CN206037641U - System is smashed in tailing stoving - Google Patents
System is smashed in tailing stoving Download PDFInfo
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- CN206037641U CN206037641U CN201621051033.XU CN201621051033U CN206037641U CN 206037641 U CN206037641 U CN 206037641U CN 201621051033 U CN201621051033 U CN 201621051033U CN 206037641 U CN206037641 U CN 206037641U
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- heater
- mine tailing
- dries pulverizing
- rotary kiln
- pulverizing system
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Abstract
The utility model provides a system is smashed in tailing stoving, includes feed arrangement, rotary kiln, discharge device, draught fan and gas cleaning system, the rotary kiln front end is equipped with feed hopper and gas vent, and the tail end is equipped with the discharge gate, feed arrangement with feed hopper is connected, the draught fan with the gas vent is connected, rotary kiln outside -in includes shell, heating chamber and rotary furnace in proper order, inside preheating zone and the effective warm area of heating of divideing into of rotary furnace, rotary furnace's inner wall is equipped with 12 guide plates in the preheating zone section, a butt welding in the rotary furnace inner wall of these 12 guide plates, and the centre of a circle contained angle between the two adjacent guide plates is 30, it is equipped with the three -section and raises material district to heat effective warm area anterior segment, rotary furnace's inner wall is raised the material district every section and all is equipped with 4 lifting blades. System is smashed in tailing stoving can realize the comminuted of tailing stoving in -process, and the energy consumption is low, has reduced manufacturing cost.
Description
Technical field
This utility model is related to reclaiming industrial sludge field, more particularly to a kind of mine tailing dries pulverizing system.
Background technology
Non-ferrous metal is important basic raw material, is widely used in national economy every profession and trade.China's nonferrous metals ore
The characteristics of producing resource is that many little ore deposits, lean ore, mineral intergrowth are more, produces substantial amounts of solid waste mine tailing during selecting and purchasing.According to system
Meter, mine often exploit the Ore of 1t, will produce 0.42t barren rocks, 0.52t mine tailings, 0.04t melting waste slags, China's mine discharge
Tailing heap storage occupy a large amount of soils up to more than 50 hundred million tons, and increased with 2～300,000,000 tons of speed every year.There iing coloured gold
While category rapid industrial development, problems faced is also quite projected, and especially nonferrous metal mine resource exhaustion and has coloured gold
The control of category mining process environment pollution, is two important topics of nonferrous metal property Faced In Sustainable Development.
Show according to the study, contain various valuable metal elements in mine tailing, be worth with certain recycling, and its synthesis
The present situation of metal mine resource exhaustion can be effectively alleviated in recycling, realize the sustainable use of mine resources.On the other hand,
By the comprehensive reutilization of resource of tailings, Mine Solid Wastes discharge capacity can be reduced, so as to effectively control mine environment
Pollution problem.Lack the systematic study for administering, technology theoretical with comprehensive utilization of resources and equipment to tailings environmental-friendly at present, cause
Serious environmental pollution and the wasting of resources.Therefore carry out tailings environmental-friendly and administer research with comprehensive utilization of resources, to mine can
Sustainable development has important practical significance.
The drying and crushing of mine tailing are the necessary handling process of Pb-Zn tailings resource reclaim.Mine tailing still contains Jing after dehydration
15%～30% moisture, as mine tailing granularity is less, proportion is relatively low, after processing using conventional stoving process, often occurs drying
Dry two subclusterings, that is, the mine tailing after drying form the solid of the greater particle size such as block, spherical, need further break process.Mesh
Front conventional mineral crumbling method includes the modes such as jaw crushing, roller pair breaking, blade type be broken, these dry-type pulverizing modes
Nodulizing thing can effectively be resolved into.But the conglomeration being belonging to due to tailings pellets in drying course, is broken using jaw crushing, to roller
During the conventional crumbling method such as broken, blade type is broken, dust is crushed greatly, cause poor working environment, the problems such as air pollution is serious.
And as comminution energy conssumption is higher, add broken energy consumption of gathering dust, will greatly increase mine tailing pre-treatment energy consumption cost, so as to reduce tail
Ore resources recovery value.
Utility model content
This utility model is the shortcoming for overcoming prior art in deficiency, there is provided a kind of mine tailing dries pulverizing system, which is not
The crushing material for being only capable of realizing in mine tailing drying course, and energy consumption is low, reduces production cost.
