Oil bath heating device

Abstract

The utility model discloses an oil bath heating device, which relates to the technical field of heating devices, and comprises an oil bath heating container and a sample containing barrel used for containing samples, the oil bath heating container is filled with heat conduction oil, the sample containing barrel is arranged in the heat conduction oil of the oil bath heating container, a plurality of heating subareas are arranged in the oil bath heating container in the height direction, and the heating subareas are arranged in the oil bath heating container. A heater is arranged in each heating partition and can heat conduction oil in the corresponding heating partition, and when the modified asphalt is prepared, only the bottom of the oil bath heating container is heated, so that the added modifier is locally agglomerated in the asphalt, the compatibility is deteriorated, and the asphalt is locally aged; the heat conduction oil in each heating subarea is respectively heated by the heater, so that the temperature difference of the heat conduction oil in the oil bath heating container in the height direction is reduced, the mechanical property and the durability of the modified asphalt are improved, and the quality of the modified asphalt is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating device technical field, in particular to an oil bath heating device. BACKGROUND

[0002] In the preparation of modified asphalt in the room, heating and heat preservation treatment to asphalt is the basic experimental condition, usually to the indoor asphalt heating and heat preservation equipment has direct heating method, oil bath method, sand bath method, wherein the oil bath method because its heating uniformity is better, becomes the heating method for widely used in preparation modified asphalt, in actual operation, in order to facilitate the use of high-speed shearing emulsifier to stir modified asphalt when heating, the asphalt sample being stirred is generally placed in the slender sample bucket (the height-diameter ratio usually reaches 3:1), and the sample bucket is placed in the heat conducting oil and heated, Chinese utility model patent CN204841688U provides a magnetic type indoor rubber asphalt preparation equipment, the heat conducting oil in the oil bath heating tank is heated by the resistance heater, and then the heat conducting oil heats the asphalt in the sample bucket, but the resistance heater is arranged at the bottom of the oil bath heating tank, and the large height-diameter ratio makes the heat conducting oil in the oil bath heating tank have large temperature difference in the height direction, so that the mechanical properties and durability of the modified asphalt are reduced, and the quality of the modified asphalt is affected. SUMMARY

[0003] The utility model discloses a kind of oil bath heating devices, to solve the problems existing in the prior art described above, improve the mechanical properties and durability of modified asphalt, so as to improve the quality of modified asphalt.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a kind of oil bath heating device, including oil bath heating container and be used for loading sample sample bucket, the oil bath heating container is filled with heat conducting oil, the sample bucket is placed in the heat conducting oil of the oil bath heating container, multiple heating subareas are provided in the oil bath heating container in height direction, each described heating subarea is provided with heater, and the heater can heat the heat conducting oil in the heating subarea.

[0006] In some embodiments, the oil bath heating container top end is provided with cover body, through-hole is opened in the cover body, and the through-hole is used to pass through the sample bucket.

[0007] In some embodiments, at least two clamps are provided on the outer side wall close to the top end of the sample bucket, the clamps are supported on the top end of the outer side wall of the oil bath heating container or the cover body, to erect the sample bucket in the oil bath heating container.

[0008] In some embodiments, a limiting piece is arranged on the top of the outer wall of the oil bath heating container or the cover, and the limiting piece corresponds to a clamping piece on the sample bucket one by one, and the limiting piece can limit the circumferential rotation of the sample bucket.

[0009] In some embodiments, a base is further included, and the oil bath heating container is arranged on the base, and the position of the base relative to the ground is fixed.

[0010] In some embodiments, the heater is an electric heating jacket, the electric heating jacket is annular, and the electric heating jacket is sleeved in the cavity of the side wall of the oil bath heating container.

[0011] In some embodiments, the heater is an electric heating rod, the electric heating rod is immersed in the heat-conducting oil, and a plurality of heating rods are uniformly arranged in each heating area along the circumference of the sample bucket.

[0012] In some embodiments, the oil bath heating container comprises an outer wall and an inner wall, the outer wall and the inner wall form the cavity, and the outer wall of the oil bath heating container is made of a heat-insulating material.

[0013] In some embodiments, a temperature measuring device is arranged in each heating area to measure the temperature in each heating area.

[0014] In some embodiments, a controller is further included, and the controller is in signal connection with the temperature measuring device and the heater.

