A dispersion stirring device for fireproof paint production
By employing bidirectional shearing and three-dimensional stirring technologies, the problem of uneven mixing in high-solids-content fire-retardant coatings has been solved, achieving efficient dispersion and uniform mixing of particulate materials and improving the fire-retardant performance of the coatings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-04
- Publication Date
- 2026-04-17
AI Technical Summary
Existing unidirectional mixing equipment suffers from problems such as solid particles migrating to the mixing tank wall, stagnation in the central area, uneven mixing, and the formation of dead zones when processing fire-retardant coatings with high solid content and high viscosity, resulting in low mixing efficiency.
It adopts a bidirectional shearing mixing method, which forms a compound vortex by the counter-rotation of the rotating parts and the mixing shell. Combined with the electric push rod driving the lifting and dispersing control device of the mixing shell, it realizes three-dimensional mixing, actively collects and pulses the release of particulate materials, and ensures uniform mixing by adaptive adjustment of the blade angle.
It achieves efficient dispersion of particulate materials, reduces agglomeration, eliminates mixing dead zones, and ensures the uniformity and fire resistance of the coating.
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Figure CN121422781B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fire-retardant coating production equipment technology, and in particular to a dispersion and mixing device for fire-retardant coating production. Background Technology
[0002] In the production of fire-retardant coatings, efficient stirring is a crucial step in ensuring the uniform and stable dispersion of solid powders such as flame retardants and fillers in liquid resin bases, guaranteeing consistent and reliable fire-retardant performance (such as uniform expansion and char layer strength) of the final coating. Currently, the dispersion and stirring equipment commonly used in this field primarily utilizes a unidirectional, fixed-axis high-speed rotating impeller (e.g., a serrated disc dispersion disc or a paddle mixer) as its core mixing mechanism. This type of equipment mainly relies on the high shear force generated by the impeller in a single rotational direction to perform preliminary cutting and mixing of solid and liquid materials.
[0003] However, when dealing with special slurries such as fire-retardant coatings, which have high solid content, high viscosity, and are prone to agglomeration of solid powders, the traditional unidirectional stirring mode has gradually revealed its inherent technical defects. The fundamental problem lies in the severe limitations of the flow field structure generated by unidirectional rotation: First, the strong centrifugal force causes high-density solid particles to continuously migrate towards the wall of the mixing tank and form ring-shaped accumulations along the wall, resulting in excessively high local solid content; second, in the central region of the stirring shaft, an inefficient or even stagnant "vortex core" zone is formed due to the sharp decrease in shear force, where lightweight powders easily float and agglomerate; more importantly, the fluid momentum in the axial direction (i.e., the vertical direction of the tank) of this type of flow field is very weak, making it impossible to achieve sufficient circulation and exchange of materials throughout the entire tank. Therefore, mixing "dead zones" are easily formed at the top liquid surface, bottom corners, and stirring blind zones of the tank, where solid powders locally aggregate and separate into components in the liquid. Summary of the Invention
[0004] To overcome the above problems, the present invention provides a dispersion and mixing device for the production of fire-retardant coatings.
[0005] The technical solution is: a dispersion and mixing device for fire-retardant coating production, comprising:
[0006] The control panel is equipped with a control panel, a mixing tank, and a frame.
[0007] The lifting frame is slidably mounted on the frame;
[0008] A cover plate is fixedly connected to the lifting frame, and the cover plate is used to seal the opening of the mixing tank;
[0009] A support frame is fixedly connected to the lifting frame;
[0010] The first motor is fixedly connected to the support frame;
[0011] A rotating shaft is rotatably mounted on the support frame. The rotating shaft is fixedly connected to the output shaft of the first motor, and a rotating component is fixedly connected to the rotating shaft.
[0012] A first rotating sleeve is slidably disposed on the cover plate. The first rotating sleeve is provided with a second rotating sleeve. The second rotating sleeve is slidably connected to the rotating shaft. The second rotating sleeve is fixedly connected to a connecting frame. The connecting frame is fixedly connected to a plurality of symmetrically distributed stirring shells.
[0013] A drive unit, disposed on the cover plate, is used to drive the second rotating sleeve to rotate so that the revolution direction of the stirring shell is opposite to the rotation direction of the rotating component.