In order to achieve the above object, this utility model is employed the following technical solutions：A kind of mine tailing dries pulverizing system, including
Feed arrangement, rotary kiln, discharge device, air-introduced machine and flue gas purification system；The rotary kiln front end is provided with loading hopper and row
QI KOU, tail end are provided with discharging opening；The feed arrangement is connected with the loading hopper, the air-introduced machine and the air vent phase
Connection；The rotary kiln ecto-entad includes shell, heating chamber and revolution body of heater successively；The rotary furnace internal body portion is preheating
Area and the effective warm area of heating；The inwall of the revolution body of heater is provided with 12 pieces of deflectors in pre-heat section；The one of 12 pieces of deflectors
The center of circle angle that end is welded between revolution inboard wall of furnace body, and adjacent two deflector is 30 °；The deflector includes diversion division, folding
Turn of bilge and cutting part, the bending part are in 145 ° of welded corner joints with diversion division；The cutting part is in the bending part front end, cutting
Angle is 35 °；The effective warm area leading portion of the heating is provided with three sections of material-flying areas, and the inwall of the revolution body of heater is equal every section of material-flying area
The center of circle angle being provided between 4 pieces of lifting blades, and adjacent two lifting blade is 90 °；The interval two adjacent lifting blades of two sections of liftings it
Between center of circle angle be 30 °；The structure of the lifting blade is identical with the deflector.
Compared to prior art, mine tailing dries pulverizing system of the present utility model calculates right by strict energy-consuming balance
Rotary kiln internal structure is improved, and material is effectively crushed while material drying, and reduce dry flue gas,
The energy loss problem that material drying latent heat brings, improves energy utilization rate, and so as to reduce drying power consumption, reduction is produced into
This.
Further, the revolution body of heater material for carbon steel, body of heater length is 10000mm, and internal diameter is 1000mm, body of heater
Wall thickness 12mm.
Further, the preheating head of district 1200mm in the rotary furnace body, heats the long 6000mm of effective warm area.In preheating zone
The deflector of interior setting can make material be evenly distributed, and the lifting blade for heating effective warm area leading portion setting can prevent putty, and divide
It is excessive that the lifting blade of three sections of settings is also possible to prevent airborne dust.Deflector and lifting blade are equipped with kink and cutting part, in revolution
When body of heater is rotated, cutting part can carry out cutting and grinding to material, it is to avoid two subclusterings of the material in drying course.
Further, the long 1000mm of the deflector, thickness is 4mm；Its diversion division width 200mm, its kink width is
25mm；The long 1500mm of the lifting blade.The deflector is provided with 12 pieces in preheating zone altogether, and material can be made to be distributed in preheating zone
Uniformly, it is easy to subsequent heat to dry.The material-flying area is provided with three sections altogether, in the range of the front 4500mm for heating effective warm area,
Per section is provided with 4 pieces of lifting blades, material in heating process is kicked up repeatedly and is left by lifting blade, improves material and high-temperature flue gas
Contact area and the time, while lifting blade points three sections is arranged, can be prevented effectively from airborne dust excessive.
Further, the heating chamber is provided with resistance wire.By Resistant heating, can effective reducing energy consumption, and just
In temperature control.
Further, heat-insulation layer is provided between the heating chamber and revolution body of heater, which is by alumina brick and ceramic fiber cotton
Build by laying bricks or stones and form.The setting of heat-insulation layer can reduce hot loss of energy, further reducing energy consumption.
Further, the heating chamber is assembled by high alumina ceramic fibre board.The shell of the rotary kiln is with corrosion-resistant
Steel plate Jing flangings are welded, and are preferably made rectangular structure；Heating chamber, heat-insulation layer and revolution body of heater is followed successively by which.Revolution
Body of heater is rotated relative to heating chamber, heat-insulation layer and shell, and its velocity of rotation is 1～5r/min.
Further, the revolution body of heater is inclined from feed end to discharge end, and angle of inclination is 1～5 °.That is, material from compared with
High one end is entered in rotary furnace body.
Preferably, the feed arrangement is screw(-type) feeder, and which is connected with the loading hopper.
Further, the flue gas purification system includes fume collection pipeline, the cloth bag being sequentially connected with the air vent
Cleaner unit and dust flue.Flue gas is entered fume collection pipeline from after air vent extraction by air-introduced machine, cold in fume collection pipeline
But, afterwards in sack cleaner, after dust removal process, dust is discharged to dust flue from sack cleaner bottom dust-exhausting port
In, and periodically removed by valve switch control.
In order to more fully understand and implement, this utility model is described below in conjunction with the accompanying drawings in detail.
