CN109163579A - Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate Direct spraying cool-down method - Google Patents
Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate Direct spraying cool-down method Download PDFInfo
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- CN109163579A CN109163579A CN201810950073.5A CN201810950073A CN109163579A CN 109163579 A CN109163579 A CN 109163579A CN 201810950073 A CN201810950073 A CN 201810950073A CN 109163579 A CN109163579 A CN 109163579A
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- lightweight aggregate
- inorganic lightweight
- gas
- solid separation
- separation equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
- F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses disclose a kind of inorganic lightweight aggregate spray cooling system, belong to inorganic lightweight aggregate production and processing technical field, aim to solve the problem that cooling is not thorough the problem of easily causing " scalding packet " phenomenon when producing inorganic lightweight aggregate in the prior art, its key points of the technical solution are that including gas-solid separation equipment, for the spraying device to gas-solid separation equipment inner cavity spray water mist and the water tank for storing clean water；It is connected with pipeline between water tank and spraying device, water pump and the valve for control piper opening and closing are installed on pipeline.While carrying out gas solid separation in gas-solid separation equipment, by spraying device spray water mist, to achieve the purpose that thoroughly to cool down to inorganic aggregates, reduce " scalding packet " phenomenon.The present invention further correspondingly discloses the method to cool down using above-mentioned cooling system to inorganic lightweight aggregate, has the advantage that cooling is thorough, can improve the stability of inorganic lightweight aggregate production process and the product quality of inorganic lightweight aggregate using this kind of cool-down method.
Description
Technical field
The invention belongs to the inorganic lightweight aggregate processing technique fields of extruding, more specifically, it relates to a kind of inorganic lightweight aggregate
Spray cooling system and Direct spraying cool-down method.
Background technique
In the production process for producing inorganic lightweight aggregate using natural gas erect type puffing furnace, due to the high temperature of production technology
The physical characteristic of high insulation and strong abrasion that process and aggregate itself have, so that there is some in existing production technology
It is difficult the practical problem dealt carefully with.These problems cause very big puzzlement to the quality control and the discharge of tail gas of product.
Shown in FIG. 1 is common lightweight aggregate flow sheet.The production of lightweight aggregate is being especially fine perlite
In production process, the lightweight aggregate particle initial temperature for entering gas-solid separation equipment by leading portion production line is all very high, substantially exists
It is higher sometimes between 500 ~ 600 DEG C.General factory can use air in order to facilitate post-production packaging when material puts in storage
Conveying, toward production system inside inject a large amount of fresh cold air, be material cooling.Although economic convenient, the band of this method
Carry out following problems: 1, when conveying air pressure excessively high, available good cooling effect, but it is de- to will cause product particle epidermis
The phenomenon directly broken with particle is fallen, product quality is influenced；2, it when reducing air delivery pressure, can reduce in a way
Grain is crushed and the generation of decortication phenomenon, but, since material particles are a kind of heat-insulating materials, there is very high self-heat conserving performance,
Under the premise of the length of air delivery pipe is constant, although air delivery temperature when putting in storage, with sky when high pressure pneumatic conveying
Gas temperature change is little, is not adequately cooled actually, is still saved and preserve much inside these lightweight aggregate particles
Heat, material are once admitted to after finished bin, and by the regular hour, saving and preserve will be come out in particle internal heat,
Such finished product materials are packed into after packaging bag, still can be broken there is a phenomenon where scalding packaging bag.
Thus, how to make in the production of inorganic lightweight aggregate finished particle cooling thoroughly, reduce occur packaging bag scalded it is broken
" scald packet " phenomenon is problem to be solved in the industry.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of inorganic lightweight aggregate mist cooling system
System carries out the advantage that there is thorough, the subsequent finished product packing that cools down to be less prone to " scalding packet " for cooling using this kind of cooling system.
To achieve the above object, the present invention provides the following technical scheme that
A kind of inorganic lightweight aggregate spray cooling system, including gas-solid separation equipment, be provided on the separation equipment material inlet,
Product outlet and waste gas outlet further include being installed on gas-solid separation equipment roof to be used for gas-solid separation equipment inner cavity shower water
The spraying device of mist, the water tank for storing clean water；It is connected with pipeline between the water tank and spraying device, and pacifies on pipeline
Equipped with water pump and for the valve of control piper opening and closing.
