Recycled dust collecting device for asphalt concrete mixing plant

Abstract

The utility model discloses an asphalt concrete mixing plant recovered dust collecting device, which relates to the technical field of dust treatment and comprises two main supports, U-shaped grooves are fixedly mounted on the upper surfaces of the two main supports, a cover plate is fixedly connected to the upper surfaces of the U-shaped grooves, a feeding hole is formed in the upper surface of the cover plate, and the feeding hole is communicated with the U-shaped grooves. A U-shaped groove is formed in the lower surface of the main support, a discharging port is formed in the lower surface of the U-shaped groove, a spraying pipe is fixedly connected into the U-shaped groove, a filter pressing device is arranged on the lower surface of the U-shaped groove and comprises a connecting frame fixedly connected to the lower surface of the main support, the connecting frame is located below the discharging port, and a steel wire mesh is fixedly connected to the bottom end of the connecting frame. And the upper surface of the steel wire mesh is fixedly connected with a gauze. And by arranging the filter pressing device, flexible filter pressing work on the slurry is facilitated, water liquid obtained after filter pressing can be reused, the utilization rate of the water liquid is increased, and therefore the use performance of the recycled dust collecting device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of dust treatment technology, specifically to a dust collection device for asphalt concrete mixing plants. Background Technology

[0002] Asphalt concrete mixing plant dust collection devices are equipment used to collect the dust generated during the mixing plant's production process. Some collection devices are also equipped with a dust removal system, which can regularly clean the collected dust so that it can be recycled and reused, realizing resource recycling, reducing production costs, and also helping to improve the environmental protection level and production efficiency of the mixing plant.

[0003] A Chinese patent with publication number CN206566662U discloses a dust collection device for asphalt mixing plants. Its structure includes a U-shaped trough, transmission shafts, mixing blades, and a motor. The U-shaped trough is a covered steel plate trough, 1.5 meters long, 0.5 meters high, and 0.4 meters wide, with inlets and outlets at both ends. Two transmission shafts with mixing blades are installed inside the U-shaped trough, and a 7.5KW motor is externally mounted. Gears mesh between the two transmission shafts. A high-pressure atomizing spray device is installed at the inlet, and the collected dust is centrally discharged into a silo. Turning on the spray device increases the humidity inside the silo, naturally humidifying the dust and preventing it from spreading and forming clumps. The dust is then discharged through the outlet along the transmission shafts. This reduces environmental pollution and noise. Furthermore, the discharged slurry, by adjusting the drainage volume, can be used as filler for other materials.

[0004] Existing technologies often have the following drawbacks: in the actual use of the above structures, a lot of water resources are often wasted during the spraying process, and the untreated mud has a high water content, large volume, and high transportation and disposal costs.

[0005] Therefore, this utility model provides a dust collection device for asphalt concrete mixing plants. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a dust collection device for asphalt concrete mixing plants.

[0007] The technical solution adopted by this utility model is: a dust collection device for asphalt concrete mixing plants, including a main support frame, with a U-shaped trough fixedly installed on the upper surface of the two main supports frame, a cover plate fixedly connected to the upper surface of the U-shaped trough, an inlet on the upper surface of the cover plate, an outlet on the lower surface of the U-shaped trough, a spray pipe fixedly connected inside the U-shaped trough, and a filter press device provided on the lower surface of the U-shaped trough. The filter press device includes a connecting frame fixedly connected to the lower surface of the main support frame, the connecting frame being located below the outlet, a wire mesh fixedly connected to the bottom end of the connecting frame, a mesh fixedly connected to the upper surface of the wire mesh, and a push plate slidably connected to the inner side of the connecting frame.

[0008] The effects achieved by the above components are as follows: by setting up a filter press, the flexible filter press operation of the mud is facilitated, and the filtered water can be reused, thereby improving the utilization rate of the water and further improving the performance of the dust collection device.

[0009] Preferably, the connecting frame is internally threaded with a lead screw, and the lead screw and the push plate are internally rotatably connected.

[0010] The effect achieved by the above components is as follows: when the lead screw is rotated, the lead screw is rotatably connected to the push plate and threadedly connected to the connecting frame. As the lead screw rotates, the push plate slides upward within the connecting frame, squeezing the mud.

[0011] Preferably, a water tank is fixedly installed at the lower port of the connecting frame.

