CN108435102A - Air supporting electric arc prilling process and equipment for the production of waste thiourea dregs soil conditioner - Google Patents
Air supporting electric arc prilling process and equipment for the production of waste thiourea dregs soil conditioner Download PDFInfo
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- CN108435102A CN108435102A CN201810460986.9A CN201810460986A CN108435102A CN 108435102 A CN108435102 A CN 108435102A CN 201810460986 A CN201810460986 A CN 201810460986A CN 108435102 A CN108435102 A CN 108435102A
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- sedimentation chamber
- air supporting
- soil conditioner
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- waste thiourea
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- 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
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Abstract
The present invention relates to soil conditioner production process equipment technical fields, more particularly to are used for the air supporting electric arc prilling process of waste thiourea dregs soil conditioner production, including：Press filtration, drying, additive package, airflow circulating suspend, material particles under arcing welding growth and etc.；The equipment for being exclusively used in the above method is further related to, including：Sedimentation chamber, augment tube, cyclone dust collectors, air supporting trunnion, blanking storehouse, side-wall electrode, middle axial electrode, into gas bag chamber, sedimentation chamber is spherical cavity, augment tube is mounted at the top of sedimentation chamber, blanking storehouse is mounted below sedimentation chamber, and it is connected to sedimentation chamber by air supporting trunnion, side-wall electrode is mounted on air supporting trunnion on the side wall of sedimentation chamber junction, and axis electrode arrangement is in sedimentation chamber lower end center；The present invention realizes the granulation purpose of fine and close, not applicable water-soluble binder and the irregular waste thiourea dregs soil conditioner of finished form, increases such soil conditioner to the adhesion of soil, improves regulation effect.
Description
Technical field：
The present invention relates to soil conditioner production process equipment technical fields, more particularly to are used for waste thiourea dregs soil conditioning
The air supporting electric arc prilling process and equipment of agent production.
Background technology：
During preparing thiocarbamide using lime nitrogen and hydrogen sulfide, a large amount of waste thiourea dregs are will produce, main component is
Calcium hydroxide and carbon, can mix the additive containing magnesium, zinc, copper, manganese, iron etc. after waste thiourea dregs water removal makes as soil conditioner
With, be mainly used for administer acid soil, can be used for basic soil and alkaline land soil ingredient improvement.
Since the conditioner mixture light weight density of powdery is small, directly buries easy gone out by flow of burying and floated with flow
Dissipate, can not play the role of to soil composition improve, therefore, for the ease of the soil conditioner storage and transportation use, usually by
Granulation is handled after ratio mixes each sulfate and borax, increases its granular mass and density, prevents conditioner drift from dissipating.
Water-soluble binder is mostly used to the prilling process of soil conditioner at present to be compacted into granular material bonding
Block, technology mode is simpler and at low cost, but area with heavy rainfall still remain dissolving it is too fast easily with flow scatter and disappear ask
Topic, at the same be compacted it is blocking after the smooth rule in soil conditioner surface, can not be effectively glutinous with soil in the case of burying depth deficiency
Even, there is the possibility blown off by wind erosion in long-term arid area, influence the effect of soil conditioner.
Invention content：
In consideration of it, it is necessary to provide a kind of process program for the production of waste thiourea dregs soil conditioner, manufacture does not use
Water-soluble binder, quality are intensive but in irregular shape, the soil conditioner particle big with soil adhesion, and provide corresponding
Special equipment.
