A mortar admixture mixing and stirring device and a control method thereof

Abstract

This invention belongs to the field of mortar admixture production technology, and particularly relates to a mortar admixture mixing and stirring device and control method; wherein the mixing and stirring device includes: a mixing tank, which is vertically arranged, with a feeding port at the top and a discharge port at the bottom; a mixing main shaft, which extends into the mixing tank from the bottom and is rotatably fixed, and has several uniformly distributed mixing components on the mixing main shaft; a mixing motor, which is located at the bottom of the mixing tank and drives the mixing main shaft to rotate; and a flow guiding component, which has two spaced flow guiding components on the outside of the side wall of the mixing tank.

Description

Technical Field

[0001] This invention belongs to the field of mortar admixture production technology, and particularly relates to a mortar admixture mixing and stirring device and control method. Background Technology

[0002] Concrete admixtures are substances added to improve and adjust the properties of concrete. Currently, commonly used admixtures can be categorized by function as follows: admixtures that improve the rheological properties of the mixture, including water-reducing agents, air-entraining agents, and thickeners; admixtures that adjust the setting and hardening properties of concrete, such as retarders, accelerators, and quick-setting agents; admixtures that improve concrete durability, such as air-entraining agents, rust inhibitors, and crack-resistant agents; and admixtures with other functions, such as expanding agents, coloring agents, and antifreeze agents.

[0003] The production of concrete admixtures requires the use of a mixing device. The mixing process involves adding materials such as deionized water-modified nano-calcium carbonate powder, polybenzoxazole fiber, ultra-high molecular weight polyethylene fiber, and ACG powder into the mixing device in a specific order. However, powder clumping is prone to occur during the mixing process, and the powder raw materials may also clump due to moisture. The mixing paddle in the mixing device is unable to fully break up the clumps of powder, which affects the mixing effect and thus the production quality of the mortar admixture. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a mixing device for mixing mortar admixtures that provides ideal mixing results and facilitates the breaking up of clumps.

[0005] In view of this, the present invention provides a mortar admixture mixing device, comprising:

[0006] The mixing tank is vertically arranged, with a feeding port at the top and a discharge port at the bottom.

[0007] A mixing spindle extends from the bottom of the mixing tank and is rotated and fixed, and several evenly distributed mixing components are provided on the mixing spindle;

[0008] A mixing motor is installed at the bottom of the mixing tank, and the mixing main shaft is driven to rotate by the mixing motor;

[0009] The flow-guiding assembly consists of two spaced-apart flow-guiding assemblies installed on the outer side wall of the mixing tank.

[0010] The hybrid components include:

[0011] A mixing bushing is fixedly sleeved on the mixing spindle.

[0012] The hybrid blade assembly has several hybrid blade assemblies evenly distributed circumferentially along the outer edge of the hybrid bushing.

[0013] In the above technical solution, both drainage components are further comprising drainage tubes evenly distributed around the circumference, and the drainage tubes in the two drainage components are alternately distributed vertically.

[0014] The drainage fittings include:

[0015] An external drainage pipe is located outside the mixing tank and extends into the mixing tank. The external drainage pipe in one drainage assembly connects the upper and middle parts of the mixing tank, and the external drainage pipe in the other drainage assembly connects the middle and lower parts of the mixing tank.

[0016] An internal diversion hopper is installed close to the inner wall of the mixing tank, and the bottom of the internal diversion hopper is connected to the external diversion pipe.

[0017] A guide pipe is provided at the connection between the external guide pipe and the internal guide bucket. The guide pipe is arc-shaped.

[0018] The flow guiding assembly includes a flow guiding impeller disposed at the bottom of the outer flow guiding pipe, a flow guiding shaft located inside the outer flow guiding pipe, and a flow guiding motor disposed on the outer flow guiding pipe or outside the flow guiding pipe and driving the flow guiding shaft to rotate.

[0019] The cross-sectional area of ​​the external drainage pipe decreases from top to bottom; the top view of the internal drainage hopper is U-shaped, and the cross-sectional area decreases from top to bottom; and an inclined guide section is provided at the upper end of the internal drainage hopper, which slopes downward from the inner wall of the mixing tank towards the middle of the mixing tank.

[0020] In the above technical solution, the hybrid blade assembly further includes:

[0021] An intermediate cutting plate is horizontally arranged and has a pointed end formed on one side, and a connecting plate for connecting with a hybrid bushing is formed on the intermediate cutting plate.

[0022] Side support wings: Two symmetrically arranged side support wings are provided at the upper and lower ends of the middle cutting plate away from the tip.

[0023] Intermediate partitions are provided between the two side support wings, with several intermediate partitions evenly distributed.

[0024] The intermediate support assembly consists of several equally spaced intermediate support assemblies arranged between the two side support wings.

[0025] The side support wing is movably connected to the middle cutting plate, the middle partition plate is fixedly connected to the side of the middle cutting plate away from the tip, and the middle partition plate passes through the side support wing.

[0026] In the above technical solution, the cross-section of the intermediate cutting plate is streamlined, and the cross-sectional area increases from the direction of rotation of the mixing main shaft to the opposite direction, with the tip formed on the side with the smaller cross-sectional area of ​​the intermediate cutting plate.

