Environment-friendly gravel material drying equipment
By introducing bag dust collectors and powder recycling mechanisms into the sand and gravel drying equipment, the problem that existing equipment cannot recover and store dust is solved, effective recycling and storage of dust is achieved, and the environmental protection and efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202520771237.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The existing sand and gravel dryers generate a large amount of dust during the drying and recycling process, and require an external dust removal mechanism to remove dust, but the dust cannot be recovered and stored.
An environmentally friendly sand and gravel drying equipment is designed, including a bag dust collector and a powder recovery mechanism. The dust is collected through the bag dust collector, and the collected dust is recycled and stored through the powder recovery mechanism.
It realizes the recycling and storage of dust generated during the drying process, avoids dust waste, and facilitates the use of recycled powder, improving the environmental protection and efficiency of the equipment.
Smart Images
Figure CN222993375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel drying equipment, in particular to an environment-friendly sand and gravel drying equipment. Background Art
[0002] The recycling and utilization of old asphalt pavement materials in a reasonable way can save a large amount of construction raw material costs, effectively avoid material waste and environmental pollution, and the stability of aggregate gradation can greatly improve the aggregate regeneration performance and achieve a larger proportion of addition. At present, various required aggregate gradations are obtained through screening operations. Since the moisture content of the recycled materials is too high during the screening process, it will cause poor screening phenomena such as low screening efficiency, poor screening effect, and screen sticking. The existing technology usually dries the moisture of the recycled materials through a sand and gravel dryer for effective and good screening. The sand and gravel dryer is a device for drying materials such as sand and gravel, slag, etc., and is widely used in industries such as asphalt pavement recycled materials, construction, metallurgy, and chemical industry. Its main function is to evaporate the moisture in the materials through heating and ventilation to make the materials reach the required drying degree. The existing sand and gravel dryers usually generate a large amount of dust during the process of drying recycled materials, and rely on external dust removal mechanisms for dust removal operations. Although the dust removal function can be achieved, the dust removal mechanism cannot recycle and store a large amount of dust. Content of the Utility Model
[0003] To overcome the technical defects existing in the prior art, the utility model provides an environment-friendly sand and gravel drying equipment, which can recycle and store dust during the production process.
[0004] The technical solution adopted by the utility model is: an environment-friendly sand and gravel drying equipment, including a frame, a cold material bin, a drying drum, a bag filter and a powder recovery mechanism. The bag filter and the drying drum are arranged up and down on the frame. The powder recovery mechanism is arranged at one end of the frame. The cold material bin is arranged on one side of the frame and a feeding belt conveyor is arranged between the cold material bin and the drying drum. The drying drum has a dust removal channel leading to the inlet of the bag filter. The powder recovery mechanism includes a recovery powder tank, a powder elevator and a powder chute installed on the frame. One port of the powder chute is connected to the discharge port of the ash hopper of the bag filter. The powder elevator is vertically installed on one side of the recovery powder tank. The discharge port of the powder elevator is communicated with the recovery powder tank. The feeding port of the powder elevator is connected under the other port of the powder chute.
[0005] Preferably, the cold material bin includes a bin body. A filter grid is inclinedly installed at the upper end of the bin body. A belt conveyor is installed at the lower end outlet of the cold material bin. One end of the feeding belt conveyor is connected under the belt conveyor. The other end of the feeding belt conveyor extends to the feeding port of the drying drum.
[0006] Preferably, a material shortage alarm device is installed at the lower end of the warehouse body.
[0007] Preferably, a powder discharge screw conveyor is provided at the lower end of the powder recovery tank.
[0008] Preferably, the drying drum includes a drum frame mounted on a frame, a drum body rotatably mounted on the drum frame, and a drum driving device mounted on the drum frame for driving the drum body to rotate, a feed end and a discharge end are arranged at both ends of the drum body, a burner connected to the discharge end of the drum body is arranged at one end of the drum frame, and a feed hopper connected to the feed end of the drum body is arranged at the other end of the drum frame.
[0009] Preferably, the inner wall of the drum is provided with material guiding blades, material lifting blades, material containing blades and material shifting blades in sequence from its feeding end to its discharging end.
[0010] Preferably, a discharge port is provided on one side of the drum frame close to the discharge end of the drum body, and a discharge belt conveyor is connected below the discharge port.
[0011] Preferably, the dust removal channel is arranged at the feeding end of the drum body.
[0012] Preferably, the drum driving device comprises a driving motor mounted on a drum frame and a driving wheel drivingly connected to an output end of the driving motor, and the driving wheel cooperates with the drum body.
[0013] The beneficial effects of the utility model are as follows: the environmentally friendly sand and gravel drying equipment of the utility model utilizes a bag dust collector to collect the dust generated during the drying process, and recovers and stores the dust generated by the bag dust collector through a powder recovery mechanism. The powder recovery mechanism of the utility model has a powder recovery tank and a powder chute, which can realize the storage of a large amount of dust and is also convenient for taking the powder in the powder recovery tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of the utility model environmentally friendly sand and gravel drying equipment.
[0015] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0016] Figure 3 It is a schematic diagram of the structure of the drum body.
[0017] Figure 4 This is a schematic diagram of the flow direction of sand, gravel and dust in the environmentally friendly sand and gravel drying equipment of the utility model.
[0018] Explanation of the reference numerals: 1. cold material bin; 11. belt conveyor; 12. filter grid; 13. material shortage alarm device; 2. feeding belt conveyor; 3. drying drum; 31. drum frame; 33. drum body; 35. drum driving device; 351. driving motor; 352. driving wheel; 331. material guide blade; 332. material lifting blade; 333. material containing blade; 334. material discharging blade; 34. dust removal channel; 4. burner; 5. discharging belt conveyor; 6. bag dust collector; 7. powder elevator; 71. powder sliding pipe; 8. powder recovery tank; 9. powder discharge screw conveyor. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings:
[0020] like Figures 1 to 4 As shown, the present embodiment provides an environmentally friendly sand and gravel drying equipment, including a frame, a cold material bin 1, a drying drum 3, a bag dust collector 6 and a powder recovery mechanism, the bag dust collector 6 and the drying drum 3 are arranged on the frame up and down, the powder recovery mechanism is arranged at one end of the frame, the cold material bin 1 is arranged on one side of the frame and a feeding belt conveyor 2 is arranged between the cold material bin 1 and the drying drum 3, the drying drum 3 has a dust removal channel 34 leading to the entrance of the bag dust collector 6, the powder recovery mechanism includes a recovery powder tank 8, a powder elevator 7 and a powder sliding pipe 71 installed on the frame, one port of the powder sliding pipe 71 is connected to the discharge port of the ash hopper of the bag dust collector 6, the powder elevator 7 is vertically installed on one side of the recovery powder tank 8, the discharge port of the powder elevator 7 is connected to the recovery powder tank 8, the feed port of the powder elevator 7 is connected to the other port of the powder sliding pipe 71, and the lower end of the recovery powder tank 8 is provided with a powder discharge screw conveyor 9.
[0021] In this embodiment, the cold material bin 1 includes a bin body, a filter grid 12 is obliquely installed on the upper end of the bin body, a belt conveyor 11 is installed at the lower end outlet of the cold material bin 1, one end of the feeding belt conveyor 2 is connected to the bottom of the belt conveyor 11, and the other end of the feeding belt conveyor 2 extends to the feed port of the drying drum 3. The filter grid 12 filters and removes large pieces of material. The belt conveyor 11 adopts variable frequency speed regulation, which can conveniently and quickly adjust the feed amount. A lack of material alarm device 13 is installed at the lower end of the bin body to prevent the drying drum 3 from burning empty when there is a lack of material.
[0022] In this embodiment, the drying drum 3 includes a drum frame 31 installed on a frame, a drum body 33 rotatably installed on the drum frame 31, and a drum driving device 35 installed on the drum frame 31 to drive the drum body 33 to rotate. A feed end and a discharge end are set at both ends of the drum body 33. One end of the drum frame 31 is provided with a burner 4 connected to the discharge end of the drum body 33, and the other end of the drum frame 31 is provided with a feed hopper connected to the feed end of the drum body 33.
[0023] In this embodiment, the inner wall of the drum body 33 is provided with material guide blades 331, material lifting blades 332, material containing blades 333 and material shifting blades 334 in sequence from its feed end to its discharge end. The material guide blades 331, material lifting blades 332, material containing blades 333 and material shifting blades 334 correspond to the material guide area, convection area, combustion area and discharge area in the drum body 33 respectively. The drum body 33 can turn over the sand and gravel materials and dry them efficiently and quickly.
[0024] In this embodiment, a discharge port is provided on one side of the drum frame 31 close to the discharge end of the drum body 33 , and a discharge belt conveyor 5 is connected below the discharge port. Preferably, the dust removal channel 34 is provided at the feed end of the drum body 33 .
[0025] In this embodiment, the roller driving device 35 includes a driving motor 351 installed on the roller frame 31 and a driving wheel 352 drivingly connected to the output end of the driving motor 351, and the driving wheel 352 cooperates with the roller body 33.
