CN101793460A - Slag dryer - Google Patents
Slag dryer Download PDFInfo
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- CN101793460A CN101793460A CN 201010114770 CN201010114770A CN101793460A CN 101793460 A CN101793460 A CN 101793460A CN 201010114770 CN201010114770 CN 201010114770 CN 201010114770 A CN201010114770 A CN 201010114770A CN 101793460 A CN101793460 A CN 101793460A
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- barrel
- slag
- cylindrical shell
- material receiving
- raw ore
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Abstract
The invention discloses a slag dryer in the field of sulphuric acid plants based on pyrites. The slag dryer comprises a barrel. Rolling rings are arranged at the periphery of the barrel at intervals; and the lower sides of the rolling rings are supported on a supporting roller group. The periphery of the barrel is also provided with a gear ring in transmission connection with a driving mechanism. A slag inlet is formed at the front end of the barrel, and the rear end of the barrel is provided with a discharge box which is provided with a discharge outlet and a smoke outlet. A spray cooling drum is sleeved at the front end of the barrel, and is provided with a spray water pipe. A material receiving box is arranged outside the barrel at the rear end of the spray cooling drum, and is provided with a raw ore inlet corresponding to a material inlet on the barrel wall; a plurality of propeller mixing blades are arranged on an inner wall of the barrel; a material collecting tank is arranged on the inner wall of the barrel corresponding to the front end of the material receiving box; the bottom of the material collecting tank is connected with a distribution tube extending towards the discharge box in an inclined mode; and a plurality of distribution holes are formed on the distribution tube. During work, the high-temperature slag is cooled and mixed with the raw ore, and the moisture in the raw ore is dried. Therefore, the drying process has easy operation and low energy consumption; and the slag dryer can be applied to the industry of sulphuric acid production based on the pyrites.
Description
Technical field
The present invention relates to a kind of acid-producing apparatus, particularly a kind of dryer with the oven dry of the moisture content in the raw ore.
Background technology
In the pyrite-based sulfuric acid production device, it is 6～8% that fluidized bed furnace is gone into the requirement of stove mineral water part, and existing raw ore water content differs, and the water content of part raw ore is higher, can not satisfy the moisture content index that production technology is gone into the stove ore deposit, needs oven dry to handle, to remove the moisture content in the raw material.
Mainly contain the method for moisture content in following several removal raw ore at present, one: adopt the coal furnace burning, obtain 400 ℃～500 ℃ dry gas, enter the moisture content in the evaporation raw ore in the dryer, it is reached into the roasting requirement of stove ore deposit.This technological equipment investment is excessive, and operating cost is also very high in the production process, has increased the production cost, and market sale lacks the power of striving unexpectedly.
Its two: the high temperature furnace slag that fluidized bed furnace is discharged, in air, stay for some time and lose a part of heat, utilizing nature cooling to be cooled to from 850 ℃ is 400 ℃～500 ℃ temperature, removes to mix raw ore with the load wagon transportation again, its Hybrid Heating is heated up evaporate unnecessary moisture content.The temperature of the general wayward slag of this method and the size of addition are easy to generate a large amount of SO in the workshop
2Gas and dust, the work on the spot environment is very poor.
Summary of the invention
The purpose of this invention is to provide a kind of slag dryer, make it can utilize slag oven dry raw ore, its temperature and slag addition are easy to control.
Slag dryer provided by the invention, the cylindrical shell that comprises horizontal setting, the multistage active section that cylindrical shell is linked to each other by order is connected in series and forms, the cylindrical shell peripheral, axial is interval with rolling ring, the rolling ring downside is supported on the support roller group, the periphery of cylindrical shell also is provided with gear ring, described gear ring and driving mechanism are in transmission connection, barrel front end is provided with the slag import, cylinder back-end is provided with discharge box, the discharge box bottom is provided with discharging opening, and the discharge box top is provided with fume extractor, and barrel front end is set with the spray cooling cylinder, the spray cooling cylinder is provided with spray header, the cylindrical shell of spray cooling tube rear end is provided with material receiving box outward, and material receiving box is provided with the raw ore import, offers charging aperture on the corresponding barrel wall of raw ore import, cylinder inboard wall is provided with several and advances stirring vane, the cylinder inboard wall of described material receiving box front end correspondence is provided with at least one material collecting tank, and the material collecting tank bottom is connected with and is tilted to the isocon that the discharge box direction is extended, and isocon is provided with some tap holes.
