CN218578696U - A homogenization feeder for dry grinding dry separation machine - Google Patents
A homogenization feeder for dry grinding dry separation machine Download PDFInfo
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- CN218578696U CN218578696U CN202222174170.4U CN202222174170U CN218578696U CN 218578696 U CN218578696 U CN 218578696U CN 202222174170 U CN202222174170 U CN 202222174170U CN 218578696 U CN218578696 U CN 218578696U
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- belt conveyor
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- dry separation
- separation belt
- blowing pipe
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Abstract
The utility model discloses a uniform feeding device for a dry grinding dry separator, which comprises a small belt conveyor, a distributor, a dry separation belt conveyor, a scraping device and a blowing pipe along the material conveying direction; the distributor is obliquely arranged between the small belt conveyor and the dry separation belt conveyor and is used for conveying materials from the small belt conveyor to the dry separation belt conveyor; the material distributor comprises a rectangular groove-shaped material receiving plate, the guide strips are rectangular strips and comprise a plurality of guide strips, the guide strips are radially fixed on the material receiving plate, the guide strips are gathered close to the small belt conveyor and are arranged in an open manner close to the dry separation belt conveyor, and the opening width of the opening end of each guide strip is equal to the length of the blowing opening of the blowing pipe; the scraping device is positioned above the dry separation belt conveyor and is used for scraping materials on the dry separation belt conveyor; the blowing pipe is arranged at the outlet end of the dry separation belt conveyor, one end of the blowing pipe is a plug, the other end of the blowing pipe is an end head, and the end head is connected with an outlet pipe of the gas distribution bag.
Description
Technical Field
The utility model belongs to the technical field of the ore dressing engineering, concretely relates to homogenization feeder for dry grinding dry separation machine. In particular to a feeding method and a homogenizing feeding device when powder materials which are required to enter a core of a dry separator are arranged on a dry separation belt conveyor according to requirements when the materials are dry separated.
Background
The working process of the dry grinding and dry separation equipment comprises the following steps: magnetic materials are unloaded into a raw ore bin, fall onto a raw ore metering belt scale through a star-shaped discharge valve, are fed into a Raymond mill feeding hopper through a bucket elevator, enter a Raymond mill system through an electromagnetic vibration feeder to be subjected to dry milling, and fine ores reaching a proper granularity after the dry milling are loaded into a fine ore bin and are fed into a dry separation belt conveyor system through a small belt conveyor.
When the magnetic powdery material horizontally moves to a zero field intensity region of a magnetic field along with a rubber conveying belt of a dry separation belt conveyor, air with the air speed of 30-40m/s is blown to the surface of the material through a blowing pipe arranged on a machine core, part of nonmagnetic particles mixed in the magnetic agglomerated material are blown out of the material surface, and are taken away along with air flow and then are collected through a collecting cover. Then the materials continuously move along with the belt to enter a magnetic field area of a second group of magnets to be selected again; and through multiple times of air magnetic separation, the magnetic materials in the ore concentrate can be enriched step by step to produce the ore concentrate. The air blown into the material layer by the blowing pipe overflows the material layer and carries a large amount of fine granular materials, and most of fine magnetic particles in the fluidized fine particles flow through the grid along with the air to form a magnetic material with coarse particles, and the magnetic material sinks and is bound by the magnetic system again; the positive pressure gas-solid two-phase flow discharged from the grid enters a negative pressure area, flows through a cloth bag collector, collects the tailing powder, and the discharged clean air is pressurized by an exhaust fan and then is discharged.
The set of dry grinding and dry separation equipment can be used for separating different types of iron-containing minerals such as natural magnetite, magnetized roasted ore, blast furnace gas ash, thermal power plant fly ash, metalized materials and the like. At present, the following problems exist when the dry grinding dry separator carries out dry separation operation: the powder material layer entering the core of the dry separator deviates from the central line of the blowing pipe blowing port of the core, the width of the material layer is inconsistent with the widths of the core and the blowing pipe blowing port, and the thickness of the material surface fluctuates. After the materials enter the core of the dry separator, the air blowing pipe fixed on the core blows out uniform air, the powder material layer deviates to a certain degree in the air blowing area in the core, and the thickness of the material surface is uneven, so that the powder materials are uniformly blown away and correctly separated to generate certain influence.
