CN205821262U - A kind of coal dust even distribution device - Google Patents
A kind of coal dust even distribution device Download PDFInfo
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- CN205821262U CN205821262U CN201620719308.6U CN201620719308U CN205821262U CN 205821262 U CN205821262 U CN 205821262U CN 201620719308 U CN201620719308 U CN 201620719308U CN 205821262 U CN205821262 U CN 205821262U
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- coal dust
- conveying pipe
- distribution device
- even distribution
- oxygen
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Abstract
The utility model discloses a kind of coal dust even distribution device, be arranged at the head of burner, comprising: oxygen conveying pipe；Multiple coal dusts conveying pipe, is fixed on the external peripheral surface of described oxygen conveying pipe；And chiller, it is arranged in around the plurality of coal dust conveying pipe, one section of tapered flow-guiding channel is formed along the direction of coal dust output and the exit of described oxygen conveying pipe inside it, wherein said coal dust even distribution device also includes: multiple distributing reinforcements, it is arranged between described coal dust conveying pipe and described flow-guiding channel, the most each distributing reinforcement is set to spiral bead structures and is fixed on the external peripheral surface of described oxygen conveying pipe, constitutes a plurality of helical duct between multiple distributing reinforcements.Of the present utility model have the technical effect that the distributing homogeneity that improve coal dust in burner exit so that process of coal combustion is more stable, thus avoid the problem that local is burnt partially.
Description
Technical field
This utility model relates to a kind of coal dust even distribution device.
Background technology
In recent years, Development of Coal chemical industry, to develop and promote clean coal technology be that China solves efficiently utilizing and reducing ring of coal
The Main way of environment pollution.Coal gasification burner will directly affect as the key equipment of Coal Chemical Industry gasification installation, the conveying of coal dust
The combustion efficiency of burner.Single pulverized coal channel leads directly to the burner of burner hearth, makes coal dust at the skewness in exit, coal dust
Circulate outside pipeline high speed pure oxygen, and outside the coal dust of this inner side, the arrangement of pure oxygen is commonly called as " bellows chamber coal ".But, this burner
Owing to also setting up one layer of chiller outside oxygen channel for protecting burner head, oxygen is outside coal dust so that coal dust
Temperature reduce relatively slow, the burner life-span at high temperature is comparatively short, and in outer oxygen burning of coal make oxygen cannot penetrate to
Coal dust center, causes oxygen to mix with coal dust abundant not, and this also makes the single load of such burner to improve
Too much.
In order to improve the burner life-span, the coal dust gasification burner of the most a lot of top spray devices all uses pure oxygen-coal dust-cooling dress
The arrangement put, is commonly called as " coal bag wind ", and the coal dust temperature of chiller side circulation is the lowest, greatly improves burner
, there is not oxygen and cannot penetrate the situation that coal dust mixing is uneven in average life, and outside the oxygen one week coal dust that all circulates.Remove
Improving outside the life-span of chiller, the load of single burner can also improve a lot.But this coal dust burner is for coal dust
Conveying and the distributing homogeneity in exit poor, coal dust channel belongs to sandwich passage, and coal dust circulation is difficult to protect after entering
Demonstrate,prove whole interlayer to quickly fill with, and uniformly eject in exit surrounding, thus combustion process will be because of the distribution of coal dust
Uneven and local burning problem partially occur, the most whole burner exit, surrounding flame distribution is uneven, and some oxygen is too high, some oxygen
Gas is too low.Therefore, coal dust is had higher requirement in terms of the distributing homogeneity in burner exit.
Utility model content
In view of drawbacks described above or deficiency present in prior art, the utility model proposes a kind of coal dust even distribution device,
Which raises the coal dust distributing homogeneity in burner exit so that burner combustion process is more stable, thus avoids the occurrence of office
The problem that portion burns partially.