For the air supporting electric arc prilling process of waste thiourea dregs soil conditioner production, include the following steps：
Step 1：Press filtration water removal operation is carried out to aqueous waste thiourea dregs material, keeps the waste thiourea dregs material after water removal aqueous
Rate is less than 3% by mass；
Step 2：Drying and processing is carried out to the waste thiourea dregs material after water removal, keeps the waste thiourea dregs material after drying aqueous
Rate is less than 0.4% by mass；
Step 3：Waste thiourea dregs material after drying is mixed and stirred for uniformly with additive, additive is powdered, mesh
Number 80~110；
Step 4：By mixed material be placed in sedimentation chamber in, be passed through dry air to sedimentation chamber, make material disperse and
Vertical direction upper rotary recycles in sedimentation chamber；
Above-mentioned sedimentation chamber is spherical cavity, and top is connected with augment tube, and bottom end is connected with air supporting trunnion, sedimentation chamber with
Side-wall electrode is installed on air supporting pipe joint side wall and multiple electric discharge cones are set, sedimentation chamber lower end center is provided with axis electricity
Pole, dry air are passed through sedimentation chamber by air supporting trunnion, are discharged by augment tube；
Step 5：Making alive between side-wall electrode and middle axial electrode, upon mixing striking under the revolution cycle environment of material
Electric discharge will be heated to 580 degrees Celsius of calcium hydroxide fusing point or more by the material particles of arc path, in infall process with week
It encloses unclassified stores welding and forms fine and close irregular particle；
Step 6：After the continuous welding growth of material particles, the case where air supporting trunnion current rate is not enough to be held up
It is lower to fall into blanking storehouse along air supporting trunnion；
Above-mentioned blanking storehouse upper outside is enclosed with into gas bag chamber, is connected between gas bag chamber and blanking storehouse by sieve plate.
Preferably, in step 4, be passed through the dry air of sedimentation chamber air supporting trunnion Yu sedimentation chamber junction flow velocity not
Less than 1.3 metre per second (m/s)s, 150~230 degrees Celsius of temperature.
Preferably, in step 4, the air being discharged by augment tube is passed through through cyclone dust collectors with after compressor again
Into gas bag chamber, the dust that cyclone dust collectors are isolated returns to sedimentation chamber.
For the air supporting electric arc Granulation Equipments of waste thiourea dregs soil conditioner production, including：Sedimentation chamber, augment tube,
Cyclone dust collectors, air supporting trunnion, blanking storehouse, side-wall electrode, middle axial electrode, into gas bag chamber；Wherein, sedimentation chamber is spherical cavity,
Augment tube one end is mounted at the top of sedimentation chamber, and the other end is connected to cyclone dust collectors air inlet, cyclone dust collectors blanking port
It is connected to sedimentation chamber top by airtight feeder, blanking storehouse is mounted below sedimentation chamber, and passes through air supporting trunnion and sedimentation chamber
Connection, side-wall electrode are mounted on air supporting trunnion and sedimentation chamber junction side wall and are provided with multiple electric discharges and bore, middle axial electrode cloth
It sets in sedimentation chamber lower end center, outer rim is provided with multiple electric discharge cones.
When work, air-flow is entered by blanking storehouse, sedimentation chamber is impacted upwards after air supporting trunnion collects acceleration, in sedimentation chamber
Expansion collects acceleration by augment tube again after slowing down, by being discharged by cyclone dust collectors exhaust pipe after cyclone dust collectors.
During being somebody's turn to do, powdery is granulated material level in sedimentation chamber, under the airflow function to slow down after impacting sedimentation chamber, is sinking
Drop intracavitary rises along central axes, side is shifted to expansion decelerating flow and settled, slided to the path at sedimentation chamber bottom and follow along side wall
Ring moves；Side-wall electrode connects power supply two-stage respectively with middle axial electrode, the continuous striking arc electric discharge under the material particles environment of disperse,
To be heated to 580 degrees Celsius of calcium hydroxide fusing point or more by the material particles of arc path, in infall process with around its
His material welding forms fine and close irregular particle；After the constantly growth of the particle of welding, it is not enough in air supporting trunnion current rate
It is fallen such as blanking storehouse, completion granulating working procedure along air supporting trunnion in the case of being held up.
After a small amount of material not settled in sedimentation chamber is accelerated with air-flow rising by augment tube, by cyclone dust collectors point
From, and it is recycled back to sedimentation chamber through the airtight feeder at cyclone dust collectors blanking port.
Lateral airflow damage to prevent from occurring in blanking storehouse high speed has been granulated the material particles of completion, outside the top of blanking storehouse
Side is enclosed with into gas bag chamber, is connected between gas bag chamber and blanking storehouse by sieve plate, air-flow into gas bag intracavitary slow down supercharging after,
Slowly enter blanking storehouse through sieve plate, after acceleration collected by air supporting trunnion.
