CN220239298U - Back taper device for adjusting fineness of pulverized coal - Google Patents
Back taper device for adjusting fineness of pulverized coal Download PDFInfo
- Publication number
- CN220239298U CN220239298U CN202321470831.6U CN202321470831U CN220239298U CN 220239298 U CN220239298 U CN 220239298U CN 202321470831 U CN202321470831 U CN 202321470831U CN 220239298 U CN220239298 U CN 220239298U
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- China
- Prior art keywords
- adjusting
- ventilation pipe
- pipe fitting
- pulverized coal
- fineness
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- 239000003245 coal Substances 0.000 title claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Disintegrating Or Milling (AREA)
Abstract
The utility model relates to the technical field of cement production, in particular to a back taper device for adjusting the fineness of pulverized coal, which comprises a ventilation pipe fitting and a plurality of adjusting components, wherein the inside of the ventilation pipe fitting is of a hollow structure, the top end of the ventilation pipe fitting is provided with a powder selecting connecting port, the bottom end of ventilation is provided with an air pipe connecting port, the adjusting components are distributed on the ventilation pipe fitting at intervals, one ends of the adjusting components extend into the ventilation pipe fitting, and ventilation and flow resistance adjustment is performed by adjusting the lengths of the adjusting components extending into the ventilation pipe fitting.
Description
Technical Field
The utility model relates to the technical field of cement production, in particular to a back taper device for adjusting fineness of pulverized coal.
Background
The existing coal is lack of energy, high in purchase price, unstable in source mine point, large in volatile matters, ash content and heat value fluctuation, so that the short kiln calcination process is seriously influenced, particularly, the fineness control of coal powder is important, the finer the coal powder is, the larger the surface area of the coal powder is, the easier firing is, the quicker the combustion is, but the formed flame is short, and the agglomeration of powder is easily caused by the ultrafine coal powder, so that the blockage is possibly caused, and the storage and the delivery of the coal powder to a furnace and a kiln are not facilitated. The coarse coal powder has long burning time, long flame length, unfavorable burning, and the coarse coal powder has larger ash content, so that the stable running of the kiln has larger influence on clinker quality.
In order to ensure the normal operation of the cement kiln, the control of the coal fines fineness of the coal fines preparation system is urgently needed to be solved.
Disclosure of Invention
In order to solve the problems, the utility model provides the back taper device for adjusting the fineness of the pulverized coal, which has the advantages of simple structure, reasonable design, capability of manually adjusting ventilation and flow resistance, realization of regulation and control of the fineness of the pulverized coal and convenient use.
The technical scheme adopted by the utility model is as follows:
the utility model provides a back taper device for adjusting pulverized coal fineness, includes ventilation pipe fitting and a plurality of adjusting part, the inside of ventilation pipe fitting is established to hollow structure, ventilation pipe fitting's top is equipped with selects the powder connector, ventilation's bottom is equipped with the tuber pipe connector, a plurality of adjusting part interval distribution in ventilation pipe fitting, and a plurality of adjusting part's one end stretches into in the ventilation pipe fitting, through adjusting a plurality of adjusting part stretches into ventilation pipe fitting inside length, carries out ventilation choked flow regulation, realizes pulverized coal fineness regulation and control.
Further, the ventilation pipe is provided as a conical pipe.
Further, the ventilation pipe fitting is made of wear-resistant steel plates.
Further, the adjusting assembly comprises an adjusting screw and an adjusting nut matched with the adjusting screw, one end of the adjusting screw stretches into the ventilating pipe fitting, and the adjusting nut is arranged at one end, away from the ventilating pipe fitting, of the adjusting screw and used for limiting the length, extending into the ventilating pipe fitting, of the adjusting screw.
Further, the diameter of the adjusting screw is 25mm.
Further, the adjusting screw and the adjusting nut are respectively made of stainless steel materials.
The beneficial effects of the utility model are as follows:
the pulverized coal fine adjustment device comprises a ventilation pipe and a plurality of adjustment assemblies, wherein the inside of the ventilation pipe is of a hollow structure, the top end of the ventilation pipe is provided with a powder selecting connecting port, the bottom end of ventilation is provided with an air pipe connecting port, the adjustment assemblies are distributed in the ventilation pipe at intervals, one ends of the adjustment assemblies extend into the ventilation pipe, and ventilation flow resistance adjustment is performed by adjusting the lengths of the adjustment assemblies extending into the inside of the ventilation pipe.
Drawings
FIG. 1 is a schematic view of a mounting structure in some embodiments of the present application;
FIG. 2 is a schematic diagram of the structure of some embodiments of the present application;
reference numerals illustrate: the device comprises a ventilation pipe fitting 1, a powder selecting connecting port 11, an air pipe connecting port 12, an adjusting component 2, an adjusting screw 21, an adjusting nut 22, an A-powder selecting machine cone and a B-mill tail inlet air pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, the back taper device for adjusting fineness of pulverized coal according to this embodiment includes a ventilation pipe 1 and a plurality of adjusting components 2, the inside of the ventilation pipe 1 is provided with a hollow structure, a powder selecting connection port 11 is provided at the top end of the ventilation pipe 1, an air pipe connection port 12 is provided at the bottom end of ventilation, the plurality of adjusting components 2 are distributed at intervals in the ventilation pipe 1, and one end of the plurality of adjusting components 2 extends into the ventilation pipe 1, and ventilation flow resistance adjustment is performed by adjusting the length of the plurality of adjusting components 2 extending into the ventilation pipe 1, so as to realize fineness adjustment of pulverized coal.
