Self-cleaning asphalt mixture mixing kettle

By designing a self-cleaning asphalt mixing pot, the inner wall of the mixing pot is automatically cleaned. Combined with a nano-coating and bio-based cleaning agent, the problem of time-consuming and labor-intensive manual cleaning is solved, achieving efficient and environmentally friendly cleaning results.

CN224531393UActive Publication Date: 2026-07-21HENAN JIUYI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN JIUYI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The cleaning of existing asphalt mixing plants mainly relies on manual labor, which is time-consuming, labor-intensive, and easily damages the plant walls, affecting service life and mixing uniformity.

Method used

A self-cleaning asphalt mixing pot was designed, which uses a spray pipe and nozzle to spray cleaning agent, and automatically cleans it in combination with the mixing mechanism. It is equipped with a filter recovery mechanism to realize the recycling of cleaning agent. Bio-based cleaning agent is used and an anti-stick nano coating is sprayed on the inner wall of the mixing pot to reduce the asphalt adhesion rate.

Benefits of technology

It achieves automated cleaning, saves manpower, reduces labor intensity, avoids damage to the pot wall, improves cleaning efficiency, reduces waste of cleaning agents, and meets environmental protection requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to road engineering raw material test research technical field, concretely relates to a self -cleaning formula asphalt mixture mixing kettle. Including agitator, base, support frame that sets up on the base and the operation frame that sets up at the top of support frame, be equipped with screw rod elevating system in support frame, the both sides of agitator are installed on screw rod elevating system through the shaft, install the liquid injection pipe on the inner wall of pot cover, install a plurality of spray heads that spray in the inner wall of agitator on the liquid injection pipe, the one side of base is equipped with filter recovery mechanism, connect through liquid transfer pipe between filter recovery mechanism and liquid injection pipe, be equipped with liquid transfer pump on liquid transfer pipe. The utility model relates to a cleaning system that liquid injection pipe, spray head, liquid transfer pump etc. are formed, combines the function of agitating mechanism, can automatically clean the inner wall of agitator, need not manual cleaning, greatly save manpower and time, reduce the labor intensity of test personnel, also avoid the scratch damage that the pot wall can cause when manual cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of road engineering raw material testing and research technology, specifically to a self-cleaning asphalt mixing pot. Background Technology

[0002] Asphalt mixtures are commonly used as basic construction materials, raw materials, and fuels, and are widely used in transportation, construction, water conservancy projects, and various industries. In the preparation of asphalt mixtures, asphalt mixers are commonly used to mix the mixtures. (Refer to...) Figure 1 Existing related technologies include a base, a mixing pot, a mixing pot lifting device, a mixing device, and a mixing device drive system. The mixing device is installed at the output end of the mixing device drive system, the mixing pot is located below the mixing device, and the mixing pot lifting device is installed on the base to drive the mixing pot to rise and fall.

[0003] Regarding the aforementioned technologies, the mixing pot needs to be cleaned after the asphalt mixture is mixed. The cleaning of the traditional mixing pot mainly relies on manual labor, which is not only time-consuming and labor-intensive, increasing the labor intensity of the test personnel, but also may cause scratch damage to the pot wall during manual cleaning, affecting the service life of the mixing pot and the uniformity of mixing. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a self-cleaning asphalt mixing planter to solve the problems mentioned in the background section.

[0005] To achieve the above technical objectives, this utility model proposes the following technical solution: a self-cleaning asphalt mixture mixing pot, comprising a mixing pot, a base, a support frame mounted on the base, and an operating frame mounted on top of the support frame. A screw lifting mechanism is installed inside the support frame. Both sides of the mixing pot are mounted on the screw lifting mechanism via rotating shafts. A pot lid is located at the bottom of the operating frame, and a mixing mechanism is installed inside the pot lid. A spray pipe is installed on the inner wall of the pot lid, and several nozzles are installed on the spray pipe to spray onto the inner wall of the mixing pot. A filtration and recovery mechanism is located on one side of the base. The filtration and recovery mechanism is connected to the spray pipe via a delivery pipe, and a delivery pump is installed on the delivery pipe.

[0006] Furthermore, a discharge tray is provided on the base and on one side of the mixing pot.