To achieve these goals, this utility model provides a kind of coal dust even distribution device, is arranged at the head of burner, its
Including: oxygen conveying pipe；Multiple coal dusts conveying pipe, is fixed on the external peripheral surface of described oxygen conveying pipe；And cooling dress
Put, be arranged in around the plurality of coal dust conveying pipe, along direction and the described oxygen conveying pipe of coal dust output inside it
Exit forms one section of tapered flow-guiding channel；Wherein, described coal dust even distribution device also includes: multiple distributing reinforcements, is arranged in institute
Stating between coal dust conveying pipe and described flow-guiding channel, the most each distributing reinforcement is set to spiral bead structures and is fixed on described
On the external peripheral surface of oxygen conveying pipe, between multiple distributing reinforcements, constitute a plurality of helical duct.
Alternatively, described coal dust conveying pipe includes one section of helical curve spool.
Alternatively, the spiral bead structures of described distributing reinforcement has identical with the helical curve spool of described coal dust conveying pipe
Rotation direction and pitch.
Alternatively, the quantity of the plurality of distributing reinforcement and the quantity correspondent equal of the plurality of coal dust conveying pipe, it is respectively provided with
For 3-6.
Alternatively, described coal dust even distribution device also includes fixed plate, and the plurality of coal dust is carried pipe by welding by it
The initiating terminal of end and the plurality of distributing reinforcement is fixed.
Alternatively, the spiral curve circumference of cannon bone of the plurality of coal dust conveying pipe extends at least 1 spiral shell around described oxygen conveying pipe
Away from.
Alternatively, the plurality of distributing reinforcement extends at least 1/4 pitch around described oxygen conveying pipe.
Alternatively, described coal dust conveying pipe and described distributing reinforcement are fixed by welding on described oxygen conveying pipe respectively.
Alternatively, it is provided with gas whirling device at the oxygen outlet of described oxygen conveying pipe.
Alternatively, described coal dust conveying pipe also includes one section of rectilinear tubes, and it is arranged on the helical curve of described coal dust conveying pipe
The front end of spool.
Of the present utility model have the technical effect that, by the spiral bead structures of distributing reinforcement so that coal dust exports from coal dust
Pipe flow is uniformly distributed to tapered flow-guiding channel after going out, improve the coal dust distributing homogeneity in burner exit so that
Process of coal combustion is more stable, thus avoids the problem that local is burnt partially.
It is described above in the description of the feature mentioned and feature combination and accompanying drawing below that mention and/or individually shows
Show that feature in the accompanying drawings and feature combination are available, can be used not only in the combination each specified, and can be also used in it
He combines or in single feature, without deviating from scope of the present utility model.
Accompanying drawing explanation
The detailed description to non-limiting example made by referring to the following drawings, other spy of the present utility model
Levy, purpose and advantage will become more apparent upon.Wherein display:
Fig. 1 is the structural map of the coal dust even distribution device according to embodiment of the present utility model.
Fig. 2 is the zoomed-in view of the coal dust conveying pipe of the coal dust even distribution device shown in Fig. 1.
Fig. 3 is the zoomed-in view of the distributing reinforcement of the coal dust even distribution device shown in Fig. 1.
Detailed description of the invention
With embodiment, the application is described in further detail below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to this utility model.Further need exist for explanation
, for the ease of describing, accompanying drawing illustrate only the part relevant to utility model.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the structural map of the coal dust even distribution device according to embodiment of the present utility model.As it is shown in figure 1, coal dust is uniform
Device 100 is arranged at the head of burner, and it specifically includes that oxygen conveying pipe 1, multiple coal dusts conveying pipe 2, and chiller 3.
Specifically, coal dust conveying pipe 2 is set to comprise one section of helical curve spool 2b tubular structure and to be fixed on oxygen defeated
Send on the external peripheral surface of pipe 1.Fig. 2 is the zoomed-in view of the coal dust conveying pipe of the coal dust even distribution device shown in Fig. 1.Such as Fig. 2 institute
Showing, helical curve spool 2b can make coal dust produce certain eddy flow in course of conveying, and strengthening coal dust is at the circle of oxygen conveying pipe 1
Distribution at Zhou.According to actually used situation, the quantity of coal dust conveying pipe 2 could be arranged to 3-6.