[0015] The utility model discloses relative to prior art has obtained following technical effect:

[0016] The oil bath heating device provided by the utility model, by setting a plurality of heating areas in the height direction of the oil bath heating container, a heater is arranged in each heating area, and the heater can heat the heat-conducting oil in the heating area, when preparing modified asphalt, only heating the bottom of the oil bath heating container can cause the modifier put into the asphalt to gather locally, deteriorate the compatibility and cause the local aging of the asphalt, thereby affecting the mechanical properties and durability of the asphalt, the heat-conducting oil in each heating area is heated respectively by the heater, so as to reduce the temperature difference of the heat-conducting oil in the height direction of the oil bath heating container, improve the mechanical properties and durability of the modified asphalt, and improve the quality of the modified asphalt. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without paying creative labor for the person skilled in the art.

[0018] Fig. 1 Figure 1 is a front view of the oil bath heating device according to an embodiment of the present application;

[0019] Fig. 2 Figure 2 is a top view of the oil bath heating device according to an embodiment of the present application;

[0020] In the figure: 1 - oil bath heating container; 11 - heating partition; 12 - heater; 121 - electric heating jacket; 13 - cover body; 14 - limiting piece; 15 - outer wall; 16 - inner wall; 2 - sample containing barrel; 21 - clamping piece; 3 - base; 4 - temperature measuring device; 5 - controller; 51 - display screen; 52 - control button; 6 - heat insulation plate; 7 - lifting handle; 8 - handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] The purpose of the present application is to provide an oil bath heating device to solve the problems in the prior art and improve the mechanical properties and durability of modified asphalt, thereby improving the quality of the modified asphalt.

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0024] The present application provides an oil bath heating device, as shown in Figs. 1-2 The present application provides an oil bath heating device, as shown in

[0025] In some embodiments of the utility model, as shown in Figs. 1-2 As shown in the figure, the number of heating partitions 11 is determined according to the height of the oil bath heating container 1 and the sample bucket 2, preferably, the number of heating partitions 11 is 2-4, when the height of the oil bath heating container 1 and the sample bucket 2 is small, two heating partitions 11 can be set, when the height of the oil bath heating container 1 and the sample bucket 2 is large, four heating partitions 11 can be set.

[0026] In some embodiments of the utility model, as shown in Figs. 1-2 As shown in the figure, the oil bath heating container 1 top is provided with cover 13, is set up in cover 13 with through -hole, through -hole is used for the sample bucket 2 passes through, by setting cover 13, can limit the position of sample bucket 2, avoid sample bucket 2 to overturn, still can improve the sealing property of oil bath heating container 1, reduce the heat loss of heat conducting oil.

[0027] In some embodiments of the utility model, as shown in Figs. 1-2 As shown in the figure, the diameter of through -hole is 1-3mm than the diameter of sample bucket 2 big, in order to reduce the heat loss of heat conducting oil simultaneously make sample bucket 2 pass through through -hole.

[0028] In some embodiments of the utility model, at least two clamping pieces 21 are arranged on the outer side wall near the top end of the sample bucket 2, the clamping pieces 21 are used to support on the top end of the outer side wall of the oil bath heating container 1, so as to erect the sample bucket 2 in the oil bath heating container 1, by setting the clamping pieces 21, the bottom of the sample bucket 2 and the bottom of the oil bath heating container 1 can be kept a gap, and the bottom of the sample bucket 2 is heated by the heat conducting oil in the gap.

[0029] In some embodiments of the utility model, as shown in Figs. 1-2 As shown in the figure, at least two clamping pieces 21 are arranged on the outer side wall near the top end of the sample bucket 2, the clamping pieces 21 are used to support on the cover 13 of the oil bath heating container 1, so as to erect the sample bucket 2 in the oil bath heating container 1, by setting the clamping pieces 21, the bottom of the sample bucket 2 and the bottom of the oil bath heating container 1 can be kept a gap, and the bottom of the sample bucket 2 is heated by the heat conducting oil in the gap.

[0030] In some embodiments of the utility model, a limiting piece 14 is arranged on the top end of the outer side wall of the oil bath heating container 1, the limiting piece 14 corresponds to the clamping piece 21 on the sample bucket 2 one by one, when the high-speed shearing emulsifier is used to stir the modified asphalt in the sample bucket 2, the limiting piece 14 can limit the circumferential rotation of the sample bucket 2, to avoid the sample bucket 2 rotating with the modified asphalt stirring and affecting the stirring effect of the modified asphalt.

[0031] In some embodiments of the utility model, as shown in Figs. 1-2As shown in the oil bath heating container 1, the cover 13 is provided with a limiting piece 14, the limiting piece 14 corresponds to the clamping piece 21 on the sample bucket 2, when the modified asphalt in the sample bucket 2 is stirred by the high-speed shearing emulsifier, the limiting piece 14 can limit the circumferential rotation of the sample bucket 2, and the sample bucket 2 is prevented from rotating with the modified asphalt stirring to affect the stirring effect of the modified asphalt.

