CN208542339U - A kind of efficient coal-grinding, coal powder injection all-in-one machine - Google Patents
A kind of efficient coal-grinding, coal powder injection all-in-one machine Download PDFInfo
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- CN208542339U CN208542339U CN201820317989.2U CN201820317989U CN208542339U CN 208542339 U CN208542339 U CN 208542339U CN 201820317989 U CN201820317989 U CN 201820317989U CN 208542339 U CN208542339 U CN 208542339U
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- coal
- grinding
- powder injection
- wear plate
- machine
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Abstract
The utility model provides a kind of efficient coal-grinding, coal powder injection all-in-one machine, including feeding mechanism, coal-grinding mechanism and the coal injection organization set gradually, and provides the transmission component of power；Feeding mechanism includes batcher and the hopper that is set at the top of batcher；Coal-grinding mechanism includes shell, and enclosure interior is equipped with wear plate, and the inner wall of wear plate and shell is in angle setting；Transmission component includes that transmission shaft, coal-grinding mechanism and coal injection organization are improved work efficiency by transmission axis connection the utility model has the beneficial effects that having subtracted complicated grinding process；Totally-enclosed operation improves working environment；High speed rotation, is burnt more abundant by 80-200 μm of coal particle size；Coal-grinding, coal powder injection integration, reduce technique setting, reduce energy loss；Wear plate design is rationally, durable, and the burn-off rate of coal is 98%, and combustion thermal efficiency 90%, flue dust can reach 10mg/m3。
Description
Technical field
The utility model belongs to mechanical equipment technical field, more particularly, to a kind of efficient coal-grinding, coal powder injection all-in-one machine.
Background technique
China is a coal demand big country, and either industry, agricultural all be unable to do without coal, in existing technology generally
Coal-burning boiler the thermal efficiency 70~80% or so, and temperature control is adjusted slowly, and temperature error changes greatly, cannot respond to national pass
In the basic principle for the environmental protection index that economizes on resources, increases economic efficiency, improves, how operating cost is reduced, improved efficiency, reduced
Personnel labor intensity, being one has technical problem to be solved.
Summary of the invention
The purpose of this utility model is existing coal-burning boiler operating cost height, working efficiency in background technique to be solved
Problem low, personnel labor intensity is high provides a kind of by powder, being blown coal grinding using blower efficient to combustion chamber
Coal-grinding, coal powder injection all-in-one machine.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of efficient coal-grinding, coal powder injection one
Machine including feeding mechanism, coal-grinding mechanism and the coal injection organization set gradually, and provides the transmission component of power；
The feeding mechanism includes batcher and the hopper that is set at the top of the batcher；
The coal-grinding mechanism includes shell, and the enclosure interior is equipped with wear plate, and the wear plate is interior with the shell
Wall is arranged in angle；
The transmission component includes transmission shaft, and the coal-grinding mechanism and the coal injection organization pass through the transmission axis connection.
Further, the transmission component further includes the worm gearing with the transmission axis connection, and is set to
Bearing block and bearing before and after the transmission shaft, the worm gearing connect speed regulating motor.
Further, the coal-grinding mechanism further includes the centrifugal blower for being set to coal-grinding mechanism side, the centrifugation
Draught fan impeller is equipped in blower, the draught fan impeller and the wear plate share the transmission shaft.
Further, the wear plate is three-level or multistage wear plate, is provided between the wear plate and the shell
Gap.
Further, the gap between the wear plate and the shell is 3-5mm.
Further, one end of the coal-grinding mechanism is exported equipped with coal powder injection, and connecting flange is arranged in the coal powder injection exit,
The connecting flange connects combustion chamber by pipeline.
Further, the coal-grinding mechanism further includes pedestal and upper cover, and the pedestal is set to the housing bottom, described
Upper cover is set to the case top.
Further, the shell divides upper cover and pedestal two parts, and centre is attached using bolt.
