CN111514781A - Shearing and stirring mechanism for production of drilling fluid lubricant - Google Patents
Shearing and stirring mechanism for production of drilling fluid lubricant Download PDFInfo
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- CN111514781A CN111514781A CN202010377674.9A CN202010377674A CN111514781A CN 111514781 A CN111514781 A CN 111514781A CN 202010377674 A CN202010377674 A CN 202010377674A CN 111514781 A CN111514781 A CN 111514781A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
- B01F27/054—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation
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Abstract
The invention discloses a shearing and stirring mechanism for producing a drilling fluid lubricant, which comprises a central rotating shaft, wherein a plurality of stirring assemblies are axially arranged on the central rotating shaft, each stirring assembly comprises an elastic part and two stirring blades, the two stirring blades are rotationally connected with each other by long edges, and two ends of the elastic part are respectively connected with the two stirring blades; the two stirring blades are attached to each other to move when being subjected to circumferential pressure. According to the shearing and stirring mechanism for producing the drilling fluid lubricant, the stirring assembly is of a deformable structure, the two stirring blades can be attached to each other under circumferential pressure, so that the applied pressure is reduced, the gradual change of the viscosity in the preparation process of the drilling fluid lubricant is well passively adapted, and the service life of the whole driving system is prolonged.
Description
Technical Field
The invention relates to chemical equipment, in particular to a shearing and stirring mechanism for producing a drilling fluid lubricant.
Background
Drilling fluid lubricants (Lubricants for drilling fluids) are used primarily to reduce the flow resistance of drilling fluids and the filter cake coefficient of friction. As is known, the main process of preparing the drilling fluid lubricant is heating and stirring, and various components are sequentially added and stirred under the condition that the temperature of a heating mechanism is controlled to obtain a corresponding finished product, for example, the application publication No. CN108949123A entitled "drilling fluid lubricant and its preparation method and application" provides a drilling fluid lubricant comprising: rapeseed oil, polyether, ester base oil, Span-80 sorbitan oleate, EL-40 polyoxyethylene castor oil, thiophosphoric acid imidazole salt extreme pressure antiwear agent and defoaming agent. During preparation, in a reaction kettle capable of being heated and stirred, firstly, 25.0 kg of rapeseed oil, 25.0 kg of polyether and 25.0 kg of ester base oil (trimethylolpropane oleate) are added, the mixture is stirred and heated to 55 ℃, 10.0 kg of Span-80 sorbitan oleate, 12.0 kg of EL-40 polyoxyethylene castor oil and 2.5 kg of imidazole thiophosphate extreme pressure antiwear agent are added, the mixture is stirred for 1 hour, finally, 0.5 kg of methyl silicone oil is added, and the stirring is continued for 1 hour to obtain light yellow viscous liquid, namely the drilling fluid lubricant. Also provided are similar drilling fluid lubricants, as in the patent application publication nos. CN105567177A and CN 104419387A.
In the prior art, the lubricant is basically prepared in a heating and stirring reaction kettle at one time, multiple heating and stirring processes are realized in the preparation process of the lubricant, and the viscosity of liquid stirred at each time is different, which brings a technical problem. For solving this problem, the design has many grades of rotational speeds and is directed at the agitated vessel of high consistency specially among the prior art, like the utility model patent of the grant bulletin number CN206701135U, it just provides a agitator to high consistency glue, like the utility model patent of the grant bulletin number CN207769700U again, it provides the magnetic stirring device who is used for low consistency solution, like the utility model patent of the grant bulletin number CN207970855U again, it provides a can be according to the phenolic resin adhesive reation kettle of material consistency change stirring frequency. The prior art deals with this change in consistency in a variety of different ways.
The viscosity of the drilling fluid lubricant changes in real time, one reaction process of the drilling fluid lubricant is about one hour, and the viscosity of the fluid changes gradually in the time period, so that the problem that the viscosity of the fluid changes gradually cannot be completely adapted to any solution, such as a two-stage or multi-stage stirring kettle.
