CN101113339A - A side-loading coal dust removal device for tamping coke oven machine - Google Patents

Abstract

The invention discloses a tamping coke oven side-loading coal dedusting device in the metallurgical industry, comprising a smoke guiding vehicle (1) with a U-shaped tube on the furnace top and a double electromagnetic cover mechanism, and a tamping device with a movable sealing frame on the side of the machine. Coal car (5), high pressure ammonia water system (12) at furnace top bridge pipe. The smoke guiding vehicle (1) with U-shaped tube on the furnace top and double electromagnetic cover mechanism guides the smoke at the smoke guiding hole; the tamping coal charging vehicle (5) with a movable sealing frame on the machine side Sealing, the special sealing material at the inner opening of the sealing frame maintains a sealing gap with the briquettes to ensure that the smoke and dust do not escape when the briquettes enter the carbonization chamber. Ammonia water, the carbonization chamber that is charging coal and the adjacent carbonization chamber will generate negative pressure in the two carbonization chambers, and the smoke at the furnace mouth will be introduced into the adjacent carbonization chamber through the U-shaped tube of the smoke guide trolley to enter the adjacent carbonization chamber. The gas collecting pipe is sent to the gas purification workshop to achieve the purpose of protecting the environment.

Description

A side-loading coal dust removal device for tamping coke oven machine

technical field

The invention relates to a side-loading coal-loading and dust-removing device of a tamping coke oven, in particular to a machine-side coal-loading and dust-removing device for preventing smoke and dust from escaping during the coal charging process of a tamping coke oven.

Background technique

At present, there is no mature technology for side-loading and dust removal of 4.3m tamping coke oven machines in China. Since no efficient measures have been taken to control the pollution of coal-charging smoke and dust, the coal-charging operation environment is harsh and the air pollution is serious. Although due to the problem of coking coal resources in our country, tamping coke ovens have developed rapidly in recent years, the development of large-scale tamping coke ovens has been seriously affected due to environmental pollution. Although most of the domestic ramming coke oven coking plants' coal charging and dust removal devices only collect the smoke and dust on the coal charging and smoke removal and dust removal truck on the top of the furnace, and use the combustion method to burn on the truck, pass through the cyclone dust collector, and the low resistance Venturi dust collector Finally, it is discharged into the atmosphere through the chimney through the fan, and the exhausted flue gas is far from reaching the standard, and the environmental protection effect is not ideal at the scene. There is also a smoke elimination and dust removal vehicle plus a dust removal ground station. It has been proved by production practice that it can receive better dust removal effect, but this device has two disadvantages. , affecting the normal production of the coke oven, the furnace door brick is easy to damage, affecting the life of the furnace body. At the same time, the capital investment is large and the floor area is also large.

Invention content:

In order to overcome the above-mentioned shortcomings of lax sealing and polluting the environment in the dust removal device on the side of the tamping coke oven coal charge machine, the present invention provides an economical, applicable, low investment; reliable technology, low pollution; long service life of the protective furnace body; , greatly improve the coal charging operation environment, improve the level of environmental protection and energy saving; bring the overall level of tamping coking technology in my country to a new level, and reach the domestic first-class and international advanced level tamping coke oven coal charging machine side dust removal technology.

The invention relates to a tamping coke oven machine side coal loading and dedusting device, which includes a furnace top smoke guiding vehicle, a machine side tamping coal loading vehicle, and a high pressure ammonia water system at the furnace top bridge pipe.

The smoke guide vehicle is equipped with a double electromagnetic cover mechanism that can simultaneously open the smoke guide hole covers of two adjacent carbonization chambers and moves up and down by an electro-hydraulic push rod, aiming at the smoke guide hole of the carbonization chamber charged with coal and the adjacent smoke guide hole. The U-shaped pipe of the smoke guide hole of the carbonization chamber.

The tamping coal charging car is equipped with a movable sealing frame at the front end of the coal chute of the tamping coal charging car. The lower part of the moving sealing frame is provided with a wheel track, and the upper part is provided with a hydraulic cylinder. The hydraulic cylinder is installed on the side wall of the coal chute. The sealing frame is driven by the hydraulic cylinder so that it moves forward along the track and tightly fits the mirror surface of the furnace door frame to achieve sealing.

