Dry-wet combined sorting system for municipal solid waste

Patent metadata

Field	Value
Publication number	US-10464073-B2
Application number	US-201415035946-A
Country	US
Kind code	B2
Filing date	Jan 21, 2014
Priority date	Nov 14, 2013
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A dry-wet combined sorting system for municipal solid waste comprising a dry type smashing and winnowing device and a wet type water sorting device. The system is compact in structure; smashing knives with different revolving speeds and the same revolving direction are provided, thereby enabling continuous processing of the system which is high in processing efficiency and simple in operation; meanwhile, multiple protection devices are provided, so that the whole system is safe and reliable; perishable organic matters, light combustible matters and inorganic matters can be separated completely; the light combustible matters are picked out by the dry type smashing and winnowing device, which ensures their low water content and facilitates their subsequent energy-oriented utilization. Therefore, the municipal solid waste is into valuable thing for it can be utilized sufficiently as a resource, and the system has very high environmental benefits and social benefits.

First claim

The invention claimed is:

1. A dry-wet combined sorting system for municipal solid waste, comprising:
a dry smashing and winnowing device; and
a wet water soiling device,
wherein the dry smashing and winnowing device comprises:
a feeding port;
a smashing bin below the feeding port;
a sieve below the smashing bin;
a winnowing chamber below the sieve;
an adaptive conveying belt positioned below the winnowing chamber and wherein the adaptive conveying belt having a speed that changes according to a load of the municipal solid waste; and
a slow revolving knife and a fast revolving knife with the same revolving direction are adjacently arranged in the smashing bin, and the slow revolving is arranged below the feeding port; a fan is arranged on one side of the winnowing chamber; and the running direction of the adaptive conveying belt is opposite to a wind direction that is blown by the fan,

wherein the wet water sorting device comprises:
a pool having water;
a feeding port positioned at a front end of the pool;
a support above the pool;
a division plate fixedly arranged on the support;
a smashing knife;
a hooking device;
a water inlet pipe at an end of the pool opposite the feeding port;
an overflow port position at a rear end of the pool;
a circulating water pump connected with the overflow port;
a filter screen positioned where the overflow port is connected with the circulating water pump;
a discharge port at the middle tower part of the wall of the pool;
a deflector plate arranged at the bottom of the pool and forming an acute angle with the bottom surface of the pool; and
a residue discharge helix connected with the lower end of the deflector plate,

wherein the upper end of the division plate is fixed on the support, and the lower end of the division plate is connected with the bottom of the pool; the front end of the hooking device stretches into the water, and the rear end of the hooking device stretches out of the pool and is higher than the front end of the pool; the circulating water pump is communicated with the pool via a circulating water pipe, and the deflector plate is arranged below the smashing knife, and
wherein the feeding port positioned at the front end of the pool of the wet water sorting device is arranged below the adaptive conveying belt of the dry smashing and winnowing device, and the waste which cannot be blown is conveyed by the adaptive conveying belt and falls into the pool via the feeding port.

2. The dry-wet combined sorting system for municipal solid waste. of claim 1 , wherein the central axes of the slow revolving knife and the fast revolving knife in the smashing bin are arranged on a movable guide rail, and a spring protection device and an emergency brake switch are arranged on each of one side of the central axis of the slow revolving knife and another side of the central axis of the fast revolving knife.

3. The dry-wet combined sorting system for municipal solid waste of claim 2 , wherein the revolving speed of the fast revolving knife is 5-10 times of that of the slow revolving knife.

4. The dry-wet combined sorting system for municipal solid waste of claim 2 , wherein, the smashing bin includes a left wall and a right wall, the left wall and the right wall of the smashing bin are rotatable walls, and an emergency brake switch is arranged on each of the left wall and the right wall of the smashing bin.

5. The dry-wet combined sorting system for municipal solid waste of claim 2 , wherein the sieve is formed by wire, ropes and a rectangular base structure, the wire ropes are all arranged in parallel on the rectangular base structure, one end of each wire rope is fixed on the rectangular base structure, a heavy object is hung at the other end of each wire rope which goes through a slide fastener, and an emergency brake switch is arranged above each heavy object.

6. The dry-wet combined sorting system for municipal solid waste of claim 5 , wherein the distance between adjacent wire ropes is 50-80 mm.

7. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein the revolving speed of the fast revolving knife is 5-10 times of that of the slow revolving knife.

8. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein, the smashing bin includes a left wall and a right wall, the left wall and the right wall of the smashing bin are rotatable walls, and an emergency brake switch is arranged on each of the left wall and the right wall of the smashing bin.

9. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein the sieve is formed by wire ropes and a rectangular base structure, the wire ropes are all arranged in parallel on the rectangular base structure, one end of each wire rope is fixed on the rectangular base structure, a heavy object is hung at the other end of each wire rope which goes through a slide fastener, and an emergency brake switch is arranged above each heavy object.

10. The dry-wet combined sorting system for municipal solid waste of claim 9 , wherein the distance between adjacent wire ropes 50-80 mm.

11. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein a protective cover is arranged outside the smashing knife on the support in the wet water sorting device.

12. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein the hooking device including hooks, the length of the hooks is 80-120 mm, the hooks stretch into the water for 20-30 mm, and the distance between adjacent hooks is 30-50 mm.

13. The dry-wet combined sorting system for municipal solid waste of claim 12 , wherein the hooking device is made of plastic.

14. The dry-wet combined sorting system for municipal solid waste of claim 1 , wherein the hooking device is made of plastic.

Assignees

• Guangzhou Inst Energy Conversion Cas

Inventors

• Yuan Haoran
• Wang Yazhuo
• Lu Tao
• Chen Yong
• Zhang Chiguang

Classifications

• B02C23/20

  after crushing or disintegrating · CPC title

• B02C23/14

  with more than one separator · CPC title

• B02C23/10

  with separator arranged in discharge path of crushing or disintegrating zone · CPC title

• B03B5/36

  Devices therefor, other than using centrifugal force · CPC title

• B02C23/38

  in apparatus having multiple crushing or disintegrating zones · CPC title