[0014] More preferably, the rotating component is provided with circumferentially equidistant through holes, an arc-shaped piece is fixedly connected to the through holes of the rotating component, and multiple L-shaped pieces are fixedly connected to the side wall of the rotating component.
[0015] More preferably, the stirring shell has an arc-shaped groove and multiple material guiding channels, the material guiding channels being connected to the arc-shaped groove, the arc-shaped groove being used to collect particulate material, and the material guiding channels being used to distribute particulate material in liquid material.
[0016] More preferably, the central axis of the stirring shell does not intersect with the central axis of the connecting frame, and when the stirring shell rotates circumferentially, the particulate material in the arc-shaped groove moves and distributes in the adjacent multiple material guiding channels.
[0017] More preferably, the driving unit includes:
[0018] The symmetrically distributed electric push rods are all fixed to the upper surface of the cover plate. The telescopic ends of all the electric push rods are fixed to a support base, and the support base is rotatably connected to the first rotating sleeve.
[0019] The second motor is fixed to the support base, and the output shaft of the second motor is connected to the second rotating sleeve by a sprocket and a chain.
[0020] More preferably, it further includes a dispersion control device disposed on each of the stirring shells, the dispersion control device comprising:
[0021] A fixed shell is attached to the stirring shell;
[0022] A sliding frame is slidably mounted on the fixed shell. A tension spring is fixedly connected between the sliding frame and the fixed shell. Multiple sealing members are fixedly connected to the sliding frame. The sealing members are used to block adjacent material guide channels. The end face of the sealing member located in the adjacent material guide channel is set as conical.
[0023] More preferably, the first rotating sleeve is fixedly connected to a deflecting ring, the deflecting ring is provided with multiple protrusions, the first rotating sleeve and the second rotating sleeve are rotatably connected, the output shaft of the second motor is driven to the first rotating sleeve by a sprocket and a chain to drive the deflecting ring to rotate, and the rotational speed of the first rotating sleeve is different from that of the second rotating sleeve. When the deflecting ring rotates, its protrusions periodically deflect the sliding frame.
[0024] More preferably, the stirring shell is also rotatably mounted with a plurality of vertically arranged cylindrical rods, each of which is fixed with a fixing plate, the fixing plate being used to drive particulate material in the liquid material to move horizontally.
[0025] More preferably, it further includes a blade adjusting mechanism disposed on the stirring shell, the blade adjusting mechanism comprising:
[0026] A rack is slidably disposed within the stirring shell;
[0027] A gear is fixed to the end of the cylindrical rod and meshes with the rack;
[0028] A sliding rod is slidably mounted on the stirring shell, and an inclined guide groove is provided on it. A pin is provided on the rack, and the pin of the rack slides within the inclined guide groove of the sliding rod.
[0029] More preferably, it also includes a positioning component, which includes an elastic pin fixed to the stirring shell and a plurality of positioning holes provided on the rack. The end of the elastic pin can be selectively engaged in different positioning holes to lock the rack. Beneficial effects
[0030] 1. Achieve high-intensity bidirectional shearing and reduce particle agglomeration time: By synchronously rotating the rotating part (clockwise) and the stirring shell driven by the second motor (counterclockwise), two vortices in different directions are formed in the mixing tank, which helps to break up solid particle agglomeration, reduce the aggregation between solid particles, and make the particulate material uniformly dispersed in the liquid material, thereby improving the mixing efficiency of the two.
[0031] 2. Three-dimensional dynamic stirring to reduce mixing dead zones: Under the programmed control of the control panel, the electric push rod can drive the stirring shell to perform precise lifting and lowering movements. This function makes the stirring effect no longer limited to a fixed level, but dynamically covers the entire space from the bottom of the tank to the liquid surface. It strongly disturbs the bottom where sediment is easily deposited and the top where foam is easily generated, forming a three-dimensional flow field with longitudinal, transverse and tangential directions, reducing mixing dead zones and ensuring the uniformity of materials in three-dimensional space.