Disclosure of Invention
The invention aims to provide a shearing and stirring mechanism for producing a drilling fluid lubricant, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a shearing and stirring mechanism for producing drilling fluid lubricant comprises a central rotating shaft, a plurality of stirring components are arranged on the central rotating shaft along the axial direction,
each stirring assembly comprises an elastic piece and two stirring blades, the two stirring blades are rotatably connected with each other by long edges, and two ends of the elastic piece are respectively connected with the two stirring blades;
the two stirring blades are attached to each other to move when being subjected to circumferential pressure.
In the shearing and stirring mechanism, the number of the elastic members is multiple, and the multiple elastic members are arranged along the long edge of the stirring blade.
In the shearing and stirring mechanism, the elastic member is connected with the plate-shaped member, and the elastic member abuts against the stirring blade through the plate-shaped member.
In the shearing and stirring mechanism, the elastic part is a torsion spring, and the two tail ends of the torsion spring are respectively abutted to the two stirring blades.
In the shearing and stirring mechanism, the elastic part is of an arc elastic telescopic structure, and the arc elastic telescopic structure comprises an arc telescopic rod and an outer sleeve or an inner sleeve arranged on the elastic structure on the arc telescopic rod.
In the shearing and stirring mechanism, the two ends of the arc-shaped telescopic rod are provided with the radial expansion parts, the elastic structure is a spring, and the spring is sleeved outside the arc-shaped telescopic rod, and the two ends of the spring are respectively abutted against the two radial expansion parts.
In the above shearing and stirring mechanism, the stirring assembly includes a rotating shaft, the rotating shaft is rotatably connected to the central rotating shaft, and at least one of the two stirring leaves is rotatably connected to the central rotating shaft.
The shearing and stirring mechanism further comprises a heating mechanism, wherein a vertical conveying blade is arranged at the bottom end of the central rotating shaft and used for conveying liquid flow to the heating mechanism downwards in an oriented mode.
In the shearing and stirring mechanism, the tail end of the vertical conveying blade is a guide part extending obliquely downwards, and the edge of the guide part is provided with the convex radial blocking piece.
In the shearing and stirring mechanism, the heating part is a disk-shaped heating net.
In the technical scheme, the shearing and stirring mechanism for producing the drilling fluid lubricant has the advantages that the stirring assembly is of a deformable structure, the two stirring blades are mutually attached under circumferential pressure so as to reduce the pressure, the gradual change of the viscosity in the preparation process of the drilling fluid lubricant is well passively adapted, and the service life of the whole driving system is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram of a shear mixing mechanism for producing drilling fluid lubricant according to an embodiment of the present invention in a first state;
fig. 2 is a schematic structural diagram of a shearing and stirring mechanism provided in an embodiment of the present invention in a second state;
FIG. 3 is a schematic structural diagram of a stirring assembly according to another embodiment of the present invention in a first state;
FIG. 4 is a schematic structural diagram of a stirring assembly according to another embodiment of the present invention in a second state;
FIG. 5 is a schematic structural diagram of a stirring assembly according to a further embodiment of the present invention in a first state;
FIG. 6 is a schematic structural diagram of a stirring assembly according to a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a shearing and stirring mechanism according to still another embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a shearing and stirring mechanism according to still another embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a shearing and stirring mechanism according to still another embodiment of the present invention;
FIG. 10 is a schematic structural view of a vertical transfer blade according to still another embodiment of the present invention;
fig. 11 is a schematic structural diagram of a shearing and stirring mechanism according to still another embodiment of the present invention.
Description of reference numerals:
1. a central rotating shaft; 2. stirring blades; 2.1, axial clearance; 3. an elastic member; 3.1, arc-shaped telescopic rods; 3.2, a spring; 4. a plate-like member; 5. a rotating shaft; 6. a vertical conveying blade; 6.1, a guide part; 6.2, radial blocking sheets; 7. a heating mechanism; 8. limiting the heating cylinder; 9. an extreme position definer; 10. a support sheet.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
In each embodiment of the present invention, the axial direction, the radial direction, the circumferential direction, the upper direction, the lower direction and other orientation words all use the central rotating shaft 1 of the preparation equipment as a reference, and for a straight shaft, the orientation words all have known meanings, for example, the axial direction refers to the direction of the central rotating shaft 1 line of the central rotating shaft 1, the radial direction refers to the diameter direction of the central rotating shaft 1, that is, the direction perpendicular to the central rotating shaft 1 line, the circumferential direction refers to the surrounding direction surrounding the central rotating shaft 1 line, and the rest is analogized in sequence and is not described again.