By using above-mentioned technical proposal, inorganic lightweight aggregate by pneumatic conveying from the material inlet of gas-solid separation equipment into
Enter, gas solid separation is carried out in gas-solid separation equipment, the inorganic lightweight aggregate of isolated finished product is discharged from product outlet, useless containing dust
Gas is discharged from waste gas outlet.During carrying out gas solid separation, Open valve and water pump make the clean water in water tank pass through pipeline
Pumped spraying device, then spray to form fine drop via spraying device.Spraying device spray fine drop can into
The high temperature inorganic aglite and high temperature conveying air for entering gas-solid separation equipment come into full contact with, and are steamed by the water high temperature that formed of liquid
Vapour takes away amount of heat, achievees the purpose that carry out high temperature inorganic aglite and high temperature conveying air cooling.
By spraying cooling, the exhaust gas temperature that the finished product and waste gas outlet being discharged from product outlet are discharged is below 300 DEG C,
Finished product export temperature is greatly reduced to solve the problems, such as easily " to scald packet ".Later use bag filter handles tail gas
When, it does not easily cause dust-removal cloth-bag to damage or rupture, improves the stability of production process.In addition, using this kind of cooling system pair
Inorganic lightweight aggregate, which is cooled down, also has the separative efficiency for improving gas-solid separation equipment, especially to the light of 0.1mm or less rank
Aggregate fine particle has had good effect, can reduce the heat load and dust quantity load of bag filter；Another party
Face can reduce conveying wind pressure when lightweight aggregate particle puts in storage using this kind of cooling system, reduce particle in process of pneumatic transmission
The generation of Fragmentation Phenomena, improves product quality.
Further, the inner wall of the gas-solid separation equipment and be located at material inlet lower section to deviate from gas-solid separation equipment
Roof direction be tiltedly installed with striker plate.
By using above-mentioned technical proposal, striker plate can be reduced inorganic lightweight aggregate because of pressure after entrance gas-solid separation equipment
Changing and carries over the sedimentation of gas-solid separation equipment inner wall, the water mist that inorganic lightweight aggregate is sufficiently sprayed with spraying device contacts,
Sufficiently cooled down.
Further, material inlet pipe is connected at the material inlet, and the axis direction of material inlet pipe is perpendicular to spraying
The spray direction of device.
By using above-mentioned technical proposal, the water mist that spraying device sprays comes into full contact with inorganic lightweight aggregate, to light inorganic
The lowering temperature uniform of aggregate, thoroughly.
Further, the spraying device is hydraulic direct injection nozzle.
By using above-mentioned technical proposal, the water mist drop that hydraulic direct injection nozzle sprays is tiny, uniform, can be in gas-solid point
From being gasified totally after contact in equipment with high temperature inorganic lightweight aggregate and high temperature conveying air, reduce because gasification not exclusively causes
The case where lightweight aggregate particle adhesion equipment inner wall.
Further, the water pump is metering pump.
By using above-mentioned technical proposal, clean water can be delivered to spraying device with certain hydraulic pressure by metering pump, spray
Form uniformly fine and closely woven water mist；On the other hand, metering pump can measure the water of the clean water of conveying, convenient for control spray amount.
It is a further object of the present invention to provide a kind of inorganic lightweight aggregate Direct spraying cool-down methods, have to light inorganic
The cooling of aggregate finished product thoroughly, improve the excellent of the stability of inorganic lightweight aggregate production process and the product quality of inorganic lightweight aggregate
Gesture.
To achieve the goals above, the present invention provides the following technical scheme that
A kind of inorganic lightweight aggregate Direct spraying cool-down method, includes the following steps,
Step 1: the inorganic lightweight aggregate of the gas-solid separation equipment toward inorganic lightweight aggregate spray cooling system described in any of the above embodiments
Inorganic lightweight aggregate to be cooled down is passed through in import；
Step 2: Open valve and water pump, using spraying device to gas-solid separation equipment inner space spray water mist；
Step 3: the inorganic lightweight aggregate of cooling is collected from product outlet, from giving up in waste gas outlet discharge gas-solid separation equipment
Gas.
