CN212790543U - Online powder-liquid mixing pump - Google Patents

Abstract

The utility model relates to a powder liquid mixing arrangement, an online powder liquid mixing pump specifically says so, including frame, the motor of setting in the frame and the stator-rotor structure of setting in the pump chamber, rotor among the motor drive stator-rotor structure is rotatory, be equipped with into powder mouth, inlet and discharge gate on the pump chamber, the rotatory vacuum that produces of stator among the relative stator-rotor structure of rotor makes the intracavity of pump form the negative pressure in order to follow powder, solvent respectively advance powder mouth, inlet suction pump intracavity mixing dispersion, the thick liquids after the mixing dispersion are followed the discharge gate is discharged. The utility model discloses a novel equipment to online powder liquid mixing dispersion development, from the motor to rotor stator, can all be according to the material characteristic of difference, have pertinence to select collocation to reach best effect. Simultaneously, the anti-blocking device on the equipment can dredge in time after the pump is blocked, so that the production efficiency is improved.

Description

Online powder-liquid mixing pump

Technical Field

The utility model relates to a powder liquid mixing apparatus, online powder liquid mixing pump specifically says so.

Background

In the chemical material manufacturing industry, the main equipment used in the powder-liquid mixing process is a mechanical stirrer, powder and a solvent are put into a stirring tank in advance according to a proportion, and then a stirring device is adopted to fully mix the powder and the liquid. With the development of equipment manufacturing technology, a mixing pump capable of mixing and dispersing powder and liquid gradually appears, and the powder and liquid mixing pump is equipment capable of mixing powder and liquid on line. The existing powder-liquid mixing equipment has the following defects:

1. the work efficiency is low: the traditional mechanical stirring equipment mainly adopts an intermittent working mode, and is difficult to apply to a continuous production line because the mixing effect needs to be checked by stopping the machine after mixing for a period of time;

2. large occupied area and inconvenient maintenance;

3. the mixing time is long: at the beginning of the stirring action, a large amount of powder initially contacts the solvent, and a part of the powder is mixed with air and the solvent to form lumps. The difficulty of stirring and mixing is increased, and in order to ensure the uniformity and stability of the mixed slurry, longer time is usually needed for mixing;

4. the powder-liquid mixing pumps on the market have uneven manufacturing precision, poor coaxiality and unstable equipment operation; 5. the powder-liquid mixing pump on the market is easy to cause material blockage;

6. when the materials are fed and mixed, dust is easy to generate, and pollution or damage is caused to people or the environment.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides an online powder liquid mixing pump of adaptable different materials, can prevent the putty.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an online powder-liquid mixing pump, includes the frame, sets up the motor in the frame and sets up the stator-rotor structure in the pump chamber, the rotor among the motor drive stator-rotor structure is rotatory, be equipped with into powder mouth, inlet and discharge gate on the pump chamber, the rotatory vacuum that produces of stator among the rotor relative stator-rotor structure makes the pump intracavity form the negative pressure in order to follow powder, solvent respectively powder mouth, inlet inhale into pump chamber internal mixing dispersion, and the thick liquids after the mixing dispersion are followed the discharge gate is discharged.

Preferably, the frame is provided with an anti-blocking device, the anti-blocking device comprises a pipe fitting communicated with the powder inlet and the pump cavity respectively, a wiper plug assembly is arranged in the pipe fitting, and the wiper plug assembly is driven to move by a driving mechanism arranged on the pipe fitting.

Preferably, the wiper plug assembly comprises a piston head arranged in the pipe fitting and a piston body connected with the piston head in a sealing way, and the driving mechanism drives the piston body to drive the piston head to move axially along the pipe fitting.

Preferably, the driving mechanism is a screw-nut mechanism, an air cylinder, a hydraulic cylinder or an electric push rod, and a driving rod of the screw-nut mechanism, the air cylinder, the hydraulic cylinder or the electric push rod is connected with the piston body.