[0007] Furthermore, the filtration and recycling mechanism includes a recycling bin and a filter element. The filter element includes a filter cylinder, with a first filter screen fixedly connected to the bottom of the filter cylinder. A step is provided on the inner wall of the filter cylinder above the first filter screen, and a second filter screen is provided on the step. A protrusion is provided on the top of the filter cylinder that is embedded in the upper edge of the recycling bin.

[0008] Furthermore, an arc-shaped groove is provided above the protrusion.

[0009] Furthermore, the aperture of the first filter screen is smaller than that of the second filter screen, and the filter cylinder wall has filter holes with the same aperture as the first filter screen.

[0010] Furthermore, an L-shaped handle is slidably mounted on any of the rotating shafts, and a snap-fit ​​component is mounted on the lead screw lifting mechanism, with one end of the L-shaped handle snapped onto the snap-fit ​​component.

[0011] Furthermore, the inner wall of the mixing vessel is coated with an anti-stick nano-coating.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention, through a cleaning system composed of a spray pipe, nozzle, and pump, combined with the action of a stirring mechanism, can automatically clean the inner wall of the mixing pot without manual cleaning, greatly saving manpower and time, reducing the labor intensity of experimental personnel, and avoiding scratch damage to the pot wall that may be caused by manual cleaning; a filtration and recovery mechanism is set up to filter and recover the used cleaning agent, realizing the recycling of the cleaning agent, reducing waste of the cleaning agent, and using recyclable and environmentally friendly solvents, such as bio-based cleaning agents, which is more environmentally friendly and meets the requirements of green production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of another view of the present invention;

[0015] Figure 3 This is an exploded view of the filtration and recovery mechanism of this utility model.

[0016] In the diagram, 1. Mixing pot; 2. Base; 3. Support frame; 4. Operating frame; 5. Screw lifting mechanism; 6. Rotating shaft; 7. Pot lid; 8. Mixing mechanism; 9. Spray pipe; 10. Nozzle; 11. Filtration and recovery mechanism; 111. Recovery bucket; 112. Filter cylinder; 113. First filter screen; 114. Step; 115. Second filter screen; 116. Protrusion; 117. Arc groove; 12. Infusion pipe; 13. Infusion pump; 14. Discharge tray; 15. L-shaped handle; 16. Snap-fit ​​component. Detailed Implementation

[0017] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] The self-cleaning asphalt mixing pot provided by this utility model includes a mixing pot 1, a base 2, a support frame 3 mounted on the base 2, and an operating frame 4 mounted on top of the support frame 3. A screw lifting mechanism 5 is installed inside the support frame 3. The two sides of the mixing pot 1 are mounted on the screw lifting mechanism 5 via rotating shafts 6. An anti-stick nano-coating is sprayed onto the inner wall of the mixing pot 1 and the mixing mechanism 8. The nano-coating can be a PTFE / Teflon and silicon carbide composite coating, reducing asphalt adhesion and making cleaning easier. A pot lid 7 is located at the bottom of the operating frame 4, and a stirring mechanism is installed inside the pot lid 7. The mixing mechanism 8 has a ring-shaped high-temperature resistant sealing gasket that can be fixed to the bottom of the lid 7. When the lid 7 comes into contact with the mixing pot 1, it ensures its sealing performance and prevents the cleaning liquid from coming out. A spray pipe 9 is installed on the inner wall of the lid 7. Several nozzles 10 are installed on the spray pipe 9 to spray onto the inner wall of the mixing pot 1. A filter recovery mechanism 11 is provided on one side of the base 2. The filter recovery mechanism 11 is connected to the spray pipe 9 through a delivery pipe 12. A delivery pump 13 is provided on the delivery pipe 12. The delivery pump 13 outputs a recyclable and environmentally friendly solvent, such as a bio-based cleaning agent.

