CN202376932U - Pitch shearing machine - Google Patents

Abstract

The utility model discloses a pitch shearing machine which comprises a rotor, a funnel, a rotating shaft, a motor, an iron shelf and a gearbox, wherein the motor and the funnel are fixed on the iron shelf, the funnel is positioned under the motor, the rotor is connected under the motor through the rotating shaft, the lower end of the rotor stretches into the funnel, and the gearbox is connected with the motor. The pitch shearing machine also comprises a vacuum pump, wherein the head part of the vacuum pump is provided with a circulating pipe, an outlet pipe and a vacuumizing pipe, the two ends of the funnel are sealed, the head part of the vacuum pump is connected at the lower end of the funnel, and the two ends of the circulating pipe are respectively connected at the upper end and the lower end of the funnel. The pitch shearing machine disclosed by the utility model is used for the modification of pitch, and can be also used for the emulsification of the pitch, so that large particles are sheared, and the pitch is not wasted. Meanwhile, after a test is completed, the pitch shearing machine can be conveniently washed.

Description

asphalt shearing machine

technical field

The utility model relates to an asphalt shearing machine, which is specifically applied in the fields of construction, traffic and the like, and is used for modifying and emulsifying the asphalt, especially for high-grade roads which have higher requirements on the quality of the asphalt.

Background technique

Since the laboratory preparation process of modified asphalt and emulsified asphalt in our country is still in the development stage, the country has not yet strictly stated and required the preparation process of laboratory modified asphalt and emulsified asphalt. The commonly used device for laboratory modification and emulsified asphalt preparation is the colloid mill, but the cost of the colloid mill is high, and once the emulsifier and the base asphalt cannot be blended, the motor is easily burned, and the rotor is not easy to clean. In addition, some asphalt shear emulsifiers are used to shear the asphalt, but the amount of emulsified asphalt that needs to be prepared each time is very small, and during the preparation process, the asphalt is easy to splash out due to the high-speed rotation of the rotor. Therefore, the preparation of modified asphalt and emulsified asphalt in the laboratory is generally carried out with reactors. However, the commonly used reactors cannot effectively cut the particles, and the prepared modified asphalt often contains many coarse particles, which leads to the performance of modified asphalt. Not ideal. Therefore, it is very necessary to study a sorting shearer that can shred large particles of asphalt and mix the asphalt evenly, and is easy to clean.

Contents of the invention

In view of the defects or deficiencies in the above-mentioned prior art, the purpose of this utility model is to provide an asphalt shearing machine, which can be used to modify asphalt, and can also be used to emulsify asphalt. Large particles can be cut into pieces without wasting asphalt. At the same time, the asphalt shearer can be easily cleaned after the test is completed.

In order to achieve the above object, the utility model adopts the following technical solutions:

An asphalt shearing machine, including a rotor, a funnel, a rotating shaft, a motor, an iron frame, and a transmission. The motor and the funnel are fixed on the iron frame, and the funnel is located below the motor; the rotor is connected to the bottom of the motor through a rotating shaft, and the lower end of the rotor extends into the inside of the funnel; the transmission is connected with the motor; it is characterized in that it also includes a vacuum pump, and the head of the vacuum pump has a circulation pipe, an outlet pipe and a vacuum pipe; the two ends of the funnel are sealed, and the head of the vacuum pump is connected at the lower end of the funnel; the two ends of the circulation pipe are respectively connected to the upper and lower ends of the funnel.

The utility model also includes the following other technical features:

The rotor is located at the lower part of the funnel, and the distance between the rotor and the inner wall of the lower part of the funnel is close but not in contact.

Described funnel adopts iron sheet funnel.

The rotor includes at least 3 blades.

The material of the blade is stainless steel.

The outlet pipe and circulation pipe are provided with switches.

The transmission adopts a manual transmission.

The motor is an AC asynchronous motor.

Described vacuum pump adopts W type horizontal vacuum pump.

The beneficial effects of the utility model:

(1) The motor drives the rotor on the shaft to stir the asphalt, which realizes the mechanization of asphalt modification and asphalt emulsification, saves time and effort, and the obtained modified and emulsified asphalt has good uniformity and performance.

(2) The distance between the rotor and the inner wall of the lower part of the funnel is relatively close, which can fully shear the asphalt particles, modifiers, and emulsifiers. At the same time, the circulation pipe on the vacuum pump can make the mixture in the funnel circulate during the preparation process. Circular shear and more even mixing.

The utility model can realize the emulsification and modification of the asphalt. The modified and emulsified asphalt prepared by the utility model has uniform particles and good shearing effect, and the funnel can be disassembled, which is convenient for cleaning after the test.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is a schematic diagram of the rotor and shaft.

The utility model will be further explained below in conjunction with the accompanying drawings and specific embodiments.

Detailed ways

As shown in Figure 1, the asphalt shearing machine of the present utility model comprises rotor 4, funnel 5, rotating shaft 6, motor 7, iron frame 8, speed changer 10, and described motor 7 and funnel 5 are fixed on iron frame 8, and funnel 5 is located below the motor 7, and the funnel 5 is used to hold asphalt and modifiers or emulsifiers, and an iron funnel can be used; the rotor 4 is connected to the bottom of the motor 7 through the rotating shaft 6, and the lower end of the rotor 4 extends into the inside of the funnel 5. The rotor 4 is in the shape of a flying leaf, and the rotor 4 includes at least three stainless steel blades 9 ; the transmission 10 is connected to the motor 7 through copper wires 9 .

