CN214088544U

CN214088544U - Coal injection powder process sack ash bucket putty detection device

Info

Publication number: CN214088544U
Application number: CN202023311459.3U
Authority: CN
Inventors: 丁云龙; 吕彪强
Original assignee: Mountop Group Co ltd
Current assignee: Mountop Group Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a coal injection powder process sack ash bucket putty detection device, including the sack box, sack bottom half sets up the sack ash bucket, and the export of sack ash bucket bottom passes through the connecting tube and connects the buggy storehouse, and the connecting tube sets up discharging equipment, sack ash bucket side sets up first temperature detect element, the connecting tube still sets up second temperature detect unit. The device utilizes the temperature difference to judge whether discharging equipment on the connecting pipeline between sack ash bucket and the buggy storehouse normally works through measuring the temperature of sack ash bucket and sack ash bucket below connecting pipeline temperature to whether long-pending powder appears in can accurately detecting the ash bucket, in time avoid the potential safety hazard that the ash bucket putty caused.

Description

Coal injection powder process sack ash bucket putty detection device

Technical Field

The utility model relates to a blast furnace coal injection system, especially a coal injection powder process sack ash bucket putty detection device.

Background

The key equipment of coal injection system's powder process sack is as powder process system, when ash bucket lower part discharging equipment breaks down unable normal ejection of compact, will lead to long-pending powder in the ash bucket, and the too much load grow that can lead to the sack of long-pending powder brings the hidden danger to the structural security of coal injection factory building, and a large amount of long-pending powder in the ash bucket can lead to the throughput step-down of sack, influences the emission of system.

In order to prevent the powder accumulation in the ash bucket, the material level device is arranged in the ash bucket according to the commonly used treatment scheme at present, the material level device adopted at present mainly has two problems, the cheap material level device is poor in measurement precision, the actual use effect is poor, and the protection effect cannot be achieved. The material level device with good use effect has high equipment cost and causes burden to the production cost of enterprises.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the invention aims to provide a low-cost coal injection pulverizing cloth bag ash hopper blockage detection device which can accurately detect whether powder is accumulated in an ash hopper.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coal injection powder process sack ash bucket putty detection device, includes the sack box, and sack bottom of the box portion sets up the sack ash bucket, and sack ash bucket bottom export passes through the connecting tube and connects the buggy storehouse, and the connecting tube sets up discharging device, sack ash bucket side sets up first temperature-detecting element, the connecting tube still sets up second temperature-detecting element.

Furthermore, the first temperature detection element is positioned on the side surface of the ash bucket of the cloth bag close to the bottom outlet.

Further, the distance between the first temperature detection element and the outlet at the bottom of the ash bucket of the cloth bag is about 1 meter.

Further, the second temperature detection unit is positioned below the discharging device.

Furthermore, the second temperature detection unit is close to the position where the connecting pipeline is connected with the pulverized coal bunker.

Furthermore, a heat-insulating spacer bush is sleeved outside the connecting pipeline.

Furthermore, the number of the cloth bag ash hoppers is at least two.

Further, the discharging equipment comprises an air locking device and a coal dust filtering device.

Has the advantages that: by adopting the blockage detection device of the utility model, whether the discharging equipment on the connecting pipeline between the cloth bag ash bucket and the coal powder bin works normally is judged by measuring the temperature of the cloth bag ash bucket and the temperature of the connecting pipeline below the cloth bag ash bucket by utilizing the temperature difference, so that whether powder deposition occurs in the ash bucket can be accurately detected, and potential safety hazards caused by blockage of the ash bucket can be avoided in time; the temperature detection unit can adopt conventional temperature detector equipment, and extra economic burden can not be brought to production enterprises.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-a cloth bag box body; 2-bag ash bucket; 3-locking the gas device; 4-a pulverized coal filtering device; 5-a flexible connection means; 6-a first temperature detection element; 7-connecting a pipeline; 8-a pulverized coal bunker; 9-a second temperature detection unit.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings.

As shown in FIG. 1, the utility model discloses a coal injection powder process sack ash bucket putty detection device, including sack box 1, sack box 1 bottom sets up

sack ash bucket

2, 2 bottom exports of sack ash bucket pass through connecting tube 7 and connect buggy storehouse 8, connecting tube 7 sets up discharging equipment, discharging equipment includes air-lock device 3 and buggy filter equipment 4, air-lock device 3 commonly used impeller feeder or star type unloading valve, be used for controlling 7 break-make of connecting tube, buggy filter equipment 4 is installed on connecting tube 7 through flexible connecting device 5, buggy filter equipment 4 commonly used saw-dust separator or buggy shale shaker, the purpose is to stop the saw-dust, debris such as fibre get into the buggy storehouse. The flexible connecting device 5 is a corrugated hose for absorbing vibration energy, and can play a role in damping and silencing the connecting pipeline 7. A bin top dust removal device is arranged on the pulverized coal bin 8.

