Asphalt weighing secondary metering device for asphalt mixing station

Abstract

The utility model discloses an asphalt weighing secondary metering device for an asphalt mixing station, and particularly relates to the technical field of asphalt metering equipment, the asphalt weighing secondary metering device comprises a fixing frame, a material storage barrel is fixedly installed on the outer top surface of the fixing frame, a conveying groove is fixedly installed in the fixing frame, a rotating plate is arranged on one side of the top surface of the fixing frame, and the rotating plate is arranged on the other side of the top surface of the fixing frame. And a plurality of electronic scales are fixedly mounted on the top surface of the rotating plate. According to the asphalt weighing secondary metering device for the asphalt mixing station, in actual work, liquid asphalt in the material storage barrel falls into the conveying groove and falls into the vessel placed on the electronic scale through the conveying groove so as to meter the asphalt, the heating wire generates heat, the air cylinder pushes the fixing plate to descend, and the asphalt is weighed. According to the asphalt metering device, asphalt on the inner wall of the material storage barrel is cleaned, the reciprocating screw rod rotates to enable the scraper to move to clean the asphalt in the conveying groove, so that the asphalt attached to the inner wall of the material storage barrel and the inner wall of the conveying groove can be cleaned, and the asphalt cost during metering is saved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt metering equipment technology, and in particular to a secondary asphalt weighing and metering device for asphalt mixing plants. Background Technology

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a type of high-viscosity organic liquid, which often exists in liquid or semi-solid petroleum form. It has a black surface and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. In asphalt mixing plants, before mixing, asphalt needs to be weighed using a secondary asphalt weighing device to facilitate the adjustment of various raw material ratios by the staff.

[0003] A search revealed, for example, a utility model with announcement number CN207227899U, which discloses a secondary asphalt metering device for asphalt mixing equipment. The device includes a main body, an inlet pipe fixedly installed on one side of the main body, and a liquid holding tank fixedly installed on the inner wall of the bottom of the main body. One end of the inlet pipe extends through the main body into the liquid holding tank. An installation plate is fixedly installed inside the main body. This utility model transports asphalt through an outlet pipe and a suction pipe. However, liquid asphalt has a certain viscosity and gradually hardens after cooling. Therefore, during pipeline transportation, liquid asphalt easily adheres to the inside of the pipeline, easily causing the measured volume or weight of asphalt to be less than the actual value. Furthermore, if it is not removed, it easily leads to an increase in asphalt metering costs. This utility model is inconvenient for removing and cleaning the asphalt adhering to the inside of the pipeline. Therefore, to solve the above defects, the inventor proposes a secondary asphalt weighing and metering device for asphalt mixing plants. Utility Model Content

[0004] The main purpose of this utility model is to provide a secondary metering device for asphalt weighing in asphalt mixing plants, which can effectively solve the problem that existing asphalt metering devices are not convenient for removing and cleaning asphalt adhering to the inside of pipes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A secondary asphalt weighing and metering device for an asphalt mixing plant includes a fixed frame, a storage bucket fixedly installed on the outer top surface of the fixed frame, a conveying trough fixedly installed inside the fixed frame, a rotating plate provided on one side of the top surface of the fixed frame, and multiple electronic scales fixedly installed on the top surface of the rotating plate for secondary metering of asphalt in the asphalt mixing plant.

[0007] A cylinder is fixedly installed on one side of the opening at the top of the storage hopper, and a connecting plate is fixedly installed at the output end of the cylinder. A fixing plate is detachably connected to the bottom surface of the connecting plate. A heating wire is fixedly installed inside the storage hopper, and a power supply is provided inside the storage hopper to provide power for the operation of the heating wire. A guide pipe with a valve is fixedly installed on the bottom surface of the storage hopper.

[0008] Preferably, the top surface of the conveying trough is provided with movable grooves on both sides. A reciprocating screw is rotatably connected to one side of the two movable grooves, and a slide rod is fixedly installed on the other side of the two movable grooves. A mounting bracket is threadedly connected to the outer surface of the reciprocating screw, and the mounting bracket is slidably connected to the slide rod. An electric push rod is fixedly installed on the top surface of the mounting bracket, and a scraper is fixedly installed at the output end of the electric push rod.

