CN2263788Y

CN2263788Y - Asphalt automatic softening point analyzer

Info

Publication number: CN2263788Y
Application number: CN 95241131
Authority: CN
Inventors: 张跃军
Original assignee: Shuyang County Intelligent Instrument & Meter Inst Jiangsu Prov
Current assignee: Shuyang County Intelligent Instrument & Meter Inst Jiangsu Prov
Priority date: 1995-12-22
Filing date: 1995-12-22
Publication date: 1997-10-01
Anticipated expiration: 2005-12-22

Abstract

The utility model relates to an asphalt automatic softening point analyzer, which is an instrument used for identifying the viscosity and the hardiness of the asphalt by analyzing the softening point of various viscous asphalt materials which are used for paving highways in the field of highway construction. The utility model is composed of a computer control host, a photoelectric detector, a heating stirrer, a temperature sensing probe, etc., wherein, the heating stirrer is composed of a pair of electrothermal rings and a stirring rotor; the photoelectric detector is composed of main parts which are a prefocus lamp and a photosensitive receiver tube. Test pieces can be tested full automatically under the control of a computer, and besides, the utility model can achieve the automatic control required by a key problem contract; the warming speed is 5 +/-0.5 DEG C per minute; the recording of the temperature of the softening point can be accurate to 0.1 DEG C.

Description

The automatic softening point apparatus of pitch

The utility model relates to the highway structure field, is a kind of thickness petroleum bitumen of measuring the usefulness of paving the way that is applicable to, the softening point of various asphalt materials such as thickness shale tar pitch, hard cherry coal pitch is to identify pitch viscosity, stable on heating instrument.

Both at home and abroad in the highway construction to the mensuration that adopts the pitch of paving the way the to carry out softening point program that is absolutely necessary, because the softening point of pitch has reflected the quality of pitch, if measure the deviation that inaccurate meeting causes the road-making material blend ratio, can cause returning oil and softening mobile of oil circuit summer, can produce the crack winter, so that road is scrapped too early, directly has influence on the making quality of oil circuit.And the present both at home and abroad mensuration to asphalt softening point generally adopts " ball and ring method ", this method is to make thermal source with the flame or the electric furnace of the living lamp of benzene, from watering a glass external heating water-bath sample, so it is main by regulating the programming rate of controlling tested sample manually, thereby be difficult to guarantee that heating rate is the requirement of 5 ± 0.5 ℃/min in the national sector standard asphalt test code, and because the operator falls instantaneous temperature when reaching predetermined distance as the test result of softening point temperature with steel ball on the range estimation sample, so the human factor influence is big, also cannot say for sure the repeatability and the stability of confirmatory test, thereby existing means of testing can not satisfy the modern highway requirements on Construction.Ministry of Communications is with the part in " development of the automatic softening point apparatus of pitch " conduct " eight or five " the national science and technology brainstorm subject " road asphalt and the research of asphalt pavement performance " for this reason, requiring this instrument to control heating rate automatically is 5 ± 0.5 ℃/min, shows automatically or write down softening point temperature to be accurate to 0.1 ℃.

The purpose of this utility model provides the automatic softening point apparatus of a kind of pitch, is 5 ± 0.5 ℃/min to reach automatic control heating rate, show automatically or the record softening point temperature, and accurately to 0.1 ℃ subject study target.

The utility model mainly is made up of parts such as computer main control system, photoelectric detection system, heating stirrer and temperature-sensing probes.

Now provide accompanying drawing with its technical characterictic that elaborates:

Accompanying drawing 1 is the utility model computer main control system Facad structure synoptic diagram

Accompanying drawing 2 is the utility model computer main control system structure synoptic diagram

Accompanying drawing 3 is the Facad structure synoptic diagram of the utility model heating stirrer and photoelectric detection system

Accompanying drawing 4 is the utility model heating stirrer and photoelectric detection system back partial structurtes synoptic diagram

Accompanying drawing 5 is put the structural representation of top plate position for the sample vessel

Accompanying drawing 6 falls to depositing the structural representation of laminate position for sample

Fig. 1 is a display panel before the computer main control system, 2 is computer main control system rear panel, 3 are the heating Connection Block, 4 is the temperature-sensing probe Connection Block, 5 is the photoelectricity Connection Block, 6 is fuse holder, 7 is attaching plug, 8 is photoelectricity worktable front panel, 9 is the electric machine speed regulation knob, 10 is spot light lamp bulb, 11 is beaker, 12 is main heating collar, 13 for paying heating collar, 14 is the heating collar binding post, 15 is temperature-sensing probe, 16 are the beaker lid, 17 is top plate, 18 is lower plywood, 19 is photosensitive receiving tube, 20 is stirring rotator, 21 is rotary pole, 22 is direct current generator, 23 for stirring switch, 24 is photoelectricity worktable rear panel, 25 is sample ring, 26 is steel ball, 27 is locating ring, 28 is sample

