CN203124275U - Classifying and reducing-treatment system for refuse in campus - Google Patents

Abstract

A classifying and reducing-treatment system for refuse in a campus comprises a weighbridge 1, a dumping bin 2, a dumping bin conveying plate chain 3, a pre-sorting plate chain 4, a bag breaker 5, a first winnowing plate chain 6, a second winnowing plate chain 7, a third winnowing plate chain 8, a winnower 9, a first air draft hood 10, a first air blowing pipe 11, a second air draft hood 12, a second air blowing pipe 13, a third air draft hood 14, a third air blowing pipe 15, a fine-sorting plate chain 16, a baler 17, a coarse-sorting plate chain 18, an air blower 19, a volume reducer 20 and a biological deodorizing reactor 21. After refuse is treated by the classifying and reducing-treatment system, volume of the refuse is reduced by more than 85%, weight reducing, harm-free treatment and resourceful treatment of the refuse is realized.

Description

A sorting and reducing treatment system for university campus waste

technical field

The invention relates to the technical field of environmental protection, in particular to a system for sorting and reducing waste on a university campus.

Background technique

Wastes generated on university campuses include domestic waste, kitchen waste, and road cleaning waste. The traditional way to deal with the above wastes is to concentrate these wastes in the garbage building, and then transport them outside for landfill treatment. Many cities in China are or will face garbage siege. Accordingly, finding reliable outlets for waste is one of the top priorities for many cities.

The components of university campus waste mainly include recyclable materials such as newspapers, carton boards, plastic bottles, glass bottles, and cans. Biodegradable substances such as leaves, waste batteries, waste fluorescent tubes and other harmful substances. If these wastes are classified according to different properties, then the wastes may no longer be useless garbage, and may become valuable renewable resources. Therefore, the classification of waste is the key to treatment. Without classification, it is impossible to reduce, recycle and harmlessly treat waste.

Sorted waste can be converted into renewable resources according to its nature. Wastes that are converted into resources no longer pollute the environment and can be recycled, thereby achieving the purpose of protecting the environment and regenerating resources.

Contents of the invention

Aiming at the problems mentioned in the background technology, the present invention provides a sorting and reducing treatment system for university campus waste, which can process waste nearby the university campus and realize the harmlessness and reduction of campus waste and resourceful. The system has a simple structure, a small footprint, and can be started at any time to ensure the campus is clean and hygienic, and the waste reduction rate reaches more than 85%.

A system for sorting and reducing waste on a university campus, including weighbridge 1, unloading bin 2, unloading bin conveying plate chain 3, pre-sorting plate chain 4, bag breaking machine 5, and No. 1 winnowing plate Chain 6, No. 2 winnowing plate chain 7, No. 3 winnowing plate chain 8, winnowing machine 9, No. 1 suction hood 10, No. 1 blowing pipe 11, No. 2 suction hood 12, No. 2 blowing pipe 13, No. 3 suction hood 14, No. 3 blowpipe 15, fine sorting plate chain 16, baler 17, coarse sorting plate chain 18, blower 19, volume reducer 20, biological deodorization reactor 21.

Further, the unloading bin 2 and the bag breaking machine 5 are connected through the unloading bin conveying plate chain 3 and the pre-sorting plate chain 4 . The bag breaking machine 5 is connected to the volume reducing machine 20 through the No. 1 air selection plate chain 6, the No. 2 air selection plate chain 7, the No. 3 air selection plate chain 8 and the coarse sorting plate chain 18. The inlet of winnowing machine 9 links to each other with No. 1 suction hood 10, No. 2 suction hood 12, and No. 3 suction hood 14 respectively by pipeline and tee. The outlet of winnowing machine 9 links to each other by the air inlet of blower fan 19 through pipeline. The air outlet of blower 19 links to each other with No. 1 blowpipe 11, No. 2 blowpipe 13, No. 3 blowpipe 15 respectively by pipeline and tee.

Further, the discharge end of the No. 1 air selection plate chain 6 and the feed end of the No. 2 air selection plate chain 7 overlap up and down, the discharge end of the No. 1 air selection plate chain 6 is on the top, and the No. 2 air selection plate chain 6 is on the top. The feed end of chain 7 is at the bottom, and the up and down distance is 150mm; the discharge end of No. On the top, the feed end of No. 3 wind separation plate chain 8 is at the bottom, and the up and down distance is 150mm; the discharge end of No. The discharge end of the winnowing plate chain (8) is on the top, and the feed end of the (artificial) coarse sorting plate chain (18) is down, and the up-down distance is 150mm.

