47results about How to "Improve anti-sedimentation effect" patented technology

The invention provides an ultrasonic wave and microwave extraction system for traditional Chinese medicines. The system is provided with a coordinated regulation device, wherein a first alarm device, a second alarm device and a third alarm device are arranged on the coordinated regulation device; the coordinated regulation device firstly controls microwave lead-in devices to lead in microwaves, after a certain time, the first alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls an ultrasonic wave lead-in device to lead in ultrasonic waves; after a certain time, the second alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls the microwave lead-in devices and the ultrasonic wave lead-in device to change the operating powers to be respectively lower than the initial powers of the microwave lead-in devices and the ultrasonic wave lead-in device; the third alarm device sends an alarm signal to the coordinated regulation device after the microwave lead-in devices and the ultrasonic wave lead-in device work with the changed operating powers for a certain time, and the coordinated regulation device firstly controls the microwave lead-in devices to stop working and then controls the ultrasonic wave lead-in device to stop working. The best matching effects of ultrasonic waves and microwaves are achieved by arranging the coordinated regulation device to strictly control the lead-in time, lead-in order, lead-in powers and closing time of the ultrasonic waves and the microwaves.

The invention discloses a bridge head structure for controlling bump at bridge head. The bridge head structure comprises a bridge abutment, a beam slab, a subgrade, a pavement structure layer, a bridge head transition slab and a bridge deck layer, wherein the pavement structure layer comprises a subbase layer, a base layer and a surface layer from bottom to top; the bridge head transition slab is arranged between the subgrade and the subbase layer, and one end of the bridge head transition slab is lapped on the bracket of the bridge abutment; a contraction joint is formed between the base layer and the back of the bridge abutment, and an expansion joint is formed between the back of the bridge abutment and the beam slab. The bridge head transition slab of the bridge head structure is arranged underneath so that the subgrade cavity phenomenon under the transition slab of the end near the abutment can be eliminated; as a result, differential settlement between the subgrade and the bridge can be effectively adjusted, bump at the joint of the bridge abutment and the embankment and secondary bump at the far end of the transition slab can be avoided, the reflection crack of the pavement can be prevented and controlled, the integrity of the pavement is good and the construction operation is simple and convenient; the service life of each of the pavement, the bridge head transition slab, the expansion joint and the bridge is prolonged, and therefore, an effective technical scheme for comprehensively controlling bump at bridge head is provided.

The invention provides a preparation method of an iron oxide particle, which comprises the steps of: firstly, mixing an iron salt, an alkali compound and a dispersing agent, and reacting to obtain nano iron oxide hydroxide; carrying out silicon dioxide coating on the nano iron oxide hydroxide, then thermally treating to ensure that the iron oxide hydroxide is subjected to de-hydroxylation to obtain silicon dioxide coated iron oxide; and finally, ultrasonically treating the silicon dioxide coated iron oxide in the alkali compound to obtain the nano hollow iron oxide particle. Because the iron oxide particle is of a hollow structure, the average density of the iron oxide particle is smaller due to the hollow structure inside the iron oxide particle, and therefore, the anti-precipitation performance of the iron oxide particle in base oil is improved; and then, the iron oxide particle is a nano particle, and the anti-participation performance of electrorheological fluid prepared by adopting the iron oxide particle is more excellent than that of the electrorheological fluid prepared by adopting a common dispersion phase particle.

The invention provides an ultrasonic wave and microwave extraction system and process. The ultrasonic wave and microwave extraction system has a cooperative regulating apparatus. The cooperative regulating apparatus controls a microwave introducing device to introduce microwaves at first, then a first alarm device sends an alarm signal to the cooperative regulating apparatus after a certain period of time, and the cooperative regulating apparatus controls an ultrasonic wave introducing device to introduce ultrasonic waves; after a certain period of time, a second alarm device sends an alarm signal to the cooperative regulating apparatus, and the cooperative regulating apparatus controls the microwave introducing device and the ultrasonic wave introducing device and successively changes the running power of the microwave introducing device and the ultrasonic wave introducing device; and a third alarm device sends an alarm signal to the cooperative regulating apparatus after the microwave introducing device and the ultrasonic wave introducing device have run at the changed power for a certain period of time, and the cooperative regulating apparatus controls the microwave introducing device to stop working at first and then controls the ultrasonic wave introducing device to stop working. According to the invention, the system strictly controls introduction time, introduction sequence, introduction power and turn-off time of the ultrasonic waves and the microwaves, so an optimal matching effect of the ultrasonic waves and the microwaves is realized.

