CN206828337U - A kind of copper-contained sludge is granulated and the equipment of prebake - Google Patents
A kind of copper-contained sludge is granulated and the equipment of prebake Download PDFInfo
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- CN206828337U CN206828337U CN201720558999.0U CN201720558999U CN206828337U CN 206828337 U CN206828337 U CN 206828337U CN 201720558999 U CN201720558999 U CN 201720558999U CN 206828337 U CN206828337 U CN 206828337U
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- feed bin
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- copper
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- prebake
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Abstract
It is granulated the utility model discloses a kind of copper-contained sludge and the equipment of prebake, the equipment includes elevator, steady feed bin, preposition feed bin, pre-add water mixer, rearmounted feed bin, comminutor etc.；Feed bin entirety weighing device is provided with preposition feed bin, bottom is provided with pneumatic operated valve；Pre-add water mixer realizes stirring with breaing up, and inner upper is provided with atomizer, and atomizer is connected with water supply installation realizes accurate water distribution, and level-sensing device and lower level-sensing device are provided with rearmounted feed bin；Material is transmitted by belt conveyor between rearmounted feed bin, comminutor and drying screening plant.The utility model can be to the accurate water distribution of mixed powder, material is sufficiently stirred with three-dimensional agitating mode, aqueous uniform wet feed was formed in 3 minutes, the consistent pellet of particle can be made, porosity is accumulated during sintering to improve, the phenomenon that pellet is inside and outside uneven when heated and bursts is greatly reduced, and kiln section ventilation non-uniform phenomenon is greatly reduced, because the heat that evaporation moisture wastes can reduce by 300 400KJ/kg.
Description
Technical field
A kind of equipment of copper-contained sludge granulation and prebake is the utility model is related to, belongs to danger wastes resource reutilization
Technical field.
Background technology
The HW17 classifications that copper-contained sludge belongs in National Hazard waste register, are mainly derived from Treatment of Metal Surface, Re Chu
Caused sludge in the industry wastewater treatment process such as processing, electronic components fabrication, plating and basic chemical feedstock manufacture is managed, these
Sludge containing heavy metal have the characteristics that easily accumulation, it is unstable, be easy to run off, if do not dealt carefully with, serious environment can be caused
Pollution.
The mode that sludge recycles is mostly brickmaking, potting grain etc., has the low advantage of efficient, economy, operating cost, can change
Kind storage and transportation conditions, can be achieved the innoxious use of sludge, avoids the pollution to environment.Preparation process generally includes to do
The processes such as dry, stirring, granulation, drying, sintering, wherein sintering needs to consume substantial amounts of fuel, easily cause high energy consumption.Middle promulgated by the State Council
Bright patent 201110149124.2 discloses disposal and the Application way of a kind of sludge, by sludge by dry, stirring, granulation, burning
The step of knot, broken, dedusting, sub-sieve, be the haydite that can be utilized by people by firing sludge.This method prepare particle compared with
Greatly, then by broken and sub-sieve obtain, there is complex procedures, the haydite quality fired is not high the problem of.Chinese invention patent
201611178461.3 a kind of processing method of copper-contained sludge is disclosed, including：Copper-contained sludge is carried out with dryer low
Temperature drying；Copper-contained sludge after drying is sent to double rod Squeezinggranulators after the discharging opening of low temp dryer ejects, and is made
Granular copper-contained sludge；Granular copper-contained sludge is sent into band drier to be dried；Graininess cupric after drying is dirty
Mud is sent to ore deposit copper metallurgy industry and smelted.Though this method energy output blister copper, the raw material for smelting become waste residue.
In actual production process, often because material stirring is uneven, the spherical shape of comminutor finish mix is inconsistent,
During sintering easily because internal/external heating is uneven and caused by pellet burst, it is difficult to high-quality haydite is made.In addition, copper-contained sludge is in disposal
It is preceding to generally go through processing of drying in the shade for the ease of stacking, conveying, the desiccation of Sludge Surface part, the internal also water containing 50-70%
Point, existing production technology generally use first dehydrates to sludge, or does not consider that contained humidity is carried out inside sludge
Enough water distributions, easily cause complex manufacturing, the problems such as sintering energy consumption is high.Research topic of the present utility model is how to carry
For a kind of copper-contained sludge processing equipment and process more optimized.
Utility model content
Goal of the invention：For problems of the prior art, the utility model provides a kind of copper-contained sludge and is granulated and pre-
The equipment of drying, the quality that pellet is made in copper-contained sludge is improved, improve production efficiency and reduce equipment energy consumption.
