CN206654743U - Adjustable chemical gypsum crystallization reactor and denitration gypsum cleaning device comprising same - Google Patents
Adjustable chemical gypsum crystallization reactor and denitration gypsum cleaning device comprising same Download PDFInfo
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- CN206654743U CN206654743U CN201621078576.0U CN201621078576U CN206654743U CN 206654743 U CN206654743 U CN 206654743U CN 201621078576 U CN201621078576 U CN 201621078576U CN 206654743 U CN206654743 U CN 206654743U
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- 239000010440 gypsum Substances 0.000 title claims abstract description 84
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 84
- 238000002425 crystallisation Methods 0.000 title claims abstract description 82
- 230000008025 crystallization Effects 0.000 title claims abstract description 82
- 238000004140 cleaning Methods 0.000 title claims abstract description 59
- 239000000126 substance Substances 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 238000006243 chemical reaction Methods 0.000 claims abstract description 55
- 239000012065 filter cake Substances 0.000 claims abstract description 42
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 230000018044 dehydration Effects 0.000 claims abstract description 23
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 23
- 238000005352 clarification Methods 0.000 claims abstract description 4
- 239000000706 filtrate Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 30
- 239000002002 slurry Substances 0.000 claims description 29
- 238000005406 washing Methods 0.000 claims description 15
- 239000004744 fabric Substances 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 210000002966 serum Anatomy 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 abstract description 35
- 230000000694 effects Effects 0.000 abstract description 11
- 239000012295 chemical reaction liquid Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 33
- 239000007787 solid Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 241001131796 Botaurus stellaris Species 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 239000012267 brine Substances 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 239000006071 cream Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000011143 downstream manufacturing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The utility model discloses an adjustable chemical gypsum crystallization reactor and contain the clean device of denitration gypsum of this reactor. Wherein, adjustable chemical gypsum crystallization reactor, including the tapered reactor body, the inner chamber of tapered reactor body is separated by two vertical baffles that top-down is fixed and is formed the crystallization reaction zone that is located the centre and is located the clarification separation zone of both sides, the bottom of vertical baffle leaves the clearance with the bottom of tapered reactor body, the crystallization reaction zone is equipped with reaction liquid entry and first overflow and returns back to the liquid entry, the upper portion of clarification separation zone is equipped with the overflow export, the thick liquid export of tapered reactor body bottom and the feed inlet intercommunication of first hydrocyclone, the last overflow mouth and the first overflow of first hydrocyclone return to the liquid entry intercommunication. The adjustable chemical gypsum crystallization reactor can effectively control the size of gypsum crystals, further realize sufficient solid-liquid separation, and improve the dehydration efficiency and the filter cake cleaning effect of the sectional type vacuum belt dehydrator.
Description
Technical field
The utility model belongs to gypsum cleaning field, more particularly to adjustable chemical gypsum crystallization reactor, denitration stone
Cream cleaning apparatus and method.
Background technology
Brine denitration, the sulfate ion in bittern water is sloughed using freezing, there is high energy consumption, equipment investment is big
A kind of feature, new denitration mode of the chemical method denitration as alkali factory, i.e., add ionic calcium soln, so as to tie in bittern water
Crystalline substance forms calcium sulphate dihydrate solid (gypsum), by separation of solid and liquid, removes the solid gypsum for including sulfate radical, so as to reach abjection
The purpose of sulfate radical in salt saltwater brine, but the solid gypsum of output, but because height contains salinity, it can not be effectively utilized.After needing
Continuous separation, cleaning technology, which can be produced, is available for downstream industry to use qualified gypsum, at the same meet again salt saltwater brine not by
The purpose of dilution.
Existing denitration gypsum cleaning apparatus structural representation as shown in figure 1, its by conventional crystallizer 3, cyclone 4, very
Empty belt feeder 5 forms.But the solid-liquid separation effect of existing denitration gypsum cleaning apparatus and technique, solid cleaning performance and separation
The filtrate of dilution be all unable to reach the desired level of actual industrial.
The content of the invention
On the one hand, the purpose of this utility model is to overcome the shortcomings of the prior art part and provide adjustable
Chemical gypsum crystallization reactor, adjustable chemical gypsum crystallization reactor of the present utility model can effectively control gypsum crystal
Size, and then realize good separation of solid and liquid, improve the efficiency being subsequently dehydrated and cleaning performance.
The technical scheme that uses of we for：Adjustable chemical gypsum crystallization reactor, including cone-shaped reactor body, cone
The inner chamber of shaped reaction device body is separated to form positioned at middle crystallization reaction area and position by two vertical clapboards fixed from top to bottom
In the clarified separation area of both sides, gap is left in the bottom of vertical clapboard with the bottom of cone-shaped reactor body, and crystallization reaction area is provided with
Reaction solution entrance and the first overflow rework solution entrance, the top in clarified separation area export provided with overflow, cone-shaped reactor body bottom
The serum outlet at end is connected with the charging aperture of the first hydrocyclone, and overflow head piece and the first overflow of the first hydrocyclone are returned
The connection of liquid entrance is returned, the bottom of the first hydrocyclone is provided with discharge gate.
