Blending device for preparing high-ductility and high-elasticity asphalt modifier for ultrathin overlay

Abstract

The utility model discloses a blending device for preparing a high-ductility and high-elasticity asphalt modifier for an ultrathin overlay, which comprises a blending unit which comprises a reaction kettle, a supporting part for supporting the reaction kettle, a batching unit arranged at the top of the reaction kettle, and a heating and stirring unit arranged in the reaction kettle, the batching unit is used for feeding asphalt modifier raw materials into the reaction kettle according to a certain proportion, the heating and stirring unit comprises a stirring part and a heating part, the stirring part is used for mixing the raw materials, and the heating part is used for heating the raw materials. According to the utility model, raw materials of the asphalt modifier can be put into the reaction kettle according to a certain proportion through the batching unit, the raw materials can be heated and stirred by utilizing the heating and stirring unit, and the blended asphalt modifier liquid is extruded by the extrusion part and is quickly filtered by the filtering part; the overall blending efficiency of the asphalt modifier is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to a mixing device for preparing a high-ductility and high-elasticity asphalt modifier for ultra-thin coatings. Background Technology

[0002] Modified asphalt ultrathin overlay is mainly used for preventive maintenance and corrective maintenance of minor defects on high-grade asphalt or cement pavements. It uses high-ductility and high-elasticity asphalt as binder, and the thickness is generally between 0.5 and 2.5 cm. It has advantages such as ultrathin surface layer, noise reduction, and super strong adhesion. It can be tightly bonded to the original pavement, push away defects, and has great practical value for energy conservation and consumption reduction.

[0003] In the preparation of asphalt modifiers, raw materials such as polymers, ductile agents, tackifying resins, and stabilizers need to be added to the mixing equipment in precise proportions. After thorough mixing, the prepared modifier exhibits high viscosity. In the discharge, filtration, and purification process, due to the high viscosity and poor flowability of the liquid modifier, it is difficult to achieve rapid filtration by gravity alone, resulting in low filtration efficiency and greatly reducing the overall efficiency of the modifier preparation. Therefore, a mixing device for preparing high-ductility and high-elasticity asphalt modifiers for ultra-thin overlays is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned preparation device for ultra-thin overlay high-ductility and high-elasticity asphalt modifier, we propose this utility model.

[0006] Therefore, the purpose of this utility model is to provide a mixing device for preparing high-ductility and high-elasticity asphalt modifiers for ultra-thin overlays. It is suitable for solving the problem that in the process of preparing asphalt modifiers, the modifiers prepared exhibit high viscosity characteristics, and in the discharge, filtration and purification stage, it is difficult to achieve rapid filtration by gravity alone, which reduces the overall mixing efficiency of the modifiers.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mixing device for preparing a high-ductility and high-elasticity asphalt modifier for ultra-thin overlays, comprising:

[0008] A mixing unit, comprising a reaction vessel and a support for supporting the reaction vessel;

[0009] The reactor includes a batching unit located at the top of the reactor and a heating and stirring unit located inside the reactor. The batching unit is used to add asphalt modifier raw materials into the reactor in a certain proportion. The heating and stirring unit includes a stirring section and a heating section. The stirring section is used to mix the raw materials, and the heating section is used to heat the raw materials.

[0010] An extrusion filtration unit is installed at the bottom of the reactor. The extrusion filtration unit includes an extrusion section and a filtration section. The extrusion section is used to extrude asphalt modifier liquid, and the filtration section is used to filter asphalt modifier liquid.

[0011] As a preferred embodiment of the mixing device for preparing ultra-thin coating high-ductility and high-elasticity asphalt modifier according to the present invention, the support part includes a support ring fixedly sleeved on the outer wall of the reactor, and the side wall of the support ring is fixedly connected with a plurality of evenly distributed support legs.

[0012] As a preferred embodiment of the mixing device for preparing ultra-thin coating high-elasticity asphalt modifier according to the present invention, the batching unit includes a feed barrel fixedly connected to the top of the reaction vessel, and multiple feeding pipes are fixedly connected to the side wall of the feed barrel, and a metering pump is sleeved on the wall of each feeding pipe.