[0012] The effect achieved by the above components is that during the extrusion process, water permeates through the mesh and wire mesh and flows into the water tank through the bottom of the connecting frame.

[0013] Preferably, the side wall of the water tank is connected to a connecting pipe, and two mounting rods are fixedly connected to the side wall of the U-shaped groove. A water pump is fixedly installed between the two mounting rods. One end of the water pump is fixedly connected to the connecting pipe, and the other end of the water pump is fixedly connected to the spray pipe.

[0014] The effect achieved by the above components is as follows: when the water pump is started, the water in the water tank is pumped to the spray pipe through the connecting pipe, thereby spraying and reducing dust in the U-shaped trough.

[0015] Preferably, the surface of the connecting frame is provided with an auxiliary device, the auxiliary device including a groove formed on the side of the connecting frame away from the lead screw, a baffle slidably connected to the inner wall of the groove, the lower side of the baffle having a bent structure, and a rectangular opening formed on the side of the connecting frame away from the lead screw.

[0016] The effect achieved by the above-mentioned components is that by setting up auxiliary devices, it is convenient to flexibly open the rectangular hole, thereby facilitating the processing of the squeezed mud cake and further improving the efficiency of classifying and processing the filter press slurry.

[0017] Preferably, a connecting block is fixedly connected to the surface of the baffle, and a bolt is threadedly connected to the inside of the connecting block.

[0018] The effect achieved by the above components is that when cleaning the filter residue inside the connecting frame, the bolts should be loosened first.

[0019] Preferably, the surface of the connecting block has a row of insertion holes, the size of which is adapted to the size of the bolt.

[0020] The effect achieved by the above components is that the bolts can be inserted into different holes to adjust the height of the baffle according to actual needs.

[0021] Preferably, a U-shaped mounting frame is fixedly connected to the lower side of the baffle, and a number of barbed hooks are fixedly connected to the side wall of the mounting frame, with a collection bag covering the surface of each of the barbed hooks.

[0022] The effect achieved by the above components is that several barbed hooks are fixedly connected to the mounting frame on the lower side of the baffle, and the surface of the barbed hooks is covered with a collection bag, so that the discharged mud cake can fall directly into the collection bag.

[0023] The beneficial effects of this utility model are:

[0024] 1. In this utility model, water resources are recycled, while solid dust is trapped on the mesh and wire mesh, completing the filter press process. This effectively reduces the water content of the slurry, decreases its volume, and facilitates subsequent transportation and disposal. The wire mesh prevents the mesh from sinking during use, while the mesh itself improves the filter press effect on the slurry. The filter press device facilitates flexible slurry filtration, and the filtered water can be reused, improving the water utilization rate and further enhancing the performance of the dust collection device.

[0025] 2. In this utility model, the discharged mud cake can fall directly into the collection bag, which facilitates the centralized collection and processing of the mud cake. By setting an auxiliary device, it is convenient to flexibly open the rectangular hole, thereby facilitating the processing of the squeezed mud cake and further improving the efficiency of classifying and processing the slurry after filter pressing.

[0026] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0029] Figure 3 This is a partial structural schematic diagram of the medium-pressure filtration device of this utility model.

[0030] Figure 4 In this utility model Figure 3 Another structural diagram from another angle.

[0031] Figure 5 In this utility model Figure 4 Enlarged view of point A.

[0032] Figure 1-5 Components: 1. Main support; 2. U-shaped trough; 3. Cover plate; 4. Inlet; 5. Spray pipe; 6. Outlet; 7. Filter press; 71. Connecting frame; 72. Water tank; 73. Connecting pipe; 74. Water pump; 75. Mounting rod; 76. Push plate; 77. Lead screw; 78. Mesh screen; 79. Wire mesh; 8. Auxiliary device; 81. Reserved groove; 82. Baffle; 83. Mounting frame; 84. Collection bag; 85. Hook; 86. Insertion hole; 87. Connecting block; 88. Bolt. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] This utility model provides a dust collection device for asphalt concrete mixing plants.

[0036] In this embodiment, refer to Figure 1-5The dust collection device for asphalt concrete mixing plant includes a main support 1. A U-shaped trough 2 is fixedly installed on the upper surface of the two main supports 1. A cover plate 3 is fixedly connected to the upper surface of the U-shaped trough 2. An inlet 4 is opened on the upper surface of the cover plate 3. An outlet 6 is opened on the lower surface of the U-shaped trough 2. A spray pipe 5 is fixedly connected inside the U-shaped trough 2. A filter press 7 is provided on the lower surface of the U-shaped trough 2. An auxiliary device 8 is provided on the surface of the connecting frame 71.