The overflow head piece of first hydrocyclone and the first overflow rework solution entrance pass through one-level overflow return duct
Connection, the crystallization reaction area is stretched into one end of one-level overflow return duct, in order that the crystal grain size that must be obtained is more
Uniformly, the termination of one-level overflow return duct should be located at the relatively low position (for example, middle part region below) of reactor, specific position
Put depending on size needed for crystal.
As the further improvement to above-mentioned technical proposal, agitator is additionally provided with the crystallization reaction area.Agitator is excellent
Elect speed-adjustable stir device as.The setting of agitator may be such that reactant uniformly mixes contact, improve reaction speed.
As the further improvement to above-mentioned technical proposal, the crystallization reaction area is additionally provided with compressed air purging pipe, pressure
The conical lower portion of the cone-shaped reactor body is closed in the bottom of contracting air scavenging conduit.Preferably, compressed air purging Guan Shangshe
There is regulating valve.Booster action is played in being arranged in crystallization reaction for compressed air purging pipe, for crystallization reactor bottom and wall
On fouling, can play a part of purging remove.
As the further improvement to above-mentioned technical proposal, the adjustable chemical gypsum crystallization reactor also includes the
Two hydrocyclones, the charging aperture of the second hydrocyclone connect with the discharge gate of first hydrocyclone, and centre is by pump
The feed liquid of first hydrocyclone discharge is pumped into the second hydrocyclone by pressurization, and the bottom of the second hydrocyclone is provided with discharge
Mouthful；
The crystallization reaction area is provided with the second overflow rework solution entrance, and the overflow head piece of the second hydrocyclone and second are overflow
Flow the connection of rework solution entrance.The overflow head piece of second hydrocyclone and the second overflow rework solution entrance pass through two level overflow
Return duct connects, and the crystallization reaction area is stretched into one end of two level overflow return duct, in order that the crystal grain that must be obtained
Size is more uniformly distributed, and the termination of two level overflow return duct should be located at the relatively low position of reactor (for example, area below middle part
Domain), particular location is depending on size needed for crystal.
Because gypsum reaction solution there are different qualities, cause crystallizing range and time different, in order to realize different anti-
Answer and ideal crystal is generated under solution condition, keep excellent solid-liquid separation effect, lift the controllability of reactor, this
The crystallization reactor of utility model is additionally provided with the second hydrocyclone.
On the other hand, the utility model additionally provides denitration gypsum cleaning apparatus, including described adjustable chemical stone
Cream crystallization reactor and segmented vacuum belt dewaterer, segmented vacuum belt dewaterer include expanded rubber belt, charging
Device, Washing of Filter Cake device, from upstream to downstream drive under the driving of belt drives wheel, feed arrangement is set expanded rubber belt
In the upstream of expanded rubber belt, the lower section of expanded rubber belt is provided with vacuum box, is divided into the first dehydration by dividing plate in vacuum box
Area and the second drying zone, wherein the first drying zone forms filter cake for pending slurries to be carried out with vacuum suction dehydration, separate
Filtrate enter the first drying zone, the second drying zone is used to carrying out vacuum suction to the filter cake after Washing of Filter Cake device spray de-
Water, the cleaning solution of separation enter the second drying zone；First is sequentially provided with below vacuum box, along the transmission direction of expanded rubber belt
Gas-liquid collector and the second gas-liquid collector, the first gas-liquid collector and the second gas-liquid collector respectively with the first drying zone of vacuum box and
Two drying zones connect, the liquid outlet of the first gas-liquid collector and the gas-liquid inlet communication of the first knockout drum, the second gas-liquid collector
Liquid outlet and the second knockout drum gas-liquid inlet communication, the gas outlet of the first knockout drum and the second knockout drum
Connected respectively with the bleeding point of vavuum pump, the first knockout drum and the second knockout drum further respectively have liquid outlet；Filter cake
Wash mill is located at the corresponding position above expanded rubber belt corresponding with the second gas-liquid collector；
The discharge gate of the first hydrocyclone and the charging aperture of feed arrangement of adjustable chemical gypsum crystallization reactor
Connection；
The crystallization reaction area of adjustable chemical gypsum crystallization reactor is additionally provided with vacuum belt filtrate and returns to entrance, vacuum
Belt filtrate returns to entrance and connected with the liquid outlet of the first knockout drum.
As the further improvement to above-mentioned technical proposal, the cross section of the expanded rubber belt is flute profile, it is described go out
Fluid apertures is located at its bottom, and filter cloth is supported on the top of expanded rubber belt.Expanded rubber belt top is used for supporting filter cloth, bottom
Vacuum chamber is formed, unobstructed apocenosis passage is provided for filtering, biphase gas and liquid flow dynamic resistance is small, with good airtight during suction filtration
Property, so as to obtain higher vacuum motive force.