[0013] As a preferred embodiment of the mixing device for preparing ultra-thin overlay high-ductility and high-elasticity asphalt modifier described in this utility model, the stirring part includes a servo motor fixedly installed on the top of the feeding barrel. The output end of the servo motor rotates through the feeding barrel and is fixedly connected to a gate-shaped plate. Multiple stirring blades are fixedly connected to both vertical ends of the gate-shaped plate.

[0014] As a preferred embodiment of the mixing device for preparing ultra-thin overlay high-ductility and high-elasticity asphalt modifier described in this utility model, the plurality of stirring blades on the gate-shaped plate are all inclined, and the inclination angle of each stirring blade is the same.

[0015] As a preferred embodiment of the mixing device for preparing ultra-thin coating high-ductility and high-elasticity asphalt modifier according to the present invention, the heating part includes a heat-conducting cover fixedly connected to the bottom of the inner cavity of the reaction vessel, the top of the heat-conducting cover is spherically protruding, and an electric heater is fixedly connected to the bottom of the inner cavity of the heat-conducting cover.

[0016] As a preferred embodiment of the mixing device for preparing ultra-thin coating high-elasticity asphalt modifier according to the present invention, the extrusion section includes two discharge pipes fixedly connected to the bottom of the reactor. The walls of the two discharge pipes are fitted with electrically controlled valves. The bottom ends of the two discharge pipes are fixedly connected to a rectangular cover. An electric push rod is fixedly connected to one side of the rectangular cover. The output end of the electric push rod is sealed and slides through the rectangular cover and is fixedly connected to a piston push plate. Two discharge pipes are fixedly connected to one side of the rectangular cover.

[0017] As a preferred embodiment of the mixing device for preparing ultra-thin cover high-elasticity asphalt modifier according to the present invention, the filter part includes a filter plate fixed to one side of a rectangular cover by bolts, one end of the filter plate sliding through into the rectangular cover, and a handle fixedly connected to one side of the filter plate.

[0018] The beneficial effects of this utility model are as follows: the raw materials of asphalt modifier can be put into the reaction vessel in a certain proportion through the batching unit, and the raw materials can be heated and stirred by the heating and stirring unit to react and mix the raw materials together. The prepared asphalt modifier liquid is squeezed by the extrusion unit and then quickly filtered by the filtration unit, thereby improving the overall preparation efficiency of asphalt modifier. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the mixing device for preparing the ultra-thin coating high-ductility and high-elasticity asphalt modifier proposed in this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the reaction vessel and feed tank proposed in this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the heat-conducting cover proposed in this utility model;

[0023] Figure 4 This is a schematic diagram showing the cross-section of the rectangular cover and the disassembly of the filter plate proposed in this utility model. Attached image description:

[0025] 100. Mixing unit; 101. Reactor; 102. Support section; 102a. Support ring; 102b. Support leg;

[0026] 200. Batching unit; 201. Feed hopper; 202. Feeding pipe; 203. Metering pump;

[0027] 300. Heating and stirring unit; 301. Stirring section; 301a. Servo motor; 301b. Gate-shaped plate; 301c. Stirring blade; 302. Heating section; 302a. Heat conducting cover; 302b. Electric heater;

[0028] 400, Extrusion Filtering Unit; 401, Extrusion Section; 401a, Discharge Pipe; 401b, Rectangular Cover; 401c, Electric Push Rod; 401d, Piston Push Plate; 401e, Discharge Pipe; 402, Filtering Section; 402a, Filter Plate; 402b, Handle. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1

[0034] Reference Figures 1-4 The first embodiment of this utility model provides a mixing device for preparing a high-ductility and high-elasticity asphalt modifier for ultra-thin overlays. The mixed asphalt modifier liquid can be squeezed and filtered quickly to improve the overall mixing efficiency of the asphalt modifier. It includes: a mixing unit 100, a batching unit 200, a heating and stirring unit 300, and a squeezing and filtering unit 400.

[0035] The mixing unit 100 includes a reaction vessel 101 and a support part 102 for supporting the reaction vessel 101.

