CN111558331A - Mine waste residue drying granulator and working method thereof - Google Patents
Mine waste residue drying granulator and working method thereof Download PDFInfo
- Publication number
- CN111558331A CN111558331A CN202010536603.9A CN202010536603A CN111558331A CN 111558331 A CN111558331 A CN 111558331A CN 202010536603 A CN202010536603 A CN 202010536603A CN 111558331 A CN111558331 A CN 111558331A
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- Prior art keywords
- hub body
- slag
- waste residue
- rotary hub
- particles
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- 238000001035 drying Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002699 waste material Substances 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 84
- 239000002893 slag Substances 0.000 claims abstract description 58
- 239000002245 particle Substances 0.000 claims abstract description 45
- 239000007921 spray Substances 0.000 claims abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 239000010811 mineral waste Substances 0.000 claims abstract description 6
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 3
- 239000011707 mineral Substances 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000005204 segregation Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 239000011859 microparticle Substances 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 239000002920 hazardous waste Substances 0.000 abstract 1
- 239000010970 precious metal Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/10—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a mineral waste residue drying granulator. Relates to the field of precious metal selecting and smelting equipment, in particular to improvement of treatment equipment for hazardous waste slag. The method is simple in process, low in energy consumption and time consumption, the hub body is obliquely placed and driven to rotate by the motor, the inner wall of the hub body is provided with a plurality of shoveling plates, the mineral slurry is sprayed on a material curtain lifted by the shoveling plates through a high-pressure spray gun, and small particles are formed under the action of rapid flash evaporation of high-temperature flue gas. The formed small particles are continuously grown under the repeated stirring of the stirring plate, and qualified large slag particles are formed and discharged from the discharge hole. The working method of the mineral waste residue drying ball forming machine comprises the following steps: the method comprises a slurry spraying step, a quick flash evaporation step, a granulation step, a conveying step and a material sieving step. The non-conforming micro particles are returned to the foremost end through the material returning spiral arranged inside, so that the micro particles continue to grow up, the whole process is completed in the rotating hub body, and the operation is simple and the efficiency is high.
Description
Technical Field
The invention relates to an ore pulp recovery processing device, in particular to a slag drying ball forming machine.
Background
In the process of metal ore mining, a large amount of ore pulp mixed with fine slag needs to be discharged, and generally the ore pulp can be processed in the next step after multiple evaporation and concentration, for example, the Chinese patent application with the publication number of CN110090737A discloses an ore pulp processing method.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the mine waste residue drying ball forming machine with simple working procedures and less time consumption and the working method thereof.
The invention is realized by adopting the following technical scheme: a mineral waste residue drying ball forming machine comprises a rotary hub body which is obliquely arranged, wherein the rotary hub body is driven to rotate by a motor, one end of the rotary hub body is provided with a spraying slurry port and a high-temperature smoke port, the other end of the rotary hub body is provided with a discharge port, mineral slurry is sprayed into the rotary hub body by a spray gun, the high-temperature smoke enters the rotary hub body, water in the sprayed slurry is evaporated to form tiny particles, a plurality of shoveling plates are arranged on the inner wall of the rotary hub body, the formed tiny particles fall onto the shoveling plates, and the formed spherical larger particles are discharged from the discharge port under the repeated shoveling movement of the shoveling plates.
The material separating sieve is arranged in the rotary hub body and close to the discharge hole, the material separating sieve is in a horn mouth shape with a large opening and a small bottom, a small opening of the material separating sieve faces the feed hole, and qualified materials entering the classifying sieve flow to the discharge hole from large flow.
A material returning spiral assembly is arranged in the rotary hub body and fixed on the inner wall of the rotary hub body;
the material returning spiral comprises a main material returning spiral and an auxiliary material returning spiral, one end of the auxiliary material returning spiral is communicated with the material separating sieve, and the main material returning spiral and the auxiliary material returning spiral are mutually spliced to form a material returning channel.
The shoveling plates comprise a plurality of groups of bending plates fixed on the inner wall of the hub body, the groups of bending plates are uniformly distributed on the inner wall of the hub body towards the axis direction of the hub body, and the bending angles of the bending plates are acute angles.
The material returning spiral comprises material grooves which are spirally arranged on the inner wall of the hub body.
The included angle between the material separating sieve and the central axis of the rotary hub body is 36 degrees.
The included angle between the rotating hub body and the ground plane is 1.5 degrees, and one end of the rotating hub body close to the feeding hole is higher than one end of the rotating hub body close to the discharging hole.
And a smoke channel for discharging gas outwards is arranged above the discharge hole.
