CN214209860U

CN214209860U - Dust removal quick ash discharge device

Info

Publication number: CN214209860U
Application number: CN202022444792.5U
Authority: CN
Inventors: 张金山; 陆恺
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-09-17
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a dust-removing quick ash discharging device, which comprises an ash storage hopper, a down pipe connected with the lower end of the ash storage hopper, a manhole maintenance pipe connected with the lower end of the down pipe, an ash discharging valve connected with the lower end of the manhole maintenance pipe, an ash discharging pipe connected with the ash discharging valve, an ash conveying air source pipe connected with the inlet of the ash discharging pipe and a turbulent air source pipe; and the disturbed flow gas source pipe is connected to the upper part of the descending pipe and is used for purging disturbed flow gas in the descending pipe. The device is provided with the vortex air source pipe of connecting the downcomer, sweeps in to the downcomer through vortex air source pipe, and the dust removal ash in the disturbance downcomer promotes the mobility of dust removal ash, blocks up when avoiding the dust removal ash whereabouts to improve the efficiency of putting the ash. Through practice, the operation of dust removal and ash discharge can be completed within 30 minutes generally after the device is adopted.

Description

Dust removal quick ash discharge device

Technical Field

The utility model relates to a dust collector, concretely relates to dust removal puts grey device fast.

Background

The dust removing and ash discharging operation of the iron-making blast furnace means that dust-containing gas is sucked from each dust source point and enters a dust remover for purification through a pipeline, and the purified pressure gas has the dust concentration<15mg/m³And the mixture is sent into a silencer through a fan, is subjected to silencing treatment and is discharged into the atmosphere through an exhaust chimney. The dust purified by the dust remover is conveyed to an ash storage hopper for storage through an embedded scraper ash conveyer at the lower part of the dust remover, and then periodicallyAnd unloading the mixture into a sealed tank car through a positive pressure conveying device for outward transportation.

The time for conveying the ash to the sealing tank car under positive pressure in the dust removal and ash discharge operation is long, generally about 50 minutes is needed, and the descending pipe is frequently blocked due to ash tide, so that a large amount of ash discharge time is consumed by a plurality of dust removal and ash discharge points.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defect of the prior art, the utility model provides a dust removal puts grey device fast, the device can promote the dust removal by a wide margin and put grey efficiency.

The technical scheme is as follows: the utility model relates to a dust-removing quick ash discharging device, which comprises an ash storage hopper, a down pipe connected with the lower end of the ash storage hopper, a manhole maintenance pipe connected with the lower end of the down pipe, an ash discharging valve connected with the lower end of the manhole maintenance pipe, an ash discharging pipe connected with the ash discharging valve, an ash conveying air source pipe connected with the inlet of the ash discharging pipe and a turbulent air source pipe; and the disturbed flow gas source pipe is connected to the upper part of the descending pipe and is used for purging disturbed flow gas in the descending pipe.

Has the advantages that: compared with the prior art, the device is provided with the vortex air source pipe of connecting the downcomer, sweeps in to the downcomer through vortex air source pipe, and the dust removal ash in the disturbance downcomer promotes the mobility of dust removal ash, blocks up when avoiding the dust removal ash to improve the efficiency of putting the ash. Through practice, the operation of dust removal and ash discharge can be completed within 30 minutes generally after the device is adopted.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in figure 1, the dust removal and rapid ash discharge device comprises an ash storage hopper 1, a downcomer 2, a manhole maintenance pipe 3, an ash discharge valve 4, an ash discharge pipe 5, an ash conveying gas source pipe 6, a turbulent flow gas source pipe 7, a first valve 8 and a second valve 9.

Specifically, the downcomer 2 is a hard pipeline with the pipe diameter of DN400 and is directly connected to the lower end of the ash storage hopper 1. The manhole maintenance pipe 3 is provided with a maintenance manhole for maintenance under special working conditions.

The ash discharging valve 4 adopts an electric valve, the ash discharging pipe 5 is connected to the ash discharging valve, and a hose is adopted, so that the sealing tank car is conveniently connected, the hose is easy to block, and the blocking probability is reduced.

The ash conveying air source pipe 6 is DN100 pipe diameter and is connected to the inlet of the ash discharging pipe 5 for providing ash conveying power. The first valve 8 is used for switching on and off the air source of the ash conveying air source pipe 6.

The turbulent air source pipe 7 adopts DN30 pipe diameter, directly leads from the air source of the ash conveying air source pipe 6, and is manually controlled by a second valve 9. The turbulent air source pipe 7 is connected to the upper part of the downcomer 2 and provides turbulent air flow in the downcomer 2. Preferably, the blowing direction of the disturbed airflow is directed as downward as possible.

Through practice, the device can reduce the dust removal ash release time within 30 minutes from original 50 minutes, and efficiency is promoted by a wide margin.

Claims

1. A dust removal quick ash discharging device is characterized by comprising an ash storage hopper (1), a descending pipe (2) connected to the lower end of the ash storage hopper (1), a manhole maintenance pipe (3) connected to the lower end of the descending pipe (2), an ash discharging valve (4) connected to the lower end of the manhole maintenance pipe (3), an ash discharging pipe (5) connected with the ash discharging valve (4), an ash conveying air source pipe (6) connected with the inlet of the ash discharging pipe (5) and a flow disturbing air source pipe (7); and the turbulent flow gas source pipe (7) is connected to the upper part of the descending pipe (2) and is used for purging turbulent flow gas in the descending pipe (2).

2. The dust removal quick ash discharging device of claim 1, wherein the pipe diameter of the ash conveying gas source pipe (6) is DN 100.

3. The dust-removing and quick ash-discharging device of claim 1, wherein the ash-conveying gas source pipe (6) is provided with a first valve (8).

4. The dust-removing quick ash-discharging device according to claim 1, wherein the tube diameter of the turbulent air source tube (7) is DN 30.

5. The dust-removing and quick ash-discharging device according to claim 1, wherein a second valve (9) is arranged on the turbulent air source pipe (7).

6. The dust-removing quick ash-discharging device according to claim 1, wherein the pipe diameter of the downcomer (2) is DN 400.

7. The dust-removing quick ash discharging device according to claim 1, wherein the inlet end of the turbulent air source pipe (7) is arranged on the ash conveying air source pipe (6).

8. The dust-removing quick ash discharging device according to claim 1, wherein the ash discharging pipe (5) is a hose.