[0036] A batching unit 200 is installed at the top of the reactor 101, and a heating and stirring unit 300 is installed inside the reactor 101. The batching unit 200 is used to add asphalt modifier raw materials into the reactor 101 in a certain proportion. The heating and stirring unit 300 includes a stirring part 301 and a heating part 302. The stirring part 301 is used to mix the raw materials, and the heating part 302 is used to heat the raw materials.

[0037] The extrusion filtration unit 400 is installed at the bottom of the reactor 101. The extrusion filtration unit 400 includes an extrusion section 401 and a filtration section 402. The extrusion section 401 is used to extrude asphalt modifier liquid, and the filtration section 402 is used to filter asphalt modifier liquid.

[0038] The reaction vessel 101 is used to prepare asphalt modifier, and the support part 102 is used to support the reaction vessel 101 to improve its stability. The raw materials of asphalt modifier can be added into the reaction vessel 101 in a certain proportion through the batching unit 200 to complete the initial preparation according to the proportion. The stirring part 301 and the heating part 302 can stir and heat the raw materials in the reaction vessel 101 to make the various raw materials react and mix with each other to form asphalt modifier liquid. After the reaction and mixing are completed, the asphalt modifier liquid is squeezed by the extrusion part 401, so that the asphalt modifier is quickly filtered by the filtration part 402 under pressure to complete the purification process efficiently, thereby improving the overall preparation time of asphalt modifier.

[0039] Example 2

[0040] Reference Figure 1 This is the second embodiment of the present invention. Unlike the previous embodiment, the support part 102 includes a support ring 102a that is fixedly sleeved on the outer wall of the reactor 101. The support ring 102a is close to the bottom of the reactor 101, so that its center of gravity is lower. A plurality of evenly distributed support legs 102b are fixedly connected to the side wall of the support ring 102a.

[0041] Multiple support legs 102b are arranged in a ring on the support ring 102a and are used to support the reactor 101 to ensure that the reactor 101 can maintain a stable posture during the stirring process of the asphalt modifier.

[0042] In addition, the batching unit 200 includes a feed tank 201 fixedly connected to the top of the reactor 101. The side wall of the feed tank 201 is fixedly connected to multiple feeding pipes 202. Each feeding pipe 202 is fitted with a metering pump 203 on its wall. The metering pump 203 can be used to automatically control the amount of raw materials conveyed in the feeding pipe 202.

[0043] The top of each feeding pipe 202 can be connected to the raw material conveying pipe of the asphalt modifier through a joint or flange, so that different raw materials enter the feeding pipe 202 at different positions. The metering pump 203 is a kind of pump that can meet the needs of various strict processes. The flow rate can be steplessly adjusted within the range of 0% to 100% to automatically feed the appropriate amount of raw material into the feeding tank 201 according to the mixing ratio. The raw material in the feeding tank 201 falls into the reaction vessel 101 for subsequent stirring and heating processes.

[0044] Example 3

[0045] Reference Figure 2 and Figure 3 This is the third embodiment of the present invention. Unlike the previous embodiment, the stirring part 301 includes a servo motor 301a fixedly installed on the top of the feed barrel 201. The output end of the servo motor 301a rotates through the feed barrel 201 and is fixedly connected to a gate-shaped plate 301b. Both vertical ends of the gate-shaped plate 301b are fixedly connected to multiple stirring blades 301c.

[0046] Servo motor 301a is used to drive the gate plate 301b to rotate, so as to use the stirring blades 301c on the gate plate 301b to stir the raw materials in the reactor 101, thereby promoting the reaction and mixing of various raw materials.

[0047] Among them, the multiple stirring blades 301c on the gate-shaped plate 301b are all inclined, and the inclination angle of each stirring blade 301c is the same.

[0048] When the gantry plate 301b rotates, the stirring blade 301c at one end, due to its tilted posture, generates an upward component force through contact with the asphalt modifier, thereby lifting the material from bottom to top. Meanwhile, the stirring blade 301c at the other end, in a symmetrical tilted manner, applies a downward force to the asphalt modifier, forming a downward material push. By using differentiated stirring methods, the mixing effect of the asphalt modifier is enhanced, and the mixing uniformity and mixing efficiency are improved.