As the further improvement to above-mentioned technical proposal, the denitration gypsum cleaning apparatus also includes filtrate cleaning dress
Put, the filtering material cleaning device includes flushing line, water pump, water tank and the distributor being arranged on above expanded rubber belt, punching
The one end for washing pipeline is connected with distributor, and its other end is connected by water pump with water tank.
As the further improvement to above-mentioned technical proposal, pacify on the flushing line between the distributor and the water pump
Equipped with adjustable flowmeter.Adjustable flowmeter causes segmented vacuum belt dewaterer to have accurate controllability,
Efficiently save again.
As the further improvement to above-mentioned technical proposal, the distributor is provided with two, and two distributors are along porous rubber
The transmission direction parallel arranged of rubber belt.
Another aspect, the utility model additionally provide a kind of denitration gypsum cleaning method, comprised the following steps：
1) bittern water, ionic calcium soln are injected into denitration gypsum from the reaction solution entrance of described denitration gypsum cleaning apparatus
The crystallization reaction area of cleaning apparatus, the slurries obtained after bittern water, ionic calcium soln reaction enter the first waterpower from serum outlet
Cyclone；
2) the first hydrocyclone concentrates to slurries, and solid therein is split according to particle size；Through
The slurry formed after the separation of first hydrocyclone is dehydrated from the discharging opening of the first hydrocyclone into segmented vacuum belt
Machine, overflow head piece of the relatively small crystal grain through the first hydrocyclone formed after the separation of the first hydrocyclone enter
Enter crystallization reaction area to continue to grow up；Or
The slurry formed after the separation of the first hydrocyclone enters the second waterpower from the discharging opening of the first hydrocyclone
Cyclone, overflow of the relatively small crystal grain through the first hydrocyclone formed after the separation of the first hydrocyclone
Mouth continues to grow up into crystallization reaction area；The slurry formed after the second hydrocyclone separates again is from the second hydrocyclone
Discharging opening enter segmented vacuum belt dewaterer, the relatively small crystalline substance formed after the second hydrocyclone separates again
Overflow head piece of the body particle through the second hydrocyclone continues to grow up into crystallization reaction area；
3) the first drying zone of the vacuum box of segmented vacuum belt dewaterer is sucked by vacuum to the slurries above it
Dehydration, until no liquid above the filter cake of generation, the filtrate separated after dehydration and gas then sequentially enter the first gas-liquid collector,
First knockout drum, final filtrate are back to the crystallization reaction area of denitration gypsum cleaning apparatus or remove downstream links, gas quilt
Vavuum pump is taken away；The filter cake separated after dehydration is sent to the second drying zone, opens Washing of Filter Cake device and filter cake is cleaned, pass through
The vacuum suction effect of second drying zone, the cleaning solution and gas of separation enter the second drying zone, then sequentially enter the second gas
Liquid collector, the second knockout drum, final cleaning solution flow to washing collection, and gas is taken away by vavuum pump.
The size shape of gypsum crystal, it is widely different for the physical property of plastering.It is clean in described denitration gypsum
In net method, hydrocyclone plays a part of being classified crystal grain size, and the overflow that hydrocyclone is separated
Crystal grain in rework solution is back to the key that crystallization reaction area is the size and crystallization rate that influence crystalline particle.It is and existing
Denitration gypsum cleaning apparatus not to reactor body carry out subregion, have impact on the size and crystallization rate of crystalline particle.
Relative to prior art, the beneficial effects of the utility model are：
1) denitration gypsum cleaning apparatus of the present utility model is true by adjustable chemical gypsum crystallization reactor and segmented
Empty belt dewaterer composition, adjustable chemical gypsum crystallization reactor can effectively control the size of gypsum crystal, Jin Ershi
Now sufficient separation of solid and liquid, the efficiency and filter cake cleaning performance of the dehydration of segmented vacuum belt dewaterer are improved, is obtained
Filter cake can more meet the use demand of the downstream industries such as building material industry, plastering industry, New Inorganic Materials；
2) the segmented vacuum belt dewaterer of denitration gypsum cleaning apparatus of the present utility model employs sectional design,
Both the separation for the liquid containing stereoplasm can have been realized, can ensure that the filtrate of separation is not contaminated with diluting again, while ensure to isolate
Solid filter cake sufficiently cleaned and be dehydrated.The filtering material cleaning device of segmented vacuum belt dewaterer is used with metering
During combined type spray system, there is accurate controllability, i.e., efficiently save again.