Preferably, sedimentation chamber upper and lower ends are respectively rounding off with augment tube, air supporting pipe joint, are prevented
Air-flow forms vortex in sedimentation chamber reduces settling efficiency, increases cyclone dust collectors load.
To realize that the continuous work of equipment, the design should also include feeder and discharge port, feeder is that dual gate is airtight
Feeder is mounted on sedimentation chamber upper side, and discharge port, which is located at, falls bin bottom side, and is provided with flashboard.
Preferably, the design further includes axis electrode support, and axis electrode support is connected to above middle axial electrode, axis electricity
Pole is suspended on by axis electrode support in sedimentation chamber, shadow of the axial electrode installation fixed structure to air-flow at air supporting trunnion in reduction
It rings, improves granulation efficiency.Further, axis electrode support is the aluminum holder of copper holder or surface packet plastic coating, directly
The effect of axis electrode cable is picked up, device structure is simplified.
The present invention is realized fine and close, not applicable water-soluble by the operation principle of a small amount of material of electric arc transient heating to fusing point
The granulation purpose of property binder and the irregular waste thiourea dregs soil conditioner of finished form, effectively increases such soil conditioning
Agent improves regulation effect to the adhesion of soil.
Description of the drawings：
Attached drawing 1 is that the specific embodiment structure of the air supporting electric arc Granulation Equipments produced for waste thiourea dregs soil conditioner is shown
It is intended to；
Attached drawing 2 is the specific embodiment sedimentation chamber of the air supporting electric arc Granulation Equipments produced for waste thiourea dregs soil conditioner
Overlooking structure diagram.
In figure：Sedimentation chamber 1, augment tube 2, cyclone dust collectors 3, air supporting trunnion 4, blanking storehouse 5, side-wall electrode 6, axis
Electrode 7, axis electrode support 701, into gas bag chamber 8, feeder 9 and discharge port 10.
Specific implementation mode：
For the air supporting electric arc prilling process of waste thiourea dregs soil conditioner production, include the following steps：
Step 1：Press filtration water removal operation is carried out to aqueous waste thiourea dregs material, keeps the waste thiourea dregs material after water removal aqueous
Rate is less than 3% by mass；
Step 2：Drying and processing is carried out to the waste thiourea dregs material after water removal, keeps the waste thiourea dregs material after drying aqueous
Rate is less than 0.4% by mass；
Step 3：Waste thiourea dregs material after drying is mixed and stirred for uniformly with additive, the additive is sulfuric acid
The mixture of magnesium, zinc sulfate, copper sulphate, manganese sulfate, ferric sulfate, additive are powdered, mesh number 80~110；
Step 4：By mixed material be placed in sedimentation chamber in, be passed through dry air to sedimentation chamber, make material disperse and
Vertical direction upper rotary recycles in sedimentation chamber；
Above-mentioned sedimentation chamber is spherical cavity, and top is connected with augment tube, and bottom end is connected with air supporting trunnion, sedimentation chamber with
Side-wall electrode is installed on air supporting pipe joint side wall and multiple electric discharge cones are set, sedimentation chamber lower end center is provided with axis electricity
Pole, dry air are passed through sedimentation chamber by air supporting trunnion, are discharged by augment tube；The dry air of sedimentation chamber is passed through in air supporting larynx
Pipe and the flow velocity of sedimentation chamber junction are not less than 1.3 metre per second (m/s)s, 150~230 degrees Celsius of temperature, the sky being discharged by augment tube
Gas is passed through again after cyclone dust collectors and compressor into gas bag chamber, and the dust that cyclone dust collectors are isolated returns to sedimentation chamber；
Step 5：Making alive between side-wall electrode and middle axial electrode, upon mixing striking under the revolution cycle environment of material
Electric discharge will be heated to 580 degrees Celsius of calcium hydroxide fusing point or more by the material particles of arc path, in infall process with week
It encloses unclassified stores welding and forms fine and close irregular particle；
Step 6：After the continuous welding growth of material particles, the case where air supporting trunnion current rate is not enough to be held up
It is lower to fall into blanking storehouse along air supporting trunnion；
Above-mentioned blanking storehouse upper outside is enclosed with into gas bag chamber, is connected between gas bag chamber and blanking storehouse by sieve plate.