Technical scheme：To realize above-mentioned purpose of utility model, the utility model adopts the following technical scheme that：
A kind of copper-contained sludge is granulated and the equipment of prebake, including along the elevator of material processing direction arrangement, steady feed bin,
Drawing-in device, preposition feed bin, pre-add water mixer, rearmounted feed bin, comminutor and drying screening plant；It is the preposition feed bin, pre-
Add water mixer, rearmounted feed bin from top to bottom to set, feed bin entirety weighing device is provided with preposition feed bin, bottom is provided with pneumatic
Valve；The pre-add water mixer realizes stirring with breaing up, and inner upper is provided with atomizer, atomizer and water supply installation phase
Even, pre-add water mixer bottom is provided with pneumatic discharge valve；Level-sensing device and lower level-sensing device are provided with the rearmounted feed bin, it is rearmounted
Measuring belt scale is provided with below feed bin；Pass through belt conveyor between the rearmounted feed bin, comminutor and drying screening plant
Transmit material.
Preferably, the steady feed bin is provided with weighing sensor, overfall is provided with the top of steady feed bin, unnecessary material can
Elevator is returned by overfall.
Preferably, in order to realize accurate water distribution in mixer, the water supply installation include screw pump, water tank, water pump and
Electro-hydraulic reversing valve；The water pump is used for cistern water supply, and the screw pump is used to convey the water in water tank through electro-hydraulic reversing valve
Atomizer to pre-add water mixer；The electro-hydraulic reversing valve passes through water lines and atomizer, screw pump and water respectively
Case is connected.
Preferably, side of the pre-add water mixer using positive and negative double ribbons, plow-shape stirring blade and the combination of high speed fly cutter
Formula is stirred and broken up to material.Material is sufficiently stirred using three-dimensional agitating mode, can be formed in 3 minutes aqueous uniform
Wet feed.
Preferably, it is described drying screening plant be provided with pellet entrance, pellet outlet, hot-wind inlet, exhaust outlet and
Waste outlet；The hot-wind inlet is connected with sintering furnace hot air discharge mouth, using residual heat from kiln furnace dry pellet, the exhaust outlet with
Deduster is connected.
Preferably, the waste outlet of the drying screening plant is connected to comminutor by belt conveyor, will not conform to
The powder of lattice is back to comminutor and is granulated again.
Beneficial effect：Compared with prior art, the utility model has the following advantages that：1st, the utility model can be in pre-add water
Material is fully broken up and stirred in mixer, original moisture in sludge can be made full use of, realize accurate water distribution, is dropped
The water capacity unevenness of low raw material, the consistent pellet of particle can be caused.2nd, the utility model be provided with steady feed bin, preposition feed bin,
Rearmounted feed bin three-level feed bin, and each feed bin is precisely weighed, it is possible to achieve copper-contained sludge continuous processing.3rd, the utility model
Obtained pellet is uniform, and accumulation porosity is mentioned when the pellet through skin drying sinters, and pellet is inside and outside uneven and quick-fried when heated
The phenomenon split is greatly reduced, and kiln section ventilation non-uniform phenomenon is greatly reduced, because the heat that evaporation moisture wastes can be reduced
300-400KJ/KG。
Brief description of the drawings
Fig. 1 is the equipment configuration schematic diagram of the utility model embodiment.
In Fig. 1,1- elevators, the steady feed bins of 2-, 3- weighing sensors, 4- drawing-in devices, the preposition feed bins of 5-, 6- feed bins are whole
Body weighing device, 7- pneumatic operated valves, 8- pre-add water mixers, 9- pneumatic discharge valves, 10- screw pumps, 11- water tanks, 12- water pumps,
13- electro-hydraulic reversing valves, 14- atomizers, the upper level-sensing devices of 15-, level-sensing device under 16-, the rearmounted feed bins of 17-, 18- measuring belt scales,
20- comminutors, 22- drying screening plant, 19,21,23,24- belt conveyors.
Fig. 2 is the process method flow chart of the utility model embodiment.
Embodiment
With reference to specific embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art couple
The modification of the various equivalent form of values of the present utility model falls within the application appended claims limited range.
