CN104925470A - Novel structure and use method of spiral feeder - Google Patents
Novel structure and use method of spiral feeder Download PDFInfo
- Publication number
- CN104925470A CN104925470A CN201410097619.9A CN201410097619A CN104925470A CN 104925470 A CN104925470 A CN 104925470A CN 201410097619 A CN201410097619 A CN 201410097619A CN 104925470 A CN104925470 A CN 104925470A
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- CN
- China
- Prior art keywords
- blade
- spiral
- screw
- shaft
- scraper
- Prior art date
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 3
- 239000000956 alloy Substances 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 230000002035 prolonged effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
The invention relates to the field of alumina production, and a novel structure and a use method of a spiral feeder. The structure is suitable for various spiral feeders to reduce air leakage coefficient, prolong the service life of spiral blades, become smooth in discharging, and facilitate the operation of the whole system. One end of the transmission shaft is provided with a motor, the other end of the transmission shaft is provided with a spiral shaft, the other end of the spiral shaft is provided with a scraper, the outer side of the spiral shaft is provided with a spiral shaft casing, the top of one end, arranged at the transmission shaft, of the spiral shaft casing is provided with a feed inlet, the other end of the spiral shaft casing is provided with a discharge outlet, a sealing device between the discharge outlet and a flue is cancelled, the spiral blade and discharge outlet distance is formed between the spiral blade, arranged at the end of the discharge outlet, of the spiral shaft and the discharge outlet, and the length L of the spiral blade and discharge outlet distance satisfies the condition for forming a stock column. The material is cut by the scraper at the end of the shaft, so that the material can uniformly enter into the flue; and the stock column is formed between the blade and the discharge end to take the effect of air locking.
Description
Technical Field
The invention relates to the field of alumina production, in particular to a novel structure and a use method of a screw feeder, which are suitable for various screw feeders and are used for reducing air leakage coefficients, prolonging the service life of a helical blade, discharging smoothly and facilitating the operation of the whole system.
Background
In the production process of alumina, a screw feeder is one of important devices in a roasting section, and the sealing of the end part of the screw feeder, the service life of a helical blade and the mode of material entering a flue seriously affect the operation condition of the whole system. The prior screw feeder has the problems, if the air leakage is serious, the air in the screw feeder enters a flue (negative pressure operation) or the hot air in the flue enters the screw feeder (positive pressure operation), the service life of the screw blade is short, the materials enter in blocks, and the air in the flue can not bring the materials to enter the next process. In order to solve the above problems, it is necessary to study the corresponding feeder structure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel structure and a using method of a screw feeder, and the screw feeder is beneficial to reducing air leakage coefficient, prolonging the service life of a helical blade, discharging smoothly and operating the whole system.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a novel structure of a screw feeder, the screw feeder comprising: helical blade, scraper, helical blade and discharge gate distance, screw axis, motor, strutting arrangement, transmission shaft, feed inlet, screw axis shell, the concrete structure is as follows:
the transmission shaft is arranged on the supporting device through a bearing seat, one end of the transmission shaft is provided with a motor, the other end of the transmission shaft is a spiral shaft, the other end of the spiral shaft is provided with a scraper, a spiral shaft shell is arranged on the outer side of the spiral shaft, the spiral shaft shell is positioned at the top of one end of the transmission shaft and provided with a feeding hole, the other end of the spiral shaft shell is a discharging hole, and a sealing device is omitted; the spiral blade and the discharge port are formed between the spiral blade at one end of the discharge port and the discharge port of the spiral shaft, and the length L of the distance between the spiral blade and the discharge port meets the requirement of forming a material column.
The novel structure of the screw feeder is characterized in that the scraper is fixed on the end part of the screw shaft through a screw, and the scraper is in a cross shape, a Chinese character 'mi', a straight shape, a blade shape, a double-blade shape, an S shape, a double-S shape, a spiral shape or a double-spiral shape which is vertical to the screw shaft.
According to the novel structure of the screw feeder, the distance between the helical blade and the discharge port is ensured to form a section of material column playing a role in locking air at the position.
The novel structure of the screw feeder coats hard alloy which can prolong the service life of the spiral blade on the surface of the spiral blade.
According to the application method of the novel structure of the screw feeder, the screw blade pushes materials to move forward, when the distance between the screw blade and the discharge port is reached, a material column can be formed by adjusting the feeding speed, and the material column plays a role in locking air; when the helical blade pushes the material to reach the distance between the helical blade and the discharge hole to form a material column, the material column is scattered under the action of the scraper, and the material is prevented from entering the flue in a blocking manner.
According to the application method of the novel structure of the screw feeder, when the screw feeder works, the distance between the screw blade and the discharge port is reserved at the end part of the screw blade and the discharge port, so that material column sealing can be formed, and the air leakage coefficient of the system is reduced.
According to the application method of the novel structure of the screw feeder, the hard alloy is coated on the spiral blade, so that the service life of the spiral blade is prolonged; if the hard alloy is worn, the hard alloy is coated again, so that the replacement and maintenance time of the blade is prolonged.
The invention has the following advantages and beneficial effects:
the novel structure of the screw feeder comprises a shaft, a screw blade, hard alloy, a blade and discharge end distance and a scraper, wherein the scraper at the end part of the shaft is used for cutting materials, so that the materials can uniformly enter a flue; a section of material column can be formed between the blade and the discharge end at intervals to play a role in locking air; the hard alloy is coated on the blade, so that the service life of the blade is prolonged.
Description of the drawings:
fig. 1 is a schematic structural diagram of the screw feeder of the present invention.
Fig. 2 is a cross-sectional view of the front portion of the screw feeder of fig. 1.
In the figure, 1 helical blade, 2 scraper, 3 helical blade and discharge port are separated, 4 helical shaft, 5 hard alloy, 6 motor, 7 support device, 8 transmission shaft and 9 feed port are arranged; 10 screw shaft housing.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, but the scope of the present invention is not limited by the embodiments.
As shown in fig. 1, the novel structure of the screw feeder of the present invention mainly comprises: helical blade 1, scraper 2, helical blade and discharge gate distance 3, screw axis 4, carbide 5, motor 6, strutting arrangement 7, transmission shaft 8, feed inlet 9, screw axis shell 10 etc. specifically the structure as follows:
the transmission shaft 8 is installed on the supporting device 7 through a bearing seat, the motor 6 is installed at one end of the transmission shaft 8, the other end of the transmission shaft 8 is the screw shaft 4, the scraper 2 is installed at the other end of the screw shaft 4, the screw shaft shell 10 is arranged on the outer side of the screw shaft 4, the feed inlet 9 is formed in the position, located at the top of one end of the transmission shaft 8, of the screw shaft shell 10, the other end of the screw shaft shell 10 is the discharge outlet, and a sealing device. The spiral blade 1 that the screw axis 4 is located discharge gate one end forms helical blade and discharge gate distance 3 between the discharge gate, and helical blade satisfies formation material column with the length L of discharge gate distance 3. Wherein,
1. the scraper 2 is fixed on the end part of the spiral shaft 4 through screws, the number of the scrapers and the screws can be determined according to actual conditions, and the scraper 2 is in a cross shape, a Chinese character 'mi', a straight shape, a blade shape, a double-blade shape, an S shape, a double-S shape, a spiral shape or a double-spiral shape and the like which are perpendicular to the spiral shaft 4.
2. Helical blade and discharge gate distance 3 (this clearance size can be adjusted according to actual conditions), can form one section material post in this position, play the lock wind effect.
3. The hard alloy 5 (the thickness can be determined according to actual requirements) is coated on the surface of the helical blade 1, so that the service life of the helical blade is prolonged.
4. The scraper 2 plays a role in scattering materials, so that the materials cannot enter in blocks to influence the operation of the system.
The novel structure of the screw feeder of the invention has the following working process:
the spiral blade 1 pushes the material to move forward, when the material reaches the distance 3 between the spiral blade and the discharge hole, a material column can be formed within a certain time by adjusting the feeding speed, and the material column plays a role in locking air, so that the cost of adding a sealing device can be reduced; when the helical blade 1 pushes the material to reach the helical blade and the discharge hole to form a material column at a distance of 3, the material column is scattered under the action of the scraper 2, and the material is prevented from entering a flue in a blocking manner. Wherein,
when the screw feeder works, a certain distance 3 is reserved between the screw blade 1 and the end part of the discharge port, so that a material column with a certain length can exist, the air leakage coefficient of the system is greatly reduced by adopting material column sealing, and the cost input is reduced.
The hard alloy 5 is coated on the helical blade 1, so that the service life of the helical blade 1 can be prolonged, and if the hard alloy is worn away, the hard alloy can be coated again, so that the replacement and maintenance time of the blade can be prolonged.
The end part of the spiral shaft 4 is provided with the scraper 2, and materials are scattered before entering the flue, so that the materials are prevented from entering the flue in a blocking manner, and the whole system is more stable in operation.
Claims (7)
1. A novel structure of a screw feeder is characterized in that the screw feeder comprises: helical blade, scraper, helical blade and discharge gate distance, screw axis, motor, strutting arrangement, transmission shaft, feed inlet, screw axis shell, the concrete structure is as follows:
the transmission shaft is arranged on the supporting device through a bearing seat, one end of the transmission shaft is provided with a motor, the other end of the transmission shaft is a spiral shaft, the other end of the spiral shaft is provided with a scraper, a spiral shaft shell is arranged on the outer side of the spiral shaft, the spiral shaft shell is positioned at the top of one end of the transmission shaft and provided with a feeding hole, the other end of the spiral shaft shell is a discharging hole, and a sealing device is omitted; the spiral blade and the discharge port are formed between the spiral blade at one end of the discharge port and the discharge port of the spiral shaft, and the length L of the distance between the spiral blade and the discharge port meets the requirement of forming a material column.
2. A novel structure of a screw feeder according to claim 1, characterized in that the scraper is fixed to the end of the screw shaft by a screw, and the scraper is in a cross shape, a cross-shaped, a straight shape, a blade shape, a double-blade shape, an S shape, a double-S shape, a spiral shape or a double-spiral shape perpendicular to the screw shaft.
3. A novel construction of a screw feeder according to claim 1, characterized in that the distance between the screw blade and the discharge opening ensures that a material pillar is formed at this location which has the effect of locking the air.
4. A novel construction of a screw feeder according to claim 1, characterized in that the surface of the screw blade is coated with a hard alloy for extending the life of the screw blade.
5. The use method of the novel structure of the screw feeder according to the claim 1, characterized in that the screw blade pushes the material to advance, when the material reaches the distance between the screw blade and the discharge port, a material column is formed by adjusting the feeding speed, and the material column plays a role of air locking; when the helical blade pushes the material to reach the distance between the helical blade and the discharge hole to form a material column, the material column is scattered under the action of the scraper, and the material is prevented from entering the flue in a blocking manner.
6. A use method of a novel structure of a screw feeder according to claim 5, characterized in that when the screw feeder works, as the distance between the screw blade and the discharge port is reserved between the screw blade and the end part of the discharge port, a material column seal is formed, and the air leakage coefficient of the system is reduced.
7. A method of using a new construction of a screw feeder according to claim 5, characterized in that the service life of the screw blades is extended by coating the blades with cemented carbide; if the hard alloy is worn, the hard alloy is coated again, so that the replacement and maintenance time of the blade is prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097619.9A CN104925470A (en) | 2014-03-18 | 2014-03-18 | Novel structure and use method of spiral feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097619.9A CN104925470A (en) | 2014-03-18 | 2014-03-18 | Novel structure and use method of spiral feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104925470A true CN104925470A (en) | 2015-09-23 |
Family
ID=54112955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410097619.9A Pending CN104925470A (en) | 2014-03-18 | 2014-03-18 | Novel structure and use method of spiral feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104925470A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030107A1 (en) * | 2000-01-03 | 2001-10-18 | Peter Simpson | Auger lock |
| CN102152946A (en) * | 2011-02-16 | 2011-08-17 | 潍坊金丝达实业有限公司 | Solid-liquid screening screw conveyer |
| CN202481699U (en) * | 2012-02-28 | 2012-10-10 | 宜昌新宜运机械有限公司 | Pressure screw conveyer |
| EP2554932A1 (en) * | 2011-08-05 | 2013-02-06 | Andritz AG | Tube reactor for thermal treatment of biomass |
| CN103159012A (en) * | 2011-12-09 | 2013-06-19 | 中粮营养健康研究院有限公司 | Screw feeder |
-
2014
- 2014-03-18 CN CN201410097619.9A patent/CN104925470A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030107A1 (en) * | 2000-01-03 | 2001-10-18 | Peter Simpson | Auger lock |
| CN102152946A (en) * | 2011-02-16 | 2011-08-17 | 潍坊金丝达实业有限公司 | Solid-liquid screening screw conveyer |
| EP2554932A1 (en) * | 2011-08-05 | 2013-02-06 | Andritz AG | Tube reactor for thermal treatment of biomass |
| CN103159012A (en) * | 2011-12-09 | 2013-06-19 | 中粮营养健康研究院有限公司 | Screw feeder |
| CN202481699U (en) * | 2012-02-28 | 2012-10-10 | 宜昌新宜运机械有限公司 | Pressure screw conveyer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |