Pitch mixed material warm-mixing and regenerating equipment

[0017] Such as figure 1 , figure 2 The shown asphalt mixture warm-mixing regeneration equipment, which includes: including: asphalt mixture plant mixing original system, asphalt mixture plant mixing regeneration system, additive treatment system and exhaust gas treatment system, asphalt spraying in the asphalt mixture plant mixing original system The system is a warm-mix foamed asphalt spraying system, adding foamed asphalt to the new aggregate prepared by the original asphalt mixture plant mixing system in the mixing tank, and the regenerated hot material prepared by the asphalt mixing plant mixing regeneration system, together with the addition of foamed asphalt to the mixing tank Liquid and solid additives are stirred to prepare the finished asphalt mixture.

[0018] The original asphalt mixture plant mixing system consists of a new aggregate grading device 15, a large particle size aggregate vibrating screen 16, a burner 17, a drying drum 18, and a hot aggregate elevator in the order of the new aggregate processing flow. 19. The new aggregate vibrating screen 20, the hot aggregate bin 21, and the new aggregate metering device 22 are connected together; the lower part of the new aggregate metering device 22 is provided with a stirring cylinder 32, and the lower part of the stirring cylinder 32 is provided with a finished product bin 33. The powder is transported and measured through the powder storage tank 10, the powder elevator 11, the new powder temporary storage tank 12, the old powder temporary storage tank 13, and the powder metering device 14, and the new aggregate after measurement is transported to the mixing tank 32 in.

[0019] Such as image 3 , 4 5. The warm-mix foamed asphalt spray system includes a foamed asphalt foaming device 26, a foamed asphalt water metering device 25, an asphalt storage tank 23, an asphalt metering device 24 and a remote control system. The foamed bitumen foaming device 26 is composed of a bitumen pump, a bitumen foaming pipe, and a foamed bitumen spray nozzle. The inlet of the bitumen foaming pipe is connected to the bitumen pump, and the outlet is connected to the foamed bitumen spray nozzle. The double-layer casing structure of the inner casing and inner core tube. The outer casing is a heat-conducting oil heating casing. There are heat-conducting oil inlet and heat-conducting oil outlet on it. The inner core pipe is a foamed asphalt generating core pipe. The inlet of the inner core tube is provided with a manifold flange 41. The manifold flange is provided with a manifold 40. The external shape of the manifold is circular, and the middle part is composed of protrusions 42; on the sidewall of the manifold flange It is provided with a nozzle hole, which is connected to the water injection pipe of the water supply device, and the outlet of the nozzle hole is connected to the nozzle 39 to spray water into the inner core tube; the inner wall of the outlet end of the inner core tube is provided with mutually orthogonal spiral vanes 38 . The remote control system connects the foamed bitumen water metering device and the bitumen metering device to form a closed-loop control, by feeding back the bitumen and water ratio data of the foamed bitumen water metering device and the bitumen metering device to the remote control system and the initially set water and bitumen ratio The data is compared, and the remote control system realizes the dynamic balance of water and asphalt supply by controlling the foamed asphalt water metering device and the asphalt metering device.

[0020] The asphalt mixture plant-mixing and recycling system includes a recycled material batching device 1, a recycled cold material lifting device 2, a high-level recycling drum 3 for heating the recycled material and heating the recycled material in the order of the asphalt recycled material processing flow. Transition burner device 4, secondary flue gas back-burning device 5, regenerated hot material temporary storage device for receiving and stored hot regenerated material 6, regenerated hot material metering device 7, regenerated hot material pre-mixing device 8, regenerated material conveying The device 9 is connected. The tail gas of the high-level regeneration drum 3 passes through the secondary flue gas reburning device 5, and the tail gas is introduced into the drying cylinder 18 for reburning, reducing the condensation of the light oil distilled from the regeneration drying cylinder on the bag filter 34 to shorten the bag It is to use the life, and at the same time fully burn through the burner, gradually reduce the harmful substances in the exhaust gas and reduce the pollution to the atmosphere. The high-position regeneration drum 3 adopts spiral feeding blades to make the recycled materials entering the high-position regeneration drum move forward quickly to the heating zone. The heating zone is provided with rake-shaped material guide blades, whose main purpose is to heat most of the material to be heated. Recycled materials are lifted, and most of the melted asphalt can be filtered out. Chain blades are used to exchange heat for recycled materials. Because there are gaps in the chain, the flame will not be blocked. The staggered distribution is beneficial for the recycled materials to be lifted and scattered freely. , Make the recycled material achieve the purpose of evenly dispersing, so that the gas can fully exchange heat with the recycled material. Due to the elastic structure of the chain, the adhesion of the recycled material and the blade can be avoided. At the same time, the use of a chain structure allows the filtered asphalt to flow around the cylinder wall, thereby reducing contact with high-temperature flue gas, thereby avoiding the aging of the asphalt.

[0021] The additive processing system includes a liquid additive storage tank 27, a liquid additive metering device 28 that measures the liquid additive in the liquid additive storage tank 27, and the metered liquid additive is sprayed into the mixing tank through a pipeline; the additive processing system also It includes a solid additive storage tank 29, a solid additive metering device 30, and a fan 31 for conveying the metered solid additive to the mixing tank 32.

[0022] The exhaust gas treatment system has a bag filter 34, and the exhaust gas discharged by the volute 35 is sucked and processed. The bag filter 34 is connected to the high-level regeneration drum and the drying heating device through the air pipe. The dust collected by the bag filter 34 can be effectively recovered. The recovered dust can be conveyed to the powder elevator 11 through the screw conveyor, and then through the powder elevator 11 Lift the recycled old powder and new powder tanks to the new powder temporary storage tank 12 and the old powder temporary storage tank 13, respectively, and match the powder materials in the new temporary storage tank 12 and the old temporary storage tank 13 through the screw conveyor The powder is conveyed to the powder metering device 14, and then the powder measured in the powder metering device 14 is sent to the mixing cylinder 32 through the screw conveyor through the screw conveyor. The dust that can not be reused by the dust collector is desulfurized by the mixing tank 36 and then humidified and discharged to the waste liquid pool 37. The waste material in the waste liquid pool 37 is reprocessed and used in other places, which is effectively saved through the recycling and reuse of the powder. Resources are reduced and environmental pollution is reduced.

[0023] Although the implementation cases of the warm-mixed asphalt mixture recycling equipment with improved structure are described in this specification, these cases are only as reminders and should not limit the protection scope of this case. Various omissions, substitutions and changes made within the scope of the spirit of the present invention should be included in the protection scope of the present invention.