WO2016173209A1

WO2016173209A1 - Domestic waste crushing and sorting system

Info

Publication number: WO2016173209A1
Application number: PCT/CN2015/091590
Authority: WO
Inventors: 袁浩然; 王亚琢; 张炽广; 郭华芳; 陈勇
Original assignee: 中国科学院广州能源研究所
Priority date: 2015-04-29
Filing date: 2015-10-09
Publication date: 2016-11-03
Also published as: CN104874582B; CN104874582A

Abstract

Disclosed is a domestic waste crushing and sorting system. The system comprises a quantitative feeding device, a magnetic separation device (10), a gravity gradient sorting device (12), a pendulum-type crushing device, a wind separation device (29) and a needle separation device (22) and a material conveying device. The system has a compact structure, is easy to operate, is safe and reliable, and can sort urban domestic wastes into corrodible organic substances, combustible wastes, metals, glasses and light recyclable substances, thereby not only making full use of the urban domestic wastes but also having high environmental benefits and social benefits.

Description

Domestic garbage crushing and sorting system

Technical field

The invention relates to the field of garbage classification, in particular to a domestic garbage crushing and sorting system.

Background technique

According to statistics, the annual clearing volume of urban domestic garbage in China was about 191 million tons in 2014, and it is growing at an annual rate of 8%-10%. The treatment of urban domestic garbage has become one of the important factors affecting the sustainable development of cities. . At present, there are three types of municipal solid waste disposal methods in China: sanitary landfill, composting and incineration. Among them, incineration can reduce the volume and weight of garbage and produce clean electric energy, which has become a popular treatment. However, the composition of domestic garbage is complex, and the size of garbage is different. Especially, it contains a large amount of kitchen waste, and it is mostly placed in plastic bags, so that the moisture content of domestic garbage is mostly above 50%, which makes the burning of garbage difficult, and the efficiency is low. One of the causes of dioxin. Therefore, by sorting municipal solid waste, we can separate corrosive organic matter, light combustibles, and inorganic substances, and carry out related disposal for various separated substances, so that urban domestic garbage can be fully utilized as a resource. At the same time, it has high environmental and social benefits.

In order to better sort the domestic waste, a lot of research has been done by technicians in the industry. The application for publication No. CN 103551234 A discloses a municipal solid waste crushing and air separation system comprising a primary crushing crushing device and a secondary pendulum crushing device. The air-selection system has good pressing, crushing and sorting effects, can greatly reduce the moisture in the municipal solid waste, and efficiently separates it into combustible and non-combustible materials, and contributes to further subsequent utilization of domestic garbage, and The jaw crusher of the system is connected with a spring device, so that the crushing pressure, crushing effect and processing capacity of the jaw crusher can be adjusted according to the quantity of municipal domestic garbage. In addition, the application for publication No. CN 103611717 A discloses a dry and wet joint sorting system for urban domestic garbage, which comprises a dry pendulum type crushing device and a wet type moisture selecting device, which are driven by different rotational speeds and rotating in the same direction. The knife solves the problems of easy entanglement and jamming when the garbage is broken, and completely separates the corrosive organic matter, the light combustible matter, and the inorganic matter. However, when the above two kinds of garbage sorting systems are used to process large-sized and difficult-to-break garbage, the crusher is still relatively easy to be stuck, and the sorting precision of the above two kinds of garbage sorting systems is not high, and the garbage sorting can be further refined.

To this end, it is necessary to develop a new type of urban domestic waste sorting system to further sort and recycle urban students. Live garbage.

Summary of the invention

The object of the present invention is to provide a municipal solid waste sorting system which is compact in structure, can be continuously produced, has high production efficiency, simple operation, safety and reliability, and completely separates rotten materials, light recyclables and combustible wastes.