For the air supporting electric arc Granulation Equipments of waste thiourea dregs soil conditioner production, including：Sedimentation chamber 1, augment tube
2, cyclone dust collectors 3, air supporting trunnion 4, blanking storehouse 5, side-wall electrode 6, middle axial electrode 7, axis electrode support 701, into gas bag chamber
8, feeder 9 and discharge port 10.
Wherein, sedimentation chamber 1 is spherical cavity, and 2 one end of augment tube is mounted on 1 top of sedimentation chamber, the round and smooth mistake in junction
It crosses, the other end is connected to 3 air inlet of cyclone dust collectors, and 3 blanking port of cyclone dust collectors is connected to sedimentation chamber 1 by airtight feeder
Top, feeder 9 are the airtight feeder of dual gate, are mounted on 1 upper side of sedimentation chamber.
Blanking storehouse 5 is mounted on 1 lower section of sedimentation chamber, and is connected to sedimentation chamber 1 by air supporting trunnion 4, air supporting trunnion 4 and sedimentation
1 junction rounding off of chamber, discharge port 10 is located at 5 bottom sides of blanking storehouse, and is provided with flashboard.
Side-wall electrode 6 is mounted on air supporting trunnion 4 and 1 junction side wall of sedimentation chamber and is provided with multiple electric discharges and bores, axis
Electrode support 701 is copper holder, is connected to 7 top of middle axial electrode, and middle axial electrode 7 is suspended on by axis electrode support 701
In sedimentation chamber 1, middle axial electrode 7 is located at 1 lower end of sedimentation chamber center, and outer rim is provided with multiple electric discharge cones；5 upper outside of blanking storehouse
It is enclosed with into gas bag chamber 8, is connected between gas bag chamber 8 and blanking storehouse 5 by sieve plate.
Claims (8)
1. the air supporting electric arc prilling process for the production of waste thiourea dregs soil conditioner, which is characterized in that include the following steps：
Step 1：To aqueous waste thiourea dregs material carry out press filtration water removal operation, make the waste thiourea dregs material water ratio after water removal by
Quality meter is less than 3%；
Step 2：To after water removal waste thiourea dregs material carry out drying and processing, make the waste thiourea dregs material water ratio after drying by
Quality meter is less than 0.4%；
Step 3：Waste thiourea dregs material after drying is mixed and stirred for uniformly with additive, additive is powdered, mesh number 80
~110；
Step 4：Mixed material is placed in sedimentation chamber, dry air is passed through to sedimentation chamber, material is made to disperse and settle
Intracavitary vertical direction upper rotary recycles；
Above-mentioned sedimentation chamber is spherical cavity, and top is connected with augment tube, and bottom end is connected with air supporting trunnion, sedimentation chamber and air supporting
Side-wall electrode is installed on pipe joint side wall and multiple electric discharge cones are set, sedimentation chamber lower end center is provided with middle axial electrode,
Dry air is passed through sedimentation chamber by air supporting trunnion, is discharged by augment tube；
Step 5：Making alive between side-wall electrode and middle axial electrode, striking is discharged under the revolution cycle environment of material upon mixing,
To be heated to 580 degrees Celsius of calcium hydroxide fusing point or more by the material particles of arc path, in infall process with around its
His material welding forms fine and close irregular particle；
Step 6：After the continuous welding growth of material particles, the edge in the case where air supporting trunnion current rate is not enough to be held up
Air supporting trunnion falls into blanking storehouse；
Above-mentioned blanking storehouse upper outside is enclosed with into gas bag chamber, is connected between gas bag chamber and blanking storehouse by sieve plate.
2. the air supporting electric arc prilling process for the production of waste thiourea dregs soil conditioner, feature exist as described in claim 1
In in the step 4, being passed through the flow velocity of the dry air of sedimentation chamber in air supporting trunnion Yu sedimentation chamber junction and be not less than 1.3 meters
It is per second, 150~230 degrees Celsius of temperature.