Description of the drawings
Fig. 1 is the structural representation of rotary kiln front end described in the utility model
Fig. 2 is the schematic cross-section of rotary kiln described in the utility model
Fig. 3 is the structural representation inside rotary kiln described in the utility model
Fig. 4 is the schematic cross-section of revolution body of heater diversion section described in the utility model
Fig. 5 is the side view of revolution body of heater diversion section described in the utility model
Fig. 6 is the schematic cross-section of deflector described in the utility model and lifting blade
Fig. 7 is the schematic cross-section of revolution body of heater material flying section described in the utility model
Fig. 8 is the side view of revolution body of heater material flying section described in the utility model
Specific embodiment
A kind of mine tailing dries pulverizing system of the present utility model, including feed arrangement, rotary kiln, discharge device, air-introduced machine
And flue gas purification system.The feed arrangement is connected with rotary kiln charging aperture, and the discharge device is connected with the discharging opening of rotary kiln
Connect, the air-introduced machine is connected with the air vent of rotary kiln, the flue gas purification system is connected with the air-introduced machine.Crushing to be dried
Mine tailing by feed arrangement enter rotary kiln in, through rotary kiln drying and crush after by discharge device discharge；Revolution
Inside kiln, the high-temperature flue gas with dust are purified into flue gas purification system by air-introduced machine.
Specifically, please refer to Fig. 1～3, wherein, Fig. 1 is that the structure of rotary kiln front end described in the utility model is shown
It is intended to, Fig. 2 is the schematic cross-section of rotary kiln described in the utility model, and Fig. 3 is inside rotary kiln described in the utility model
Structural representation.Rotary kiln front end in the present embodiment is provided with loading hopper 100 and air vent 200, loading hopper 100 with enter
Material device connection, material are entered inside rotary kiln by the loading hopper 100；Air vent 200 is connected with air-introduced machine, in rotary kiln
The high-temperature flue gas in portion are discharged to flue gas purification system by air vent 200 and carry out purified treatment.The rotary kiln tail end is provided with out
Material mouth, which is connected with the discharge device.
Specifically, the rotary kiln ecto-entad includes shell 400, heating chamber 500, heat-insulation layer 700 and rotary furnace successively
Body 600.It is described revolution body of heater 600 can opposite shell 400 rotate, please refer to Fig. 4～8, wherein Fig. 4 is this utility model institute
The schematic cross-section of the revolution body of heater diversion section stated, Fig. 5 are the side views of revolution body of heater diversion section described in the utility model, are schemed
6 is the schematic cross-section of deflector described in the utility model and lifting blade, and Fig. 7 is that revolution body of heater described in the utility model is raised
The schematic cross-section of material section, Fig. 8 are the side views of revolution body of heater material flying section described in the utility model.Inside revolution body of heater 600
Region is divided into preheating zone 610 and the effective warm area 620 of heating, and wherein, 610 sections of preheating zone, the inwall for turning round body of heater 600 is provided with 12
Block deflector 611, one end of 12 pieces of deflectors 611 is welded in be turned round between 600 inwall of body of heater, and adjacent two deflector 611
Center of circle angle is 30 °.In the leading portion for heating effective warm area 620, three sections of material-flying areas 6201,6202 and 6203 are provided with altogether, per section is raised
In material area, the center of circle angle that the inwall of revolution body of heater 600 is provided between 4 pieces of lifting blades 621, and adjacent two lifting blade 621 is
90°.Center of circle angle between the interval two adjacent lifting blades 621 of two sections of liftings is 30 °；As shown in Figures 7 and 8, material-flying area
Four pieces of lifting blades in 6201 are 2. 5. 8.Center of circle angle between adjacent two pieces is 90 °, and the lifting blade in material-flying area 6201
2. with material-flying area 6202 in lifting blade 1. between center of circle angle be 30 °.
Specifically, the structure of the deflector 611 is identical with the structure of the lifting blade 621.By taking deflector 611 as an example,
As shown in fig. 6, deflector 611 includes diversion division 6111, bending part 6112 and cutting part 6113, the bending part 6112 and water conservancy diversion
Portion 6111 is in 145 ° of welded corner joints；The cutting part 6113 is located at 6112 front end of the bending part, and cutting angle is 35 °.By water conservancy diversion
Plate and lifting blade are arranged to this structure, effectively can cut material, it is to avoid two subclusterings in drying course.