[0027] The middle cutting plate also includes:

[0028] The intermediate dispersion ribs are provided on the upper and lower end faces of the intermediate cutting plate, and are evenly distributed. The intermediate dispersion ribs include a first receiving part, a second receiving part and a third receiving part arranged sequentially from the side with a smaller cross-sectional area to the side with a larger cross-sectional area. The first receiving part and the third receiving part are straight and on the same straight line, and the second receiving part is corrugated.

[0029] The end connection portion has several hook-shaped end connection portions that are evenly distributed on the side with a larger cross-sectional area of ​​the middle cutting plate.

[0030] In the above technical solution, the side support wing further includes:

[0031] The leading edge inclined plate is inclined.

[0032] The leading edge connecting part has several equally spaced hook-shaped leading edge connecting parts formed on the side of the leading edge inclined plate that connects to the intermediate cutting plate. The leading edge connecting parts cooperate with the end connecting parts and are alternately distributed and are rotatably connected by a rotating rod.

[0033] The middle inclined plate connecting part is formed on the side of the front inclined plate part away from the front connecting part, and the middle inclined plate connecting part is inclined and the inclination angle is smaller than the inclination angle of the front inclined plate part.

[0034] The guide holes are formed on the middle inclined plate connection part, and are elliptical in shape and are evenly distributed.

[0035] The rear edge arc plate portion is provided on the side of the middle inclined plate connection portion away from the front edge inclined plate portion, and the side of the rear edge arc plate portion away from the middle inclined plate connection portion extends towards the middle of the two side support wings.

[0036] Side guide ribs are provided on the side support wing, and the side guide ribs extend from the front edge inclined plate portion of the side support wing to the middle inclined plate connecting portion; and the side guide ribs from the front edge inclined plate portion to the middle inclined plate connecting portion include a first connecting portion, a second connecting portion and a third connecting portion arranged sequentially, the first connecting portion and the third connecting portion are straight, the first connecting portion and the first receiving portion are alternately distributed, and the second connecting portion is corrugated.

[0037] In the above technical solution, the intermediate partition further includes:

[0038] The front connecting rib is fixedly connected to the side of the middle cutting plate with the larger cross-sectional area, and the width of the front connecting rib is smaller than the width of the middle cutting plate to which it is connected.

[0039] The rear stiffener plate is perpendicular to the side support wing, and the upper and lower ends of the rear stiffener plate pass through the side support wings on both sides and slide in cooperation with the side support wings, and a flow hole is formed in the middle of the rear stiffener plate.

[0040] External limiting blocks are respectively provided at the ends of the extended side support wings on both sides of the rear stiffener plate;

[0041] The front connecting rib and the middle cutting plate are integrally formed, the outer limiting block is welded and fixed to the rear rib plate, and the outer limiting block is sharp.

[0042] In the above technical solution, the intermediate support component further includes:

[0043] Welding pads are fixedly installed on the side support wings, and the end faces of the welding pads on the two side support wings are parallel to each other, and threaded holes are provided on the opposite end faces of the welding pads.

[0044] End limiting components are provided on the threaded holes of each welding pad, and the two end limiting components are symmetrically arranged.

[0045] An intermediate support assembly is provided between the two end limiting members;

[0046] The two ends of the intermediate support component extend into the end limiting members at their respective ends and are limited by a pin.

[0047] In the above technical solution, the intermediate support component further includes:

[0048] The intermediate support rod consists of two intermediate support rods arranged crosswise, each including an end connecting block, an insertion slot through the end connecting block, and a through rod at one end of the end connecting block. The two intermediate support rods are in sliding fit after being arranged crosswise. The ends of the end connecting blocks on the two intermediate support rods without the through rods are arranged opposite each other. The intermediate support rods are connected to the end limiting member through the through rod.

[0049] An intermediate limiting spring is provided between the end connecting blocks of the two intermediate support rods;

[0050] A side limiting spring is provided at the other end of the insertion rod of each intermediate receiving rod. One end of the side limiting spring abuts against the end limiting member and the other end abuts against the end connecting block.

[0051] The end connecting block is disc-shaped, with several fan-shaped insertion slots evenly arranged in the middle of the end connecting block and penetrating the end connecting block. Several fan-shaped through rods are arranged at one end of the end connecting block and can slide with the insertion slots, and are alternately distributed with the insertion slots. The ends of the two intermediate receiving rods with through rods are arranged opposite each other, and the through rod on one of the intermediate receiving rods passes through the insertion slot of the other intermediate receiving rod and extends to the other end of the intermediate receiving rod, so that the ends of the end connecting blocks on the two intermediate receiving rods without through rods are arranged opposite each other.

[0052] In the above technical solution, the end limiting component further includes:

[0053] The screw section mates with the threaded hole.

[0054] The limiting sleeve has an annular cross-section with an outer diameter larger than that of the screw and is located on the side of the screw away from the threaded hole. The inner diameter of the limiting sleeve is larger than that of the insertion groove. Several L-shaped slots are evenly distributed around the circumference on the limiting sleeve. The two sides of the slots do not penetrate the limiting sleeve. A protruding locking block is formed at the end of each insert rod and engages with the bottom of the slot. The outer wall of the locking block has an insertion rounded corner.

