CN111468012B - Preparation device and method for bentonite with specific water content - Google Patents
Preparation device and method for bentonite with specific water content Download PDFInfo
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- CN111468012B CN111468012B CN202010434395.1A CN202010434395A CN111468012B CN 111468012 B CN111468012 B CN 111468012B CN 202010434395 A CN202010434395 A CN 202010434395A CN 111468012 B CN111468012 B CN 111468012B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 81
- 239000000440 bentonite Substances 0.000 title claims abstract description 81
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 15
- 238000003756 stirring Methods 0.000 claims abstract description 173
- 238000003860 storage Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 3
- 239000008367 deionised water Substances 0.000 claims description 27
- 229910021641 deionized water Inorganic materials 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 239000008239 natural water Substances 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/51—Methods thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/54—Mixing liquids with solids wetting solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
- B01F29/83—Mixers with rotating receptacles rotating about a substantially vertical axis with rotary paddles or arms, e.g. movable out of the receptacle
-
- 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
- B01F33/86—Mixing heads comprising a driven stirrer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/325—Driving reciprocating or oscillating stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a preparation device of bentonite with specific water content, which comprises a water storage tank, a bracket, a top cover, a stirring bin, an atomizing nozzle, a stirring paddle, a flow director and a driver, wherein the top cover is arranged at the top of the stirring bin, the top cover and the driver are connected with the bracket, the driver is in transmission connection with the stirring bin, the stirring bin is rotatably and detachably connected with the top cover, the stirring paddle is rotatably connected with the top cover, one end of the flow director is slidably connected with the top cover, the flow director can reciprocate along the radial direction of the stirring bin, and the other end of the flow director extends into the stirring bin. The invention also provides a preparation method of the bentonite with specific water content, which can adjust the interval between the deflector and the inner wall of the stirring bin in real time according to the water content change of the bentonite, effectively reduce the agglomeration phenomenon caused by extrusion and improve the preparation uniformity of the bentonite with specific water content; the preparation device of bentonite with specific water content is convenient to operate and improves the preparation working efficiency.
Description
Technical Field
The invention relates to the field of preparation of buffer backfill material building blocks, in particular to a preparation device and method of bentonite with specific water content.
Background
Buffer backfill materials are an important component of multiple barrier systems in high level waste geological reservoirs, and a number of studies have shown that bentonite is a suitable substrate for buffer backfill materials. The bentonite is generally packed around the waste tank in the form of bentonite blocks internationally, and serves as the last artificial barrier between the waste tank and the geologic body, plays important roles in engineering barriers, hydraulic barriers, chemical barriers, conduction, dissipation of radioactive waste decay heat and the like, and is an effective guarantee for the safety and stability of a geologic disposal warehouse.
In the preparation process of the high-compaction bentonite block, the water content of the bentonite powder raw material has an important influence on the compression molding property and the integrity of the block, so that the mastering of the preparation method of the bentonite with the specific water content becomes a vital ring. However, the presently disclosed formulation methods fall into two main categories: the preparation is carried out according to the geotechnical test method standard GB/T50123-2019, but the method is carried out manually in experiments, the preparation efficiency is low, and the target water content difference is large. The second is to use mechanical preparation, but the method is also to stir and mix non-expansive soil sample, and the bentonite is expansive soil containing montmorillonite and has special performance of swelling when contacting water, so the method is not applicable. The bentonite powder has better fluidity at a lower water content, but as the water content increases, the viscosity increases and the fluidity becomes worse, resulting in relatively difficult stirring and mixing. Meanwhile, as the bentonite has extremely strong plasticity, the bentonite is directly mixed with the liquid water, and the liquid water and the bentonite are difficult to uniformly mix in the process of preparing materials with specific water content, so that the bentonite is agglomerated, adhered to a mixing container and the like, and the water is unevenly distributed, and therefore, the method cannot be used for preparing the bentonite with specific water content.