Further, revolution 600 material of body of heater for carbon steel, body of heater length is 10000mm, and internal diameter is 1000mm,
Body of heater wall thickness 12mm.610 long 1200mm of preheating zone in the revolution body of heater 600, heats effective 620 long 6000mm of warm area.Institute
611 long 1000mm of deflector is stated, thickness is 4mm；Its diversion division width 200mm, its kink width are 25mm；The lifting blade
621 long 1500mm, its thickness, width are identical with deflector 611.Resistance wire is provided with inside the heating chamber 500, its highest is heated
Temperature is 300 DEG C, and it is 180 DEG C to commonly use temperature.The disposal ability of the revolution body of heater 600 is 400kg/h, and residence time of material is
30min。
Preferably, the shell 400 is cube structure, and which is welded with anti-corrosion steel plate Jing flangings.Heating chamber 500
Assembled using high alumina ceramic fibre board, heat-insulation layer 700 is built by laying bricks or stones using alumina brick and ceramic fiber cotton and is formed.The revolution
Body of heater 600 is inclined from feed end to discharge end, and angle of inclination is 1～5 °.
Preferably, the feed arrangement is screw(-type) feeder, and which is connected with the loading hopper 100.The gas cleaning
System includes fume collection pipeline, sack cleaner and the dust flue being sequentially connected with the air vent 200.Flue gas is by air-introduced machine
Fume collection pipeline is entered after extracting out from air vent 200, is cooled down in fume collection pipeline, afterwards in sack cleaner,
After dust removal process, dust is discharged in dust flue from sack cleaner bottom dust-exhausting port, and periodically clear by valve switch control
Remove.
Illustrate mine tailing dries pulverizing system described in the utility model to different mine tailings below in conjunction with two specific embodiments
The dries pulverizing effect of material.
The process of 1 lead-zinc ore tailings dries pulverizing of embodiment
Carry out drying, crushing experimental study with certain lead-zinc ore tailings, revolution body of heater drying temperature is set to 300 DEG C, divides three
Section heated for controlling temperature, rated power is 120kw.Table 1 is referred to, which is filter pressing drying materials energy consumption testing record sheet.
1 filter pressing drying materials energy consumption testing record sheet of table (energy consumption is dry weight energy consumption)
As can be seen from Table 1, drying and processing amount and drying temperature have considerable influence to drying materials energy consumption.Drying temperature
When spending relatively low, material treatment effeciency is relatively low, and drying temperature is too high, will cause material oxidation in kiln.Jing is determined and is shown, is dried
Drop temperature is 35 DEG C, and drying flue-gas temperature is 40 DEG C, illustrates that material drying and drying flue gas do not cause to dry thermal loss.
From test energy consumption statistic analysis, belt filter press filter pressing drying materials energy consumption is minimum 204.81kw h/t (dry weight), plate
Frame filter pressing material filter pressing drying materials energy consumption is minimum 143.75kw h/t (dry weight), tests energy consumption and Theoretical Calculation energy consumption phase
Closely, illustrate that rotary kiln energy utilization rate described in the utility model is high.
Please refer to table 2, which is revolution kiln drying discharging particle diameter distribution table；Drying condition is：Temperature is 160 DEG C, place
Reason amount is 375kg (weight in wet base)/h.
2 material drying particle diameter distribution table of table
As can be seen from Table 2, Jing after rotary kiln drying and processing, particle diameter only accounts for the 0.32% of total material more than 2.36mm's,
And particle diameter accounts for the 82.2% of total material less than 0.5mm, illustrates the rotary kiln described in the utility model to Pb-Zn tailings material
Crushing effect is good.
Analyzed according to energy-consuming balance and the analysis of material drying particle diameter distribution understands, using rotary kiln described in the utility model
One ton of mine tailing of drying needs energy consumption less than 145kw h, and material drying 99.68% is less than 2.36mm, is suitable to Pb-Zn tailings resource and returns
The further process that receipts are utilized.
The process of 2 bronze medal sulfur ore deposit mine tailing dries pulverizing of embodiment
With certain copper sulfur ore deposit mine tailing research experiment, table 3 is referred to, which is filter pressing drying materials energy consumption testing record sheet.
3 filter pressing drying materials energy consumption testing record sheet of table (energy consumption is dry weight energy consumption)
By table as can be seen that copper sulfur ore deposit mine tailing drying energy consumption is 113.52kw h.
Please refer to table 4, which is to turn round kiln drying discharging particle diameter distribution table, and drying condition is：Temperature is 160 DEG C, place
Reason amount is 375kg (weight in wet base)/h.