Brief description of the drawings
Fig. 1 is existing denitration gypsum cleaning apparatus structural representation；
Fig. 2 is the utility model denitration gypsum cleaning apparatus structural representation；
Fig. 3 is the structural representation of the segmented vacuum belt dewaterer of the utility model denitration gypsum cleaning apparatus；
Fig. 4 is the structural representation of the filtering material cleaning device of the utility model denitration gypsum cleaning apparatus.
Embodiment
The purpose of this utility model is that solve the by-product denitration gypsum quality purification of alkali factory, deviates from salt, to meet that is produced from downstream
The use demand of industry, while ensure that original salt saltwater brine is not diluted, for needed for the production of body downstream, it is ensured that reach sufficiently solid
The purpose of liquid separation.
A core of the present utility model, it is the separation of solid-liquid mixed serum, and the big of gypsum crystal is generated by adjusting
It is small, reach the effect for contributing to separation of solid and liquid, have particular/special requirement for cleaner liquid, carried out simultaneously for the solid isolated clean
The new device of utilitarian design and technique except salt treatment.
Common vacuum belt dewaterer, only pay attention to dehydrating effect, solid wetness after dehydration etc., and for dehydration
Cleaner liquid afterwards is not concerned with.The utility model has redesigned segmented on the basis of original vacuum belt dewaterer
Vacuum dehydration system, a technique entirety is collectively constituted with reference to adjustable gypsum crystallization reactor, can met simultaneously pair
In the requirement of solid-liquor separation, the requirement of solid (filter cake) ion matter (salt), and can meets not to be diluted for cleaner liquid
With the requirement of pollution.The size generated simultaneously by adjusting gypsum crystal reaches the optimal effectiveness of separation of solid and liquid.And innovating makes
, can be efficient with the combined type spray system with metering, saving reaches cleaning performance.
To better illustrate the purpose of this utility model, technical scheme and advantage, below in conjunction with specific embodiment to this
Utility model is described further.
As shown in figure 1, denitration gypsum cleaning apparatus of the present utility model, including adjustable chemical gypsum crystallization reactor
1 and segmented vacuum belt dewaterer 2, adjustable chemical gypsum crystallization reactor 1 include cone-shaped reactor body 11, taper
The inner chamber of reactor body 11 is separated to form positioned at middle crystallization reaction area 13 by two vertical clapboards 12 fixed from top to bottom
With positioned at the clarified separation area 14 of both sides, the bottom of vertical clapboard 12 gap is left with the bottom of cone-shaped reactor body 11；Crystallization
Reaction zone 13 is provided with reaction solution entrance and the first overflow rework solution entrance, and reaction solution adds pipe 131 and stretched into from reaction solution entrance
Crystallization reaction area 13；In the present embodiment, crystallization reaction area 13 is additionally provided with vacuum belt filtrate and returns to entrance；Clarified separation area 14
Top be provided with overflow outlet 141, the charging of the serum outlet of the bottom of cone-shaped reactor body 11 and the first hydrocyclone 15
Mouth connection, the overflow head piece of the first hydrocyclone are connected with the first overflow rework solution entrance by one-level overflow return duct 151
Logical, the bottom of the first hydrocyclone 15 is provided with discharge gate, discharge gate and the segmented vacuum belt of the first hydrocyclone 15
The charging aperture connection of dewaterer 2, in the present embodiment, discharge gate and the segmented vacuum belt of the first hydrocyclone 15 take off
The first charging aperture connection of water dispenser 2.The overflow head piece of first hydrocyclone and the first overflow rework solution entrance pass through one
Level overflow return duct connection, the crystallization reaction area is stretched into one end of one-level overflow return duct, in order that the crystalline substance that must be obtained
Body granular size is more uniformly distributed, the termination of one-level overflow return duct should be located at the relatively low position of reactor (for example, middle part with
Lower region), particular location is depending on size needed for crystal.First hydrocyclone can be adjusted, depending on downstream gypsum industry
For the demand of gypsum crystal size, to adjust.
Further, the crystallization reaction area 13 is additionally provided with agitator 17.Agitator 17 is preferably speed-adjustable stir device.Stirring
The setting of device 17 may be such that reactant uniformly mixes contact, improve reaction speed.
Further, the crystallization reaction area 13 is additionally provided with compressed air purging pipe 18, the bottom of compressed air purging pipe 18
The conical lower portion of the cone-shaped reactor body 11 is closed at end.Preferably, compressed air purging pipe 18 is provided with regulating valve.Compression
Booster action is played in being arranged in crystallization reaction for air scavenging conduit, can be with for the fouling on crystallization reactor bottom and wall
Play a part of purging to remove.
