Grinding equipment for modified asphalt production

Abstract

The utility model provides grinding equipment for producing modified asphalt, which comprises a treatment bin, a first grinding unit and a second grinding unit, wherein a flow divider, a first grinding unit and a second grinding unit are arranged in the treatment bin; the flow divider is arranged between the feeding port and the first grinding unit; a middle frame is further arranged between the first grinding unit and the second grinding unit and between the second grinding roller and the third grinding roller. A first grinding roller is arranged in the first grinding unit, and a second grinding roller and a third grinding roller are arranged in the second grinding unit; a collecting bin is further arranged below the second grinding unit and provided with a discharging port. The first grinding roller is arranged perpendicular to the second grinding roller and the third grinding roller, so that asphalt can be ground and extruded in different radial directions, and the grinding effect is enhanced through the first-stage and second-stage grinding and extruding effects in different directions.

Description

Technical Field

[0001] This utility model belongs to the technical field of asphalt grinding equipment, and in particular relates to a grinding equipment for the production of modified asphalt. Background Technology

[0002] Modified asphalt is an asphalt binder made by adding external admixtures (modifiers) such as rubber, resin, polymer, finely ground rubber powder or other fillers, or by taking measures such as light oxidation processing of asphalt to improve the performance of asphalt or asphalt mixture.

[0003] In the process of synthesizing modified asphalt, it is necessary to finely grind the asphalt to form a particle size that meets the requirements of the composite, thereby improving the bonding effect between the modifier and the asphalt. Most of the grinding equipment used in the existing technology adopts a single radial grinding structure to process asphalt, which easily causes the asphalt particles to be subjected to a single direction of extrusion force during the crushing process, affecting the crushing effect of the asphalt. Utility Model Content

[0004] This utility model provides a grinding equipment for modified asphalt production, which aims to solve the problem that most current asphalt processing uses a single radial grinding structure, which easily leads to a single direction of extrusion force during the asphalt particle crushing process, thus affecting the asphalt crushing effect.

[0005] This utility model is implemented as follows: a grinding device for producing modified asphalt, comprising:

[0006] The processing chamber has a top inlet for asphalt to enter, and an inlet guide channel is provided on the outside of the inlet port, which is connected to the inlet port;

[0007] The processing chamber is equipped with a flow divider, a first grinding unit, and a second grinding unit; the flow divider is located between the feed port and the first grinding unit; a middle frame is also provided between the first grinding unit and the second grinding unit's second and third grinding rollers.

[0008] The first grinding unit is provided with a first grinding roller, and the second grinding unit is provided with a second grinding roller and a third grinding roller. The rotation axes of the second grinding roller and the third grinding roller are perpendicular to the rotation axis of the first grinding roller of the first grinding unit.

[0009] The middle frame is provided with a first material dispensing port and a second material dispensing port, which are located above the first grinding unit and the second grinding roller, respectively.

[0010] The second grinding unit is also provided with a collection chamber below it, and the collection chamber is provided with a discharge port.

[0011] Preferably, a connecting channel is provided at the center of the middle frame, and a flow divider is provided on the connecting channel. The flow divider divides the connecting channel into a first material outlet and a second material outlet. The asphalt processed in the first grinding unit reaches the second grinding roller and the third grinding roller from the first material outlet and the second material outlet, respectively.

[0012] Preferably, the first and second dispensing ports are inverted truncated pyramid structures.

[0013] Preferably, the first grinding unit further includes a hollow first grinding chamber, the first grinding roller is assembled inside the first grinding chamber, and the first grinding chamber is provided with a feed port and a discharge port with a filter screen.

[0014] Preferably, the second grinding unit further includes a second grinding chamber and two sets of grinding chambers disposed inside the second grinding chamber, wherein the second grinding roller and the third grinding roller are respectively disposed in different grinding chambers, and the grinding chambers are connected to the collection chamber.

[0015] Preferably, the surface of the distributor is provided with several sets of protrusions, which are staggered and distributed on the surface of the distributor. The asphalt entering from the feed guide channel flows along the end face of the distributor with protrusions to the first grinding unit.

[0016] Preferably, the sidewalls of the first and second dispensing ports are provided with a plurality of protrusions, which are provided when asphalt passes through the first and second dispensing ports.

[0017] Compared with the prior art, the embodiments of this application have the following main advantages:

[0018] 1. The grinding equipment for modified asphalt production provided by this utility model arranges the first grinding roller perpendicular to the second and third grinding rollers, so that the asphalt can obtain grinding and extrusion action in different radial directions. The grinding effect is enhanced by the grinding and extrusion effect in different directions of the first and second stages, thereby improving the uniformity of the final particle size of the asphalt.