By using above-mentioned technical proposal, at least has the advantages that 1, is thorough to the cooling of inorganic lightweight aggregate, solving
Problem " is scalded and wrapped " caused by lightweight aggregate export temperature is excessively high；2, the exhaust temperature being discharged after cooling down protects subsequent lower than 300 DEG C
Bag-type dust equipment is not damaged；3, gas-solid disngaging efficiency is high, especially to the lightweight aggregate fine particle of 0.1mm or less rank
Good effect has been had, the heat load and dust quantity load of bag filter are reduced, stability of the production process is high；4, it reduces light
Conveying wind pressure when particles of aggregates puts in storage reduces the generation of Particle Breakage phenomenon in process of pneumatic transmission, improves product quality.
Further, water mist partial size≤300 μm that spraying device sprays in step 2.
By using above-mentioned technical proposal, the excessive drop of partial size is not easy complete gas during inorganic lightweight aggregate settles
The phenomenon that changing, lightweight aggregate particle adhesion equipment inner wall can be caused, thus liquid water mist partial size no more than 300 μm to be advisable.It can be effective
The blocking of finished product conveyance conduit and equipment inside corrosion phenomenon caused by reducing because of the attachment of lightweight aggregate particle.
Further, the matter of spraying device sprays in step 2 water and the inorganic lightweight aggregate into gas-solid separating device
Amount is than being 0.1:1-1:1.
By using above-mentioned technical proposal, spray amount is excessive easily to cause water mist to gasify incomplete, lightweight aggregate particle in equipment
Inner wall, and then cause the blocking of finished product conveyance conduit or equipment inside corrosion, thus the quality of spray amount and inorganic lightweight aggregate
Than being advisable with 0.1:1-1:1.
In conclusion the invention has the following advantages:
1, the exhaust gas temperature that the finished product and waste gas outlet being discharged from product outlet are discharged is below 300 DEG C, reduces finished product export
Temperature is to solve the problems, such as easily " scald wrap ", and when later use bag filter handles tail gas does not easily cause dust removing cloth
Bag damage or rupture, production stability are high；
2, being cooled down using cooling system of the invention to inorganic lightweight aggregate, also there is the separation for improving gas-solid separation equipment to imitate
Rate has especially had good effect to the lightweight aggregate fine particle of 0.1mm or less rank, can reduce bag filter
Heat load and dust quantity load；
3, conveying wind pressure when lightweight aggregate particle puts in storage can be reduced using cooling system of the invention, reduces process of pneumatic transmission
The generation of middle Particle Breakage phenomenon improves product quality；
4, cooled down using cool-down method of the invention, there is, stable production process thorough to the cooling of inorganic lightweight aggregate finished product
Property the good and high advantage of product quality obtained.
Detailed description of the invention
Fig. 1 is lightweight aggregate flow sheet in background technique；
Fig. 2 is the structural schematic diagram of inorganic lightweight aggregate spray cooling system in embodiment；
Fig. 3 is the structural schematic diagram of the gas-solid separation equipment of not set baffle；
Fig. 4 is the structural schematic diagram that the gas-solid separation equipment of baffle is provided in embodiment.
In figure: 1, water tank；2, metering pump；3, spraying device；4, material inlet；41, material inlet pipe；5, gas solid separation is set
It is standby；51, striker plate；6, waste gas outlet；61, exhaust gas outlet pipe；7, product outlet；8, valve；9, pipeline.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1:
A kind of inorganic lightweight aggregate spray cooling system, referring to Fig. 2 comprising the gas-solid that main body is cylindrical, bottom end is funnel-shaped
Separation equipment 5.The cylindrical body part of gas-solid separation equipment 5 is provided with material inlet 4 and waste gas outlet 6, and bottom end is provided with
For the product outlet 7 of isolated finished product inorganic lightweight aggregate to be discharged.Material inlet pipe 41 is connected at material inlet 4, exhaust gas goes out
Exhaust gas outlet pipe 61 is connected at mouth 6.Inorganic lightweight aggregate enters gas by pneumatic conveying, through material inlet pipe 41 and material inlet 4
Gu separation equipment 5；Inorganic lightweight aggregate particle gas-solid separation equipment 5 sedimentation after, from product outlet 7 be discharged, dust-laden exhaust gas from
It is discharged at waste gas outlet 6 via exhaust gas outlet pipe 61.