When this device uses, the high temperature furnace slag of temperature greater than 850 ℃ entered in the cylindrical shell from the slag import, in the cylindrical shell rotation process, advance stirring vane on the one hand slag to be advanced to discharge box one end, play stirring action simultaneously.The spray header trickle cylindrical shell that cools, slag temperature is cooled to below 600 ℃ from 850 ℃, rotation along with cylinder, advance blade to bring slag into material collecting tank, from the end of isocon and tap hole, flow out again, slag mixes stirring with the raw ore that contains higher moisture content that enters from material receiving box in the cylindrical shell, under the effect that advances stirring vane, raw ore fully mixes with slag, move to discharge box again through pervaporation, the raw ore temperature is risen to more than 120 ℃, moisture content in the raw ore is able to abundant evaporation, the moisture content that is evaporated and a small amount of flue dust are discharged from discharge box top fume extractor, and the mixture that meets the raw ore of instructions for use and slag is from discharge box lower part outlet separating device.Compared with prior art, the present invention can be by adjusting the velocity of rotation of cylindrical shell, can utilize the angle setting of the propelling stirring vane of different operating section, change raw ore and the proportioning of slag and the spray flux section of equaling of cooling water, realization can be regulated discharge box drop temperature and water content, make whole drying course easy operating, but energy efficient; This device can be used in the pyrite-based sulfuric acid production industry raw ore being dried.
Because after raw ore and the slag initial mixing, the water content in the raw ore is higher, may cause the part raw ore to be bonded on cylinder inboard wall and the propelling stirring vane, therefore, can on the cylinder body outer wall of described material receiving box rear end, be provided with the rapping of some ball formulas.The rapping of ball formula is an existing shaking device in the prior art, and it makes to stick in cylinder inboard wall and advance the material on the stirring vane to come off by vibration bump cylinder body outer wall.
Above-mentioned propelling stirring vane has propelling and stirs two kinds of functions, when advancing angle between stirring vane surface and the cylindrical shell center line less than 30 °, it mainly plays stirring action, can be referred to as flight, the more little material speed of advancement of angle is slow more, every layer of flight taken up slag and raw ore and fallen, and both are mixed; When advancing angle between stirring vane surface and the cylindrical shell center line greater than 50 °, it mainly plays progradation, can be referred to as guide plate, the big more material speed of advancement of angle is slow more, material in the reach process along the cylinder inboard wall roll-sliding, prolong slag and raw ore Hybrid Heating time, evaporated the moisture content in the raw ore; Propelling blade on described trickle cooling cylinder and the close cylinder inboard wall of discharge box is the guide plate of multi-head spiral shape, and the propelling stirring vane on the cylinder inboard wall of material receiving box and ball formula rapping correspondence is a flight.
As a further improvement on the present invention, described tap hole is provided with on isocon in the shape of a spiral, and the tap hole position of opening satisfies following requirement: when the correspondence position of isocon turned to high point, Open Side Down for the tap hole of this position correspondence.Like this, shunt slag downwards, help the mixing of slag and raw ore more by tap hole.
Convenient for guaranteeing charging, described charging aperture is provided with feed well outward, and feed well and material receiving box inwall are complementary, and feed well is provided with tangential open communication charging aperture.When cylindrical shell rotated, on the one hand, raw ore can directly enter in the cylindrical shell from tangential opening part; On the other hand, the raw ore between cylindrical shell and the material receiving box can be taken up, it is entered in the cylindrical shell, can avoid the jam that gathers materials by tangential opening.For making things convenient for raw ore to enter, the tangential opening both sides of described feed well are splayed and are provided with stock guide.Splay stock guide has the effect of converging, and charging is more convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the inner barrel structural representation.
Fig. 3 is the A-A sectional drawing of Fig. 1.
Fig. 4 is that the B-B of Fig. 1 is to view.
Fig. 5 is that the C-C of Fig. 1 is to view.
Fig. 6 is that the D-D of Fig. 5 is to view.
Fig. 7 is that the E-E of Fig. 5 is to view.
