A modified asphalt waterproofing membrane production batching device

Abstract

The application provides a modified asphalt waterproof coiled material production batching equipment, characterized by comprising a double-screw extruder, a plurality of first feeding ports being arranged at one end of the top of the double-screw extruder, a first discharging pipe being arranged at the bottom of the double-screw extruder and away from one end of the feeding port, the plurality of first feeding ports being connected with a plurality of first storage tank discharge ports respectively, and a vertical discharging pipe being arranged below the first discharging pipe; a single-screw extruder, a feeding hopper being arranged at one end of the top of the single-screw extruder, the feeding hopper being arranged directly below the discharging pipe, a plurality of second feeding ports being further arranged at one end of the top of the single-screw extruder, the plurality of second feeding ports being connected with a plurality of second storage tank discharge ports respectively, and a second discharging pipe being connected with the bottom of the single-screw extruder and away from the feeding hopper. Compared with the prior art, the equipment can reduce the land occupation of the batching equipment, reduce the batching time, and improve the product quality stability.

Description

Technical Field

[0001] This utility model belongs to the field of waterproof membrane production technology, and is particularly related to a batching equipment for the production of asphalt waterproof membrane. Background Technology

[0002] Modified bitumen waterproof membrane production equipment typically includes: a batching system, a production system, a heating system, and an environmental treatment system. Traditional batching systems consist of two rows of batching tanks. The first row is for modification, where bitumen and machine oil are pumped in, heated, and then SBS, SBR, PP, and adhesive powder are added and mixed. This mixture is then pumped into the second row of batching tanks via a colloid mill, where stone powder and root inhibitors are added and thoroughly mixed. Samples are taken and tested to ensure they pass before being discharged for production. This batching method results in a long production cycle. To maximize capacity, additional batching tanks are necessary, leading to excessive equipment footprint. Furthermore, the quality of the mixed material from each tank cannot be completely consistent (primarily due to variations in the accuracy of material addition, temperature, and mixing time). The discharge of material from multiple batching tanks into the coating tank can cause instability in the quality of the modified bitumen waterproof membrane. Therefore, improvements are necessary. Utility Model Content

[0003] To address the aforementioned deficiencies in the prior art, this application provides a batching equipment for the production of asphalt waterproof membrane, which reduces the floor space occupied by the batching equipment, reduces batching time, and improves product quality stability.

[0004] To achieve the above objectives, the present invention employs the following technology: A batching device for producing modified bitumen waterproof membrane includes: The twin-screw extruder has multiple first feed ports at one end of its top and a first discharge pipe at the bottom end of the twin-screw extruder away from the feed ports. The multiple first feed ports are respectively connected to the discharge ports of multiple first storage tanks, and a vertical discharge pipe is provided below the first discharge pipe. The single-screw extruder has a feed hopper at one end of its top, which is located directly below the discharge pipe. The top end of the single-screw extruder also has multiple second feed ports, which are connected to the discharge ports of multiple second storage tanks. The bottom end of the single-screw extruder, away from the receiving hopper, is connected to a second discharge pipe.

[0005] Furthermore, an electric heating element is provided around the discharge pipe. The top of the discharge pipe is slidably connected to a pair of slide rails via a sliding plate. The slide rails are connected to the bottom of a fixed plate. Two through holes are provided on the fixed plate. The first discharge pipe is connected to one of the through holes. The bottom height of the first discharge pipe matches the top height of the discharge pipe. One side of the fixed plate is connected to a transverse pushing mechanism. The moving end of the transverse pushing mechanism moves parallel to the length direction of the slide rail. A vertical linear mechanism is provided on the top of the fixed plate. The telescopic end of the vertical linear mechanism is connected to a push rod. The bottom of the push rod is provided with a circular push plate that matches the inner diameter of the discharge pipe. The circular push plate is axially aligned with the other through hole. When the telescopic end of the transverse pushing mechanism is fully retracted, the axial direction of the discharge pipe is aligned with the axial direction of the circular push plate. When the telescopic end of the transverse pushing mechanism is fully extended, the axial direction of the discharge pipe is aligned with the axial direction of the first discharge pipe.