Preferably, the plug assembly comprises a screw feeding rod arranged in the pipe fitting, and the screw feeding rod is driven to rotate by the driving mechanism.

Preferably, the stator and rotor structure comprises the rotor and the stator locked on a pump cavity end cover, the rotor comprises an installation body connected with the motor and a plurality of mixed teeth formed around the circumference of the installation body, the stator comprises an installation seat fixedly connected with the end cover and a thin-walled ring formed along the circumference of the installation seat, the plurality of mixed teeth extend into an inner ring of the thin-walled ring, and a gap is formed between the thin-walled ring and the mixed teeth.

Preferably, the mounting body is a disc, a hole and a key slot for mounting the spindle are formed in the middle of the disc, and the disc is provided with the plurality of mixing teeth; the plurality of mixing teeth are a plurality of inclined partition plates or a plurality of concentric layers of straight teeth which are distributed along the circumferential direction of the circle center of the disc.

Preferably, the mounting body is a cylinder, a hole and a key slot for mounting the main shaft are formed in the center of the cylinder, and each mixing tooth is a straight helical blade or an inclined helical blade arranged on the peripheral wall of the cylinder.

Preferably, the powder inlet and the liquid inlet are communicated with the pump cavity in a common rail mode through one conveying pipe or respectively communicated with the pump cavity in a double-rail mode through two conveying pipes.

Preferably, the main shaft of the motor is hermetically connected with the rotor through a mechanical seal, or the main shaft of the motor is connected with the rotor through an extension sleeve pump shaft.

According to the technical scheme provided by the utility model, the utility model discloses a novel equipment to online powder liquid mixing dispersion development, from the motor to rotor stator, can all be according to the material characteristic of difference, have pertinence to select collocation to reach best effect. Simultaneously, the anti-blocking device on the equipment can dredge in time after the pump is blocked, so that the production efficiency is improved.

Drawings

Fig. 1 is a schematic view of the dual-rail structure of powder and liquid of the present invention.

Fig. 2 is a schematic structural diagram of a fifth rotor according to the present invention.

Fig. 3 is a schematic structural diagram of a first stator according to the present invention.

Fig. 4 is a schematic structural diagram of a second stator of the present invention.

Fig. 5 is a schematic structural diagram of a third stator according to the present invention.

Fig. 6 is a schematic structural diagram of a fourth stator according to the present invention.

Fig. 7 is a schematic view of a direct-coupled structure of the motor spindle of the present invention.

Fig. 8 is a schematic view of the lengthened structure of the motor spindle sleeve of the present invention.

Fig. 9 is a schematic diagram of the powder-liquid common rail structure of the present invention.

Fig. 10 is a schematic diagram of a piston-pushing structure according to the present invention.

Fig. 11 is another schematic diagram of the piston propulsion structure of the present invention.

Fig. 12 is a schematic view of the spiral conveying structure of the present invention.

Fig. 13 is a schematic structural view of a first rotor according to the present invention.

Fig. 14 is a schematic structural view of a second rotor according to the present invention.

Fig. 15 is a schematic structural view of a third rotor according to the present invention.

Fig. 16 is a schematic structural view of a fourth rotor according to the present invention.

Detailed Description

The present invention will be described in detail with reference to fig. 1-16, wherein exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

The utility model provides an online powder-liquid mixing pump, it includes frame 100, sets up motor 101 in the frame and sets up the stator-rotor structure in pump chamber 2, rotor among the motor drive stator-rotor structure is rotatory, be equipped with into powder mouth 1, inlet 102 and discharge gate 103 on the pump chamber, the rotatory vacuum that produces of stator among the relative stator-rotor structure of rotor makes the interior negative pressure that forms of pump chamber follow powder, solvent respectively advance powder mouth, inlet suction pump intracavity mix the dispersion, the thick liquids after the mix the dispersion are followed the discharge gate is discharged. In the implementation process, the motor drives the rotor to rotate to generate vacuum, the pump cavity forms negative pressure to suck powder and solvent into the pump cavity, the powder and the solvent are fully mixed under the action of high-speed shearing of the rotor to form uniform and consistent slurry, and the uniform and consistent slurry is discharged through the discharge hole. And when the slurry is discharged, negative pressure is continuously generated in the pump cavity pump, so that the processes of continuously sucking, mixing and dispersing are completed, and online processing is realized.