[0032] In some embodiments of the utility model, as shown in Figs. 1-2 The clamping piece 21 is a clamping pile protruding from the outer wall of the top end of the sample bucket 2, and the limiting piece 14 is two iron columns protruding from the top surface of the cover 13. The two iron columns are arranged at intervals, and the interval between the two iron columns is just enough for the clamping pile to pass through. During the process of placing the sample bucket 2 in the oil bath heating container 1, the clamping pile passes through and is arranged in the interval between the two iron columns. The movement of the clamping pile is limited by the two iron columns, thereby limiting the circumferential rotation of the sample bucket 2.

[0033] In some embodiments of the utility model, as shown in Figs. 1-2 The number of clamping pieces 21 is three, and the number of limiting pieces 14 is three pairs of iron columns. The clamping pieces 21 and the limiting pieces 14 are uniformly distributed along the circumference of the sample bucket 2 to limit the circumferential rotation of the sample bucket 2.

[0034] In some embodiments of the utility model, as shown in Figs. 1-2 The oil bath heating device further includes a base 3, and the oil bath heating container 1 is arranged on the base 3. The position of the base 3 relative to the ground is fixed, thereby fixing the positions of the oil bath heating container 1 and the sample bucket 2 in the oil bath heating device. This avoids the movement or overturning of the sample bucket 2 or the oil bath heating container 1 when the modified asphalt in the sample bucket 2 is stirred by the high-speed shearing emulsifier.

[0035] In some embodiments of the utility model, as shown in Figs. 1-2 A heat insulation plate 6 is arranged between the base 3 and the oil bath heating container 1. The heat insulation plate 6 can reduce the heat transfer of the heat conduction oil in the oil bath heating container 1 along the base 3 outward.

[0036] In some embodiments of the utility model, as shown in Figs. 1-2 The heater 12 is an electric heating jacket 121. The electric heating jacket 121 is annular, and is sleeved in the cavity of the side wall of the oil bath heating container 1. The electric heating jacket 121 is made of alkali-free glass fiber and metal heating wire, and is used for precise temperature control heating of the oil bath heating container 1. The electric heating jacket 121 has the characteristics of fast heating and long service life. By sleeving the electric heating jacket 121 in the cavity of the side wall of the oil bath heating container 1, direct contact between the electric heating jacket 121 and the heat conduction oil is avoided to prevent the heat conduction oil from being ignited.

[0037] In some embodiments of the utility model, the heater 12 is an electric heating rod, the electric heating rod is immersed in the heat conducting oil, and a plurality of heating rods are evenly arranged in each heating partition 11 along the circumferential direction of the sample holding barrel 2, the electric heating rod is wrapped with an insulating material (such as magnesium oxide powder) inside, and the outside is a metal sleeve (stainless steel, copper, etc.), heat is evenly transferred to the surrounding heat conducting oil through the sleeve during heating, the temperature is controllable, and the temperature is prevented from exceeding the ignition point of the heat conducting oil to ignite the heat conducting oil.

[0038] In some embodiments of the utility model, as shown in Figs. 1-2 Each heating partition 11 is provided with four electric heating rods, which are evenly distributed along the circumferential direction of the sample holding barrel 2, so as to control the temperature in the circumferential direction of the sample holding barrel 2.

[0039] In some embodiments of the utility model, as shown in Figs. 1-2 The oil bath heating container 1 includes an outer wall 15 and an inner wall 16, the outer wall 15 and the inner wall 16 form a cavity, the cavity can accommodate the electric heating sleeve 121, the outer wall 15 of the oil bath heating container 1 is made of heat preservation and insulation material, heat loss in the oil bath heating container 1 through the outer wall 15 is reduced, on the one hand, it helps to maintain the temperature of the heat conducting oil in the oil bath heating container 1, on the other hand, it can avoid scalding of the staff on the outer wall of the oil bath heating container 1.

[0040] In some embodiments of the utility model, as shown in Figs. 1-2 A temperature measuring device 4 is arranged in each heating partition 11, so as to measure the temperature in each heating partition 11, thereby facilitating the staff to accurately grasp the temperature in each heating partition 11.

[0041] In some embodiments of the utility model, as shown in Figs. 1-2 The temperature measuring device 4 is a thermocouple, the minimum temperature measurement is not higher than room temperature, the maximum temperature measurement is not lower than 350 DEG C, and the temperature measurement accuracy is within 1 DEG C, so as to accurately measure the temperature of the heat conducting oil in each heating partition 11.

