Stirring equipment for preparing cold-mixed full-steel-slag asphalt mixture
By designing multiple sets of blade sets and a stirring shaft with rotation table opposite direction in the mixing equipment, the uneven mixing problem of cold-mixed all-steel slag asphalt mixture is solved, and more efficient mixing effect is achieved, and the uniformity and quality of the mixture is improved.
Patent Information
- Application Number
- CN202510711989.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-08-01
AI Technical Summary
When preparing cold-mixed all-steel slag asphalt mixture, the mixing effect is poor, resulting in local aggregation or stratification of the mixture, especially when treating high-viscosity modified steel slag powder and asphalt, it cannot be fully mixed.
Multiple sets of blade sets are arranged axially spaced along the agitating shaft. The rotation directions of the rotating table and the agitating shaft are different. The rotating rod at the bottom of the blade are connected to the rotating rod and rotate in a synchronous manner. Combined with the design of the longitudinal agitating shaft and the rotating table, the complexity of the motion of the mixture is increased and the accumulation of blind angles is prevented.
The uniformity and overall quality of the cold-mixed all-steel slag asphalt mixture are improved, ensuring that the modified steel slag powder, the first part of the mixture and the second part of the mixture are fully mixed, and the stirring effect is improved.
Smart Images
Figure CN120401318A_ABST
Abstract
Description
Technical Field
[0001] This invention patent relates to the technical field of asphalt mixtures. Specifically, it relates to a mixing equipment for preparing cold-mixed all-steel slag asphalt mixtures. Background Art
[0002] Cold-mixed all-steel slag asphalt mixture is a new type of environmentally friendly road construction material, which has the advantages of low cost, convenient construction, environmental friendliness, etc. Its main components include modified steel slag powder, primary mixture (such as asphalt, mineral powder, etc.) and secondary mixture (such as aggregate, etc.).
[0003] During the preparation process, these components need to be fully stirred and mixed to ensure the uniformity and performance stability of the mixture. However, traditional mixing equipment has deficiencies in the mixing effect and is difficult to meet the high-quality production requirements.
[0004] In the prior art, traditional mixing equipment usually uses a single mixing shaft and blades for mixing. Although it can achieve the basic mixing function, when dealing with cold-mixed all-steel slag asphalt mixtures, due to the large differences in physical properties (such as particle size, density, etc.) between the modified steel slag powder, primary mixture and secondary mixture, local aggregation or stratification phenomena are likely to occur during the mixing process, affecting the final performance of the mixture;
[0005] In addition, the blade structure of the existing mixing equipment is relatively simple, usually fixed blades, lacking local disturbance function, making it difficult for the mixture to be fully mixed during the mixing process. Especially when dealing with high-viscosity modified steel slag powder and asphalt, it is impossible to fully break up the aggregated particles in the mixture, resulting in an unsatisfactory mixing effect. Summary of the Invention
[0006] The purpose of the present invention is to provide a mixing equipment for preparing cold-mixed all-steel slag asphalt mixtures, aiming to solve the problem of poor mixing effect in the prior art when preparing cold-mixed all-steel slag asphalt mixtures.
[0007] The present invention is implemented as follows. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixtures includes a mixing drum for mixing the modified steel slag powder, primary mixture and secondary mixture to form cold-mixed all-steel slag asphalt mixtures; the primary mixture is formed by mixing modified steel slag powder, polydimethylsiloxane, fly ash, hydrogen peroxide and steel slag; the secondary mixture is formed by mixing emulsified asphalt, waterborne epoxy resin, waterborne curing agent and defoaming agent.
[0008] The mixing drum has a mixing chamber for accommodating cold-mixed fully steel slag asphalt mixture, and a mixing shaft arranged horizontally and rotatably in the mixing chamber; multiple sets of blade groups are provided on the mixing shaft, and the multiple sets of blade groups are arranged at intervals along the axial direction of the mixing shaft, and there is an axial interval between adjacent blade groups; each blade group includes multiple blades, and the multiple blades are arranged at intervals and surrounded along the circumferential direction of the mixing shaft.
