Waste asphalt mixture recovery device

Abstract

The utility model relates to a waste asphalt mixture recovery device, which belongs to the technical field of asphalt recovery and comprises a crushing and heating unit and a separating and screening unit, and the crushing and heating unit is arranged above the separating and screening unit and connected with the separating and screening unit through a pipeline. The crushing and heating unit comprises a feeding port, a crusher, a first valve, a stirring and heating furnace, a second valve, a waste gas pipeline and a waste gas cooling unit, the separating and screening unit comprises a separator and a belt line, and in the recovery process of the asphalt mixture, the asphalt mixture is fed into the crusher from the feeding port to be crushed and then enters the stirring and heating furnace to be stirred and heated; the device is simple in structure, the asphalt mixture can be fully heated and separated, the impurity content of the collected asphalt is greatly reduced due to secondary filtration, and the pollution to the environment can be reduced due to the collection of the waste gas.

Description

Technical Field

[0001] This utility model belongs to the field of asphalt recycling technology, specifically a waste asphalt mixture recycling device. Background Technology

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a type of high-viscosity organic liquid, which often exists in liquid or semi-solid petroleum form. It has a black surface and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. With the development of science and technology and the spread of the concept of energy conservation and emission reduction, people are paying more and more attention to the recycling of asphalt.

[0003] Asphalt recycling can be achieved by heating to extract asphalt from waste asphalt mixtures. However, most asphalt recycling equipment on the market only extracts asphalt and does not collect aggregates sufficiently. Furthermore, most recycling equipment tends to generate waste gas, causing environmental pollution. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model discloses a waste asphalt mixture recycling device, comprising a crushing and heating unit and a separation and screening unit. The crushing and heating unit is located above the separation and screening unit and connected by a pipeline. The crushing and heating unit includes a feeding port, a crusher, a first valve, a stirring and heating furnace, a second valve, an exhaust gas pipeline, and an exhaust gas cooling unit. The feeding port is fixed above the crusher, the stirring and heating furnace is installed below the crusher and connected by the first valve, and the second valve is connected below the stirring and heating furnace. One end of the exhaust gas pipeline is connected to the crusher and the other end is connected to the stirring and heating furnace. The exhaust gas cooling unit is connected to the exhaust gas pipeline. The separation and screening unit includes a separator and a belt conveyor, with the belt conveyor fixed to the lower right of the separator.

[0007] Preferably, the exhaust gas cooling unit includes an inner pipe, an outer casing, a water pipe, a collection pipe, a collection outer box, and a collection drawer. The inner pipe passes through the inside of the outer casing and is fixed to the outer casing. The water pipe is wound around the outside of the inner pipe and its two ends are fixed to the outer casing. The upper end of the collection pipe is connected to the inner pipe and the lower end is connected to the collection outer box. The collection drawer is slidably installed inside the collection outer box.

[0008] Preferably, the separator includes a top cover, a separation chamber, a support rod, a screen plate, a vibrator, an asphalt conveying pipe, and a cleaning cover. The top cover is installed on top of the separation chamber, the two ends of the support rod are fixed to the two sides of the separation chamber, the screen plate is mounted on top of the support rod, the vibrator is installed inside the support rod, the asphalt conveying pipe is installed at the bottom of the separation chamber, and the cleaning cover is installed on the side of the separation chamber and fixed with bolts.

[0009] Preferably, a temperature monitor is installed on the side of the stirring furnace.

[0010] Preferably, the sieve plate is installed at an angle and in contact with the vibrator.

