Smoke suppression asphalt mixing device

Abstract

The utility model belongs to the technical field of asphalt mixing equipment, and particularly relates to a smoke suppression asphalt mixing device, which is characterized in that when a mixing tank mixes asphalt, generated toxic and harmful gases such as asphalt smoke are blocked by a round cover and a discharging blocking component, so that the smoke suppression effect is improved; asphalt smoke dust and harmful gas are prevented from escaping from the feeding port and the discharging port, so that the body health of workers is protected, a waste gas pipe can be connected with an external waste gas treatment device, a control assembly is in linkage with the stirring tank through cooperation of an annular groove, a guide plate and a spiral groove, and a round cover is automatically opened when the stirring tank rotates reversely for discharging, so that the working efficiency is improved. When the stirring tank rotates forwards to stir asphalt, the round cover is automatically and tightly covered, linkage control is achieved, meanwhile, the operation process is greatly simplified, and therefore the working efficiency of the device is improved, and the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt mixing equipment, and particularly relates to a smoke-suppressing asphalt mixing device. Background Art

[0002] Asphalt is a product of the petroleum industry with complex components. A large number of studies have shown that at high temperatures, the light components of asphalt are extremely prone to cracking and volatilizing out of the asphalt system, thereby releasing a large amount of toxic asphalt fumes. When the asphalt mixture reaches about 180°C, the released asphalt fumes can reach 10 - 12 mg / m³, which contains more than 100 organic substances, directly damaging the health of construction workers and causing relatively large pollution to the environment.

[0003] During the mixing process of asphalt mixture by traditional asphalt mixing devices, toxic and harmful gases such as asphalt fumes often escape through the feeding port of the mixing equipment and the discharging port of the mixing device, thus endangering the physical health of relevant personnel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a smoke-suppressing asphalt mixing device to solve the problems mentioned in the background art.

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

[0006] A smoke-suppressing asphalt mixing device includes a base and a mixing tank. The mixing tank is rotatably installed on the upper side of the base. An outlet is provided on the left side of the mixing tank, and an inlet is provided on the right side of the mixing tank. Two rotationally symmetric discharge inclined plates are installed on the left side of the mixing tank, and the discharge inclined plates match the mixing tank and the outlet. An outlet blocking mechanism is provided on the left side of the mixing tank, and an inlet blocking mechanism is provided on the right side of the mixing tank;

[0007] The outlet blocking mechanism includes sliding sleeves fixedly connected to the base. The number of sliding sleeves is two and they are symmetrically distributed front and back. A sliding rod is slidably installed left and right inside the sliding sleeve. The left sides of the two sliding rods are commonly connected to a cross bar. A circular cover matching the outlet is rotatably installed on the right side of the middle of the cross bar. A control component for controlling the left and right movement of the circular cover is installed on the upper side of the mixing tank;

[0008] The inlet blocking mechanism includes a feed hopper. The feed hopper is fixedly connected to the base and rotatably connected to the inlet. An exhaust pipe is connected to the upper side of the feed hopper, and a discharge blocking component is installed in the middle of the feed hopper.

[0009] A gear ring matching the outer side of the tank body of the stirring tank is installed. The control assembly includes a rotating shaft. The rotating shaft is oriented left and right and is rotatably connected to the base. A gear concentrically fixed with the rotating shaft is rotatably installed on the right side of the rotating shaft. The gear meshes with the gear ring. Ring grooves are formed on both the left and right sides of the rotating shaft. A spiral groove connected to the two ring grooves is formed in the middle of the rotating shaft. Guide plates are hinged at the joints of the spiral groove and the left and right ring grooves. The guide plates are hinged to the rotating shaft up and down. The guide plates are inclined along the end direction of the spiral groove and the other ends are abutted against the side walls of the ring grooves. A spring plate is installed between the guide plates and the rotating shaft. A push rod is connected to the upper side of the left end of the sliding rod. A runner matching the ring groove and the spiral groove is rotatably installed on the lower side of the right end of the push rod.

[0010] The blocking assembly includes a feeding wheel. A plurality of partition plates evenly distributed in a circumferential manner are fixed on the outer side of the feeding wheel. The feeding wheel is horizontally installed inside the feeding hopper and is rotatably connected thereto. A feeding bin matching the feeding wheel and the partition plates is provided in the middle of the feeding hopper. A motor is installed outside the feeding bin. The output end of the motor is in transmission connection with the feeding wheel.

[0011] The cross bar is slidably connected to the sliding rod left and right. A tension spring is installed between the sliding rod and the cross bar.