[0006] Furthermore, the vertical linear mechanism includes a U-shaped frame, a movable block, and a lead screw. The U-shaped frame includes a pair of vertical plates and a horizontal plate connected to one end of the vertical plates. The pair of vertical plates are fixed to a fixed block, which is fixed to one end of the twin-screw extruder. The movable block is slidably connected between the pair of vertical plates in the vertical direction. The lead screw is vertically positioned and threadedly connected to the movable block. The top of the lead screw is connected to the output shaft of a drive motor. The drive motor is connected to the horizontal plate through a connecting plate. The movable block is connected to the top of the push rod. The push rod is slidably connected to the fixed block in the vertical direction, and the circular push plate is located at the bottom of the fixed block.

[0007] Furthermore, protrusions are provided on both sides of the movable block, and a pair of vertical plates are provided with strip grooves along the vertical direction, with a pair of protrusions slidably connected in the strip grooves.

[0008] Furthermore, the fixed plate has multiple first connecting holes, and the sliding plate has multiple second connecting holes. When the discharge pipe moves to the same axial direction as the first discharge pipe, the multiple first connecting holes are aligned with the multiple second connecting holes respectively. The top of the transverse pushing mechanism is provided with a slider, which is slidably connected to the fixed block in the vertical direction.

[0009] The beneficial effects of this utility model are as follows: 1. By using a twin-screw extruder, a single-screw extruder, a first storage tank, and a second storage tank in combination, the floor space occupied by the batching equipment can be reduced, the batching time can be reduced, and the stability of product quality can be improved; 2. It can automatically push out the raw materials adhering to the inner wall of the discharge pipe, thereby cleaning the inner wall of the discharge pipe. Attached Figure Description

[0010] Figure 1 This is a perspective view of the overall structure of the device in the embodiment of this application.

[0011] Figure 2 This is a partial three-dimensional structural view of the device according to an embodiment of this application.

[0012] Figure 3 for Figure 2 Enlarged view of section A in the middle.

[0013] Figure 4 This is a three-dimensional structural view of the vertical linear mechanism of the device in the embodiment of this application.

[0014] Figure 5 This is a three-dimensional view of another part of the structure of the device in the embodiment of this application.

[0015] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0016] Figure 7 This is a perspective view of the connection structure between the discharge pipe and the fixed plate in the equipment of this application embodiment.

[0017] Reference numerals: Twin-screw extruder-1, First discharge pipe-101, First storage tank-2, Discharge pipe-5, Single-screw extruder-3, Feed hopper-301, Second storage tank-4, Second discharge pipe-302, Electric heating assembly-501, Sliding plate-502, Slide rail-801, Fixed plate-8, Through hole-802, Horizontal pushing mechanism-7, Vertical linear mechanism-6, Push rod-9, Circular push plate-901, U-shaped frame-601, Movable block-602, Lead screw-603, Vertical plate-6011, Horizontal plate-6012, Fixed block-605, Drive motor-604, Connecting plate-6041, Protrusion-6021, First connecting hole-803, Second connecting hole-5021, Slider-701. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0019] This application provides a batching device for producing asphalt waterproof membrane, such as... Figures 1-7 As shown, it includes a twin-screw extruder 1, a single-screw extruder 3, a first storage tank 2, a second storage tank 4, etc.

[0020] Specifically, the twin-screw extruder 1 has multiple first feed ports at one end of its top, and a first discharge pipe 101 at the bottom of the twin-screw extruder 1 away from the feed ports. The multiple first feed ports are respectively connected to the discharge ports of multiple first storage tanks 2. A vertical discharge pipe 5 is provided below the first discharge pipe 101. The single-screw extruder 3 has a feed hopper 301 at one end of its top, which is located directly below the discharge pipe 5. The single-screw extruder 3 also has multiple second feed ports at one end of its top, which are respectively connected to the discharge ports of multiple second storage tanks 4. A second discharge pipe 302 is connected at the bottom of the single-screw extruder 3 away from the receiving hopper, which is used to discharge material into the oiling tank.

[0021] In actual use, the number of first storage tanks 2 and second storage tanks 4 can be set according to the types of raw materials to be added as needed. Before production, the heating devices of the single-screw extruder 3 and the twin-screw extruder 1 are turned on in advance, and the temperature is set at 170~190℃. The main raw materials such as machine oil, SBS, and asphalt are added to the multiple first storage tanks 2 respectively, and auxiliary materials such as stone powder and root inhibitor are added to the second storage tanks 4 respectively. Both the first storage tanks 2 and the second storage tanks 4 are selected to be storage tanks equipped with feeding metering pumps. After the raw materials in the first storage tanks 2 are sent into the twin-screw extruder 1 through the metering pump, the high-speed shearing can fully mix and disperse the SBS and other polymer materials evenly in the screw. Then, they are discharged into the single-screw extruder 3 from the first discharge pipe 101 and the discharge pipe 5. At the same time, the raw materials in the second storage tanks 4 are sent into the single-screw extruder 3 through the metering pump. After being mixed evenly in the single-screw extruder 3, they are discharged through the second discharge pipe 302 and discharged into the oil coating tank to complete the batching.