Embodiment 1
As shown in figure 1, a kind of copper-contained sludge disclosed in the utility model embodiment is granulated and the equipment of prebake, including
Along elevator 1, steady feed bin 2, drawing-in device 4, preposition feed bin 5, pre-add water mixer 8, the rearmounted material of material processing direction arrangement
Storehouse 17, comminutor 20 and drying screening plant 22.Pass through skin between rearmounted feed bin 17, comminutor 20 and drying screening plant 22
Band conveyer 19,21 transmits material, and the pellet after drying is sent to sintering furnace by belt conveyor 24.Preposition feed bin 5, pre-add water
Mixer 8, rearmounted feed bin 17 are from top to bottom set, and fecula material are transported into steady feed bin 2 by elevator 1, steady feed bin 2 is provided with
Weighing sensor 3 and overfall.Feed bin entirety weighing device 6 is provided with preposition feed bin 5, bottom is provided with pneumatic operated valve 7.Pre-add
Water mixer 8 uses three-dimensional agitating mode, using positive and negative double ribbons, plow-shape stirring blade and high speed (1400rpm and more than) fly cutter
The mode of combination is stirred to material, wet feed is broken up while stirring, the inner upper of pre-add water mixer 8 is provided with mist
Change shower nozzle 14, atomizer 14 is connected with water supply installation, and the bottom of pre-add water mixer 8 is provided with pneumatic discharge valve 9.Rearmounted feed bin 17
On be provided with level-sensing device 15 and lower level-sensing device 16, the rearmounted lower section of feed bin 17 is provided with measuring belt scale 18, passes through measuring belt
Wet feed is transported to belt conveyor 19 by scale 18.
Wherein, water supply installation can realize accurate water distribution, including screw pump 10, water tank 11, water pump 12 and electro-hydraulic reversing valve
13；Water pump 12 is used to supply water to water tank 11, and screw pump 10 is used to the water in water tank 11 being delivered to pre-add through electro-hydraulic reversing valve 13
Atomizer 14 in water mixer 8；Electro-hydraulic reversing valve 13 passes through water lines and atomizer 14, screw pump 10 and water tank respectively
11 are connected.Setting range can be reached in water content by the water content of the wet feed in sensor online pre-add water mixer 8
When control electro-hydraulic reversing valve 13 commutate, screw pump 10 is stopped.
It can be drying roller picker to dry screening plant 22, while realizes the drying and screening of wet feed ball, be provided with pellet and enter
Mouth, pellet outlet, hot-wind inlet, exhaust outlet and waste outlet, hot-wind inlet are connected with sintering furnace hot air discharge mouth, utilize kiln
Stove residual heat drying pellet, exhaust outlet are connected with deduster.
The present embodiment equipment the course of work be：By the mixed raw material powder of the copper-contained sludge prepared, quick lime and carbon dust by
Elevator 1 feeds steady feed bin 2 of weighing, and the overfall that unnecessary powder passes through top returns elevator；Weigh the feeding of the lower section of steady feed bin 2
Expect device 4 (such as spiral metering reamer), raw meal powder is quantified into the preposition feed bin 5 of feeding, sets on preposition feed bin 5 and is integrally claimed by feed bin
6 (such as pulling force sensors) are put in refitting, and the feed bin is integrally weighed, and when raw material total amount reaches the rated capacity of requirement, control feeding
Device 4 stops feeding, then, controls the pneumatic operated valve 7 of the preposition bottom of feed bin 5 to open, and raw material are fed into the stirring of combined type pre-add water
Machine 8 be stirred, it is necessary to a certain proportion of water water tank 11 is supplied to by water pump 12, then the pressure by screw pump 10 on request is defeated
Atomizer 14 is delivered to, electro-hydraulic reversing valve 13 controls the flow direction of water, and when reaching the water of needs, electro-hydraulic reversing valve 13 commutates
Action, the water that screw pump 10 exports are passed straight back to water tank 11.
After raw meal powder equipped with certain proportion water stirs, pneumatic discharge valve 9 is opened, wet feed powder feeds rearmounted feed bin
17, level-sensing device 15 and lower level-sensing device 16 are provided with, ensures that wet feed amount is stable in feed bin, then passes through the metering of its bottom
Belt conveyer scale 18 measures, and being continuously fed into comminutor 20 through belt conveyor 19 is granulated, and then feeds drying sieve through belt conveyor 21
Separating device 22 is sieved, and underproof powder is sifted out, while inputs hot-air seasoning material by the hot-air mouth of side, useless after drying
Gas enters sack cleaner by the exhaust outlet on top and collected, and underproof powder returns to comminutor 20 again via belt conveyor 23
It is granulated, qualified finished product feeds kiln by belt conveyor 24 and calcined.