[0042] In some embodiments of the utility model, as shown in Figs. 1-2 The oil bath heating device further includes a controller 5, the controller 5 is signal connected with the temperature measuring device 4 and the heater 12, in the actual operation process, the temperature measuring device 4 measures the temperature in each heating partition 11, and transmits the temperature data to the controller 5, the controller 5 controls the heating power of the heater 12 in the corresponding heating partition 11 according to the temperature difference of each heating partition 11, thereby making the temperature distribution of the heat conducting oil in each heating partition 11 more uniform, reducing the temperature difference of the heat conducting oil in the height direction of the oil bath heating container 1, improving the mechanical properties and durability of the modified asphalt, and thereby improving the quality of the modified asphalt.

[0043] In some embodiments of the utility model, as shown in Figs. 1-2As shown, the heating partition 11 has two, when the measured temperature difference of the two heating partitions 11 exceeds 5℃, the heater 12 in the heating partition 11 with higher temperature is controlled to reduce the heating power or stop heating, and the heater 12 in the heating partition 11 with lower temperature is controlled to increase the heating power.

[0044] In some embodiments of the present application, as shown in Figs. 1-2 As shown, the temperature measuring device 4 further comprises a mercury thermometer, the temperature measuring point of the mercury thermometer is arranged at the central part in the height direction of the heat conducting oil, the temperature measuring range of the mercury thermometer is 25-280℃, the graduation value is 1℃, and the mercury thermometer has the characteristics of stability and reliability.

[0045] In some embodiments of the present application, as shown in Figs. 1-2 As shown, the controller 5 is arranged in the base 3 to reduce the volume occupied by the oil bath heating container 1, the controller 5 comprises a display screen 51 and control buttons 52, the display screen 51 can display the temperature measured by each temperature measuring device 4, and the temperature of each heater 12 is controlled by the control buttons 52, and in the heating process, the temperature average of the two heating partitions 11 measured is controlled to be not more than 4℃ than the temperature measured by the mercury thermometer.

[0046] In some embodiments of the present application, as shown in Figs. 1-2 As shown, a handle 7 is arranged at the top end of the outer side wall of the sample bucket 2, so as to facilitate the worker to grasp the handle 7 to move the sample bucket 2.

[0047] In some embodiments of the present application, as shown in Figs. 1-2 As shown, a handle 8 is arranged on the outer side wall of the oil bath heating container 1, so as to facilitate the worker to grasp the handle 8 to move the oil bath heating container 1.

[0048] The principle and implementation mode of the present application are described by applying specific examples in the present application, and the above embodiment is only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, according to the idea of the present application, the specific implementation mode and application range will be changed. In conclusion, the content of the present application should not be understood as the limitation of the present application.

Claims

1. An oil bath heating device, characterized by, The oil bath heating container is filled with heat-conducting oil, and the sample holding bucket is placed in the heat-conducting oil in the oil bath heating container.

2. The oil bath heating device of claim 1, wherein The oil bath heating container is filled with heat-conducting oil, and the sample holding bucket is placed in the heat-conducting oil in the oil bath heating container.

3. The oil bath heating device of claim 2, wherein At least two clamping pieces are arranged on the outer side wall near the top end of the sample holding bucket, and the clamping pieces are used to support the top end of the outer side wall of the oil bath heating container or the cover body, so as to support the sample holding bucket in the oil bath heating container.

4. The oil bath heating device of claim 3, wherein A limiting piece is arranged on the top end of the outer side wall of the oil bath heating container or the cover body, and the limiting piece corresponds to the clamping piece on the sample holding bucket one by one.

5. The oil bath heating device of claim 1, wherein The oil bath heating container is arranged on the base, and the position of the base relative to the ground is fixed.

6. The oil bath heating device of claim 1, wherein The heater is an electric heating jacket, which is annular and is sleeved in the cavity of the side wall of the oil bath heating container.

7. The oil bath heating device of claim 1, wherein The heater is an electric heating rod, which is immersed in the heat-conducting oil and is uniformly arranged in each heating partition along the circumference of the sample holding bucket.

8. The oil bath heating device of claim 6, wherein The oil bath heating container includes an outer wall and an inner wall, and the outer wall and the inner wall form the cavity.

9. The oil bath heating device of claim 1, wherein, A temperature measuring device is arranged in each heating partition to measure the temperature in each heating partition.

10. The oil bath heating device of claim 9, wherein, A controller is further included, which is signal connected with the temperature measuring device and the heater.

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