[0009] Preferably, a first motor is fixedly installed on one side of the outer surface of the conveying trough, and the output end of the first motor is fixedly connected to a reciprocating lead screw, and the conveying trough is inclined toward one side of the rotating plate.

[0010] Preferably, a rotating shaft is rotatably connected to one side of the top surface of the fixed frame, and the rotating shaft is fixedly connected to the bottom surface of the rotating plate. A transmission gear is fixedly installed at one end of the rotating shaft extending to the bottom surface of the fixed frame. A sector gear is rotatably connected to the side of the bottom surface of the fixed frame near the transmission gear. A second motor is fixedly installed on the side of the bottom surface of the fixed frame near the sector gear, and the output end of the second motor is fixedly connected to the sector gear.

[0011] Preferably, multiple limiting covers are fixedly installed on the top surface of the rotating plate, and the multiple limiting covers correspond one-to-one with multiple electronic scales. The electronic scales are located inside the limiting covers. Threaded rods are threadedly connected to both sides of the outer surface of the limiting cover, and the opposite ends of the two threaded rods are rotatably connected to the limiting plates. Two telescopic rods are fixedly installed on both sides inside the limiting cover, and the four telescopic rods are fixedly connected to the two limiting plates respectively.

[0012] Preferably, a handle is fixedly installed at one end of each of the two threaded rods located outside the limiting cover.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model discloses a secondary asphalt weighing and metering device for asphalt mixing plants. By setting up a storage bin and a conveying trough, in actual operation, opening a valve allows liquid asphalt in the storage bin to fall through a guide pipe into the conveying trough, and then into a container placed on an electronic scale for asphalt metering. A heating wire generates heat to prevent the liquid asphalt from cooling and hardening, while a cylinder pushes a fixed plate downward to clean the asphalt on the inner wall of the storage bin. A reciprocating screw rotates, causing a scraper to move and clean the asphalt in the conveying trough. This effectively cleans the asphalt adhering to the inner walls of the storage bin and the conveying trough, saving asphalt costs during metering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the storage tank of this utility model;

[0017] Figure 3 This is a schematic diagram of the conveying trough structure of this utility model;

[0018] Figure 4 This is a bottom view of the fixing frame structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the rotating plate structure of this utility model.

[0020] In the diagram: 1. Fixed frame; 2. Storage bin; 3. Conveying trough; 201. Heating wire; 202. Cylinder; 203. Connecting plate; 204. Fixed plate; 205. Guide pipe; 301. Movable trough; 302. Reciprocating screw; 303. Mounting frame; 304. First motor; 305. Slide rod; 306. Electric actuator; 307. Scraper; 101. Rotating shaft; 102. Transmission gear; 103. Second motor; 104. Sector gear; 105. Rotating plate; 1051. Electronic scale; 1052. Limit cover; 1053. Threaded rod; 1054. Telescopic rod; 1055. Limit plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] This utility model discloses a secondary metering device for asphalt weighing in asphalt mixing plants, such as... Figure 1-5 As shown, it includes a fixed frame 1, and a storage tank 2 is fixedly installed on the outer top surface of the fixed frame 1. The storage tank 2 contains liquid asphalt.

[0023] The fixed frame 1 has a conveying trough 3 fixedly installed inside. A rotating plate 105 is provided on one side of the top surface of the fixed frame 1, and multiple electronic scales 1051 are fixedly installed on the top surface of the rotating plate 105 for secondary metering of asphalt in the asphalt mixing plant.

[0024] A cylinder 202 is fixedly installed on one side of the opening on the top surface of the storage hopper 2, and a connecting plate 203 is fixedly installed on the output end of the cylinder 202. A fixing plate 204 is detachably connected to the bottom surface of the connecting plate 203. The cylinder 202 pushes the connecting plate 203 to rise and fall, which in turn drives the fixing plate 204 to rise and fall, so as to clean the asphalt adhering to the inner wall of the storage hopper 2. The fixing plate 204 can be disassembled and cleaned in a detachable manner.