In order to achieve the above object, the present invention adopts the following technical solutions:

A domestic garbage crushing and sorting system, in particular, comprising a quantitative feeding device, a pendulum type crushing device, a wind selecting device and a material conveying device;

The quantitative feeding device comprises a quantitative feeding device housing, at least one first feeding port is provided on the top of the quantitative feeding device housing; and at least a adjacent quantitatively feeding device housing is arranged in the quantitative feeding device housing The body swinging No. 1 feeding boom and the No. 2 feeding boom; the No. 1 feeding roller boom and the No. 2 feeding roller boom are respectively provided with a No. 1 feeding roller boom and No. 2 feeding The roller boom is self-rotating and the first feeding roller and the second feeding roller are rotatable relative to the housing of the quantitative feeding device;

The pendulum type crushing device comprises a crushing bin; the top of the crushing bin is provided with at least one No. 2 feeding port; the crushing bin is provided with at least a first crushing roller boom and a No. 2 crushing roller crane which are arranged adjacent to each other for swinging relative to the crushing bin The No.1 crushing roller boom and the No.2 crushing roller boom are respectively provided with a No. 1 crushing roller and No. 2 which can rotate relative to the No. 1 crushing roller boom and the No. 2 crushing roller boom and can rotate relative to the crushing bin. Broken roller

The wind selection device comprises a wind selection chamber; the crushing chamber is located upstream of the wind selection chamber and communicates with the air selection chamber; and at least one side of the wind selection chamber is provided with a fan for screening light recyclable garbage;

The material conveying device comprises a conveyor belt No. 1 , a conveyor belt No. 2 and a conveyor belt No. 4; a conveyor belt No. 1 is arranged at the bottom of the casing of the quantitative feeding device for conveying the domestic garbage fed; the second conveyor belt is at one The downstream end of the conveyor belt and the top of the second feed port are used to connect the quantitative feeding device and the pendulum type crushing device; the fourth conveyor belt is arranged at the bottom of the air-selection chamber for conveying the domestic garbage after the air-selection The fan is above the No. 4 conveyor belt, and the conveying direction of the No. 4 conveyor belt is opposite to the wind speed direction of the fan.

The principle of the invention is as follows:

The garbage to be treated enters the quantitative feeding device casing from the No. 1 feeding port, and falls between the No. 1 feeding roller and the No. 2 feeding roller, and is driven by the No. 1 feeding roller and the No. 2 feeding roller. Drop to the No. 1 conveyor Take the belt and move it downstream of the No. 1 conveyor belt. Subsequently, the garbage leading to the end of the No. 1 conveyor belt fell to the No. 2 conveyor belt, and continued to move downstream of the No. 2 conveyor belt, and finally fell into the No. 2 feed port, into the crushing bin, and the garbage was The number of broken rollers and the No. 2 crushing roller are broken and broken. Subsequently, the broken garbage falls onto the No. 4 conveyor belt and moves downstream of the No. 4 conveyor belt. When the fan in the air-selection room is started, the light recyclable garbage on the No. 4 conveyor belt will move to the upstream of the No. 4 conveyor belt under the wind force. Sorting and recycling of lightweight recyclables can be achieved by providing a lightweight recyclable conveyor belt at the top of the upstream conveyor belt.

The No. 1 feed roller and the No. 2 feed roller are designed to oscillate. Under normal conditions, the No. 1 feed roller and the No. 2 feed roller are kept in a vertical state under the action of gravity. When a large piece of material enters between the No. 1 feed roller and the No. 2 feed roller through the No. 1 feed port, the No. 1 feed roller and the No. 2 feed roller will swing to the sides respectively to avoid the feed card. dead.

The feed roller No. 1 and the feed roller No. 2 may each include a feed runner member, and the feed runner member is uniformly provided with a plurality of feed hooks in the circumferential direction. In order to avoid a large amount of garbage entering the crushing bin at the same time and affecting the crushing effect, the amount of garbage feeding can be controlled by the quantitative feeding device. Specifically, the feed hooks on the No. 1 feed roller and the No. 2 feed roller may be arranged in a staggered manner; the No. 1 feed roller and the No. 2 feed roller have different rotation speeds and opposite rotation directions; No. 1 feed roller The rotation speed of the feed roller and the second feed roller is preferably less than or equal to two revolutions per minute. By adjusting the rotation speed of the No. 1 feed roller and the No. 2 feed roller, it is possible to control the amount of waste dropped onto the No. 1 conveyor belt per unit time.