The invention discloses anti-precipitation modified silicon dioxide, a preparation method thereof and an application of the modified silicon dioxide, and belongs to the field of coating additives. Silicon dioxide is modified by performance additives to prepare the modified silicon dioxide, the average particle size of the modified silicon dioxide is 1-10 micrometers, and the performance additivescomprise anti-precipitation performance additives prepared from one or more of acrylic polymer, polyacrylate copolymer, polybasic carboxylic polymer, polyether modified organic siloxane, aralkyl modified organic siloxane, organic silicon modified polyacrylic ester, high polymer polyacrylic ester containing efficient anchor groups, segmented copolymer containing pigment affine groups and modified urea. The modified silicon dioxide can meet the requirements of waterborne coatings and oily coatings for application of the storage performance of the silicon dioxide, precipitation in the long-term storage process is avoided, and final application effects cannot be affected.

The invention discloses a closestool cover coating capable of purifying the air. The closestool cover coating comprises raw materials in parts by weight: 35-45 parts of aqueous acrylic resin, 20-30 parts of aqueous polyurethane resin, 20-30 parts of aqueous alkyd resin, 10-15 parts of modified medical stone powder, 5-9 parts of diatomite, 6-9 parts of calcinated kaolin, 2-4 parts of tourmaline powder, 1-3 parts of hexacyclic stone powder, 3-4 parts of gas-phase silicon oxide, 1-2 parts of tween-60, 2-3 parts of zinc stearate, 2-4 parts of polyethyleneglycol , 1-3 parts of methyl hydroxypropyl cellulose, 1-3 parts of a leveling agent, 0.5-2 parts of a de-foaming agent, 2-4 parts of a preservative and 2-4 parts of a drier. The closestool cover coating capable of purifying the air, disclosed by the invention, has excellent ability to absorb stink substances in a washing room, can release negative ions to realize the effect of air purification, and has excellent weather resistance stability and flexibility.

The invention provides an ultrasonic wave and microwave extraction system equipped with a reflux unit and used for traditional Chinese medicinal materials. The ultrasonic wave and microwave extraction system comprises a second reflux unit. The second reflux unit has a taper drainage cover which is inserted into a sample solution device; the large end surface of the taper drainage cover covers a whole liquid level and is located at a position which is above the liquid level and closest to the upper end of the sample solution device, so all the gas produced during microwave heating can enter the taper drainage cover and form liquid through condensation under the action of the inner wall of the taper drainage cover, and the formed liquid flows back to a sample solution along the taper drainage cover, thereby reducing air pressure above the sample solution device and improving an ultrasonic vibration effect.

The invention discloses a gob-side entry retaining flexible infilled wall body structure which comprises an infilled wall body, as well as bagged gangue and threaded anchor rods. The laying height of the bagged gangue is the height of a roadway, the threaded anchor rods are in contact with the bagged gangue close to one side of a transportation roadway and is vertically buried in a roadway baseplate, and the exposed part is in the length of 800-1200 mm; the adjacent two threaded anchor rods are 450 mm away from each other; on the transportation roadway side 500-750 mm away from the bagged gangue, an infilled wall body template is erected. As a paste material is wholly filled outside the gangue bags, the flexible infilling body is reinforced into an inclosed solid and deformed with the internal bagged gangue collaboratively, and accordingly, communication between a goaf and harmful gases in the roadway is prevented.

The invention discloses a deodorization closestool cover coating with high adhesive force, which comprises the following raw materials in parts by weight: 25-30 parts of aqueous epoxy resin, 40-50 parts of aqueous acrylic acid resin, 15-20 parts of aqueous amino resin, 10-15 parts of modified medical stone powder, 8-12 parts of nano zeolite powder, 15-20 parts of nano talcum powder, 8-12 parts of heavy calcium carbonate,1-2 parts of organic bentonite, 0.5-1.5 parts of polyether-polyester modified organic siloxane, 0.2-0.8 part of a fluorine-modified acrylic leveling agent, 0.2-0.5 part of stearin, 2-4 parts of polyethyleneglycol, 1-3 parts of hydroxymethyl cellulose, 0.5-2 parts of a de-foaming agent, 2-4 parts of a preservative, 1-1.5 parts of rosin zirconium salt and 0.5-1.2 parts of linoleic acid zirconium salt. The deodorization closestool cover coating with high adhesive force has the excellent ability to absorb stink substances, avoids secondary pollution to the air, lowers the spread probability of disease, and is good in the adhesive force.