[0022] Because the second discharge tank is located between the twin-screw extruder 1 and the single-screw extruder 3, the discharge pipe 5 needs to be set to a relatively long length. The raw material extruded by the twin-screw extruder 1 will adhere to the inner wall of the discharge pipe 5. Over time, this accumulation will affect the discharge efficiency of the discharge pipe 5 and may even cause blockage. In a preferred embodiment, see [reference needed]. Figures 2-6The discharge pipe 5 is equipped with an electric heating element 501 around its periphery. The top of the discharge pipe 5 is slidably connected to a pair of slide rails 801 via a sliding plate 502. The slide rails 801 are connected to the bottom of a fixed plate 8. The fixed plate 8 has two through holes 802. The first discharge pipe 101 is connected to one of the through holes 802. The bottom height of the first discharge pipe 101 matches the top height of the discharge pipe 5. One side of the fixed plate 8 is connected to a transverse pushing mechanism 7. The moving end of the transverse pushing mechanism 7 moves parallel to the length direction of the slide rails 801. The top of the fixed plate 8 is equipped with a vertical linear mechanism 6. The telescopic end of the vertical linear mechanism 6 is connected to a push rod 9. The bottom of the push rod 9 is connected to the discharge pipe. 5. A circular push plate 901 with a matching inner diameter is axially aligned with another through hole 802. When the telescopic end of the transverse pushing mechanism 7 is fully extended, the axial direction of the discharge pipe 5 is aligned with the axial direction of the first discharge pipe 101. When the telescopic end of the transverse pushing mechanism 7 is fully retracted, the axial direction of the discharge pipe 5 is aligned with the axial direction of the circular push plate 901. At this time, the vertical linear mechanism 6 is controlled to drive the push rod 9 and the push plate to move downward, so that the push plate moves along the axial direction of the discharge pipe 5 out of the bottom of the discharge pipe 5, which can push out the raw material adhering to the inner wall of the discharge pipe 5, thereby cleaning the inner wall of the discharge pipe 5. Specifically, the raw material adhering to the bottom of the push plate can also be scraped off at this time to prevent the raw material from being brought back into the discharge pipe 5 when the push plate rises.

[0023] For details, please refer to Figure 4 The vertical linear mechanism 6 includes a U-shaped frame 601, a movable block 602, and a lead screw 603. The U-shaped frame 601 includes a pair of vertical plates 6011 and a horizontal plate 6012 connected to one end of the vertical plates 6011. The pair of vertical plates 6011 are fixed on a fixed block 605, which is fixed to one end of the twin-screw extruder 1. The movable block 602 is slidably connected between the pair of vertical plates 6011 in the vertical direction. The lead screw 603 is vertically arranged and threadedly connected to the movable block 602. The top of the lead screw 603 is connected to the output shaft of a drive motor 604. The drive motor 604 is connected to the horizontal plate 6012 through a connecting plate 6041. The movable block 602 is connected to the top of the push rod 9. The push rod 9 is slidably connected to the fixed block 605 in the vertical direction, and the circular push plate 901 is located at the bottom of the fixed block 605. When it is necessary to control the movement of push rod 9, the drive motor 604 drives the lead screw 603 to rotate, which in turn drives the movable block 602 and push rod 9 to move vertically. Specifically, a pneumatic cylinder or a hydraulic cylinder can be selected as the transverse linear mechanism; for more details, please refer to [reference needed]. Figure 5 Both sides of the movable block 602 are provided with protrusions 6021, and a pair of vertical plates 6011 are provided with strip grooves along the vertical direction. The pair of protrusions 6021 are slidably connected in the strip grooves to improve the stability of the movable block 602 during the up and down movement.