[0019] 2. The grinding equipment for modified asphalt production provided by this utility model, through the guiding and diverting effect of the connecting channel, the asphalt after the first-stage grinding will be evenly dispersed onto the second and third grinding rollers, reducing the situation of poor grinding effect caused by concentrated material feeding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a grinding equipment for producing modified asphalt provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the first grinding unit structure of a grinding equipment for producing modified asphalt provided by this utility model.

[0022] Figure 3 This is a schematic diagram of the second grinding unit structure of a grinding equipment for producing modified asphalt provided by this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the first grinding roller, the second grinding roller, and the third grinding roller in a grinding equipment for producing modified asphalt provided by this utility model.

[0024] Figure 5 This is a schematic diagram of the distributor structure of a grinding equipment for modified asphalt production provided by this utility model.

[0025] Figure 6 This is a schematic diagram of the bump structure of a grinding equipment for producing modified asphalt provided by this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Feed guide channel; 200. Processing chamber; 210. Diverter; 220. First grinding unit; 221. First grinding chamber; 222. First grinding roller; 230. Middle frame; 231. Diverter plate; 231. First feed outlet; 232. Second feed outlet; 240. Second grinding unit; 241. Second grinding roller; 242. Third grinding roller; 243. Second grinding chamber; 300. Collection chamber; 400. Protrusion. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] This utility model embodiment provides a grinding device for modified asphalt production, such as... Figures 1-6 As shown, the grinding equipment for producing modified asphalt includes:

[0031] The processing chamber 200 has a main feed inlet at the top for asphalt to enter, and a feed guide channel 100 is provided on the outside of the feed inlet, which is connected to the main feed inlet.

[0032] The processing chamber 200 is equipped with a flow divider 210, a first grinding unit 220 and a second grinding unit 240; the flow divider 210 is located between the feed port and the first grinding unit 220; a middle frame 230 is also provided between the first grinding unit 220 and the second grinding unit 240;

[0033] The first grinding unit 220 includes a hollow first grinding chamber 221 and a first grinding roller 222. The first grinding roller 222 is assembled inside the first grinding chamber 221. Asphalt is repeatedly crushed and ground into fine particles in the gap between the first grinding chamber 221 and the first grinding roller 222. The top of the hollow area inside the first grinding chamber 221 is provided with an asphalt feed port from the distributor 210, and the bottom of the hollow area inside the first grinding chamber 221 is provided with a discharge port. A filter screen is provided at the discharge port, which allows asphalt that does not meet the particle size requirements to remain inside the first grinding chamber 221 and be repeatedly crushed and ground into asphalt particles.

[0034] The second grinding unit 240 includes a second grinding chamber 243, a second grinding roller 241 and a third grinding roller 242. The second grinding chamber 243 has two sets of grinding chambers inside, which are equipped to accommodate the second grinding roller 241 and the third grinding roller 242. After the asphalt passes through the middle frame 230, it will reach different grinding chambers respectively. In the different grinding chambers, it will be ground by the second grinding roller 241 and the third grinding roller 242 to form particles with the required composite particle size.

[0035] The middle frame 230 is provided with a first material distribution port 232 and a second material distribution port 233, which are located above the second grinding roller 241 and the third grinding roller 242, respectively. The top of the grinding chamber is provided with an inlet to receive the asphalt falling from the first material distribution port 232 and the second material distribution port 233, and the bottom of the grinding chamber is provided with an outlet with a filter screen. Only asphalt that meets the particle size requirements can leave from the outlet.

[0036] Below the second grinding unit 240, there is also a collection chamber 300, which has a main discharge port;

[0037] In this embodiment, the feed guide trough 100 introduces external asphalt into the processing chamber 200. A specially structured distributor 210 disperses the asphalt to be processed, preventing the asphalt from being concentrated on the first grinding unit 220 during the input stage. The first grinding unit 220 processes the dispersed asphalt to improve the grinding effect. The rotation axes of the second grinding roller 241 and the third grinding roller 242 are perpendicular to the rotation axis of the first grinding roller 222 of the first grinding unit 220. By arranging the first grinding roller 222 perpendicular to the second grinding roller 241 and the third grinding roller 242, the asphalt receives grinding action in different radial directions. The two-stage grinding method enhances the grinding effect and improves the uniformity of the final particle size of the asphalt. Under the guidance and diversion of the connecting channel, the asphalt after the first stage of grinding is evenly dispersed on the second grinding roller 241 and the third grinding roller 242, reducing the situation where the grinding effect is poor due to concentrated material input.