As shown in Fig. 2 the process with prebake is granulated using the copper-contained sludge of above-described embodiment 1, it is main to include such as
Lower step：
1) mixed powder of copper-contained sludge, quick lime and carbon dust is subjected to discontinuously circulation quantitative weighing and feeding.It is wherein raw
The parts by weight of lime are 10-18%, and the parts by weight of carbon dust are 5-7%, and remaining is copper-contained sludge, water content in copper-contained sludge
For 50-70%.
2) symmetrical measured compound powder spraying plus water carry out stirring of prewetting, and add water to use 0.8-1.2Mpa constant high-pressure
Supply water, accurate water distribution；Material is sufficiently stirred with three-dimensional agitating mode, aqueous uniform wet feed, water material weight were formed in 3 minutes
Ratio is measured in 3.5-7%.In this step, prewet raw meal powder when, the atomizing pressure of shower nozzle is between 1-1.2Mpa, water droplets diameter
Between 50-150 μm.Three-dimensional agitating mode is the mode of positive and negative double ribbons, plow-shape stirring blade and the combination of high speed fly cutter to material
It is stirred, when water material weight ratio is 3.5-7%, stirs 1 minute, water capacity unevenness≤5% of raw material, stir 3 points
Clock, water capacity unevenness≤1% of raw material.
3) by the wet feed powder measuring fixed amount after stirring, then persistently it is delivered to comminutor and is granulated.The particle diameter of granulation exists
Between 5-8mm.
4) pellet is dried and sieved, qualified finished product feeding sintering machine sintering, underproof powder (particle diameter compared with
It is small) it is returned to comminutor and is granulated again.In this step, the pellet after comminutor is granulated is sent into drying roller picker by particle and powder
Material screen is branched away, and material section is dried using residual heat from kiln furnace, removes the surface moisture of pellet.Pellet after screened and drying enters
Kiln is calcined, and pellet accumulation porosity uniform in size is mentioned, and reduces kiln section flowing resistance, and pellet is inside and outside uneven when heated
And the phenomenon to burst is greatly reduced, kiln section ventilation non-uniform phenomenon is also greatly reduced.
Process of the present utility model is illustrated by taking 1 ton of copper-contained sludge mixed powder as an example below.
Example 1：
(1) by the mixed powder quantitative claim of 980kg copper-contained sludges (water content 60 ± 2%), 15kg quick limes and 5kg carbon dusts
Weigh and feed preposition feed bin, after preposition feed bin reaches 1 ton of limit of setting, open bottom pneumatic operated valve, mixed powder entirely falls in pre-
Add water mixer.
(2) symmetrical measured compound powder spraying plus water carry out stirring of prewetting, and add water to use 0.8-1.2Mpa constant height
Pressure supplies water, and the atomizing pressure of shower nozzle is between 1-1.2Mpa, and water droplets diameter is between 50-150 μm, while adding water pair
Wet feed is stirred to be broken up with high speed fly cutter, is stirred 3 minutes, and water material weight ratio is 5%.
(3) by the wet feed powder measuring fixed amount after stirring, then persistently it is delivered to comminutor and is granulated, the particle diameter of granulation exists
Between 5-8mm.
(4) pellet is dried and sieved, qualified finished product feeding sintering machine sintering, underproof powder, which is returned to, to be made
Grain machine is granulated again.
Prebake pellet caused by this example, a length of 1.5h when being sintered in sintering furnace, the pellet accounting of explosion is 2%.
Example 2：
(1) by the mixed powder quantitative claim of 975kg copper-contained sludges (water content 50 ± 2%), 18kg quick limes and 7kg carbon dusts
Weigh and feed preposition feed bin, after preposition feed bin reaches 1 ton of limit of setting, open bottom pneumatic operated valve, mixed powder entirely falls in pre-
Add water mixer.
(2) symmetrical measured compound powder spraying plus water carry out stirring of prewetting, and add water to use 0.8-1.2Mpa constant height
Pressure supplies water, and the atomizing pressure of shower nozzle is between 1-1.2Mpa, and water droplets diameter is between 50-150 μm, while adding water pair
Wet feed is stirred to be broken up with high speed fly cutter, is stirred 3 minutes, and water material weight ratio is 7%.
(3) by the wet feed powder measuring fixed amount after stirring, then persistently it is delivered to comminutor and is granulated, the particle diameter of granulation exists
Between 5-8mm.
(4) pellet is dried and sieved, qualified finished product feeding sintering machine sintering, underproof powder, which is returned to, to be made
Grain machine is granulated again.
