阅读说明：本技术 钢渣试件测定仪和测定方法 (Steel slag test piece determinator and determination method ) 是由 唐秀明 张彩利 徐玉峰 唐亨山 常庆喜 陈海波 李剑峰 刘一鸣 甄军计 卫永富 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种钢渣试件测定仪,包括罐体,设置在罐体底部的承料台,设置在承料台上的重量传感器和超声振动器；设置在所述的罐体的下半部侧壁上的加热机构,设置在所述的罐体上半部侧壁上的制冷机构,以及设置于罐体顶部的进液机构,真空接口、增减压接口和测试接口。本发明的测定仪,通过合理布局加热机构和制冷机构,可实现内部温度的快速切换,利用承料台的震动对钢渣试件进行搅拌混合,然后同真空、加压和降压等条件,辅以各种进液控制,可对自然环境进行快速模拟,为后续钢渣试件的性能测试带来便利,大大缩短测试周期,提高测试效率。(The invention discloses a steel slag test piece determinator, which comprises a tank body, a material bearing platform arranged at the bottom of the tank body, a weight sensor and an ultrasonic vibrator arranged on the material bearing platform, wherein the weight sensor is arranged on the material bearing platform; the heating mechanism that sets up on the lower half lateral wall of the jar body, set up and be in the first lateral wall of the jar body on the refrigeration mechanism to and set up in the feed liquor mechanism at jar body top, vacuum interface, pressure increasing and reducing interface and test interface. The tester can realize the rapid switching of the internal temperature by reasonably arranging the heating mechanism and the refrigerating mechanism, stir and mix the steel slag test piece by using the vibration of the material bearing platform, and then control the natural environment by using various liquid inlets under the conditions of vacuum, pressurization, depressurization and the like, thereby bringing convenience for the performance test of the subsequent steel slag test piece, greatly shortening the test period and improving the test efficiency.)

1. A steel slag test piece determinator is characterized in that: the ultrasonic vibration tank comprises a tank body, a material bearing platform arranged at the bottom of the tank body, a weight sensor and an ultrasonic vibrator arranged on the material bearing platform; the heating mechanism that sets up on the lower half lateral wall of the jar body, set up and be in the first lateral wall of the jar body on the refrigeration mechanism to and set up in the feed liquor mechanism at jar body top, vacuum interface, pressure increasing and reducing interface and test interface.

2. The steel slag test piece determinator of claim 1, wherein: the liquid inlet mechanism comprises a water inlet pipe and a liquid spraying ring positioned above the material bearing platform.

3. The steel slag test piece determinator of claim 1, wherein: the inner side of the bottom of the side wall of the tank body is fixedly provided with a plurality of microcrystalline nano heating plates, and the outer side of the side wall of the lower half part of the tank body is provided with a heat insulation layer.

4. The steel slag test piece determinator of claim 3, wherein: the heat-insulating layer is made of aerogel heat-insulating material.

5. The steel slag test piece determinator of claim 1, wherein: the refrigerating mechanism on the side wall of the upper half part of the tank body comprises a TEC refrigerating body, radiating fins respectively contacted with two side faces of the TEC refrigerating body and a radiating fan positioned outside the tank body.

6. The steel slag test piece determinator of claim 5, wherein: the tank body is made of stone-resistant metal.

7. The steel slag test piece determinator of claim 1, wherein: and a disturbing fan is also arranged at the top of the inner side of the tank body.

8. A method for measuring a steel slag test piece is characterized by comprising the following steps of,

1) injecting water into the material collector to enable the steel slag test piece to be filled and soaked by liquid, and starting the ultrasonic vibrator to work;

2) vacuumizing the steel slag test piece to-0.05 ~ -0.1Mpa, keeping the vacuum degree for the first preset time,

3) heating the steel slag test piece to 80-100 ℃ for the second preset time;

4) pressurizing to make the in-vivo pressure of the steel slag aggregate rapid measuring instrument reach 0.9MPa and keep for a third preset time,

5) rapidly cooling the steel slag test piece from 80-100 ℃ to-25-35 ℃, rapidly recovering the original state of the steel slag test piece, and keeping the fourth preset time,

6) Repeating the steps 1) to 5) for a preset number of times to promote complete stabilization of the activity of the steel slag test piece.

Technical Field

The invention belongs to the technical field of machinery, and particularly relates to a steel slag test piece determinator and a determination method.