[0011] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0012] This utility model discloses a waste asphalt mixture recycling device. During the asphalt mixture recycling process, the asphalt mixture is fed into a crusher through the feeding port. Large pieces of asphalt mixture are crushed into small particles. Then, the first valve is opened, and the crushed asphalt mixture enters the mixing and heating furnace for stirring and heating. The generated exhaust gas enters the exhaust gas cooling unit through the exhaust gas pipe and is collected in the collection drawer for regular cleaning by personnel. After the asphalt melts, the second valve is opened, and the melted asphalt mixture enters the screen plate of the separator. The vibrator operates, and the asphalt flows through the screen plate into the separation box. After secondary filtration by the screen, it is collected through the asphalt conveying pipe. The remaining aggregate moves downward along the vibrating screen plate to the conveyor belt. This device has a simple structure and can fully heat and separate the asphalt mixture. The secondary filtration greatly reduces the impurity content of the collected asphalt, and the exhaust gas collection can reduce environmental pollution. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a waste asphalt mixture recycling device according to the present invention;

[0014] Figure 2 This is a schematic diagram of the exhaust gas cooling unit of this utility model;

[0015] Figure 3 This is a schematic diagram of the separator of this utility model;

[0016] Figure 4 This is a schematic diagram of the asphalt conveying pipe of this utility model;

[0017] Figure 5 This is a schematic diagram of the internal screen plate and vibrator of the separator of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 100. Crushing and heating unit; 110. Feeding port; 120. Crusher; 130. First valve; 140. Stirring and heating furnace; 150. Second valve; 160. Exhaust gas pipe; 170. Exhaust gas cooling unit; 171. Inner pipe; 172. Outer casing; 173. Water pipe; 174. Collection pipe; 175. Collection outer box; 176. Collection drawer.

[0020] 200. Separation and screening unit; 210. Separator; 211. Top cover; 212. Separation box; 213. Support rod; 214. Screen plate; 215. Vibrator; 216. Asphalt conveying pipe; 217. Cleaning cover; 220. Belt conveyor. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0027] See attached document Figure 1-5 This embodiment of a waste asphalt mixture recycling device includes a crushing and heating unit 100 and a separation and screening unit 200. The crushing and heating unit 100 is disposed above the separation and screening unit 200 and connected by a pipe. The crushing and heating unit 100 includes a feeding port 110, a crusher 120, a first valve 130, a stirring and heating furnace 140, a second valve 150, an exhaust gas pipe 160, and an exhaust gas cooling unit 170. The feeding port 110 is fixed above the crusher 120, and the stirring and heating furnace 140 is installed below the crusher 120 and connected by a first valve 130. Valve 130 is connected, and the second valve 150 is connected below the stirring and heating furnace 140. One end of the exhaust gas pipe 160 is connected to the crusher 120 and the other end is connected to the stirring and heating furnace 140. The exhaust gas cooling unit 170 is connected to the exhaust gas pipe 160. The separation and screening unit 200 includes a separator 210 and a belt conveyor 220. The belt conveyor 220 is fixed to the lower right of the separator 210. The exhaust gas in the crusher 120 and the stirring and heating furnace 140 is discharged through the exhaust gas pipe 160 and cooled by the exhaust gas cooling unit 170, which greatly reduces the pollution to the environment.

[0028] The exhaust gas cooling unit 170 of this embodiment includes an inner pipe 171, an outer shell 172, a water pipe 173, a collection pipe 174, a collection outer box 175, and a collection drawer 176. The inner pipe 171 passes through the inside of the outer shell 172 and is fixed to the outer shell 172. The water pipe 173 is wound around the inner pipe 171 and its two ends are fixed to the outer shell 172. The upper end of the collection pipe 174 is connected to the inner pipe 171 and the lower end is connected to the collection outer box 175. The collection drawer 176 is slidably installed inside the collection outer box 175.

[0029] The separator 210 in this embodiment includes a top cover 211, a separation chamber 212, a support rod 213, a screen plate 214, a vibrator 215, an asphalt conveying pipe 216, and a cleaning cover 217. The top cover 211 is installed above the separation chamber 212. The two ends of the support rod 213 are fixed to both sides of the separation chamber 212. The screen plate 214 is mounted above the support rod 213. The vibrator 215 is installed inside the support rod 213. The asphalt conveying pipe 216 is installed at the bottom of the separation chamber 212. The cleaning cover 217 is installed on the side of the separation chamber 212 and fixed with bolts. The operator can periodically open the cleaning cover 217 to clean the separation chamber 212 and prevent blockage.