[0019] like Figure 1 and 2 As shown, the spray pipe 9 has a ring structure and is installed on the inner wall of the pot lid. Multiple nozzles 10 spray onto the inner wall of the mixing pot 1, which can fully cover the inner wall of the mixing pot 1. Combined with the stirring action of the stirring mechanism 8, the cleaning agent is fully in contact with the inner wall, which improves the cleaning effect and ensures that the inner wall of the mixing pot 1 is clean, avoiding residual materials from affecting the quality of the next mixing. The asphalt mixture in the mixing pot 1 is mixed by controlling the screw lifting mechanism 5 to rise and fall and the mixing mechanism 8 to rotate via the control buttons on the operating frame 4. Simultaneously, the operating frame 4 has buttons for controlling the on / off switch of the infusion pump 13, and a cleaning time can be set on the operating frame 4. When the set cleaning time is reached, the infusion pump 13 automatically shuts off. After mixing is complete, the asphalt mixture in the mixing pot 1 is poured out. Then, the screw lifting mechanism 5 is activated via the buttons on the operating frame 4 to raise the mixing pot 1, causing it to contact the mixing cover 7. The screw lifting mechanism 5 is then closed, and the mixing mechanism 8 and the infusion pump 13 are activated. The infusion pump 13 sprays cleaning agent into the mixing pot 1. The cleaning agent washes off the attached substances on the wall. At the same time, the bio-based cleaning agent comes into contact with asphalt and other asphalt mixtures. Through the synergistic effect of "surface-active emulsification-enzymatic hydrolysis of macromolecules-penetration swelling", the bio-based cleaning agent can not only efficiently remove asphalt residues in the mixing pot and on the mixing mechanism 8, but also take into account environmental protection and equipment protection. The stirring action of the mixing mechanism 8 can make the bio-based cleaning agent and the asphalt mixture come into better contact. After cleaning, the infusion pump 13 and the mixing mechanism 8 are turned off. The screw lifting mechanism 5 is started to drive the mixing pot 1 to a certain position. Then the mixing pot 1 is rotated to pour the cleaning agent and asphalt mixture in the mixing pot 1 into the filter recovery mechanism 11. Then the position of the mixing pot 1 is restored, waiting for the next use.

[0020] A discharge tray 14 is provided on the base 2 and on one side of the mixing pot 1.

[0021] like Figure 1 As shown, the discharge tray 14 supports the outer wall of the mixing pot 1, making it convenient to pour out the asphalt mixture in the mixing pot 1 after mixing.

[0022] The filtration and recovery mechanism 11 includes a recovery tank 111 and a filter element. The recovery tank 111 is connected to the spray pipe 9 via a delivery pipe 12 to reuse the filtered cleaning agent. The filter element includes a filter cylinder 112. A first filter screen 113 is fixed to the bottom of the filter cylinder 112. A step 114 is provided inside the filter cylinder 112 and above the first filter screen 113. A second filter screen 115 is provided on the step 114. A protrusion 116 is provided at the top of the filter cylinder 112 and is embedded in the upper edge of the recovery tank 111. The protrusion 116 is used to fit the filter cylinder 112 into the recovery tank 111. The aperture of the first filter screen 113 is smaller than that of the second filter screen 115. The cylinder wall of the filter cylinder 112 has filter holes with the same aperture as the first filter screen 113. The second filter screen 115 is used to filter out large particles, and the first filter screen 113 is used to filter out small particles. The use of a double-layer filter screen can better remove particles in the cleaning agent and facilitate the reuse of the cleaning agent.

[0023] like Figure 3 As shown, in this embodiment, the cleaning agent and asphalt mixture in the mixing pot 1 are poured into the filter cylinder 112. The solid asphalt mixture in the cleaning agent is filtered out by the second filter screen 115 and the first filter screen 113. The filtered cleaning agent is collected in the recycling tank 111 and can be reused through the infusion pump 13 and the infusion pipe 12. After filtering the cleaning agent, the filter element can be taken out from the recycling tank 111, and then the second filter screen 115 can be taken out from the filter cylinder 112 to facilitate the pouring out of the particles in the first filter screen 113.

[0024] An L-shaped handle 15 is slidably mounted on any of the rotating shafts 6, and an elastic snap-fit ​​16 is mounted on the screw lifting mechanism 5. One end of the L-shaped handle 15 is snapped onto the snap-fit ​​16. In this embodiment, the snap-fit ​​16 is mounted on the screw of the screw lifting mechanism 5 through a screw nut, and can be raised and lowered along with the stirring pot 1.

