CN102730998A - Novel valveless auto air-blocking feeding technology for vertical mill and feeding apparatus thereof - Google Patents
Novel valveless auto air-blocking feeding technology for vertical mill and feeding apparatus thereof Download PDFInfo
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- CN102730998A CN102730998A CN201110087758XA CN201110087758A CN102730998A CN 102730998 A CN102730998 A CN 102730998A CN 201110087758X A CN201110087758X A CN 201110087758XA CN 201110087758 A CN201110087758 A CN 201110087758A CN 102730998 A CN102730998 A CN 102730998A
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- vertical mill
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- feeding machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention relates to a novel vavaless auto air-blocking feeding technology for a vertical mill and a feeding apparatus thereof. Three air-locking valves and a spinning air-locking valve, generally adopted in air-locking feeding of conventional vertical mills, have the disadvantages of great air-leakage, quick wear, great maintenance workload, reduced production of the vertical mill, huge power consumption, etc. A novel vertical mill feeding technology is adopted in the invention. Materials conveyed by an incoming material belt conveyor first enters a weighing feed-bin and then the materials in the weighing feed-bin are conveyed into the vertical mill by a feeding machine. The speed of the feeding machine is adjusted to enable a flow of materials entering the vertical mill to be consistent with the flow of materials entering the feed-bin from the belt conveyor, maintaining a material level of 40%-60% in the feed-bin. By utilizing accumulating and flowing of materials on the feeding machine, outside air is isolated from entering and uniform-speed feeding of materials and air locking are realized. The feeding apparatus is reasonable in structure design, simple in process flow, reliable in usage, convenient for maintenance, and economical on time, electricity, manpower and energy.
Description
Technical field
The present invention relates to new type nonaqueous cement clinker production technology and equipment thereof, relate in particular to a kind of Vertical Mill with valveless self-locking wind charging novel process and feeding unit thereof.
Background technology
Vertical Mill integrates material grinding, oven dry, sorting, is important production link in the new type nonaqueous cement grog production process.The general three road air valve devices that adopt of the lock wind charging of Vertical Mill also have minority to adopt the rotation air valve, see from practical operation situation, and all there are many drawbacks such as big, the quick abrasion of leaking out, maintenance workload are big in three road air valves and rotation air valve.
Vertical Mill three road air valve technologies are seen Fig. 1.Under PLC control control, hydraulic ram is cycling switch 1,2,3 road valves in order, charging when valve open, and lock wind when valve closes, the material of sending conveyor here gets in the Vertical Mill through three road air valves.
The main drawback of its existence:
(1) valve in order cycling switch itself just have the tight and problem of leaking out of lock wind, it is more serious to leak out after the valve plate wearing and tearing.Though valve plate use high mangaenese steel high-abrasive material, high velocity air drives material and washes away valve, the valve plate quick abrasion, and failure rate is high, just needs replacing or built-up welding reparation once in general 2 months, and maintenance is inconvenient, and maintenance cost and maintenance workload are big.
(2) because valve lock wind is not tight, particularly lock wind effect poorer inleakage in valve plate wearing and tearing back is big, and a large amount of cold wind get into Vertical Mill from three road valves; Export under the constant situation of total blast volume at Vertical Mill, the hot blast that gets into Vertical Mill reduces the drying materials ability drop; Vertical Mill output descends, and power consumption increases.
(3) outside cold wind gets into Vertical Mill through three road gates, has increased recirculation blower and tail fan load in the system, causes system's power consumption to increase.
(4) because the existence that lock wind feeding unit leaks out in order to guarantee the oven dry of material in the Vertical Mill operational process, must improve Vertical Mill hot blast inlet temperature, therefore reduce the utilization of kiln tail gas heat in supporting afterheat generating system again, reduced generated energy.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of reasonable in design is provided, technical process is simple, uses reliably, and easy to maintenance, the power saving that saves time is laborsaving, and a kind of Vertical Mill of save energy is with valveless self-locking wind charging novel process and feeding unit thereof.