[0009] The mixing drum is placed on a rotating table that rotates horizontally, and the rotating direction of the rotating table is different from that of the mixing shaft; a rotating rod is connected to the bottom of the blade. During the process that the rotating shaft drives multiple blade groups to rotate synchronously for mixing, the rotating table rotates synchronously and in a direction different from that of the mixing shaft, and the rotating rods on the blades rotate reciprocally synchronously under impact.
[0010] Further, the mixing shaft is longitudinally arranged in the mixing chamber.
[0011] Further, along the circumferential direction of the mixing shaft, the blades of adjacent blade groups are arranged in a staggered manner.
[0012] Further, an installation hole penetrating vertically is provided in the rotating table. The mixing drum is in a straight cylinder shape and is inserted into the installation hole and fixedly connected to the rotating table.
[0013] The upper part of the mixing drum is exposed above the rotating table, and the lower part of the mixing drum is exposed below the rotating table. A discharge port is provided at the lower part of the mixing drum, and a sealing cover plate for opening or closing the discharge port is provided on the mixing drum.
[0014] Further, two clamping plates are welded to the middle part of the mixing drum. The clamping plates are arranged in a circumferential direction around the mixing drum, and the two clamping plates are arranged at an interval in the vertical direction, and there is a clamping interval between the two clamping plates.
[0015] The rotating table has an annular plate, which is arranged around the outer circumference of the installation hole. The annular plate is placed in the clamping interval and clamped by the two clamping plates, so that the mixing drum and the rotating table are elastically fixed relative to each other.
[0016] Further, the clamping plate has a clamping end face facing the clamping interval, and an elastic layer is covered on the clamping end face. The elastic layers on the two clamping plates clamp the annular plate in opposite directions, so that the mixing drum and the rotating table are elastically fixed relative to each other.
[0017] Further, multiple screw rods are inserted into the rotating table. The multiple screw rods are along the outer circumference of the mixing drum. The screw rods pass through the two clamping plates, the two elastic layers and the annular plate, and there is an outer circumferential gap between the outer circumference of the screw rods and the clamping plates and the annular plate.
[0018] Furthermore, the elastic layer wraps around the outer circumference of the screw and is integrated with the screw.
[0019] Furthermore, a curved rail groove is provided at the bottom of the blade, and a spherical head is provided at the top of the rotating rod, and the spherical head is movably placed in the rail groove. When the rotating shaft drives multiple blade groups to rotate and stir synchronously, the rotating rod moves along the rail groove, and the rotating rod is impacted and rotates back and forth synchronously.
[0020] Furthermore, a plurality of extension pieces extend outward from the outer circumference of the rotating rod, and the plurality of extension pieces are arranged around the circumference of the rotating rod at intervals. The extension pieces are arranged to extend along the axial direction of the rotating rod, and the plurality of extension pieces are arranged to extend in a staggered manner along the axial direction of the rotating rod.
[0021] Compared with the prior art, the mixing equipment for preparing cold-mix all-steel slag asphalt mixture provided by the present invention places the mixing drum on a horizontally rotating turntable, and the rotation direction of the turntable is different from the rotation direction of the mixing shaft. This allows the mixture to be subjected to multi-directional movement in the mixing chamber, effectively reducing the accumulation of materials in dead corners in the mixing chamber, thereby ensuring that the modified steel slag powder, the first mixture, and the second mixture can be mixed together more evenly.
[0022] In addition, a rotating rod is connected to the bottom of the blade on the stirring shaft. The rotating rod is impacted and rotates back and forth synchronously during the stirring process. This increases the movement complexity of the mixture, helps to break up the local aggregation of materials, promotes the uniform mixing of the mixture, and further improves the stirring effect, thereby improving the overall quality of the cold-mixed all-steel slag asphalt mixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a cross-sectional schematic diagram of a rubber mixing drum of a mixing equipment for preparing a cold-mix all-steel slag asphalt mixture provided by the present invention;
[0024] Figure 2 It is a cross-sectional schematic diagram of the clamping plate and the screw provided by the present invention;
[0025] Figure 3 is a schematic cross-sectional view of the rotating rod provided by the present invention;
[0026] In the figure: a mixing drum 100, a mixing chamber 101, a mixing shaft 102, blades 103, a rotating rod 104, a spherical head 105, and an extension piece 106;
[0027] Clamping plate 200 , annular plate 201 , elastic layer 202 , screw 203 , peripheral gap 204 . DETAILED DESCRIPTION
[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0029] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.
