CN117046361B - Device for wet feeding of powder materials and water treatment method thereof - Google Patents
Device for wet feeding of powder materials and water treatment method thereof Download PDFInfo
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- CN117046361B CN117046361B CN202311316641.3A CN202311316641A CN117046361B CN 117046361 B CN117046361 B CN 117046361B CN 202311316641 A CN202311316641 A CN 202311316641A CN 117046361 B CN117046361 B CN 117046361B
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- 239000000843 powder Substances 0.000 title claims abstract description 161
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 239000000463 material Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000002002 slurry Substances 0.000 claims abstract description 172
- 238000002156 mixing Methods 0.000 claims abstract description 92
- 238000003860 storage Methods 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 239000010865 sewage Substances 0.000 claims abstract description 43
- 238000005273 aeration Methods 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 211
- 238000009736 wetting Methods 0.000 claims description 80
- 230000007246 mechanism Effects 0.000 claims description 76
- 238000002360 preparation method Methods 0.000 claims description 61
- 239000000428 dust Substances 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 16
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 25
- 229910052799 carbon Inorganic materials 0.000 description 95
- 230000032258 transport Effects 0.000 description 11
- 230000001276 controlling effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000619 316 stainless steel Inorganic materials 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012254 powdered material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/831—Devices with consecutive working receptacles, e.g. with two intermeshing tools in one of the receptacles
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
Abstract
The invention relates to the technical field of sewage advanced treatment, and discloses a device for feeding powder materials by a wet method and a water treatment method thereof. Meanwhile, a stirrer and a submersible sewage pump are arranged in the liquid storage device, and the slurry is subjected to intermittent aeration treatment and stirring through the existing process; the submersible sewage pump is respectively connected with a backflow pipeline, a slurry discharge pipeline and a water adding pipeline, wherein the backflow pipeline can enable slurry to flow back into the liquid storage device, the slurry discharge pipeline can enable the slurry to be added into a water body, and the water adding pipeline can enable the slurry to be transported to the mixing device to be mixed with powder.
Description
Technical Field
The invention relates to the field of advanced sewage treatment, in particular to a device for wet feeding of powder materials and a water treatment method thereof.
Background
Activated carbon, which is a good adsorbent, is widely used in the field of environmental protection worldwide because of its integration of advantages such as large surface area and good chemical stability, among which water treatment is the most common. Powdered activated carbon is a water treatment process with the functions of removing color, organic matters, smell and the like, and with the application in recent years, the addition of powdered activated carbon is an important method for paying attention to water factories. Because of the sudden water pollution caused by frequent explosion in recent years, more and more water works recognize the importance of water pollution treatment, so that in order to cope with the special situations, a powder activated carbon adding process is added in many water works.
At present, two common processes for adding powdered activated carbon are available, one is to prepare powdered activated carbon into slurry with the concentration of about 10%, and the slurry is conveyed to an adding point by a metering pump, and the mode is called a wet process; the other is to directly and quantitatively add powdered activated carbon into a water injector by a quantitative feeding device, and add the carbon powder into an adding point by the water injector. If the mixing of the carbon powder and the water in the mixing tank is considered, the wet process of adding the activated carbon is considered to be easier to ensure the precision compared with the dry process of adding the activated carbon, because the carbon powder and the water can be stirred in the mixing tank to obtain the powder slurry which is very uniformly mixed, and the dispersion uniformity in the pipeline is better.
The device comprises a carbon pulp tank, a jet pump and a gas-liquid separator, when carbon is conveyed to the carbon pulp tank, water sequentially passes through the jet pump, the gas-liquid separator and a communicating pipe of the carbon pulp tank, then enters the carbon pulp tank, carbon powder is input in synchronization with water inflow, when water inflow flows through the jet pump, air in the carbon pulp tank is sucked into the jet pump, the inside of the carbon pulp tank is in a micro negative pressure state, carbon powder suspended in the air is sucked into the jet pump together with the air and then enters the gas-liquid separator after being fully mixed with the water, the air is discharged after being separated from the water in the gas-liquid separator, and the carbon powder after being fully mixed with the water sequentially passes through the carbon pulp tank, the jet pump and the gas-liquid separator along with the water flow, and then enters the communicating pipe of the carbon pulp tank and the carbon pulp tank after being conveyed to the carbon pulp tank. According to the invention, micro negative pressure is formed in the carbon slurry tank through the suction effect of the jet pump, so that carbon powder entering the jet pump is collided and mixed with water flow, water molecules quickly wet activated carbon particles to form stable activated carbon suspension, and the problem of overflow and dust emission of trace carbon powder pumped from the carbon slurry tank is solved.
The device rolls the active carbon into finer powder through two rotating material pressing rollers, extrudes the powdery active carbon into the interior of a material mixing pipe through a rotating material conveying auger to be mixed and stirred with water, finally discharges active carbon slurry which is fluid, the fluid active carbon slurry is input into sewage and can be rapidly diffused in the water to be fully mixed with the sewage, and the active carbon can fully adsorb pollutants in the sewage.