[0032] 3. Active collection and pulsed release to control particle distribution: The arc-shaped groove on the stirring shell actively collects and enriches particles; the dispersion control device periodically opens the material guide channel to spray particles back into the high-shear flow field in a pulse form. This cycle process breaks the limitations of traditional passive mixing and can effectively prevent particle sedimentation and uneven distribution, further ensuring uniform mixing of liquid and particulate materials.
[0033] 4. Adaptive adjustment of impeller angle to enhance local micro-mixing: During the lifting and lowering of the mixing shell, the sliding rod is mechanically triggered by the cover plate or the bottom of the tank, which changes the tilt angle of the cylindrical rod and the adjacent fixed plate. This controls the reciprocating motion of the particulate material in the horizontal direction of the liquid material, forming a local reciprocating cycle. This adaptive adjustment mechanism breaks the tendency of particles to stagnate in the radial direction and further enhances the uniformity of micro-mixing. Attached Figure Description
[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0035] Figure 2 This is a cross-sectional view of the mixing tank and the cover plate of the present invention;
[0036] Figure 3 This is a cross-sectional view of the cover plate and the rotating shaft of the present invention;
[0037] Figure 4 This is a cross-sectional view of the support base and the first rotating sleeve of the present invention;
[0038] Figure 5 This is a three-dimensional structural diagram of the connecting frame and stirring shell of the present invention;
[0039] Figure 6 This is a three-dimensional structural diagram of the fixed shell and sliding frame of the present invention;
[0040] Figure 7 This is a cross-sectional view of the stirring shell and the fixing shell of the present invention;
[0041] Figure 8 This is a three-dimensional structural diagram of the cylindrical rod and the fixing plate of the present invention;
[0042] Figure 9 This is a cross-sectional view of the stirring shell and rack of the present invention.
[0043] The components in the diagram are labeled as follows: 1-Operating platform, 2-Control panel, 3-Mixing tank, 4-Frame, 5-Lifting frame, 6-Cover plate, 7-Support frame, 8-First motor, 9-Rotating shaft, 10-Rotating component, 1001-Arc-shaped piece, 1002-L-shaped piece, 11-Electric push rod, 12-Support base, 13-Second motor, 14-First rotating sleeve, 1401-Second rotating sleeve, 15-Connecting frame, 16-Mixing shell, 1601-Arc-shaped groove, 1602-Guide channel, 17-Fixed shell, 18-Sliding frame, 19-Sealing component, 20-Actuating ring, 21-Cylindrical rod, 22-Fixed plate, 23-Rack, 24-Gear, 25-Sliding rod, 26-Elastic pin, 27-Positioning hole. Detailed Implementation
[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention. Example 1
[0045] A dispersion and mixing device for the production of fire-retardant coatings, such as Figures 1-4As shown, the equipment includes: an operating platform 1, a control panel 2 fixedly attached to the upper surface of the operating platform 1, the control panel 2 being electrically connected to all electrical components of the equipment, a mixing tank 3 detachably mounted on the upper part of the operating platform 1, a frame 4 fixedly attached to the upper surface of the operating platform 1, and the control panel 2, mixing tank 3, and frame 4 arranged sequentially from front to back; a lifting frame 5 slidably mounted on the frame 4, the lifting frame 5 moving up and down along the frame 4; and a sealing plate 6 fixedly attached to the lower surface of the lifting frame 5, the size and position of the sealing plate 6 configured to seal the opening of the mixing tank 3, and the lifting frame 5 automatically locking to the frame 4 after stopping, thus sealing the mixing tank 3. The cover plate 6 and the mixing tank 3 remain sealed. A support frame 7 is fixed to the upper part of the lifting frame 5. A first motor 8 is fixed to the support frame 7. A rotating shaft 9 is rotatably mounted on the support frame 7 and is fixedly connected to the output shaft of the first motor 8. A rotating component 10 is fixedly attached to the lower part of the rotating shaft 9. The rotating component 10 is located inside the mixing tank 3 and has four circumferentially equidistant through holes. An arc-shaped plate 1001 is fixedly attached to each through hole of the rotating component 10. The rotating component 10 drives the four arc-shaped plates 1001 to rotate clockwise. The rotation of the arc-shaped plates 1001 drives the liquid material upwards, preventing particulate material from being stirred. The bottom of the mixing tank 3 is