[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0031] Refer to Figures 1-3 As shown, it is a preferred embodiment provided by the present invention.
[0032] A mixing device for preparing cold-mixed all-steel slag asphalt mixture, including a mixing drum 100 for mixing modified steel slag powder, first portion mixture and second portion mixture to form cold-mixed all-steel slag asphalt mixture; the first portion mixture is formed by mixing modified steel slag powder, polydimethylsiloxane, fly ash, hydrogen peroxide and steel slag, and the second portion mixture is formed by mixing emulsified asphalt, waterborne epoxy resin, waterborne curing agent and defoaming agent;
[0033] The mixing drum 100 has a mixing chamber 101 for accommodating the cold-mixed all-steel slag asphalt mixture, and a mixing shaft 102 is horizontally rotatably arranged in the mixing chamber 101; multiple groups of blades 103 are provided on the mixing shaft 102, and multiple groups of blades 103 are arranged at intervals along the axial direction of the mixing shaft 102, and there is an axial interval between adjacent groups of blades 103; each group of blades 103 includes a plurality of blades 103, and the plurality of blades 103 are arranged at intervals and surround along the circumferential direction of the mixing shaft 102;
[0034] The mixing drum 100 is placed on a horizontally rotating turntable, and the rotating direction of the turntable is different from the rotating direction of the mixing shaft 102; the bottom of the blade 103 is connected with a rotating rod 104. During the process that the rotating shaft drives multiple groups of blades 103 to rotate synchronously for mixing, the turntable rotates synchronously and in a direction different from the rotating direction of the mixing shaft 102, and the rotating rod 104 on the blade 103 rotates reciprocally synchronously under impact.
[0035] The mixing equipment provided above for preparing cold-mixed all-steel slag asphalt mixture places the mixing drum 100 on a horizontally rotating turntable, and the rotation direction of the turntable is different from that of the mixing shaft 102, so that the mixture is subjected to multi-directional movement in the mixing chamber 101, effectively reducing the accumulation of materials in the dead corner area of the mixing chamber 101, thereby ensuring that the modified steel slag powder, the first batch of mixture and the second batch of mixture can be more evenly mixed together;
[0036] In addition, a rotating rod 104 is connected to the bottom of the blade 103 on the mixing shaft 102, and the rotating rod 104 rotates reciprocally synchronously under impact during the mixing process, which increases the movement complexity of the mixture, helps to break the local aggregation of materials, promotes the uniform mixing of the mixture, further improves the mixing effect, and thus improves the overall quality of the cold-mixed all-steel slag asphalt mixture.
[0037] In this embodiment, the mixing shaft 102 is longitudinally arranged in the mixing chamber 101; compared with the mixing shaft 102 arranged horizontally, the longitudinal arrangement can make more effective use of the space of the mixing chamber 101, ensure that the mixture can be fully mixed in the vertical direction, especially when dealing with materials of different particle sizes, it can better prevent the occurrence of layering phenomenon of materials during the mixing process.
[0038] In this embodiment, along the circumferential direction of the mixing shaft 102, the blades 103 of adjacent blade groups 103 are arranged in a staggered manner.
[0039] In this way, it can better promote the mixing between different materials, especially when dealing with high-viscosity modified steel slag powder and asphalt, it can effectively prevent the occurrence of local accumulation of materials during the mixing process, further improve the uniformity of the mixture, and thus improve the mixing effect.
[0040] In this embodiment, the turntable is provided with an installation hole arranged vertically through, the mixing drum 100 is in a straight cylinder shape, the mixing drum 100 is inserted into the installation hole and fixedly connected to the turntable;
[0041] The upper part of the mixing drum 100 is exposed above the turntable, the lower part of the mixing drum 100 is exposed below the turntable, the lower part of the mixing drum 100 is provided with a discharge port, and the mixing drum 100 is provided with a cover plate for opening or closing the discharge port.