[0025] like Figure 1As shown, the other end of the L-shaped handle 15 is slidably mounted on the axial position of the rotating shaft 6. During the lifting or stirring of the mixing pot 1, the other end of the L-shaped handle 15 is locked on the locking member 16 to limit the mixing pot 1 and prevent the mixing pot 1 from rotating. When it is necessary to pour out the asphalt mixture or cleaning agent, the L-shaped handle 15 can be driven to push towards the mixing pot 1, so that one end of the L-shaped handle 15 is disengaged from the locking member 16. Then, as needed, the mixing pot 1 can be flipped over by the L-shaped handle 15 to pour out the asphalt mixture or cleaning agent.

[0026] Operating principle: After mixing, the asphalt mixture is poured out. Using the buttons on the operating frame 4, the screw lifting mechanism 5 is activated, causing the mixing pot 1 to rise until it contacts the lid 7. The screw lifting mechanism 5 is then closed, and the mixing mechanism 8 and the infusion pump 13 are activated. The infusion pump 13 sprays the cleaning agent from the recovery tank 111 through the nozzle 10 on the spray pipe 9 onto the inner wall of the mixing pot 1 and the mixing mechanism 8, washing away the substances adhering to them. After cleaning, the infusion pump 13 and... The mixing mechanism 8 starts the screw lifting mechanism 5 to lower the mixing pot 1 to a certain position. The mixing pot 1 is flipped over by the L-shaped handle 15, and the cleaning agent and residual asphalt mixture in the mixing pot 1 are poured into the filtration and recovery mechanism 11. The cleaning agent and residual material are filtered through a double layer. The filtered cleaning agent enters the recovery tank 111 for collection. It can be reused by the infusion pump 13 and the infusion pipe 12. After that, the filter element can be taken out from the recovery tank 111, the second filter screen 115 can be taken out, and the particulate matter in the first filter screen 113 can be poured out.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A self-cleaning asphalt mixing planter, comprising a mixing plant (1), a base (2), a support frame (3) mounted on the base (2), and an operating frame (4) mounted on top of the support frame (3), wherein a screw lifting mechanism (5) is provided inside the support frame (3), and the two sides of the mixing plant (1) are mounted on the screw lifting mechanism (5) via rotating shafts (6), and a lid (7) is provided at the bottom of the operating frame (4), wherein a mixing mechanism (8) is provided inside the lid (7), characterized in that: The inner wall of the pot lid (7) is equipped with a spray pipe (9), and a number of nozzles (10) are installed on the spray pipe (9) to spray onto the inner wall of the mixing pot (1). A filter recovery mechanism (11) is provided on one side of the base (2). The filter recovery mechanism (11) is connected to the spray pipe (9) through a delivery pipe (12), and a delivery pump (13) is provided on the delivery pipe (12).

2. The self-cleaning asphalt mixing planter according to claim 1, characterized in that: A discharge tray (14) is provided on the base (2) and on one side of the mixing pot (1).

3. The self-cleaning asphalt mixing planter according to claim 1, characterized in that: The filtration and recycling mechanism (11) includes a recycling bin (111) and a filter element. The filter element includes a filter cylinder (112). A first filter screen (113) is fixedly connected to the bottom of the filter cylinder (112). A step (114) is provided inside the filter cylinder (112) and above the first filter screen (113). A second filter screen (115) is provided on the step (114). A protrusion (116) is provided at the top of the filter cylinder (112) and embedded in the upper edge of the recycling bin (111).

4. The self-cleaning asphalt mixing planter according to claim 3, characterized in that: An arc-shaped groove (117) is provided above the protrusion (116).

5. The self-cleaning asphalt mixing planter according to claim 3, characterized in that: The aperture of the first filter screen (113) is smaller than that of the second filter screen (115), and the filter cylinder (112) has filter holes with the same aperture as the first filter screen (113) on its cylinder wall.

6. The self-cleaning asphalt mixing planter according to claim 3, characterized in that: An L-shaped handle (15) is slidably mounted on any of the rotating shafts (6), and a snap-fit ​​component (16) is mounted on the screw lifting mechanism (5). One end of the L-shaped handle (15) is snapped onto the snap-fit ​​component (16).

7. The self-cleaning asphalt mixing planter according to claim 1, characterized in that: The inner wall of the mixing pot (1) and the outer wall of the mixing mechanism (8) are both coated with an anti-stick nano-coating.