The No. 1 crushing roller and the No. 2 crushing roller may each comprise a crushing rotor member, and the crushing runner member is uniformly distributed with a plurality of crushing blades in the circumferential direction. In order to avoid the entanglement of the broken knives when the garbage is broken and affect the quality of the broken garbage, the quality of the broken garbage can be ensured by adjusting the rotational speed of the No. 1 crushing roller and the No. 2 crushing roller. Specifically, the crushing knives on the No. 1 crushing roller and the No. 2 crushing roller can be arranged in a staggered manner; the spinning speed of the No. 1 crushing roller and the No. 2 crushing roller are different, and the rotation speed of the No. 1 feeding roller and the No. 2 feeding roller It can be 5 to 10 times different, and the rotation speed of one of the slower rotation speeds should be no less than 10 revolutions per minute, that is, when the rotation speed of the No. 1 crushing roller is slower than the rotation speed of the No. 2 crushing roller, the No. 1 crushing roller The rotation speed is not less than 10 revolutions per minute. The rotation speed of the No. 2 crushing roller can reach 50 revolutions per minute to 100 revolutions per minute. When the rotation speed of the No. 2 crushing roller is slower than the rotation speed of the No. 1 crushing roller, No. 2 The rotation speed of the crushing roller is not less than 10 revolutions per minute, and the rotation speed of the first crushing roller can reach 50 revolutions per minute to 100 revolutions per minute. At the same time, the respective rotation directions of the No. 1 crushing roller and the No. 2 crushing roller can be adjusted. The direction of rotation can be the same or opposite.

In order to further sort the garbage moving downstream of the fourth conveyor belt, the sorting system preferably further has a needle selection device at the downstream end of the fourth conveyor belt. The needle selection device may comprise a self-rotating needle selection wheel member; the rotation direction of the needle selection rotor member is the same as the conveying direction of the fourth conveyor belt; the needle selection rotor member is uniformly distributed with a plurality of sorting needles in the circumferential direction. Further, the needle length H of the sorting needle may be between 80 and 120 mm; the spacing L between the sorting needles may be between 30 and 50 mm; the vertical distance S of the needle selecting device and the fourth conveyor belt may be 20 Between ~30mm. When the garbage moves along the No. 4 conveyor belt to the downstream end of the No. 4 conveyor belt, the combustible waste in the garbage will be picked up by the sorting needle to rotate with the rotating wheel, and the waste residue in the garbage is small. The corrosive material will fall through the gap between the sorting needles. Therefore, a corrosive organic material conveyor belt is disposed on one side of the needle selection device, that is, between the fourth conveyor belt and the needle selection device, so that fine residue such as kitchen waste can be dropped onto the corrodible organic material conveyor belt. The sorting and recovery of the rotten organic matter can be realized; the combustible waste conveyor belt can be arranged on the other side of the needle selection device, so that the combustible waste can be dropped onto the combustible waste conveyor belt to realize the sorting and recovery of the combustible waste.

In addition to light recyclables, corrosive organics and combustible waste, there is often metal waste in domestic waste. In this regard, the downstream end of the first conveyor belt may be provided with an electromagnetic iron remover for adsorbing metal waste in the garbage. When the domestic garbage on the No. 1 conveyor belt moves to the downstream end of the No. 1 conveyor belt, the metal waste in the garbage is adsorbed on the No. 1 conveyor belt and does not fall onto the No. 2 conveyor belt. It is rotated below the No. 1 conveyor belt and moved upstream of the No. 1 conveyor belt. When the metal waste moves a certain distance and is separated from the electromagnetic iron remover, the metal waste falls under the action of gravity. In this way, the separator can be sorted and recovered by providing a separator conveyor belt under the No. 1 conveyor belt.