[0042] In this way, it not only improves the stability and operation convenience of the mixing equipment, but also can effectively prevent the mixture from leaking from the discharge port during the mixing process, ensure the smooth progress of the mixing process, and the fixed connection between the mixing drum 100 and the turntable can ensure the coordinated movement of the two during the mixing process, thereby improving the mixing effect.
[0043] In this embodiment, two clamping plates 200 are welded to the middle of the mixing drum 100. The clamping plates 200 are arranged around the circumference of the mixing drum 100. The two clamping plates 200 are arranged at intervals in the up and down direction, and there is a clamping interval between the two clamping plates 200.
[0044] The rotating table has an annular plate 201. The annular plate 201 is arranged around the outer circumference of the mounting hole. The annular plate 201 is placed in the clamping interval and is clamped by the two clamping plates 200, so that the mixing drum 100 and the rotating table are elastically fixed relative to each other.
[0045] In this way, the stable connection between the mixing drum 100 and the rotating table can be ensured. At the same time, through the elastic fixing method, the vibration and impact force generated during the mixing process can be absorbed to a certain extent, which not only improves the stability and durability of the mixing equipment, but also can effectively reduce the uneven mixing of materials caused by vibration and impact force, thereby improving the mixing effect.
[0046] In this embodiment, the clamping plate 200 has a clamping end face facing the clamping interval. An elastic layer 202 is covered on the clamping end face. The elastic layers 202 on the two clamping plates 200 clamp the annular plate 201 in opposite directions, so that the mixing drum 100 and the rotating table are elastically fixed relative to each other.
[0047] Through the setting of the elastic layer 202, the buffering performance of the clamping structure can be further improved, the vibration and impact force generated during the mixing process can be effectively absorbed, and at the same time, the structures of the mixing drum 100 and the rotating table are protected from damage, ensuring the stable connection between the two.
[0048] In this embodiment, a plurality of screw rods 203 are arranged through the rotating table. The plurality of screw rods 203 are along the outer circumference of the mixing drum 100. The screw rods 203 pass through the two clamping plates 200, the two elastic layers 202 and the annular plate 201. There is an outer peripheral gap 204 between the outer periphery of the screw rod 203 and the clamping plate 200 and the annular plate 201.
[0049] By setting the screw rods 203, the connection strength between the mixing drum 100 and the rotating table can be further enhanced. At the same time, through the design of the outer peripheral gap 204, it can be ensured that there is a certain activity space between the mixing drum 100 and the rotating table during the mixing process, so as to better adapt to various forces generated during the mixing process.
[0050] In this embodiment, the elastic layer 202 wraps the outer periphery of the screw rod 203 and is integrated with the screw rod 203.
[0051] In this way, the elastic layer 202 can better play a buffering role, effectively absorb the vibration and impact force generated during the mixing process. At the same time, through the combination with the screw rod 203, the overall stability of the clamping structure can be further improved.
[0052] In this embodiment, a curved rail groove is provided at the bottom of the blade 103, and a spherical head 105 is provided at the top of the rotating rod 104. The spherical head 105 is movably placed in the rail groove. During the process of the rotating shaft driving a plurality of blade groups 103 to rotate synchronously for stirring, the rotating rod 104 moves along the rail groove, and the rotating rod 104 rotates reciprocally synchronously under impact.
[0053] Utilizing this reciprocating rotation can provide additional local disturbance to the mixture, further increasing the motion complexity of the mixture, and can better break the local aggregation of the material, promoting the uniform mixing of the mixture, thereby improving the stirring effect.
[0054] In this embodiment, a plurality of extension pieces 106 extend outward from the outer periphery of the rotating rod 104. The plurality of extension pieces 106 are arranged at intervals around the circumference of the rotating rod 104. The extension pieces 106 extend along the axial direction of the rotating rod 104. Along the axial direction of the rotating rod 104, the plurality of extension pieces 106 are arranged to extend in a staggered manner.
[0055] Through the arrangement of the extension pieces 106, the surface area of the rotating rod 104 can be further increased, thereby providing more contact points for the mixture during the stirring process. By using the staggered arrangement of the extension pieces 106, the rotating rod 104 can generate a more complex motion trajectory during the stirring process, thereby improving the stirring effect.