Further, No. 1 suction hood 10 is installed on the extension of the discharge end of No. 1 air separation plate chain 6, and No. 2 suction hood 12, 3 is installed on the extension of the discharge end of No. 2 air separation plate chain 7. No. 3 air suction hood 14 is installed at the extension of the discharge end of No. 1 wind separation plate chain 8. The upper edge of No. 1 air suction hood 10 is separated from the discharge end of No. 1 air separation plate chain 6 and the distance between No. 2 air suction hood 12. The upper edge is 200mm apart from the discharge end of No. 2 air selection plate chain 7, the upper edge of No. 3 air suction hood 14 is apart from the discharge end of No. 3 air selection plate chain 8.

Further stated, No. 1 blowpipe 11 is installed on the bottom of the discharge end of No. 1 wind separation plate chain 6, and No. 2 blowpipe 13 is installed on the bottom of the discharge end of No. 2 wind separation plate chain 7. No. 3 wind separation plate The bottom of the discharge end of chain 8 is equipped with No. 3 blowpipe 15.

Further stated, the installation angle between the No. 1 air selection plate chain 6 and the horizontal plane is 11°, the installation angle between the No. 2 air selection plate chain 7 and the horizontal plane is 25°, and the installation angle between the No. 3 air selection plate chain 8 and the horizontal plane is 25°. The angle is 30°.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the present invention;

Accompanying drawing 2 is blower connection figure of the present invention;

In the picture:

1. Floor scale, 2. Unloading bin, 3. Conveying plate chain for unloading bin, 4. Pre-sorting plate chain, 5. Bag breaking machine, 6. No. 1 winnowing plate chain, 7. No. 2 winnowing plate Chain, No. 8, No. 3 winnowing plate chain, 9. Winnowing machine, No. 10, No. 1 suction hood, No. 11, No. 1 blowing pipe, No. 12, No. 2 suction hood, No. 13, No. 2 blowing pipe, 14, 3 No. suction hood, No. 15, No. 3 blowing pipe, 16. Fine sorting plate chain, 17. Baler, 18. Coarse sorting plate chain, 19. Blower, 20. Volume reducer, 21. Biological deodorization reactor .

Detailed ways

Below in conjunction with accompanying drawing 1 and accompanying drawing 2, the present invention is described in detail.

Referring to the accompanying drawings, the present invention provides a sorting and reducing treatment system for university campus waste, the system consists of a floor scale 1, a discharge bin 2, a conveyor chain 3 for the discharge bin, a pre-sorting board chain 4, Bag breaking machine 5, No. 1 air selection plate chain 6, No. 2 air selection plate chain 7, No. 3 air selection plate chain 8, air separation machine 9, No. 1 suction hood 10, No. 1 blowing pipe 11, and No. 2 suction Air cover 12, No. 2 blowing pipe 13, No. 3 suction hood 14, No. 3 blowing pipe 15, fine sorting plate chain 16, baler 17, coarse sorting plate chain 18, blower 19, volume reducer 20, biological The deodorization reactor 21 is connected.

After the campus waste is scattered and collected by the cleaning personnel with rickshaws or electric vehicles, it is unloaded into the discharge bin 2 after being measured by the floor scale 1. The bottom of the discharge bin 2 is equipped with a discharge bin conveyor chain 3, and the discharge bin The front end of the conveying plate chain 3 is horizontal, the rear end is inclined upward, and the angle between the rear end and the horizontal plane is 22°. After the waste is unloaded into the unloading bin 2, the unloading bin conveys the plate chain 3 upwards. transported to the feed end of the pre-sorting plate chain 4, the discharge end of the conveyor plate chain 3 in the unloading bin and the feed end of the pre-sorting plate chain 4 are overlapped up and down, and the discharge end of the conveyor plate chain 3 in the unloading bin The end is on the top, and the feeding end of the pre-sorting plate chain 4 is on the bottom.