3. the air supporting electric arc prilling process for the production of waste thiourea dregs soil conditioner, feature exist as described in claim 1
In, in the step 4, it is passed through again into gas bag chamber after cyclone dust collectors and compressor by the air of augment tube discharge,
The dust that cyclone dust collectors are isolated returns to sedimentation chamber.
4. the air supporting electric arc Granulation Equipments for the production of waste thiourea dregs soil conditioner, which is characterized in that including：Sedimentation chamber, increasing
Fast exhaust pipe, cyclone dust collectors, air supporting trunnion, blanking storehouse, side-wall electrode, middle axial electrode, into gas bag chamber；
Wherein, sedimentation chamber is spherical cavity, and augment tube one end is mounted at the top of sedimentation chamber, and the other end is connected to cyclone dust removal
Device air inlet, cyclone dust collectors blanking port are connected to sedimentation chamber top by airtight feeder, and blanking storehouse is mounted under sedimentation chamber
Side, and is connected to by air supporting trunnion with sedimentation chamber, side-wall electrode mounted on air supporting trunnion on the side wall of sedimentation chamber junction and set
Multiple electric discharge cones are equipped with, for axis electrode arrangement in sedimentation chamber lower end center, outer rim is provided with multiple electric discharge cones；
Blanking storehouse upper outside is enclosed with into gas bag chamber, is connected between gas bag chamber and blanking storehouse by sieve plate.
5. the air supporting electric arc Granulation Equipments for the production of waste thiourea dregs soil conditioner, feature exist as claimed in claim 4
In the sedimentation chamber upper and lower ends are respectively rounding off with augment tube, air supporting pipe joint.
6. the air supporting electric arc Granulation Equipments for the production of waste thiourea dregs soil conditioner, feature exist as claimed in claim 4
In further including feeder and discharge port, feeder is the airtight feeder of dual gate, is mounted on sedimentation chamber upper side, discharge port
Positioned at falling bin bottom side, and it is provided with flashboard.
7. the air supporting electric arc Granulation Equipments for the production of waste thiourea dregs soil conditioner, feature exist as claimed in claim 4
In further including axis electrode support, axis electrode support is connected to above middle axial electrode, and middle axial electrode passes through axis electrode support
It is suspended in sedimentation chamber.
8. the air supporting electric arc Granulation Equipments for the production of waste thiourea dregs soil conditioner, feature exist as claimed in claim 7
In the axis electrode support is copper holder or plastic aluminum holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460986.9A CN108435102B (en) | 2018-05-15 | 2018-05-15 | Air floatation electric arc granulation method and equipment for producing thiourea waste residue soil conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460986.9A CN108435102B (en) | 2018-05-15 | 2018-05-15 | Air floatation electric arc granulation method and equipment for producing thiourea waste residue soil conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN108435102A true CN108435102A (en) | 2018-08-24 |
| CN108435102B CN108435102B (en) | 2021-01-05 |
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| CN201810460986.9A Active CN108435102B (en) | 2018-05-15 | 2018-05-15 | Air floatation electric arc granulation method and equipment for producing thiourea waste residue soil conditioner |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454022Y (en) * | 2000-11-09 | 2001-10-17 | 武进市科创喷雾干燥设备厂 | Spray-drying granulating machine |
| JP2015100785A (en) * | 2013-11-28 | 2015-06-04 | 国立研究開発法人農業・食品産業技術総合研究機構 | Granulation method and granulation device |
| CN105810548A (en) * | 2015-01-20 | 2016-07-27 | 松下知识产权经营株式会社 | Apparatus for producing fine particles and method for producing fine particles |
-
2018
- 2018-05-15 CN CN201810460986.9A patent/CN108435102B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454022Y (en) * | 2000-11-09 | 2001-10-17 | 武进市科创喷雾干燥设备厂 | Spray-drying granulating machine |
| JP2015100785A (en) * | 2013-11-28 | 2015-06-04 | 国立研究開発法人農業・食品産業技術総合研究機構 | Granulation method and granulation device |
| CN105810548A (en) * | 2015-01-20 | 2016-07-27 | 松下知识产权经营株式会社 | Apparatus for producing fine particles and method for producing fine particles |
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| CN108435102B (en) | 2021-01-05 |
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