[0012] The control assemblies are symmetrically distributed front and back, and the spiral grooves of the two rotating shafts are opened in the same direction.

[0013] A discharge guiding hopper fixedly connected to the base is installed below the discharge port.

[0014] The round cover and the discharging blocking assembly prevent toxic and harmful gases such as asphalt fumes generated during the agitation of asphalt in the mixing tank from escaping through the feeding port and the discharging port, thus protecting the health of the staff. The cooperation of the annular groove, the guiding plate and the spiral groove enables the control assembly to be linked with the mixing tank. When the mixing tank rotates in reverse for discharging, the round cover is automatically opened, and when the mixing tank rotates forward for agitating asphalt, the round cover is automatically tightened. While realizing the linkage control, the operation process is greatly simplified, thereby improving the working efficiency of the device and the convenience of use of the device. The baffle conveys the raw materials to the lower side of the feeding wheel. The cooperation of the feeding bin and the baffle enables the normal feeding of the device while multiple baffles can separate the feeding port from the outside world when the feeding wheel is in any position, preventing the escape of asphalt fumes. The structure is simple and reliable while ensuring the service life of the blocking assembly. The tension spring makes the round cover fit more tightly with the discharging port, thus ensuring the sealing performance of the mixing tank and improving the smoke suppression performance of the device. The two sets of control assemblies symmetrically distributed and with the same opening direction of the spiral grooves make the forces on both sides of the cross bar evenly stressed, ensuring the reliability of the control assembly while extending its service life. The guiding hopper can receive the asphalt during the discharging of asphalt, enabling the asphalt to be continuously and stably supplied to the designated area, avoiding the scattering and waste of asphalt during the discharging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a schematic sectional structural diagram of the present utility model.

[0018] Figure 3 It is a schematic top structural diagram of the present utility model.

[0019] Figure 4 It is Figure 3 the enlarged structural diagram at A in

[0020] Figure 5 It is Figure 4 the enlarged structural diagram at B in

[0021] Base 1, mixing tank 2, discharging port 3, feeding port 4, discharging inclined plate 5, sliding sleeve 6, sliding rod 7, cross bar 8, round cover 9, feeding hopper 10, waste gas pipe 11, gear ring 12, rotating shaft 13, gear 14, annular groove 15, spiral groove 16, guiding plate 17, spring piece 18, push rod 19, rotating wheel 20, feeding wheel 21, baffle 22, feeding bin 23, motor 24, tension spring 25, guiding hopper 26. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] As Figures 1-5 shown, a smoke-suppressing asphalt mixing device includes a base 1 and a mixing tank 2. The mixing tank 2 is rotatably installed on the upper side of the base 1. An outlet 3 is provided on the left side of the mixing tank 2, and a feed inlet 4 is provided on the right side of the mixing tank 2. Two rotationally symmetric discharge inclined plates 5 are installed on the left side of the mixing tank 2. The discharge inclined plates 5 are matched with the mixing tank 2 and the outlet 3. An outlet blocking mechanism is provided on the left side of the mixing tank 2, and an inlet blocking mechanism is provided on the right side of the mixing tank 2;

[0024] The outlet blocking mechanism includes sliding sleeves 6 fixedly connected to the base 1. The number of sliding sleeves 6 is two and they are symmetrically distributed front and back. A sliding rod 7 is slidably installed left and right inside the sliding sleeve 6. The left sides of the two sliding rods 7 are jointly connected to a cross bar 8. A round cover 9 matched with the outlet 3 is rotatably installed on the right side of the middle of the cross bar 8. A control component for controlling the left and right movement of the round cover 9 is installed on the upper side of the mixing tank 2;

[0025] The inlet blocking mechanism includes a feed hopper 10. The feed hopper 10 is fixedly connected to the base 1 and rotatably connected to the feed inlet 4. An exhaust pipe 11 is connected to the upper side of the feed hopper 10, and a discharging blocking component is installed in the middle of the feed hopper 10.

[0026] When the present utility model is in use, the asphalt raw materials to be mixed are put into the inner side of the feed hopper 10. The raw materials enter the inner side of the mixing tank 2 from the feed inlet 4 for mixing. The discharging blocking component can prevent toxic and harmful gases such as asphalt smoke from escaping from the feed hopper 10. The exhaust pipe 11 can be connected to an external exhaust gas treatment device. The discharge inclined plate 5 can discharge the mixed asphalt from the outlet 3 when the mixing tank 2 rotates in reverse. The control component can control the round cover 9 to open to the left when the mixing tank 2 rotates in reverse, and control the round rod to tightly cover the outlet 3 when the mixing tank 2 rotates forward. The rotating round cover 9 does not affect the normal rotation of the mixing tank 2 while blocking the outlet 3 when the mixing tank 2 rotates forward.