Seals are installed around the mirror surface where the movable sealing frame of the tamping coal loading vehicle is in contact with the door frame of the coke oven. The inner opening of the movable sealing frame is equipped with an adjustable, deformable and high-temperature resistant sealing material, and the sealing material and coal cake are kept sealed. gap.

The U-shaped pipe (3) is made of stainless steel and coated with refractory paint.

The sealing material used for the moving sealing frame of the tamping coal loading car is high temperature resistant aluminum silicate fiber felt.

The double electromagnetic capping mechanism and the U-shaped tube in the smoke guiding vehicle are connected to the body of the smoke guiding vehicle through a rigid structure. Driven by the electro-hydraulic push rod to move up and down, aiming at two adjacent smoke guide holes, when coal is loaded, the smoke guide truck runs to the smoke guide hole of the coalization chamber, and is opened simultaneously by the double electromagnet cover mechanism. The smoke guide hole of the carbonization chamber and the furnace cover of the smoke guide hole of the adjacent carbonization chamber, the U-shaped tube is lowered to align with the two smoke guide holes, and enters the smoke guide state.

The moving sealing frame of the tamping coal loading vehicle is connected with the coal chute of the tamping coal loading vehicle through a steel structure. The lower part of the moving sealing frame is equipped with wheels and tracks, and the upper part is equipped with a hydraulic cylinder. The hydraulic cylinder is installed on the side wall of the coal chute. The moving sealing frame is driven by the hydraulic cylinder to move forward along the track to tightly fit the mirror surface of the furnace door frame. Sealing parts are installed around the mirror surface where the moving sealing frame is in contact with the coke oven door frame to achieve the purpose of sealing. Adjustable, deformable and high-temperature-resistant sealing material, a sealing gap is maintained between the sealing material and the briquette to ensure that the briquette can be smoothly sent into the carbonization chamber, and at the same time ensure that the smoke and dust do not escape when the briquette enters the carbonization chamber, and prevent a large amount of air from being inhaled .

The high-pressure ammonia water system at the furnace top bridge pipe is composed of process pipes, valves, and nozzles. When coal is loaded, the furnace top bridge pipe sprays high-pressure ammonia water to the carbonization chamber and the adjacent carbonization chamber that are charging coal, so that the two carbonization chambers generate negative pressure. Suction the smoke and dust emitted from the furnace door on the side of the machine during the coal charging process.

During normal coal loading, the three parts operate at the same time, and the smoke and dust during the coal loading process are smoothly introduced into the gas collection pipe and sent to the gas purification workshop for processing.

The invention can obviously reduce the escaping of smoke and raw gas when the tamping coke oven is charged with coal, and fundamentally solves the problem of serious smoke pollution in the tamping coke oven. It is economical and applicable with low investment; reliable technology and low pollution; long service life of furnace protection; greatly improved coal charging operation environment, improved environmental protection and energy saving level; brought the overall level of tamping and coking technology in my country to a new level, reaching domestic first-class and international advanced level.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the overall device schematic diagram of the present invention;

In the figure: 1. A smoke guide car with a U-shaped pipe, 5. A tamping coal loading car with a movable sealing frame, 12. A high-pressure ammonia water system at the bridge pipe on the furnace top.

Fig. 2 is a side view of the structure of the smoke guiding vehicle of the present invention;

In the figure: 2. Double electromagnetic capping mechanism, 3. U-shaped tube, 4. Electro-hydraulic push rod.

Fig. 3 is the structure schematic diagram of the tamping coal loading car with movable sealing frame of the present invention;

Among the figure: 6, mobile sealing frame, 7, wheel, 8, track, 9, hydraulic cylinder.