[0055] The external force-bearing part is provided at the end of the limiting sleeve with several protruding and evenly distributed external force-bearing parts;

[0056] An inner anti-reverse spring is provided inside the limiting sleeve, and the insert rod is inserted into the limiting sleeve and abuts against the inner anti-reverse spring;

[0057] The external force-bearing part is fan-shaped and is alternately distributed with the end of the limiting sleeve; and pin holes are provided on the side of the limiting sleeve with the external force-bearing part and on the insert rod. The pin holes are long grooves, and the pins pass through the pin holes to fix the insert rod into the limiting sleeve.

[0058] A control method for a mortar admixture mixing device applicable to the above technical solution, wherein the mixing device further includes an external control cabinet, the control cabinet is equipped with a control circuit, a controller and a frequency converter, and the mixing motor and the guide motor are both driven by the frequency converter after being programmed by the controller;

[0059] The controller is programmed with preset stirring speeds for the mixing motor, which are multi-stage speeds including an initial speed N1, an intermediate speed N2, and a holding speed N3, where N1 < N3 < N2. The controller is also programmed with preset stirring speeds for the guide motor, which are also multi-stage speeds including an initial speed n1, a continuous speed n2, and a final speed n3, where n1 < n3 < n2, and n1 > N1, n2 > N2, n3 > N3, and n1 = N1 × 1.10 ~ 1.20, n2 = N2 × 1.18 ~ 1.25, n3 = N3 × 1.08 ~ 1.15.

[0060] When the mixing device starts, the speed of the mixing motor increases from 0 to N1, and the speed of the guide motor increases from 0 to n1. The speed increases incrementally when switching from N1 to N2 and from N1 to n2, and decreases incrementally when switching from N2 to N3 and from N2 to n3. Before the mixing device stops, the speed of the mixing motor decreases from N3 to 0, and the speed of the guide motor decreases from n3 to 0. The unit of speed is r / s.

[0061] The beneficial effects of this invention are as follows:

[0062] 1. Its streamlined shape and pointed tip with a central cutting plate enable it to better cut fluids radially and break up agglomerates;

[0063] 2. The side support wings further enhance the mixing effect;

[0064] 3. The intermediate support component ensures good structural strength and stability for both side support wings. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the structure of the hybrid component in this invention;

[0066] Figure 2 This is a schematic diagram of the structure of the present invention;

[0067] Figure 3 This is a top view of the internal drainage hopper in this invention;

[0068] Figure 4 yes Figure 2 A magnified view of a section at point I;

[0069] Figure 5 This is a first-view structural schematic diagram of the hybrid blade assembly in this invention;

[0070] Figure 6 This is a schematic diagram of the hybrid blade assembly from a second perspective in this invention;

[0071] Figure 7 yes Figure 5Schematic diagram of the cross-section at point II;

[0072] Figure 8 Side view of the hybrid blade assembly in this invention;

[0073] Figure 9 This is a schematic diagram of the structure of the intermediate support component in this invention;

[0074] Figure 10 This is a cross-sectional schematic diagram of the intermediate support component in this invention;

[0075] Figure 11 This is a partial structural schematic diagram of the intermediate support component in this invention;

[0076] The markings in the diagram represent: 1-mixing tank, 2-mixing main shaft, 3-mixing bushing, 4-external drainage pipe, 5-internal drainage hopper, 6-guide pipe, 7-guide impeller, 8-guide motor, 9-intermediate cutting plate, 10-tip part, 11-intermediate dispersion rib, 11a-first receiving part, 11b-second receiving part, 11c-third receiving part, 12-leading edge inclined plate part, 13-leading edge connecting part, 14-middle inclined plate connecting part, 15-guide hole, 16-rear edge arc plate part, 17-side guide rib. 17a-First connecting part, 17b-Second connecting part, 17c-Third connecting part, 18-Front connecting rib, 19-Rear rib plate, 20-Outer limiting block, 21-Welding pad, 22-End limiting, 22a-Screw part, 22b-Limiting sleeve, 22c-Outer force-bearing part, 22d-Inner anti-reverse spring, 23-Pin, 24-Intermediate supporting rod, 24a-End connecting block, 24b-Insertion groove, 24c-Through rod, 24d-Card block, 25-Intermediate limiting spring, 26-Side limiting spring. Detailed Implementation

[0077] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0078] Example 1:

[0079] This embodiment provides a mortar admixture mixing device, including:

[0080] Mixing tank 1 is vertically arranged, with a feeding port at the top and a discharge port at the bottom.

[0081] A mixing spindle 2 extends from the bottom of the mixing tank 1 and is rotated and fixed, and several uniformly distributed mixing components are provided on the mixing spindle 2;

[0082] A mixing motor is installed at the bottom of the mixing tank 1, and the mixing main shaft 2 is driven to rotate by the mixing motor.

[0083] Two flow-guiding components are provided on the outer side wall of the mixing tank 1 with a spacing distribution.