Further, the adjustable chemical gypsum crystallization reactor 1 also includes the second hydrocyclone 16, the second water
The charging aperture of power cyclone 16 connects with the discharge gate of first hydrocyclone 15, middle to be pressurizeed by pump by the first waterpower
The feed liquid of cyclone discharge is pumped into the second hydrocyclone, and the bottom of the second hydrocyclone 16 is provided with discharge gate, the second waterpower
The discharge gate of cyclone 16 connects with the second charging aperture of segmented vacuum belt dewaterer 2；
The crystallization reaction area 13 is provided with the second overflow rework solution entrance, the overflow head piece of the second hydrocyclone 16 with
Second overflow rework solution entrance is connected by two level overflow return duct 161, and two level overflow return duct 161 stretches into crystallization reaction
In area 13, in order that the crystal grain size that must be obtained is more uniformly distributed, stably, the termination that the second overflow returns to liquid pipe should be located at instead
The relatively low position of device (for example, middle part region below) is answered, particular location is depending on size needed for crystal.Because gypsum reacts molten
Liquid characteristic, cause crystallizing range and time different, in order to realize the solid-liquid for keeping excellent under the conditions of different reaction solutions point
From effect and required crystal size, the operation controllability of reactor is lifted, crystallization reactor of the present utility model is additionally provided with
Second hydrocyclone.Set between the discharge gate of the charging aperture of second hydrocyclone 16 and first hydrocyclone 15
There is regulating valve, for controlling the slurry formed after the concentration of the first hydrocyclone to enter the second hydrocyclone 16.Second water
Power cyclone can equally be adjusted, the demand depending on downstream gypsum industry for gypsum crystal size, to adjust.
As shown in Fig. 2 segmented vacuum belt dewaterer 2 includes expanded rubber belt 21, filter cloth is supported by thereon, its bottom
Portion is provided with fluid hole, and expanded rubber belt 21 drives filter cloth from upstream to downstream drive under the driving of belt drives wheel, with auxiliary
Processing operation of the slurry at diverse location completed on filter cloth is helped, specifically, the cross section of the expanded rubber belt 21 is
Flute profile, top are used for supporting filter cloth, and vacuum chamber is formed at bottom, and unobstructed apocenosis passage, gas liquid two-phase flow resistance are provided for filtering
Power is small, with good air-tightness during suction filtration, so as to obtain higher vacuum motive force；Feed arrangement 23, it is located at porous rubber
The upstream of rubber belt 21, charging aperture are located at the top of expanded rubber belt 21, and in the present embodiment, charging aperture is provided with two, point
Wei not first charging aperture and second charging aperture；And Washing of Filter Cake device 24；The lower section of expanded rubber belt 21 is provided with vacuum box
22, vacuum box 22 is divided for the first drying zone 222 and the second drying zone 223 by dividing plate 221, wherein the first drying zone 222 is used for pair
Pending slurries carry out vacuum suction dehydration until expanded rubber belt 21 on slurries waterline disappear to be formed filter cake (namely
No liquid above filter cake), the filtrate of separation enters the first drying zone 222, and the second drying zone 223 is used to spray Washing of Filter Cake device
Filter cake after leaching carries out vacuum suction dehydration, and the cleaning solution of separation enters the second drying zone 223；The lower section of vacuum box 22, along porous
The transmission direction of balata belt 21 is sequentially provided with the first gas-liquid collector 25 and the second gas-liquid collector 26, the He of the first gas-liquid collector 25
Second gas-liquid collector 26 connects with the first drying zone 222 of vacuum box 22 and the second drying zone 223 respectively；It should be noted that
Dividing plate 221 needs among vacuum box 22 to separate, so as to avoid filtrate from mutually polluting；The liquid outlet of first gas-liquid collector 25 and
The gas-liquid inlet communication of one knockout drum 27, the gas-liquid of the liquid outlet of the second gas-liquid collector 26 and the second knockout drum 28 are entered
Bleeding point of the gas outlet of mouth connection, the first knockout drum 27 and the second knockout drum 28 respectively with vavuum pump 29 connects,
It should be noted that vavuum pump can share one, in addition to increasing vacuum capability, two vavuum pumps also can be selected and connect respectively
First knockout drum and the second knockout drum corresponding to connecing.First knockout drum 27 and the second knockout drum 28 also divide
Not She You liquid outlet, in the present embodiment, the liquid outlet of the first knockout drum 27 can crystallize anti-with adjustable chemical gypsum
Answer the vacuum belt filtrate of device 1 to return to entrance to connect by vacuum belt filtrate return duct 132；Also downstream work can directly be gone to
Skill link, (depending on for filtrate quality requirement).Washing of Filter Cake device 24 is positioned at corresponding with the second gas-liquid collector 26
The corresponding position of the top of expanded rubber belt 21；
Further, as shown in figure 3, the denitration gypsum cleaning apparatus also includes filtering material cleaning device, the filtrate is clear
Cleaning device includes flushing line 31, water pump (not shown), water tank (not shown) and the distribution being arranged on above expanded rubber belt
Device 32, one end of flushing line 31 are connected with distributor 32, and its other end is connected by water pump with water tank.