Wherein: 1 slag import, 2 spray cooling cylinders, 3 steam outlet pipes, 4 rolling rings, 5 material receiving box, 6 ball formula rappings, 7 cylindrical shells, 8 gear rings, 9 discharge boxs, 10 fume extractors, 11 discharging openings, 12 driving mechanisms, 13 support roller groups, 14 coolant outlets, 15 guide plates, 16 material collecting tanks, 17 feed wells, 18 charging apertures, 19 flights, 20 isocons, 21 tap holes, 22 raw ore imports, 23 tangential openings, 24 stock guides.
The specific embodiment
As shown in the figure, be slag dryer, it includes the cylindrical shell 7 of horizontal setting, the multistage active section that cylindrical shell 7 is linked to each other by order is connected in series and forms, and cylindrical shell 7 peripheral, axial are interval with rolling ring 4, and rolling ring 4 downsides are supported on the support roller group 13, has plenty of the support support roller in the support roller group 13, have plenty of the location support roller, it mainly plays support, positioning action, can guarantee that cylindrical shell 7 is rotatable and can not be out of shape; The periphery of cylindrical shell 7 also is provided with gear ring 8, and described gear ring 8 is in transmission connection with driving mechanism 12, by driving mechanism 12, can drive cylindrical shell 7 and rotate; Cylindrical shell 7 front ends are provided with slag import 1, and cylindrical shell 7 rear ends are provided with discharge box 9, and discharge box 9 bottoms are provided with discharging opening 11, discharge box 9 tops are provided with fume extractor 10, fume extractor 10 is used to discharge flue dust and steam, for avoiding the smoke contamination atmosphere, can in fume extractor 10 water dust scrubber be set; The periphery suit spray cooling cylinder 2 of cylindrical shell 7 front ends, spray cooling cylinder 2 is provided with spray header, and spray cooling cylinder 2 internal upper parts are provided with steam outlet pipe 3, and the bottom is provided with coolant outlet 14, spray header water inlet spray can be given the cooling of the slag in the cylindrical shell 7 on cylindrical shell 7 surfaces; Be positioned at the cylindrical shell 7 outer material receiving box 5 that are equipped with of spray cooling cylinder 2 rear ends, material receiving box 5 is provided with raw ore import 22, offer charging aperture 18 on raw ore import 22 corresponding cylindrical shell 7 walls, charging aperture 18 circumferentially can offer a plurality of, each charging aperture 18 outer feed well 17 that are provided with, feed well 17 is complementary with material receiving box 5 inwalls, and feed well 17 is provided with tangential opening 23 and is communicated with charging aperture 18; Tangential opening 23 both sides of feed well 17 are splayed and are provided with stock guide 24; Cylindrical shell 7 outer walls of described material receiving box 5 rear ends are provided with some ball formulas rapping 6; Also be provided with some propelling stirring vanes on cylindrical shell 7 inwalls, on cylindrical shell 7 inwalls of spray cooling cylinder 2 correspondences and near the propelling stirring vane on cylindrical shell 7 inwalls of discharge box 9 one ends is the guide plate 15 of multi-head spiral shape, each guide plate 15 is that the propelling stirring vane on cylindrical shell 7 inwalls of material receiving box 5 and ball formula rapping 6 correspondences is a flight 19 along the part of the continuous spirality guide plate that is provided with of cylinder inboard wall; Cylindrical shell 7 inwalls of material receiving box 5 front end correspondences are provided with material collecting tank 16, and material collecting tank 16 bottoms are connected with and are tilted to the isocon 20 that discharge box 9 extends, and isocon 20 extends to crosses charging aperture 18, and isocon 20 is provided with some tap holes 21; Tap hole 21 is provided with on isocon 20 in the shape of a spiral, and tap hole 21 position of opening satisfy: when the correspondence position of isocon 20 turned to high point, Open Side Down for the tap hole 21 of this position correspondence.