However, although the above prior art can mix powdered activated carbon with water to form a slurry, the powdered activated carbon has at least the following technical problems in the slurry preparation process: 1. powder activated carbon is easily separated into dust and leaked in the process of conveying the powder activated carbon to a preparation tank in an inclined spiral manner, so that the powder concentration in a production workshop is too high, and certain potential safety hazards exist; 2. the activated carbon is affected by moisture absorption of the activated carbon, the agglomeration problem easily occurs in the preparation process of the carbon slurry, and the agglomerated activated carbon cannot be broken through stirring; 3. the activated carbon is in a suspension state in the solution, is easy to deposit at the bottom of a pipeline and a preparation tank, and can not be uniformly suspended by common stirring, so that the deposition of the activated carbon is wasted; 4. the carbon slurry belongs to suspension liquid, the solid content is high, the blockage is easy to be caused to an adding pipeline and a jet pump, the fault rate of the jet pump is high, the maintenance frequency is increased, meanwhile, the output flow of a screw pump is small, and a plurality of jet pumps are needed for adding at a plurality of points, so that the investment cost of the existing adding system is high, and the maintenance cost is high.
Disclosure of Invention
The invention provides a device for wet feeding of powder materials in order to overcome the technical problems in the prior art.
Another object of the invention is to provide a water treatment method for a device for wet dosing of powder material.
The device for wet feeding of the powder materials comprises a stock device, a slurry mixing device for preparing high-concentration slurry and a liquid storage device for preparing low-concentration slurry, wherein the mixing device is connected with the stock device, and the liquid storage tank device for preparing low-concentration slurry is communicated with the mixing device;
The material storage device is also connected with the bale breaker and comprises a vacuum aspirator, a dust remover and a powder bin; the powder bin is connected to the bale breaker through the vacuum feeder and is used for sucking powder materials in the bale breaker into the powder bin, and the inner cavity at the bottom of the powder bin is cone-shaped; the dust remover is arranged at the top of the powder bin and is used for removing dust discharged by the powder bin;
The mixing device comprises a screw feeder, a wetting mechanism and a crushing mixing pump; the spiral feeder is connected to a discharge port of the storage device and is used for conveying powder materials; the wetting mechanism is arranged at the feeding tail end of the spiral feeder and is used for rapidly mixing powder with water; the crushing and mixing pump is arranged at the bottom end of the wetting mechanism and used for mixing and scattering the agglomerated materials from the wetting mechanism into uniform slurry;
the liquid storage device is provided with a primary preparation cavity, and the primary preparation cavity is provided with a plurality of aeration pipes and a stirring device; the plurality of aeration pipes are connected with the negative pressure device, so that the first-stage preparation cavity realizes the interval aeration; the stirring device is arranged in the first-stage preparation cavity and is used for fully mixing the high-concentration slurry with water;
the negative pressure device comprises an air compressor, an air storage tank and a cold dryer; the air compressor is communicated with one end of the air storage tank and is used for compressing and storing air in the air storage tank; the cold dryer is connected to the other end of the air storage tank and is used for drying water vapor in the compressed air.
Preferably, the negative pressure device is communicated with the aeration pipe through a through pipe, and high-pressure gas is injected into the aeration pipe, so that the gas bursts to form bubbles in the aeration pipe, and aeration is realized.
Preferably, the powdered material comprises powdered activated carbon.
Preferably, the unpacking machine is used for driving mechanical equipment to realize unpacking treatment of the powder materials, and the vacuum aspirator can realize that the unpacked powder materials are transported into the powder bin through the aspiration pipe.
Through the design of the technical scheme, the material storage process comprises the following steps: unpacking the powder materials by the unpacking machine, and then conveying the unpacked powder materials to a powder bin by the vacuum absorber through air pressure change.
Further, the crushing mixing pump is provided with a crushing cutting turntable, and the crushing cutting turntable is driven by a motor to perform rotary cutting.
Preferably, the rotary disc of the crushing and mixing pump is made of stainless steel.
Further, the inner cavity of the wetting mechanism is cone-shaped, a water inlet is formed in the inner cavity of the wetting mechanism, and a water inlet pipe is sleeved on the water inlet; the water in the water inlet pipe enters the inner cavity of the wetting mechanism from the water inlet in a tangential mode to form vortex water flow, and the powder materials fall into the vortex water flow for a plurality of times in a small amount to be mixed into high-concentration powder slurry, so that the powder slurry is quickly mixed with the vortex water flow, and the powder activated carbon is prevented from being attached to the inner wall of the wetting mechanism.
Further, a gate valve is arranged at the joint of the spiral feeder and the material storage device, and the gate valve is used for accurately controlling the conveying equivalent of the powder.
Further, the mixing device is further provided with an isolation valve and an anti-backwater sensor, the isolation valve is used for connecting the spiral feeder with the wetting mechanism, and the anti-backwater sensor is arranged in the wetting mechanism and used for controlling the isolation valve to be opened or closed.
Preferably, the backwater prevention sensor is electrically connected with the isolation valve, and is used for detecting abnormality in the wetting mechanism, and powder materials in the wetting mechanism can be controlled by controlling the isolation valve to be opened or closed.