[0027] The round cover 9 and the discharging blocking component prevent toxic and harmful gases such as asphalt smoke generated during the mixing of asphalt in the mixing tank 2 from escaping, preventing asphalt dust and harmful gases from escaping from the feed inlet 4 and the outlet 3, thereby protecting the health of the staff. At the same time, the control component can also control the round cover 9 to automatically open when the mixing tank 2 rotates in reverse, thereby improving the convenience of use of the device.

[0028] A gear ring 12 matching the outer side of the tank body of the stirring tank 2 is installed. The control assembly includes a rotating shaft 13. The rotating shaft 13 is oriented left and right and is rotatably connected to the base 1. A gear 14 concentrically fixed with the rotating shaft 13 is rotatably installed on the right side of the rotating shaft 13. The gear 14 meshes with the gear ring 12. Ring grooves 15 are opened on both the left and right sides of the rotating shaft 13. A spiral groove 16 connected to the two ring grooves 15 is opened in the middle of the rotating shaft 13. Guide plates 17 are hinged at the joints of the spiral groove 16 and the left and right ring grooves 15. The guide plates 17 are hinged to the rotating shaft 13 up and down. The guide plates 17 are inclined along the end direction of the spiral groove 16 and the other end abuts against the side wall of the ring groove 15. A spring piece 18 is installed between the guide plates 17 and the rotating shaft 13. The upper side of the left end of the sliding rod 7 is connected with a push rod 19. A runner 20 matching the ring groove 15 and the spiral groove 16 is rotatably installed on the lower side of the right end of the push rod 19.

[0029] As Figures 3-5 shown, one end of the spring piece 18 is fixedly connected to the rotating shaft 13 and the other end is drivingly connected to the guide plate 17. When the stirring tank 2 rotates forward, the gear ring 12 drives the rotating shaft 13 to rotate. At this time, the runner 20 moves to the right through the guiding of the spiral groove 16 and the runner 20 is always located inside the ring groove 15 on the right side. And the guide plate 17 on the right side does not affect the relative movement of the runner 20 in the ring groove 15 and can also prevent the push rod 19 from moving to the left when the runner 20 passes through the notch of the spiral groove 16. At this time, the round cover 9 covers the discharge port 3. When the stirring tank 2 is installed reversely, the rotating shaft 13 rotates reversely. When the runner 20 rotates relatively to the guide plate 17 on the right side, the guide plate 17 guides the runner 20 to the inside of the spiral groove 16. At this time, under the rotation of the rotating shaft 13, the push rod 19 drives the round cover 9 to move to the left. At this time, the round cover 9 opens the discharge port 3. When the push rod 19 continues to move to the left and the runner 20 moves to the ring groove 15 on the left side, similarly to the guide plate 17 on the right side, the guide plate 17 on the left side enables the runner 20 to only rotate relatively inside the ring groove 15 on the left side. At this time, the push rod 19 cannot move to the right. When the stirring tank 2 continues to rotate forward for stirring, under the guiding of the guide plate 17 on the left side, the runner 20 is guided to the inside of the spiral groove 16. At this time, the push rod 19 moves to the right, and so on.

[0030] The cooperation of the ring groove 15, the guide plate 17 and the spiral groove 16 enables the control assembly to be linked with the stirring tank 2. And when the stirring tank 2 rotates reversely for discharging, the round cover 9 is automatically opened. When the stirring tank 2 rotates forward to stir asphalt, the round cover 9 is automatically tightened. While realizing the linkage control, the operation process is greatly simplified, thereby improving the working efficiency of the device.

[0031] The blocking assembly includes a feed wheel 21, and a plurality of partitions evenly distributed in a circular pattern are fixed to the outside of the feed wheel 21. The feed wheel 21 is horizontally installed on the inside of the feed hopper 10 and is rotatably connected thereto. A feed bin 23 matching the feed wheel 21 and the partitions is provided in the middle of the feed hopper 10. A motor 24 is installed on the outside of the feed bin 23, and the output end of the motor 24 is transmission-connected to the feed wheel 21.