During this device work, can be divided into spray cooling section P1, middle hybrid working section P2 and evaporation discharging section P3 by its active section as shown in Figure 2; High temperature furnace slag more than 850 ℃ is entered from dryer end import 1, raw ore enters from the import 22 on the material receiving box 5, cool water shower is at cylindrical shell 7 outer surfaces, driving mechanism 12 drives cylindrical shell 7 to be continued to rotate, at slag import 1 one ends, guide plate 15 advances slag to material receiving box 5 directions, under the cooling water effect, slag temperature is reduced to and drops to 500 ℃-600 ℃; By regulating cooling water inflow, can control temperature, leave from coolant outlet 14 through the cold water water after the heat exchange, the steam of generation can leave from steam outlet pipe 3; Along with the rotation of cylinder, guide plate 15 is brought most of slag into material collecting tank 16, flows out from the end of isocon 20 and tap hole 21 again, and a small amount of slag can be directed to plate 15 and directly enter in cylindrical shell 7 active sections of material receiving box 5 position correspondences; Slag mixes stirring with the raw ore that contains higher moisture content enter cylindrical shell 7 from material receiving box 5 in, the tangential opening 23 of feed well 17 and the structure of stock guide 24 make it under the situation that cylindrical shell rotates, function with active collection material avoids raw ore to accumulate between material receiving box 5 and the cylindrical shell 7; Under flight 19 effects, raw ore fully mixes with slag, and constantly to discharge box 9 motions, the raw ore temperature is risen to more than 120 ℃, moisture content in the raw ore is able to abundant evaporation, and under the progradation of the guide plate 15 in discharging section P3, the mixture of slag and raw ore arrives discharge box 9 positions, the moisture content that is evaporated and a small amount of flue dust are discharged from discharge box top fume extractor 10, and the mixture that meets the raw ore of instructions for use and slag is from discharge box 9 separating devices; The effect of ball formula rapping 6 is and the material vibration that sticks on cylindrical shell 7 inwalls and the flight 19 can be dropped.
The present invention is not limited to the foregoing description; obvious distortion and equivalence replacement as said structure all fall within the scope of protection of the present invention; for example flight and guide plate can be substituted by other forms of propelling stirring vane, and isocon also can extend near crossing charging aperture position etc.
Claims (6)
1. slag dryer, it is characterized in that: the cylindrical shell that comprises horizontal setting, the multistage active section that cylindrical shell is linked to each other by order is connected in series and forms, the cylindrical shell peripheral, axial is interval with rolling ring, the rolling ring downside is supported on the support roller group, the periphery of cylindrical shell also is provided with gear ring, described gear ring and driving mechanism are in transmission connection, barrel front end is provided with the slag import, cylinder back-end is provided with discharge box, the discharge box bottom is provided with discharging opening, and the discharge box top is provided with fume extractor, and barrel front end is set with the spray cooling cylinder, the spray cooling cylinder is provided with spray header, the cylindrical shell of spray cooling tube rear end is provided with a material receiving box outward, and material receiving box is provided with the raw ore import, offers charging aperture on the corresponding barrel wall of raw ore import, cylinder inboard wall is provided with several and advances stirring vane, the cylinder inboard wall of described material receiving box front end correspondence is provided with at least one material collecting tank, and the material collecting tank bottom is connected with and is tilted to the isocon that the discharge box direction is extended, and isocon is provided with some tap holes.
2. slag dryer according to claim 1 is characterized in that: the cylinder body outer wall of described material receiving box rear end is provided with the rapping of some ball formulas.
3. slag dryer according to claim 2, it is characterized in that: the propelling blade on described spray cooling cylinder and the close cylinder inboard wall of discharge box is the multi-head spiral guide plate, and the propelling stirring vane on the cylinder inboard wall of material receiving box and ball formula rapping correspondence is a flight.
4. according to any described slag dryer of claim 1-3, it is characterized in that: described tap hole is provided with on isocon in the shape of a spiral, the tap hole position of opening satisfies: when the correspondence position of isocon turned to high point, Open Side Down for the tap hole of this position correspondence.
5. according to any described slag dryer of claim 1-3, it is characterized in that: described charging aperture is provided with feed well outward, and feed well and material receiving box inwall are complementary, and feed well is provided with tangential open communication charging aperture.