When locking gas device 3 and buggy filter equipment 4 break down, cause 7 buggy of connecting tube to carry when not unobstructed, can lead to long-pending powder in sack ash bucket 2, go out at the potential safety hazard, in order to prevent that this kind of condition from taking place, set up first temperature detect element 6 in sack ash bucket 2 side, still set up second temperature detect unit 9 at the connecting tube.

In this example, the first temperature detection element 6 is installed at a position on the side surface of the cloth bag dust hopper 2 close to the bottom outlet, and the distance between the first temperature detection element 6 and the bottom outlet of the cloth bag dust hopper 2 is about 1 meter. The second temperature detection unit 9 is installed on the connection pipe 7 located below the discharging device. In addition, the heat-insulating spacer bush is sleeved outside the connecting pipeline 7, so that the influence of the external environment on the temperature of the connecting pipeline 7 can be reduced.

For convenience of expression, the temperature value of the side surface of the cloth bag ash bucket 2 measured by the first temperature detection element 6 is set as T1, the temperature of the side wall of the connecting pipeline 7 measured by the second temperature detection unit 9 is T2, and Δ T is T1-T2.

When the pulverizing system is stopped for a long time, no material passes through the connecting pipeline 7, and the value of T1 is close to that of T2. During the operation of the powder preparation system, the pulverized coal sequentially passes through the cloth bag ash bucket 2 and the connecting pipeline 7 to reach the pulverized coal bin 8, the heat of the pulverized coal is continuously dissipated to the cloth bag ash bucket 2 and the connecting pipeline 7 to reach the pulverized coal bin 8 in the process, the temperature of the pulverized coal is gradually reduced along with the increase of the conveying distance, when the powder preparation system is preheated and in the initial production stage, T1 is higher than T2, and when the production area of the powder preparation system is stable, the value of T2 is close to the value of T1. In the production process, when the air locking device 3 or the coal powder filtering device 4 below the cloth bag ash bucket 2 breaks down, the connecting pipeline 7 cannot normally convey coal powder downwards, so that the coal powder in the cloth bag ash bucket 2 starts to be accumulated, and the connecting pipeline 7 which cannot pass through in time is conveyed to the coal powder bin 8. At this time, since heat cannot be transferred to the connection pipe 7 by the continuously flowing pulverized coal, the value of T2 becomes low and the value of T1 becomes high.

Based on the above, the change of the delta T value can be tracked to judge the equipment running state at the lower part of the ash hopper in the running process of the system. When the delta T is gradually increased, the cloth bag ash bucket 2 is judged to be incapable of normally discharging materials, the hidden danger of powder accumulation exists, and the maintenance operation needs to be carried out in time.

In order to avoid the long-time shutdown of the pulverizing system caused by the blockage of the cloth bag ash bucket and influence the production progress, at least two cloth bag ash buckets 2 can be arranged at the bottom of the cloth bag box body 1. Each cloth bag ash bucket 2 is connected with a coal dust bin 8 through a connecting pipeline 7, and when a certain cloth bag ash bucket 2 is blocked, feeding of the connecting pipeline 7 is not influenced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a coal injection powder process sack ash bucket putty detection device, includes sack box (1), sack box (1) bottom sets up sack ash bucket (2), and sack ash bucket (2) bottom export is through connecting tube (7) connection buggy storehouse (8), and the connecting tube sets up discharging equipment, its characterized in that: the side surface of the cloth bag ash bucket (2) is provided with a first temperature detection element (6), and the connecting pipeline (7) is also provided with a second temperature detection unit (9).

2. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 1, characterized in that: the first temperature detection element (6) is positioned at the position of the side surface of the cloth bag ash bucket (2) close to the bottom outlet.

3. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 2, characterized in that: the distance between the first temperature detection element (6) and the outlet at the bottom of the cloth bag ash bucket (2) is about 1 meter.

4. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 1, characterized in that: the second temperature detection unit (9) is positioned below the discharging equipment.

5. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 4, characterized in that: the second temperature detection unit (9) is close to the position where the connecting pipeline (7) is connected with the pulverized coal bunker (8).

6. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 4, characterized in that: the connecting pipeline (7) is sleeved with a heat-insulating spacer sleeve.

7. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 1, characterized in that: the number of the cloth bag ash buckets (2) is at least two.

8. The coal injection pulverizing cloth bag ash bucket putty detecting device of claim 1, characterized in that: the discharging equipment comprises a gas locking device (3) and a coal dust filtering device (4).