Background

Asphalt concrete is generally composed of asphalt and mineral aggregates (coarse aggregate, fine aggregate and filler), in the technical field, the commonly used asphalt is mainly SBS modified asphalt, the commonly used aggregate is mainly limestone, basalt, granite and the like, the commonly used filler is limestone ground mineral powder, slaked lime, cement and the like, and the asphalt concrete composed of the materials can not effectively solve two contradictions: firstly, the contradiction between high temperature stability and fatigue resistance and low temperature crack resistance; secondly, the contradiction between the surface property (skid resistance) and the durability of the asphalt concrete.

The steel slag is industrial waste formed after liquid slag generated in the converter steelmaking process is cooled and solidified. In order to reduce environmental pollution, steel slag has been tried in cement concrete pavements of road engineering, but the steel slag is used in asphalt concrete, common asphalt or SBS modified asphalt is generally adopted, and no example of mixing the steel slag as aggregate with rubber asphalt to prepare steel slag rubber asphalt concrete exists in the industry at present.

CN 101967047A discloses a steel slag rubber asphalt concrete and a preparation method thereof, wherein steel slag is selected as a coarse aggregate, rubber asphalt is selected as a binder, and the concrete further comprises a fine aggregate and a filler; the mineral aggregate grading composition of the asphalt mixture is a coarse aggregate graded broken skeleton compact type, the proportion of the rubber asphalt and the mineral aggregate is determined by a Marshall compaction test according to the volume parameter of a Marshall test piece, and is comprehensively determined after the pavement performance verification such as high-temperature anti-rutting capability, water damage resistance and the like.

However, for steel slag from different sources, in order to obtain more proportioning components, sampling and performance experiments are required after a test piece is prepared, but the existing experiment period is long, and the requirements of production and construction cannot be well met.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a steel slag test piece determinator which can effectively and quickly test performance parameters of a steel slag test piece.

The invention is realized by the following technical scheme:

a steel slag test piece determinator comprises a tank body, a material bearing platform arranged at the bottom of the tank body, a weight sensor and an ultrasonic vibrator arranged on the material bearing platform; the heating mechanism that sets up on the lower half lateral wall of the jar body, set up and be in the first lateral wall of the jar body on the refrigeration mechanism to and set up in the feed liquor mechanism at jar body top, vacuum interface, pressure increasing and reducing interface and test interface.

In the above technical scheme, the liquid inlet mechanism comprises a water inlet pipe and a liquid spraying ring located above the material bearing platform.

In the technical scheme, a plurality of microcrystalline nano heating plates are fixedly arranged on the inner side of the bottom of the side wall of the tank body, and a heat insulation layer is arranged on the outer side of the side wall of the lower half part of the tank body.

In the technical scheme, the heat-insulating layer is made of aerogel heat-insulating material.

In the above technical scheme, the refrigeration mechanism on the side wall of the upper half part of the tank body comprises a TEC refrigeration body, cooling fins respectively in contact with two side faces of the TEC refrigeration body, and a cooling fan located outside the tank body.

In the technical scheme, the tank body is made of stone-resistant metal.

In the technical scheme, a disturbing fan is further arranged at the top of the inner side of the tank body.

A method for measuring a steel slag test piece comprises the following steps,

1) injecting water into the material collector to enable the steel slag test piece to be filled and soaked by liquid, and starting the ultrasonic vibrator to work;

2) vacuumizing the steel slag test piece to-0.05 ~ -0.1Mpa, keeping the vacuum degree for the first preset time,

3) heating the steel slag test piece to 80-100 ℃ for the second preset time;

4) pressurizing to make the in-vivo pressure of the steel slag aggregate rapid measuring instrument reach 0.9MPa and keep for a third preset time,

5) rapidly cooling the steel slag test piece from 80-100 ℃ to-25-35 ℃, rapidly recovering the original state of the steel slag test piece, and keeping the fourth preset time,

6) Repeating the steps 1) to 5) for a preset number of times to promote complete stabilization of the activity of the steel slag test piece.

The invention has the advantages and beneficial effects that:

the tester can realize the rapid switching of the internal temperature by reasonably arranging the heating mechanism and the refrigerating mechanism, stir and mix the steel slag test piece by using the vibration of the material bearing platform, and then control the natural environment by using various liquid inlets under the conditions of vacuum, pressurization, depressurization and the like, thereby bringing convenience for the performance test of the subsequent steel slag test piece, greatly shortening the test period and improving the test efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a steel slag test piece tester of the invention.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.