[0037] The filter press device 7 includes a connecting frame 71 fixedly connected to the lower surface of the main support 1. The connecting frame 71 is located below the discharge port 6. A wire mesh 79 is fixedly connected to the bottom end of the connecting frame 71, and a gauze mesh 78 is fixedly connected to the upper surface of the wire mesh 79. A push plate 76 is slidably connected to the inner side of the connecting frame 71. By setting up the filter press device 7, flexible filtration of sludge is facilitated, and the filtered water can be reused, improving the utilization rate of water and thus further improving the performance of the dust collection device. A lead screw 77 is internally threaded to the connecting frame 71, and the lead screw 77 and the push plate 76 are internally rotatably connected. Rotating the lead screw 77 rotatably connects the lead screw 77 to the push plate 76 and is threadedly connected to the connecting frame 71. As the lead screw 77 rotates, the push plate 76 slides upward within the connecting frame 71, squeezing the sludge. A water tank 72 is fixedly installed at the lower end of the connecting frame 71. During the extrusion process, water permeates through the mesh 78 and wire mesh 79, flowing into the water tank 72 through the bottom of the connecting frame 71. A connecting pipe 73 connects to the side wall of the water tank 72. Two mounting rods 75 are fixedly connected to the side wall of the U-shaped channel 2, and a water pump 74 is fixedly installed between the two mounting rods 75. One end of the water pump 74 is fixedly connected to the connecting pipe 73, and the other end is fixedly connected to the spray pipe 5. When the water pump 74 is started, the water in the water tank 72 is pumped to the spray pipe 5 through the connecting pipe 73, thereby spraying and suppressing dust in the U-shaped channel 2.

[0038] The auxiliary device 8 includes a groove on the side of the connecting frame 71 away from the lead screw 77. A baffle 82 is slidably connected to the inner wall of the groove. The lower side of the baffle 82 has a bent structure. A rectangular opening is provided on the side of the connecting frame 71 away from the lead screw 77. By setting the auxiliary device 8, the flexible opening of the rectangular opening is facilitated, thereby facilitating the processing of the pressed mud cake and further improving the efficiency of the classification and processing of the filtered mud. A connecting block 87 is fixedly connected to the surface of the baffle 82, and a bolt 88 is threaded into the internal part of the connecting block 87. When cleaning the filter residue in the connecting frame 71, the bolt 88 is loosened first. A row of insertion holes 86 is provided on the surface of the connecting block 87. The size of the insertion holes 86 is adapted to the size of the bolt 88. The bolt 88 can be inserted into different insertion holes 86 according to actual needs to adjust the height of the baffle 82. A U-shaped mounting frame 83 is fixedly connected to the lower side of the baffle 82. Several barbed hooks 85 are fixedly connected to the side wall of the mounting frame 83, and collection bags 84 are covered on the surface of the barbed hooks 85. Several barbed hooks 85 are fixedly connected to the mounting frame 83 on the lower side of the baffle 82. Collection bags 84 are covered on the surface of the barbed hooks 85, and the discharged mud cake can fall directly into the collection bags 84.

[0039] Working principle: The recovered dust enters the U-shaped trough 2 through the feed inlet 4. The water pump 74 is started, and water from the water tank 72 is pumped to the spray pipe 5 through the connecting pipe 73, thus spraying and suppressing the dust in the U-shaped trough 2. The sprayed dust mixes with the water to form a slurry, which falls from the discharge outlet 6 onto the mesh 78 and wire mesh 79 in the lower connecting frame 71. At this time, the lead screw 77 is rotated, and the lead screw 77 is rotatably connected to the push plate 76 and threadedly connected to the connecting frame 71. As the lead screw 77 rotates, the push plate 76 slides upward within the connecting frame 71, squeezing the slurry. During the squeezing process, water permeates through the mesh 78 and wire mesh 79. The water flows into the water tank 72 through the bottom of the connecting frame 71, realizing the recycling of water resources. Solid dust is trapped on the mesh 78 and wire mesh 79, completing the pressure filtration process, effectively reducing the water content of the mud, reducing its volume, and facilitating subsequent transportation and disposal. The wire mesh 79 prevents the mesh 78 from sinking during use, while the mesh 78 improves the pressure filtration effect of the mud. The pressure filtration device 7 facilitates flexible pressure filtration of the mud, and the filtered water can be reused, improving the utilization rate of the water and further enhancing the performance of the dust collection device.