SUMMERY OF THE UTILITY MODEL
The utility model provides a homogenization feeder for dry grinding dry separation machine, aim at solves above-mentioned technical problem.
Therefore, the utility model adopts the following technical scheme:
a homogenizing feeding device for a dry grinding dry separator comprises a small belt conveyor, a distributor, a dry separation belt conveyor, a scraping device and a blowing pipe along the material conveying direction;
the small belt conveyor and the dry separation belt conveyor are horizontally arranged and are positioned above the dry separation belt conveyor, and the distributor is obliquely arranged between the small belt conveyor and the dry separation belt conveyor and is used for conveying materials from the small belt conveyor to the dry separation belt conveyor; the distributor comprises a rectangular trough-shaped material receiving plate, the upper end of the material receiving plate is connected with the outlet end of the small belt conveyor, and the lower end of the material receiving plate is connected with the inlet of the dry separation belt conveyor; the diversion strips are rectangular strips and comprise a plurality of diversion strips, the diversion strips are radially fixed on the material receiving plate, the diversion strips are gathered at the positions close to the small belt conveyor and are arranged in an open manner at the positions close to the dry separation belt conveyor, and the width of an opening at the open end of each diversion strip is equal to the length of the air blowing opening of the air blowing pipe;
the scraping device is positioned above the dry separation belt conveyor and is used for scraping materials on the dry separation belt conveyor; the scraping device comprises a scraping plate, a scraper and an adjusting mechanism; the adjusting mechanism is fixed on the frame, the scraping plate is horizontally arranged on the adjusting mechanism, the scraper is vertically connected to the scraping plate, and the connecting height of the scraper on the scraping plate is adjustable;
the blowing pipe is arranged at the outlet end of the dry separation belt conveyor, one end of the blowing pipe is a plug, the other end of the blowing pipe is an end head, and the end head is connected with an outlet pipe of the gas distribution bag.
Furthermore, the left end and the right end of the material receiving plate are provided with limiting plates, and the height of each limiting plate is higher than that of each flow guide strip.
Further, the water conservancy diversion strip is close to little belt feeder one end, and outside water conservancy diversion strip protrusion length is longer, and inboard water conservancy diversion strip protrusion length is shorter, and water conservancy diversion strip head end is the U-shaped distribution.
The beneficial effects of the utility model reside in that:
1. the utility model discloses among the homogenization feeder, receive the regional below that the material strikeed at the flitch that connects of tripper, install a plurality of water conservancy diversion strips. The diversion strips divide a part of the intercepted material which originally directly falls vertically near the center of the material impact area to two sides, and the intercepted material slides downwards along the diversion plates in an inclined way and falls on the conveying belt of the dry separation belt conveyor, so that the width expansion of the material layer is realized;
2. the width of the distributor of the utility model is equal to the width of the blowing port of the blowing pipe on the core of the dry separator, and the width of the material layer restrained by the limiting plate is not more than the width of the blowing port of the blowing pipe on the core of the dry separator;
3. the utility model can ensure that the width of the powder material layer entering the dry separator is aligned with the width of the core of the dry separator, and the width of the powder material layer is equal to the width of the blowing port of the blowing pipe of the core of the dry separator;
4. the utility model can ensure that the powder material layer entering the dry separator is equal to the set value;
5. the utility model discloses can realize that the magnetism powder material receives the air in dry separation machine core and evenly jets the effect best to improve magnetism powder material and select separately the effect.
Drawings
Fig. 1 is a front view of the blow pipe of the present invention;
fig. 2 is a schematic structural view of the blow pipe of the present invention;
FIG. 3 is a front view of the material receiving plate of the present invention;
FIG. 4 is a schematic structural view of the receiving plate of the present invention;
fig. 5 is a schematic structural view of the scraping device of the present invention;
FIG. 6 is a front view of the structure of the present invention;
fig. 7 is a schematic structural diagram of the present invention;
in the figure: 1-a blowpipe; 2-an air blowing port; 3-a machine core; 4-plug; 5-a distributor; 6-material receiving plate; 7-flow guide strips; 8-a limiting plate; 9-a scraping device; 10-scraping plate; 11-a scraper; 12-an adjustment mechanism; 13-small belt conveyor; and 14-dry separation belt conveyor.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 6 and 7, the homogenizing feeding device for the dry grinding dry separator comprises a small belt conveyor 13, a distributor 5, a dry separation belt conveyor 14, a scraping device 9 and a blowpipe 1 along the material conveying direction.