[0038] The rotation shafts of the first grinding roller 222, the second grinding roller 241 and the third grinding roller 242 extend out of the processing chamber 200. A power device (not shown in this application) is provided on the outside of the processing chamber. It is mentioned here that the power device adopts existing technology equipment, which will not be described in detail in this application.

[0039] In a preferred embodiment of this invention, a connecting channel is provided at the center of the middle frame 230. The asphalt processed by the first grinding unit 220 reaches the second grinding roller 241 and the third grinding roller 242 through the connecting channel. The connecting channel is provided with a diverting plate 231, which divides the connecting channel into a first material outlet 232 and a second material outlet 233. The first material outlet 232 and the second material outlet 233 are inverted truncated pyramid structures.

[0040] In this embodiment, the asphalt falling from the first grinding chamber 221 is collected through the first feeding port 232 and the second feeding port 233 and then evenly distributed to the second grinding roller 241 and the third grinding roller 242. The second grinding roller 241 and the third grinding roller 242 perform subsequent processing. Under the guidance and diversion of the connecting channel, the asphalt that has undergone primary grinding will be evenly dispersed on the second grinding roller 241 and the third grinding roller 242, reducing the situation where poor grinding effect is caused by concentrated material feeding.

[0041] In a preferred embodiment of this invention, the surface of the distributor 210 is provided with a plurality of sets of protrusions 400. The protrusions 400 are staggered and distributed on the surface of the distributor 210. The asphalt entering from the feed guide channel 100 flows along the end face of the distributor 210 where the protrusions 400 are provided to the first grinding unit 220. The side wall of the connecting channel is provided with a plurality of sets of protrusions 400. When the asphalt flows through the first feed port 232 and the second feed port 233 to the second grinding roller 241 and the third grinding roller 242, it passes through the protrusions 400.

[0042] The 400 bumps provide resistance as the asphalt particles fall, guiding them to avoid them concentrating and reaching the grinding equipment, which would affect the grinding effect.

[0043] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A grinding equipment for producing modified asphalt, characterized in that, include: The processing chamber has a top inlet for asphalt to enter, and an inlet guide channel is provided on the outside of the inlet port, which is connected to the inlet port; The processing chamber is equipped with a flow divider, a first grinding unit, and a second grinding unit; the flow divider is located between the feed port and the first grinding unit; a middle frame is also provided between the first grinding unit and the second grinding unit's second and third grinding rollers. The first grinding unit is provided with a first grinding roller, and the second grinding unit is provided with a second grinding roller and a third grinding roller. The rotation axes of the second grinding roller and the third grinding roller are perpendicular to the rotation axis of the first grinding roller of the first grinding unit. The middle frame is provided with a first material dispensing port and a second material dispensing port, which are located above the first grinding unit and the second grinding roller, respectively. The second grinding unit is also provided with a collection chamber below it, and the collection chamber is provided with a discharge port.

2. The grinding equipment for producing modified asphalt as described in claim 1, characterized in that, A connecting channel is provided at the center of the middle frame, and a flow divider is provided on the connecting channel. The flow divider divides the connecting channel into a first material outlet and a second material outlet. The asphalt processed in the first grinding unit reaches the second grinding roller and the third grinding roller from the first material outlet and the second material outlet, respectively.

3. The grinding equipment for producing modified asphalt as described in claim 2, characterized in that, The first and second material outlets are inverted truncated pyramid structures.

4. The grinding equipment for producing modified asphalt as described in claim 3, characterized in that, The first grinding unit also includes a hollow first grinding chamber, the first grinding roller is assembled inside the first grinding chamber, and the first grinding chamber is provided with a feed port and a discharge port with a filter screen.

5. The grinding equipment for producing modified asphalt as described in claim 4, characterized in that, The second grinding unit also includes a second grinding chamber and two sets of grinding chambers located inside the second grinding chamber. The second grinding roller and the third grinding roller are respectively located in different grinding chambers, and the grinding chambers are connected to the collection chamber.

6. The grinding equipment for producing modified asphalt as described in claim 5, characterized in that, The surface of the distributor is provided with several sets of protrusions, which are staggered and distributed on the surface of the distributor. The asphalt entering from the feed guide channel flows along the end face of the distributor with protrusions to the first grinding unit.

7. The grinding equipment for producing modified asphalt as described in claim 6, characterized in that, The sidewalls of the first and second distribution ports are provided with several sets of protrusions. When asphalt passes through the first and second distribution ports, it passes through the protrusions.

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