gathered, and multiple L-shaped pieces 1002 are fixedly connected to the side wall of the rotating part 10; the first rotating sleeve 14 is slidably disposed in the middle of the cover plate 6, and the first rotating sleeve 14 is provided with a second rotating sleeve 1401 (in embodiment 1, the two are fixedly connected, and in embodiment 2, the two are connected in other ways). The second rotating sleeve 1401 is slidably connected to the rotating shaft 9, and a connecting frame 15 is fixedly connected to the lower part of the second rotating sleeve 1401. The connecting frame 15 is fixedly connected to two symmetrically distributed stirring shells 16. The stirring shell 16 has an arc-shaped groove 1601 and four equidistantly distributed material guiding channels 1602. 602 is connected to the arc-shaped groove 1601, which is used to collect particulate materials. The guide channel 1602 is used to distribute particulate materials in the liquid material. The central axis of the stirring shell 16 does not intersect with the central axis of the connecting frame 15. This offset design allows the arc-shaped groove 1601 inside the stirring shell 16 to more effectively distribute the collected particulate materials to each guide channel 1602 through centrifugal force when the stirring shell 16 revolves. The drive unit is set on the cover plate 6 and is used to drive the second rotating sleeve 1401 to rotate so that the revolution direction of the stirring shell 16 is opposite to the rotation direction of the rotating part 10.
[0046] like Figures 1-4As shown, the drive unit includes: a pair of symmetrically arranged electric push rods 11, the cylinders of which are fixed to the upper surface of the cover plate 6. The telescopic rod ends of all the electric push rods 11 are connected to the support base 12. The support base 12 is rotatably connected to the outer wall of the first rotating sleeve 14 through bearings. The second motor 13 is fixed to the support base 12. The output shaft of the second motor 13 is connected to the second rotating sleeve 1401 through a sprocket and chain drive (first transmission assembly). In addition, the telescopic movement of the electric push rods 11 can drive the entire support base 12 and the second motor 13, the first rotating sleeve 14, the second rotating sleeve 1401, the connecting frame 15 and the stirring shell 16 connected thereto to move axially up and down along the rotating shaft 9.
[0047] The working principle of the dispersion and mixing equipment used in the production of fire-retardant coatings is as follows:
[0048] The user first starts the lifting frame 5 via the control panel 2. The lifting frame 5 moves the cover plate 6 upward, releasing the seal on the mixing tank 3. Then, liquid and granular materials are added into the mixing tank 3. Subsequently, the user starts the equipment via the control panel 2. The lifting frame 5 moves the cover plate 6 downward, sealing the mixing tank 3. Then, the first motor 8 drives the rotating shaft 9 and its rotating parts 10 to rotate clockwise. The L-shaped plate 1002 and the through hole with the arc plate 1001 on the rotating part 10 generate strong shearing and axial circulation of the material in the tank, forming the main turbulence. The rotation of the arc plate 1001 is used to stir the liquid material to flow upward.
[0049] At the same time, the second motor 13 works simultaneously. The second motor 13 drives the second rotating sleeve 1401 to rotate through the sprocket and chain, which in turn drives the connecting frame 15 and its two circumferentially distributed stirring shells 16 to rotate counterclockwise. This reverse double rotation generates extremely high relative speed and shear rate between the materials, which can instantly break up the particle agglomerates.
[0050] During the material mixing process, the user can select the working mode of the electric push rod 11 through the control panel 2, and control the extension end of the electric push rod 11 to move continuously or intermittently. The extension and retraction of the electric push rod 11 drives the first rotating sleeve 14 and the second rotating sleeve 1401 to move together through the support base 12, thereby driving the connecting frame 15 and all the mixing shells 16 to move synchronously in the mixing tank 3. This actively covers the material at every height level in the tank with the mixing action, especially strongly disturbing the sedimentation area at the bottom of the tank and the foam area at the top, forming a three-dimensional composite flow field in the longitudinal, transverse and tangential directions. This fundamentally eliminates the static mixing dead zone and ensures the uniformity of the material in three-dimensional space.