Further, adjustable flow is installed on the flushing line 31 between the distributor 32 and the water pump
Meter 33.Adjustable flowmeter causes segmented vacuum belt dewaterer to have accurate controllability, i.e., efficiently saves again.Tool
Body, the distributor is provided with two, transmission direction parallel arranged of two distributors along expanded rubber belt.Imitated depending on cleaning
Fruit, the number of distributor can be increased.
Segmented vacuum belt dewaterer reaches dehydration purpose to being sent into slurries therein by vacuum suction, specific processing
Process is specific as follows：Slurries are distributed on filter cloth by feed arrangement, when slurries are sent at the first gas-liquid collector, first
The slurries above it are carried out with vacuum suction dehydration for gas-liquid collector until the filter cake top no liquid of generation, the slurries shape after dehydration
The fluid hole of the filtrate separated into solid filter cake after dehydration and gas (i.e. air) through expanded rubber belt flows into the first gas-liquid collection
Pipe, subsequently enters the first knockout drum, liquid outlet of the filtrate through the first knockout drum is finally to denitration gypsum cleaning apparatus
Crystallization reaction area, or directly go to downstream process line, (depending on for filtrate quality requirement), gas is taken away by vavuum pump；
When filter cake is transferred at the second gas-liquid collector, opens Washing of Filter Cake device and filter cake is cleaned, through the second gas-liquid collector
Vacuum suction effect, the cleaning solution and gas of separation enter the second gas-liquid collector, subsequently enter the second knockout drum, finally
Cleaning solution flow to washing collection (rather than being mixed with filtrate, be diluted to filtrate), and gas is taken away by vavuum pump, finally
Slurries, which are segmented after formula vacuum belt dewaterer cleaning and dewatering, to be formed qualified filter cake and falls into gypsum storehouse through dump skip in discharge zone.
Segmented vacuum belt dewaterer of the present utility model takes off solid-liquid mixed serum according to the characteristic of vacuum absorption
Water, above filter cake during no liquid (disappearance of slurries waterline), gas-liquid collector is segmented, that is, formed the first gas-liquid collector and
Second gas-liquid collector, while the first knockout drum of corresponding configuration and the second knockout drum, carry out gas-liquid separation, gas-liquid point
From vavuum pump can share, can also be respectively configured.
On expanded rubber belt, solid-liquid mixed serum passes through vacuum suction corresponding to the first gas-liquid collector, filtrate enters
First gas-liquid collector, solid are stayed on filter cloth, now, addition or interference of the filtrate being extracted without any foreign substance, and directly
Downstream process link is connect, meets the requirement that filtrate is not contaminated or is diluted.The solid stayed on filter cloth, referred to as filter cake, with
Expanded rubber belt and advance into second segment, i.e., belt epimere corresponding to the second gas-liquid collector.The two sections of filter cakes now assembled
Rinse line (i.e. Washing of Filter Cake device, washable), unlatching, filter cake can be cleaned, wash away remained in solid filter cake it is solvable
Property material, such as soluble-salt, in order to reach quality requirement of the downstream industry for solid, filter cake rinses line can also increase in right amount
Add.The solution or clear water of line are rinsed, through vacuum filtration, the second gas-liquid collector is entered, flows into the second knockout drum, enter promoting the circulation of qi
Liquid separates, and cleaning liquid enters other architecture system, do not mixed with the former filtrate filtered in first paragraph belt, each have their own to go
Place.The filtrate of such first dewatering period, i.e., not comtaminated or dilution filtrate, downstream links are gone to by dedicated line.Second
The filtrate of dewatering period, due to having participated in clear water or other solution, then enter other designated treatment link.Meanwhile by two sections
Dehydration, and the solid that clear (water) is washed, reach using being stored in the warehouse for after standard, entering design.
Adjustable chemical gypsum crystallization reactor of the present utility model is to be difficult to adjust for common crystallization reactor
The drawbacks of, redesign, the peculiar function of R. concomitans hydrocyclone, concentrated for slurries, and for therein solid
Body is split according to particle size, and the vacuum belt that big solid crystal particles go to downstream is dehydrated, and small solid is brilliant
Body particle reenters reactor, continues to grow up as crystal seed or little particle crystal with the liquid line of return.Due to solution in slurries
Or have different qualities, cause crystallizing range and time different, therefore in liquid (cyclone overflow) line of return, devise two groups of water
Power cyclone, one group can be opened, can also open two groups, be determined on a case-by-case basis.In reactor, solid is with reaction caused by crystallization reaction
Device bottom line enters hydrocyclone group, carries out concentrating and separating, and bulky grain solid crystal is dehydrated to downstream vacuum belt, into
For final gypsum product.Solid small particles crystal returns to crystallization reactor with one-level slurries overflow line, or two level slurries overflow line, then ties
Crystalline substance is grown up.Filtrate after segmented vacuum belt dewatering, crystallization reactor can be returned to the filtrate line of return, or be directly discharged into
Lower procedure.(depending on the quality of dehydration filtrate).The liquid of clarification at the top of crystallization reactor, work is discharged downstream from overflow outlet
Sequence.Complete crystallization reaction and separation.
