A rubber asphalt production equipment
By introducing a jacket structure and electromagnetic heating components into the rubber asphalt production equipment, combined with temperature sensors and thermal oil pumps, the problem of dust explosions caused by improper temperature control has been solved, achieving safe production and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI JINTIANDI MODIFIED ASPHALT CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-26
AI Technical Summary
Existing rubber asphalt equipment may cause rubber powder dust explosions if the temperature is not properly controlled when adding rubber powder, posing a production safety hazard.
It adopts a jacketed structure and electromagnetic heating components, and uses temperature sensors to monitor and control the temperature inside the mixing tank in real time. Combined with a heat transfer oil pump and insulation layer, it ensures that the temperature is within an appropriate range and avoids dust explosion.
Effectively controlling the temperature inside the mixing tank reduces the risk of rubber dust explosions, improves production safety, reduces raw material waste, and improves the working environment.
Smart Images
Figure CN224270845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of asphalt production equipment, and in particular to a production equipment for rubber asphalt. Background Technology
[0002] Rubberized asphalt is made by first processing waste tires into rubber powder, then combining them according to a certain coarse and fine gradation ratio, and finally reacting them with base asphalt under high temperature (above 200℃) with thorough mixing. Rubberized asphalt has properties such as high temperature stability, low temperature flexibility, aging resistance, fatigue resistance, and water damage resistance, making it a relatively ideal environmentally friendly pavement material. It is mainly used in stress-absorbing layers and surface layers in road structures.
[0003] Existing rubber asphalt equipment typically consists of mixing tanks. During production, base asphalt and rubber powder are first added to the mixing tank. However, if the temperature inside the tank is not properly controlled when adding rubber powder, rubber powder dust explosions can easily occur, posing significant production safety hazards.
[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content
[0005] The present invention aims to provide a rubber asphalt production equipment, which solves the problem of rubber powder dust explosion that can easily occur when rubber powder is added to a mixing tank if the temperature inside the tank is not properly controlled.
[0006] To achieve the above objectives, the solution provided by this utility model is as follows:
[0007] A rubber asphalt production apparatus includes a mixing tank and a tank cover disposed on top of the mixing tank; a jacket is provided between the inner wall and the outer wall of the mixing tank; and further includes:
[0008] An oil storage tank assembly, wherein the oil storage tank assembly is connected to the oil outlet of the jacket;
[0009] The first oil pipeline is connected to the oil inlet of the oil storage tank group and the jacket;
[0010] An electromagnetic heating assembly is connected to the first oil pipeline;
[0011] The first temperature sensor is inserted into the mixing tank through the tank lid.
[0012] Optionally, the electromagnetic heating assembly includes:
[0013] A heating coil, the heating coil being wound on the first oil pipeline;
[0014] A high-frequency heating machine, wherein the high-frequency heating machine is electrically connected to a heating coil.
[0015] Optionally, a second temperature sensor is provided on the first oil pipeline downstream of the electromagnetic heating assembly.
[0016] Optionally, the rubber asphalt production equipment further includes:
[0017] The first thermal oil pump has its input and output ends connected to the first oil pipeline.
[0018] Optionally, the oil storage tank group includes:
[0019] A transition tank, which is connected to the oil outlet of the jacket;
[0020] A heat transfer oil tank, wherein the heat transfer oil tank is connected to a first oil pipeline;
[0021] The second oil pipeline has its two ends connected to the transition tank and the first oil pipeline, respectively, and the connection between the second oil pipeline and the first oil pipeline is located upstream of the input end of the first heat transfer oil pump.
[0022] The first valve body is disposed on the first oil pipeline and is located upstream of the connection between the second oil pipeline and the first oil pipeline.
[0023] The second valve body is located on the second oil pipeline.
[0024] Optionally, the oil storage tank group further includes:
[0025] The third oil pipeline is connected to the second oil pipeline and the heat transfer oil tank.
[0026] The second thermal oil pump has its input and output ends connected to the third oil pipeline.
[0027] The third valve body is located on the third oil pipeline and is situated upstream of the input end of the second heat transfer oil pump.
[0028] Optionally, the outer wall of the mixing tank is provided with a first heat insulation layer.
[0029] Optionally, the tank cover is provided with an asphalt conveying pipe and a rubber powder conveying pipe, both of which are connected to the mixing tank body, and a smoke baffle is horizontally and movably inserted inside the rubber powder conveying pipe.