Referring to Fig. 2, it is provided with spraying device 3 at the geometric center of 5 roof of gas-solid separation equipment, is filled by spraying in the present embodiment
Set 3 selection hydraulic direct spray type spray nozzles.Be connected with the pipeline 9 for water inlet on spraying device 3, pipeline 9 far from spraying device 3 one
End is connected to water tank 1.Purified water is stored in water tank 1；Metering pump 2 is installed on pipeline 9, and opened and closed for control piper 9
Valve 8.Open valve 8 can be quantified to spraying device 3 using metering pump 2 and convey purified water, and sprayed by hydraulic direct spray type spray nozzle
Out, water mist is formed inside gas-solid separation equipment 5.Energy is contacted using water mist and high temperature inorganic aglite, high temperature conveying air
Amount of heat is taken away in gasification rapidly, can cool down to inorganic lightweight aggregate and conveying air.
Referring to Fig. 2, the axial direction of material inlet pipe 41 is set as vertical with the spray direction of spraying device 3, increases water
Mist and the exposure level for entering the high temperature inorganic aglite and high temperature air in gas-solid separation equipment 5.
Referring to Fig. 3 and Fig. 4, the not set striker plate 51 of gas-solid separation equipment 5 in the prior art, material enters gas solid separation
After equipment 5, physical particles easily carry over the side wall sedimentation of gas-solid separation equipment 5, cause to contact and be not thorough with the water mist sprayed, cause
The cooling of product is not thorough.In order to solve this problem, striker plate is provided on the inner wall of gas-solid separation equipment 5 in the present embodiment
51, the lower section of material inlet 4 is arranged in striker plate 51 and end is connect with the edge of material inlet 4.Since striker plate 51 is deposited
So that the stream of hot air for being mixed with high temperature aglite flows to the lower section of spraying device 3, inorganic lightweight aggregate is without a large amount of heavy
Drop, ensure that contact adequacy of the water mist with inorganic lightweight aggregate, so that the cooling to inorganic lightweight aggregate is thorough.
Working principle is as follows:
Clean water is sprayed by spraying device 3 and forms water mist, and the sedimentation cooling with water mist sprinkling is formed in gas-solid separation equipment 5
Separated region, material separate sedimentation while cooled so that from waste gas outlet 6 be discharged dust-laden exhaust gas and from
The inorganic lightweight aggregate temperature that product outlet 7 is discharged can all be down to 300 DEG C hereinafter, excessively high to solve lightweight aggregate storage temperature
And " scalding packet " problem generated, it also can solve the excessively high and damage problem to bag filter generation of dust-containing tail gas temperature, protect
The stabilization for having demonstrate,proved technological parameter in entire production process improves the stability and product quality of production process.Using the present invention
Inorganic lightweight aggregate spray cooling system cool down, also have the function of the separative efficiency that can be improved gas solid separation, especially
It is that have good effect to the recycling of the lightweight aggregate subparticle of 0.1mm or less rank, is reduced for handling dust-laden exhaust gas
Bag filter heat load and dust quantity load.In addition, inorganic lightweight aggregate spray cooling system of the invention can also drop
Conveying wind pressure when low lightweight aggregate particle puts in storage reduces the generation of Particle Breakage phenomenon in process of pneumatic transmission, improves product
Quality.
Embodiment 2:
A kind of inorganic lightweight aggregate Direct spraying cool-down method is specifically comprised the following steps: based on embodiment 1
Step 1: material inlet pipe 41 in a manner of pneumatic conveying the inorganic lightweight aggregate spray cooling system into embodiment 1
Inorganic lightweight aggregate to be cooled down is passed through in gas-solid separation equipment 5.
Step 2: Open valve 8 and metering pump 2, are passed through spraying device 3 for the clean water in water tank 1 using pipeline 9, to
5 inner space spray water mist of gas-solid separation equipment.In order to guarantee that spraying effect, spraying device 3 select hydraulic direct spray type spray nozzle, lead to
Overregulate partial size≤300 μm of the water mist drop of the pressure control ejection of spray head.The mass ratio control of spray amount and inorganic lightweight aggregate
In 0.1:1-1:1, specific spray amount can be adjusted system according to inventory.To avoid because water mist drop is excessive or spraying
Measure it is excessive, cause water mist gasification not exclusively, cause lightweight aggregate particle the phenomenon that being attached to equipment inner wall.