[0084] The hybrid components include:

[0085] Mixing bushing 3 is fixedly sleeved on mixing spindle 2;

[0086] The hybrid blade assembly has several hybrid blade assemblies evenly distributed circumferentially along the outer edge of the hybrid bushing 3.

[0087] In this technical solution, the mixing tank 1 has an overall cylindrical structure with a cylindrical upper part and a conical lower part. The bottom of the mixing tank 1 is equipped with support feet. The feeding port is located in the middle of the top of the mixing tank 1, and the discharge port is located in the middle of the bottom of the mixing tank 1. The discharge port is equipped with a discharge valve for discharging the material. The set flow guiding component can drive the flow of liquid in the upper and lower layers inside the mixing tank 1, thereby improving the mixing effect. The mixing main shaft 2 is threaded, and the mixing sleeve 3 is fixed to the mixing main shaft 2 by the thread. At the same time, large-diameter nuts can be set at both ends of the mixing sleeve to prevent the mixing sleeve 3 from shifting.

[0088] Example 2:

[0089] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0090] Both drainage components consist of drainage tubes evenly distributed around the circumference, and the drainage tubes in the two drainage components are distributed alternately up and down.

[0091] The drainage fittings include:

[0092] An external drainage pipe 4 is located outside the mixing tank 1 and extends into the mixing tank 1. The external drainage pipe 4 in one drainage assembly connects the upper part and the middle part of the mixing tank 1, and the external drainage pipe 4 in the other drainage assembly connects the middle part and the lower part of the mixing tank 1.

[0093] An internal diversion hopper 5 is installed close to the inner wall of the mixing tank 1, and the bottom of the internal diversion hopper 5 is connected to the external diversion pipe 4.

[0094] A guide pipe 6 is provided at the connection between the external guide pipe 4 and the internal guide hopper 5. The guide pipe 6 is arc-shaped.

[0095] The flow guiding assembly includes a flow guiding impeller 7 disposed at the bottom of the outer flow guiding pipe 4, a flow guiding shaft located inside the outer flow guiding pipe 4, and a flow guiding motor 8 disposed outside the outer flow guiding pipe 4 or the flow guiding pipe 6 and driving the flow guiding shaft to rotate.

[0096] The cross-sectional area of ​​the external drainage pipe 4 decreases from top to bottom; the top view of the internal drainage hopper 5 is U-shaped, and the cross-sectional area decreases from top to bottom; and an inclined guide section is provided at the upper end of the internal drainage hopper, which slopes downward from the inner wall of the mixing tank 1 towards the middle of the mixing tank 1.

[0097] In this technical solution, the entire drainage pipe is supported by corrosion-resistant metal material. Two drainage components are provided, with one component's external drainage pipe 4 connecting the upper and middle parts of the mixing tank 1, and the other component's external drainage pipe 4 connecting the middle and lower parts of the mixing tank 1. This allows for the flow and mixing of the upper and middle layers of raw materials, as well as the middle and lower layers, within the mixing tank 1, thereby improving the mixing effect. The internal backflow hopper facilitates the entry of raw materials from the mixing tank 1 into the upper part of the external drainage pipe 4, while the guide pipe 6 reduces flow resistance, thus improving... High fluidity; the designed flow guiding components further enhance the flow of raw materials within the drainage pipe, thereby ensuring better flow performance; the cross-sectional area of ​​the external drainage pipe 4 decreases from top to bottom, thus increasing the flow rate during raw material flow; the top-view outer contour of the internal drainage hopper 5 is U-shaped, and the cross-sectional area decreases from top to bottom, allowing for good connection with the external drainage pipe 4, which has a decreasing cross-sectional area; the inclined guide section at the upper end of the internal drainage hopper slopes downward from the inner wall of the mixing tank 1 towards the middle of the mixing tank 1, increasing the liquid level height of the incoming raw materials, thereby further improving the material flow effect.

[0098] Example 3:

[0099] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0100] The hybrid blade assembly includes:

[0101] The intermediate cutting plate 9 is horizontally arranged and has a pointed portion 10 formed on one side. A connecting plate for connecting with the mixing bushing 3 is also formed on the intermediate cutting plate 9.

[0102] Side support wings: Two symmetrically arranged side support wings are provided at the upper and lower ends of the middle cutting plate 9 on the side away from the tip 10 and distributed in a V-shape.

[0103] Intermediate partitions are provided between the two side support wings, with several intermediate partitions evenly distributed.

[0104] The intermediate support assembly consists of several equally spaced intermediate support assemblies arranged between the two side support wings.

[0105] The side support wing is movably connected to the middle cutting plate 9, the middle partition plate is fixedly connected to the side of the middle cutting plate 9 away from the tip 10, and the middle partition plate passes through the side support wing.