Prebake pellet caused by this example, a length of 1.8h when being sintered in sintering furnace, the pellet accounting of explosion is 3%.
Examples detailed above shows that copper-contained sludge of the present utility model is granulated and the equipment and technique of prebake, can be effective
Treatment of Copper sludge, the treatment effeciency of copper-contained sludge is improved, reduce the energy consumption of processing equipment, and the pellet quality produced
It is high.
Claims (6)
1. a kind of copper-contained sludge is granulated and the equipment of prebake, it is characterised in that：Including the lifting along material processing direction arrangement
Machine（1）, steady feed bin（2）, drawing-in device（4）, preposition feed bin（5）, pre-add water mixer（8）, rearmounted feed bin（17）, comminutor
（20）With drying screening plant（22）；The preposition feed bin（5）, pre-add water mixer（8）, rearmounted feed bin（17）From top to bottom set
Put, preposition feed bin（5）On be provided with feed bin entirety weighing device（6）, bottom is provided with pneumatic operated valve（7）；The pre-add water mixer
（8）Stirring is realized with breaing up, inner upper is provided with atomizer（14）, atomizer（14）It is connected with water supply installation, pre-add water
Mixer（8）Bottom is provided with pneumatic discharge valve（9）；The rearmounted feed bin（17）On be provided with level-sensing device（15）With lower level-sensing device
（16）, rearmounted feed bin（17）Lower section is provided with measuring belt scale（18）；The rearmounted feed bin（17）, comminutor（20）Sieved with drying
Separating device（22）Between material transmitted by belt conveyor.
2. a kind of copper-contained sludge according to claim 1 is granulated and the equipment of prebake, it is characterised in that：The steady feed bin
（2）It is provided with weighing sensor（3）, steady feed bin（2）Top is provided with overfall.
3. a kind of copper-contained sludge according to claim 1 is granulated and the equipment of prebake, it is characterised in that：The dress that supplies water
Put including screw pump（10）, water tank（11）, water pump（12）And electro-hydraulic reversing valve（13）；The water pump（12）For to water tank（11）
Supply water, the screw pump（10）For by water tank（11）In water through electro-hydraulic reversing valve（13）It is delivered to pre-add water mixer（8）
Interior atomizer（14）；The electro-hydraulic reversing valve（13）Pass through water lines and atomizer respectively（14）, screw pump（10）With
Water tank（11）It is connected.
4. a kind of copper-contained sludge according to claim 1 is granulated and the equipment of prebake, it is characterised in that：The pre-add water
Mixer（8）Material is stirred and broken up by the way of the combination of positive and negative double ribbons, plow-shape stirring blade and high speed fly cutter.
5. a kind of copper-contained sludge according to claim 1 is granulated and the equipment of prebake, it is characterised in that：The drying sieve
Separating device（22）It is provided with pellet entrance, pellet outlet, hot-wind inlet, exhaust outlet and waste outlet；The hot-wind inlet with
Sintering furnace hot air discharge mouth is connected, and dries pellet using residual heat from kiln furnace, the exhaust outlet is connected with deduster.
6. a kind of copper-contained sludge according to claim 1 is granulated and the equipment of prebake, it is characterised in that：The drying sieve
Separating device（22）Waste outlet comminutor is connected to by belt conveyor（20）, underproof powder is back to comminutor
（20）Again it is granulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558999.0U CN206828337U (en) | 2017-05-18 | 2017-05-18 | A kind of copper-contained sludge is granulated and the equipment of prebake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558999.0U CN206828337U (en) | 2017-05-18 | 2017-05-18 | A kind of copper-contained sludge is granulated and the equipment of prebake |
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| Publication Number | Publication Date |
|---|---|
| CN206828337U true CN206828337U (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720558999.0U Active CN206828337U (en) | 2017-05-18 | 2017-05-18 | A kind of copper-contained sludge is granulated and the equipment of prebake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055993A (en) * | 2017-05-18 | 2017-08-18 | 江苏金圆新材科技有限公司 | A kind of equipment and process of copper-contained sludge granulation and prebake |
-
2017
- 2017-05-18 CN CN201720558999.0U patent/CN206828337U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055993A (en) * | 2017-05-18 | 2017-08-18 | 江苏金圆新材科技有限公司 | A kind of equipment and process of copper-contained sludge granulation and prebake |
| CN107055993B (en) * | 2017-05-18 | 2023-04-18 | 江苏金圆新材科技有限公司 | Equipment and process method for copper-containing sludge granulation and pre-drying |
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