Step 3: collecting the inorganic lightweight aggregate of cooling from product outlet 7, finished bin is sent by pneumatic conveying, in gas
Finished product temperature can further decrease during power conveys, and " scald and wrap " generation of phenomenon when avoiding packaging.From 6 row of waste gas outlet
Out after the dust-laden exhaust gas in gas-solid separation equipment 5, exhaust gas can further be located by cleaners such as bag filters
Reason.
Cooled down using inorganic lightweight aggregate Direct spraying cool-down method of the invention, there is the thorough, production process that cools down
Stability is good and advantage that final product quality is high.
Above-mentioned specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (8)
1. a kind of inorganic lightweight aggregate spray cooling system, including gas-solid separation equipment (5), material is provided on the separation equipment
Import (4), product outlet (7) and waste gas outlet (6), it is characterised in that: further include being installed on gas-solid separation equipment (5) roof
For the spraying device (3) to gas-solid separation equipment (5) inner cavity spray water mist, the water tank (1) for storing clean water；The water
It is connected between case (1) and spraying device (3) pipeline (9), and water pump is installed on pipeline (9) and is opened for control piper (9)
The valve (8) closed.
2. inorganic lightweight aggregate spray cooling system according to claim 1, it is characterised in that: the gas-solid separation equipment
(5) the inner wall and lower section for being located at material inlet (4) is tiltedly installed with backgauge to the roof direction away from gas-solid separation equipment (5)
Plate (51).
3. inorganic lightweight aggregate spray cooling system according to claim 1, it is characterised in that: at the material inlet (4)
It is connected with material inlet pipe (41), and the axis direction of material inlet pipe (41) is perpendicular to the spray direction of spraying device (3).
4. inorganic lightweight aggregate spray cooling system according to claim 3, it is characterised in that: the spraying device (3) is
Hydraulic direct injection nozzle.
5. inorganic lightweight aggregate spray cooling system according to claim 1, it is characterised in that: the water pump is metering pump
(2)。
6. a kind of inorganic lightweight aggregate Direct spraying cool-down method, it is characterised in that: include the following steps,
Step 1: the gas-solid separation equipment (5) of the past described in any item inorganic lightweight aggregate spray cooling systems of claim 1-5
Inorganic lightweight aggregate to be cooled down is passed through in inorganic lightweight aggregate import；
Step 2: Open valve (8) and water pump, using spraying device (3) to gas-solid separation equipment (5) inner space shower water
Mist；
Step 3: collecting the inorganic lightweight aggregate of cooling at product outlet (7), gas-solid separation equipment is discharged from waste gas outlet (6)
(5) exhaust gas in.
7. inorganic lightweight aggregate Direct spraying cool-down method according to claim 6, it is characterised in that: filled by spraying in step 2
Set water mist partial size≤300 μm of (3) ejection.
8. inorganic lightweight aggregate Direct spraying cool-down method according to claim 7, it is characterised in that: filled by spraying in step 2
The mass ratio set the water of (3) ejection and enter the inorganic lightweight aggregate of gas-solid separating device is 0.1:1-1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950073.5A CN109163579B (en) | 2018-08-20 | 2018-08-20 | Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate direct spray cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950073.5A CN109163579B (en) | 2018-08-20 | 2018-08-20 | Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate direct spray cooling method |
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| Publication Number | Publication Date |
|---|---|
| CN109163579A true CN109163579A (en) | 2019-01-08 |
| CN109163579B CN109163579B (en) | 2022-07-19 |
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| CN201810950073.5A Active CN109163579B (en) | 2018-08-20 | 2018-08-20 | Inorganic lightweight aggregate spray cooling system and inorganic lightweight aggregate direct spray cooling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476731A (en) * | 2021-12-24 | 2022-05-13 | 武汉天空蓝环保科技有限公司 | Dry slag bin cooling dust fall waste gas emission reduction device and dry slag processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171265A (en) * | 1974-10-02 | 1979-10-16 | Saint-Gobain Industries | Suppression of pollution in mineral fiber manufacture |
| CN1104015A (en) * | 1993-04-09 | 1995-06-21 | 巴布科克-日立公司 | Wet type flue gas desulfurizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114476731A (en) * | 2021-12-24 | 2022-05-13 | 武汉天空蓝环保科技有限公司 | Dry slag bin cooling dust fall waste gas emission reduction device and dry slag processing system |
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| CN109163579B (en) | 2022-07-19 |
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