The invention discloses an agricultural planting irrigation device which comprises a bottom frame, an irrigation pump, a material guide bottom pipe, a reinforcing assembly, a splicing assembly, an irrigation assembly, a water storage tank, an anti-precipitation assembly, an electric control plate, a traction frame and displacement rolling wheels. The water storage tank is fixedly installed on oneside of the end face of the top of the bottom frame through bolts, and the anti-precipitation assembly is arranged on one side of the end face of the water storage tank. The electric control plate isfixedly installed on the end face of the front end of the water storage tank, an irrigation pump is fixedly installed in the center of the end face of the bottom frame through bolts, the material guide bottom pipe is connected and installed on one side of the top of the irrigation pump, the reinforcing assembly is arranged on the outer side of the material guide bottom pipe, and the splicing assembly is installed at the top of the material guide bottom pipe in an inserted connection manner. The agricultural planting irrigation device is convenient to pull and convenient to move; and during use, good structural stability can be achieved, the irrigation height can be conveniently adjusted according to the use height, meanwhile, the irrigation range is wide, and a good anti-precipitation effect can be achieved.

The present invention provides a method for manufacturing the milk powder. The method comprises the following steps: (1) pretreating raw milk; (2) dissolving ingredients in water, fully stirring them evenly to obtain an ingredient solution; (3) mixing the treated raw milk and the ingredient solution uniformly to obtain a mixed solution; (4) homogenizing the mixed solution, and then conducting sterilization and concentration to obtain concentrated milk; and (5) then adding glutamine transaminase accounting for 0.02-0.08% of the mass of the concentrated milk, stirring the substances evenly, and keeping reaction, and then performing spray drying to obtain milk powder. The method provided by the invention uses glutamine transaminase to replace a thickening agent, and protein reacts to generate a grid structure, so that after brewing the milk powder, the milk liquid has suspension function, the anti-precipitation effect of the milk liquid obtained by brewing of the milk powder can be significantly improved. By adding sodium citrate, the stability of concentrated milk can be increased, the action time of glutamine transaminase is shortened, and its action effect is increased. The method provided by the invention provides a new solution for precipitation prevention of milk powder.

The invention provides an ultrasonic wave and microwave extraction system for traditional Chinese medicines. The system is provided with a coordinated regulation device, wherein a first alarm device, a second alarm device and a third alarm device are arranged on the coordinated regulation device; the coordinated regulation device firstly controls microwave lead-in devices to lead in microwaves, after a certain time, the first alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls an ultrasonic wave lead-in device to lead in ultrasonic waves; after a certain time, the second alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls the microwave lead-in devices and the ultrasonic wave lead-in device to change the operating powers to be respectively lower than the initial powers of the microwave lead-in devices and the ultrasonic wave lead-in device; the third alarm device sends an alarm signal to the coordinated regulation device after the microwave lead-in devices and the ultrasonic wave lead-in device work with the changed operating powers for a certain time, and the coordinated regulation device firstly controls the microwave lead-in devices to stop working and then controls the ultrasonic wave lead-in device to stop working. The best matching effects of ultrasonic waves and microwaves are achieved by arranging the coordinated regulation device to strictly control the lead-in time, lead-in order, lead-in powers and closing time of the ultrasonic waves and the microwaves.

The invention discloses a BRT station heavy traffic road section pavement structure and a construction method. The pavement structure is composed of a high-viscosity high-modulus skeleton dense type mixture upper surface layer, a modified asphalt macadam connecting layer, a rigid-flexible composite asphalt mixture middle surface layer, and a modified asphalt suspension dense type mixture lower surface layer. The mixture upper surface layer is composed of fine-particle-size aggregate, ultrahigh-viscosity modified asphalt, a fiber stabilizer, a high-modulus additive and the like, and the anti-loosening and anti-deformation capacity of the surface layer is improved; the connecting layer is composed of aggregate with a single particle size and modified asphalt; the middle surface layer is formed by pouring mixed base slurry into a matrix asphalt mixture, so that the overall bearing capacity of the pavement layer is improved; and the mixture lower surface layer is composed of medium-grain or coarse-grain aggregate and modified asphalt, and the stability of the pavement layer is improved. The pavement structure is high in overall strength, strong in rut deformation resistance, good in durability and excellent in surface layer wear resistance and slide resistance, and can effectively improve the pavement quality and prolong the service life of the heavy traffic road section of a BRT station.

The invention belongs to the technical field of glue processing and particularly discloses glue for producing a packaging paperboard and a production process thereof. The glue for producing the packaging paperboard is prepared from the following raw materials in parts by mass: 460-480 parts of corn flour, 3.8-4.3 parts of borax, 13.6-14.3 parts of sodium hydroxide, 19.5-21.5 parts of bonding agent, 2.8-3.2 parts of stabilizer and 1,400-1,600 parts of water. The production process comprises the following steps: (1) batching materials; (2) adding water into a container and then adding the sodiumhydroxide; (3) adding the corn flour; (4) adding sodium hydroxide solution; (5) adding the stabilizer; (6) adding the borax; (7) adding the bonding agent. The glue prepared by the technical scheme has certain permeability and stronger bonding property, and the packaging paperboard produced by the glue is high in bonding strength and good in effect.

The invention discloses special color paste for PVC (Polyvinyl Chloride) and a production method thereof. The special color paste for the PVC is prepared from the following components in parts by weight: 0.5 to 1.5 parts of calcium carbonate, 1.5 to 2.5 parts of a stabilizer, 0.2 to 0.6 part of a coloring agent, 0.8 to 1.5 parts of a dispersant, 0.5 to 1.5 parts of epoxy soybean oil and 1.5 to 2.5parts of diisononyl phthalate. The production method comprises the following steps: putting the calcium carbonate, the stabilizer, the coloring agent and the dispersant into a material mixing barrel;sealing the material mixing barrel and stirring for 1min to 2min; adding the epoxy soybean oil and the diisononyl phthalate and continually stirring until the materials are uniformly stirred at a stirring speed which is slow first and then is rapid, so as to obtain a mixed material; putting the mixed material into a three-roller grinder and grinding, wherein the rotary speed of the three-roller grinder is a rotary speed at which the material is attached on rollers and is not thrown off; packaging and storing the ground color paste. The special color paste disclosed by the invention has the advantages of stable color, uniformity in coloring, convenience for changing colors, no influences on mechanical properties of the material and environment protection.

The invention discloses a suspending agent specially used in the preparation and use process of electric porcelain surface glaze in the electric porcelain insulator production process. The suspending agent comprises 0.5-1.5wt% of industrial grade polyacrylamide, 1-2wt% of sodium acrylate, 1-3wt% of sodium hexametaphosphate and 93.5-97.5wt% of purified water. A preparation method of the suspending agent mainly comprises the following steps: dispersing and mixing sodium hexametaphosphate, polyacrylamide and purified water in an electrothermal reactor, adding sodium acrylate, continuously mixing, discharging, and packaging. The suspending agent can substantially reduce the layering precipitation speed of a glaze slip, improves the stability of the glaze slip by about 5 times, only accounts for about 1 / 10 of a present common amount, has protruding performances and substantial benefits, and also has the characteristics of simple synthesis process and convenience in storage and use.

The invention discloses an anti-precipitation modified silicon dioxide, a preparation method and application thereof, and belongs to the field of paint additives. The modified silica is prepared by modifying the silica base material with a modification aid, and the average particle diameter of the modified silica is 1-10 μm; wherein, the modification aid includes Anti-precipitation modification auxiliary agent, the anti-precipitation modification auxiliary agent is selected from acrylic polymers, polyacrylate copolymers, polycarboxylic acid polymers, polyether modified organosiloxanes, aralkyl modified One or more of organosiloxanes, silicone-modified polyacrylates, high-molecular polyacrylates containing high-efficiency anchor groups, block copolymers containing pigment affinity groups, and modified ureas. The modified silicon dioxide of the present invention can satisfy the application of the storage properties of silicon dioxide in water-based paints and oil-based paints, and avoid precipitation during long-term storage from affecting the final application effect.

The invention discloses an anti-precipitation device for producing water-based paint on an outer wall surface. The anti-precipitation device comprises a machine body and supporting legs, moving seats are slidably mounted on the surfaces of the two sides of the top of the machine body, and supporting rods are rotatably mounted in the middles of the surfaces of the tops of the moving seats through rotating shafts. According to the device, a gear ring, a stirring paddle, a connecting pipe and fan blades are arranged, two groups of stirring tanks can be connected through the connecting pipe during use, so that internal paint can flow conveniently, the stirring tanks are driven to rotate through rotation of the gear ring, and the rotating directions of the two groups of stirring tanks are completely opposite, so that the paint can flow irregularly. The rotation of the stirring tanks throws up the paint deposited at the bottom due to gravity again, the stirring paddles rotate while rotating to stir the paint inside, the stirring paddles rotate while driving a placing rod to rotate so as to drive the fan blades to rotate, and the bottom paint is stirred through the rotation of the fan blades to prevent precipitation, and the device has the advantage of good anti-precipitation effect.