As shown in fig. 1 to 11, a shearing and stirring mechanism for producing a drilling fluid lubricant according to an embodiment of the present invention includes a central rotating shaft 1, a plurality of stirring assemblies are axially arranged on the central rotating shaft 1, each stirring assembly includes an elastic member 3 and two stirring blades 2, the two stirring blades 2 are rotatably connected with each other at long sides, and two ends of the elastic member 3 are respectively connected with the two stirring blades 2; the two stirring blades 2 are attached to each other when being subjected to circumferential pressure.
Specifically, this embodiment provides a shearing and stirring mechanism for a stirring device such as a stirring tank, in this embodiment, there are a plurality of stirring assemblies, such as three, four or even more, the plurality of stirring assemblies are arranged at different axial positions on a central rotating shaft 1, such as four stirring assemblies are arranged on the central rotating shaft 1 in a staggered manner, each stirring assembly includes an elastic member 3 and two stirring blades 2, each stirring blade 2 is a long strip-shaped sheet structure, which generally includes three edges, namely a long edge, a wide edge and a rear edge, during stirring, the stirring blades 2 mainly stir by a plane formed by the long edge and the wide edge, in this embodiment, two stirring blades 2 are rotatably connected by the long edge, if two stirring blades 2 are rotatably connected to a rotating shaft 5, the rotating shaft 5 is fixedly connected to the central rotating shaft 1, or two stirring blades 2 are directly rotatably connected, one stirring blade 2 is rotatably connected to the other stirring blade 2, one of the stirring blades 2 is rotatably connected to the central rotating shaft 1, or both of the stirring blades 2 are rotatably connected to the center, that is, the two stirring blades 2 have a plurality of different same positions, for example, the two stirring blades are 180 degrees, and at this time, the two stirring blades are coplanar, or the two stirring blades can be rotated to form an obtuse angle, a right angle, an acute angle, and the like. Meanwhile, two ends of the elastic piece 3 are respectively connected with the two stirring blades 2; the two stirring blades 2 move in a mutually jointed manner when being subjected to circumferential pressure, the circumferential pressure is the liquid flow pressure continuously applied to the stirring component during stirring, obviously, when being subjected to external force, the two stirring blades 2 can extrude the elastic component 3 to move in a mutually jointed manner, whereby, while stirring, the stirring vanes 2 stir the liquid so that it is squeezed by the circumferential flow of liquid, and at this time, under which it rotates to move towards a direction of movement in abutment with each other, as shown in figures 1-6, in the states of fig. 1, 3 and 5, the pressure of the liquid flow between the two stirring blades 2 is small, the viscosity of the liquid flow is small, the included angle between the two stirring blades is large, the stirring effect is larger, and in the states of fig. 2, 4 and 6, the liquid flow pressure between the two stirring blades 2 is larger, the viscosity of the liquid flow is larger, the included angle between the two stirring blades is smaller, and the stirring effect is smaller.
The shearing and stirring mechanism provided by this embodiment, in the stirring process, because the viscosity changes, under the same rotation speed, the larger the viscosity is, the larger the resistance brought to the stirring blade 2 by the liquid flow is, in this embodiment, because the stirring blade 2 itself is movable, and in the moving process, it is under two relative acting forces of the circumferential pressure (liquid flow pressure) and the elastic force of the elastic member 3, so in the process of viscosity change, along with the increase of the circumferential pressure, the stirring blade 2 cooperates with the movement through the elastic member 3 to automatically adjust the pressure, if the viscosity becomes larger, the stirring blade 2 rotates to reduce the projection area on the line surface of the central rotating shaft 1, thereby reducing the pressure, and vice versa, so in the process of viscosity real-time change, the resistance received by the stirring assembly does not change greatly, thereby reducing the abrasion to the driving system, the service life of the driving system is prolonged.