[0051] During the mixing of liquid materials, the particulate matter in the liquid material accumulates near the side wall of the mixing tank 3 (or at the bottom or top of the mixing tank 3). As the mixing shell 16 rotates, the arc-shaped groove 1601 on the mixing shell 16 simultaneously collects the accumulated particulate matter. The collected material is evenly distributed in multiple guide channels 1602. Then, under the circumferential rotation of the mixing shell 16, the material is evenly distributed in different areas of the liquid material through the guide channels 1602, effectively breaking the local agglomeration or sedimentation of the particulate matter, facilitating the uniform mixing of the liquid material and the particulate matter. After mixing for a period of time, the equipment can be turned off through the control panel 2. Example 2
[0052] This embodiment specifically discloses a dispersion and mixing device for fireproof coating production. Based on embodiment 1, it controls the uniform dispersion of particulate material in liquid material, so that the particulate material and liquid material are uniformly mixed, thereby enhancing the mixing efficiency between the two.
[0053] like Figures 4-6 As shown, it also includes a dispersion control device disposed on each stirring shell 16. The dispersion control device includes: two fixed shells 17, both fixed to the upper surface of the stirring shell 16; a sliding frame 18, slidably disposed on the two adjacent fixed shells 17, with a tension spring fixed between the sliding frame 18 and the fixed shells 17. The tension spring is always in a stretched state. The sliding frame 18 is fixed with four sealing members 19. The tension provided by the two adjacent tension springs is greater than the liquid resistance received by the four sealing members 19 during the circumferential rotation of the stirring shell 16. The sealing members 19 are used to block adjacent material guiding channels 1602. The end face of the sealing member 19 located in the adjacent material guiding channel 1602 is set as a cone shape to accurately block or open the material guiding channel 1602. At the same time, the cone shape guides the material in the material guiding channel 1602 to diffuse circumferentially.
[0054] like Figures 4-6 As shown, a toggle ring 20 is fixedly connected to the lower part of the first rotating sleeve 14. The toggle ring 20 is located between the cover plate 6 and the connecting frame 15. The toggle ring 20 has two symmetrically arranged protrusions. The first rotating sleeve 14 and the second rotating sleeve 1401 are rotatably connected. The output shaft of the second motor 13 is connected to the first rotating sleeve 14 through a sprocket and a chain drive (second transmission assembly). The transmission ratios of the first transmission assembly and the second transmission assembly are different, so that the rotational speed of the first rotating sleeve 14 is different from that of the second rotating sleeve 1401. When the toggle ring 20 rotates, its protrusions periodically actuate the sliding frame 18.
[0055] like Figure 5 and Figure 7As shown, three vertically arranged cylindrical rods 21 are also rotatably installed on the stirring shell 16. The three cylindrical rods 21 are equidistantly distributed, and a fixing plate 22 is fixed on the upper part of each cylindrical rod 21. The fixing plate 22 is used to drive the particulate material in the liquid material to move horizontally and reduce the aggregation time of the particulate material under the stirring action.
[0056] like Figure 6 , Figure 8 and Figure 9 As shown, the device further includes a blade adjustment mechanism disposed inside the stirring shell 16. The mechanism includes: a rack 23, which is slidably disposed along the length of the stirring shell 16; three gears 24, which are respectively fixed to the ends of adjacent cylindrical rods 21, and all three gears 24 mesh with adjacent racks 23; and a sliding rod 25, which is slidably disposed along the radial direction of the stirring shell 16. The sliding rod 25 has an inclined guide groove, and the pin disposed on the rack 23 is embedded in the inclined guide groove. When the sliding rod 25 is subjected to external force and slides radially, the radial motion is converted into the linear motion of the rack 23 through the cooperation of the inclined guide groove and the pin, thereby driving all gears 24 and cylindrical rods 21 to rotate synchronously, so as to realize the uniform adjustment of the tilt angle of the three fixed plates 22.