The small belt conveyor 13 and the dry separation belt conveyor 14 are horizontally arranged, the small belt conveyor 13 is positioned above the dry separation belt conveyor 14, and the distributor 5 is obliquely arranged between the small belt conveyor 13 and the dry separation belt conveyor 14 and is used for conveying materials from the small belt conveyor 13 to the dry separation belt conveyor.
As shown in fig. 3 and 4, the distributor 5 comprises a material receiving plate 6 in the shape of a rectangular groove, the upper end of the material receiving plate 6 is connected with the outlet end of a small belt conveyor 13, and the lower end is connected with the inlet of a dry separation belt conveyor 14. The water conservancy diversion strip 7 is rectangular and includes a plurality ofly, and a plurality of water conservancy diversion strips 7 are radially being fixed in on connecing flitch 6, and water conservancy diversion strip 7 is close to little belt feeder 13 department and is gathering together the form, is uncovered dress near dry separation belt feeder 14 department, and the uncovered width of the uncovered one end of water conservancy diversion strip 7 equals the length of the 1 mouth of blowing 1. The left end and the right end of the material receiving plate 6 are also provided with limiting plates 8, and the height of each limiting plate 8 is higher than that of the flow guide strip 7. The diversion strip 7 is close to one end of the small belt conveyor 13, the extension length of the outer diversion strip 7 is long, the extension length of the inner diversion strip 7 is short, the head ends of the diversion strips 7 are distributed in a U shape, and materials can conveniently enter the diversion strips 7 and can be dispersed. When powder materials impact the material receiving plate 6 of the distributor 5, the materials are scattered all around, but fall vertically under the action of gravity, and the materials are generally piled thickly below the center point of the impact of the materials, namely the middle of the material layer on the rubber conveying belt of the dry separation belt conveyor 14 is thick, and the two sides of the material layer are thin. In the invention, a plurality of flow guide strips 7 are arranged below the area of the material receiving plate 6 of the distributor 5 impacted by the materials. The function of the diversion strips 7 is to intercept a part of the originally directly vertically falling material near the center of the material impact area and distribute the intercepted material aside, and the intercepted material slides downwards along the diversion plates in an inclined way and falls on the conveying belt of the dry separation belt conveyor 14, so that the width expansion of the material layer is realized. The distance between the limiting plates 8 is equal to the width of the air blowing port 2 of the air blowing pipe 1 on the dry separator core 3, and when the blanking amount is large, the limiting plates 8 restrain the width of the material layer not to exceed the width of the air blowing port 2 of the air blowing pipe 1 on the dry separator core 3.
As shown in fig. 5, the scraping device 9 is located above the dry separation belt conveyor 14 and is used for scraping materials on the dry separation belt conveyor 14; the scraping device 9 comprises a scraping plate 10, a scraper 11 and an adjusting mechanism 12; the adjusting mechanism 12 is fixed on the frame, the scraping plate 10 is horizontally arranged on the adjusting mechanism 12, the scraper 11 is vertically connected on the scraping plate 10, and the connecting height of the scraper 11 on the scraping plate 10 is adjustable;
as shown in fig. 1 and 2, the blowpipe 1 is arranged at the outlet end of the dry separation belt conveyor 14, one end of the blowpipe 1 is a plug 4, the other end is an end head, and the end head is connected with the outlet pipe of the air distribution bag.
The working principle of the utility model is as follows:
powder materials with qualified granularity ground by a dry grinding system are stored in a powder ore bin, after a star-shaped discharger arranged at a feed opening of the powder ore bin starts to rotate, the powder materials are discharged by the star-shaped discharger and fall on a rubber conveying belt of a small belt conveyor 13 below the star-shaped discharger, and the rubber conveying belt of the small belt conveyor 13 bears the powder materials and advances towards a head wheel of the small belt conveyor 13 and a distributor 5 in front of the head wheel of the small belt conveyor 13.