[0106] In this technical solution, the intermediate cutting plate 9, the intermediate partition plate, and the side support wings are all made of corrosion-resistant metal materials. The intermediate cutting plate 9 is mainly used to connect the mixing blades with the mixing bushing 3. The intermediate cutting plate can achieve good mixing function during stirring and mixing. The side support wings set on both sides of the intermediate cutting plate can further play a role in mixing. At the same time, since the two side support wings are distributed in a V shape, they can better contact the agglomerated materials under high rotation speed of the mixing component and break up the blocky objects to a certain extent, thereby ensuring a good mixing effect. The intermediate partition plate and intermediate support can play a good elastic support effect between the two side support wings. When the rotation speed is large, the angle of the V-shape formed by the two side support wings becomes smaller, thereby opening and closing the side support wings.

[0107] Example 4:

[0108] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0109] The cross-section of the intermediate cutting plate 9 is streamlined, and the cross-sectional area increases from the direction of rotation of the mixing main shaft 2 to the opposite direction. The tip 10 is formed on the side of the intermediate cutting plate 9 with a smaller cross-sectional area.

[0110] The middle cutting plate 9 is also equipped with:

[0111] The intermediate dispersion ribs 11 are provided on the upper and lower end faces of the intermediate cutting plate 9, and are evenly distributed. The intermediate dispersion ribs 11 include a first receiving part 11a, a second receiving part 11b and a third receiving part 11c arranged sequentially from the side with a smaller cross-sectional area to the side with a larger cross-sectional area of ​​the intermediate cutting plate 9. The first receiving part 11a and the third receiving part 11c are straight and on the same straight line, and the second receiving part 11b is corrugated.

[0112] The end connection portion has several hook-shaped end connection portions that are evenly distributed on the side with a larger cross-sectional area of ​​the middle cutting plate 9.

[0113] In this technical solution, the streamlined, tip-shaped intermediate cutting plate 9 can better radially cut the fluid and break up agglomerates. By setting the cross-sectional area to increase in the opposite direction along the mixing direction, it can disperse agglomerates in the fluid to a certain extent during rotation and ensure the mixing effect. The intermediate dispersing ribs 11 can guide the flow, and the ends of the intermediate separating ribs can axially cut and break up agglomerates. At the same time, it increases the contact area between the material and the intermediate cutting plate 9 to ensure the mixing effect. The corrugated second receiving part 11b can better disperse lumps during rotation, and the end connection part can facilitate the installation and fixation of the side support wings.

[0114] Example 5:

[0115] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0116] The side support wings include:

[0117] The leading edge inclined plate portion 12 is inclined.

[0118] The leading edge connecting portion 13 has several equally spaced hook-shaped leading edge connecting portions 13 formed on the side of the leading edge inclined plate portion 12 that connects to the intermediate cutting plate 9. The leading edge connecting portions 13 cooperate with the end connecting portion and are alternately distributed and rotatably connected by a rotating rod.

[0119] The middle inclined plate connecting part 14 is formed on the side of the front inclined plate part 12 away from the front connecting part 13. The middle inclined plate connecting part 14 is inclined and the inclination angle is smaller than the inclination angle of the front inclined plate part 12.

[0120] The guide holes 15 are formed on the inclined plate connecting part 14, and are equidistantly distributed and elliptical in shape.

[0121] The rear edge arc plate portion 16 is provided on the side of the middle inclined plate connecting portion 14 away from the front edge inclined plate portion 12, and the rear edge arc plate portion 16 extends towards the middle of the two side support wings from the side away from the middle inclined plate connecting portion 14.

[0122] Side guide ribs 17 are provided on the side support wing, and the side guide ribs 17 extend from the front edge inclined plate portion 12 of the side support wing to the middle inclined plate connecting portion 14; and the side guide ribs 17 from the front edge inclined plate portion 12 to the middle inclined plate connecting portion 14 include a first connecting portion 17a, a second connecting portion 17b and a third connecting portion 17c arranged sequentially. The first connecting portion 17a and the third connecting portion 17c are straight, and the first connecting portion 17a and the first receiving portion 11a are alternately distributed, and the second connecting portion 17b is corrugated.

[0123] In this technical solution, the leading edge connecting part 13 is provided to cooperate with the end connecting part and is connected through a rotating rod, thereby ensuring a good connection between the side support wing and the middle cutting plate 9; the inclined leading edge plate part 12 can better contact the material during rotation, and the material is better mixed through the receiving of the middle inclined plate connecting part 14; the guide hole 15 can reduce the resistance of the side support wing during the mixing rotation, and the rear arc plate part can break up the lumps as they flow out of the guide hole 15; the end of the side guide rib 17 can further achieve the effect of axial cutting and chopping up the lumps, while increasing the contact area between the material and the side support wing to ensure the mixing effect; the corrugated second connecting part 17b can better break up the lumps during rotation; the first connecting part 17a is straight and alternately distributed with the first receiving part 11a, thereby further achieving the effect of mixing and guiding; at the same time, the guide hole 15 and the side guide rib 17 skip the position where they pass through the middle partition plate.

[0124] Example 6:

[0125] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0126] The intermediate partition includes:

[0127] The front connecting rib 18 is fixedly connected to the side of the middle cutting plate 9 with a larger cross-sectional area, and the width of the front connecting rib 18 is smaller than the width of the middle cutting plate 9 to which it is connected.