Therefore, how to change the current situations of large water content preparation difference and uneven water content distribution, which easily occur in the preparation of bentonite with specific water content, in the prior art becomes a problem to be solved urgently by the technicians in the field.
Disclosure of Invention
The invention aims to provide a preparation device and method for bentonite with specific water content, which are used for solving the problems in the prior art and improving the uniformity and the preparation efficiency of bentonite preparation.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a preparation device of bentonite with specific water content, which comprises a water storage tank, a support, a top cover, a stirring bin, an atomizing nozzle, a stirring paddle, a flow director and a driver, wherein the top cover is arranged at the top of the stirring bin, the top cover and the driver are connected with the support, the driver is in transmission connection with the stirring bin, the driver can drive the stirring bin to rotate, the stirring bin is rotatably connected with the top cover in a detachable manner, the stirring paddle, the atomizing nozzle and the flow director are all arranged in the stirring bin, the stirring paddle is rotatably connected with the top cover, the stirring paddle can stir raw materials, one end of the flow director is slidably connected with the top cover, the flow director can reciprocate along the radial direction of the stirring bin, the other end of the flow director stretches into the stirring bin, the water storage tank can store deionized water, the water storage tank is communicated with the atomizing nozzle, and the atomizing nozzle can spray deionized water into the stirring bin.
Preferably, the water storage tank is connected with a water pump, and the water pump is communicated with the atomizing nozzle through a pipeline.
Preferably, a nozzle switch is arranged at one end of the pipeline close to the atomizing nozzle.
Preferably, the atomizing nozzle is located on the top cover and faces the stirring bin, the atomizing nozzle and the stirring bin are coaxially arranged, and the stirring paddles and the flow guider are located on two sides of the atomizing nozzle.
Preferably, the stirring paddle comprises a stirring shaft and two groups of stirring blades, the stirring shaft is rotatably connected with the top cover, the axis of the stirring shaft is parallel to the axis of the stirring bin, the two groups of stirring blades are distributed along the axis direction of the stirring shaft, and a gap is reserved between the two groups of stirring blades.
Preferably, a bearing is arranged at the joint of the stirring paddle and the top cover.
Preferably, the support comprises a bottom support and a top support which are connected, the driver is fixed on the bottom support, one end of the top cover is connected with the top support, and the driver is a motor.
Preferably, a discharge opening is arranged at the bottom of the stirring bin, and a discharge valve is arranged at the discharge opening.
Preferably, a lining structure layer is arranged on the inner wall of the stirring bin, the lining structure layer is made of polytetrafluoroethylene materials, and the stirring paddles and the flow guide device are made of stainless steel materials.
The invention also provides a preparation method of bentonite with specific water content, which comprises the following steps:
firstly, selecting a certain amount of bentonite powder, and testing the natural water content of the bentonite powder according to a geotechnical test method standard;
weighing bentonite powder with a certain mass, and calculating the water adding amount according to the mass of the bentonite, the measured natural water content and the preset target water content;
putting the weighed bentonite powder into a stirring bin, uniformly spreading the bentonite powder, and adding the weighed deionized water into a water storage tank;
starting a driver, starting an atomizing nozzle to spray deionized water after the stirring bin stably runs for 1-2min, wherein the distance between the atomizing nozzle and bentonite is 2-4cm, and spraying for 2-3s each time, and spraying again at intervals of 3-5 s;
step five, before spraying deionized water, adjusting the flow director to enable the distance between the flow director and the inner wall of the stirring bin to be 0.5-1cm; when the deionized water amount in the water storage tank is half of the initial deionized water amount, adjusting the flow director to ensure that the distance between the flow director and the inner wall of the stirring bin is 1-1.5cm; when the deionized water in the water storage tank is completely sprayed, the atomizing nozzle is closed, the flow guider is adjusted, the distance between the flow guider and the inner wall of the stirring bin is 1.5-2cm, and stirring is continued for 3-5min;
and step six, after the stirring is finished, discharging after the stirring bin stops stirring, loading the prepared bentonite into a container for sealing and storing, and making a recording label.
Compared with the prior art, the invention has the following technical effects: the invention relates to a preparation device of bentonite with specific water content, which comprises a water storage tank, a bracket, a top cover, a stirring bin, an atomizing nozzle, a stirring paddle, a flow director and a driver, wherein the top cover is arranged at the top of the stirring bin, the top cover and the driver are connected with the bracket, the driver is in transmission connection with the stirring bin, the driver can drive the stirring bin to rotate, the stirring bin is rotatably and detachably connected with the top cover, the stirring paddle, the atomizing nozzle and the flow director are all arranged in the stirring bin, the stirring paddle is rotatably connected with the top cover, the stirring paddle can stir raw materials, one end of the flow director is slidably connected with the top cover, the flow director can reciprocate along the radial direction of the stirring bin, the other end of the flow director stretches into the stirring bin, the water storage tank can store deionized water, the water storage tank is communicated with the atomizing nozzle, and the atomizing nozzle can spray deionized water into the stirring bin. The invention also provides a preparation method of the bentonite with specific water content, which utilizes the preparation device of the bentonite with specific water content, and as the bentonite is adhered with a layer of hard aggregate on the inner wall of the stirring bin under the rotary extrusion of the stirring paddle or the flow director in the stirring process of the bentonite, the stirring work is difficult to carry out; meanwhile, the preparation device of bentonite with specific water content is convenient to operate, reduces the labor burden of operators and improves the preparation work efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a device for preparing bentonite with a specific water content;
wherein, 1 is the water storage tank, 2 is the water pump, 3 is the pipeline, 4 is the shower nozzle switch, 5 is the atomizer, 6 is the stirring rake, 601 is the (mixing) shaft, 602 is stirring vane, 7 is the water conservancy diversion ware, 8 is the stirring storehouse, 9 is the support, 901 is the top support, 902 is the bottom support, 10 is the driver, 11 is the bearing, 12 is the top cap.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a preparation device and method for bentonite with specific water content, which are used for solving the problems in the prior art and improving the uniformity and the preparation efficiency of bentonite preparation.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a device for preparing bentonite with a specific water content according to the present invention.
The invention provides a preparation device of bentonite with specific water content, which comprises a water storage tank 1, a bracket 9, a top cover 12, a stirring bin 8, an atomizing nozzle 5, a stirring paddle 6, a flow director 7 and a driver 10, wherein the top cover 12 is arranged at the top of the stirring bin 8, the top cover 12 and the driver 10 are connected with the bracket 9, the driver 10 is in transmission connection with the stirring bin 8, the driver 10 can drive the stirring bin 8 to rotate, the stirring bin 8 is rotatably connected with the top cover 12 in a detachable manner, the stirring paddle 6, the atomizing nozzle 5 and the flow director 7 are all arranged in the stirring bin 8, the stirring paddle 6 is rotatably connected with the top cover 12, the stirring paddle 6 can stir raw materials, one end of the flow director 7 is slidably connected with the top cover 12, the flow director 7 can reciprocate along the radial direction of the stirring bin 8, the other end of the flow director 7 stretches into the stirring bin 8, the water storage tank 1 can store deionized water, the water storage tank 1 is communicated with the atomizing nozzle 5, and the atomizing nozzle 5 can spray deionized water into the stirring bin 8.
When the preparation device of bentonite with specific water content works, the driver 10 drives the stirring bin 8 to rotate, and when the stirring bin 8 rotates, the bentonite raw material is driven to rotate, and the rotating bentonite raw material drives the stirring paddle 6 to rotate, so that the stirring and mixing effects are achieved. In the stirring process of the bentonite, under the rotary extrusion of the stirring paddle 6 or the flow director 7, a layer of hard aggregate is adhered to the inner wall of the stirring bin 8 to cause difficulty in stirring. Specifically, at the initial stage of stirring, because bentonite moisture content is lower, can reduce the interval between the inner wall of water conservancy diversion ware 7 and stirring storehouse 8, make more raw materials participate in rotatory mixing, along with the moisture content increases gradually in the raw materials, raw materials viscidity increases, during the rotation, with the agglomeration attached to the inner wall of stirring storehouse 8 and form hard aggregate under the effect of water conservancy diversion ware 7, consequently, need in time increase the interval between the inner wall of water conservancy diversion ware 7 and stirring storehouse 8 according to the increase of moisture content, reduce the extrusion force, reduce the aggregate, make the raw materials reach the effect of stirring evenly. Meanwhile, the preparation device of bentonite with specific water content is convenient to operate, reduces the labor burden of operators and improves the preparation work efficiency.
Wherein, the water storage tank 1 is connected with the water pump 2, and the water pump 2 is linked together with atomizer 5 through pipeline 3, ensures that deionized water in the water storage tank 1 can get into stirring storehouse 8 smoothly.
In order to facilitate control of starting and stopping of the atomizing nozzle 5, one end of the pipeline 3, which is close to the atomizing nozzle 5, is provided with a nozzle switch 4, so that the operation is convenient, and the labor burden of operators is reduced.
Specifically, atomizer 5 is located top cap 12 and sets up towards stirring storehouse 8, and atomizer 5 and the coaxial setting in stirring storehouse 8, and stirring storehouse 8 are cylindric structure, guarantee that the biggest atomizing of atomizer 5 sprays the diameter and be less than the internal diameter in stirring storehouse 8, and stirring rake 6 and fluid director 7 are located the both sides of atomizer 5.
In addition, stirring rake 6 includes (mixing) shaft 601 and two sets of stirring vane 602, and (mixing) shaft 601 rotationally links to each other with top cap 12, and the axis of (mixing) shaft 601 is parallel with the axis of stirring storehouse 8, and two sets of stirring vane 602 are arranged along the axis direction of (mixing) shaft 601, have the clearance between two sets of stirring vane 602, set up two sets of stirring vane 602, have improved stirring work efficiency.
In order to smoothly rotate the stirring paddle 6, a bearing 11 is provided at the joint of the stirring paddle 6 and the top cover 12.
More specifically, the bracket 9 includes a bottom bracket 902 and a top bracket 901 which are connected, the driver 10 is fixed on the bottom bracket 902, one end of the top cover 12 is connected with the top bracket 901, a gap is formed between the stirring bin 8 and the bottom bracket 902, the driver 10 is a motor, the motor can drive the stirring bin 8 to rotate at a rotation speed of 10-50r/min, and when the driver 10 drives the stirring bin 8 to rotate, the top cover 12 is kept relatively stationary.
In addition, for convenient unloading, the bottom of stirring storehouse 8 sets up the discharge opening, and the discharge opening is linked together with the inner chamber of stirring storehouse 8, and discharge opening department sets up the discharge valve, the control of being convenient for.
Further, the lining structure layer is arranged on the inner wall of the stirring bin 8 and made of polytetrafluoroethylene, so that the adhesion phenomenon of bentonite can be reduced, meanwhile, the corrosion of the bentonite to the stirring bin 8 is reduced, and the stirring paddle 6 and the fluid director 7 are made of stainless steel, so that the corrosion is reduced, and the service life is prolonged.
The invention also provides a preparation method of bentonite with specific water content, which comprises the following steps:
firstly, selecting a certain amount of bentonite powder, and testing the natural water content of the bentonite powder according to a geotechnical test method standard;
weighing bentonite powder with a certain mass, and calculating the water adding amount according to the mass of the bentonite, the measured natural water content and the preset target water content;
putting the weighed bentonite powder into a stirring bin 8, uniformly spreading the bentonite powder, and adding the weighed deionized water into a water storage tank 1;
starting a driver 10, starting an atomizing nozzle 5 to spray deionized water after the stirring bin 8 stably runs for 1-2min, wherein the distance between the atomizing nozzle 5 and bentonite is 2-4cm, spraying time of the atomizing nozzle 5 lasts for 2-3s each time, and spraying again at intervals of 3-5 s;
step five, before spraying deionized water, adjusting the flow director 7 to enable the distance between the flow director 7 and the inner wall of the stirring bin 8 to be 0.5-1cm; when the deionized water amount in the water storage tank 1 is half of the initial deionized water amount, the flow director 7 is adjusted, so that the distance between the flow director 7 and the inner wall of the stirring bin 8 is 1-1.5cm; when the deionized water in the water storage tank 1 is completely sprayed, the atomizing nozzle 5 is closed, the flow guider 7 is adjusted, the distance between the flow guider 7 and the inner wall of the stirring bin 8 is 1.5-2cm, and stirring is continued for 3-5min;
and step six, after stirring, discharging after the stirring bin 8 stops stirring, loading the prepared bentonite into a container for sealing and storing, and making a record label.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. A preparation facilities of specific moisture content bentonite, its characterized in that: the device comprises a water storage tank, a support, a top cover, a stirring bin, an atomizing nozzle, a stirring paddle, a flow director and a driver, wherein the top cover is arranged at the top of the stirring bin, the top cover and the driver are all connected with the support, the driver is in transmission connection with the stirring bin, the driver can drive the stirring bin to rotate, the stirring bin is rotatably connected with the top cover in a detachable manner, the stirring paddle, the atomizing nozzle and the flow director are all arranged in the stirring bin, the stirring paddle is rotatably connected with the top cover, the stirring paddle can stir raw materials, one end of the flow director is slidably connected with the top cover, the flow director can reciprocate along the radial direction of the stirring bin, the other end of the flow director stretches into the stirring bin, the water storage tank can store deionized water, the water storage tank is communicated with the atomizing nozzle, the water pump is connected with the atomizing nozzle through a pipeline, and the water storage tank can spray deionized water into the stirring bin. The inner wall of the stirring bin is provided with a lining structure layer, the lining structure layer is made of polytetrafluoroethylene materials, and the stirring paddles and the flow guider are made of stainless steel materials;
according to the change of the water content of the bentonite, the space between the deflector and the inner wall of the stirring bin is adjusted in real time; in the initial stage of stirring, the bentonite has lower water content, and the space between the fluid director and the inner wall of the stirring bin is reduced; along with the gradual increase of the water content in the raw materials, the viscosity of the raw materials is increased, and the distance between the flow guider and the inner wall of the stirring bin is increased according to the increase of the water content.
2. The device for preparing bentonite with specific water content according to claim 1, wherein: and a nozzle switch is arranged at one end of the pipeline, which is close to the atomizing nozzle.
3. The device for preparing bentonite with specific water content according to claim 2, wherein: the atomizing nozzle is located on the top cover and faces the stirring bin, the atomizing nozzle and the stirring bin are coaxially arranged, and the stirring paddles and the flow guider are located on two sides of the atomizing nozzle.
4. The device for preparing bentonite with specific water content according to claim 1, wherein: the stirring paddle comprises a stirring shaft and two groups of stirring blades, the stirring shaft is rotatably connected with the top cover, the axis of the stirring shaft is parallel to the axis of the stirring bin, the two groups of stirring blades are distributed along the axis direction of the stirring shaft, and a gap is reserved between the two groups of stirring blades.
5. The device for preparing bentonite with specific water content according to claim 4, wherein: and a bearing is arranged at the joint of the stirring paddle and the top cover.
6. The device for preparing bentonite with specific water content according to claim 1, wherein: the support includes bottom support and the top support that links to each other, the driver is fixed in on the bottom support, the one end of top cap with the top support links to each other, the driver is the motor.
7. The device for preparing bentonite with specific water content according to claim 1, wherein: the bottom of stirring storehouse sets up the discharge opening, discharge opening department sets up the discharge valve.
8. A method for preparing bentonite with specific water content, which is characterized by using the device for preparing bentonite with specific water content according to any one of claims 1-7, and comprising the following steps:
firstly, selecting a certain amount of bentonite powder, and testing the natural water content of the bentonite powder according to a geotechnical test method standard;
weighing bentonite powder with a certain mass, and calculating the water adding amount according to the mass of the bentonite, the measured natural water content and the preset target water content;
putting the weighed bentonite powder into a stirring bin, uniformly spreading the bentonite powder, and adding the weighed deionized water into a water storage tank;
starting a driver, starting an atomizing nozzle to spray deionized water after the stirring bin stably runs for 1-2min, wherein the distance between the atomizing nozzle and bentonite is 2-4cm, and spraying for 2-3s each time, and spraying again at intervals of 3-5 s;
step five, before spraying deionized water, adjusting the flow director to enable the distance between the flow director and the inner wall of the stirring bin to be 0.5-1cm; when the deionized water amount in the water storage tank is half of the initial deionized water amount, adjusting the flow director to ensure that the distance between the flow director and the inner wall of the stirring bin is 1-1.5cm; when the deionized water in the water storage tank is completely sprayed, the atomizing nozzle is closed, the flow guider is adjusted, the distance between the flow guider and the inner wall of the stirring bin is 1.5-2cm, and stirring is continued for 3-5min;
and step six, after the stirring is finished, discharging after the stirring bin stops stirring, filling the prepared bentonite into a container for sealing and storing, and making a recording label.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100005450U (en) * | 2008-11-19 | 2010-05-27 | 대우조선해양 주식회사 | Device for agitating a fluid stored in tank |
| CN204502860U (en) * | 2015-04-10 | 2015-07-29 | 梅县梅雁旋窑水泥有限公司 | A kind of finished cement homogenize agitating device |
| CN106813957A (en) * | 2016-02-26 | 2017-06-09 | 中国辐射防护研究院 | A kind of bentonite moisture content adjusting means and adjusting method |
| CN207630255U (en) * | 2017-11-02 | 2018-07-20 | 铜陵博锋实业有限公司 | A kind of mud bentonite production agitating device |
| CN108325403A (en) * | 2018-03-30 | 2018-07-27 | 中国建筑第五工程局有限公司 | The spraying agitating device and stirring means uniformly moistened for powder |
| CN209423465U (en) * | 2018-11-14 | 2019-09-24 | 山西大学 | A kind of specific moisture content device for formulating of full-automatic soil sample |
| CN212263069U (en) * | 2020-05-21 | 2021-01-01 | 核工业北京地质研究院 | Preparation device of bentonite with specific water content |
-
2020
- 2020-05-21 CN CN202010434395.1A patent/CN111468012B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100005450U (en) * | 2008-11-19 | 2010-05-27 | 대우조선해양 주식회사 | Device for agitating a fluid stored in tank |
| CN204502860U (en) * | 2015-04-10 | 2015-07-29 | 梅县梅雁旋窑水泥有限公司 | A kind of finished cement homogenize agitating device |
| CN106813957A (en) * | 2016-02-26 | 2017-06-09 | 中国辐射防护研究院 | A kind of bentonite moisture content adjusting means and adjusting method |
| CN207630255U (en) * | 2017-11-02 | 2018-07-20 | 铜陵博锋实业有限公司 | A kind of mud bentonite production agitating device |
| CN108325403A (en) * | 2018-03-30 | 2018-07-27 | 中国建筑第五工程局有限公司 | The spraying agitating device and stirring means uniformly moistened for powder |
| CN209423465U (en) * | 2018-11-14 | 2019-09-24 | 山西大学 | A kind of specific moisture content device for formulating of full-automatic soil sample |
| CN212263069U (en) * | 2020-05-21 | 2021-01-01 | 核工业北京地质研究院 | Preparation device of bentonite with specific water content |
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