[0025] A heating wire 201 is fixedly installed inside the storage tank 2, and a power source is provided inside the storage tank 2 to provide power for the operation of the heating wire 201. The heating wire 201 can generate heat to prevent the liquid asphalt inside the storage tank 2 from cooling and hardening. A guide pipe 205 with a valve is fixedly installed on the outer bottom surface of the storage tank 2.

[0026] Movable grooves 301 are provided on both sides of the top surface of the conveying groove 3. A reciprocating screw 302 is rotatably connected to one side of the interior of the two movable grooves 301, and a slide rod 305 is fixedly installed on the other side of the interior of the two movable grooves 301. A mounting bracket 303 is threadedly connected to the outer surface of the reciprocating screw 302, and the mounting bracket 303 is slidably connected to the slide rod 305. When the reciprocating screw 302 rotates, it will drive the mounting bracket 303 to reciprocate along the slide rod 305.

[0027] An electric actuator 306 is fixedly installed on the top surface of the mounting frame 303, and a scraper 307 is fixedly installed on the output end of the electric actuator 306. The electric actuator 306 pushes the scraper 307 to rise and fall, so that the scraper 307 contacts the inner wall of the conveying trough 3. As the mounting frame 303 moves, the liquid asphalt on the inner wall of the conveying trough 3 is cleaned.

[0028] A first motor 304 is fixedly installed on one side of the outer surface of the conveying trough 3, and the output end of the first motor 304 is fixedly connected to the reciprocating screw 302. The conveying trough 3 is tilted towards one side of the rotating plate 105, so that the liquid asphalt falling into the conveying trough 3 can slide into the container placed on the top surface of the electronic scale 1051.

[0029] A rotating shaft 101 is rotatably connected to one side of the top surface of the fixed frame 1, and the rotating shaft 101 is fixedly connected to the bottom surface of the rotating plate 105. When the rotating shaft 101 rotates, it can drive the rotating plate 105 to rotate.

[0030] A transmission gear 102 is fixedly installed at one end of the rotating shaft 101 extending to the bottom surface of the fixed frame 1. A sector gear 104 is rotatably connected to the bottom surface of the fixed frame 1 near the transmission gear 102. A second motor 103 is fixedly installed on the bottom surface of the fixed frame 1 near the sector gear 104, and the output end of the second motor 103 is fixedly connected to the sector gear 104. The second motor 103 drives the sector gear 104 to rotate, and the sector gear 104 will drive the transmission gear 102 to rotate intermittently, so as to drive the rotating shaft 101 and the rotating plate 105 to rotate intermittently, so that multiple electronic scales 1051 can rotate sequentially to the bottom of the conveying trough 3.

[0031] Multiple limiting covers 1052 are fixedly installed on the top surface of the rotating plate 105, and each of the multiple limiting covers 1052 corresponds to a multiple electronic scales 1051. The electronic scales 1051 are located inside the limiting covers 1052. Threaded rods 1053 are threadedly connected to both sides of the outer surface of the limiting covers 1052, and a limiting plate 1055 is rotatably connected to one end of each of the two threaded rods 1053. Two telescopic rods 1054 are fixedly installed on both sides inside the limiting covers 1052, and the four telescopic rods 1054 are fixedly connected to two limiting plates 1055 respectively. Rotating the threaded rods 1053 can push the limiting plates 1055 to move. When the limiting plates 1055 move, they will cause the telescopic rods 1054 to extend and retract. When the two limiting plates 1055 approach each other, they will clamp and fix the container placed on the electronic scale 1051 to prevent the container from moving during the measurement process and affecting the measurement result.

[0032] A handle is fixedly installed at one end of each of the two threaded rods 1053 located outside the limit cover 1052.

