A raw material mixing device for asphalt production
By adopting the sealing design of cover plate and scraper structure in the asphalt mixing device, combined with the stirring structure of multiple groups of mixed fan blades and scrapers, the problems of raw material adhesion and heat loss are solved, and more uniform mixing and more efficient energy utilization are achieved.
Patent Information
- Application Number
- CN202420586439.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-26
AI Technical Summary
During the mixing process, the raw materials are easily adhered to the inner wall of the device, resulting in uneven mixing, poor quality, and the open design leads to heat loss, increasing energy consumption and production costs.
A raw material mixing device for asphalt production is designed, and the cover plate and scraper structure is used to keep the mixing box in a sealed state to reduce heat loss; at the same time, multiple sets of mixed fan blades and scrapers are installed on the shaft to ensure that the raw materials are uniform and thorough during the mixing process and avoid adhesion.
The sealing design reduces heat loss, saves electricity, improves the quality and working efficiency of bitumen mixing, and reduces production costs.
Smart Images
Figure CN222724196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an asphalt raw material mixing and processing device, in particular to a raw material mixing device for asphalt production. Background Art
[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a waterproof, moisture-proof and anti-corrosion organic cementitious material, mainly used in industries such as coatings, plastics, rubber, and road paving. The raw materials used to produce asphalt include a variety of hot aggregates and stones. Therefore, before asphalt is put into use, it needs to be made through a raw material proportioning mixing device.
[0003] Application No. 2019222481469 discloses a stirring device for asphalt mixture production, which includes a stirring box, a heating layer and a discharge port. A rotating shaft is rotatably connected in the stirring box, and a plurality of stirring rods are welded on the rotating shaft. A feeding port is provided at the top of the stirring box, and a heating layer is provided on the inner wall of the stirring box, and a temperature sensor is provided at the upper end of one side of the heating layer. The discharge port is provided at the bottom of the stirring box, and a chute is provided in the wall surface on both sides of the discharge port, and a bottom plate is slidably matched in the chute. Cylinders are provided on both sides of the bottom of the stirring box, and connecting rods are welded at the ends of the piston rods in the cylinders, and the bottom of the connecting rods is welded to the bottom plate. The utility model can make the temperature in the stirring box always in a state suitable for asphalt mixture, so that the asphalt mixture is mixed more evenly, and avoid the stirring bearing from being subjected to large resistance, saving energy consumption.
[0004] During actual use, it was found that the products of the above patented technology still have the following deficiencies: only a single stirring component is provided, but since some incoming materials in the asphalt raw materials are easy to stick together, the raw materials are easy to adhere to the inner wall of the mixing device during the mixing process, so that the mixing is not uniform and thorough enough, the asphalt production quality is poor, and the work efficiency is also reduced; the upper end of the feeding port is open, which will cause the heat inside the box to be lost, and repeated heating is required, which wastes electricity and increases production costs. Utility Model Content
[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a raw material mixing device for asphalt production.
[0006] According to the technical solution provided in the embodiment of the present application, a raw material mixing device for asphalt production is provided, a feed pipe is inserted into the left side of the upper top of the mixing box, a rotating shaft is vertically installed in the middle of the mixing box, a servo motor is installed in the middle of the upper top of the mixing box, a safety valve is installed on the right side of the upper top of the mixing box, a base is installed on the outer side of the bottom end of the mixing box, an electric heating box is mounted on the lower left outer side of the mixing box, a heating wire is clamped around the inner and outer layers of the mixing box, a feed pipe is assembled at the bottom end of the mixing box, a temperature sensor is installed on the top of the mixing box, a through groove is dug in the middle of the top of the mixing box and a bearing is installed, a hinged cover plate is installed on the top of the feed pipe, and a cover The plate is matched with the feed pipe and covered, the electric heating box is connected to the heating wire through an electric heat transfer circuit, one end of the rotating shaft passes through the bearing, the servo motor is connected to the rotating shaft by electric rotation, a plurality of groups of mixing blades with equal distances are arranged on the rotating shaft, a bracket is also mounted on the rotating shaft, a propeller blade is arranged at the bottom of the rotating shaft, the specifications of the mixing blades decrease from top to bottom, buffer holes are dug on the mixing blades, the bracket is arranged above the mixing blades, the two ends of the bracket extend to the left and right inner sides of the mixing box respectively, scrapers are arranged at the left and right ends of the bracket, and the scrapers are in conflict with the inner wall of the mixing box.