Through the technical scheme design, the mixed configuration process comprises the following steps: according to real-time water yield and ratio concentration, come accurate control screw feeder and carry equivalent powder material, remove powder storehouse discharge gate valve according to the demand, the powder material drops to screw feeder on, screw feeder carries powder material to the wetting mechanism in, the wetting mechanism inner chamber is the awl shape, the wetting mechanism inner chamber is provided with the water inlet, the inlet tube has been cup jointed to the water inlet, water enters into the wetting mechanism in the inlet tube with tangential mode from the water inlet, thereby form vortex rivers in the wetting mechanism, the powder material falls into vortex rivers in a small amount many times and mixes, avoid powder material to adhere to the inner wall at the wetting mechanism, the mixed liquid enters into broken mixing pump, this pump is equipped with a broken cutting carousel at the solid-liquid inlet, the carousel material is 316 stainless steel, be connected with the motor main shaft, the rotational speed can reach 1500RPM, thoroughly break up all clustered powder materials through quick cutting function, then mix with water and enter into the preparation jar in, accomplish the mixed configuration process.
Further, the aeration pipes are opened at 30-35 degrees obliquely downwards, the size of the holes is 2-3 mm, the arrangement space of the holes is 50-55 mm, and the arrangement space among a plurality of aeration pipes is 300-330 mm.
Preferably, the aeration pipe material is a PVC pipe, 30 degrees trompils downwards are inclined to the aeration pipe, and the hole size is 2mm, and the hole setting interval is 50mm, sets up the interval between a plurality of aeration pipes to be 300mm.
Further, the negative pressure device is also communicated with the bale breaker through a pipeline, and compressed air is supplied to the bale breaker; the negative pressure device is also communicated with the vacuum absorber through a pipeline; the negative pressure device is also communicated with the dust remover through a pipeline and provides air pressure and ash cleaning pulse air sources for the dust remover; the negative pressure device is also communicated with the bottom of the inner cavity of the powder bin through a pipeline to provide an air source for the powder bin.
Further, the liquid storage device is provided with a secondary preparation cavity, the secondary preparation cavity comprises a stirring device and a submersible sewage pump, the stirring device is arranged inside the secondary preparation cavity and used for improving uniformity of powder slurry, and the submersible sewage pump is arranged inside the secondary preparation cavity and used for discharging the powder slurry out of the liquid storage device.
Further, the drainage outlet of the submersible sewage pump is detachably connected with a slurry drainage pipeline for draining slurry into water; the drainage outlet of the submersible sewage pump is detachably provided with a backflow pipeline which is communicated with the secondary preparation cavity and is used for backflow stirring of slurry, so that deposition at the bottom is reduced; the drainage outlet of the submersible sewage pump is detachably provided with a water adding pipeline which is respectively communicated with the wetting mechanism and the crushing and mixing pump and is used for increasing the concentration of the prepared slurry.
Through the design of the technical scheme, the reflux process comprises the following steps: the submersible sewage pump is matched with the frequency converter, the flow can be regulated through frequency conversion, the outlet of the submersible sewage pump is detachably connected with a backflow pipeline, the backflow pipeline is provided with an electric valve, the backflow pipeline is led to the bottom of the secondary cavity, the submersible sewage pump can enable slurry to flow back into the secondary cavity through the backflow pipeline, and deposition of the slurry at the bottom of the secondary cavity can be effectively reduced; the submersible sewage pump outlet is also provided with a slurry discharging pipeline, and the submersible sewage pump can quantitatively throw slurry into a water body through the slurry discharging pipeline.
A water treatment method using the device for wet feeding of powder materials, comprising the following steps:
s1: the vacuum absorber conveys the powder material from the bale breaker to the powder bin;
S2: pre-wetting the powder material; removing a gate valve at a discharging position of a powder bin according to requirements, enabling powder materials to fall onto a spiral feeder, conveying the powder materials into a wetting mechanism by the spiral feeder, arranging a water inlet pipe in the wetting mechanism, entering the wetting mechanism through water injection, forming vortex water flow in the wetting mechanism, opening an isolation valve according to requirements, and enabling the powder materials to fall into the vortex water flow of the wetting mechanism for mixing and prewetting;
S3: the pre-wetted slurry is conveyed to a crushing and mixing pump, and the crushing and mixing pump cuts and breaks up the slurry and water to form slurry with required concentration and uniformity;
s4: the powder slurry in the crushing and mixing pump is conveyed into a first-stage preparation cavity, and the first-stage preparation cavity is used for stirring and aerating the powder slurry;
s5: the powder slurry processed in the first-stage preparation cavity is conveyed to a second-stage preparation cavity, and a submersible sewage pump in the second-stage preparation cavity quantitatively conveys the powder slurry back to the second-stage preparation cavity through a return pipeline; when necessary, the submersible sewage pump can transport and throw the slurry into water through a slurry discharge pipeline; if necessary, the submersible sewage pump may transport the slurry back into the wetting mechanism or/and the breaking and mixing pump through a water adding pipeline.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
The inner cavity of the wetting mechanism can enable water to form vortex fluid, powder materials can be rapidly mixed with water to prepare high-concentration powder slurry when falling into the wetting mechanism, and then the powder slurry enters the crushing mixing pump to be mixed with the water in a stirring manner; the gap of powder particles can be effectively reduced by pre-wetting treatment to obtain high-concentration powder slurry, so that the powder slurry is easier to dissolve and mix in water, the aggregation and the formation of coagulum of the powder particles are avoided, the powder slurry is more uniformly configured, finally, the powder slurry is mixed with water and enters a preparation tank, meanwhile, a first-stage stirrer and a dispersed aeration device are arranged in a liquid storage device, and air bubbles generated by the powder slurry are generated for aeration treatment by compressed air in the prior art at intervals, thereby solving the problem of deposition at the bottom of the liquid storage device and ensuring the uniformity of the powder slurry; the submersible sewage pump is arranged in the secondary cavity of the preparation tank, and is connected with a return pipeline which leads to the bottom of the secondary cavity, so that the submersible sewage pump can enable the slurry to flow back into the secondary cavity through the return pipeline, and the deposition of the slurry at the bottom of the secondary cavity can be effectively reduced; the submersible sewage pump outlet is also provided with a slurry discharging pipeline, and the submersible sewage pump can quantitatively throw slurry into a water body through the slurry discharging pipeline.
Drawings
FIG. 1 is a schematic diagram of a device for wet feeding of powder material;
wherein, 1, a material storage device; 101. unpacking machine; 102. a vacuum suction device; 103. a dust remover; 104. a powder bin; 2. a mixing device; 201. a screw feeder; 202. a wetting mechanism; 203. crushing and mixing pump; 204. a gate valve; 205. an isolation valve; 206. a backwater prevention sensor; 3. a liquid storage device; 301. a first-stage preparation cavity; 302. a second-stage preparation cavity; 303. an aeration pipe; 304. a stirring device; 305. a submersible sewage pump; 306. a slurry discharge pipeline; 307. a return line; 308. a water supply pipeline; 4. a negative pressure device; 401. an air compressor; 402. a gas storage tank; 403. and (5) a cold dryer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, based on the described embodiments, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the application.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Example 1
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
The material storage device 1 comprises a bale breaker 101, a vacuum absorber 102, a dust remover 103 and a powder bin 104, wherein a material suction opening of the vacuum absorber 102 is connected to the bale breaker 101 through a material suction pipe, a material discharge opening of the vacuum absorber 102 is connected to the powder bin 104, and the dust remover 103 is arranged at the top of the powder bin 104 and used for removing dust in the powder bin 104.
In the implementation process of this embodiment, the stock process: the unpacker 101 unpacks the powdered activated carbon, then opens the vacuum absorber 102 to generate enough air pressure, and the vacuum absorber 102 suction port transfers the activated carbon powder to the powder bin 104 through the suction pipe to complete the material storage process. The material storage device 1 can effectively reduce the leakage of the activated carbon powder, and avoid influencing the accuracy and stability of the prepared carbon slurry, thereby reducing the production quality.
Example 2
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
The mixing device 2 comprises a screw feeder 201, a wetting mechanism 202 and a crushing mixing pump 203, wherein a gate valve 204 is arranged at the discharge positions of the screw feeder 201 and the powder bin 104, the wetting mechanism 202 is arranged at the feeding end of the screw feeder 201 and is used for rapidly mixing powder with water, and the crushing mixing pump 203 is arranged at the bottom end of the wetting mechanism 202 and is used for mixing and scattering agglomerated materials from the wetting mechanism 202 into high-concentration carbon slurry.
In the implementation process of the present embodiment, the hybrid configuration process: according to the real-time water quantity and the proportioning concentration, the spiral feeder 201 is accurately controlled to convey equivalent powder activated carbon, a gate valve 204 at the discharging position of the powder bin 104 is moved away, the powder activated carbon falls onto the spiral feeder 201, the spiral feeder 201 conveys the powder activated carbon into the wetting mechanism 202, a water inlet pipe is arranged in the wetting mechanism 202, the water inlet pipe enters the wetting mechanism 202 through water injection, so that vortex fluid is formed in the wetting mechanism 202, the powder activated carbon can be quickly mixed with water when falling into an inner cavity of the wetting mechanism and cannot adhere to the wall surface of the inner cavity of the wetting mechanism 202, liquid obtained after mixing enters a crushing mixing pump 203, the crushing mixing pump 203 is provided with a crushing cutting turntable at a solid-liquid inlet, the turntable is made of 316 stainless steel and is connected with a motor spindle, the rotating speed can reach 1500RPM, all the agglomerated activated carbon is thoroughly dispersed through the quick cutting function of the crushing cutting turntable to form high-concentration carbon slurry, and then the high-concentration carbon slurry enters a liquid storage device 3 to be mixed with water, and the mixing configuration process is completed; the mixing device 2 can avoid the agglomeration phenomenon of the powder activated carbon in the direct mixing configuration with water.
Example 3
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
On the basis of embodiment 2, in the implementation process of this embodiment, the mixing device 2 is further provided with an isolation valve 205 and an anti-backwater sensor 206, the isolation valve 205 is used for connecting the screw feeder 201 with the wetting mechanism 202, and the anti-backwater sensor 206 is disposed in the wetting mechanism 202 and is used for controlling the isolation valve 205 to be opened or closed.
When the water source is in failure, the carbon slurry cannot be timely conveyed out from the wetting mechanism 202, the backwater prevention protection device can be automatically started, and at the moment, the gate valve 204 and the isolation valve 205 are closed, so that water can be effectively prevented from entering the inside of the feeder.
After the process of preparing the carbon slurry is completed, the gate valve 204 is closed, so that water vapor can be effectively prevented from entering the powder bin 104, and the inside powdered activated carbon absorbs moisture.
Example 4
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
The liquid storage device 3 is provided with a first-stage preparation cavity 301, the first-stage preparation cavity 301 is provided with a plurality of aeration pipes 303 and a stirring device 304, the dry strip aeration pipes 303 are connected with the negative pressure device 4 to enable the first-stage preparation cavity 301 to realize interval aeration, and the stirring device 304 is arranged inside the first-stage preparation cavity 301 and is used for fully mixing high-concentration carbon slurry with water.
The negative pressure device 4 comprises an air compressor 401, an air storage tank 402 and a cold dryer 403, wherein the air compressor 401 is communicated with one end of the air storage tank 402 and is used for compressing and storing air in the air storage tank 402, and the cold dryer 403 is connected with the other end of the air storage tank 402 and is used for drying water vapor in the compressed air.
The aeration pipe 303 is made of PVC pipe, the aeration pipe 303 is provided with holes at 30 degrees downwards in an inclined mode, the size of the holes is 2mm, the arrangement distance of the holes is 50mm, and the arrangement distance between a plurality of aeration pipes 303 is 300mm.
In the implementation process of this embodiment, when the high-concentration carbon slurry and water enter the first-stage preparation cavity 301, the stirring device 304 can stir and mix the high-concentration carbon slurry and water to form the required carbon slurry; the negative pressure device 4 is communicated with the aeration pipe 303 through a pipeline, and high-pressure gas is injected into the aeration pipe 303 to burst into bubbles in the pipe holes of the aeration pipe 303, so that high-concentration carbon slurry and water are vigorously stirred, uniformity of the carbon slurry in the cavity is improved, and deposition of the carbon slurry at the bottom is avoided; because the aeration pipe 303 is a PVC pipe, the PVC pipe has excellent corrosion resistance, is relatively economical and practical, and is suitable for large-scale use and low-cost projects.
When the negative pressure device 4 performs compression operation, the air compressor 401 compresses air and stores the compressed air into the air storage tank 402, but when aeration is needed, the air storage tank 402 is opened, and compressed air is dried by the cold dryer 403, so that water vapor can be effectively prevented from entering the air storage tank 402, and the concentration configuration of the carbon slurry is affected.
Example 5
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
In the implementation process of the embodiment, the negative pressure device 4 is also communicated with the bale breaker 101 through a pipeline to supply a compression power source for the pneumatic element of the bale breaker 101, so that the normal operation of the bale breaker 101 is ensured; the negative pressure device 4 is also communicated with the vacuum absorber 102 through a pipeline, and the normal operation of the vacuum absorber 102 is ensured by blowing and dedusting the inside of the vacuum absorber 102; the negative pressure device 4 is also communicated with the dust remover 103 through a pipeline, and provides air pressure and ash cleaning pulse air sources for the dust remover 103, so that the dust removal work of the dust remover 103 on the powder bin 104 is ensured; the negative pressure device 4 is also communicated with the bottom of the inner cavity of the powder bin 104 through a pipeline, and when necessary, carbon dust attached to the inner cavity of the bottom of the powder bin 104 is blown off by blowing the bottom of the inner cavity of the powder bin 104, so that the bottom of the inner cavity of the powder bin 104 is prevented from being accumulated by the carbon dust to be blocked.
Example 6
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
In the implementation process of the embodiment, the liquid storage device 3 is further provided with a secondary preparation cavity 302, a plurality of submersible sewage pumps 305 are arranged in the secondary preparation cavity 302 for adding carbon slurry, the submersible sewage pumps 305 are matched with a frequency converter, the flow can be adjusted through frequency conversion, a backflow pipeline 307 is detachably arranged at the drainage outlet of the submersible sewage pumps 305, an adjustable electric valve is arranged in the backflow pipeline 307, and an electromagnetic flowmeter is used for carrying out backflow stirring on the carbon slurry through the backflow pipeline 307 at the bottom of the secondary preparation cavity 302, so that the deposition of the carbon slurry at the bottom of the secondary preparation cavity 302 can be effectively reduced; the drain outlet of the submersible sewage pump 305 is also detachably provided with a plurality of slurry discharging pipelines 306, and an adjustable electric valve and an electromagnetic flowmeter are arranged in the slurry discharging pipelines 306; because the submersible sewage pump 305 has the advantages of low operation cost, stable operation, ground space saving, high automation, low energy consumption and the like, is convenient to maintain, and can effectively reduce the risk of personnel activities.
When the liquid storage device 3 needs to throw the carbon slurry into the water body, the electric valve and the electromagnetic flowmeter of the backflow pipeline 307 are closed, the electric valve and the electromagnetic flowmeter of the slurry discharge pipeline 306 are opened, parameters of the electromagnetic flowmeter in the slurry discharge pipeline 306 are set, and the electromagnetic flowmeter feeds back and adjusts the opening of the electric valve according to the parameters, so that the dosage is ensured to meet the requirements;
When the liquid storage device 3 does not need to throw the carbon slurry into the water body, the electric valve and the electromagnetic flowmeter of the backflow pipeline 307 are opened, the electric valve and the electromagnetic flowmeter of the slurry discharge pipeline 306 are closed, parameters of the electromagnetic flowmeter in the backflow pipeline 307 are set, and the electromagnetic flowmeter feeds back and adjusts the opening of the electric valve according to the parameters, so that the backflow rate of the carbon slurry in the secondary preparation cavity 302 can be flexibly controlled.
Example 7
As shown in fig. 1, this embodiment discloses a device for wet feeding of powder materials, which comprises a stock device 1, a mixing device 2 and a liquid storage device 3, wherein the stock device 1 transports powder activated carbon into the mixing device 2, the mixing device 2 pre-wets the powder activated carbon to prepare high-concentration carbon slurry, then the high-concentration carbon slurry is mixed with water to prepare the carbon slurry with the required concentration, and finally the carbon slurry enters the liquid storage device 3 for storage, and when the carbon slurry is required, the carbon slurry is transported from the liquid storage device 3 and fed into a water body.
On the basis of embodiment 5, in the implementation process of this embodiment, the drain outlet of the submersible sewage pump 305 is detachably provided with a pipeline leading to the wetting mechanism 202 and/or the crushing and mixing pump 203, and when the concentration of the carbon slurry in the liquid storage device 3 is insufficient, the submersible sewage pump 305 conveys the carbon slurry to the pipeline to the wetting mechanism 202 and/or the crushing and mixing pump 203 for mixing and stirring to increase the concentration of the carbon slurry.
A water treatment method for a powder material wet-method feeding device comprises the following steps:
S1: the vacuum aspirator 102 conveys the powder material from the bale breaker 101 to the powder silo 104;
S2: pre-wetting the powder material; removing a gate valve 204 at a discharging position of the powder storage bin 104 according to requirements, enabling the powder activated carbon to fall onto a spiral feeder 201, conveying the powder activated carbon into a wetting mechanism 202 by the spiral feeder 201, arranging a water inlet pipe in the wetting mechanism 202, enabling the water inlet pipe to enter the wetting mechanism 202 through water injection, forming vortex water flow in the wetting mechanism 202, opening an isolation valve 205 according to requirements, enabling the powder activated carbon to fall into the wetting mechanism 202, and mixing and prewetting the powder activated carbon and the vortex water flow;
s3: the pre-wetted carbon slurry is conveyed to a crushing and mixing pump 203, and the crushing and mixing pump cuts and breaks up the carbon slurry and water to form uniform carbon slurry with required concentration;
S4: the carbon slurry in the crushing and mixing pump 203 is conveyed into a first-stage preparation cavity 301, and the first-stage preparation cavity 301 is used for stirring and aerating the carbon slurry;
S5: the carbon slurry treated in the first-stage preparation cavity 301 is conveyed to the second-stage preparation cavity 302, and a submersible sewage pump 305 in the second-stage preparation cavity 302 quantitatively conveys the carbon slurry back into the second-stage preparation cavity 302 through a return pipeline 307; if necessary, the submersible sewage pump 305 can deliver the carbon slurry into the water through the slurry discharge pipeline 306; if necessary, the submersible pump 305 may transport the char slurry back into the wetting mechanism 202 and/or the break-up mixing pump 203 through a water addition line 308.
Through the technical scheme design, the mixed configuration process comprises the following steps: according to real-time water yield and proportioning concentration, the spiral feeder is accurately controlled to convey equivalent powdered activated carbon, a gate valve 204 at the outlet of the spiral feeder is moved away, the powdered activated carbon falls into a wetting mechanism 202, the inner cavity of the wetting mechanism 202 is in a cone shape, a water inlet is arranged in the inner cavity of the wetting mechanism 202 and sleeved with a water inlet pipe, water enters the wetting mechanism 202 from the water inlet in a tangential manner in the water inlet pipe, so that vortex water flow is formed in the wetting mechanism 202, the powdered material falls into the vortex water flow for a small amount for many times to be mixed, the powdered activated carbon is prevented from being attached to the inner wall of the wetting mechanism 202, liquid obtained after mixing enters a crushing mixing pump, the pump is provided with a crushing cutting turntable at a solid-liquid inlet, the turntable is made of 316 stainless steel and is connected with a motor spindle, the rotating speed can reach 1500RPM, all the agglomerated activated carbon is thoroughly scattered through a rapid cutting function, and then the mixed with water enters a preparation tank, and a mixing configuration process is completed.
Principle of operation
The unpacking machine 101 unpacks powder materials, a suction port of the vacuum suction device 102 conveys the powder materials into the powder bin 104 through a suction pipe, a gate valve 204 at a discharge position of the powder bin 104 is moved away, the powder materials fall onto a spiral feeder 201, the spiral feeder 201 conveys the powder materials into a wetting mechanism 202, a water inlet is arranged in the wetting mechanism 202, a water inlet pipe is sleeved with the water inlet pipe, water enters the wetting mechanism 202 from the water inlet pipe in a tangential manner, so that vortex water flow is formed in the wetting mechanism 202, the powder materials fall into the vortex water flow to be mixed and pre-wetted, the mixed powder slurry enters a crushing mixing pump 203, the crushing mixing pump 203 is provided with a crushing cutting turntable at a solid-liquid inlet, all the agglomerated powder materials are thoroughly scattered through a rapid cutting function of the crushing cutting turntable to form high-concentration powder slurry, then the high-concentration powder slurry and the water enter a first-stage preparation cavity 301, a stirring device 304 in the first-stage preparation cavity 301 is used for stirring and mixing the high-concentration powder slurry and the water into required powder slurry, an aeration pipe 303 is arranged in the cavity of the first-stage preparation cavity 301 in a tangential manner, a negative pressure device 4 and the aeration pipe 303 is communicated with the pipeline through the pipeline, and the high-pressure pipe is communicated with the high-concentration water pump 302, and the high-concentration water is blown into the high-concentration water pump 302 is required to be pumped into the cavity through the pipeline to be pumped into a high-concentration pump 305 when the high-concentration water pump 302; when the slurry is not required to be put into water, the submersible sewage pump 305 conveys the slurry to the return pipeline 307 to return to the secondary preparation cavity 302; when the concentration of slurry in the secondary preparation chamber 302 is too low, the submersible pump 305 may transport the slurry back into the wetting mechanism 202 and/or the break-up mixing pump 203 through the water feed line 308, increasing the slurry concentration.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (4)
1. The device for wet feeding of the powder materials is characterized by comprising a storage device (1), a mixing device (2) for preparing high-concentration powder slurry and a liquid storage device (3) for preparing low-concentration powder slurry; the mixing device (2) is connected with the stock device (1); the liquid storage device (3) for preparing the low-concentration slurry is communicated with the mixing device (2);
The material storage device (1) is also connected with the bale breaker (101), and the material storage device (1) comprises a vacuum aspirator (102), a dust remover (103) and a powder bin (104); the powder bin (104) is connected to the bale breaker (101) through the vacuum aspirator (102) and is used for sucking powder materials in the bale breaker (101) into the powder bin (104); the dust remover (103) is arranged at the top of the powder bin (104) and is used for removing dust discharged by the powder bin (104);
the mixing device (2) comprises a screw feeder (201), a wetting mechanism (202) and a crushing and mixing pump (203);
The spiral feeder (201) is connected to a discharge port of the material storage device (1) and is used for conveying powder materials;
the wetting mechanism (202) is arranged at the feeding end of the spiral feeder (201) and is used for rapidly mixing powder with water;
The crushing and mixing pump (203) is arranged at the bottom end of the wetting mechanism (202) and is used for mixing and scattering the agglomerated materials from the wetting mechanism (202) into uniform slurry;
The liquid storage device (3) is provided with a first-stage preparation cavity (301), and the first-stage preparation cavity (301) is provided with a plurality of aeration pipes (303) and a stirring device (304); the plurality of aeration pipes (303) are connected with the negative pressure device (4) to enable the first-stage preparation cavity (301) to realize interval aeration;
the stirring device (304) is arranged in the first-stage preparation cavity (301) and is used for fully mixing high-concentration slurry with water;
the negative pressure device (4) comprises an air compressor (401), an air storage tank (402) and a cold dryer (403);
the air compressor (401) is communicated with one end of the air storage tank (402) and is used for compressing and storing air in the air storage tank (402); the cold dryer (403) is connected to the other end of the air storage tank (402) and is used for drying water vapor in the compressed air;
The inner cavity of the wetting mechanism (202) is cone-shaped, the inner cavity of the wetting mechanism (202) is provided with a water inlet, and the water inlet is sleeved with a water inlet pipe; the water in the water inlet pipe enters the inner cavity of the wetting mechanism (202) from the water inlet in a tangential mode to form vortex water flow, and powder materials fall into the vortex water flow for a plurality of times in a small amount to be mixed into high-concentration powder slurry;
the powder material comprises powder activated carbon;
The negative pressure device (4) is also communicated with the bale breaker (101) through a pipeline, and compressed air is supplied to the bale breaker (101); the negative pressure device (4) is also communicated with the vacuum absorber (102) through a pipeline; the negative pressure device (4) is also communicated with the dust remover (103) through a pipeline, and provides air pressure and ash cleaning pulse air sources for the dust remover (103); the negative pressure device (4) is also communicated with the bottom of the inner cavity of the powder bin (104) through a pipeline;
a crushing and cutting rotary table is arranged in the crushing and mixing pump (203), and the crushing and cutting rotary table is driven by a motor to perform rotary cutting;
the mixing device (2) is also provided with an isolation valve (205) and an anti-backwater sensor (206); the isolation valve (205) is arranged at the joint of the spiral feeder (201) and the wetting mechanism (202); the backwater prevention sensor (206) is arranged in the wetting mechanism (202) and is used for controlling the opening or closing of the isolation valve (205);
The liquid storage device (3) is further provided with a secondary preparation cavity (302), the secondary preparation cavity (302) comprises a stirring device (304) and a submersible sewage pump (305), and the stirring device (304) is arranged in the secondary preparation cavity (302) and used for improving uniformity of slurry; the submersible sewage pump (305) is arranged in the secondary preparation cavity (302) and is used for discharging slurry out of the liquid storage device (3);
The drainage outlet of the submersible sewage pump (305) is detachably connected with a slurry drainage pipeline (306) for draining slurry into water; the drain outlet of the submersible sewage pump (305) is also detachably provided with a backflow pipeline (307) which is communicated with the secondary preparation cavity (302) and is used for carrying out backflow stirring on slurry so as to reduce deposition at the bottom; the drain outlet of the submersible sewage pump (305) is also detachably provided with a water adding pipeline (308) which is respectively communicated with the wetting mechanism (202) and the crushing and mixing pump (203) and is used for increasing the concentration of the prepared slurry.
2. The device for wet feeding of powder materials according to claim 1, wherein a gate valve (204) is arranged at the joint of the spiral feeder (201) and the storage device (1), and the gate valve (204) is used for precisely controlling the conveying equivalent of powder.
3. The device for wet feeding of powder materials according to claim 1, wherein the aeration pipes (303) are provided with holes at an angle of 30-35 degrees downwards, the size of the holes is 2-3 mm, the arrangement space of the holes is 50-55 mm, and the arrangement space between the aeration pipes (303) is 300-330 mm.
4. A water treatment method using the apparatus for wet feeding of powder materials as claimed in claim 2, comprising the steps of:
S1: the vacuum absorber (102) conveys powder materials from the bale breaker (101) to the powder storage bin (104);
s2: pre-wetting the powder material; removing a gate valve (204) at a discharging position of a powder bin (104) according to requirements, enabling powder materials to fall onto a spiral feeder (201), conveying the powder materials into a wetting mechanism (202) by the spiral feeder (201), arranging a water inlet pipe in the wetting mechanism (202), enabling the water inlet pipe to enter the wetting mechanism (202) through water injection, forming vortex water flow in the wetting mechanism (202), opening an isolation valve (205) according to requirements, and enabling the powder materials to fall into the vortex water flow of the wetting mechanism (202) to be mixed and pre-wetted;
S3: the pre-wetted slurry is conveyed to a crushing and mixing pump (203), and the crushing and mixing pump (203) cuts and breaks up the slurry and water to form slurry with required concentration and uniformity;
s4: conveying the needed slurry in the crushing and mixing pump (203) into a first-stage preparation cavity (301), wherein the first-stage preparation cavity (301) is used for stirring and aerating the needed slurry;
s5: the powder slurry treated in the first-stage preparation cavity (301) is conveyed to the second-stage preparation cavity (302), and a submersible sewage pump (305) in the second-stage preparation cavity (302) quantitatively conveys the powder slurry back into the second-stage preparation cavity (302) through a return pipeline (307); the submersible sewage pump (305) can transport and throw the slurry into water through a slurry discharge pipeline (306); the submersible sewage pump (305) may transport the slurry back into the wetting mechanism (202) or/and the breaking and mixing pump (203) through a water adding pipe (308).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206577720U (en) * | 2017-03-03 | 2017-10-24 | 上海诺固恩机械设备有限公司 | A kind of liquor potassic permanganate dosing system |
| CN206793451U (en) * | 2017-04-14 | 2017-12-26 | 河南瑞泰耐火材料科技有限公司 | Binder for fire-resistant materials process units |
| CN207903920U (en) * | 2017-12-08 | 2018-09-25 | 石家庄国华环保科技有限公司 | A kind of lime automatic Dosing System |
| CN219002744U (en) * | 2022-12-12 | 2023-05-12 | 潍坊诺德生物科技有限公司 | Liquid fertilizer production equipment |
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- 2023-10-12 CN CN202311316641.3A patent/CN117046361B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206577720U (en) * | 2017-03-03 | 2017-10-24 | 上海诺固恩机械设备有限公司 | A kind of liquor potassic permanganate dosing system |
| CN206793451U (en) * | 2017-04-14 | 2017-12-26 | 河南瑞泰耐火材料科技有限公司 | Binder for fire-resistant materials process units |
| CN207903920U (en) * | 2017-12-08 | 2018-09-25 | 石家庄国华环保科技有限公司 | A kind of lime automatic Dosing System |
| CN219002744U (en) * | 2022-12-12 | 2023-05-12 | 潍坊诺德生物科技有限公司 | Liquid fertilizer production equipment |
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