[0030] The beneficial effects of this utility model are as follows: This utility model provides a rubber asphalt production device. By setting a feeding platform above the feeding hopper of a bucket elevator, and setting an opening on the feeding platform that communicates with the feeding hopper, when the opening is covered with a box-type dust extraction hood, the dust generated during the feeding process can be drawn into the powder collection box by a dust extraction fan through a dust extraction pipe. This not only improves the production working environment and the health of production personnel, but also enables the collection of raw materials, thereby reducing the waste of raw materials, especially fillers. Attached Figure Description
[0031] Figure 1 This is a simplified structural diagram of the rubber asphalt production equipment provided by this utility model.
[0032] Figure 2 yes Figure 1 Enlarged view of part A in the middle.
[0033] Figure 3 yes Figure 1 Enlarged view of section B.
[0034] Figure 4 This is a top view of the smoke baffle.
[0035] Explanation of icon numbers:
[0036] 1-Agitator body; 101-Jacket;
[0037] 2-Oil storage tank group; 21-Transfer tank; 22-Heat transfer oil tank; 23-Second oil pipeline; 24-First valve body; 25-Second valve body; 26-Third oil pipeline; 27-Second heat transfer oil pump; 28-Third valve body;
[0038] 3-First oil pipeline;
[0039] 4-Electromagnetic heating assembly; 41-Heating coil; 42-High-frequency heating machine;
[0040] 5-First temperature sensor; 6-Second temperature sensor; 7-First heat transfer oil pump; 8-Tank cover; 9-First insulation layer; 10-Asphalt conveying pipe; 11-Rubber powder conveying pipe; 12-Smoke baffle; 13-Tie rod; 14-Return oil pipe; 15-Support part; 16-Second insulation layer. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0043] It should also be noted that when a component is referred to as "fixed to" or "attached to" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.
[0044] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0045] like Figures 1 to 4 As shown, this utility model provides a rubber asphalt production equipment, including a mixing tank 1, a tank cover 8, an oil storage tank group 2, a first oil delivery pipe 3, an electromagnetic heating component 4, and a first temperature sensor 5.
[0046] Specifically, the tank cover 8 is fixedly installed on the top of the mixing tank 1. A jacket 101 is provided between the inner and outer walls of the mixing tank 1. Heat transfer oil is introduced into the jacket 101 to raise the temperature inside the mixing tank 1, which can be used to heat the base asphalt and cause the base asphalt to react with the rubber powder. The oil storage tank group 2 stores the heat transfer oil required for asphalt production. In order to deliver the heat transfer oil in the oil storage tank group 2 to the jacket 101, the first oil supply pipe 3 is connected to the oil inlet of the oil storage tank group 2 and the jacket 101. In order to allow the heat transfer oil in the jacket 101 to flow back into the oil storage tank group 2, the oil outlet of the jacket 101 can be connected to the oil storage tank group 2 through the return oil pipe 14.
[0047] Specifically, the electromagnetic heating component 4 is connected to the first oil supply pipe 3 and is used to heat the first oil supply pipe 3, thereby heating the heat transfer oil flowing inside the first oil supply pipe 3 and raising the internal temperature of the mixing tank 1. The first temperature sensor 5 is inserted into the mixing tank 1 through the tank cover 8 and is used to collect the temperature inside the mixing tank 1. When adding rubber powder and base asphalt into the mixing tank 1 and during production, the production personnel can adjust the working power of the electromagnetic heating component 4 based on the temperature data collected by the first temperature sensor 5, thereby adjusting the temperature of the heat transfer oil fed into the jacket 101 and changing the temperature inside the mixing tank 1.
[0048] When adding rubber powder and base asphalt into the mixing tank 1, the rubber powder and base asphalt are added simultaneously. To avoid the problem of rubber powder dust explosion, the temperature inside the mixing tank 1 should not be too high during the addition process, and can be controlled at around 150℃. After all the rubber powder and base asphalt have been added, the working power of the electromagnetic heating component 4 is increased to further heat the heat transfer oil flowing in the first oil pipe 3, thereby adjusting the temperature inside the mixing tank 1 to above 200℃, so that the base asphalt and rubber powder can react.
[0049] Specifically, the first temperature sensor 5 can be an explosion-proof integrated temperature sensor, which has the advantages of reliable explosion-proof performance, suitable measurement range, stable signal transmission, and good protection performance.
[0050] Understandably, the number of electromagnetic heating components 4 can be set based on actual production needs.
[0051] Optionally, the electromagnetic heating assembly 4 includes a heating coil 41 and a high-frequency heater 42. The heating coil 41 is wound around the first oil delivery pipe 3, and the high-frequency heater 42 is electrically connected to the heating coil 41. When the high-frequency heater 42 is working, the high-frequency large current emitted by it flows to the heating coil 41, causing the heating coil 41 to generate an eddy current effect, which is used to quickly heat the first oil delivery pipe 3, so that the heat transfer oil transported in the first oil delivery pipe 3 is heated.