[0007] Furthermore, the propeller blades extend into the feed pipe and match each other, and the temperature sensor and the safety valve are connected to the external controller by a sensor control line.
[0008] Furthermore, a set of discharge mechanisms is inserted at the bottom end of the discharge pipe, and the inner ring of the bearing matches the rotating shaft and is rotatably connected.
[0009] Furthermore, the discharge mechanisms are arranged in groups of two and symmetrically, and the discharge mechanisms include a cylinder, a baffle is arranged at the output end of the cylinder, the baffle is inserted into the discharge pipe, and adjacent baffles are assembled and abutted against each other.
[0010] In summary, the beneficial effects of this application are:
[0011] By setting the cover plate and the scraper, after the asphalt raw materials are input into the mixing box through the feed pipe, after the input of various raw materials is completed, the cover plate and the feed pipe are sealed and modified, and the mixing box can be in a sealed state, changing the original open design, reducing the heat loss inside the box, saving electricity, and reducing production costs; the rotating shaft is not only provided with mixing blades, but also with a bracket, the two ends of the bracket extend to the left and right inner sides of the mixing box respectively, and scrapers are installed on the left and right ends of the bracket. The scrapers are in conflict with the inner wall of the mixing box, so that the stirring components in the mixing box have diversity. When the mixing box stirs and mixes the various asphalt raw materials in the mixing box through the rotating shaft, servo motor and mixing blades, when some of the raw materials are easy to adhere to the inner wall of the mixing device, they can be scraped off by the scraper of the bracket, so that the mixing can be uniform and thorough, thereby improving the quality of asphalt production and improving work efficiency; at the same time, a propeller blade is set at the bottom end of the rotating shaft, which is conducive to discharging after the asphalt mixing is completed, avoiding blockage and improving practical performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0015] Numbers in the figure: mixing box-1, feeding pipe-2, cover plate-201, electric heating box-3, heating wire-301, servo motor-4, rotating shaft-5, mixing fan blade-6, bracket-7, scraper-701, propeller blade-8, temperature sensor-9, safety valve-10, feeding pipe-11, discharging mechanism-12, cylinder-1201, baffle-1202, bearing-13, base-14. DETAILED DESCRIPTION
[0016] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.
[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0018] like Figure 1 and Figure 2 As shown, a raw material mixing device for asphalt production, a feed pipe 2 is inserted into the left side of the upper top of the mixing box 1, a rotating shaft 5 is vertically installed in the middle of the mixing box 1, a servo motor 4 is installed in the middle of the upper top of the mixing box 1, a safety valve 10 is installed on the right side of the upper top of the mixing box 1, a base 14 is installed on the outer side of the bottom end of the mixing box 1, an electric heating box 3 is mounted on the lower left outer side of the mixing box 1, a heating wire 301 is sandwiched between the inner and outer layers of the mixing box 1, a feed pipe 11 is assembled at the bottom end of the mixing box 1, a temperature sensor 9 is installed at the top of the mixing box 1, and a hole is dug in the middle of the top of the mixing box 1. A through groove is provided and a bearing 13 is installed, a hinged cover plate 201 is provided on the top of the feed pipe 2, one end of the rotating shaft 5 passes through the bearing 13, a plurality of groups of mixing blades 6 with equal distances are arranged on the rotating shaft 5, a bracket 7 is also mounted on the rotating shaft 5, a scraper 701 is in conflict with the inner wall of the mixing box 1, a propeller blade 8 extends into the discharge pipe 11 and matches, a propeller blade 8 is arranged at the bottom end of the rotating shaft 5, two ends of the bracket 7 extend to the left and right inner sides of the mixing box 1 respectively, scrapers 701 are arranged at the left and right ends of the bracket 7, and a group of discharge mechanisms 12 is inserted at the bottom end of the discharge pipe 11.