[0030] In this embodiment, a temperature monitor is installed on the side of the stirring and heating furnace 140, which can monitor the temperature inside the stirring and heating furnace 140 in real time to prevent accidents.

[0031] In this embodiment, the sieve plate 214 is installed at an angle and in contact with the vibrator 215. The angled design, combined with the vibration of the vibrator 215, can accelerate the downward movement of the screened aggregate to the conveyor belt 220.

[0032] Working principle: In the asphalt mixture recycling process, the asphalt mixture is fed into the crusher 120 through the feeding port 110. Large pieces of asphalt mixture are crushed into small particles. Then, the first valve 130 is opened, and the crushed asphalt mixture enters the mixing and heating furnace 140 for mixing and heating. The generated exhaust gas enters the exhaust gas cooling unit 170 through the exhaust gas pipe 160 for cooling and is collected in the collection drawer 176 for regular cleaning by personnel. After the asphalt melts, the second valve 150 is opened, and the melted asphalt mixture enters the screen plate 214 of the separator 210. The vibrator 215 works, and the asphalt flows through the screen plate 214 into the separation box 212. After secondary filtration by the screen, it is collected through the asphalt conveying pipe 216. The remaining aggregate moves down the vibrating screen plate 214 to the belt conveyor 220. This device has a simple structure and can fully heat and separate the asphalt mixture. The secondary filtration greatly reduces the impurity content of the collected asphalt, and the exhaust gas collection can reduce environmental pollution.

[0033] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waste asphalt mixture recycling device, characterized in that: The system includes a crushing and heating unit (100) and a separation and screening unit (200). The crushing and heating unit (100) is located above the separation and screening unit (200) and connected by a pipe. The crushing and heating unit (100) includes a feeding port (110), a crusher (120), a first valve (130), a stirring and heating furnace (140), a second valve (150), an exhaust gas pipe (160), and an exhaust gas cooling unit (170). The feeding port (110) is fixed above the crusher (120). The stirring and heating furnace (140) is connected to the separation and screening unit (200). 40) Installed below the crusher (120) and connected through the first valve (130), the second valve (150) is connected below the stirring heating furnace (140), one end of the exhaust gas pipe (160) is connected to the crusher (120) and the other end is connected to the stirring heating furnace (140), the exhaust gas cooling unit (170) is connected to the exhaust gas pipe (160), the separation and screening unit (200) includes a separator (210) and a belt conveyor (220), the belt conveyor (220) is fixed to the lower right of the separator (210).

2. The waste asphalt mixture recycling device according to claim 1, characterized in that: The exhaust gas cooling unit (170) includes an inner pipe (171), an outer shell (172), a water pipe (173), a collection pipe (174), a collection outer box (175), and a collection drawer (176). The inner pipe (171) passes through the inside of the outer shell (172) and is fixed to the outer shell (172). The water pipe (173) is wound around the inner pipe (171) and both ends are fixed to the outer shell (172). The upper end of the collection pipe (174) is connected to the inner pipe (171) and the lower end is connected to the collection outer box (175). The collection drawer (176) is slidably installed inside the collection outer box (175).

3. The waste asphalt mixture recycling device according to claim 1, characterized in that: The separator (210) includes a top cover (211), a separation chamber (212), a support rod (213), a screen plate (214), a vibrator (215), an asphalt conveying pipe (216), and a cleaning cover (217). The top cover (211) is installed above the separation chamber (212). The two ends of the support rod (213) are fixed to both sides of the separation chamber (212). The screen plate (214) is mounted above the support rod (213). The vibrator (215) is installed inside the support rod (213). The asphalt conveying pipe (216) is installed at the bottom of the separation chamber (212). The cleaning cover (217) is installed below the screen plate (214). The cover (217) is installed on the side of the separation box (212) and fixed by bolts.

4. The waste asphalt mixture recycling device according to claim 1, characterized in that: A temperature monitor is installed on the side of the stirring furnace (140).

5. The waste asphalt mixture recycling device according to claim 3, characterized in that: The sieve plate (214) is installed at an angle and in contact with the vibrator (215).

Images