The present invention realizes through following Processes and apparatus:
Vertical Mill charging novel process is an airtight feeding machine and weigh feed bin, and the material that the supplied materials conveyor is sent here at first gets into the feed bin of weighing, and at the uniform velocity sends into Vertical Mill by the material that feeding machine will be weighed in the feed bin; Through adjustment feeding machine speed; The mass flow that gets into Vertical Mill and conveyor are got under the consistent situation of the flow of feed bin, let feed bin remain on 40%～60% material level, utilize the accumulation of material on feeding machine and mobile; Isolated extraneous air gets into, and has realized the at the uniform velocity charging and lock wind of material.
Vertical Mill is with the valveless self-locking wind Vertical Mill feeding unit of valveless self-locking wind charging novel process; Comprise Vertical Mill, supplied materials conveyor; Between the Vertical Mill opening for feed of supplied materials conveyor below self-locking wind Vertical Mill feeding unit is set, self-locking wind Vertical Mill feeding unit is the feeding machine of sealing, and the feeding machine below is provided with discharge port and is flexible coupling and is communicated with the Vertical Mill opening for feed; The charging chain mat machine of roller is set in the feeding machine, and feeding machine top is provided with opening for feed and is flexible coupling and is communicated with the discharge port of the feed bin of weighing.
For better effect: the opening for feed of feeding machine and discharge port are to edge direction.
Weigh feed bin bottom is provided with LOAD CELLS.
Vertical Mill does not have block of valve wind feeding process and is designed to an airtight feeding machine and weighs feed bin; The material that the supplied materials conveyor is sent here at first gets into the feed bin of weighing; Material by feeding machine will be weighed in the feed bin is at the uniform velocity sent into Vertical Mill; Through cooperating of material in feeding machine speed and the feed bin of weighing, utilize material self lock wind principle, realized the charging and lock wind of material.
Compare in the same way, this technology has following advantage:
(1) do not leak out, solved the Vertical Mill air valve door problem of leaking out.
(2) maintenance workload and maintenance cost significantly reduce, and the vertical mill system operation factor significantly improves.
(3) Vertical Mill output improves 5～10%, and grinding pow consumption descends.
(4) recirculation blower in the system and tail fan power consumption descend.
(5) grog firing system thermosteresis reduces, and has improved the effective utilization of kiln tail gas heat in supporting afterheat generating system, and cogeneration station generated energy improves.
In actual motion, produce daily on 2500 tons of clinker production line and move more than a year continuously, the equipment operational excellence, the synthesis energy saving effect is remarkable, has produced favorable economic benefit.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done to detail further.
Fig. 1 is Vertical Mill three road air valve structural representations.
Fig. 2 for cement of the present invention with valveless self-locking wind Vertical Mill feeding unit structural representation.
Embodiment
See Fig. 2, the Vertical Mill feed process is a novel process, is an airtight feeding machine 5 and the feed bin 3 of weighing.The material that supplied materials conveyor 2 is sent here at first gets into the feed bin 3 of weighing, and at the uniform velocity sends into Vertical Mill 1 by will the weigh material of 3 li of feed bins of feeding machine 5.Through adjustment feeding machine 5 speed; The mass flow that gets into Vertical Mill 1 and 2 entering of supplied materials conveyor are weighed under the consistent situation of the flow of feed bin 3; Let the feed bin 3 of weighing remain on 50% material level; Utilize material on feeding machine 5 accumulation and flow, isolated extraneous air gets into, and has realized the at the uniform velocity charging and lock wind of material.
Self-locking wind Vertical Mill feeding unit is set between supplied materials conveyor 2 belows and Vertical Mill 1 opening for feed; Self-locking wind Vertical Mill feeding unit is the feeding machine 5 of sealing; Feeding machine 5 belows are provided with discharge port and are flexible coupling and are communicated with Vertical Mill 1 opening for feed; The charging chain mat machine 4 of roller is set in the feeding machine 5, and feeding machine 5 tops are provided with opening for feed and are flexible coupling and are communicated with the discharge port of the feed bin 3 of weighing, and the opening for feed of feeding machine 5 and discharge port are to edge direction.Raw material is delivered to feed bin 3 opening for feeds of weighing along supplied materials conveyor 2 and falls in the feed bin 3 of weighing; Feed bin 3 bottoms of weighing are provided with LOAD CELLS and carry out material level and show; Raw material is by the opening for feed of discharge port entering feeding machine 5 tops of the feed bin 3 of weighing, and gravitate falls into Vertical Mill 1 opening for feed and got into Vertical Mill 1 under 4 transmissions of charging chain mat machine.