[0052] Optionally, the first oil pipeline 3 is covered with a second heat insulation layer 16, and the heating coil 41 is wound on the second heat insulation layer 16. The second heat insulation layer 16 may be an aluminum silicate heat insulation layer, which can reduce heat exchange between the first oil pipeline 3 and the outside environment.
[0053] Optionally, a second temperature sensor 6 is installed downstream of the electromagnetic heating assembly 4 on the first oil pipeline 3. The second temperature sensor 6 can be used to collect the temperature of the heat transfer oil after it has been heated by the electromagnetic heating assembly 4. The temperature data collected by the second temperature sensor 6 can be used as a reference. For example, based on production experience, if the temperature of the heat transfer oil after being heated by the electromagnetic heating assembly 4 is T1, the temperature inside the mixing tank 1 meets the temperature requirements for adding rubber powder and base asphalt. The temperature data collected by the second temperature sensor 6 also reaches T1. In addition, production personnel do not need to continue to adjust the working power of the electromagnetic heating assembly 4 until the temperature inside the mixing tank 1 changes, and then fine-tune the working power of the electromagnetic heating assembly 4. Therefore, the adjustment operation of the working power of the electromagnetic heating assembly 4 can be reduced.
[0054] Understandably, in order to facilitate production personnel in viewing the temperature data collected by the first temperature sensor 5 and the second temperature sensor 6, the first temperature sensor 5 and the second temperature sensor 6 can be electrically connected to the controller simultaneously, and the controller can be connected to a display, so that the temperature data collected by the first temperature sensor 5 and the second temperature sensor 6 can be displayed intuitively on the display.
[0055] Optionally, the rubber asphalt production equipment further includes a first thermal oil pump 7. The input and output ends of the first thermal oil pump 7 are connected to the first oil pipeline 3, ensuring that the thermal oil in the oil storage tank group 2 can be transported to the jacket 101 via the first oil pipeline 3.
[0056] Optionally, the oil storage tank group 2 includes a transition tank 21, a heat transfer oil tank 22, a second oil delivery pipe 23, a first valve body 24, and a second valve body 25. The transition tank 21 is connected to the oil outlet of the jacket 101. After heat exchange with the mixing tank 1, the heat transfer oil in the jacket 101 is first transported to the transition tank 21 via the return oil pipe 14. The heat transfer oil tank 22 stores heat transfer oil sufficient to meet the numerous heat demands of asphalt production enterprises. The heat transfer oil tank 22 is connected to the first oil delivery pipe 3. Before the mixing tank 1 is heated, the heat transfer oil in the heat transfer oil tank 22 is first transported to the jacket 101 via the first oil delivery pipe 3. The two ends of the second oil pipe 23 are connected to the transition tank 21 and the first oil pipe 3 respectively, and the connection between the second oil pipe 23 and the first oil pipe 3 is located upstream of the input end of the first heat transfer oil pump 7, so that the heat transfer oil in the transition tank 21 can be transported back to the jacket 101 through the second oil pipe 23 and the first oil pipe 3.
[0057] Since the heat transfer oil in the transition tank 21 carries residual heat, the heat transfer oil flowing back from the jacket 101 is first transported to the transition tank 21, and then transported back to the jacket 101 via the second oil pipe 23 and the first oil pipe 3. This can reduce the energy consumption of the electromagnetic heating component 4 and thus save energy.
[0058] The first valve body 24 is located on the first oil pipeline 3 and upstream of the connection between the second oil pipeline 23 and the first oil pipeline 3. It is used to control the heat transfer oil in the heat transfer oil tank 22 to be transported to the first oil pipeline 3. The second valve body 25 is located on the second oil pipeline 23. When the second valve body 25 is opened, the heat transfer oil in the transition tank 21 is transported to the first oil pipeline 3 through the second oil pipeline 23 for heating.
[0059] Optionally, the oil storage tank group 2 may also include a third oil pipeline 26, a second heat transfer oil pump 27, and a third valve body 28.
[0060] The third oil pipeline 26 is connected to the second oil pipeline 23 and the heat transfer oil tank 22. After the production of rubber asphalt is completed, the heat transfer oil in the transition tank 21, which has no waste heat recovery value, can be transported to the heat transfer oil tank 22 for centralized storage through the third oil pipeline 26. The input and output ends of the second heat transfer oil pump 27 are connected to the third oil pipeline 26, providing power for the transport of heat transfer oil in the transition tank 21 to the heat transfer oil tank 22. The third valve body 28 is located on the third oil pipeline 26 and is upstream of the input end of the second heat transfer oil pump 27. The third valve body 28 is used to control the transport of heat transfer oil to the heat transfer oil tank 22.