[0128] The rear stiffener portion 19 is perpendicular to the side support wing, and the upper and lower ends of the rear stiffener portion 19 pass through the side support wings on both sides and slide in cooperation with the side support wings, and a flow hole is formed in the middle of the rear stiffener portion 19.

[0129] Outer limiting blocks 20 are respectively provided at the ends of the extended side support wings on both sides of the rear stiffener plate portion 19;

[0130] The front connecting rib 18 is integrally formed with the middle cutting plate 9, the outer limiting block 20 is welded and fixed to the rear rib plate 19, and the outer limiting block 20 is sharp.

[0131] In this technical solution, the front connecting rib 18 is used to connect with the intermediate cutting plate 9, while the rear rib plate 19 is used to support and limit the side support wings, thereby preventing misalignment of the two side support wings; the sharp outer limiting block 20 can prevent the side support wings from detaching from the intermediate partition plate, and also has a certain axial cutting effect. The sliding fit between the rear rib plate and the side support wings prevents the intermediate partition plate from breaking when the two side support plates are opened and closed, thereby ensuring the structural strength and stability of the hybrid blade assembly.

[0132] Example 7:

[0133] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0134] The intermediate support components include:

[0135] Welding pad 21, a welding pad 21 is fixedly provided on the side support wing, and the end faces of the opposite ends of the welding pad 21 on the two side support wings are parallel to each other, and threaded holes are provided on the opposite end faces of the welding pad 21.

[0136] End limiters 22 are provided on the threaded holes of each welding pad 21, and the two end limiters 22 are symmetrically arranged.

[0137] An intermediate support assembly is provided between the two end limiters 22 pieces;

[0138] The two ends of the intermediate support component extend into the end limiters 22 at their respective ends and are limited by a pin 23.

[0139] In this technical solution, the welding pad 21 serves to connect with the side support wing in the intermediate support assembly; while the end connector is provided to facilitate the fixing of the intermediate support and the welding connection block, thereby ensuring the stability of the intermediate support installation and the strength of the structure.

[0140] Example 8:

[0141] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0142] The intermediate support components include:

[0143] The intermediate support rod 24 is arranged crosswise, and each includes an end connecting block 24a, an insertion slot 24b through the end connecting block 24a, and a through rod 24c disposed at one end of the end connecting block 24a. The two intermediate support rods 24 are in sliding fit after being crosswise. The ends of the end connecting blocks 24a on the two intermediate support rods 24 without the through rod 24c are arranged opposite each other. The intermediate support rod 24 is connected to the end limiting piece 22 through the through rod 24c.

[0144] An intermediate limiting spring 25 is provided between the end connecting blocks 24a of the two intermediate supporting rods 24;

[0145] Side limiting spring 26 is provided at the other end of the insertion rod 24c of each intermediate receiving rod 24. One end of the side limiting spring 26 abuts against the end limiting piece 22 and the other end abuts against the end connecting block 24a.

[0146] The end connecting block 24a is disc-shaped, and several fan-shaped insertion slots 24b are evenly arranged in the middle of the end connecting block 24a and pass through the end connecting block 24a. Several fan-shaped through rods 24c are arranged at one end of the end connecting block 24a and can slide with the insertion slots 24b and are alternately distributed with the insertion slots 24b. The ends of the two intermediate receiving rods 24 with through rods 24c are arranged opposite each other, and the through rod 24c on one of the intermediate receiving rods 24 passes through the insertion slot 24b of the other intermediate receiving rod 24 and extends to the other end of the intermediate receiving rod 24, so that the ends of the end connecting blocks 24a on the two intermediate receiving rods 24 without through rods 24c are arranged opposite each other.

[0147] In this technical solution, the intermediate support rod 24 serves both as support and as a telescopic mechanism. The two intermediate support rods 24 are staggered and slide together through the cooperation of the through rod 24c and the insertion slot 24b. An intermediate limiting ring is provided at the diameter of the end connecting block 24a of the two intermediate support rods 24, and a side limiting spring 26 is fitted onto the through rod 24c at the other end of the segment connecting block. The side limiting spring 26 rests between the segment connecting block and the end limiting piece 22, allowing the two staggered intermediate support rods 24 to achieve elastic compression and elastic tension. Elastic tension maintains good tension of the side support wings and prevents excessive deformation. Elastic compression ensures better closure of the two side support wings when they encounter resistance (i.e., the clamping of the two side support wings decreases), thereby further ensuring good structural strength and stability of the side support wings.

[0148] Example 9:

[0149] This embodiment provides a mortar admixture mixing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0150] The 22 end limiters include:

[0151] The screw part 22a mates with the threaded hole.

[0152] The limiting sleeve 22b has an annular cross-section and an outer diameter larger than that of the screw part 22a and is located on the side of the screw part 22a away from the threaded hole. The inner diameter of the limiting sleeve 22b is larger than that of the insertion groove 24b. Several L-shaped slots are evenly distributed around the circumference on the limiting sleeve 22b. The two sides of the slots do not penetrate the limiting sleeve 22b. At the end of each inserting rod 24c, a protruding locking block 24d is formed and engages with the bottom of the slot. The outer wall of the locking block 24d has an insertion rounded corner.