[0026] The environmentally friendly sand and gravel drying equipment of this embodiment utilizes a bag dust collector 6 to collect the dust generated during the drying process, and recovers and stores the dust generated by the bag dust collector 6 through a powder recovery mechanism. The powder recovery mechanism of the utility model has a powder recovery tank 8 and a powder chute 71, which can realize the storage of a large amount of dust and is also convenient for taking the powder in the powder recovery tank 8.
[0027] The working process of the environment-friendly sand and gravel drying equipment in this embodiment is as follows: The sand and gravel to be processed are put into the cold material bin 1. The sand and gravel that meet the size pass through the filter grid 12 and fall onto the belt conveyor 11. Then the sand and gravel are conveyed to the feeding belt conveyor 2 through the belt conveyor 11. The feeding belt conveyor 2 conveys the sand and gravel to the feeding port of the drying drum 3. The drying drum 3 rotates and gradually conveys the sand and gravel to the discharging port of the drying drum 3. During this process, the burner 4 heats the sand and gravel in the drying drum 3. The sand and gravel after heating are discharged from the discharging port of the drying drum 3 to the discharging belt conveyor 5. The dust generated during the drying process enters the bag filter 6 through the dust removal channel 34. The bag filter 6 collects the dust into its ash hopper. The dust in the ash hopper is conveyed to the recovery powder tank 8 through the powder chute pipe 71 and the powder elevator 7. The dust in the recovery powder tank 8 can be taken by the powder discharging screw conveyor 9. Figure 4 The solid line with an arrow in it indicates the conveying direction of the sand and gravel. Figure 4 The dashed line with an arrow in it indicates the conveying direction of the dust.
[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present invention, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. Environmentally friendly sand and gravel drying equipment, characterized by: It includes a frame, a cold material bin, a drying drum, a bag dust collector and a powder recovery mechanism, the bag dust collector and the drying drum are arranged on the frame up and down, the powder recovery mechanism is arranged at one end of the frame, the cold material bin is arranged on one side of the frame and a feeding belt conveyor is arranged between the cold material bin and the drying drum, the drying drum has a dust removal channel leading to the entrance of the bag dust collector, the powder recovery mechanism includes a recovery powder tank, a powder elevator and a powder sliding pipe installed on the frame, one port of the powder sliding pipe is connected to the discharge port of the ash hopper of the bag dust collector, the powder elevator is vertically installed on one side of the recovery powder tank, the discharge port of the powder elevator is connected to the recovery powder tank, and the feed port of the powder elevator is connected under the other port of the powder sliding pipe.
2. The environmentally friendly sand and gravel drying equipment according to claim 1 is characterized in that: The cold material bin includes a bin body, a filter grid is obliquely installed on the upper end of the bin body, a belt conveyor is installed at the lower end outlet of the cold material bin, one end of the feeding belt conveyor is connected to the bottom of the belt conveyor, and the other end of the feeding belt conveyor extends to the feed port of the drying drum.
3. The environmentally friendly sand and gravel drying equipment according to claim 2 is characterized in that: A material shortage alarm device is installed at the lower end of the warehouse body.
4. The environmentally friendly sand and gravel drying equipment according to claim 1 is characterized in that: A powder discharge screw conveyor is arranged at the lower end of the powder recovery tank.
5. The environmentally friendly sand and gravel drying equipment according to claim 1 is characterized in that: The drying drum includes a drum frame mounted on a frame, a drum body rotatably mounted on the drum frame, and a drum driving device mounted on the drum frame for driving the drum body to rotate. A feed end and a discharge end are arranged at both ends of the drum body. A burner connected to the discharge end of the drum body is arranged at one end of the drum frame, and a feed hopper connected to the feed end of the drum body is arranged at the other end of the drum frame.
6. The environmentally friendly sand and gravel drying equipment according to claim 5 is characterized in that: The inner wall of the drum is provided with material guiding blades, material lifting blades, material containing blades and material shifting blades in sequence from the feeding end to the discharging end.
7. The environmentally friendly sand and gravel drying equipment according to claim 5 is characterized in that: A discharging port is arranged on one side of the drum frame close to the discharging end of the drum body, and a discharging belt conveyor is connected below the discharging port.
8. The environmentally friendly sand and gravel drying equipment according to claim 5 is characterized by: The dust removal channel is arranged at the feeding end of the drum body.
9. The environmentally friendly sand and gravel drying equipment according to claim 5 is characterized in that: The roller driving device comprises a driving motor mounted on a roller frame and a driving wheel drivingly connected to an output end of the driving motor, wherein the driving wheel cooperates with the roller body.