[0019] Embodiment 1:
[0020] like Figure 1 ,and Figure 2 As shown, after the asphalt raw material is input into the mixing box 1 through the feed pipe, after the input of various raw materials is completed, the cover plate 201 and the feed pipe 2 are sealed and modified, and the mixing box 1 can be in a sealed state, changing the original open design, reducing the heat loss inside the box, saving electricity, and reducing production costs; the rotating shaft 5 is not only provided with a mixing fan blade 6, but also with a bracket 7, the two ends of the bracket 7 extend to the left and right inner sides of the mixing box 1 respectively, and the left and right ends of the bracket 7 are provided with scrapers 701, and the scrapers 701 are in conflict with the inner wall of the mixing box 1, so that the stirring components in the mixing box have diversity. When the mixing box stirs and mixes the various asphalt raw materials in the mixing box 1 through the rotating shaft 5, the servo motor 4 and the mixing fan blade 6, the electric heating box 3 is heated by the heating wire 301 to Heat is transferred in the mixing box, and the internal temperature is monitored by a temperature sensor, so that the temperature in the mixing box 1 is always suitable for the asphalt mixture, so that the asphalt raw materials can be heated and melted. When some raw materials are easily adhered to the inner wall of the mixing device, they can be scraped off by the scraper 701 of the bracket 7, so that they can be mixed evenly and thoroughly, thereby improving the quality of asphalt production and working efficiency. At the same time, a propeller blade 8 is arranged at the bottom end of the rotating shaft 5, which is conducive to discharging the asphalt after the mixing is completed, thereby improving the practical performance. The setting of the safety valve 10 can release the pressure in time by opening the safety valve 10 when the heat in the mixing box 1 is too high, thereby avoiding excessive temperature during the mixing of the asphalt raw materials, which may cause the raw materials to be scrapped, and ensuring safe production at the same time.
[0021] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.
Claims
1. A raw material mixing device for asphalt production, comprising a mixing box (1), characterized in that: A feed pipe (2) is inserted at the left side of the upper top of the mixing box (1), a rotating shaft (5) is vertically installed in the middle of the mixing box (1), a servo motor (4) is installed in the middle of the upper top of the mixing box (1), a safety valve (10) is installed at the right side of the upper top of the mixing box (1), a base (14) is installed on the outer side of the bottom end of the mixing box (1), an electric heating box (3) is mounted on the lower left outer side of the mixing box (1), a heating wire (301) is sandwiched between the inner and outer layers of the mixing box (1), a feed pipe (11) is assembled at the bottom end of the mixing box (1), a temperature sensor (9) is installed at the top of the mixing box (1), and a through groove is dug in the middle of the top of the mixing box (1) and a bearing (13) is installed; The top of the feed pipe (2) is hingedly connected to a cover plate (201), and one end of the rotating shaft (5) passes through a bearing (13); A plurality of groups of mixing blades (6) are arranged at equal distances on the rotating shaft (5), a bracket (7) is also mounted on the rotating shaft (5), and a propeller blade (8) is arranged at the bottom end of the rotating shaft (5); The two ends of the bracket (7) extend toward the left and right inner sides of the mixing box (1) respectively, and scrapers (701) are installed at the left and right ends of the bracket (7); A set of discharge mechanisms (12) is inserted at the bottom end of the discharge pipe (11).
2. A raw material mixing device for asphalt production according to claim 1, characterized in that: The cover plate (201) is adapted to and covers the feed pipe (2), the electric heating box (3) is connected to the heating wire (301) via an electric heat transfer circuit, and the servo motor (4) is connected to the rotating shaft (5) via electric rotation.
3. The raw material mixing device for asphalt production according to claim 1, characterized in that: The specifications of the mixing blades (6) decrease from top to bottom, and buffer holes are provided on the mixing blades (6).
4. The raw material mixing device for asphalt production according to claim 1, characterized in that: The support (7) is installed above the mixing blade (6), the scraper (701) contacts the inner wall of the mixing box (1), and the propeller blade (8) extends into the discharge pipe (11) and matches with it.
5. The raw material mixing device for asphalt production according to claim 1, characterized in that: The temperature sensor (9) and the safety valve (10) are both connected to an external controller via a sensing control line, and the inner ring of the bearing (13) is matched with the rotating shaft (5) and is rotatably connected.
6. The raw material mixing device for asphalt production according to claim 1, characterized in that: The material discharge mechanisms (12) are arranged in groups of two and are symmetrically arranged. The material discharge mechanisms (12) include a cylinder (1201). A baffle (1202) is arranged at the output end of the cylinder (1201). The baffle (1202) is inserted into the discharge pipe (11). The adjacent baffles (1202) are assembled and abutted against each other.