[0049] In addition, the heating unit 302 includes a heat-conducting cover 302a fixedly connected to the bottom of the inner cavity of the reactor 101. The top of the heat-conducting cover 302a is spherically protruding to prevent raw materials from remaining on the heat-conducting cover 302a. An electric heater 302b is fixedly connected to the bottom of the inner cavity of the heat-conducting cover 302a.

[0050] The heat-conducting cover 302a is made of a metal material with thermal conductivity, such as stainless steel. The electric heater 302b has a resistance wire inside. The electric heater 302b generates heat by heating the resistance wire with electricity. This heat is transferred to the heat-conducting cover 302a, thereby heating the raw materials in the reactor 101 to promote the melting of the raw materials and the reaction.

[0051] Example 4

[0052] Reference Figure 1 and Figure 2 as well as Figure 4 This is the fourth embodiment of the present invention. Unlike the previous embodiment, the extrusion section 401 includes two discharge pipes 401a fixedly connected to the bottom of the reactor 101. The walls of the two discharge pipes 401a are fitted with electrically controlled valves. The bottom ends of the two discharge pipes 401a are fixedly connected to a rectangular cover 401b. An electric push rod 401c is fixedly connected to one side of the rectangular cover 401b. The output end of the electric push rod 401c is sealed and slides through the rectangular cover 401b and is fixedly connected to a piston push plate 401d. Two discharge pipes 401e are fixedly connected to one side of the rectangular cover 401b.

[0053] The inner diameter of the discharge pipe 401a is relatively large. When the electric control valve is opened, the mixed asphalt modifier liquid is quickly discharged into the rectangular cover 401b through the discharge pipe 401a. The volume of the rectangular cover 401b is larger than the volume of the reactor 101. After the asphalt modifier liquid in the reactor 101 is emptied, the electric control valve is closed. Then, the electric push rod 401c pushes the piston push plate 401d to move towards the discharge pipe 401e. The piston push plate 401d pushes the asphalt modifier liquid to flow, allowing it to quickly pass through the filter section 402 and complete the filtration. The filtered asphalt modifier liquid is discharged through the two discharge pipes 401e to quickly complete the purification process.

[0054] The filter section 402 includes a filter plate 402a that is fixed to one side of a rectangular cover 401b by bolts. One end of the filter plate 402a slides through into the rectangular cover 401b. The connection between the filter plate 402a and the rectangular cover 401b is sealed by a gasket. A handle 402b is fixedly connected to one side of the filter plate 402a.

[0055] The filter plate 402a is located near the discharge pipe 401e. The asphalt modifier liquid put into the rectangular cover 401b is located between the piston push plate 401d and the filter plate 402a. When the piston push plate 401d moves towards the discharge pipe 401e, the asphalt modifier liquid is forced to pass through the filter holes of the filter plate 402a to complete the filtration. After the asphalt modifier liquid in the rectangular cover 401b has been filtered, the bolts fixing the filter plate 402a are removed, and the filter plate 402a is pulled out using the handle 402b to clean the filter plate 402a. After cleaning, the filter plate 402a is re-fixed in the rectangular cover 401b to continue the filtration process.

[0056] During use, each feeding pipe 202 is connected to a different raw material conveying pipe, allowing different raw materials to be input into the feeding pipe 202 at different positions. The metering pump 203 automatically adjusts the conveying amount of the feeding pipe 202 according to the mixing ratio to feed the appropriate amount of raw materials into the reactor 101. Then, the servo motor 301a drives the gate plate 301b to rotate, and the electric heater 302b heats the heat conduction cover 302a to promote the melting and reaction of the raw materials. When the gate plate 301b rotates, the stirring plate 301c at one end can lift the asphalt modifier from bottom to top, while the stirring plate 301c at the other end pushes the asphalt modifier from top to bottom to improve the mixing uniformity and mixing efficiency.