The utility model also includes a vacuum pump 1, the head of the vacuum pump 1 has a circulation pipe 3, an outlet pipe 2 and a vacuuming pipe 11; the two ends of the funnel 5 are sealed, and the head of the vacuum pump 1 is connected to the lower end of the funnel 5; The two ends of the circulation pipe 3 are respectively connected to the upper and lower ends of the funnel 5 . The vacuum pump 1 is used for vacuuming, so that the asphalt can circulate. The outlet pipe 2 is used for the modified or emulsified asphalt to flow out from the funnel 5, and the outlet pipe 2 is provided with a switch. The circulation pipe 3 makes the asphalt circulate, and then can make the shearing even and fast, and the coarse particles can be shredded. The circulation pipe 3 is provided with a switch.

The transmission 10 is a manual transmission.

The motor 7 is an AC asynchronous motor.

The vacuum pump 1 is a W-type horizontal vacuum pump.

When the utility model is installed, the rotor 4 is inserted into the bottom of the funnel 5, and the distance between the rotor 4 and the inner wall of the bottom of the funnel 5 is relatively close but not in contact. Because the distance is very close, not only the rotation of the rotor itself can shear the asphalt, Moreover, the asphalt is sheared through the friction between the rotor and the lower part of the funnel, so that the shearing is more sufficient.

The working process of utilizing the utility model to prepare modified asphalt is as follows:

1) Put base asphalt and modifier in an oven and heat to 145°C.

2) Turn on the switch on the circulation pipe, put hot water in the funnel, and preheat the funnel and the circulation pipe.

3) Turn off the switch on the circulation pipe, open the switch on the outlet pipe, and let off the hot water. Then close the switch of the outlet pipe, put the base asphalt and modifier that have reached the temperature in the funnel.

4) Connect the motor to the power supply, adjust the button on the transmission to the desired scale, generally 7000-9000 rpm, and turn on the vacuum pump.

5) After rotating for 15 minutes, close the switch of the circulation pipe, open the switch of the outlet pipe, and release the obtained modified pitch.

The working process of utilizing the utility model to prepare modified asphalt is as follows:

1) Put the base asphalt in an oven, heat it to 145°C, and put the emulsifier into water at 60°C according to the mixing ratio to prepare an emulsifier aqueous solution.

2) Turn on the switch on the circulation pipe, put hot water in the funnel, and preheat the funnel and the circulation pipe.

3) Turn off the switch on the circulation pipe, open the switch on the outlet pipe, and let off the hot water. Then close the switch of the outlet pipe, put the emulsifier aqueous solution into the funnel, then slowly put the base asphalt into the funnel, if it is found that the base asphalt and the emulsifier are insoluble, then stop the test; if the base asphalt and the emulsifier are compatible, then Continue to pour the base asphalt until all the base asphalt is put into the funnel.

4) Connect the motor to the power supply, adjust the button on the transmission to the desired scale, generally 7000-9000 rpm, and turn on the vacuum pump.

5) After rotating for 10 minutes, turn off the switch of the circulation pipe, open the switch of the outlet pipe, and put the obtained emulsified asphalt into a jar or cylinder.

The above-mentioned embodiment is only a preferred example of the utility model. This example has explained the technical scheme and implementation points of the utility model in detail, and is not intended to limit the scope of protection of the utility model. Simple modifications and equivalent structural changes or modifications shall be covered within the protection scope of the present utility model.

Claims (9)

1. An asphalt shearing machine, comprising a rotor (4), a funnel (5), a rotating shaft (6), a motor (7), an iron frame (8), a speed changer (10), the motor (7) and the funnel ( 5) Fixed on the iron frame (8), the funnel (5) is located below the motor (7); the rotor (4) is connected to the bottom of the motor (7) through the rotating shaft (6), and the lower end of the rotor (4) extends into the funnel (5); the transmission (10) is connected with the motor (7); it is characterized in that it also includes a vacuum pump (1), and the head of the vacuum pump (1) has a circulation pipe (3), an outlet pipe (2 ) and vacuum tube (11); the two ends of the funnel (5) are sealed, and the head of the vacuum pump (1) is connected to the lower end of the funnel (5); the two ends of the circulation tube (3) are respectively connected to the funnel ( 5) The upper and lower ends. 2. The asphalt shearing machine according to claim 1, characterized in that, the rotor (4) is located at the lower part of the funnel (5), and the distance between the rotor (4) and the inner wall of the lower part of the funnel (5) is close but not in contact . 3. The asphalt shearing machine according to claim 1, characterized in that, the funnel (5) is an iron funnel. 4. The asphalt shearing machine according to claim 1, characterized in that the rotor (4) comprises at least 3 blades (9). 5. The asphalt shearing machine according to claim 4, characterized in that, the material of the blade (9) is stainless steel. 6. The asphalt shearing machine according to claim 1, characterized in that switches are provided on the outlet pipe (2) and the circulation pipe (3). 7. The asphalt shearing machine according to claim 1, characterized in that, the transmission (10) is a manual transmission. 8. The asphalt shearing machine according to claim 1, characterized in that, the motor (7) is an AC asynchronous motor. 9. The asphalt shearing machine according to claim 1, characterized in that, the vacuum pump (1) is a W-type horizontal vacuum pump.

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