[0061] Optionally, the outer wall of the mixing tank 1 is provided with a first heat insulation layer 9, which can be a silicate heat insulation layer, which can reduce the heat loss of the jacket 101 and the mixing tank 1, so that the temperature inside the mixing tank 1 can be kept relatively stable and facilitate the temperature inside the mixing tank 1.
[0062] Optionally, the tank cover 8 is provided with an asphalt conveying pipe 10 and a rubber powder conveying pipe 11, both of which are connected to the mixing tank 1.
[0063] The asphalt delivery pipe 10 is connected to the base asphalt storage tank, so that the base asphalt can be transported from the base asphalt storage tank to the mixing tank 1 under the drive of the asphalt pump.
[0064] The rubber powder conveying pipe 11 can be sealed to the discharge port of the bucket elevator, and a smoke baffle 12 is horizontally and movably inserted inside the rubber powder conveying pipe 11. After feeding is finished, the smoke baffle 12 is fully horizontally inserted into the rubber powder conveying pipe 11, thereby blocking asphalt fumes from entering the bucket elevator during rubber asphalt production and preventing asphalt fumes from leaking from the feed port of the bucket elevator into the production workshop.
[0065] In order to ensure that the smoke baffle 12 is stably supported inside the rubber powder conveying pipe 11, the inner wall of the rubber powder conveying pipe 11 is provided with a support part 15.
[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A rubber asphalt production device, comprising a mixing tank body (1) and a tank cover (8) arranged at the top of the mixing tank body (1); a jacket (101) is arranged between the inner wall and the outer wall of the mixing tank body (1); characterized in that, Also includes: Oil storage tank group (2), wherein the oil storage tank group (2) is connected to the oil outlet of the jacket (101); The first oil pipeline (3) is connected to the oil inlet of the oil storage tank group (2) and the jacket (101); An electromagnetic heating assembly (4) is connected to the first oil pipeline (3); The first temperature sensor (5) is inserted into the mixing tank (1) by the tank cover (8).
2. The rubber asphalt production apparatus according to claim 1, characterized in that, The electromagnetic heating assembly (4) includes: Heating coil (41), the heating coil (41) is wound on the first oil pipeline (3); A high-frequency heating machine (42) is electrically connected to a heating coil (41).
3. The rubber asphalt production apparatus according to claim 1, characterized in that, A second temperature sensor (6) is provided on the first oil pipeline (3) downstream of the electromagnetic heating assembly (4).
4. The rubber asphalt production equipment according to claim 1, characterized in that, Also includes: The first thermal oil pump (7) has its input and output ends connected to the first oil pipeline (3).
5. The rubber asphalt production equipment according to claim 4, characterized in that, The oil storage tank group (2) includes: Transition tank (21), which is connected to the oil outlet of jacket (101); A heat transfer oil tank (22) is connected to a first oil pipeline (3); The second oil pipeline (23) is connected at both ends to the transition tank (21) and the first oil pipeline (3) respectively, and the connection between the second oil pipeline (23) and the first oil pipeline (3) is located upstream of the input end of the first heat transfer oil pump (7). The first valve body (24) is disposed on the first oil pipeline (3) and the first valve body (24) is located upstream of the connection between the second oil pipeline (23) and the first oil pipeline (3); The second valve body (25) is located on the second oil pipeline (23).
6. The rubber asphalt production equipment according to claim 5, characterized in that, The oil storage tank group (2) also includes: The third oil pipeline (26) is connected to the second oil pipeline (23) and the heat transfer oil tank (22); The second thermal oil pump (27) has its input and output ends connected to the third oil pipeline (26); The third valve body (28) is located on the third oil pipeline (26) and is located upstream of the input end of the second heat transfer oil pump (27).
7. The rubber asphalt production equipment according to claim 1, characterized in that, The outer wall of the mixing tank (1) is provided with a first heat insulation layer (9).
8. The rubber asphalt production equipment according to claim 1, characterized in that, The tank cover (8) is provided with an asphalt conveying pipe (10) and a rubber powder conveying pipe (11). Both the rubber powder conveying pipe (11) and the asphalt conveying pipe (10) are connected to the mixing tank (1), and a smoke baffle (12) is horizontally and movably inserted inside the rubber powder conveying pipe (11).