For clearly narrating technical characterictic of the present utility model, explain earlier relevant Test sample was placed standard (asking for an interview accompanying drawing 5,6) when asphalt softening point was measured, The tested pitch sample of regulation is inserted two sample ring 25 of same level in the standard In, sample ring places again in the locating ring 27, and steel ball 26 directly is pressed in sample On, the hole place that locating ring is positioned at top plate 17 central parts works as sample When progressively softening with the temperature rising, its sample is subjected to the pressure of steel ball then from sample ring In to deviate to fall into top plate predetermined distance plate be the lower floor of 24.4mm, this The temperature of moment then is the pitch sample softening point temperature of surveying. The utility model Key technology be: heating source and Photoelectric Detection in its design has been used evenly Device, and by computer control, automatically record, demonstration. Its evenly interior heating The source is finished by heating stirrer spare, and heating stirrer spare is by placing beaker 11 In main heating collar 12, pay heating collar 13, stirring rotator 20 and fixing Level is installed in can put the sample vessel on upright temperature-sensing probe 15 columns Top plate 17, lower plywood 18 and place straight in the Photoelectric work platform under the beaker Stream motor 22, rotary pole consist of, and its two heating collars are with resistance Be through behind the silk outsourcing insulating materials in the copper tube and make, the steel pipe lower end bends to Cast is bathed in water. Its photoelectric detection system is by two corresponding distributions Spot light lamp bulb 10 and photosensitive receiving tube 19 in periphery, beaker bottom form, And spot light lamp bulb 10 arrives lower with the setting height(from bottom) of photosensitive receiving tube 19 with the pendulum that falls Steel ball central point height on the laminate sample is consistent; And the computer main control system is logical Later the temperature-sensing probe seat 4 of the back of the body, heating Connection Block 3, photoelectricity socket 5 and sense Temperature probe, heating stirrer, photoelectric detection system are connected. This computer control Main frame is the relevant software program that adopts existing computer single-chip microcomputer hardware and establishment The Detection ﹠ Controling of completion system.

The utility model embodiment:

Install the utility model by the diagram requirement, making the water-bath initial temperature according to standard is 5 ± 0.5 ℃, the pitch sample is placed the main pair heating collar work of sample ring, the rotation of direct current generator work stirring rotator, water in the beaker was kept heating rate after under the control 3 minutes be 5 ± 0.5 ℃ of per minutes, and with computer display screen on show, sample is progressively softening along with steel ball drops to lower plywood (also two steel ball whereabouts order of possibility have the priority difference of utmost point short time) in sample ring, then steel ball covers the ray that spotlight sends, sound gives the alarm, the computer main control system is about to time and temperature value that twice steel ball drop to the lower plywood predetermined distance and latchs, and calculates on the mean value display screen.The process that all mensuration of said sample are automatic control, detect automatically, show automatically.

The utility model is on probation through Research Institute of Highway, Ministry of Communications, meets the key technical indexes of the contract requirement (CR) of tackle key problems fully, and instrument is easy to use, compact conformation, good looking appearance, has realized research objective, has reached the goal of the invention of expecting.

Claims

1, the automatic softening point apparatus of a kind of pitch, it is characterized in that: it is mainly by computer main control system, photoelectric detection system, heating stirrer is formed, wherein heating stirrer is installed in top plate 17, the lower plywood 18 that can put the sample vessel on upright temperature-sensing probe 15 columns and is placed the direct current generator in the photoelectricity worktable 22 under the beaker by the main heating collar 12 that places beaker, pair heating collar 13, stirring rotator 20 and fixing horizontal again, and rotary pole 21 constitutes; Photoelectric detection system is made up of two corresponding spot light lamp bulb 10 and photosensitive receiving tubes 19 that are distributed in periphery, beaker bottom, and the computer main control system is connected with temperature-sensing probe, heating stirrer, photoelectric detection system by temperature-sensitive spy seat 4, heating Connection Block 3, the photoelectricity socket 5 of back.

2, the automatic softening point apparatus of pitch according to claim 1 is characterized in that: steel ball 27 centre-heights are consistent on the spot light lamp bulb 10 of photoelectric detection system and the setting height(from bottom) of photosensitive receiving tube 19 and the planchet of falling lower plywood.