[0024] For details, please refer to Figure 3 , Figure 6 , Figure 7 The fixed plate 8 has multiple first connecting holes 803, and the sliding plate 502 has multiple second connecting holes 5021. When the discharge pipe 5 moves to be axially aligned with the first discharge pipe 101, the multiple first connecting holes 803 are respectively aligned with the multiple second connecting holes 5021. The top of the transverse pushing mechanism 7 is provided with a slider 701, which is slidably connected to the fixed block 605 in the vertical direction. When the discharge pipe 5 is aligned with the first discharge pipe 101, screws can be inserted into the first connecting holes 803 and the corresponding second connecting holes 5021, and nuts can be screwed into the screws to make the discharge pipe 5 and the first discharge pipe 101 abut together, so as to prevent the raw material from leaking out from between the first discharge pipe 101 and the discharge pipe 5 during discharge.

[0025] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A batching equipment for producing modified bitumen waterproof membrane, characterized in that, include: The twin-screw extruder (1) has multiple first feed ports at one end of its top. The bottom of the twin-screw extruder (1) is provided with a first discharge pipe (101) at the end away from the feed ports. The multiple first feed ports are respectively connected to the discharge ports of multiple first storage tanks (2). A vertical discharge pipe (5) is provided below the first discharge pipe (101). The single screw extruder (3) has a feed hopper (301) at one end of its top. The feed hopper (301) is located directly below the discharge pipe (5). The top end of the single screw extruder (3) is also provided with multiple second feed ports. The multiple second feed ports are respectively connected to the discharge ports of multiple second storage tanks (4). The bottom end of the single screw extruder (3) away from the receiving hopper is connected to a second discharge pipe (302).

2. The batching equipment for producing modified bitumen waterproof membrane according to claim 1, characterized in that, An electric heating element (501) is provided around the discharge pipe (5). The top of the discharge pipe (5) is slidably connected to a pair of slide rails (801) via a sliding plate (502). The slide rails (801) are connected to the bottom of a fixed plate (8). Two through holes (802) are provided on the fixed plate (8). The first discharge pipe (101) is connected to one of the through holes (802). The bottom height of the first discharge pipe (101) matches the top height of the discharge pipe (5). One side of the fixed plate (8) is connected to a transverse pushing mechanism (7). The moving end of the transverse pushing mechanism (7) moves parallel to the slide rail. (801) In the length direction, a vertical straight mechanism (6) is provided on the top of the fixed plate (8). The telescopic end of the vertical straight mechanism (6) is connected to a push rod (9). The bottom of the push rod (9) is provided with a circular push plate (901) that matches the inner diameter of the discharge pipe (5). The circular push plate (901) and another through hole (802) are axially the same. When the telescopic end of the transverse pushing mechanism (7) is fully retracted, the axial direction of the discharge pipe (5) is the same as the axial direction of the circular push plate (901). When the telescopic end of the transverse pushing mechanism (7) is fully extended, the axial direction of the discharge pipe (5) is the same as the axial direction of the first discharge pipe (101).

3. The batching equipment for producing modified bitumen waterproof membrane according to claim 2, characterized in that, The vertical linear mechanism (6) includes a U-shaped frame (601), a movable block (602), and a lead screw (603). The U-shaped frame (601) includes a pair of vertical plates (6011) and a horizontal plate (6012) connected to one end of the vertical plates (6011). The pair of vertical plates (6011) are fixed to a fixed block (605), which is fixed to one end of the twin-screw extruder (1). The movable block (602) is slidably connected to the pair of vertical plates (6011) in the vertical direction. Between 11), the lead screw (603) is set vertically and threadedly connected to the movable block (602). The top of the lead screw (603) is connected to the output shaft of a drive motor (604). The drive motor (604) is connected to the horizontal plate (6012) through the connecting plate (6041). The movable block (602) is connected to the top of the push rod (9). The push rod (9) is slidably connected to the fixed block (605) in the vertical direction, and the circular push plate (901) is at the bottom of the fixed block (605).

4. The batching equipment for producing modified bitumen waterproof membrane according to claim 3, characterized in that, The movable block (602) has protrusions (6021) on both sides, and a pair of vertical plates (6011) have strip grooves along the vertical direction. The pair of protrusions (6021) are slidably connected in the strip grooves.

5. The batching equipment for producing modified bitumen waterproof membrane according to claim 3, characterized in that, The fixed plate (8) has multiple first connection holes (803) and the sliding plate (502) has multiple second connection holes (5021). When the discharge pipe (5) moves to the same axial direction as the first discharge pipe (101), the multiple first connection holes (803) are aligned with the multiple second connection holes (5021). The top of the transverse pushing mechanism (7) is provided with a slider (701), and the slider (701) is slidably connected to the fixed block (605) in the vertical direction.

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