6. slag dryer according to claim 5 is characterized in that: the tangential opening both sides of described feed well are splayed and are provided with stock guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101147700A CN101793460B (en) | 2010-02-26 | 2010-02-26 | slag dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101147700A CN101793460B (en) | 2010-02-26 | 2010-02-26 | slag dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793460A true CN101793460A (en) | 2010-08-04 |
| CN101793460B CN101793460B (en) | 2011-12-21 |
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ID=42586290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101147700A Expired - Fee Related CN101793460B (en) | 2010-02-26 | 2010-02-26 | slag dryer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101793460B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776700A (en) * | 2015-04-09 | 2015-07-15 | 江西稀有稀土金属钨业集团有限公司 | Tungsten concentrate electric heating drying converter and tungsten concentrate electric heating drying method |
| CN109942164A (en) * | 2019-04-18 | 2019-06-28 | 安徽科技学院 | A kind of feces of livestock and poultry hydrothermal carbonization processing equipment |
| CN111689507A (en) * | 2020-06-23 | 2020-09-22 | 萍乡市华顺环保化工填料有限公司 | Automatic production line for chemical raw material carriers and adsorbents |
| CN113188319A (en) * | 2021-05-25 | 2021-07-30 | 山西沃锦新材料股份有限公司 | Device and method for continuously producing anhydrous barium chloride |
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| US3576080A (en) * | 1969-11-19 | 1971-04-27 | Allis Chalmers Mfg Co | Rotary cooler and the like |
| US4014643A (en) * | 1974-07-15 | 1977-03-29 | Almer Sangyo Kaisha, Ltd. | Rotary kiln |
| US5067254A (en) * | 1990-05-25 | 1991-11-26 | Cedarapids, Inc. | Method and apparatus for modifying a veil of materials in a drum of a drying apparatus |
| US5566469A (en) * | 1995-07-18 | 1996-10-22 | Fen-Tech Environmental, Inc. | Drying apparatus with rotatable housing |
| CN2847188Y (en) * | 2005-05-10 | 2006-12-13 | 山东天力干燥设备有限公司 | Rotary drum drier special for slurry material |
| CN1959318A (en) * | 2006-11-20 | 2007-05-09 | 山东天力干燥设备有限公司 | Revolving drier of precise terephthalic acid (PTA)steam |
| CN101334232A (en) * | 2008-08-06 | 2008-12-31 | 江苏科行环境工程技术有限公司 | Rotary drying device suitable for high moisture material |
| CN201607098U (en) * | 2010-02-26 | 2010-10-13 | 杨正清 | Slag dryer |
-
2010
- 2010-02-26 CN CN2010101147700A patent/CN101793460B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576080A (en) * | 1969-11-19 | 1971-04-27 | Allis Chalmers Mfg Co | Rotary cooler and the like |
| US4014643A (en) * | 1974-07-15 | 1977-03-29 | Almer Sangyo Kaisha, Ltd. | Rotary kiln |
| US5067254A (en) * | 1990-05-25 | 1991-11-26 | Cedarapids, Inc. | Method and apparatus for modifying a veil of materials in a drum of a drying apparatus |
| US5566469A (en) * | 1995-07-18 | 1996-10-22 | Fen-Tech Environmental, Inc. | Drying apparatus with rotatable housing |
| CN2847188Y (en) * | 2005-05-10 | 2006-12-13 | 山东天力干燥设备有限公司 | Rotary drum drier special for slurry material |
| CN1959318A (en) * | 2006-11-20 | 2007-05-09 | 山东天力干燥设备有限公司 | Revolving drier of precise terephthalic acid (PTA)steam |
| CN101334232A (en) * | 2008-08-06 | 2008-12-31 | 江苏科行环境工程技术有限公司 | Rotary drying device suitable for high moisture material |
| CN201607098U (en) * | 2010-02-26 | 2010-10-13 | 杨正清 | Slag dryer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776700A (en) * | 2015-04-09 | 2015-07-15 | 江西稀有稀土金属钨业集团有限公司 | Tungsten concentrate electric heating drying converter and tungsten concentrate electric heating drying method |
| CN109942164A (en) * | 2019-04-18 | 2019-06-28 | 安徽科技学院 | A kind of feces of livestock and poultry hydrothermal carbonization processing equipment |
| CN109942164B (en) * | 2019-04-18 | 2022-02-01 | 安徽科技学院 | Livestock and poultry excrement hydrothermal carbonization treatment equipment |
| CN111689507A (en) * | 2020-06-23 | 2020-09-22 | 萍乡市华顺环保化工填料有限公司 | Automatic production line for chemical raw material carriers and adsorbents |
| CN111689507B (en) * | 2020-06-23 | 2022-11-08 | 萍乡市华顺环保化工填料有限公司 | Automatic production line for chemical raw material carriers and adsorbents |
| CN113188319A (en) * | 2021-05-25 | 2021-07-30 | 山西沃锦新材料股份有限公司 | Device and method for continuously producing anhydrous barium chloride |
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| Publication number | Publication date |
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| CN101793460B (en) | 2011-12-21 |
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Granted publication date: 20111221 Termination date: 20140226 |