Specifically, chiller 3 is arranged in multiple coal dust conveying pipe 2 around, by cooling water by water inlet backwater channel 4
Chiller 3 circulates, thus reduces the temperature of the coal dust being delivered in coal dust conveying pipe 2, improve the average of whole burner
Life-span.It addition, the exit of the direction that exports along coal dust, the inner side of chiller 3 and described oxygen conveying pipe 1 forms one section
Tapered flow-guiding channel, coal dust forms certain converging with the oxygen of conveying oxygen conveying pipe 1 after this flow-guiding channel flows out
Angle, thus facilitate the mixing of coal dust and oxygen.
In order to make coal dust be evenly distributed at the circumferencial direction of flow-guiding channel, thus with being more fully mixed, such as Fig. 1 of oxygen
Shown in, described coal dust even distribution device 100 also includes multiple distributing reinforcement 10, be arranged in coal dust conveying pipe 2 and preceding guide passage it
Between.Each distributing reinforcement 10 is set to spiral bead structures and is fixed on the external peripheral surface of oxygen conveying pipe 1.Fig. 3 is Fig. 1
The zoomed-in view of the distributing reinforcement of shown coal dust even distribution device.As it is shown on figure 3, in order to strengthen coal dust further at oxygen conveying pipe
Distribution at the circumference of 1, the spiral bead structures of distributing reinforcement 10 has identical with the helical curve spool 2b of coal dust conveying pipe 2
Rotation direction and pitch, constitute a plurality of helical duct between multiple distributing reinforcements 10, every helical duct is corresponding to each helical curve spool
The lower section of 2b and arrange, the cross section of distributing reinforcement 10 could be arranged to circle, trapezoidal, rectangle or square shape.It addition,
The quantity of distributing reinforcement 10 and the quantity correspondent equal of coal dust conveying pipe 2, could be arranged to 3-6.
So, arrive separately at, after multiple coal dusts conveying pipe 2 flows out, the multiple spiral shells being made up of multiple distributing reinforcements 10 when coal dust
Rotation passage, forms the radial equipartition situation of one week multiply coal dust, and is delivered to aforementioned tapered along the curved path of helical duct
Flow-guiding channel, it is achieved that multiply coal dust is uniform burner exit, and is formed with the oxygen of the circulating inside of discharge
Necessarily converge in angle is blended in stove and fully burn.
Further, as it is shown in figure 1, coal dust even distribution device 100 also includes fixed plate 5, the spiral of multiple coal dusts conveying pipe 2
The end of curve pipe 2b and the initiating terminal of multiple distributing reinforcement 10 are individually fixed in solid along the circumference of oxygen conveying pipe 7 by welding
Determine at plate 5.Preferably, the circumference both along oxygen conveying pipe 7 is fixed at fixed plate 5 equably.Furthermore it is preferred that coal
Powder conveying pipe 2, distributing reinforcement 10 are fixed by welding in the most respectively on oxygen conveying pipe 1, thus ensure that coal dust even distribution device 100 exists
Dismounting and the stability of running.
As the optional embodiment of one, the helical curve spool 2b of coal dust conveying pipe 2 extends to around oxygen conveying pipe 1
The length of few pitch is at fixed plate 5, and distributing reinforcement 10 begins around oxygen conveying pipe 1 from fixed plate 5 and extends at least 1/4
The length of pitch, as shown in Figure 2 and Figure 3.Depending on the size of pitch is according to actually used situation.
As the optional embodiment of one, the exit of oxygen conveying pipe 1 can arrange gas whirling device, make from oxygen
The exit of letter shoot 1 oxygen out is become rotational flow gas from advection gas, increases the mixing of oxygen and coal dust further
Uniformity.
As the optional embodiment of one, coal dust conveying pipe 2 also includes one section of rectilinear tubes 2a, is arranged on described coal dust defeated
Send the front end of the helical curve spool 2b of pipe 2, it is simple to quickly pulverized coal conveying, it is to avoid coal dust deposits blocking in course of conveying.
The coal dust even distribution device that this utility model provides, by the spiral bead structures of distributing reinforcement so that coal dust is from coal
Powder outlet tube is uniformly distributed to tapered flow-guiding channel after flowing out, and improves coal dust being evenly distributed in burner exit
Property so that process of coal combustion is more stable, thus avoids the problem that local is burnt partially.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that utility model scope involved in the application, however it is not limited to the particular combination of above-mentioned technical characteristic
Technical scheme, also should contain in the case of conceiving without departing from described utility model simultaneously, by above-mentioned technical characteristic or its equivalent
Other technical scheme that feature carries out combination in any and formed.Such as features described above has with (but not limited to) disclosed herein
The technical scheme that the technical characteristic having similar functions is replaced mutually and formed.