Adjustable chemical gypsum crystallization reactor in the utility model, the size of gypsum crystal can be effectively controlled,
The crystal of gypsum, and crystal formation have direct correlation, also cease breath simultaneously for the performance of downstream plastering for dehydrating effect
It is related.
The present embodiment additionally provides denitration gypsum cleaning method, comprises the following steps：
1) bittern water, ionic calcium soln are injected into denitration gypsum from the reaction solution entrance of described denitration gypsum cleaning apparatus
The crystallization reaction area of cleaning apparatus, the slurries obtained after bittern water, ionic calcium soln reaction enter the first waterpower from serum outlet
Cyclone；
2) the first hydrocyclone concentrates to slurries, and solid therein is split according to particle size；Through
The slurry formed after the separation of first hydrocyclone is dehydrated from the discharging opening of the first hydrocyclone into segmented vacuum belt
Machine, overflow head piece of the relatively small crystal grain through the first hydrocyclone formed after the separation of the first hydrocyclone enter
Enter crystallization reaction area to continue to grow up；Or
The discharging opening of slurry from the first hydrocyclone that is formed after the separation of the first hydrocyclone is pressurized to enter the
Two hydrocyclones, the relatively small crystal grain formed after the separation of the first hydrocyclone is through the first hydrocyclone
Overflow head piece continues to grow up into crystallization reaction area；The slurry formed after the second hydrocyclone separates again is from the second waterpower
The discharging opening of cyclone enters segmented vacuum belt dewaterer, is formed relatively after the second hydrocyclone separates again
Overflow head piece of the small crystal grain through the second hydrocyclone continues to grow up into crystallization reaction area；
3) the first drying zone of the vacuum box of segmented vacuum belt dewaterer is sucked by vacuum to the slurries above it
Dehydration, until no liquid above the filter cake of generation, the filtrate separated after dehydration and gas then sequentially enter the first gas-liquid collector,
First knockout drum, final filtrate are back to the crystallization reaction area of denitration gypsum cleaning apparatus or remove downstream links, gas quilt
Vavuum pump is taken away；The filter cake separated after dehydration is sent to the second drying zone, opens Washing of Filter Cake device and filter cake is cleaned, pass through
The vacuum suction effect of second drying zone, the cleaning solution and gas of separation enter the second drying zone, then sequentially enter the second gas
Liquid collector, the second knockout drum, final cleaning solution flow to washing collection, and gas is taken away by vavuum pump.
The size shape of gypsum crystal, it is widely different for the physical property of plastering.In the denitration stone of the present embodiment
In cream cleaning method, hydrocyclone (including the first hydrocyclone and second hydrocyclone) is played to crystal grain size
The effect being classified, and it is shadow that the crystal grain in the overflow rework solution of hydrocyclone separation is back into crystallization reaction area
Ring the size of crystalline particle and the key of crystallization rate.
Finally, it should be noted that be explained in detail with reference to preferred embodiment to the utility model, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this
The spirit and scope of utility model technical scheme.
Claims (9)
1. adjustable chemical gypsum crystallization reactor, it is characterised in that：Including cone-shaped reactor body, cone-shaped reactor body
Inner chamber be separated to form by two vertical clapboards fixed from top to bottom positioned at middle crystallization reaction area and the clarification positioned at both sides
Gap is left in Disengagement zone, the bottom of vertical clapboard and the bottom of cone-shaped reactor body, crystallization reaction area be provided with reaction solution entrance and
First overflow rework solution entrance, the top in clarified separation area export provided with overflow, the serum outlet of cone-shaped reactor body bottom
Connected with the charging aperture of the first hydrocyclone, the overflow head piece of the first hydrocyclone and the first overflow rework solution entrance connect
Logical, the bottom of the first hydrocyclone is provided with discharge gate.
2. adjustable chemical gypsum crystallization reactor according to claim 1, it is characterised in that：The crystallization reaction area
Inside it is additionally provided with agitator.
3. adjustable chemical gypsum crystallization reactor according to claim 1, it is characterised in that：The crystallization reaction area
Compressed air purging pipe is additionally provided with, the conical lower portion of the cone-shaped reactor body is closed in the bottom of compressed air purging pipe.
4. adjustable chemical gypsum crystallization reactor according to claim 1, it is characterised in that：Adjustableization
Learning gypsum crystallization reactor also includes the second hydrocyclone, the charging aperture of the second hydrocyclone and first hydraulic cyclone
The discharge gate connection of device, it is middle that the feed liquid of the first hydrocyclone discharge is pumped into the second hydrocyclone by pump pressurization, second
The bottom of hydrocyclone is provided with discharge gate；
The crystallization reaction area is provided with the second overflow rework solution entrance, and overflow head piece and the second overflow of the second hydrocyclone are returned
Return the connection of liquid entrance.