A working method of a mine waste residue drying ball forming mill comprises the following steps:
a pulp spraying step, wherein pulp is sprayed into the hub body through a spray gun;
a dehydration step, wherein the ore pulp in the rotary hub body is evaporated to dryness by high-temperature flue gas entering from a flue gas inlet to form slag small particle balls;
granulating, namely continuously rolling the small slag particles under the action of the shoveling plate, and spraying new ore pulp on the surfaces of the small slag particles by using a spray gun to continuously enlarge the small slag particles to form slag balls;
conveying, namely obliquely placing the rotating hub body, and continuously rolling slag balls and a part of larger slag particles to a discharge port under the action of segregation gravity;
and a material sieving step, namely enabling the slag balls to cling to the inner wall of the rotary hub body by the segregation force in the rolling process of the rotary hub body, enabling the slag balls to enter the classifying screen and be discharged from the discharge port, enabling the slag small particles to fall on the material returning spiral and returning to one end, close to the feed port, of the rotary hub body, and repeating the granulating step until the slag balls are formed and are discharged from the discharge port through the classifying screen.
Compared with the prior art, the method has the advantages that the subsequent ore pulp is continuously sprayed after the small slag particles are formed by front drying, the adhesion is continuously carried out on the surfaces of the small slag particles, and the small slag particles are repeatedly lifted under the driving of the shoveling plate, so that the diameters of the small slag particles are continuously increased to form slag balls, the whole process is completed in the rotary hub body, the operation is simple, and the efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the shovelling plate in the invention;
FIG. 3 is a schematic diagram of the lifting state of a shovelling plate;
in the figure: 1. a hub body; 2. a first-stage material separating sieve; 3. a secondary material separating sieve; 4. returning the material to spiral; 5. a discharge port; 6. a sealing cover; 7. a flue gas channel; 8. small slag particles; 9. cushion blocks; 10. a ground plane.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1-3, the mine waste residue drying ball forming mill comprises a hub body which is obliquely arranged, wherein the hub body is driven by a motor to rotate, one end of the hub body is provided with a feed inlet, the other end of the hub body is provided with a discharge outlet, one end of the feed inlet, including the hub body, is provided with a spray gun and a gas inlet, the spray gun sprays ore pulp into the interior of the hub body, high-temperature flue gas enters the hub body through the gas inlet, the water content of the ore pulp is evaporated to dryness to form slag, the inner wall of the hub body is provided with a plurality of shoveling plates, the slag falls on the shoveling plates, and large particles formed under repeated shoveling movement of the shoveling plates are discharged from the discharge outlet. Subsequent ore pulp after the preceding drying forms the slay tiny particle continuously sprays, continues the adhesion on slay tiny particle surface, and the slay tiny particle is repeatedly raised under the sweep drives to make the diameter of slay tiny particle constantly increase, form the slag ball, whole process all is internal at the hub of commentaries on classics, easy operation, efficient.
The rotary hub is internally close to the discharge port, a material separating sieve is arranged at the position of the discharge port, the material separating sieve is divided into a first-stage material separating sieve and a second-stage material separating sieve, the second-stage material separating sieve is communicated with the discharge port, the first-stage material separating sieve and the second-stage material separating sieve are in a horn mouth shape with a large mouth and a small bottom, a large mouth of the first-stage material separating sieve faces the feed port, a small mouth of the first-stage material separating sieve is communicated with a small mouth of the second-stage material separating sieve, and a large mouth of the second-stage material separating sieve is communicated with the discharge. The grading sieve has the advantages that after slag balls meeting requirements (the diameter and the weight of the slag balls meet the standards) are generated under the action of the shoveling plate, the slag balls are gathered at the discharge port under the rotation driving of the inclined rotary hub body, pass through the first-stage material separating sieve and the second-stage material separating sieve and are output through the discharge port, and slag small particles are blocked by the first-stage material separating sieve and fall on the material returning spiral, so that the slag small particles are returned to the rotary hub body under the action of the material returning spiral, the slag small particles grow continuously under the cladding of the continuously sprayed ore pulp, and the slag balls meeting the requirements are discharged from the discharge port.
The material returning device is characterized in that a material returning spiral assembly is arranged in the rotary hub body and comprises a main material returning spiral and an auxiliary material returning spiral, the auxiliary material returning spiral is communicated with the material separating sieve, the material returning spiral assembly is fixed on the inner wall of the rotary hub body, one end of the material returning spiral extends into the primary material separating sieve, and the main material returning spiral is spliced with the auxiliary material returning spiral at a position 2m away from the material separating sieve to form a material returning channel.
The shoveling plates comprise a plurality of groups of bending plates fixed on the inner wall of the hub body, the groups of bending plates are uniformly distributed on the inner wall of the hub body towards the axis direction of the hub body, and the bending angles of the bending plates are acute angles.
The material returning spiral comprises material grooves which are spirally arranged in the litigation lake hub body, and the groove bottoms of the material grooves are in contact with the inner wall of the hub body and are fixedly arranged on the inner wall of the hub body.