Claims (10)
1. a coal dust even distribution device, is arranged at the head of burner, comprising:
Oxygen conveying pipe；
Multiple coal dusts conveying pipe, is fixed on the external peripheral surface of described oxygen conveying pipe；And
Chiller, is arranged in around the plurality of coal dust conveying pipe, along direction and the described oxygen of coal dust output inside it
The exit of letter shoot forms one section of tapered flow-guiding channel；
It is characterized in that, described coal dust even distribution device also includes:
Multiple distributing reinforcements, are arranged between described coal dust conveying pipe and described flow-guiding channel, and the most each distributing reinforcement is set to spiral shell
Rotating bead structures and be fixed on the external peripheral surface of described oxygen conveying pipe, constitute between multiple distributing reinforcements a plurality of spiral lead to
Road.
Coal dust even distribution device the most according to claim 1, it is characterised in that described coal dust conveying pipe includes one section of helical curve
Spool.
Coal dust even distribution device the most according to claim 2, it is characterised in that the spiral bead structures tool of described distributing reinforcement
There are the rotation direction identical with the helical curve spool of described coal dust conveying pipe and pitch.
Coal dust even distribution device the most according to claim 1, it is characterised in that the quantity of the plurality of distributing reinforcement is with described many
The quantity correspondent equal of individual coal dust conveying pipe, is disposed as 3-6.
Coal dust even distribution device the most according to claim 4, it is characterised in that described coal dust even distribution device also includes fixing
Plate, the end of the plurality of coal dust conveying pipe and the initiating terminal of the plurality of distributing reinforcement are fixed by it by welding.
Coal dust even distribution device the most according to claim 2, it is characterised in that the spiral curve of the plurality of coal dust conveying pipe
Circumference of cannon bone extends at least 1 pitch around described oxygen conveying pipe.
Coal dust even distribution device the most according to claim 5, it is characterised in that the plurality of distributing reinforcement is defeated around described oxygen
Pipe is sent to extend at least 1/4 pitch.
8. according to the coal dust even distribution device described in any one of claim 1 to 7, it is characterised in that described coal dust conveying pipe and institute
State distributing reinforcement to be fixed by welding in respectively on described oxygen conveying pipe.
Coal dust even distribution device the most according to claim 1, it is characterised in that set at the oxygen outlet of described oxygen conveying pipe
It is equipped with gas whirling device.
Coal dust even distribution device the most according to claim 1 and 2, it is characterised in that described coal dust conveying pipe also includes one section
Rectilinear tubes, it is arranged on the front end that described coal dust carries the helical curve spool of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719308.6U CN205821262U (en) | 2016-07-08 | 2016-07-08 | A kind of coal dust even distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620719308.6U CN205821262U (en) | 2016-07-08 | 2016-07-08 | A kind of coal dust even distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205821262U true CN205821262U (en) | 2016-12-21 |
Family
ID=57565418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620719308.6U Active CN205821262U (en) | 2016-07-08 | 2016-07-08 | A kind of coal dust even distribution device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205821262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621793A (en) * | 2022-03-17 | 2022-06-14 | 张金辉 | Burner of coal gasification equipment |
-
2016
- 2016-07-08 CN CN201620719308.6U patent/CN205821262U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621793A (en) * | 2022-03-17 | 2022-06-14 | 张金辉 | Burner of coal gasification equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190301 Address after: 201108 3111 Huaning Road, Minhang District, Shanghai Co-patentee after: Shanghai Hua Yi derived energy chemical Co., Ltd Patentee after: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Co-patentee after: SHANGHAI HUAYI ENGINEERING CO., LTD. Address before: 201108 2nd Floor, No. 3111 Huaning Road, Minhang District, Shanghai Co-patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Patentee before: SHANGHAI QIYAO THERMAL ENGINEERING CO., LTD. |
|
| TR01 | Transfer of patent right |