[0033] The working principle of this utility model is as follows: A container is placed on an electronic scale 1051, and then the threaded rod 1053 is rotated to push the two limiting plates 1055 closer together, clamping and fixing the container placed on the electronic scale 1051. The valve is opened, allowing the liquid asphalt in the storage tank 2 to fall into the conveying trough 3 through the guide pipe 205, and then into the container placed on the electronic scale 1051 to measure the asphalt. During this process, the cylinder 202 pushes the connecting plate 203 to rise and fall, which in turn drives the fixing plate 204 to rise and fall, cleaning the asphalt adhering to the inner wall of the storage tank 2. The fixing plate 204 pushes the liquid asphalt adhering to the inner wall of the storage tank 2 to fall down, allowing it to fall into the conveying trough 3 through the guide pipe 205. The first motor 304 drives the reciprocating screw 302, which causes the mounting frame 303 to move the scraper 307, pushing the liquid asphalt on the inner wall of the conveying trough 3 into the container that has fallen onto the electronic scale 1051.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bitumen weighing secondary metering device for bitumen mixing plants, comprising a fixed frame (1), characterized in that: The outer top surface of the fixed frame (1) is fixedly installed with a storage barrel (2), the inside of the fixed frame (1) is fixedly installed with a conveying groove (3), one side of the top surface of the fixed frame (1) is provided with a rotating plate (105), and the top surface of the rotating plate (105) is fixedly installed with a plurality of electronic scales (1051) for secondary metering of asphalt in the asphalt mixing station. One side of the top surface opening of the storage barrel (2) is fixedly installed with an air cylinder (202), and the output end of the air cylinder (202) is fixedly installed with a connecting plate (203), the bottom surface of the connecting plate (203) is detachably connected with a fixed plate (204), the inside of the storage barrel (2) is fixedly installed with a heating wire (201), and the inside of the storage barrel (2) is provided with a power supply for providing power for the operation of the heating wire (201), and the outer bottom surface of the storage barrel (2) is fixedly installed with a material guiding pipe (205) with a valve.

2. A secondary weighing device for asphalt weighing in an asphalt mixing plant according to claim 1, characterized in that: The top surface of the conveying groove (3) is provided with a movable groove (301) on both sides, and the inside of the two movable grooves (301) is rotatably connected with a reciprocating lead screw (302) on one side, and the inside of the two movable grooves (301) is fixedly installed with a sliding rod (305) on the other side, the outer surface of the reciprocating lead screw (302) is threadedly connected with a mounting bracket (303), and the mounting bracket (303) is slidably connected with the sliding rod (305), the top surface of the mounting bracket (303) is fixedly installed with an electric push rod (306), and the output end of the electric push rod (306) is fixedly installed with a scraper (307).

3. A secondary weighing device for asphalt weighing in an asphalt mixing plant according to claim 2, characterized in that: The outer surface of the conveying groove (3) is fixedly installed with a first motor (304) on one side, and the output end of the first motor (304) is fixedly connected with the reciprocating lead screw (302), and the conveying groove (3) is inclined to one side of the rotating plate (105).

4. A secondary weighing device for asphalt weighing in an asphalt mixing plant according to claim 1, characterized in that: The top surface of the fixed frame (1) is rotatably connected with a rotating shaft (101), and the bottom surface of the rotating plate (105) is fixedly connected with the rotating shaft (101), one end of the rotating shaft (101) extending to the bottom surface of the fixed frame (1) is fixedly installed with a transmission gear (102), the bottom surface of the fixed frame (1) is rotatably connected with a sector gear (104) on one side close to the transmission gear (102), the bottom surface of the fixed frame (1) is fixedly installed with a second motor (103) on one side close to the sector gear (104), and the output end of the second motor (103) is fixedly connected with the sector gear (104).

5. A secondary weighing device for asphalt weighing in an asphalt mixing plant according to claim 1, characterized in that: The top surface of the rotating plate (105) is fixedly installed with a plurality of limiting covers (1052), and the plurality of limiting covers (1052) correspond one-to-one with the plurality of electronic scales (1051), the electronic scale (1051) is located in the inside of the limiting cover (1052), the outer surface of the limiting cover (1052) is threadedly connected with a threaded rod (1053) on both sides, and the opposite ends of the two threaded rods (1053) are rotatably connected with a limiting plate (1055), the inside of the limiting cover (1052) is fixedly installed with two telescopic rods (1054) on both sides, and the four telescopic rods (1054) are respectively fixedly connected with the two limiting plates (1055).

6. A secondary weighing device for asphalt weighing in an asphalt mixing plant according to claim 5, characterized in that: Two said threaded rods (1053) are fixedly installed with a handle at one end outside the limiting cover (1052).

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