According to the shearing and stirring mechanism for producing the drilling fluid lubricant, provided by the embodiment of the invention, the stirring assembly is of a deformable structure, the two stirring blades 2 can be mutually attached under the circumferential pressure, so that the applied pressure is reduced, the gradual change of the viscosity in the preparation process of the drilling fluid lubricant is well passively adapted, and the service life of the whole driving system is prolonged.
In another embodiment provided by the present invention, preferably, there are a plurality of the elastic members 3, the elastic members 3 may be springs 3.2, torsion springs, leaf springs, or the like, a plurality of the elastic members 3 are arranged along the long sides of the stirring vanes 2, and the plurality of the elastic members 3 are relatively uniformly subjected to the deformation pressure.
In still another embodiment of the present invention, as shown in fig. 3-4, a plate-like member 4 is connected to the elastic member 3, the elastic member 3 abuts against the stirring vane 2 through the plate-like member 4, and the plate-like member 4 is used to provide a larger supporting surface, so as to reduce the probability of deformation of the stirring vane 2 under the impact of the continuous liquid pressure.
In still another embodiment of the present invention, as shown in fig. 1 to 6, the stirring assembly includes a rotating shaft 5, the rotating shaft 5 is rotatably connected to the central rotating shaft 1, at least one of the two stirring blades 2 is rotatably connected to the central rotating shaft 1, that is, the stirring assembly can integrally rotate with respect to the central rotating shaft 1, so that the stirring assembly can more adapt to the impact of the liquid flow, and the probability of deformation caused by excessive local stress is reduced.
In another embodiment of the present invention, as shown in fig. 3-4, the elastic member 3 is an arc elastic telescopic structure, the arc elastic telescopic structure includes an arc telescopic rod 3.1 and an elastic structure sleeved outside or inside the arc telescopic rod 3.1, the arc telescopic rod 3.1 is sequentially sleeved with a plurality of arc hollow sections, and an elastic structure, such as elastic compression rubber, is arranged inside the arc hollow sections; also can the outside of arc telescopic link 3.1 cup joint a spring 3.2, stirring leaf 2 of each butt in arc elastic expansion structure's both ends, so realize the support to stirring leaf 2 through arc elastic expansion structure's flexible, optional, elastic component 3 can also be the leaf spring this moment.
Furthermore, radial expansion parts are arranged at two ends of the arc-shaped telescopic rod 3.1, the elastic structure is a spring 3.2, the spring 3.2 is sleeved on the arc-shaped telescopic rod 3.1 in a sleeved mode, and the two ends of the spring are respectively abutted to the two radial expansion parts. The radial enlargement, i.e. the plate-like member 4, serves to lift the contact area and at the same time serves for transmission, when the spring 3.2 is extended, the spring 3.2 presses the radial enlargement, so that the radial enlargement pulls the arc-shaped telescopic rod 3.1 to extend.
In another embodiment of the present invention, as shown in fig. 5-6, the elastic member 3 is a torsion spring, two ends of the torsion spring are respectively abutted to the two stirring blades 2, the two stirring blades 2 are rotatably connected to each other through a rotating shaft 5, and the torsion spring is sleeved on the rotating shaft 5, obviously, the rotation of the stirring blades 2 compresses or extends the torsion spring, the rotation of the stirring blades 2 is driven by the torsion spring, and the elastic effect of the torsion spring is better for the rotational connection.
In the embodiments of the present invention, when the viscosity of the drilling fluid lubricant is too high, the stirring may only stay at the position of the stirring assembly, and the other parts hardly move, which brings two problems, one is that the stirring time is too long due to insufficient stirring, and the other is that the reaction fails due to local overheating of the heating mechanism 7, in order to solve these problems, in yet another embodiment provided by the present invention, as shown in fig. 9 to 10, the present invention further includes a heating mechanism 7, wherein a vertical conveying blade 6 is disposed at the bottom end of the central rotating shaft 1, and the vertical conveying blade 6 is used for directionally conveying the fluid flow to the heating mechanism 7 below. The vertical conveying blade 6 is used for conveying liquid flow vertically downwards, and the heating mechanism 7 comprises a heating part which is annularly arranged and is positioned below the vertical conveying blade 6, the vertical conveying blade 6 is used for directionally conveying the liquid flow to the heating part, and preferably, the heating part is a disc-shaped heating net, so that the moving speed of the liquid flow in the heating part area is increased, and the preparation failure caused by local overheating is prevented. In the present embodiment, in general, the stirring vanes 2 similar to the fan shape have the effect of vertical conveying, but preferably, as shown in fig. 10, the vertical conveying vanes 6 are terminated by the guide parts 6.1 extending obliquely downward, so as to have the guide effect, the liquid flow is guided obliquely downward by the guide parts 6.1 extending obliquely downward, the edges of the guide parts 6.1 are provided with the radial blocking sheets 6.2 in a convex shape, such as the radial blocking sheets 6.2 extending circumferentially or perpendicular to the guide parts 6.1, so as to prevent the liquid flow from flowing radially outward but axially downward, so that the liquid flow is guided downward with the greatest probability to be directionally conveyed to the heating net.
In this case, furthermore, a vertically downward flow guiding structure, such as a plurality of vertically downward grooves arranged in parallel, may be directly provided at the end of the guiding portion 6.1, so that the liquid flow is directly guided vertically downward through the grooves.
In the present invention, in order to solve the above problem, as shown in fig. 11, in another solution, the shearing and stirring mechanism provided in this embodiment further includes a cylindrical limiting heating cylinder 8, the upper opening and the lower opening of the cylindrical limiting heating cylinder 8 are provided, the stirring component is located in the limiting heating cylinder 8, the limiting heating cylinder 8 is made of a heat conductive metal, such as an aluminum alloy, the heating mechanism 7 is configured to heat the limiting heating cylinder 8, and if the heating mechanism 7 includes a plurality of heating resistance wires, the heating resistance wires are uniformly arranged inside or outside the limiting heating cylinder 8, so that the arrangement realizes harmony and unity of a plurality of technical effects: one of which, the spacing heating cylinder 8 area of heat conduction is very big, can effectually avoid appearing the excessive effect of local heating, its two, spacing heating cylinder 8 has formed the guide effect, make the liquid stream of stirring subassembly stirring must be by the motion of top to bottom or by bottom to top in spacing heating cylinder 8, force the liquid stream at the inside and outside circulation of spacing heating cylinder 8, very big reduction the phenomenon of local stirring only when big consistency, its three, because the liquid stream is at the inside and outside circulation of spacing heating cylinder 8, it has promoted the radiating effect of spacing heating cylinder 8, both have realized effectual combination.
In yet another solution, as shown in fig. 7-8, the stirring vane 2 includes multiple segments, an axial gap 2.1 is provided between two adjacent segments, each segment is connected to another stirring vane 2 through an independent elastic member 3, so that multiple advantages are provided, and due to the provision of the axial gap 2.1, on the premise of the same stirring area, the stirring vane 2 can be set wider, thereby stirring a larger area of liquid flow, and reducing the probability of local circulation when the viscosity is higher, and meanwhile, because the elastic members 3 are independently arranged at each segment of the stirring vane 2, the single elastic member 3 fails and does not affect the overall stirring effect of the stirring vane 2.
In one embodiment, as shown in fig. 7, two stirring blades 2 are provided with axial gaps 2.1, as shown in fig. 8, one stirring blade 2 is provided with an axial gap 2.1, while the other stirring blade is not provided, and the widths of the two stirring blades 2 can be different, so that the stirring can be effectively realized at low viscosity or at high viscosity, and local stirring is prevented.
In still another embodiment of the present invention, as shown in fig. 5-6, the present invention further includes a support plate 10, the support plate 10 is connected to the rotating shaft 5, or the rotating shaft 5 is a part of the support plate 10, and is a long side of the rotating shaft 5, that is, the two stirring vanes 2 are both rotatably connected to the support plate 10, the support plate 10 is provided with a limit position defining member 9, the limit position defining member 9 may be a block, a reinforcing rib, or a bracket structure, and is used for defining a limit movement position of the stirring vanes 2, in the limit movement position, the stirring vanes 2 abut against the limit position defining member 9, that is, the rotation limit positions of the two stirring vanes 2 are not mutually abutted but abutted against the limit position defining member 9, for example, the inclination of the top surface of the limit position defining member 9 is 15 degrees (highly adaptive fit), and the limit rotation angle of the stirring vanes 2 is 15 degrees, thereby control minimum stirring effect through extreme position definitional piece 9 limited extreme motion position, prevent that stirring leaf 2 from excessively rotating and losing stirring effect, extreme position definitional piece 9 and backing sheet 10 are whole promotes the intensity of stirring leaf 2 moreover, prevents to take place to warp and maintain stirring effect in the liquid stream that is too viscous.
Meanwhile, as shown in fig. 3 to 4, a limit position defining member 9 may be disposed inside the stirring vanes 2, such as a trapezoid structure, which may also limit the limit positions of the two stirring vanes 2, and the limit position defining member 9 may be fixed on one of the stirring vanes 2.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A shearing and stirring mechanism for producing drilling fluid lubricant comprises a central rotating shaft, a plurality of stirring components are arranged on the central rotating shaft along the axial direction, and is characterized in that,
each stirring assembly comprises an elastic piece and two stirring blades, the two stirring blades are rotatably connected with each other by long edges, and two ends of the elastic piece are respectively connected with the two stirring blades;
the two stirring blades are attached to each other to move when being subjected to circumferential pressure.
2. A shear mixing mechanism according to claim 1, wherein there are a plurality of said elastic members arranged along the long sides of said mixing blades.
3. A shear mixing mechanism as claimed in claim 2, wherein the resilient member has a plate member attached thereto, the resilient member abutting the mixing blades via the plate member.
4. A shear mixing mechanism as claimed in claim 2, wherein the resilient member is a torsion spring, and two ends of the torsion spring abut against the two mixing blades respectively.
5. A shear mixing mechanism as claimed in claim 2, wherein the resilient member is an arc-shaped resilient extension structure comprising an arc-shaped extension rod and a resilient structure sleeved on or over the arc-shaped extension rod.
6. A shear mixing mechanism according to claim 5, wherein the arc-shaped telescopic rod is provided with radial bulges at both ends thereof, the elastic structure is a spring, and the spring is sleeved on the arc-shaped telescopic rod and abuts against the two radial bulges at both ends thereof.
7. A shear mixing mechanism as in claim 1, wherein the mixing assembly includes a rotating shaft rotatably connected to the central shaft, at least one of the two mixing blades being rotatably connected to the central shaft.
8. The shear mixing mechanism of claim 1, further comprising a heating mechanism, wherein the bottom end of the central rotating shaft is provided with a vertical conveying blade, and the vertical conveying blade is used for directionally conveying the liquid flow to the heating mechanism below.
9. The shear mixing mechanism of claim 8, wherein the vertical conveying blade is terminated by a guide part extending obliquely downward, and the edge of the guide part is provided with a convex radial stop piece.
10. The shear mixing mechanism of claim 8, wherein the heating mechanism is a disk-shaped heating screen.
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| CN202010377674.9A CN111514781B (en) | 2020-05-07 | 2020-05-07 | Shearing and stirring mechanism for production of drilling fluid lubricant |
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| CN202010377674.9A CN111514781B (en) | 2020-05-07 | 2020-05-07 | Shearing and stirring mechanism for production of drilling fluid lubricant |
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| CN110984640A (en) * | 2019-12-24 | 2020-04-10 | 北京华瑞国盾信息科技有限公司 | Assembly type substation structure system for pipeline station |
| CN112374592A (en) * | 2020-10-26 | 2021-02-19 | 余音瑶 | Municipal works sewage treatment is with mixing flocculation device |
| CN115069111A (en) * | 2022-07-28 | 2022-09-20 | 江苏晨逸京泽生物科技有限公司 | Bioengineering homomixer |
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