5. denitration gypsum cleaning apparatus, it is characterised in that：Including adjustable chemistry according to any one of claims 1 to 4
Gypsum crystallization reactor and segmented vacuum belt dewaterer, segmented vacuum belt dewaterer include expanded rubber belt, entered
Expect device, Washing of Filter Cake device, expanded rubber belt under the driving of belt drives wheel from upstream to downstream drive, feed arrangement
Located at the upstream of expanded rubber belt, the lower section of expanded rubber belt is provided with vacuum box, and vacuum box is divided into the first dehydration by dividing plate
Area and the second drying zone, wherein the first drying zone forms filter cake for pending slurries to be carried out with vacuum suction dehydration, separate
Filtrate enter the first drying zone, the second drying zone is used to carrying out vacuum suction to the filter cake after Washing of Filter Cake device spray de-
Water, the cleaning solution of separation enter the second drying zone；First is sequentially provided with below vacuum box, along the transmission direction of expanded rubber belt
Gas-liquid collector and the second gas-liquid collector, the first gas-liquid collector and the second gas-liquid collector respectively with the first drying zone of vacuum box and
Two drying zones connect, the liquid outlet of the first gas-liquid collector and the gas-liquid inlet communication of the first knockout drum, the second gas-liquid collector
Liquid outlet and the second knockout drum gas-liquid inlet communication, the gas outlet of the first knockout drum and the second knockout drum
Connected respectively with the bleeding point of vavuum pump, the first knockout drum and the second knockout drum further respectively have liquid outlet；Filter cake
Wash mill is located at the corresponding position above expanded rubber belt corresponding with the second gas-liquid collector；
The discharge gate of the first hydrocyclone of adjustable chemical gypsum crystallization reactor connects with the charging aperture of feed arrangement；
The crystallization reaction area of adjustable chemical gypsum crystallization reactor is additionally provided with vacuum belt filtrate and returns to entrance, vacuum belt
Filtrate returns to entrance and connected with the liquid outlet of the first knockout drum.
6. denitration gypsum cleaning apparatus according to claim 5, it is characterised in that：The cross section of the expanded rubber belt
For flute profile, the fluid hole is located at its bottom, and filter cloth is supported on the top of expanded rubber belt.
7. denitration gypsum cleaning apparatus according to claim 5, it is characterised in that：The denitration gypsum cleaning apparatus also wraps
Filtering material cleaning device is included, the filtering material cleaning device includes flushing line, water pump, water tank and is arranged on above expanded rubber belt
Distributor, one end of flushing line is connected with distributor, and its other end is connected by water pump with water tank.
8. denitration gypsum cleaning apparatus according to claim 7, it is characterised in that：Between the distributor and the water pump
Flushing line on adjustable flowmeter is installed.
9. denitration gypsum cleaning apparatus according to claim 7, it is characterised in that：The distributor is provided with two, two
Transmission direction parallel arranged of the distributor along expanded rubber belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078576.0U CN206654743U (en) | 2016-09-23 | 2016-09-23 | Adjustable chemical gypsum crystallization reactor and denitration gypsum cleaning device comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078576.0U CN206654743U (en) | 2016-09-23 | 2016-09-23 | Adjustable chemical gypsum crystallization reactor and denitration gypsum cleaning device comprising same |
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| Publication Number | Publication Date |
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| CN206654743U true CN206654743U (en) | 2017-11-21 |
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|---|---|---|---|
| CN201621078576.0U Expired - Fee Related CN206654743U (en) | 2016-09-23 | 2016-09-23 | Adjustable chemical gypsum crystallization reactor and denitration gypsum cleaning device comprising same |
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| CN (1) | CN206654743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745153A (en) * | 2016-09-23 | 2017-05-31 | 封祁宁 | denitration gypsum cleaning device and method |
| CN113262561A (en) * | 2021-07-05 | 2021-08-17 | 沈阳铝镁设计研究院有限公司 | Fine seed slurry concentration device and method |
-
2016
- 2016-09-23 CN CN201621078576.0U patent/CN206654743U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745153A (en) * | 2016-09-23 | 2017-05-31 | 封祁宁 | denitration gypsum cleaning device and method |
| CN106745153B (en) * | 2016-09-23 | 2019-02-01 | 封祁宁 | denitration gypsum cleaning device and method |
| CN113262561A (en) * | 2021-07-05 | 2021-08-17 | 沈阳铝镁设计研究院有限公司 | Fine seed slurry concentration device and method |
| CN113262561B (en) * | 2021-07-05 | 2023-03-10 | 沈阳铝镁设计研究院有限公司 | Fine seed slurry concentration device and method |
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