[0032] When in use, the motor 24 drives the feed wheel 21 to rotate, and the asphalt raw material is put into the inner side of the feed hopper 10. The baffle 22 transfers the raw material to the lower side of the feed wheel 21. The feed bin 23 cooperates with the baffle 22 to ensure normal feeding of the device while ensuring that the feed wheel 21 is in any position. Multiple baffles 22 can separate the feed port 4 from the outside world to prevent asphalt smoke from escaping. The structure is simple and reliable, and the service life of the blocking component is guaranteed.

[0033] The cross bar 8 is connected to the slide bar 7 by sliding left and right, and a tension spring 25 is installed between the slide bar 7 and the cross bar 8; the control components are symmetrically distributed front and back, and the spiral grooves 16 of the two rotating shafts 13 are opened in the same direction; a discharge guide bucket 26 fixedly connected to the base 1 is installed at the lower side of the discharge port 3.

[0034] The tensioning spring 25 makes the round cover 9 more tightly contact with the discharge port 3, thereby ensuring the sealing of the mixing tank 2, thereby improving the smoke suppression performance of the device. The two groups of control components are symmetrically distributed and the spiral grooves 16 are opened in the same direction, so that the force on both sides of the cross bar 8 is uniform, ensuring the reliability of the control components while extending their service life. The guide bucket 26 can receive the asphalt when the asphalt is discharged, so that the asphalt can be continuously and stably supplied to the designated area, avoiding the scattering and waste of asphalt during the discharge process.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A smoke-suppressing asphalt mixing device, comprising a base and a mixing tank. The mixing tank is rotatably installed on the upper side of the base. An outlet is provided on the left side of the mixing tank, and an inlet is provided on the right side of the mixing tank. It is characterized in that: On the left side of the mixing tank, there are two rotationally symmetric discharge inclined plates installed, which are matched with the mixing tank and the discharge port. An outlet blocking mechanism is provided on the left side of the mixing tank, and an inlet blocking mechanism is provided on the right side of the mixing tank; The outlet blocking mechanism includes sliding sleeves fixedly connected to the base. The number of sliding sleeves is two and they are symmetrically distributed front and back. A sliding rod is installed to slide left and right inside the sliding sleeves. The left sides of the two sliding rods are jointly connected to a cross bar. A round cover matching the discharge port is rotatably installed on the right side of the middle of the cross bar. A control component for controlling the left and right movement of the round cover is installed on the upper side of the mixing tank; The inlet blocking mechanism includes a feed hopper, which is fixedly connected to the base and rotatably connected to the feed port. An exhaust pipe is connected to the upper side of the feed hopper, and a discharge blocking component is installed in the middle of the feed hopper.

2. The smoke suppression asphalt mixing device according to claim 1, characterized in that: A gear ring matching the mixing tank is installed on the outer side of the tank body of the mixing tank. The control component includes a rotating shaft, which is oriented left and right and rotatably connected to the base. A gear concentrically fixed with the rotating shaft is rotatably installed on the right side of the rotating shaft. The gear meshes with the gear ring. Ring grooves are provided on both the left and right sides of the rotating shaft. A spiral groove connecting the two ring grooves is provided in the middle of the rotating shaft. A guide plate is hinged at the connection of the spiral groove and the left and right ring grooves. The guide plate is hinged to the rotating shaft up and down. The guide plate is inclined along the end direction of the spiral groove and the other end abuts against the side wall of the ring groove. A spring piece is installed between the guide plate and the rotating shaft. A push rod is connected to the upper side of the left end of the sliding rod. A runner matching the ring groove and the spiral groove is rotatably installed on the lower right side of the right end of the push rod.

3. The smoke-suppressing asphalt mixing device according to claim 1, characterized in that: The blocking component includes a feed wheel, and a plurality of partition plates evenly distributed in a circumferential manner are fixed on the outer side of the feed wheel. The feed wheel is horizontally installed inside the feed hopper and rotatably connected to it. A feed bin matching the feed wheel and the partition plates is provided in the middle of the feed hopper. A motor is installed on the outer side of the feed bin, and the output end of the motor is drivingly connected to the feed wheel.

4. A smoke-suppressing asphalt mixing device according to claim 2, characterized in that: The cross bar is slidably connected to the sliding rod left and right, and a tension spring is installed between the sliding rod and the cross bar.

5. The smoke-suppressing asphalt mixing device according to claim 2, characterized in that: The control components are symmetrically distributed front and back, and the opening directions of the spiral grooves of the two rotating shafts are the same.

6. The smoke suppression asphalt mixing device according to claim 1, characterized in that: A discharge guiding hopper fixedly connected to the base is installed under the discharge port.

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