When the powder material moves to the position of the head wheel of the small belt conveyor 13 along with the rubber conveying belt of the small belt conveyor 13, the powder material leaves the rubber conveying belt of the small belt conveyor 13 and is flushed into the material distributor 5. The guide strips 7 on the distributor 5 distribute the powder materials to limit the width of a material layer formed after the powder materials fall down and ensure that the material layer is uniformly arranged along the width direction of the dry separation belt; the powder material falls on a rubber conveyer belt of a dry separation belt conveyor 14 after passing through a distributor 5, the width of a material layer of the powder material is aligned with the width of a dry separator core 3, and the width of the material layer of the powder material is equal to the width of a blowing port 2 of a blowing pipe 1 of the dry separator core 3.
The powder material falling on the dry separation belt conveyor 14 is carried by the dry separation belt to move towards the dry separation machine core 3, but the material level height of the material layer may not be consistent. A scraping plate 10 device is arranged between the distributor 5 and the core 3 of the dry separator, and the scraping plate 10 device scrapes the material surface. Thus, the powder material charge level entering the core 3 of the dry separator has the same height, and the width of the powder material charge level corresponds to and is aligned with the width of the core 3 of the dry separator. The distributor 5 consists of a material receiving plate 6, a flow guide strip 7 and a limiting plate 8. The scraping device 9 is composed of a scraping plate 10 and an adjusting mechanism 12, the scraping plate 10 is installed on the adjusting mechanism 12, and the height and the scraping angle of the scraping plate 10 can be adjusted. Can guarantee that the width of the bed of material before the powder material gets into dry separator core 3 and dry separator core 3 blowing pipe 1's 2 centering and the width of powder material is the same with 2 width of blowing mouthful, the bed of material keeps even the same thickness and the same with the setting value to realize that the powder material distributes evenly before getting into dry separator core 3, receive wind-force, magnetic action best after getting into core 3, improved dry separation effect.
Claims (3)
1. A homogenizing feeding device for a dry grinding dry separator is characterized by comprising a small belt conveyor, a distributor, a dry separation belt conveyor, a scraping device and a blowing pipe along the material conveying direction;
the small belt conveyor and the dry separation belt conveyor are horizontally arranged and are positioned above the dry separation belt conveyor, and the distributor is obliquely arranged between the small belt conveyor and the dry separation belt conveyor and is used for conveying materials from the small belt conveyor to the dry separation belt conveyor; the distributor comprises a rectangular trough-shaped material receiving plate, the upper end of the material receiving plate is connected with the outlet end of the small belt conveyor, and the lower end of the material receiving plate is connected with the inlet of the dry separation belt conveyor; the diversion strips are rectangular strips and comprise a plurality of diversion strips, the diversion strips are radially fixed on the material receiving plate, the diversion strips are gathered at the positions close to the small belt conveyor and are arranged in an open manner at the positions close to the dry separation belt conveyor, and the width of an opening at the open end of each diversion strip is equal to the length of the air blowing opening of the air blowing pipe;
the scraping device is positioned above the dry separation belt conveyor and is used for scraping materials on the dry separation belt conveyor; the scraping device comprises a scraping plate, a scraper and an adjusting mechanism; the adjusting mechanism is fixed on the frame, the scraping plate is horizontally arranged on the adjusting mechanism, the scraper is vertically connected to the scraping plate, and the connecting height of the scraper on the scraping plate is adjustable;
the blowing pipe is arranged at the outlet end of the dry separation belt conveyor, one end of the blowing pipe is a plug, the other end of the blowing pipe is an end head, and the end head is connected with an outlet pipe of the gas distribution bag.
2. The homogenizing feeding device for the dry grinding and sorting machine according to claim 1, wherein limiting plates are further arranged at the left end and the right end of the material receiving plate, and the heights of the limiting plates are higher than those of the flow guide strips.
3. The homogenizing feeding device for the dry grinding and sorting machine according to claim 1, wherein the flow guide strips are close to one end of the small belt conveyor, the outer flow guide strips are longer in length, the inner flow guide strips are shorter in length, and the head ends of the flow guide strips are distributed in a U shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222174170.4U CN218578696U (en) | 2022-08-18 | 2022-08-18 | A homogenization feeder for dry grinding dry separation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222174170.4U CN218578696U (en) | 2022-08-18 | 2022-08-18 | A homogenization feeder for dry grinding dry separation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218578696U true CN218578696U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222174170.4U Active CN218578696U (en) | 2022-08-18 | 2022-08-18 | A homogenization feeder for dry grinding dry separation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218578696U (en) |
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2022
- 2022-08-18 CN CN202222174170.4U patent/CN218578696U/en active Active
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