The utility model discloses according to the material characteristic, powder liquid input mode can be divided into powder liquid double track formula and powder liquid common rail formula. The powder-liquid dual-rail type, as shown in fig. 1, is that the powder inlet 1 and the liquid inlet 102 are respectively communicated with the pump cavity 2 through two delivery pipes, which is suitable for materials with poor flowability. As fig. 9, the utility model provides a powder liquid common rail formula hybrid pump still, advance powder mouth 1 promptly and inlet 102 through a conveyer pipe with the pump chamber intercommunication, like venturi effect inlet pipe etc. specifically discharge gate 103 welds on pump chamber 2, it connects soon to connect tee bend 105 and reducing reducer head 106 to connect outside the pump cover, the entrance point of reducing reducer head is inlet 102, liquid thick liquids advances from reducer head, connect tee bend upper end soon for advancing powder mouth 1, the powder advances from the tee bend upper end that connects soon, both carry to pump chamber 2 through connecing the tee bend soon, then mix in the pump chamber and disperse, finally discharge gate 103 discharges, this mode is applicable to the material that mobility is good.

As shown in fig. 1, the utility model discloses a be equipped with anti-blocking device 104 in the frame, this anti-blocking device include with the pipe fitting 3 that powder inlet 1 and pump chamber 2 communicate respectively is provided with plug subassembly 4 in this pipe fitting, and this plug subassembly is through setting up actuating mechanism 5 drive motion on the pipe fitting. When the powder-liquid mixing pump is started, the solvent and the powder are respectively sucked into the pump from the liquid inlet and the powder inlet, and the powder-liquid is fully mixed and dispersed in the pump cavity through the high-speed rotation of the rotor in the pump. After a period of operation, as the slurry concentration rises, the viscosity increases and the pipeline is easily blocked. When the material blockage occurs, the plug scraping assembly driven by the driving mechanism moves, so that the effect of dredging the pipeline is achieved.

The utility model discloses the operating mode according to the difference has adopted two kinds of piston impulse type, auger delivery formula. As shown in fig. 10, the piston propulsion type specific structure is: the wiper plug assembly 4 comprises a piston head 41 arranged in the pipe fitting and a piston body 42 connected with the piston head in a sealing manner, the piston body is driven by the driving mechanism to drive the piston head to move along the axial direction of the pipe fitting, wherein the driving mechanism is a screw and nut mechanism, a nut 51 is fixed in the inner cavity of the pipe fitting, a screw 52 penetrates through the nut and is connected with the piston body, and the screw is driven to rotate by a hand wheel 53 arranged outside the pipe fitting. In the implementation process, the hand wheel is fixedly connected with the screw rod through a bolt and a key, and the screw rod penetrates through the nut to be connected with the piston body. When the hand wheel is rotated, the hand wheel drives the screw rod to rotate and move axially, and simultaneously the piston body is driven to drive the piston head to move axially, so that the piston head pushes plugs in the feed inlet and the pipe fitting into the pump cavity, and the pipeline is dredged. The utility model discloses a radially being equipped with spacer pin 31 on the pipe fitting, this spacer pin can restrict lead screw axial displacement, makes the piston head be reciprocating motion in-process shaking the hand wheel, and the spacer pin passes through the lead screw and can fix a position the piston head, avoids the piston head to stretch into pump chamber destruction rotor. The utility model provides a this kind of hand wheel lead screw formula structure adopts the lead screw to promote the plug subassembly, compact structure, and thrust is big, need not use power or air supply, and the range of application is wide.

As another way of piston propulsion, as shown in fig. 11, the driving mechanism may employ a cylinder 54, a hydraulic cylinder or an electric push rod (shown as a cylinder), and a driving rod of the cylinder, the hydraulic cylinder or the electric push rod is connected to the piston body, so as to directly drive the piston body to drive the piston head to reciprocate in the pipe, thereby dredging the pipe. In the implementation process, a magnetic switch can be arranged on the air cylinder, the hydraulic cylinder or the electric push rod to limit the air cylinder, the hydraulic cylinder or the electric push rod cylinder, so that the driving piston head is prevented from colliding with the rotor. The utility model provides a this piston impulse type structure adopts cylinder etc. to drive the plug subassembly, its simple structure, light in weight, and the gas tightness is good, can realize automated control through connecting the solenoid valve, is applicable to the powder that specific gravity is light. In addition, an electric push rod, a hydraulic rod and the like can be adopted to drive the piston assembly according to the requirements of the whole process system.

As shown in fig. 12, the spiral conveying structure of the present invention is: the plug assembly comprises a screw feeding rod 43 arranged in the pipe fitting, the screw feeding rod is driven to rotate by the driving mechanism, the driving mechanism is a pneumatic motor or an electric motor 55 (shown as an electric motor), and an output shaft of the pneumatic motor or the electric motor is connected with the screw feeding rod. After the equipment is electrified, the pneumatic motor or the electric motor drives the spiral feeding rod to rotate, and the materials are conveyed by the spiral structure. Because the spiral feeding of the spiral feeding rod has a forced feeding effect, the pipeline can be permanently unblocked. The utility model provides a spiral delivery formula adopts the pay-off of auger delivery pole, can realize forcing the feed, can continuously guarantee that the pipeline is unobstructed, and this structure generally starts along with the mixing pump starts together, is applicable to the powder that is difficult to bond. The spiral conveying type feeding structure can be driven by a speed reducing motor, a variable frequency motor and a pneumatic motor.

The utility model discloses an actuating mechanism passes through clamp 6 to be fixed on the pipe fitting, its simple to operate is swift. The piston head and the piston body are sealed by the U-shaped sealing piece 7, and when the reciprocating motion sealing is ensured, the wall of the pipeline can be scraped, so that powder is prevented from being adhered to the wall, and a caking block is formed. From the above, the utility model discloses a piston impulse type, auger delivery formula are dredged. The piston propulsion mode can adopt a hand screw propulsion mode, a pneumatic piston propulsion mode, an electric push rod piston propulsion mode, a hydraulic cylinder piston propulsion mode and the like, the piston heads are made of different materials, and SUS304, PTFE and the like can be selected according to the characteristics of contact materials. The utility model also provides a screw conveying formula adopts the rotatory pay-off of actuating mechanism drive hob, and wherein actuating mechanism can adopt electric motor drive, pneumatic motor drive etc. and the structure of hob has and takes shaft type and shaftless two kinds of structures.

The utility model discloses a rotor including motor drive's installation body 80 and around this installation body circumference fashioned there is a plurality of mixed tooth, the stator include with end cover fixed connection's hollow mount pad 90 and along this mount pad circumference fashioned thin wall ring, the mixed tooth of several stretches into thin wall ring inner ring, thin wall ring and mix and be formed with the clearance between the tooth. In the implementation process, the rotor is driven to rotate by the motor, the mounting body and the mixing teeth rotate along with the rotor, the thin-wall circular ring is fixed on the end cover along with the mounting seat, and therefore the relative motion between the thin-wall circular ring and the mixing teeth can generate shearing force on materials, the sucked materials can be sheared at high speed, and the purposes of mixing and dispersing are achieved.

The utility model provides a structure of first rotor, baffle type rotor promptly, as figure 13, its installation body 80 is a disc 81, has seted up the installation in the middle of the disc the hole 82 and the keyway of main shaft are equipped with on the disc the mixed tooth of several, the mixed tooth of several is for using the edge the several oblique baffle 83 of the centre of a circle circumference distribution of disc, it can be used to break up of large granule material and mix. As the structure of the second rotor, namely, the fine-toothed rotor, as shown in FIG. 14, the plurality of mixing teeth are concentric layers of straight teeth 84 distributed circumferentially along the center of the circular disk, which can be used for dispersing and mixing the superfine material to enhance the emulsifying and homogenizing effect. As the structure of the third rotor, namely the integrated rotor, as shown in FIG. 15, the mounting body is the inner and outer turnplates which are spliced with each other, the inner turnplate 85 is provided with a hole and a key slot for mounting the main shaft, the outer turnplate 86 is provided with the plurality of mixing teeth, and the mixing teeth are a plurality of centrifugal blades 861 which are obliquely arranged and are uniformly distributed along the circumference of the outer turnplate.

The utility model discloses still provide the structure of fourth kind of rotor, like fig. 16, straight spiral rotor promptly, its installation body is the cylinder, and this cylinder center is equipped with the installation the hole and the keyway of main shaft, each mix the tooth and be the straight helical blade 87 that sets up at this cylinder perisporium. As the structure of the fifth rotor, the utility model discloses on the basis of fourth rotor structure, change straight helical blade into oblique helical blade 88, as fig. 2, the oblique spiral rotor promptly, these two kinds of rotors can be used to the thick liquids that mobility is strong.

The first stator structure provided by the present invention, as shown in fig. 3, is a skewed tooth stator, in which the thin-wall ring is in a skewed tooth shape 91, and has high shearing and dispersing functions; as a second stator structure, as shown in fig. 4, the emulsifying head stator is provided with two rows of inclined holes 92 axially arranged along the radial direction on the thin-wall ring, and the two rows of inclined holes have opposite inclined directions, so that the emulsifying head stator has emulsifying and dispersing effects and is suitable for high-viscosity and difficult-to-disperse materials; as a third stator structure, as shown in fig. 5, the stator is a circular-hole sieve-shaped stator, which has a plurality of circular holes 93 radially formed on the thin-wall circular ring, and is suitable for mixing and dispersing relatively fine materials; as a fourth stator structure, as shown in fig. 6, the stator is a transverse slot screen-shaped stator, which has a plurality of transverse slots 94 radially formed on the thin-wall ring, and is suitable for mixing and dispersing medium-fineness materials.

The utility model discloses according to the difference of material characteristic, provide the rotor of different structural style, specifically be: an oblique screw type rotor, a straight screw type rotor, a fine tooth type rotor, a disc type rotor and a cartridge type rotor; simultaneously according to the difference of material characteristic, the stator also has different structural style, promptly: the device comprises a helical tooth stator, an emulsifying head stator, a round hole sieve-shaped stator and a transverse slot sieve-shaped stator; and the holes on the stator mounting seat can be round, long-strip-shaped, oblique groove-shaped and the like, and the size and the number of the holes are determined according to the characteristics of materials. The tooth-shaped stator and the tooth-shaped rotor can be divided into coarse teeth, middle teeth and fine teeth, the thickness of the teeth determines the property of the used material, and the more sparse the tooth shape is, the larger the particle size of the material which can be processed is; the finer the tooth form, the smaller the particle size of the material that can be processed. In the implementation process, different rotors and different stators can be matched according to material characteristics, and the shapes and the number of the openings on the rotors and the stators can be correspondingly adjusted.

In the implementation process, the utility model discloses the main shaft 107 of motor directly is connected with rotor sealing through mechanical seal 108, and hookup extension structures such as shaft coupling, axle sleeve are not used to the centre, and motor spindle associated mode is promptly, as figure 7. The mode adopts various motor types such as customized servo motors, three-phase asynchronous motors, variable frequency motors or explosion-proof motors, the main shaft of the motor is directly connected with the rotor, a coupling, a shaft sleeve and other connection extension structures are not used in the middle, the equipment precision is high, the operation stability is good, the noise is low, and the motor overload capacity is strong. The utility model discloses also can adopt motor spindle sleeve extension formula, like fig. 8, it is that the main shaft 107 that adopts the motor passes through sleeve pump shaft 109 and is connected with the rotor. The structure has good universality, simple structure and convenient maintenance. The AC asynchronous motor has wide supporting power range and wide application range.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. The utility model provides an online powder-liquid mixing pump, includes the frame, sets up motor in the frame and sets up the stator-rotor structure in the pump chamber, the rotor among the motor drive stator-rotor structure is rotatory, be equipped with into powder mouth, inlet and discharge gate on the pump chamber, its characterized in that: the vacuum generated by the rotation of the rotor relative to the stator in the stator-rotor structure enables negative pressure to be formed in the pump cavity so as to suck powder and solvent into the pump cavity from the powder inlet and the liquid inlet respectively for mixing and dispersing, and the mixed and dispersed slurry is discharged from the discharge hole.

2. The online powder-liquid mixing pump of claim 1, wherein: the frame is provided with an anti-blocking device, the anti-blocking device comprises a pipe fitting communicated with the powder inlet and the pump cavity respectively, a plug component is arranged in the pipe fitting, and the plug component is driven to move by a driving mechanism arranged on the pipe fitting.

3. The online powder-liquid mixing pump of claim 2, wherein: the wiper plug assembly comprises a piston head arranged in the pipe fitting and a piston body connected with the piston head in a sealing mode, and the driving mechanism drives the piston body to drive the piston head to move axially along the pipe fitting.

4. The online powder-liquid mixing pump of claim 3, wherein: the driving mechanism is a screw rod nut mechanism, an air cylinder, a hydraulic cylinder or an electric push rod, and a driving rod of the screw rod nut mechanism, the air cylinder, the hydraulic cylinder or the electric push rod is connected with the piston body.

5. The online powder-liquid mixing pump of claim 2, wherein: the plug scraping component comprises a spiral feeding rod arranged in the pipe fitting, and the spiral feeding rod is driven to rotate by the driving mechanism.

6. The online powder-liquid mixing pump of claim 1, wherein: the stator and rotor structure comprises a rotor and a stator locked on a pump cavity end cover, the rotor comprises an installation body connected with the motor and a plurality of mixed teeth formed around the circumference of the installation body, the stator comprises an installation seat fixedly connected with the end cover and a thin-wall circular ring formed along the circumference of the installation seat, the plurality of mixed teeth extend into an inner ring of the thin-wall circular ring, and a gap is formed between the thin-wall circular ring and the mixed teeth.

7. The online powder-liquid mixing pump of claim 6, wherein: the mounting body is a disc, a hole and a key groove for mounting the main shaft are formed in the middle of the disc, and the disc is provided with the plurality of mixing teeth; the plurality of mixing teeth are a plurality of inclined partition plates or a plurality of concentric layers of straight teeth which are distributed along the circumferential direction of the circle center of the disc.

8. The online powder-liquid mixing pump of claim 6, wherein: the mounting body is a cylinder, a hole and a key groove for mounting the main shaft are formed in the center of the cylinder, and each mixing tooth is a straight helical blade or an inclined helical blade arranged on the peripheral wall of the cylinder.

9. The online powder-liquid mixing pump of claim 1, wherein: the powder inlet and the liquid inlet are communicated with the pump cavity in a common rail mode through a conveying pipe, or are respectively communicated with the pump cavity in a double-rail mode through two conveying pipes.

10. The online powder-liquid mixing pump of claim 1, wherein: the main shaft of the motor is hermetically connected with the rotor through a mechanical seal; and a main shaft of the motor is connected with the rotor through a pump shaft of the extension sleeve.

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