CN214655035U - Pulverized coal distributor capable of being overhauled on line - Google Patents
Pulverized coal distributor capable of being overhauled on line Download PDFInfo
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- CN214655035U CN214655035U CN202120429683.8U CN202120429683U CN214655035U CN 214655035 U CN214655035 U CN 214655035U CN 202120429683 U CN202120429683 U CN 202120429683U CN 214655035 U CN214655035 U CN 214655035U
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Abstract
The utility model relates to a smelt technical field, especially, but pulverized coal distributor who overhauls on line is related to, it includes that the distributor entry takes over, first entry minute pipe, the second entry minute pipe, first distributor body, second distributor body and a plurality of distributor export are taken over, first entry minute pipe one end is taken over the intercommunication with the distributor entry, the other end and first distributor pulverized coal entry intercommunication, second entry minute pipe one end is taken over the intercommunication with the distributor entry, the other end and second distributor pulverized coal entry intercommunication, first entry minute pipe, all install inlet valve on the second entry minute pipe, a plurality of pulverized coal exports are taken over the intercommunication with corresponding distributor export respectively, distributor export takeover and the distributor export on the second distributor body on the first distributor body are taken over and high-furnace tuyere interval intercommunication. The device provided by the utility model long service life, and can take place to damage or carry out online maintenance when leaking the coal at the distributor body and maintain, guarantee to last coal injection.
Description
Technical Field
The utility model relates to a smelt technical field, especially relate to a buggy distributor that can overhaul on line.
Background
The coal powder distributor is an important device for uniformly distributing and conveying coal powder to a blast furnace tuyere in a blast furnace coal powder injection system, and is a device for uniformly distributing high-pressure air and coal powder to the rear air pipes and then conveying the high-pressure air and coal powder to the blast furnace tuyere through the air pipes. Due to the fact that the pulverized coal is conveyed by the high-pressure air for a long time, the pulverized coal washes the conveying equipment for a long time, the service life of the conveying equipment is seriously influenced, and meanwhile, the service life of the conventional pulverized coal distributor is seriously challenged. The damage or powder leakage of the coal powder distributor body can affect the operation of the whole coal injection system and even affect the condition of the blast furnace. The service cycle of the conventional pulverized coal distributor is prolonged by the material of the equipment and the internal fluidization of the distributor, but the situation of coal stopping caused by damage of the pulverized coal distributor cannot be avoided, and obvious defects and shortcomings exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure is provided, preparation, installation, convenient operation, long service life, and can take place to damage or leak the coal at the distributor body and carry out online maintenance and maintain, guarantee to last coal injection's a buggy distributor that can overhaul on line.
The utility model discloses a realize through following technical scheme:
a coal powder distributor capable of being overhauled on line comprises a distributor inlet connecting pipe, a first inlet branch pipe, a second inlet branch pipe, a first distributor body, a second distributor body and a plurality of distributor outlet connecting pipes, wherein the first distributor body and the second distributor body are both spherical, coal powder inlets are formed in the bottoms of the first distributor body and the second distributor body, a plurality of coal powder outlets are formed in the tops of the first distributor body and the second distributor body, one end of the first inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the first inlet branch pipe is communicated with a coal powder inlet of the first distributor, one end of the second inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the second inlet branch pipe is communicated with a coal powder inlet of the second distributor, inlet valves are mounted on the first inlet branch pipe and the second inlet branch pipe, the coal powder outlets on the first distributor body and the second distributor body are respectively communicated with the corresponding distributor outlet connecting pipes, and each distributor outlet connecting pipe is provided with an outlet valve, and the distributor outlet connecting pipe on the first distributor body and the distributor outlet connecting pipe on the second distributor body are communicated with the blast furnace tuyere at intervals.
Further, first distributor body and second distributor body constitute by two hemispherical structures, and pass through flange seal between two hemispherical structures and connect.
Preferably, the inlet valve and the outlet valve are electric ball valves.
The beneficial effects of the utility model
The utility model discloses a but buggy distributor of online maintenance who protects has following advantage:
1. according to the scheme, when the coal distributor breaks down or is damaged, on-line maintenance is carried out under the condition that coal injection is not influenced or reduced.
2. This technical scheme designs two distributor bodies, carries the long service life twice than a cavity to the impact of equivalent buggy to cavity and pipeline, and this scheme can realize the online change of cavity, avoids the coal that stops that the cavity damage caused.
3. The distributor body of the design scheme is spherical, so that the abrasion of pulverized coal to the cavity wall is greatly reduced, and the service life of equipment is prolonged.
4. Simple structure, convenient manufacture, installation and operation.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
in the figure, 1, a distributor inlet connecting pipe, 2, a first inlet branch pipe, 3, an inlet valve, 4, a second distributor body, 5, a distributor outlet connecting pipe, 6, an outlet valve, 7, a second inlet branch pipe, 8, a first distributor body, 9, a flange and 10, a blast furnace tuyere are arranged.