[0040] When cleaning the filter cake inside the connecting frame 71, first loosen the bolt 88. The lower side of the baffle 82 has a bent structure, which facilitates the guidance of the discharged mud cake. The surface of the connecting block 87 has a row of insertion holes 86 that are compatible with the bolt 88. The bolt 88 can be inserted into different insertion holes 86 according to actual needs. Adjust the height of the baffle 82 and slide the baffle 82 upward along the slide groove so that the rectangular opening on the side of the connecting frame 71 away from the screw 77 opens. The mud cake after pressing can be discharged from the rectangular opening. At the same time, several barbs 85 are fixedly connected to the mounting frame 83 on the lower side of the baffle 82. The surface of the barbs 85 is covered with a collection bag 84. The discharged mud cake can fall directly into the collection bag 84, which facilitates the centralized collection and treatment of the mud cake. By setting the auxiliary device 8, it is convenient to flexibly open the rectangular opening, thereby facilitating the treatment of the pressed mud cake and further improving the efficiency of the classification and treatment of the pressed slurry.

[0041] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A dust collection device for asphalt concrete mixing plants, comprising a main support frame (1), characterized in that: U-shaped grooves (2) are fixedly installed on the upper surfaces of the two main supports (1). A cover plate (3) is fixedly connected to the upper surface of the U-shaped grooves (2). An inlet (4) is opened on the upper surface of the cover plate (3). An outlet (6) is opened on the lower surface of the U-shaped grooves (2). A spray pipe (5) is fixedly connected inside the U-shaped grooves (2). A filter press (7) is provided on the lower surface of the U-shaped grooves (2). The filter press (7) includes a connecting frame (71) fixedly connected to the lower surface of the main support (1). The connecting frame (71) is located below the outlet (6). A wire mesh (79) is fixedly connected to the bottom end of the connecting frame (71). A gauze (78) is fixedly connected to the upper surface of the wire mesh (79). A push plate (76) is slidably connected to the inner side of the connecting frame (71).

2. The dust collection device for asphalt concrete mixing plants according to claim 1, characterized in that: The connecting frame (71) is internally threaded with a lead screw (77), and the lead screw (77) is internally rotatably connected to the push plate (76).

3. The dust collection device for asphalt concrete mixing plants according to claim 1, characterized in that: A water tank (72) is fixedly installed at the lower port of the connecting frame (71).

4. The dust collection device for asphalt concrete mixing plants according to claim 3, characterized in that: The side wall of the water tank (72) is connected to a connecting pipe (73), and the side wall of the U-shaped groove (2) is fixedly connected to two mounting rods (75). A water pump (74) is fixedly installed between the two mounting rods (75). One end of the water pump (74) is fixedly connected to the connecting pipe (73), and the other end of the water pump (74) is fixedly connected to the spray pipe (5).

5. The dust collection device for asphalt concrete mixing plants according to claim 1, characterized in that: The surface of the connecting frame (71) is provided with an auxiliary device (8). The auxiliary device (8) includes a groove opened on the side of the connecting frame (71) away from the lead screw (77). A baffle (82) is slidably connected to the inner wall of the groove. The lower side of the baffle (82) is a bent structure. A rectangular opening is opened on the side of the connecting frame (71) away from the lead screw (77).

6. The dust collection device for asphalt concrete mixing plants according to claim 5, characterized in that: A connecting block (87) is fixedly connected to the surface of the baffle (82), and a bolt (88) is threadedly connected to the inside of the connecting block (87).

7. The dust collection device for an asphalt concrete mixing plant according to claim 6, characterized in that: The surface of the connecting block (87) has a row of insertion holes (86), the size of which is compatible with the size of the bolt (88).

8. The dust collection device for an asphalt concrete mixing plant according to claim 5, characterized in that: The lower side of the baffle (82) is fixedly connected to a U-shaped mounting frame (83), and the side wall of the mounting frame (83) is fixedly connected to a number of barbs (85), and the surface of the number of barbs (85) is covered with a collection bag (84).

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