The included angle between the first-stage material separating sieve and the central axis of the hub body is 36 degrees, and the included angle between the second-stage material separating sieve and the central axis of the hub body is 9.6 degrees. At the centrifugal force that the hub body rotates the production in the middle of the process, because the slay ball weight is heavy, consequently can paste on the inner wall of the hub body of rotation in-process, and the slay tiny particle can not paste on the inner wall because light in weight, consequently, slay ball just can pass through along the inner wall of one-level branch material sieve when the one-level divides the material sieve and the slay tiny particle only can directly turn over when the hub body rotates, and can not hug closely on the inner wall of the hub body, just also directly fall in the one-level divides the material sieve, the material return spiral that slides on from the one-level branch material sieve, realize dividing the material, separate slay ball and slay tiny particle.
The feed inlet of the rotating hub body is provided with a cushion block, an included angle with the ground plane is formed by the rotating hub body and the ground plane through the cushion block, and one end, close to the feed inlet, of the rotating hub body is higher than one end, close to the discharge outlet, of the rotating hub body. Not only ensures that the slag granules have enough time to grow into slag balls, but also enables the slag balls to slowly approach the discharge hole, and takes processing time and efficiency into consideration.
And a smoke channel for discharging gas outwards is arranged above the discharge hole.
A working method of a mine waste residue drying ball forming mill comprises the following steps:
a pulp spraying step, wherein pulp is sprayed into the hub body through a spray gun;
a dehydration step, wherein the ore pulp in the rotary hub body is evaporated to dryness by high-temperature flue gas entering from a flue gas inlet to form small slag particles; the ore pulp is instantaneously dehydrated through the hot flue gas to form slag granules. The two ends of the rotary hub body are respectively provided with the sealing covers, so that hot smoke cannot be leaked, and the heating effect is better.
Granulating, namely continuously rolling the small slag particles under the action of the shoveling plate, and spraying new ore pulp on the surfaces of the small slag particles by using a spray gun to continuously enlarge the small slag particles to form slag balls;
conveying, namely obliquely placing a rotating hub body, and continuously rolling slag balls and a part of slag small particles to a discharge hole under the action of gravity;
and a material sieving step, namely enabling the slag balls to be attached to the inner wall of the rotary hub body by centrifugal force in the rolling process of the rotary hub body, enabling the slag balls to enter the classifying screen and be discharged from the discharge port, enabling the slag small particles to fall on the material returning spiral and returning the slag small particles to one end, close to the feed port, of the rotary hub body, and repeating the granulating step until the slag balls are formed and are discharged from the discharge port through the classifying screen.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. Mineral waste residue drying ball forming machine, including the rotary hub body that the slope was placed, the rotary hub body is rotatory by motor drive, and the one end of rotary hub body is established and is spouted slurry mouth and high temperature flue gas mouth, and the other end of rotary hub body is equipped with discharge gate, its characterized in that: the spray gun sprays mineral slurry into the interior of the rotary hub body, high-temperature flue gas enters the rotary hub body, water in the sprayed slurry is evaporated to form tiny particles, a plurality of shoveling plates are arranged on the inner wall of the rotary hub body, the formed tiny particles fall onto the shoveling plates, and the tiny particles form spherical larger particles under the repeated shoveling action of the shoveling plates and are discharged from the discharge hole.
2. The mineral waste residue drying granulator according to claim 1, characterized in that: the material separating sieve is arranged in the rotary hub body and close to the discharge hole, the material separating sieve is in a horn mouth shape with a large opening and a small bottom, a small opening of the material separating sieve faces the feed hole, and qualified materials entering the classifying sieve flow to the discharge hole from large flow.
3. The mineral waste residue drying granulator according to claim 2, characterized in that: a material returning spiral assembly is arranged in the rotary hub body and fixed on the inner wall of the rotary hub body;
the material returning spiral comprises a main material returning spiral and an auxiliary material returning spiral, one end of the auxiliary material returning spiral is communicated with the material separating sieve, and the main material returning spiral and the auxiliary material returning spiral are mutually spliced to form a material returning channel.
4. The mine waste residue drying granulator according to claim 2, characterized in that: the shoveling plates comprise a plurality of groups of bending plates fixed on the inner wall of the hub body, the groups of bending plates are uniformly distributed on the inner wall of the hub body towards the axis direction of the hub body, and the bending angles of the bending plates are acute angles.
5. The mine waste residue drying granulator according to claim 3, characterized in that: the material returning spiral comprises material grooves which are spirally arranged on the inner wall of the hub body.
6. The mine waste residue drying granulator according to claim 2, characterized in that: the included angle between the material separating sieve and the central axis of the rotary hub body is 36 degrees.