Through adjustment feeding machine 5 speed, make under the mass flow that gets into Vertical Mill 1 situation consistent with the flow of conveyor 2 entering feed bins 3, let feed bin 3 remain on 40～60% material level and all can.
Claims (4)
1. a Vertical Mill is with valveless self-locking wind charging novel process; It is characterized in that: Vertical Mill charging novel process is an airtight feeding machine (5) and the feed bin of weighing (3), and the material that supplied materials conveyor (2) is sent here at first gets into the feed bin of weighing (3), at the uniform velocity sends into Vertical Mill (1) by will the weigh material of feed bin (3) lining of feeding machine (5); Through adjustment feeding machine (5) speed; The mass flow that gets into Vertical Mill (1) and supplied materials conveyor (2) are got under the consistent situation of the flow of the feed bin (3) of weighing, let the feed bin (3) of weighing remain on 40%～60% material level, utilize the accumulation of material on feeding machine (5) and mobile; Isolated extraneous air gets into, and has realized the at the uniform velocity charging and lock wind of material.
2. Vertical Mill as claimed in claim 1 is with the valveless self-locking wind Vertical Mill feeding unit of valveless self-locking wind charging novel process; Comprise Vertical Mill, supplied materials conveyor; It is characterized in that: between Vertical Mill (1) opening for feed of supplied materials conveyor (2) below self-locking wind Vertical Mill feeding unit is set; Self-locking wind Vertical Mill feeding unit is the feeding machine (5) of sealing; Feeding machine (5) below is provided with discharge port and is flexible coupling and is communicated with Vertical Mill (1) opening for feed, and the charging chain mat machine (4) of roller is set in the feeding machine (5), and feeding machine (5) top is provided with opening for feed and is flexible coupling and is communicated with the discharge port of feed bin (3) of weighing.
3. valveless self-locking wind Vertical Mill feeding unit as claimed in claim 2 is characterized in that: the opening for feed of feeding machine (5) and discharge port are to edge direction.
4. valveless self-locking wind Vertical Mill feeding unit as claimed in claim 2 is characterized in that: the feed bin of weighing (3) bottom is provided with LOAD CELLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087758XA CN102730998A (en) | 2011-04-08 | 2011-04-08 | Novel valveless auto air-blocking feeding technology for vertical mill and feeding apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087758XA CN102730998A (en) | 2011-04-08 | 2011-04-08 | Novel valveless auto air-blocking feeding technology for vertical mill and feeding apparatus thereof |
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| CN102730998A true CN102730998A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110087758XA Pending CN102730998A (en) | 2011-04-08 | 2011-04-08 | Novel valveless auto air-blocking feeding technology for vertical mill and feeding apparatus thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766946A (en) * | 2016-08-30 | 2017-05-31 | 彭武星 | The dry coke quenching or sintering deposit cooling stove of even distributing wind uniform discharge lock wind |
| CN107442260A (en) * | 2017-08-28 | 2017-12-08 | 孟周强 | A kind of novel vertical mill intelligence airlock |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342364Y (en) * | 2008-12-24 | 2009-11-11 | 于波涛 | Air lock feeder for vertical mill |
-
2011
- 2011-04-08 CN CN201110087758XA patent/CN102730998A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342364Y (en) * | 2008-12-24 | 2009-11-11 | 于波涛 | Air lock feeder for vertical mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766946A (en) * | 2016-08-30 | 2017-05-31 | 彭武星 | The dry coke quenching or sintering deposit cooling stove of even distributing wind uniform discharge lock wind |
| CN107442260A (en) * | 2017-08-28 | 2017-12-08 | 孟周强 | A kind of novel vertical mill intelligence airlock |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |