Bamboo sawdust desanding and cleaning automatic recovery system

Abstract

The utility model provides a desanding, cleaning and automatic recycling system for bamboo wood chips, and relates to the technical field of desanding of bamboo wood chips. Comprising a feeding groove formed in the ground, a desanding cleaning machine and a chain scraper conveyor connected between the feeding groove and the desanding cleaning machine, the desanding cleaning machine comprises a mixing and separating box, a settling tank and a slag collecting tank which are arranged from top to bottom, and an inclined net is arranged on the side, away from the chain scraper conveyor, of the desanding cleaning machine; an inclined net is arranged below the settling tank, a water storage tank is arranged below the inclined net, one side of the settling tank is connected and communicated with a flow guide box, a drum screen is arranged below the flow guide box, a slurry storage tank is arranged below the drum screen, and the slurry storage tank is connected with a sand remover through a sand pump. According to the utility model, the problem that gravel and soil contained in the existing bamboo sawdust greatly influence subsequent production equipment and finished products is solved.

Description

Technical Field

[0001] The utility model provides an automatic sand removal, cleaning and recycling system for bamboo sawdust, which relates to the technical field of bamboo sawdust sand removal. Background Art

[0002] Bamboo is an evergreen plant with a cylindrical stem that is hollow and jointed, and its tender shoots are called bamboo shoots. The stem can be used for construction and making utensils, and the bamboo shoots can be eaten. The bamboo sawdust sifted out from bamboo and wood chips can be used as a plant culture medium, fuel, industrial shaping agent, medicine, or for pressing powder boards. The collection and utilization of bamboo sawdust also contribute to environmental protection, reduce tree felling, increase income, and improve resource utilization rate.

[0003] In the prior art, the bamboo sawdust sifted out from bamboo and wood chips contains sand and soil, which has a great impact on the subsequent production equipment and finished products. In view of this situation, we propose an automatic sand removal, cleaning and recycling system for bamboo sawdust. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that the existing bamboo sawdust contains sand and soil, which has a great impact on the subsequent production equipment and finished products.

[0005] To solve the above technical problem, the technical solution provided by the utility model is: an automatic sand removal, cleaning and recycling system for bamboo sawdust, including a feeding trough opened on the ground, a sand removal and cleaning machine, and a chain conveyor connected between the feeding trough and the sand removal and cleaning machine. The sand removal and cleaning machine includes a mixing and separating box, a sedimentation tank, and a slag collection tank arranged from top to bottom. An inclined screen is arranged on one side of the sand removal and cleaning machine away from the chain conveyor, and a water storage tank is arranged below the inclined screen. One side of the sedimentation tank is connected and communicated with a diversion box, a cylindrical screen is arranged below the diversion box, a slurry storage tank is arranged below the cylindrical screen, and the slurry storage tank is connected with a sand remover through a sand pump.

[0006] Preferably, a roller is rotatably arranged at the top of the mixing and separating box, blades are uniformly fixed on the side wall of the roller, and a cross inclined plate is installed at the bottom of the mixing and separating box.

[0007] Preferably, a water pump is connected and communicated between the water storage tank and the top of the mixing and separating box.

[0008] Preferably, a sight glass is arranged on the slag collection tank, and slag discharge valves are arranged at both ends of the slag collection tank.

[0009] Preferably, 2 sand removers are arranged, and a good pulp discharge port is arranged at the top of the sand remover, a slag discharge port is arranged at the bottom of the sand remover, a slag collection pipe is installed at the slag discharge port, and pneumatic valves are installed at both ends of the slag collection pipe.

[0010] Preferably, the sedimentation tank is conical.

[0011] Preferably, a protective cover is installed on the top of the mixing and separation tank.

[0012] Preferably, a walking platform is also installed on the top side of the chain conveyor and the sand removal and cleaning machine.

[0013] Preferably, baffles are equidistantly installed on the chain conveyor, and the distance between the baffles is 300 mm.

[0014] Advantages of the present utility model:

[0015] The sand removal and cleaning system of this solution is easy to operate and basically unattended. Only need to feed materials into the chain conveyor.

[0016] The sand removal effect is excellent, and the bamboo sawdust cleaned out is very clean.

[0017] There is no loss of bamboo sawdust. The water circulated from the inclined screen can be reused, and the pulp discharged from the good pulp of the sand remover can also be reused. The whole process has zero sewage discharge, actively responding to and implementing the national environmental protection policy. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an automatic sand removal, cleaning and recycling system for bamboo sawdust of the present utility model.

[0019] Figure 2 It is a partial enlarged view of an automatic sand removal, cleaning and recycling system for bamboo sawdust of the present utility model.

[0020] (1. Feeding trough; 2. Chain conveyor; 3. Inclined screen; 4. Water storage tank; 5. Cylindrical screen; 6. Pulp storage tank; 7. Sand remover; 8. Water pump; 9. Sand pump; 10. Mixing and separation tank; 11. Precipitation tank; 12. Slag collection tank; 13. Cross inclined plate; 14. Drum; 15. Diversion box; 16. Discharge valve) Detailed implementation manners

[0021] Next, the preferred embodiments of the present utility model will be described in detail in conjunction with the drawings.

[0022] As Figure 1 、 Figure 2 shown, the present utility model provides an automatic sand removal, cleaning and recycling system for bamboo sawdust, including a feeding trough 1 opened on the ground, a sand removal and cleaning machine, and a chain conveyor 2 connected between the feeding trough 1 and the sand removal and cleaning machine. The space of the feeding trough 1 is 2 m 3 and it is 1000 mm lower than the ground, which is convenient for discharging materials. The bottom of the chain conveyor 2 is horizontally installed in the feeding trough 1, and the top is connected to the sand removal and cleaning machine for discharging materials. Baffles are installed on the chain conveyor 2 at intervals of 300 mm to prevent the bamboo sawdust from sliding down during the lifting process.

[0023] Furthermore, a quantitative conveying device is also installed on the chain plate conveyor 2 to ensure balanced conveying volume so as not to affect the sand removal effect.

[0024] Furthermore, the chain plate conveyor 2 is driven by a stepless variable frequency motor, and the lifting speed can be adjusted at any time according to the actual situation. The stepless variable frequency motor is connected to the electric control box.

[0025] Furthermore, the size of the sand removal and cleaning machine is 3000*1000*3000mm, made of all 304 stainless steel, with a body thickness of 3mm. The bracket adopts 80# national standard square tube. The sand removal and cleaning machine includes a mixing and separation box 10, a sedimentation tank 11 and a slag collection tank 12 arranged from top to bottom. A roller 14 is rotatably arranged at the top of the mixing and separation box 10. Blades are evenly fixed on the side wall of the roller 14. A total of 3 groups of rollers 14 are provided. The first group is used to completely immerse the floating bamboo sawdust in water after the material comes from the chain plate conveyor 2. The second group is used to fully stir the bamboo sawdust in the mixing and separation box 10. The third group is used to lift and convey the bamboo sawdust in the mixing and separation box 10 to the right side for discharge.

[0026] Furthermore, the roller 14 is driven by a variable frequency motor and can be connected to the electric control box to operate synchronously with the chain plate conveyor 2.

[0027] Furthermore, through the setting of the roller 14, the bamboo sawdust and large and small gravel are separated. Since the density of the gravel is greater than that of water, it will sink downward by itself, and some of the water-soaked bamboo sawdust will also sink.

[0028] Furthermore, a cross inclined plate 13 is installed at the bottom of the mixing and separation box 10. The cross inclined plate 13 is used to prevent the water flow in the lower sedimentation tank 11 from having water flow waves caused by the rotation of the roller 14 driving the water flow to swirl.

[0029] Furthermore, an inclined screen 3 is arranged on one side of the sand removal and cleaning machine away from the chain plate conveyor 2. A water storage tank 4 is arranged below the inclined screen 3. The inclined screen 3 is a stainless steel perforated plate with a filter screen installed on it. The filter screen has 80 meshes. The size of the water storage tank 4 is 2000*1000*1000mm, and there is a slope at the bottom to facilitate the water flow to the discharge port. The water in the bamboo sawdust discharged from the right side of the mixing and separation box 10 flows to the lower water storage tank 4 for recovery, and the dehydrated bamboo sawdust slides down to the bottom of the inclined screen 3.

[0030] Furthermore, a liquid flow regulating device is installed at the bamboo sawdust discharge part on the right side of the mixing and separation box 10, and the bamboo sawdust discharge volume can be adjusted at any time according to needs.

[0031] Furthermore, a water pump 8 is connected and communicated between the water storage tank 4 and the top of the mixing and separation box 10. The water in the water storage tank 4 is pumped into the bamboo sawdust incoming material place on the left side of the mixing and separation box 10 through the water pump 8. The water pressure can be used to push the water flow with bamboo sawdust to move towards the cleaned bamboo sawdust discharge port, and also reduce the load of part of the roller 14.

[0032] Further, the sedimentation tank 11 is conical. One side of the sedimentation tank 11 is connected to a diversion box 15. Below the diversion box 15 is a cylindrical screen 5, and below the cylindrical screen 5 is a slurry storage tank 6. The conical sedimentation tank 11 facilitates slag collection at the bottom and the sinking of sand and gravel. A diversion plate is installed at the bottom of the sedimentation tank 11, so that the soaked bamboo sawdust will not sink to the slag collection tank 12 but enter the diversion box 15 due to sinking, achieving effective recovery. The function of the diversion box 15 is to collect the bamboo sawdust and some floating fine sand and gravel in the sedimentation tank 11, and then enter the cylindrical screen 5 in the later stage. The aperture of the cylindrical screen 5 is Φ3, and its function is to filter out the longer bamboo sawdust.

[0033] Further, a sight glass is provided on the slag collection tank 12, and slag discharge valves 16 are provided at both ends of the slag collection tank 12. The sight glass facilitates observing the amount of slag. The slag discharge valve 16 is a DN150 pneumatic penetrating knife gate valve, which adopts an intermittent slag discharge method. The pneumatic control of the knife gate valve is connected to the control electric box to automatically control the opening and closing time of the upper and lower knife gate valves.

[0034] Further, the slurry storage tank 6 is connected to a desander 7 through a sand pump 9. There are 2 desanders 7, and a good slurry discharge port is provided at the top of the desander 7, and a slag discharge port is provided at the bottom. A slag collection pipe is installed at the slag discharge port, and pneumatic valves are installed at both ends of the slag collection pipe. The two desanders 7 are used alternately, made of wear-resistant nylon material, with a flow rate of 150 L / min, and the inlet and outlet slurry are DN25. The good slurry is recycled. A small transparent DN25 slag collection pipe is installed at the slag discharge port, and slag is discharged intermittently through the pneumatic valve. The pneumatic valve is connected to the control electric box to automatically control the opening and closing time of the upper and lower knife gate valves.

[0035] Further, a protective cover is installed on the top of the mixing and separation box 10 for enclosed operation, without dust and splashing water, which is environmentally friendly and safe.

[0036] Further, a walking platform is also installed on the top of one side of the chain conveyor 2 and the sand removal and cleaning machine, which is convenient for observing and maintaining the equipment.

[0037] Working principle: The chain conveyor 2 transports the bamboo sawdust in the feeding trough 1 to the sand removal and cleaning machine. The sand and gravel sink to the sedimentation tank 11 under their own weight in the sand removal and cleaning machine, and then enter the slag collection tank 12. The bamboo sawdust is discharged from the right side of the sand removal and cleaning machine under the action of the roller 14 and water flow. The discharged water flows downward through the inclined screen 3 into the water storage tank 4 for recycling, and the bamboo sawdust slides to the bottom of the inclined screen 3 for centralized collection for convenient recycling. Some of the bamboo sawdust in the sedimentation tank 11 enters the diversion box 15 for collection, and the later stage enters the cylindrical screen 5 to filter out the longer bamboo sawdust. The slurry discharged from the cylindrical screen 5 is collected and stored by the slurry storage tank 6, and the slurry is transported to the desander 7 through the sand pump 9, and the good materials and waste residues in the slurry are further separated through the desander 7.

[0038] The above description is made on the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural manners and embodiments similar to the technical solution without departing from the purpose of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A bamboo sawdust sand removal, cleaning and automatic recycling system, characterized by: It includes a feeding trough opened on the ground, a sand removal and cleaning machine, and a chain conveyor connected between the feeding trough and the sand removal and cleaning machine. The sand removal and cleaning machine includes a mixing and separation box, a sedimentation tank and a slag collection tank arranged from top to bottom. The sand removal and cleaning machine is provided with an inclined net on the side away from the chain conveyor, a water storage tank is provided below the inclined net, one side of the sedimentation tank is connected to a guide box, a cylindrical screen is provided below the guide box, a slurry storage tank is provided below the cylindrical screen, and the slurry storage tank is connected to a desander through a sand pump.

2. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: A roller is rotatably arranged on the top of the mixing and separation box, blades are evenly fixed to the side walls of the roller, and a cross inclined plate is installed at the bottom of the mixing and separation box.

3. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: A water pump is connected between the water storage tank and the top of the mixing and separation box.

4. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: The slag collecting pot is provided with a sight glass, and slag discharge valves are provided at both ends of the slag collecting pot.

5. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: There are two desanders, and a good pulp discharge port is arranged at the top of the desander, and a slag discharge port is arranged at the bottom. The slag discharge port is installed with a slag collecting pipe, and pneumatic valves are installed at both ends of the slag collecting pipe.

6. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: The sedimentation tank is conical.

7. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: A protective cover is installed on the top of the mixing and separation box.

8. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: A walking platform is also installed on the top of one side of the chain conveyor and the sand removal and cleaning machine.

9. The bamboo sawdust sand removal, cleaning and automatic recycling system according to claim 1, characterized in that: Baffles are equidistantly installed on the chain conveyor, and the distance between the baffles is 300 mm.

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