[0153] The external force-bearing part 22c is provided at the end of the limiting sleeve 22b with a plurality of protruding and evenly distributed external force-bearing parts 22c;

[0154] An inner anti-reverse spring 22d is provided inside the limiting sleeve 22b, and an insert rod 24c is inserted into the limiting sleeve 22b and abuts against the inner anti-reverse spring 22d.

[0155] The external force-bearing part 22c is fan-shaped and is alternately distributed with the end of the limiting sleeve 22b; and pin holes are provided on the side of the limiting sleeve 22b with the external force-bearing part 22c and on the insert rod 24c. The pin holes are long grooves, and the pin 23 fixes the insert rod 24c into the limiting sleeve 22b through the pin holes.

[0156] In this technical solution, the screw portion 22a on the end connecting block 24a can be easily fixed with the threaded hole; the limiting sleeve 22b is used to limit the insertion rod 24c of the intermediate supporting rod 24; the provided slot and the locking block 24d at the end of the insertion rod 24c can further limit the intermediate supporting rod 24; the external force-bearing portion 22c can facilitate the installation and disassembly of the end connecting block 24a; the internal anti-return spring 22d can resist the insertion rod 24c with elastic force in the limiting sleeve 22b, thereby preventing the locking block 24d from exiting the bottom of the slot; the provided pin 23 can prevent the insertion rod 24c from rotating after it is fixed, thereby better fixing the intermediate supporting rod 24.

[0157] Example 10:

[0158] A control method for a mortar admixture mixing device applicable to the above embodiments, wherein the mixing device further includes an external control cabinet, the control cabinet being equipped with a control circuit, a controller and a frequency converter, and the mixing motor and the current guiding motor 8 being driven by the frequency converter after being programmed by the controller;

[0159] The controller is programmed with preset stirring speeds for the mixing motor. The stirring speeds of the mixing motor are multi-stage, including an initial speed N1, an intermediate speed N2, and a holding speed N3, where N1 < N3 < N2. The controller is also programmed with preset stirring speeds for the guide motor 8. The stirring speeds of the guide motor 8 are multi-stage, including an initial speed n1, a continuous speed n2, and a final speed n3, where n1 < n3 < n2, and n1 > N1, n2 > N2, n3 > N3, and n1 = N1 × 1.10 ~ 1.20, n2 = N2 × 1.18 ~ 1.25, n3 = N3 × 1.08 ~ 1.15.

[0160] When the mixing device is started, the speed of the mixing motor increases from 0 to N1, and the speed of the guide motor 8 increases from 0 to n1. The speed increases when switching from N1 to N2 and from N1 to n2, and decreases when switching from N2 to N3 and from N2 to n3. Before the mixing device stops, the speed of the mixing motor decreases from N3 to 0, and the speed of the guide motor 8 decreases from n3 to 0. The unit of speed is r / s.

[0161] In this technical solution, since the diameter of the external drainage pipe 4 is smaller than the inner diameter of the mixing tank 1, the rotation speed of the guide motor 8 and the stirring speed of the mixing motor can better ensure the flow effect of different layers of the mixture inside the mixing tank 1, thereby improving the mixing effect. The stirring effect can be better guaranteed by setting multiple rotation speeds.

[0162] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A mortar admixture mixing device, characterized in that, include: The mixing tank (1) is vertically arranged, and the top of the mixing tank (1) is provided with a feeding port and the bottom of the mixing tank (1) is provided with a discharge port; A mixing spindle (2) extends from the bottom of the mixing tank (1) and is rotated and fixed, and a number of uniformly distributed mixing components are provided on the mixing spindle (2); A mixing motor is provided at the bottom of the mixing tank (1), and the mixing main shaft (2) is driven to rotate by the mixing motor; Two flow-guiding components are provided on the outside of the tank side wall of the mixing tank (1) with a spacing distribution; The hybrid component mentioned above includes: A mixing bushing (3) is fixedly sleeved on the mixing spindle (2); The hybrid blade assembly has a plurality of hybrid blade assemblies evenly distributed around the circumference on the outer edge of the hybrid bushing (3); The hybrid blade assembly includes: Intermediate cutting plate (9), wherein the intermediate cutting plate (9) is horizontally arranged and a tip (10) is formed on one side of the intermediate cutting plate (9). Side support wings: Two symmetrically arranged and V-shaped side support wings are provided at the upper and lower ends of the middle cutting plate (9) away from the tip (10); Intermediate partition plates are provided between the two side support wings, with several intermediate partition plates distributed at equal intervals. An intermediate support assembly is provided between the two side support wings, with several intermediate support assemblies distributed at equal intervals. The side support wing is movably connected to the intermediate cutting plate (9), the intermediate partition plate is fixedly connected to the side of the intermediate cutting plate (9) away from the tip (10), and the intermediate partition plate passes through the side support wing; The side support wing includes: The leading edge inclined plate portion (12) is inclined; The middle inclined plate connecting part (14) is formed on the side of the front inclined plate part (12) away from the front connecting part (13). The middle inclined plate connecting part (14) is inclined and the inclination angle is smaller than the inclination angle of the front inclined plate part (12). The guide holes (15) are formed on the inclined plate connecting part (14) with a plurality of equally spaced and elliptical guide holes (15). The rear edge arc plate portion (16) is provided on the side of the middle inclined plate connecting portion (14) away from the front edge inclined plate portion (12). The rear edge arc plate portion (16) extends towards the middle of the two side support wings from the side away from the middle inclined plate connecting portion (14).

2. The mortar admixture mixing device according to claim 1, characterized in that, Both drainage components consist of drainage tubes evenly distributed around the circumference, and the drainage tubes in the two drainage components are distributed alternately up and down. The drainage fittings mentioned above include: An external drainage pipe (4) is located outside the mixing tank (1) and extends into the mixing tank (1). The external drainage pipe (4) in one of the drainage components connects the upper part and the middle part of the mixing tank (1), and the external drainage pipe (4) in the other drainage component connects the middle part and the lower part of the mixing tank (1). An internal diversion hopper (5) is provided close to the inner wall of the mixing tank (1), and the bottom of the internal diversion hopper (5) is connected to the external diversion pipe (4). A guide pipe (6) is provided at the connection between the external guide pipe (4) and the internal guide bucket (5), and the guide pipe (6) is arc-shaped.

3. The mortar admixture mixing device according to claim 2, characterized in that, The intermediate cutting plate (9) has a streamlined cross-section, and the cross-sectional area increases from the direction of rotation of the mixing main shaft (2) to the opposite direction. The tip (10) is formed on the side with a smaller cross-sectional area of ​​the intermediate cutting plate (9).

4. The mortar admixture mixing device according to claim 1, characterized in that, The intermediate partition plate includes: The front connecting rib (18) is fixedly connected to the side of the middle cutting plate (9) with a larger cross-sectional area, and the width of the front connecting rib (18) is smaller than the position width of the middle cutting plate (9) to which it is connected. The rear stiffener plate (19) is perpendicular to the side support wing, and the upper and lower ends of the rear stiffener plate (19) pass through the side support wings on both sides and slide with the side support wings, and a flow hole is formed in the middle of the rear stiffener plate (19). The outer limiting block (20) is provided at the ends of the extended side support wings on both sides of the rear stiffener plate (19). The front connecting rib (18) and the middle cutting plate (9) are integrally formed, and the outer limiting block (20) is welded and fixed to the rear rib plate (19).

5. The mortar admixture mixing device according to claim 1, characterized in that, The intermediate support component includes: Welding pad (21), a welding pad (21) is fixedly provided on the side support wing, and the end faces of the opposite ends of the welding pad (21) on the two side support wings are parallel to each other, and threaded holes are provided on the opposite end faces of the welding pad (21). End limiting member (22): Each of the welding pads (21) is provided with an end limiting member (22) on a threaded hole, and the two end limiting members (22) are symmetrically arranged. An intermediate support assembly is provided between the two end limiters (22); The two ends of the intermediate support component extend into the end limit member (22) at their respective ends and are limited by a pin (23).

6. The mortar admixture mixing device according to claim 5, characterized in that, The intermediate support component includes: Intermediate support rod (24), two intermediate support rods (24) are arranged crosswise, and each includes an end connecting block (24a), an insertion slot (24b) through the end connecting block (24a) and a through rod (24c) provided at one end of the end connecting block (24a). The two intermediate support rods (24) are in sliding fit after being arranged crosswise. The end of the end connecting block (24a) on the two intermediate support rods (24) without the through rod (24c) is arranged opposite to each other. The intermediate support rod (24) is connected to the end limiting member (22) through the through rod (24c). An intermediate limiting spring (25) is provided between the end connecting blocks (24a) of the two intermediate supporting rods (24). A side limiting spring (26) is provided at the other end of the insertion rod (24c) of each intermediate receiving rod (24). One end of the side limiting spring (26) abuts against the end limiting member (22) and the other end abuts against the end connecting block (24a).

7. The mortar admixture mixing device according to claim 6, characterized in that, The end limiting member (22) includes: The screw part (22a) mates with the threaded hole; The limiting sleeve (22b) has an annular cross-section and an outer diameter larger than that of the screw part (22a). The inner diameter of the limiting sleeve (22b) is larger than that of the insertion groove (24b). Several L-shaped slots are evenly distributed around the circumference on the limiting sleeve (22b). The two sides of the slots do not penetrate the limiting sleeve (22b). At the end of each insert rod (24c), a protruding locking block (24d) is formed and engages with the bottom of the slot. The outer wall of the locking block (24d) has an insertion rounded corner. The external force-bearing part (22c) is provided at the end of the limiting sleeve (22b) with a plurality of protruding and evenly distributed external force-bearing parts (22c). An inner anti-reverse spring (22d) is provided inside the limiting sleeve (22b), and the inserting rod (24c) is inserted into the limiting sleeve (22b) and abuts against the inner anti-reverse spring (22d); The external force-bearing part (22c) is fan-shaped, and pin holes are provided on the side of the limiting sleeve (22b) with the external force-bearing part and on the insert rod (24c). The pin holes are long grooves. The pin (23) fixes the insert rod (24c) into the limiting sleeve (22b) through the pin holes.

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