Detailed Description
A coal powder distributor capable of being overhauled on line comprises a distributor inlet connecting pipe 1, a first inlet branch pipe 2, a second inlet branch pipe 7, a first distributor body 8, a second distributor body 4 and a plurality of distributor outlet connecting pipes 5, wherein the first distributor body and the second distributor body are both spherical, coal powder inlets are formed in the bottoms of the first distributor body and the second distributor body, a plurality of coal powder outlets are formed in the tops of the first distributor body and the second distributor body, one end of the first inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the first inlet branch pipe is communicated with a coal powder inlet of a first distributor, one end of the second inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the second inlet branch pipe is communicated with a coal powder inlet of a second distributor, inlet valves 3 are mounted on the first inlet branch pipe and the second inlet branch pipe, the plurality of coal powder outlets on the first distributor body and the second distributor body are respectively communicated with the corresponding distributor outlet connecting pipes, and each distributor outlet connecting pipe is respectively provided with an outlet valve 6, and the distributor outlet connecting pipe on the first distributor body and the distributor outlet connecting pipe on the second distributor body are communicated with the blast furnace tuyere 10 at intervals.
Further, first distributor body and second distributor body constitute by two hemispherical structures, and pass through flange 9 sealing connection between two hemispherical structures, convenient preparation, installation and maintenance to can the significantly reduced buggy to the wearing and tearing of chamber wall, increase the life of equipment.
Optimally, the inlet valve and the outlet valve are electric ball valves, so that automatic control is conveniently realized.
The utility model discloses a but buggy distributor of on-line maintenance, for causing all coal distributor export takeovers unable uses after avoiding the fluidization chamber in the distributor to damage, design into two independent cavitys with the distributor to 16 wind gaps of blast furnace are the example, take over 16 exports respectively to set up 8 on two distributors respectively, satisfy blast furnace jetting technological requirement.
If 16 tuyeres of blast furnace are marked as (i &)
Marking the outlet connection pipe on the first distributor body as r
(iii) the outlet connection pipe mark on the second distributor body (c)
And connecting the distributor outlet connecting pipes with the blast furnace tuyere serial numbers in a one-to-one correspondence manner. The design is to ensure that the coal injection and feeding of the blast furnace are uniformly and controllably realized no matter the two distributor bodies work independently or simultaneously so as to meet the technological requirements of the coal injection of the blast furnace.
When the outlet connecting pipe or the body of the first distributor is damaged, all outlet valves on all outlet connecting pipes on the first distributor are closed, and meanwhile, the inlet valve on the first inlet branch pipe is closed, so that the damaged part can be overhauled, and the second distributor can still normally work for coal injection.
Meanwhile, due to the design of the two distributor bodies, the impact of the conveyed equivalent amount of coal powder on the cavity and the pipeline is two times longer than the service life of one distributor body. And the distributor body is spherical, so that the abrasion of the pulverized coal to the cavity wall is greatly reduced, and the service life of the equipment can be further prolonged.
To sum up, the utility model discloses a but buggy distributor of on-line maintenance that protects, simple structure, preparation, installation, convenient operation, long service life, and can take place to damage or leak the coal at the distributor body and carry out the maintenance of on-line maintenance, guarantee to last the coal injection.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A coal powder distributor capable of being overhauled on line is characterized by comprising a distributor inlet connecting pipe, a first inlet branch pipe, a second inlet branch pipe, a first distributor body, a second distributor body and a plurality of distributor outlet connecting pipes, wherein the first distributor body and the second distributor body are both spherical, coal powder inlets are formed in the bottoms of the first distributor body and the second distributor body, a plurality of coal powder outlets are formed in the tops of the first distributor body and the second distributor body, one end of the first inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the first inlet branch pipe is communicated with a coal powder inlet of a first distributor, one end of the second inlet branch pipe is communicated with the distributor inlet connecting pipe, the other end of the second inlet branch pipe is communicated with a coal powder inlet of a second distributor, inlet valves are mounted on the first inlet branch pipe and the second inlet branch pipe, and a plurality of coal powder outlets on the first distributor body and the second distributor body are respectively communicated with the corresponding distributor outlet connecting pipes, and each distributor outlet connecting pipe is provided with an outlet valve, and the distributor outlet connecting pipe on the first distributor body and the distributor outlet connecting pipe on the second distributor body are communicated with the blast furnace tuyere at intervals.
2. The on-line serviceable pulverized coal distributor according to claim 1, wherein the first distributor body and the second distributor body are each composed of two hemispherical structures, and the two hemispherical structures are connected by a flange seal.
3. The on-line coal powder distributor according to claim 1, wherein the inlet valve and the outlet valve are electric ball valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429683.8U CN214655035U (en) | 2021-02-27 | 2021-02-27 | Pulverized coal distributor capable of being overhauled on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429683.8U CN214655035U (en) | 2021-02-27 | 2021-02-27 | Pulverized coal distributor capable of being overhauled on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214655035U true CN214655035U (en) | 2021-11-09 |
Family
ID=78449755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120429683.8U Active CN214655035U (en) | 2021-02-27 | 2021-02-27 | Pulverized coal distributor capable of being overhauled on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214655035U (en) |
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2021
- 2021-02-27 CN CN202120429683.8U patent/CN214655035U/en active Active
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