The utility model has the advantages and positive effects of:
Due to the adoption of the above technical scheme, the utility model has the advantage that compared with prior art
1. having subtracted complicated grinding process, improve work efficiency；
2. totally-enclosed operation improves working environment；
3. high speed rotation, is burnt more abundant by 80-200 μm of coal particle size；
4. coal-grinding, coal powder injection integration, reduce technique setting, reduce energy loss；
5. wear plate design is rationally, durable；
6. performance indicator: the burn-off rate of coal is 98%, and combustion thermal efficiency 90%, flue dust can reach 10mg/m3。
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the schematic cross-sectional view of Fig. 1.
In figure:
1, hopper 2, batcher 3, worm gearing
4, speed regulating motor 5, pedestal 6, bearing
7, pedestal 8, upper cover 9, wear plate
10, transmission shaft 11, centrifugal blower 12, bearing block
13, coal powder injection exports
Specific embodiment
As shown in Figure 1, the present embodiment provides a kind of efficient coal-grinding, coal powder injection all-in-one machine, including set gradually feeding mechanism,
Coal-grinding mechanism and coal injection organization, and the transmission component of power is provided；Feeding mechanism includes batcher 2 and is set to batcher 2
The hopper 1 at top, hopper 1 use taper, are conducive to feed, transmission component includes transmission shaft 10, is connect with transmission shaft 10
Worm gearing 3, and be set to the bearing block 12 and bearing 6 of the front and back of transmission shaft 10, the connection speed regulation of worm gearing 3
The bottom of motor 4, speed regulating motor is equipped with pedestal 5, is used to support speed regulating motor, it is ensured that the safety and stability in use process, coal-grinding
Mechanism and coal injection organization are by transmission axis connection, and the thermal efficiency for solving current chain-type heating furnace is low, and temperature control is unstable,
Not the problem of grain grade not can guarantee.
As shown in Fig. 2, coal-grinding mechanism includes shell, enclosure interior is equipped with wear plate 9, and wear plate 9 and the inner wall of shell are in
Angle setting, wherein the angle of angle is set as 5-30 °, this example needs to be arranged wear plate 9 and shell according to actual production
Inner wall angle be 10 °, wear plate 9 is three-level or multistage wear plate, and gap, wear plate 9 are provided between wear plate 9 and shell
Gap between shell is 3-5mm, during use state, and due to transmission shaft main shaft high speed rotation, coal dust passes through first
The interaction of three-level or multistage wear plate is ground；By the wind pressure of centrifugal blower, coal particle size is reached 80-200 μm
Pulverized coal particle directly by coal powder injection outlet be delivered in coal injection pipe, reach required design requirement, not only reduce raw coal
Dosage, and improve the thermal efficiency.
The shell of coal-grinding mechanism includes upper cover 8 and 7 two parts of pedestal, and pedestal 7 is set to housing bottom, and upper cover 8 is set to
Case top, centre are attached using bolt.Coal-grinding mechanism further includes the centrifugal blower 11 for being set to coal-grinding mechanism side, from
Draught fan impeller is equipped in heart blower 11, draught fan impeller and wear plate 9 share transmission shaft 10, and wear plate is by wear-resisting plate rack and passes
Moving axis 10 connects, and one end of coal-grinding mechanism is equipped with coal powder injection outlet 13, connecting flange is arranged at coal powder injection outlet 13, connecting flange passes through
Pipeline connects combustion chamber, and the present invention is heated by the way of coal powder injection burning, not only reduces raw coal dosage, and improve heat
Efficiency, simultaneously because coal powder injection mode is carried out continuously and in turn ensures fire box temperature, the color and bulk density for reaching grain shine with consecutive days
It air-dries quite, improves the grade of grain.
The course of work of the present embodiment is as follows:
1) it is fed from hopper using Full-atomatic feeding machine；
2) after starting speed regulating motor, coal-grinding, coal powder injection all-in-one machine are started to work；
3) due to main shaft high speed rotation, coal dust passes through three-level first or the interaction of multistage wear plate is ground；It is logical
The pulverized coal particle that coal particle size reaches 80-200 μm is directly delivered to coal injection pipe by coal powder injection outlet by the wind pressure for crossing centrifugal blower
It is interior, reach required design requirement；
4) coal dust big for particle continuation is ground in coal pulverizer, until defeated by centrifugal blower after reaching floating state
It send to coal injection pipe.
