipeline 1 at the blocked position.

Further, the automatic control system includes a pressure signal collector 7, the pressure signal collector 7 is connected to the pressure sensor 5 through a pressure data transmission line 8 and collects the pressure signal at the corresponding position of the main pipeline 1, and the pressure signal collector 7 The signal input end of the controller 10 is connected through the signal line 9 , and the signal output end of the controller 10 is connected with the pneumatic shut-off valve 6 through the control line 11 . During the working process, the pressure signal collector 7 can collect the pressure signal collected by the pressure sensor 5, then transmit the pressure signal to the controller 10, and analyze the pressure signal through the controller 10. When the pressure value somewhere in the main pipeline 1 is high When the pressure value is set normally, it means that there is a possibility of accumulation of materials at this place, which will lead to pipeline blockage. Valve 6 is fully opened, and the high-pressure air in the bypass air pipe will quickly reach the place where the pressure is abnormal, diluting and dredging the accumulated materials.

Further, the pressure sensor 5 is a contact pressure sensor. The use of the contact pressure sensor 5 can ensure that it can conveniently collect the pressure signal at the position of the pipeline without destroying the original main pipeline 1, thereby improving the signal detection efficiency, reducing the transformation cost of the equipment, and improving the economy. efficiency.

Working process and working principle of the present utility model are:

First, by installing a pressure sensor at a certain distance on the main pipeline connected to the air booster, the pressure change inside the pipeline is monitored in real time, and a pneumatic shut-off valve is installed on the bypass air pipe at the front end of the air booster;

When the system is conveying normally, the pneumatic shut-off valve is always closed, and the bypass air pipe is not connected to the main conveying pipe;

When the pressure sensor monitors that the pressure value somewhere in the main pipeline is higher than the normal set pressure value, it means that there is a possibility of accumulation of materials in this place, which will lead to pipeline blockage, which can be collected by the pressure signal collector 7. The pressure signal collected by the pressure sensor 5 is then transmitted to the controller 10, and the pressure signal is controlled and analyzed by the controller 10. When the pressure value somewhere in the main pipeline 1 is higher than the normal set pressure value, it means The material at this place may accumulate, which will lead to pipeline blockage. At this time, from the pneumatic shut-off valve 6 in front of this position to the pneumatic shut-off valve 6 at the initial position of the bypass air pipe 3, all open, and the high pressure in the bypass air pipe The air will quickly reach the place where the pressure is abnormal, diluting and dredging the accumulated materials. From the pneumatic shut-off valve in front of this position to the pneumatic shut-off valve at the initial position of the bypass air pipe, the high-pressure air in the bypass air pipe will quickly reach the place where the pressure is abnormal, and the accumulated material will be diluted and dredged.

Further, when the value monitored by the pressure sensor returns to a normal value, the pneumatic shut-off valve is automatically closed.

Through the above description, those skilled in the art can make various changes and modifications without departing from the technical idea of the utility model, all of which are within the protection scope of the utility model. Unfinished matters of the utility model belong to the common knowledge of those skilled in the art.

Claims (3)

1. thick and thin phase burner plugging handling system, it is characterised in that：It includes being used for the main pipeline that material is conveyed（1）, in master Pipeline（1）Conveying initiating terminal be connected with main breather pipe（2）, with the main pipeline（1）It is parallel side by side be disposed with bypass tracheae （3）, the bypass tracheae（3）On multiple pneumatic stopping valves are equidistantly installed（6）, in two adjacent pneumatic stopping valves（6） The bypass tracheae at place（3）On multiple air boost motors are installed（4）, the air boost motor（4）The other end and main pipeline （1）It is connected, in main pipeline（1）Top be equidistantly provided with it is multiple be used for detect main pipeline（1）The pressure sensor of pressure （5）, the pressure sensor（5）With pneumatic stopping valve（6）Between by automatic control system be connected.

2. thick and thin phase burner plugging handling system according to claim 1, it is characterised in that：The automatic control system Including pressure signal collector（7）, the pressure signal collector（7）Pass through pressure data transmission line（8）With pressure sensor （5）It is connected and gathers main pipeline（1）The pressure signal of relevant position, the pressure signal collector（7）Pass through signal wire（9）With Controller（10）Signal input part be connected, the controller（10）Signal output part pass through control line（11）With pneumatic cut-off Valve（6）It is connected.

3. thick and thin phase burner plugging handling system according to claim 1, it is characterised in that：The pressure sensor （5）Using contact pressure sensor.