CN2355805Y - Airlock feeder for vertical mill - Google Patents
Airlock feeder for vertical mill Download PDFInfo
- Publication number
- CN2355805Y CN2355805Y CN 99203231 CN99203231U CN2355805Y CN 2355805 Y CN2355805 Y CN 2355805Y CN 99203231 CN99203231 CN 99203231 CN 99203231 U CN99203231 U CN 99203231U CN 2355805 Y CN2355805 Y CN 2355805Y
- Authority
- CN
- China
- Prior art keywords
- feeding device
- vertical grinder
- tremie pipe
- mill
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an airlock feeding device for a vertical mill. A hoisting machine is utilized to send materials to a material bin, the materials are sent to a charging pipe by an airlock feeder, and the materials are sent to a milling disk of the vertical mill; by making use of working process of the mill, in a pole-strength negative-pressure system, the materials can be naturally piled up to form a material column; thereby, the resistance can be generated to resist the airflow, and the airlock action is realized. When the utility model is adopted, an original airlock feeder is not used, and the utility model is provided with a simple airlock feeding device 6 of a charging hole and a slag removing hole. When the utility model is used, after the materials of the material bin are metered, the materials are directly sent to the charging hole of the mill, and an opening square charging pipe of the inner part of the original vertical mill is changed to a closed circular charging pipe 2, the airlock feeding device is connected and fixed to the charging hole and the slag removing hole of the mill by flanges 8, and a speed regulating motor can be arranged at the slag removing hole. The utility model has the advantages that the integrative performance can be improved, the production capacity and the quality can be improved, and the cost of the complete machine can be decreased.
Description
The utility model relates to the equipment of fragmentation, abrasive dust or pulverizing, a kind of lock feeding device of vertical grinder.
Vertical grinder is a kind of energy-efficient oven dry milling equipment of holding concurrently, and it is applicable to building materials, metallurgy, chemical industry, power industry.Medium-hard materials such as pulverizing cement raw material, coal, coke, gypsum, barite, calcite, kaolin, rock phosphate in powder can also be used for the pre-grinding or the whole grinding of clinker.
The vertical grinder collection is in small, broken bits, oven dry, grinding, select powder, be transmitted as one, and material is delivered to feed bin through lifting means, after metering, again through the lock feeding machine by carrier pipe, deliver in the grinding machine and mill.The action principle of lock feeding machine is: motor output shaft drives gyroscope wheel, realizes feeding.Lock wind is realized in the slit that utilization is dwindled between housing and the impeller.The defective of its existence is: because between the blade, spacing is big, lock wind effect is bad, causes and leaks out, and causes its mill efficiency, and the oven dry thermal efficiency descends; Flow velocity changes in the mill, destroys stream field boundary distribution curve, causes grinding machine ground prod output and quality to reduce; And, higher because of lock feeding machine cost, be worth about 200,000, make vertical grinder complete machine cost also improve many.
The purpose of this utility model provides a kind of lock feeding device of vertical grinder, saves the lock feeding machine part in the grinder system, improves the mill efficiency of grinding machine, and the output of drying efficiency and ground prod and quality reduce the complete machine cost.
The lock feeding device of described vertical grinder, be to utilize in the grinding machine course of work in extremely strong negative pressure system, material is piled up the resistance enforcement lock wind that " stock column " formation produces air-flow naturally, and add and put with simple charging aperture and slag notch lock feeding device 6, the material of feed bin after metering, by circular tremie pipe 2, directly lead to the grinding machine feed opening, the uncovered square tremie pipe of former vertical grinder inside, change the circular tremie pipe 2 of sealing into, with flange 8 lock feeding device is fastened on grinding machine charging aperture place, the center of circle of vertical grinder mill is aimed in the discharge end center of circle, and the discharge end of tremie pipe is looked the size of the granularity of blanking amount apart from the height of card material, and an adjustable sleeve pipe 10 is set, sleeve pipe adopts bolt 9 to be fastened on the discharge nozzle outer wall, also is provided with adjustable speed motor at the slag notch of vertical grinder.
The lock wind of the described vertical grinder materials device of sighing, circular tremie pipe 2 with a sealing, inclination tremie pipe 2 floor projection pipes in sealing are made a chute 7 through the axis direction weldering of center, identical with tremie pipe, slide down along the chute direction to guarantee blanking, circular casing that diameter is bigger than its outlet diameter with the sealing pipe is concentricity of the system of welding again in the bottom of chute, this is uniform collet 11, adjustable sleeve pipe 10, be provided with lifting connecting rod 12, lock feeding device adopts flange 8 to be fixed on the charging aperture and the slag notch place of vertical grinder.
The slag notch place of the lock feeding device of described vertical grinder, adopt flange connection to connect a tremie pipe, and at conveying equipment that conveying capacity equates with the scum amount of tremie pipe exit installation, its conveying equipment adopts buncher, when scum amount size variation, the size that can change motor speed adjustment conveying capacity adapts with it, can make form in the scum pipe one have certain altitude " stock column ", because of the resistance of its formation negative pressure in the vertical grinder, thus the pinning of leaking out that will be herein.