[0057] After the asphalt modifier liquid has been mixed and reacted, the electrically controlled valves of the two discharge pipes 401a are opened to quickly discharge the asphalt modifier liquid into the rectangular cover 401b. After the asphalt modifier liquid in the reactor 101 is emptied, the two electrically controlled valves are closed. Then, the electric push rod 401c pushes the piston push plate 401d, causing the asphalt modifier liquid to be pushed by force and quickly pass through the filter holes of the filter plate 402a to complete the filtration. The filtered asphalt modifier liquid is discharged through the two discharge pipes 401e to quickly complete the purification process. Then, the bolts fixing the filter plate 402a are removed, and the filter plate 402a is pulled out using the handle 402b to clean the filter plate 402a. After cleaning, the filter plate 402a is re-fixed in the rectangular cover 401b to continue the filtration process.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mixing device for preparing a high-ductility, high-elasticity asphalt modifier for ultra-thin overlays, characterized in that, include: The mixing unit (100) includes a reaction vessel (101) and a support (102) for supporting the reaction vessel (101); A batching unit (200) is installed at the top of the reactor (101), and a heating and stirring unit (300) is installed inside the reactor (101). The batching unit (200) is used to add asphalt modifier raw materials into the reactor (101) in a certain proportion. The heating and stirring unit (300) includes a stirring part (301) and a heating part (302). The stirring part (301) is used to mix the raw materials, and the heating part (302) is used to heat the raw materials. An extrusion filtration unit (400) is provided at the bottom of the reactor (101). The extrusion filtration unit (400) includes an extrusion section (401) and a filtration section (402). The extrusion section (401) is used to extrude asphalt modifier liquid, and the filtration section (402) is used to filter asphalt modifier liquid.

2. The mixing device for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 1, characterized in that: The support part (102) includes a support ring (102a) fixedly sleeved on the outer wall of the reactor (101), and a plurality of evenly distributed support legs (102b) are fixedly connected to the side wall of the support ring (102a).

3. The mixing device for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 2, characterized in that: The batching unit (200) includes a feed tank (201) fixedly connected to the top of the reactor (101). The side wall of the feed tank (201) is fixedly connected to multiple feeding pipes (202), and each feeding pipe (202) is fitted with a metering pump (203).

4. The mixing device for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 3, characterized in that: The stirring unit (301) includes a servo motor (301a) fixedly installed on the top of the feed hopper (201). The output end of the servo motor (301a) rotates through the feed hopper (201) and is fixedly connected to a gate-shaped plate (301b). Both vertical ends of the gate-shaped plate (301b) are fixedly connected to multiple stirring blades (301c).

5. The mixing apparatus for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 4, characterized in that: The multiple stirring blades (301c) on the gate-shaped plate (301b) are all inclined, and the inclination angle of each stirring blade (301c) is the same.

6. The mixing device for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 3, characterized in that: The heating part (302) includes a heat-conducting cover (302a) fixedly connected to the bottom of the inner cavity of the reactor (101). The top of the heat-conducting cover (302a) is spherically protruding, and an electric heater (302b) is fixedly connected to the bottom of the inner cavity of the heat-conducting cover (302a).

7. The mixing apparatus for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 6, characterized in that: The extrusion section (401) includes two discharge pipes (401a) fixedly connected to the bottom of the reactor (101). The walls of the two discharge pipes (401a) are fitted with electrically controlled valves. The bottom ends of the two discharge pipes (401a) are fixedly connected to a rectangular cover (401b). An electric push rod (401c) is fixedly connected to one side of the rectangular cover (401b). The output end of the electric push rod (401c) is sealed and slides through the rectangular cover (401b) and is fixedly connected to a piston push plate (401d). Two discharge pipes (401e) are fixedly connected to one side of the rectangular cover (401b).

8. The mixing apparatus for preparing high-ductility and high-elasticity asphalt modifier for ultra-thin overlays according to claim 7, characterized in that: The filter section (402) includes a filter plate (402a) that is fixed to one side of a rectangular cover (401b) by bolts. One end of the filter plate (402a) slides through into the rectangular cover (401b), and a handle (402b) is fixedly connected to one side of the filter plate (402a).

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