[0057] like Figure 8 and Figure 9 As shown, a positioning component for locking the adjustment angle is also provided. This positioning component includes multiple elastic pins 26 and multiple sets of positioning holes 27. One elastic pin 26 cooperates with two adjacent positioning holes 27. All elastic pins 26 are fixed to the stirring shell 16. Each elastic pin 26 consists of a shell, a spring, and a sliding post. The end of the sliding post on the elastic pin 26 is hemispherical, and the positioning hole 27 is hemispherical. Multiple positioning holes 27 are arranged along the movement direction of the rack 23. When the rack 23 moves to a specific position, the elastic pin 26 is engaged in the corresponding positioning hole 27 under the action of the internal spring, thereby locking the angle of the rack 23, gear 24, and fixing plate 22 in the current state.
[0058] The working principle based on the above description is as follows:
[0059] During the mixing process, as the mixing shell 16 revolves, under the action of centrifugal force, the denser solid particles are thrown towards the tank wall area (or accumulate at the bottom). Since the axis of the mixing shell 16 is parallel to the axis of revolution 9 but offset by a certain distance, the mixing shell 16 acts like a moving "collecting spoon". The end of the arc-shaped groove 1601 inside it is directly opposite the side wall of the mixing tank 3, or when the mixing shell 16 moves to the vicinity of the bottom of the mixing tank 3, the mixing shell 16 efficiently collects the particulate material.
[0060] Each mixing shell 16 is also equipped with a dispersion control device. In the initial state, the tension spring pulls the sliding frame 18, causing the conical sealing member 19 to block the inlet of the material guiding channel 1602, temporarily storing the particles in the arc-shaped groove 1601. Since the output shaft of the second motor 13 drives the first rotating sleeve and the second rotating sleeve respectively through the sprocket and chain, and the transmission ratios are different, the rotation speeds of the first rotating sleeve 14 and the second rotating sleeve 1401 are different. During the circumferential rotation of the mixing shell 16, the actuating ring 20 periodically passes over the sliding frame 18. The sliding frame 18 is squeezed and slides inward against the tension spring force, thereby pulling the sealing member 19 out of the material guiding channel 1602. The particles temporarily stored in the arc-shaped groove 1601 are then uniformly "injected" into the high-speed flow field around the mixing shell 16 under the action of gravity and centrifugal force through multiple material guiding channels 1602, realizing active and cyclic dispersion from the local high concentration area to the mainstream, effectively preventing particle sedimentation and uneven distribution.
[0061] Furthermore, during the mixing process of the mixing shell 16, when the mixing shell 16 moves closer to the cover plate 6, the cover plate 6 presses the sliding rod 25 to move. At this time, the sliding rod 25 moves downward relative to the mixing shell 16. The inclined guide groove on the sliding rod 25 drives the rack 23 to move through the pin. The rack 23 then drives the gear 24 meshing with it to rotate, thereby adjusting the angle of the cylindrical rod 21 and the fixed plate 22. After the adjustment is in place, the elastic pin 26 is engaged in the corresponding positioning hole 27 on the rack 23 under the action of the spring, locking the tilt angle of the fixed plate 22 in the adjusted state, so as to always keep the fixed plate 22 in this tilted state to move the mixing liquid material.
[0062] When the stirring shell 16 moves close to the bottom of the stirring tank 3, the sliding rod 25 moves in the opposite direction, causing the fixed plate 22 to swing to the opposite rotation. Then, the fixed plate 22 moves in the opposite direction while stirring the liquid material in this inclined state, and at the same time, it causes the particulate material in the liquid to move in the opposite direction. In these two states, the two inclined states of the fixed plate 22 cause the particulate material to move back and forth in the liquid material along the radial direction of the cover plate 6, avoiding the accumulation and retention of particulate material in a certain area of the liquid material for a long time.
[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.