Owing to adopt as above technical scheme, the utlity model has following advantage:
After the utility model has adopted the lifting material to enter feed bin, directly give grinding machine by tremie pipe, at tremie pipe charging aperture device with lock feeding device, adopt chute and can regulate sleeve pipe and uniform collet, like this can be so that material when the charging aperture of higher position is slid down " being held together ", improve the uniformity that material rolls, can make material in tremie pipe, form " stock column " of certain altitude again, pile up the resistance that is produced naturally wind is pinned thereby made full use of material.In addition, owing to have the vertical grinder sidewall (owing to belong to strong negative pressuren zone, negative pressure is very big, causes the spout place to leak out seriously) of certain altitude to change into the minimum mill center of negative pressure herein from distance discharging opening, and belong to the minimum mill center of lower negative pressure herein, thereby lock wind is effective.
Adopt the utility model lock feeding device, can improve oven dry flue-gas temperature to 100-150 degree, capable of saving fuel 30%, can reduce system's power consumption electric weight 15%; Can improve the output 20-25% of vertical grinder.This vertical grinder system has saved former lock feeding machine equipment, has simplified technological process, saves 7-20 ten thousand yuan.
Because lock wind greatly reduces inleakage later on, then make the load of dust-precipitator, the load of exhaust blower all reduces greatly, and effective power increases, and the dust-collecting efficiency of dust-precipitator is greatly improved, thereby has transformed environment, economic benefit and obvious social benefit.
Below in conjunction with the description of drawings specific embodiment:
Fig. 1 is the charging and the slag-tapping system structural representation of vertical grinder.
Fig. 2 is the lock feeding device structural representation of vertical grinder.
As shown in FIG.: 1-vertical grinder, 2-lock feeding pipe, 3-mill, 4-lock wind scum pipe, 5-throttling conveyer, 6-lock feeding device, 7-blanking chute, 8-mounting flange, 9-regulate bolt, 10-adjustable sleeve pipe, 11-uniform collet, 12-lifting connecting rod.
Material accurately enters the mill center by the feed system input that is called core with elevator and electronic belt through lock feeding device, simultaneously, relies on material to pile up " stock column " that produce naturally in pipe and wind is pinned locked.Material is under action of centrifugal force, in the mill periphery moves into roller-way between grinding roller and the mill, rotation along with mill, material is subjected to the rolling of grinding roller of fixed-site, the material that grinds overflows from the mill edge, be subjected to blowing afloat from nozzle ring high speed thermal current, the material that particle the is bigger mill that falls back again wherein, ground once more, fine powder then is collected, and becomes qualified finished product, a little bigger again material then falls into the mill cavity of resorption from nozzle ring, scrape into the scum mouth through scraper plate, behind scum lock airduct and flow controller, come back to elevator and go into the vertical grinder grinding once more.
Claims (3)
1. the lock feeding device of a vertical grinder, by elevator material is sent into feed bin, send into tremie pipe through the lock feeding machine, send into the grinding machine mill, it is characterized in that: the lock feeding device of described vertical grinder, it is to utilize in the grinding machine course of work in extremely strong negative pressure system, material is piled up the resistance enforcement lock wind that ' stock column ' formation produces air-flow naturally, and add and put with simple charging aperture and slag notch lock feeding device (6), the material of feed bin after metering, by circular tremie pipe (2), directly lead to the grinding machine charging aperture, the uncovered square tremie pipe of former vertical grinder inside changes the circular tremie pipe (2) of sealing into, with flange (8) lock feeding device is fastened on grinding machine charging aperture place, the center of circle of vertical grinder mill is aimed in the discharge end center of circle, and the discharge end of tremie pipe is looked the size of the granularity of blanking amount apart from the height of card material, and setting can be regulated sleeve pipe, be fastened on the discharge nozzle outer wall with bolt (9), also an adjustable speed motor can be set at the slag notch place.
2, the lock feeding device of vertical grinder as claimed in claim 1, it is characterized in that: the lock feeding device of described vertical grinder (6), circular tremie pipe (2) with a sealing, inclination tremie pipe (2) floor projection pipe in sealing is made a chute (7) through the axis direction weldering of center, identical with tremie pipe, slide down along the chute direction to guarantee blanking, circular casing that diameter is bigger than its outlet diameter with the sealing pipe is concentricity of the system of welding again in the bottom of chute, this is uniform collet (11), one adjustable sleeve pipe (10) is set, be provided with lifting connecting rod (12), lock feeding device adopts flange (8) to be fixed on the charging aperture and the slag notch of vertical grinder.
3, the lock feeding device of vertical grinder as claimed in claim 1, it is characterized in that: the slag notch place of described vertical grinder adopts flange connection to connect a tremie pipe, and at conveying equipment that conveying capacity equates with the scum amount of tremie pipe exit installation, its conveying equipment adopts buncher, when scum amount size variation, can change motor speed, the size of adjusting conveying capacity adapts with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203231 CN2355805Y (en) | 1999-02-10 | 1999-02-10 | Airlock feeder for vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203231 CN2355805Y (en) | 1999-02-10 | 1999-02-10 | Airlock feeder for vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2355805Y true CN2355805Y (en) | 1999-12-29 |
Family
ID=33998407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99203231 Expired - Fee Related CN2355805Y (en) | 1999-02-10 | 1999-02-10 | Airlock feeder for vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2355805Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337632A (en) * | 2020-10-16 | 2021-02-09 | 合肥中亚建材装备有限责任公司 | Sealed feeding device for vertical mill |
-
1999
- 1999-02-10 CN CN 99203231 patent/CN2355805Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337632A (en) * | 2020-10-16 | 2021-02-09 | 合肥中亚建材装备有限责任公司 | Sealed feeding device for vertical mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |