CN116812559A - Fluidized material conveying system and process - Google Patents
Fluidized material conveying system and process Download PDFInfo
- Publication number
- CN116812559A CN116812559A CN202310772389.0A CN202310772389A CN116812559A CN 116812559 A CN116812559 A CN 116812559A CN 202310772389 A CN202310772389 A CN 202310772389A CN 116812559 A CN116812559 A CN 116812559A
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- China
- Prior art keywords
- material conveying
- pipe
- fluidized
- compressed air
- venturi
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Classifications
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- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
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- 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
-
- 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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
-
- 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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
-
- 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
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0258—Weight of the article
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
本发明为一种流态化物料输送系统及工艺，属于冶金和矿物加工悬浮流态化焙烧技术领域，包括储料仓、计量秤、下料溜子、流态化给料装置和文丘里；将粉状物料通过从储料仓下方的计量秤计量后送入下料溜子，从下料溜子给入所述的流态化给料装置后进入文丘里，完成物料输送。相对于螺旋给料机，流态化物料输送装置结构简单、结构紧凑、占地面积小、投资费用低、体积小、重量轻、投资少、无电器传动单元，流态化给料装置中采用锥型料斗+缩径管的设计以形成料封，防止过多的空气进入负压系统造成短路，在工业生产中，可以大大提高生产效率，降低成本。
The invention is a fluidized material conveying system and process, which belongs to the technical field of suspended fluidized roasting in metallurgy and mineral processing. It includes a storage bin, a weighing scale, a feeding slide, a fluidized feeding device and a venturi; The powdery material is measured from the weighing scale below the storage bin and then sent to the discharge slide. From the discharge slide, it is fed into the fluidized feeding device and then enters the venturi to complete the material transportation. Compared with the screw feeder, the fluidized material conveying device has a simple structure, compact structure, small footprint, low investment cost, small size, light weight, low investment, and no electrical transmission unit. The fluidized material conveying device adopts The design of the tapered hopper + reducing tube forms a material seal to prevent excessive air from entering the negative pressure system and causing a short circuit. In industrial production, it can greatly improve production efficiency and reduce costs.
Description
Technical Field
The invention belongs to the technical field of suspension fluidization roasting in metallurgy and mineral processing, and particularly relates to a fluidized material conveying system and a fluidized material conveying process.
Background
The screw feeder is a common conveying device and is widely applied to conveying granular materials such as coal powder, mineral powder, dust and the like in industries such as power plants, mines, metallurgy, dust removal, cement and the like. The main components of the screw feeder comprise a feed inlet, a screw blade, a discharge outlet, a transmission device and the like. When the material gets into helical blade from the feed inlet, helical blade can advance the material, promotes the material simultaneously upwards, finally carries the discharge gate with the material. The rotation speed and the rotation direction of the helical blade can be controlled by a transmission device, and the conventional method is mainly used for transporting bulk solid materials in the field of suspension magnetization roasting of aluminum oxide and refractory iron ores.
The screw feeder has the advantages of large conveying capacity, adjustable conveying speed and the like. Meanwhile, the device has the advantages that the device is high in service life, and particularly has the advantages that the structure of the spiral blade is complex, the situation of blockage and blocking easily occurs, regular maintenance is needed, the spiral blade is in friction contact with the powder mineral materials, abrasion of the spiral blade is quick, the service life is short, the particle size of the metallurgical ore dressing system is relatively thick, the stacking density is high, the spiral blade is extremely easy to abrade when iron-containing mineral powder with high hardness is conveyed, and the equipment maintenance cost is high. In addition, the screw feeder is subjected to custom design supervision (for example, stainless steel is adopted to convey easily corroded materials or special screw blades are adopted to convey granular materials with higher hardness) according to the properties of the materials and conveying requirements, and frequency conversion adjustment and conveying are mostly needed, so that investment and construction costs are higher.
Disclosure of Invention
Aiming at the defects of a feeding device of a suspension magnetizing roasting furnace, the invention provides a fluidized material conveying system and a fluidized material conveying process.
A fluidized material conveying system comprises a storage bin, a metering scale, a discharging chute, a fluidized feeding device and a venturi; the fluidization feeding device comprises a conical hopper and a reducing pipe unit, a blanking pipe and a pipeline compressed air fluidization unit.
Further, the storage bin, the weighing scale, the blanking slide carriage, the conical hopper and the reducing pipe unit are sequentially connected, the conical hopper and the reducing pipe unit are connected with the pipeline compressed air fluidization unit through a blanking pipe, and the pipeline compressed air fluidization unit at the tail end of the discharging of the blanking pipe is connected with the Venturi.
Further, the fluidization feeding device comprises a conical hopper and a reducing pipe unit, and adopts the design of the conical hopper and the reducing pipe to form a material seal so as to prevent excessive air from entering a negative pressure system to cause short circuit.
Further, the angle of the conical hopper relative to the horizontal direction is not smaller than 70 degrees, and the diameter reducing pipe is vertically arranged at 90 degrees relative to the horizontal direction.
Further, the blanking pipe and the horizontal direction form an angle of not less than 60 degrees, the blanking pipe is configured to enter the venturi, and the large angle can ensure that materials smoothly, continuously and stably fall into the venturi through dead weight.
Further, the pipeline compressed air fluidization unit consists of a plurality of rows of compressed air pipes, compressed air pipes perpendicular to the blanking pipe are arranged at the cutting-in venturi position of the blanking pipe, the blanking pipe is arranged in the range of 180-degree semicircle of a lower semicircle with more axis materials in the range of cutting-in venturi along the upper edge and the lower edge and perpendicular to the blanking pipe, the radially arranged compressed air pipes are arranged at intervals of 45 degrees, the diameter of each compressed air pipe is DN15, and the pressure is not lower than 0.6MP; the compressed air of multirow layer will have the material of certain moisture evenly to throw into venturi, carries the material to get into next process under the effect of negative pressure preheating flue gas, thereby avoid a large amount of materials to concentrate along the pipe wall inboard and fall into venturi and cause blanking and flue to stop up and lead to the system to shut down.
Further, the compressed air required by the fluidization feeding device is supplied by a compressed air pipe in the region of the suspension magnetization roasting furnace.
Further, 304 stainless steel pipes are adopted for the blanking pipe and the reducing pipe.
The fluidized material conveying process adopts the fluidized material conveying device, and the concrete process is as follows:
the powder material is fed into the blanking slide through the weighing scale below the storage bin, and fed into the fluidization feeding device from the blanking slide into the venturi to finish material conveying.
Further, the moisture of the powdery material is less than 11%, and the granularity is less than 1mm.
The invention has the beneficial effects that:
compared with a screw feeder, the fluidized material conveying device has the advantages of simple structure, compact structure, small occupied area, low investment cost, small volume, light weight, low investment and no electric transmission unit, and the fluidized material conveying device adopts the design of the conical hopper and the reducing pipe to form a material seal so as to prevent excessive air from entering a negative pressure system to cause short circuit, so that the production efficiency can be greatly improved and the cost is reduced in industrial production.
Drawings
FIG. 1 is a schematic view of a fluidized material conveying apparatus and a flow path thereof according to the present invention;
FIG. 2 is a detailed view of a conical hopper+reducer unit in a fluidized material conveying apparatus in accordance with the present invention;
FIG. 3 is a detailed view of the compressed air pipe in the fluidized material conveying device of the present invention;
wherein: 1. the device comprises a storage bin, a weighing scale, a discharging slide carriage, a conical hopper and a reducing pipe unit, a pipeline compressed air fluidization unit and a venturi.
Detailed Description
In order that the invention may be readily understood, several embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, but instead is provided for the purpose of providing a more thorough and complete disclosure of the invention.
The fluidized material conveying system comprises a storage bin (1), a metering scale (2), a blanking slide carriage (3), a fluidized feeding device and a venturi (6), as shown in figure 1;
the fluidization feeding device comprises a conical hopper and a reducing pipe unit (4), a blanking pipe and a pipeline compressed air fluidization unit (5);
the device comprises a storage bin (1), a weighing scale (2), a discharging chute (3), a conical hopper and a reducing pipe unit (4), wherein the conical hopper and the reducing pipe unit (4) are sequentially connected, the conical hopper and the reducing pipe unit (4) are connected with a pipeline compressed air fluidization unit (5) through a discharging pipe, and the pipeline compressed air fluidization unit (5) at the discharging tail end of the discharging pipe is connected with a venturi (6); the relative roughness of the blanking pipe and the reducing pipe accords with the relevant standard, and the blanking pipe and the reducing pipe are required to be smooth;
the fluidization feeding device comprises a conical hopper and a reducing pipe unit (4), and adopts the design of the conical hopper and the reducing pipe to form a material seal so as to prevent excessive air from entering a negative pressure system to cause short circuit.
As shown in fig. 2, the angle of the conical hopper relative to the horizontal direction is not less than 70 degrees, and the diameter reducing pipe is vertically arranged at 90 degrees relative to the horizontal direction.
The blanking pipe and the horizontal direction form an angle of not less than 60 degrees, the blanking pipe is configured to enter the venturi (6), and the large angle can ensure that materials smoothly, continuously and stably fall into the venturi (6) through dead weight.
As shown in fig. 3, the pipeline compressed air fluidization unit (5) is composed of a plurality of rows of compressed air pipes, the compressed air pipes perpendicular to the blanking pipe are arranged at the position where the blanking pipe cuts into the venturi (6), the blanking pipe is arranged in the range of 180-degree semicircle along the lower semicircle with more axis materials in the range of cutting into the venturi (6) along the upper edge and the lower edge and perpendicular to the blanking pipe, the compressed air pipes are radially arranged at intervals of 45 degrees, the diameter of the compressed air pipes is DN15, the pressure is not lower than 0.6MPa, the compressed air in a plurality of rows of layers uniformly throws materials with certain moisture into the venturi (6), the materials are carried into the next procedure under the action of negative pressure preheating smoke, and the phenomenon that a large amount of materials fall into the venturi (6) in a concentrated manner along the inner side of the pipe wall to cause blanking and flue blockage to cause system shutdown is avoided.
The compressed air required by the fluidization feeding device is supplied by a compressed air pipe in the area of the suspension magnetization roasting furnace.
And the blanking pipe and the reducing pipe are 304 stainless steel pipes.
The fluidized material conveying process adopts the fluidized material conveying device, and the concrete process is as follows:
powder materials with water content less than 11% and granularity less than 1m are metered by a metering scale (2) below a storage bin (1) and then fed into a blanking slide (3), and fed into the fluidization feeding device from the blanking slide and then enter a venturi (6) to finish material conveying.
Claims (10)
1. The fluidized material conveying system is characterized by comprising a storage bin, a metering scale, a blanking chute, a fluidized feeding device and a venturi;
the fluidization feeding device comprises a conical hopper and a reducing pipe unit, a blanking pipe and a pipeline compressed air fluidization unit.
2. The fluidized material conveying system according to claim 1, wherein the storage bin, the weighing scale, the blanking slide, the conical hopper and the reducing pipe unit are sequentially connected, the conical hopper and the reducing pipe unit are connected with the pipeline compressed air fluidization unit through a blanking pipe, and the pipeline compressed air fluidization unit at the discharging tail end of the blanking pipe is connected with the venturi.
3. A fluidized material conveying system according to claim 1, wherein the fluidized feeding means comprises a conical hopper and a reducing pipe unit, and the conical hopper and the reducing pipe are designed to form a seal.
4. A fluidized material conveying system according to claim 3, wherein the angle of the cone hopper with respect to the horizontal is not less than 70 °, and the reducing pipe is disposed vertically by 90 ° with respect to the horizontal.
5. A fluidized material conveying system according to claim 1, wherein the discharge pipe is disposed at an angle of not less than 60 ° to the horizontal into the venturi.
6. A fluidized material conveying system according to claim 1, wherein the pipeline compressed air fluidization unit is composed of a plurality of rows of compressed air pipes, compressed air pipes perpendicular to the blanking pipe are arranged at the position where the blanking pipe cuts into the venturi, the blanking pipe cuts into the venturi along the upper edge and the lower edge and is perpendicular to the blanking pipe, radially arranged compressed air pipes are arranged at intervals of 45 degrees in a range of 180 degrees semicircle of a lower semicircle with more axis materials along the axis materials, the pipe diameter of the compressed air pipes is DN15, and the pressure is not lower than 0.6MPa.
7. A fluidized material conveying system according to claim 1, wherein the compressed air required for the fluidization feed apparatus is supplied from a compressed air pipe in the region of the suspension magnetization roasting furnace.
8. A fluidized material conveying system according to claim 1, wherein 304 stainless steel pipes are adopted for the blanking pipe and the reducing pipe.
9. A fluidized material conveying process, which adopts the fluidized material conveying device according to any one of claims 1 to 8, and comprises the following steps:
the powder material is fed into the blanking slide through the weighing scale below the storage bin, and fed into the fluidization feeding device from the blanking slide into the venturi to finish material conveying.
10. A fluidized material conveying process according to claim 9, wherein the powder material has a moisture content of < 11% and a particle size of < 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310772389.0A CN116812559A (en) | 2023-06-28 | 2023-06-28 | Fluidized material conveying system and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310772389.0A CN116812559A (en) | 2023-06-28 | 2023-06-28 | Fluidized material conveying system and process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116812559A true CN116812559A (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310772389.0A Pending CN116812559A (en) | 2023-06-28 | 2023-06-28 | Fluidized material conveying system and process |
Country Status (1)
| Country | Link |
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| CN (1) | CN116812559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118556638A (en) * | 2024-08-03 | 2024-08-30 | 广东省农业科学院设施农业研究所 | A working method for preventing blocking of feeding system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988357B1 (en) * | 2010-07-06 | 2010-10-18 | 주식회사 비티에스이엔지 | A system for transferring powder using venturi ejector |
| CN201619882U (en) * | 2010-03-12 | 2010-11-03 | 攀钢集团钢铁钒钛股份有限公司 | Fluidized conveying equipment |
| CN209193074U (en) * | 2018-10-16 | 2019-08-02 | 广东汇嵘绿色能源股份有限公司 | A kind of blowing feeding mechanism |
| CN112061788A (en) * | 2020-09-05 | 2020-12-11 | 汉瑞普泽粉粒体技术（上海）有限公司 | High-precision micro-weighing, feeding and conveying system |
| CN114476689A (en) * | 2022-03-09 | 2022-05-13 | 河南丰博自动化有限公司 | Equipment for mixing and conveying gas and powder |
-
2023
- 2023-06-28 CN CN202310772389.0A patent/CN116812559A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201619882U (en) * | 2010-03-12 | 2010-11-03 | 攀钢集团钢铁钒钛股份有限公司 | Fluidized conveying equipment |
| KR100988357B1 (en) * | 2010-07-06 | 2010-10-18 | 주식회사 비티에스이엔지 | A system for transferring powder using venturi ejector |
| CN209193074U (en) * | 2018-10-16 | 2019-08-02 | 广东汇嵘绿色能源股份有限公司 | A kind of blowing feeding mechanism |
| CN112061788A (en) * | 2020-09-05 | 2020-12-11 | 汉瑞普泽粉粒体技术（上海）有限公司 | High-precision micro-weighing, feeding and conveying system |
| CN114476689A (en) * | 2022-03-09 | 2022-05-13 | 河南丰博自动化有限公司 | Equipment for mixing and conveying gas and powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118556638A (en) * | 2024-08-03 | 2024-08-30 | 广东省农业科学院设施农业研究所 | A working method for preventing blocking of feeding system |
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