The invention provides a preparation method of an iron oxide particle, which comprises the steps of: firstly, mixing an iron salt, an alkali compound and a dispersing agent, and reacting to obtain nano iron oxide hydroxide; carrying out silicon dioxide coating on the nano iron oxide hydroxide, then thermally treating to ensure that the iron oxide hydroxide is subjected to de-hydroxylation to obtain silicon dioxide coated iron oxide; and finally, ultrasonically treating the silicon dioxide coated iron oxide in the alkali compound to obtain the nano hollow iron oxide particle. Because the iron oxide particle is of a hollow structure, the average density of the iron oxide particle is smaller due to the hollow structure inside the iron oxide particle, and therefore, the anti-precipitation performance of the iron oxide particle in base oil is improved; and then, the iron oxide particle is a nano particle, and the anti-participation performance of electrorheological fluid prepared by adopting the iron oxide particle is more excellent than that of the electrorheological fluid prepared by adopting a common dispersion phase particle.

The invention provides an improved ultrasonic wave and microwave extraction system. A sample solution apparatus is a cuboid cavity; a microwave introducing apparatus has an even number of microwave inlets arranged on the cavity, and the even number of microwave inlets are located at two ends of a diagonal of the space of the cavity and pairedly distributed according to farthest distance. According to the invention, since an even number of the microwave inlets are pairedly designed and the microwave inlets are pairedly distributed along two ends of the diagonal of the space formed by a sample solution in the cavity, microwaves introduced from two microwave inlets respectively intersect with ultrasonic waves when the ultrasonic waves are introduced and intersection points are located at two opposite ends of a same plane; after intersection of the microwaves and the ultrasonic waves, shear vibration effects of the ultrasonic waves are respectively enhanced at two ends of the same plane, and enhanced diffusion effects mutually transfer along the plane, which improves the vibration and wall breaking effects of the ultrasonic waves in the whole space.

The invention provides an ultrasonic wave and microwave extraction system for traditional Chinese medicines. The system is provided with a coordinated regulation device, wherein a first alarm device, a second alarm device and a third alarm device are arranged on the coordinated regulation device; the coordinated regulation device firstly controls microwave lead-in devices to lead in microwaves, after a certain time, the first alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls an ultrasonic wave lead-in device to lead in ultrasonic waves; after a certain time, the second alarm device sends an alarm signal to the coordinated regulation device, and the coordinated regulation device controls the microwave lead-in devices and the ultrasonic wave lead-in device to change the operating powers to be respectively lower than the initial powers of the microwave lead-in devices and the ultrasonic wave lead-in device; the third alarm device sends an alarm signal to the coordinated regulation device after the microwave lead-in devices and the ultrasonic wave lead-in device work with the changed operating powers for a certain time, and the coordinated regulation device firstly controls the microwave lead-in devices to stop working and then controls the ultrasonic wave lead-in device to stop working. The best matching effects of ultrasonic waves and microwaves are achieved by arranging the coordinated regulation device to strictly control the lead-in time, lead-in order, lead-in powers and closing time of the ultrasonic waves and the microwaves.

The invention provides an ultrasonic wave and microwave extraction system equipped with a reflux unit and used for traditional Chinese medicinal materials. The ultrasonic wave and microwave extraction system comprises a second reflux unit. The second reflux unit has a taper drainage cover which is inserted into a sample solution device; the large end surface of the taper drainage cover covers a whole liquid level and is located at a position which is above the liquid level and closest to the upper end of the sample solution device, so all the gas produced during microwave heating can enter the taper drainage cover and form liquid through condensation under the action of the inner wall of the taper drainage cover, and the formed liquid flows back to a sample solution along the taper drainage cover, thereby reducing air pressure above the sample solution device and improving an ultrasonic vibration effect.

The invention provides an ultrasonic microwave extraction system for Chinese medicinal materials. The ultrasonic microwave extraction system is provided with a coordinated regulation and control device, and the coordinated regulation and control device is provided with a first alarm device, a second alarm device and a third alarm device. The coordinated regulation and control device controls a microwave introduction device to introduce microwaves, the first alarm device sends an alarm signal to the coordinated regulation and control device after a certain time, and the coordinated regulation and control device controls an ultrasonic introduction device to introduce ultrasonic waves; after a certain time, the second alarm device sends an alarm signal to the coordinated regulation and control device, and the coordinated regulation and control device controls the microwave introduction device and the ultrasonic induction device to change the operating power, so that the operating power ofthe microwave introduction device and the ultrasonic induction device is lower than initial power of the microwave introduction device and the ultrasonic induction device, respectively; and the thirdalarm device sends an alarm signal to the coordinated regulation and control device after the microwave introduction device and the ultrasonic introduction device operate for a certain period of timeunder the condition of the changed operating power, and the coordinated regulation and control device firstly controls the microwave introduction device to stop working, and then controls the ultrasonic introduction device to stop working.

The invention discloses a gob-side entry retaining flexible infilled wall body structure which comprises an infilled wall body, as well as bagged gangue and threaded anchor rods. The laying height of the bagged gangue is the height of a roadway, the threaded anchor rods are in contact with the bagged gangue close to one side of a transportation roadway and is vertically buried in a roadway baseplate, and the exposed part is in the length of 800-1200 mm; the adjacent two threaded anchor rods are 450 mm away from each other; on the transportation roadway side 500-750 mm away from the bagged gangue, an infilled wall body template is erected. As a paste material is wholly filled outside the gangue bags, the flexible infilling body is reinforced into an inclosed solid and deformed with the internal bagged gangue collaboratively, and accordingly, communication between a goaf and harmful gases in the roadway is prevented.

The invention relates to a vertical reaction kettle with dual heat sources, which includes a kettle body, a stirrer, a heat exchanger and a water pump. The kettle body is provided with an electric heater at the bottom of the kettle body. The stirrer includes a vertical shaft and a Stirring blades on the vertical shaft and a stirring motor driving the rotation of the vertical shaft. The heat exchanger includes a liquid storage pan located in the upper end of the kettle body. The liquid storage pan is located above the objects stored in the kettle body. The bottom of the liquid storage pan is The wall is provided with a liquid outlet, one end of the liquid storage tray is provided with a liquid inlet chamber, and the other end is provided with a liquid outlet chamber, the liquid inlet chamber is provided with a heating medium inlet, and the liquid outlet chamber is provided with a heating medium The outlet, the liquid inlet chamber and the liquid outlet chamber are connected through several heat exchange tubes located in the liquid storage pan, and the pump is used to pump the materials stored in the still body into the liquid storage pan. The invention has the advantage that the heating can be stopped immediately after the material is heated to the set temperature, and solves the problem of inaccurate temperature control of the existing reaction kettle.

The invention discloses an anti-precipitating device of a water-coal-slurry storage tank. The anti-precipitating device is characterized by comprising a tank body, a plurality of vertical type stirrers, a blower, side stirrers and a turbulator, wherein the tank body is provided with a tank cover and a plurality of slurry outlets; the vertical type stirrers are uniformly distributed in the tank body along the center of the tank body; the vertical type stirrers are fixedly arranged between the bottom wall of the tank body and the tank cover; the blower comprises a main through pipeline which is arranged outside the side wall of the bottom of the tank body, a plurality of branch pipes, a plurality of valves and an air compressor; each branch pipe is provided with an independent valve; the main through pipeline is connected with the air compressor; and the air compressor is used for blowing compressed air into the tank body through the main through pipeline and the branch pipes. The anti-precipitating device radically solves the anti-precipitating problem of the water-coal-slurry storage tank, so that water-coal-slurry can have fluidity like water so as to be convenient for long-distance transportation; and the anti-precipitating device has anti-precipitating effect better than that of other ways, can effectively solve potential safety hazards in operation of the storage tank, and can relieve logistical clearing pressure of enterprises.

The invention provides an improved ultrasonic wave and microwave extraction system. A sample solution apparatus is a cuboid cavity; a microwave introducing apparatus has an even number of microwave inlets arranged on the cavity, and the even number of microwave inlets are located at two ends of a diagonal of the space of the cavity and pairedly distributed according to farthest distance. According to the invention, since an even number of the microwave inlets are pairedly designed and the microwave inlets are pairedly distributed along two ends of the diagonal of the space formed by a sample solution in the cavity, microwaves introduced from two microwave inlets respectively intersect with ultrasonic waves when the ultrasonic waves are introduced and intersection points are located at two opposite ends of a same plane; after intersection of the microwaves and the ultrasonic waves, shear vibration effects of the ultrasonic waves are respectively enhanced at two ends of the same plane, and enhanced diffusion effects mutually transfer along the plane, which improves the vibration and wall breaking effects of the ultrasonic waves in the whole space.