Fig. 4 is a structural schematic diagram of the movable sealing frame of the tamping coal loading vehicle of the present invention

Fig. 5 is a sectional view of A-A of Fig. 4

Among the figure: 10, sealing element, 11, sealing material,

Detailed ways:

The side-loading coal dust removal device of the tamping coke oven machine is a new technology that has not been adopted in the tamping coke oven at present. At the smoke hole, the double electromagnetic cover mechanism 2 simultaneously opens the furnace cover of the smoke guide hole of the coalization chamber being installed and the smoke guide hole of the adjacent carbonization chamber, and the electro-hydraulic push rod 4 drives the U-shaped pipe 3 to descend and align with the two two adjacent smoke guide holes, the flue gas in the coal charging process is introduced into the adjacent carbonization chamber through U-shaped pipe 3; 9 driving, so that the wheel 7 at the lower part of the moving sealing frame 6 moves forward along the track 8, and finally the sealing member 10 on the outside of the moving sealing frame 6 is closely attached to the mirror surface of the furnace door frame to achieve the purpose of sealing. , deformable, high-temperature-resistant special sealing material 11, and a sealing gap is maintained between the sealing material 11 and the briquettes to ensure that the briquettes can be smoothly sent into the carbonization chamber when coal is loaded, and at the same time ensure that the smoke and dust do not escape when the briquettes enter the carbonization chamber , and prevent the inhalation of a large amount of cold air, protecting the coke oven body;

The high-pressure ammonia water system 12 at the furnace top bridge pipe, the pressure of the high-pressure ammonia water can be adjusted according to the actual production.

When coal is being charged, the bridge pipe on the top of the furnace sprays high-pressure ammonia water to the carbonization chamber being coaled and the adjacent carbonization chamber to generate negative pressure in the two carbonization chambers, and to suck the smoke and dust emitted from the furnace door on the side of the machine during the coal charging process. Make sure that the seal is tight so that the smoke does not escape.

The tamping coke oven adopts a side-loading coal dust removal device, which facilitates dust control and pollution control, greatly improves the coal charging operation environment, improves environmental protection and energy saving levels, and brings the overall level of tamping coking technology in my country to a new level. First-class, international advanced level.

Claims (4)

1. a coal charging and dust removing device at tamping coke oven machine side comprises furnace roof smoke guiding bogie, pusher side tamping charging car, furnace roof bridge tube place high pressure aqua ammonia system, it is characterized in that:

Described smoke guiding bogie (1) is provided with the two electromagnetism that can open two adjacent coking chamber smoke guiding holes lids simultaneously and beats lid mechanism (2) and move up and down the U type pipe (3) of the smoke guiding hole of coking chamber smoke guiding hole that aligning is coaling and adjacent coking chamber by the electricity push rod (4) that surges;

Described tamping charging car (5) is equipped with hydrodynamic reciprocating sealing frame (6) at tamping charging car coal front of the slot, hydrodynamic reciprocating sealing frame (6) bottom is provided with wheel (7) track (8), top is provided with hydro-cylinder (9), hydro-cylinder (9) is installed on the coal groove sidewall, drives sealing frame (6) by hydro-cylinder (9) when coalingging and makes its wheel (7) reach sealing along the tight firedoor frame minute surface of track (8) reach card.

2. a kind of coal charging and dust removing device at tamping coke oven machine side as claimed in claim 1, it is characterized in that: sealing member (10) is housed around the minute surface that the hydrodynamic reciprocating sealing frame (6) of tamping charging car (5) contacts with the coke oven door frame, hydrodynamic reciprocating sealing frame (6) internal orifice be equipped with can regulate, the resistant to elevated temperatures sealing material of deformable (11), keep sealing-gap between sealing material and the briquette.

3. a kind of coal charging and dust removing device at tamping coke oven machine side as claimed in claim 1 is characterized in that: U type pipe (3) material is a stainless steel, in be coated with refractory paint.

4. a kind of coal charging and dust removing device at tamping coke oven machine side as claimed in claim 1 is characterized in that: the used sealing material of hydrodynamic reciprocating sealing frame (6) (10, the 11) material of tamping charging car (5) is high temperature resistant silicic acid aluminum fiber felt.

Images