[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A mixing equipment for preparing cold-mixed all-steel slag asphalt mixture, characterized in that, It includes a mixing drum for mixing modified steel slag powder, a first portion of mixture, and a second portion of mixture to form a cold-mixed all-steel slag asphalt mixture; the first portion of mixture is formed by mixing modified steel slag powder, polydimethylsiloxane, fly ash, hydrogen peroxide, and steel slag, and the second portion of mixture is formed by mixing emulsified asphalt, waterborne epoxy resin, waterborne curing agent, and defoaming agent. The mixing drum has a mixing chamber for accommodating the cold-mixed all-steel slag asphalt mixture, and a mixing shaft horizontally rotatably arranged in the mixing chamber; multiple sets of blade groups are provided on the mixing shaft, and the multiple sets of blade groups are arranged at intervals along the axial direction of the mixing shaft, and there is an axial interval between adjacent blade groups; each blade group includes multiple blades, and the multiple blades are arranged at intervals and surrounded along the circumferential direction of the mixing shaft. The mixing drum is placed on a horizontally rotating turntable, and the rotating direction of the turntable is different from that of the mixing shaft; a rotating rod is connected to the bottom of the blade, and during the process that the rotating shaft drives the multiple blade groups to rotate synchronously for mixing, the turntable rotates synchronously and in a direction different from that of the mixing shaft, and the rotating rod on the blade rotates synchronously and reciprocally under impact.
2. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to claim 1, wherein, The mixing shaft is longitudinally arranged in the mixing chamber.
3. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to claim 1, characterized in that, Along the circumferential direction of the mixing shaft, the blades of adjacent blade groups are arranged in a staggered manner.
4. The mixing equipment for preparing cold-mixed fully steel slag asphalt mixture according to claim 1, characterized in that, There is an installation hole vertically penetrating through the turntable, the mixing drum is in a straight cylinder shape, and the mixing drum is inserted into the installation hole and fixedly connected to the turntable. The upper part of the mixing drum is exposed above the turntable, the lower part of the mixing drum is exposed below the turntable, a discharge port is provided at the lower part of the mixing drum, and a cover plate for opening or closing the discharge port is provided on the mixing drum.
5. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to any one of claims 1-4, characterized in that, Two clamping plates are welded to the middle part of the mixing drum, the clamping plates are arranged circumferentially around the mixing drum, the two clamping plates are arranged at an interval in the up-down direction, and there is a clamping interval between the two clamping plates. The turntable has an annular plate, the annular plate is arranged circumferentially around the outer periphery of the installation hole, the annular plate is placed in the clamping interval and clamped by the two clamping plates, so that the mixing drum and the turntable are elastically fixed relative to each other.
6. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to claim 5, characterized in that, The clamping plate has a clamping end face facing the clamping interval, and an elastic layer is covered on the clamping end face, and the elastic layers on the two clamping plates clamp the annular plate in opposite directions, so that the mixing drum and the turntable are elastically fixed relative to each other.
7. The mixing equipment for preparing cold-mixed fully steel slag asphalt mixture according to claim 6, characterized in that, Multiple screw rods are inserted into the turntable, the multiple screw rods are along the outer periphery of the mixing drum, the screw rods pass through the two clamping plates, the two elastic layers, and the annular plate, and there is an outer peripheral gap between the outer periphery of the screw rods and the clamping plates and the annular plate.
8. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to claim 7, characterized in that, The elastic layer wraps the outer periphery of the screw rod and is integrated with the screw rod.
9. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to any one of claims 1-4, characterized in that, A curved rail groove is provided at the bottom of the blade, a spherical head is provided at the top of the rotating rod, the spherical head is movably placed in the rail groove, and during the process that the rotating shaft drives the multiple blade groups to rotate synchronously for mixing, the rotating rod moves along the rail groove, and the rotating rod rotates synchronously and reciprocally under impact.
10. The mixing equipment for preparing cold-mixed all-steel slag asphalt mixture according to any one of claims 1-4, characterized in that, A plurality of extension pieces extend outward from the outer periphery of the rotating rod, and the plurality of extension pieces are arranged at intervals around the circumference of the rotating rod. The extension pieces extend along the axial direction of the rotating rod, and along the axial direction of the rotating rod, the plurality of extension pieces are arranged with staggered extensions.