4 material drying particle diameter distribution table of table
By table as can be seen that Jing after rotary kiln drying and processing, particle diameter accounts for the 99.44% of total material less than 2.36mm's, says
Bright rotary kiln described in the utility model is good to the crushing effect of copper sulfur ore deposit mine tailing material.
The above is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation should not be regarded
It is that, to restriction of the present utility model, protection domain of the present utility model should be defined by claim limited range.For
For those skilled in the art, in without departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of mine tailing dries pulverizing system, it is characterised in that：Including feed arrangement, rotary kiln, discharge device, air-introduced machine and cigarette
Gas cleaning system；The rotary kiln front end is provided with loading hopper and air vent, and tail end is provided with discharging opening；The feed arrangement and institute
State loading hopper to be connected, the air-introduced machine is connected with the air vent；The rotary kiln ecto-entad successively include shell,
Heating chamber and revolution body of heater；The rotary furnace internal body portion is preheating zone and the effective warm area of heating；The inwall of the revolution body of heater
12 pieces of deflectors are provided with pre-heat section；One end of 12 pieces of deflectors is welded in revolution inboard wall of furnace body, and adjacent two deflector it
Between center of circle angle be 30 °；The deflector includes diversion division, bending part and cutting part, and the bending part with diversion division is in
145 ° of welded corner joints；In the bending part front end, cutting angle is 35 ° to the cutting part；The effective warm area leading portion of the heating sets
The inwall for having three sections of material-flying areas, the revolution body of heater is equipped between 4 pieces of lifting blades, and adjacent two lifting blade every section of material-flying area
Center of circle angle be 90 °；Center of circle angle between the interval two adjacent lifting blades of two sections of liftings is 30 °；The knot of the lifting blade
Structure is identical with the deflector.
2. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The revolution body of heater material for carbon
Steel, body of heater length are 10000mm, and internal diameter is 1000mm, body of heater wall thickness 12mm.
3. mine tailing dries pulverizing system according to claim 2, it is characterised in that：The preheating head of district in the rotary furnace body
1200mm, heats the long 6000mm of effective warm area.
4. mine tailing dries pulverizing system according to claim 3, it is characterised in that：The long 1000mm of the deflector, thickness
For 4mm；Its diversion division width 200mm, its kink width are 25mm；The long 1500mm of the lifting blade.
5. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The heating chamber is provided with resistance
Silk.
6. mine tailing dries pulverizing system according to claim 1, it is characterised in that：Between the heating chamber and revolution body of heater
Heat-insulation layer is provided with, which is built by laying bricks or stones by alumina brick and ceramic fiber cotton and is formed.
7. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The heating chamber is by high alumina ceramic fiber
Plate is assembled.
8. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The revolution body of heater is from feed end to going out
Material end inclines, and angle of inclination is 1～5 °.
9. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The feed arrangement is screw feeder
Machine, which is connected with the loading hopper.
10. mine tailing dries pulverizing system according to claim 1, it is characterised in that：The flue gas purification system include with
Fume collection pipeline, sack cleaner and dust flue that the air vent is sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051033.XU CN206037641U (en) | 2016-09-12 | 2016-09-12 | System is smashed in tailing stoving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051033.XU CN206037641U (en) | 2016-09-12 | 2016-09-12 | System is smashed in tailing stoving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206037641U true CN206037641U (en) | 2017-03-22 |
Family
ID=58300048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621051033.XU Active CN206037641U (en) | 2016-09-12 | 2016-09-12 | System is smashed in tailing stoving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206037641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970105A (en) * | 2020-07-22 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Hazardous waste incineration system and hazardous waste incineration method based on air inlet of lifting plate |
| CN116003107A (en) * | 2022-12-27 | 2023-04-25 | 武汉钢铁集团耐火材料有限责任公司 | Method and equipment for reducing electric smelting magnesia particles of regenerated magnesia carbon bricks |
-
2016
- 2016-09-12 CN CN201621051033.XU patent/CN206037641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970105A (en) * | 2020-07-22 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Hazardous waste incineration system and hazardous waste incineration method based on air inlet of lifting plate |
| CN113970105B (en) * | 2020-07-22 | 2023-06-23 | 中冶长天国际工程有限责任公司 | Dangerous waste incineration system and dangerous waste incineration method based on air inlet of lifting plate |
| CN116003107A (en) * | 2022-12-27 | 2023-04-25 | 武汉钢铁集团耐火材料有限责任公司 | Method and equipment for reducing electric smelting magnesia particles of regenerated magnesia carbon bricks |
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| C14 | Grant of patent or utility model | ||
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