Claims
1. A dispersion and mixing device for producing fire-retardant coatings, characterized in that, include: The control panel (1) is equipped with a control panel (2), a mixing tank (3) and a frame (4). The lifting frame (5) is slidably mounted on the frame (4); The cover plate (6) is fixed to the lifting frame (5), and the cover plate (6) is used to seal the opening of the mixing tank (3); The support frame (7) is fixedly connected to the lifting frame (5); The first motor (8) is fixedly connected to the support frame (7); A rotating shaft (9) is rotatably mounted on the support frame (7). The rotating shaft (9) is fixedly connected to the output shaft of the first motor (8). A rotating component (10) is fixedly connected to the rotating shaft (9). The first rotating sleeve (14) is slidably disposed on the cover plate (6). The first rotating sleeve (14) is provided with a second rotating sleeve (1401). The second rotating sleeve (1401) is slidably connected to the rotating shaft (9). The second rotating sleeve (1401) is fixedly connected to a connecting frame (15). The connecting frame (15) is fixedly connected to a plurality of symmetrically distributed stirring shells (16). A drive unit is disposed on the cover plate (6) and is used to drive the second rotating sleeve (1401) to rotate so that the revolution direction of the stirring shell (16) is opposite to the rotation direction of the rotating component (10); The stirring shell (16) has an arc-shaped groove (1601) and multiple material guiding channels (1602). The material guiding channels (1602) are connected to the arc-shaped groove (1601). The arc-shaped groove (1601) is used to collect particulate materials, and the material guiding channels (1602) are used to distribute particulate materials in liquid materials. The central axis of the stirring shell (16) does not intersect with the central axis of the connecting frame (15). When the stirring shell (16) rotates circumferentially, the particulate material in the arc groove (1601) moves and is distributed in the adjacent multiple material guiding channels (1602). The driving unit includes: The symmetrically distributed electric push rods (11) are all fixed to the upper surface of the cover plate (6). The telescopic ends of all the electric push rods (11) are fixed to a support seat (12). The support seat (12) is rotatably connected to the first rotating sleeve (14). The second motor (13) is fixed to the support base (12), and the output shaft of the second motor (13) is connected to the second rotating sleeve (1401) by a sprocket and a chain drive. It also includes a dispersion control device disposed on each of the stirring shells (16), the dispersion control device comprising: The fixed shell (17) is fixedly attached to the stirring shell (16); A sliding frame (18) is slidably disposed on the fixed shell (17). A tension spring is fixedly connected between the sliding frame (18) and the fixed shell (17). A plurality of sealing members (19) are fixedly connected to the sliding frame (18). The sealing members (19) are used to block the adjacent material guiding channels (1602). The end face of the sealing member (19) located in the adjacent material guiding channel (1602) is set as conical. The first rotating sleeve (14) is fixedly connected to a deflecting ring (20), which is provided with multiple protrusions. The first rotating sleeve (14) is rotatably connected to the second rotating sleeve (1401). The output shaft of the second motor (13) is driven to rotate the deflecting ring (20) by a sprocket and a chain. The rotational speed of the first rotating sleeve (14) is different from that of the second rotating sleeve (1401). When the deflecting ring (20) rotates, its protrusions periodically deflect the sliding frame (18).
2. The dispersing and stirring apparatus for producing a fireproof paint according to claim 1, wherein The rotating component (10) is provided with through holes distributed circumferentially. An arc-shaped piece (1001) is fixedly connected to the through hole of the rotating component (10), and a plurality of L-shaped pieces (1002) are fixedly connected to the side wall of the rotating component (10).
3. The dispersing and stirring apparatus for fireproof paint production according to claim 1, characterized in that, The stirring shell (16) is also rotatably mounted with a number of vertically arranged cylindrical rods (21), and each cylindrical rod (21) is fixed with a fixing plate (22), which is used to drive the particulate material in the liquid material to move horizontally.
4. The dispersing and agitating apparatus for fireproof paint production according to claim 3, wherein It also includes a blade adjustment mechanism disposed on the stirring shell (16), the blade adjustment mechanism comprising: The rack (23) is slidably disposed within the stirring shell (16); The gear (24) is fixed to the end of the cylindrical rod (21) and meshes with the rack (23); The sliding rod (25) is slidably disposed on the stirring shell (16), and an inclined guide groove is provided on it. A pin is provided on the rack (23), and the pin of the rack (23) slides in the inclined guide groove of the sliding rod (25).
5. The dispersion and mixing equipment for producing fire-retardant coatings according to claim 4, characterized in that, It also includes a positioning component, which includes an elastic pin (26) fixed on the stirring shell (16) and a plurality of positioning holes (27) provided on the rack (23). The end of the elastic pin (26) can be selectively engaged in different positioning holes (27) to lock the rack (23).
Citation Information
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Multi-layer stirring dispersion machine for fireproof coating production
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