The embodiment has simple structure and reasonable design, and can manually regulate and control the length of the regulating assembly 2 extending into the ventilation pipe fitting 1 during use, thereby realizing ventilation flow resistance control, realizing pulverized coal fineness regulation by matching with a powder concentrator, and being convenient to regulate and control.
Specifically, the back taper device in this embodiment is used for setting up between outside selection powder machine cone and mill tail import tuber pipe pipeline, stretches into the adjustment of ventilation pipe fitting 1 length through multiunit adjusting part 2, can realize ventilation choked flow in a flexible way and adjust, and then cooperates the selection powder machine, realizes pulverized coal fineness control, its simple structure, simple to operate, regulation convenient to use.
Specifically, in this embodiment, the ventilation pipe fitting 1 is a conical pipe fitting and is configured in a back taper manner, and such a structural arrangement is mainly used for facilitating connection with the cone of the powder concentrator and the air pipe of the mill tail inlet so as to realize wind resistance adjustment.
Specifically, the ventilation pipe fitting 1 is made of wear-resistant steel plate.
In the embodiment, the ventilating pipe fitting 1 is made of the wear-resistant steel plate, so that the wear resistance of the ventilating pipe fitting can be effectively ensured, and the service life of the ventilating pipe fitting is prolonged.
In some embodiments, the adjusting assembly 2 includes an adjusting screw 21 and an adjusting nut 22 adapted to the adjusting screw 21, one end of the adjusting screw 21 extends into the ventilation pipe 1, and the adjusting nut 22 is disposed at an end of the adjusting screw 21 away from the ventilation pipe 1, so as to limit a length of the adjusting screw 21 extending into the ventilation pipe 1.
Specifically, the adjusting screw 21 has a diameter of 25mm.
Specifically, the adjusting screw 21 and the adjusting nut 22 are respectively made of stainless steel materials.
In this embodiment, the adjusting nut 22 and the adjusting screw 21 are specifically shown to be matched to adjust, so that the structure is simple, the manual adjustment can be performed, no external tool is needed, the use is convenient, in some specific embodiments, the number of the adjusting assemblies 2 can be set into three groups, and the ventilating pipe fitting 1 is installed at the outlet position of the tail grinding inlet air pipe pipeline of 200mm, so that better wind resistance adjustment can be realized.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The utility model provides a back taper device for adjusting pulverized coal fineness, its characterized in that, including ventilation pipe fitting and a plurality of adjusting part, the inside of ventilation pipe fitting is established to hollow structure, the top of ventilation pipe fitting is equipped with the powder connector of selecting, the bottom of ventilation is equipped with the tuber pipe connector, a plurality of adjusting part interval distribution in ventilation pipe fitting, and a plurality of adjusting part's one end stretches into in the ventilation pipe fitting, through adjusting a plurality of adjusting part stretches into ventilation pipe fitting inside length, carries out ventilation choked flow regulation, realizes pulverized coal fineness regulation and control.
2. The back taper device for adjusting fineness of pulverized coal according to claim 1, wherein the ventilation pipe is provided as a conical pipe.
3. The back taper device for adjusting fineness of pulverized coal according to claim 1, wherein the ventilation pipe is made of a wear-resistant steel plate.
4. The back taper device for adjusting fineness of pulverized coal according to claim 1, wherein the adjusting assembly comprises an adjusting screw and an adjusting nut matched with the adjusting screw, one end of the adjusting screw extends into the ventilating pipe, and the adjusting nut is arranged at one end of the adjusting screw, which is far away from the ventilating pipe, and is used for limiting the length of the adjusting screw extending into the ventilating pipe.
5. The back taper device for adjusting fineness of pulverized coal according to claim 4, wherein the diameter of the adjusting screw is 25mm.
6. The back taper device for adjusting fineness of pulverized coal according to claim 5, wherein the adjusting screw and the adjusting nut are respectively made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321470831.6U CN220239298U (en) | 2023-06-10 | 2023-06-10 | Back taper device for adjusting fineness of pulverized coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321470831.6U CN220239298U (en) | 2023-06-10 | 2023-06-10 | Back taper device for adjusting fineness of pulverized coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220239298U true CN220239298U (en) | 2023-12-26 |
Family
ID=89230492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321470831.6U Active CN220239298U (en) | 2023-06-10 | 2023-06-10 | Back taper device for adjusting fineness of pulverized coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220239298U (en) |
-
2023
- 2023-06-10 CN CN202321470831.6U patent/CN220239298U/en active Active
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