7. The mine waste residue drying granulator according to claim 1, characterized in that: the included angle between the rotating hub body and the ground plane is 1.5 degrees, and one end of the rotating hub body close to the feeding hole is higher than one end of the rotating hub body close to the discharging hole.
8. The mine waste residue drying granulator according to claim 1, characterized in that: and a smoke channel for discharging gas outwards is arranged above the discharge hole.
9. The working method of the mine waste residue drying granulator as set forth in claim 1, characterized in that: the method comprises the following steps:
a pulp spraying step, wherein pulp is sprayed into the hub body through a spray gun;
a dehydration step, wherein the ore pulp in the rotary hub body is evaporated to dryness by high-temperature flue gas entering from a flue gas inlet to form slag small particle balls;
granulating, namely continuously rolling the small slag particles under the action of the shoveling plate, and spraying new ore pulp on the surfaces of the small slag particles by using a spray gun to continuously enlarge the small slag particles to form slag balls;
conveying, namely obliquely placing the rotating hub body, and continuously rolling slag balls and a part of larger slag particles to a discharge port under the action of segregation gravity;
and a material sieving step, namely enabling the slag balls to cling to the inner wall of the rotary hub body by the segregation force in the rolling process of the rotary hub body, enabling the slag balls to enter the classifying screen and be discharged from the discharge port, enabling the slag small particles to fall on the material returning spiral and returning to one end, close to the feed port, of the rotary hub body, and repeating the granulating step until the slag balls are formed and are discharged from the discharge port through the classifying screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010536603.9A CN111558331A (en) | 2020-06-12 | 2020-06-12 | Mine waste residue drying granulator and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010536603.9A CN111558331A (en) | 2020-06-12 | 2020-06-12 | Mine waste residue drying granulator and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111558331A true CN111558331A (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010536603.9A Pending CN111558331A (en) | 2020-06-12 | 2020-06-12 | Mine waste residue drying granulator and working method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN111558331A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300192A (en) * | 1998-04-20 | 1999-11-02 | Kao Corp | Production of granulated particles |
| CN102120160A (en) * | 2011-01-21 | 2011-07-13 | 浙江布莱蒙农业科技股份有限公司 | Slurry-spraying rotary granulator |
| CN104275123A (en) * | 2013-07-08 | 2015-01-14 | 江苏瑞安特重型机械有限公司 | Spraying granulation dryer |
| CN205570448U (en) * | 2016-03-03 | 2016-09-14 | 上海戴沃机械科技有限公司 | Automatic material returning device of ball mill |
| CN209039346U (en) * | 2018-07-05 | 2019-06-28 | 云南金色田野企业集团有限公司 | A kind of calcium superphosphate slurry-spraying pelletizing equipment |
| CN110787723A (en) * | 2019-10-23 | 2020-02-14 | 湖北大学 | Inner return guniting granulator |
| CN210544969U (en) * | 2019-07-31 | 2020-05-19 | 中石化南京工程有限公司 | Spraying granulation dryer |
| CN214233926U (en) * | 2020-06-12 | 2021-09-21 | 江苏竣业过程机械设备有限公司 | Mine waste residue drying ball forming machine |
-
2020
- 2020-06-12 CN CN202010536603.9A patent/CN111558331A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300192A (en) * | 1998-04-20 | 1999-11-02 | Kao Corp | Production of granulated particles |
| CN102120160A (en) * | 2011-01-21 | 2011-07-13 | 浙江布莱蒙农业科技股份有限公司 | Slurry-spraying rotary granulator |
| CN104275123A (en) * | 2013-07-08 | 2015-01-14 | 江苏瑞安特重型机械有限公司 | Spraying granulation dryer |
| CN205570448U (en) * | 2016-03-03 | 2016-09-14 | 上海戴沃机械科技有限公司 | Automatic material returning device of ball mill |
| CN209039346U (en) * | 2018-07-05 | 2019-06-28 | 云南金色田野企业集团有限公司 | A kind of calcium superphosphate slurry-spraying pelletizing equipment |
| CN210544969U (en) * | 2019-07-31 | 2020-05-19 | 中石化南京工程有限公司 | Spraying granulation dryer |
| CN110787723A (en) * | 2019-10-23 | 2020-02-14 | 湖北大学 | Inner return guniting granulator |
| CN214233926U (en) * | 2020-06-12 | 2021-09-21 | 江苏竣业过程机械设备有限公司 | Mine waste residue drying ball forming machine |
Non-Patent Citations (1)
| Title |
|---|
| M.H.纳比耶夫著，孙㑝 丁德承 陈明磊译: "《硝酸磷肥-下册-硝酸处理磷矿的工艺过程》", 30 June 1983, 北京：化学工业出版社, pages: 301 * |
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