The beneficial effects of the utility model are:
1. having subtracted complicated grinding process, improve work efficiency；
2. totally-enclosed operation improves working environment；
3. high speed rotation, is burnt more abundant by 80-200 μm of coal particle size；
4. coal-grinding, coal powder injection integration, reduce technique setting, reduce energy loss；
5. wear plate design is rationally, durable；
6. performance indicator: the burn-off rate of coal is 98%, and combustion thermal efficiency 90%, flue dust can reach 10mg/m3。
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (8)
1. a kind of efficient coal-grinding, coal powder injection all-in-one machine, it is characterised in that: including feeding mechanism, coal-grinding mechanism and the spray set gradually
Coal mechanism, and the transmission component of power is provided；
The feeding mechanism includes batcher and the hopper that is set at the top of the batcher；
The coal-grinding mechanism includes shell, and the enclosure interior is equipped with wear plate, and the inner wall of the wear plate and the shell is in
Angle setting；
The transmission component includes transmission shaft, and the coal-grinding mechanism and the coal injection organization pass through the transmission axis connection.
2. a kind of efficient coal-grinding according to claim 1, coal powder injection all-in-one machine, it is characterised in that: the transmission component also wraps
The worm gearing with the transmission axis connection is included, and is set to bearing block and bearing before and after the transmission shaft, it is described
Worm gearing connects speed regulating motor.
3. a kind of efficient coal-grinding according to claim 1, coal powder injection all-in-one machine, it is characterised in that: the coal-grinding mechanism is also wrapped
Include the centrifugal blower for being set to coal-grinding mechanism side, be equipped with draught fan impeller in the centrifugal blower, the draught fan impeller with
The wear plate shares the transmission shaft.
4. a kind of efficient coal-grinding according to claim 1 to 3, coal powder injection all-in-one machine, it is characterised in that: the wear plate
For three-level or multistage wear plate, gap is provided between the wear plate and the shell.
5. a kind of efficient coal-grinding according to claim 4, coal powder injection all-in-one machine, it is characterised in that: the wear plate with it is described
Gap between shell is 3-5mm.
6. a kind of efficient coal-grinding according to claim 1, coal powder injection all-in-one machine, it is characterised in that: the coal-grinding mechanism
One end is exported equipped with coal powder injection, and connecting flange is arranged in the coal powder injection exit, and the connecting flange connects combustion chamber by pipeline.
7. a kind of efficient coal-grinding according to claim 5, coal powder injection all-in-one machine, it is characterised in that: the coal-grinding mechanism is also wrapped
Pedestal and upper cover are included, the pedestal is set to the housing bottom, and the upper cover is set to the case top.
8. a kind of efficient coal-grinding according to claim 7, coal powder injection all-in-one machine, it is characterised in that: the shell divide upper cover with
Pedestal two parts, centre are attached using bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317989.2U CN208542339U (en) | 2018-03-08 | 2018-03-08 | A kind of efficient coal-grinding, coal powder injection all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317989.2U CN208542339U (en) | 2018-03-08 | 2018-03-08 | A kind of efficient coal-grinding, coal powder injection all-in-one machine |
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| Publication Number | Publication Date |
|---|---|
| CN208542339U true CN208542339U (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820317989.2U Active CN208542339U (en) | 2018-03-08 | 2018-03-08 | A kind of efficient coal-grinding, coal powder injection all-in-one machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325684A (en) * | 2018-03-08 | 2018-07-27 | 国家粮食局科学研究院 | A kind of efficient coal-grinding, coal powder injection all-in-one machine |
-
2018
- 2018-03-08 CN CN201820317989.2U patent/CN208542339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325684A (en) * | 2018-03-08 | 2018-07-27 | 国家粮食局科学研究院 | A kind of efficient coal-grinding, coal powder injection all-in-one machine |
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