During the process of conveying the waste by the pre-sorting board chain 4, the unpackaged large recyclables, such as glass bottles, beverage bottles, clothing and non-recyclables, such as bricks, are manually sorted. The pre-sorting plate chain 4 runs under the action of the motor, and the waste left over from sorting is sent to the feed port of the bag breaking machine 5, and the discharge end of the pre-sorting plate chain 4 is connected to the inlet of the bag breaking machine 5. The material mouth is connected by a material slide plate, which is trapezoidal, and the wide side is welded on the support of the pre-sorting plate chain 4, and the narrow side stretches into the feed port of the bag breaking machine 5 to prevent waste from falling out. Bag breaking machine 5 is made up of frame, drum, baffle plate, rotating sleeve, fixed shaft, cutter, motor, driving wheel and transmission wheel, automatic control system. After the waste enters the bag breaking machine 5, the plastic bags, woven bags, etc. in the waste are broken through the high-speed rotation of the cutter inside the bag breaking machine 5. The drum inside the bag breaking machine 5 is designed eccentrically, which can prevent the entanglement of plastic bags and fiber ropes. The bagged objects in the waste are disassembled by the bag breaking machine 5, and then together with the non-bag waste, fall through the outlet of the bag breaking machine 5 into the No. The feed end of the plate selection chain 6 and the lap joint are sealed by a baffle plate to prevent the material from falling out. The waste after bag breaking falls from the discharge end of No. 1 wind separation plate chain 6 into the feed end of No. 2 wind separation plate chain 7, and then falls into the No. 3 wind separation plate chain 7 from the discharge end of No. The feed end of the board chain 8 is selected, followed by the discharge end of the No. 3 winnowing board chain 8 and falls into the feed end of the coarse sorting board chain 18. The waste after breaking the bag falls into the stroke of the feed end of the No. 2 air separation plate chain 7 from the discharge end of the No. 1 wind separation plate chain 6, and is connected to the No. 1 blowing pipe 11 connected to the air outlet of the blower 19 and The No. 1 suction hood 10 connected to the inlet of the winnowing machine 9 works together to carry out the first winnowing to the waste. Part of the light waste in the waste, such as plastic bags/cloth, foam plastics and paper, falls to the feed end of the fine sorting plate chain 16 through the discharge port of the winnowing machine 9 . The remaining waste through the first winnowing is transported from the feed end of No. 2 winnowing plate chain 7 to the discharge end of No. 2 winnowing plate chain 7, and then falls into the inlet of No. 3 winnowing plate chain 8. Material end. During the journey of the waste falling into the feed end of the No. 3 air separation plate chain 8, the No. 2 blowing pipe 13 connected to the air outlet of the blower 19 and the No. 2 suction hood 12 connected to the inlet of the air separation machine 9 work together. , and carry out the second winnowing on the waste. Another part of light waste in the waste, such as plastic bags/cloth, foamed plastics and paper, is mixed with the light waste of the first air selection in the winnowing machine 9, and falls to the fine waste through the discharge port of the winnowing machine 9. Infeed end of sorter plate chain 16. The remaining waste through the second winnowing is transported from the feed end of the No. 3 winnowing plate chain 8 to the discharge end of the No. 3 winnowing plate chain 8, and then falls into the feed of the coarse sorting plate chain 18. end. In the stroke of waste falling into the feeding end of the coarse sorting plate chain 18, the No. 3 blowing pipe 15 connected to the air outlet of the blower 19 and the No. 3 suction hood 14 connected to the inlet of the air separator 9 work together to The waste is selected by air for the third time. After three wind selections, more than 98% of the light waste in the waste was selected by wind. Light waste is sorted manually on the sub-sorting board chain 16, and the sorted plastic bags/cloth, foam plastics, paper and packaging boxes are compressed and packed by the baler 17 respectively, and then sent to the material recycling market for recycling.

After the wastes are separated by winnowing machine 9 for three times, the remaining heavy materials are mainly kitchen waste, which contains about 5% of foreign matter, such as waste batteries, packing boxes, stones and so on. During the transportation of heavy materials by the coarse sorting plate chain 18, the waste batteries and packaging boxes in the heavy materials are manually sorted and collected by classification. After the packaging boxes are sorted, they are compressed and packed by the packing machine 17. Send it to a special recycling company for processing, and stones and other inorganic materials are sent to garbage bins and transported to landfills for landfill.

After manual sorting, the remaining kitchen waste is sent into the volume reducer 20 by the discharge end of the coarse sorting plate chain 18 . The volume reducer 20 has the functions of crushing and grinding, and can grind the kitchen waste into a slurry with a particle size of less than 4mm. The slurry liquid is sent to the subsequent anaerobic digestion treatment system for resource treatment of biogas production.

A system for classifying and reducing waste on a university campus is equipped with a biological deodorization reactor 21, and a deodorizing air duct is provided above each device, and the deodorizing air duct is connected to the biological deodorization reactor 21, and the deodorizing air duct The pipe collects the odor, degrades the odor with biological bacteria in the biological deodorization reactor 21, and then discharges it. The discharged gas meets the emission requirements stipulated in the "Emission Standard of Odor Pollutants" (GB14554-93).

After the waste is processed by this system, the volume is reduced by more than 85%, realizing the purpose of waste reduction, harmless and resourceful treatment.

Claims (5)

1. A system for sorting and reducing waste on a university campus, including a floor scale (1), an unloading bin (2), an unloading bin conveyor chain (3), a pre-sorting board chain (4), Bag breaking machine (5), No. 1 air selection plate chain (6), No. 2 air selection plate chain (7), No. 3 air selection plate chain (8), air separation machine (9), No. 1 suction hood ( 10), No. 1 blowing pipe (11), No. 2 suction hood (12), No. 2 blowing pipe (13), No. 3 suction hood (14), No. 3 blowing pipe (15), fine sorting plate chain (16), baler (17), coarse sorting plate chain (18), blower (19), volume reducer (20), biological deodorization reactor (21); characterized in that: discharge bin (2) It is connected with the bag breaking machine (5) through the unloading bin conveying plate chain (3) and the pre-sorting plate chain (4), and the bag breaking machine (5) is connected through the No. Plate chain (7), No. 3 air separation plate chain (8) and coarse sorting plate chain (18) are connected to volume reducer (20); the inlet of air separation machine (9) is connected to No. Suction hood (10), No. 2 suction hood (12), and No. 3 suction hood (14) are connected; the outlet of winnowing machine (9) is connected to the air inlet of blower (19) through pipeline; blower (19) The air outlet is connected with No. 1 blowpipe (11), No. 2 blowpipe (13), and No. 3 blowpipe (15) respectively by pipeline and tee. 2. A system for classifying and reducing waste on a university campus according to claim 1, characterized in that: the discharge end of the No. 1 winnowing plate chain (6) and the No. 2 winnowing plate chain (7 ), the feed end of No. 1 winnowing plate chain (6) is on the top, the feed end of No. 2 winnowing plate chain (7) is on the bottom, and the up and down distance is 150mm; The discharge end of the chain (7) and the feed end of the No. 3 wind separation plate chain (8) are overlapped up and down, the discharge end of the No. ) is at the bottom, and the vertical distance is 150mm; the discharge end of No. ) is on the top, the feed end of the coarse sorting plate chain (18) is on the bottom, and the up and down distance is 150mm. 3. A sorting and reducing treatment system for university campus waste according to claim 1, characterized in that: No. 1 air suction is installed at the extension of the discharge end of No. 1 winnowing plate chain (6) Cover (10), No. 2 suction hood (12) is installed on the extension of the discharge end of No. 2 wind separation plate chain (7), and No. 3 suction cover (12) is installed on the extension of the discharge end of No. Suction hood (14); the distance between the upper edge of No. 1 suction hood (10) and the discharge end of No. 1 air selection plate chain (6), and the distance from the upper edge of No. 2 air suction hood (12) to No. 2 air selection plate The discharge end of chain (7), the upper edge of No. 3 air suction hood (14) are all 200mm apart from the discharge end of No. 3 winnowing plate chain (8). 4. A sorting and reducing treatment system for university campus waste according to claim 1, characterized in that: No. 1 blowpipe ( 11), the lower part of the discharge end of the No. 2 air separation plate chain (7) is equipped with the No. 2 blower pipe (13), and the lower part of the discharge end of the No. 3 air separation plate chain (8) is equipped with the No. 3 blower pipe (15) . 5. A system for sorting and reducing waste on a university campus according to claim 1, characterized in that: the installation angle between the No. 1 air separation plate chain (6) and the horizontal plane is 11°, The installation angle of board chain (7) and horizontal plane is 25 °, and the installation angle of No. 3 air selection board chain (8) and horizontal plane is 30 °.

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