In addition, household garbage will contain heavy objects such as glass bottles and porcelain. In this regard, the system can also be provided with a gravity gradient sorting conveyor belt inclined to the ground, and the glass bottle is selected by the gravity gradient sorting device, which is convenient for recycling. The gravity gradient sorting conveyor belt may be disposed between the No. 2 conveyor belt and the pendulum type crushing device. Specifically, the gravity slope sorting conveyor belt may be disposed between the downstream end of the No. 2 conveyor belt and the No. 2 feed port. After the garbage is dropped by the No. 2 conveyor belt to the gravity gradient sorting conveyor belt, the surface of the glass bottle and porcelain is smoother and the friction with the conveyor belt is small. The glass bottle and the porcelain are under the action of gravity and along the gravity. The slope sorting conveyor belt rolls off, and the remaining garbage is moved by the gravity gradient sorting conveyor belt to the No. 2 feed port. Therefore, the glass conveyor belt can be sorted and recovered by arranging the glass conveyor belt at the upstream end of the gravity gradient sorting conveyor belt. Further, the angle between the gravity gradient sorting conveyor belt and the ground is preferably Between 25 ° and 35 °.

In order to ensure the quantity of garbage in the quantitative feeding device and the pendulum type crushing device is certain, avoiding the accumulation of garbage, the No. 1 conveyor belt, the No. 2 conveyor belt, the gravity slope sorting conveyor belt, the No. 4 conveyor belt, the glass conveyor belt, The iron remover conveyor belt, the combustible waste conveyor belt, the corrosive organic material conveyor belt, and the light recyclable material conveyor belt are all driven by motors that can be independently adjusted, and the respective rotation speeds of the conveyor belts can be independently adjusted according to actual production conditions.

The invention has simple structure, adopts quantitative feeding for garbage feeding, avoids a large amount of garbage entering the crushing device at the same time, thereby affecting the crushing effect, and ensures the best sorting effect; the feeding roller and the crushing roller are all adopting a pendulum type roller, which does not occur. In the case of material dead, the whole system is safe and reliable; the crushing bin adopts different speed and steering adjustable crushing roller to solve the problem of easy winding when the garbage is broken; the wind-selecting room and the needle selecting device are used to make the high-moisture rotten material It is selected to reduce the moisture content of combustible waste and facilitate subsequent energy utilization. The gravity gradient sorting conveyor belt is used to select glass bottles and porcelain to facilitate subsequent recycling.

DRAWINGS

1 is a schematic view of a municipal solid waste sorting system in an embodiment of the present invention;

2 is a schematic view showing the staggered arrangement of the feed hooks on the No. 1 feed roller and the No. 2 feed roller in the embodiment of the present invention;

3 is a schematic view showing the staggered arrangement of the crushing blades on the No. 1 crushing roller and the No. 2 crushing roller in the embodiment of the present invention;

Figure 4 is a schematic view of a needle selection device in an embodiment of the present invention;

Figure 5 is a schematic view showing the first crushing roller and the second crushing roller in a normal state in the embodiment of the present invention;

Fig. 6 is a schematic view showing the first crushing roller and the second crushing roller opened to both sides in the embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS: 1-No. 1 feed port; 2-Quantitative feeding device housing; 3- No. 1 steel beam; 4-No. 1 feeding roller boom; 5- No. 1 feeding roller; 6-two No. steel beam; 7-second feed roller boom; 8-second feed roller; 9-first conveyor belt; 10-electromagnetic pulley wheel remover; 11-two conveyor belt; 12-gravity gradient sorting conveyor Belt; 13-No. 2 feed port; 14-broken bin; 15-3rd steel beam; 16-No. 1 crushing wheel boom; 17-No. 1 crushing roller; 18-four steel beam; 19-No. 2 broken Roller boom; 20-second crusher roller; 21-fan; 22-needle selection device; 23-four conveyor belt; 24--iron conveyor belt; 25-glass conveyor belt; 26-combustible waste conveyor belt; - Corrosive organic conveyor belt; 28-light recyclable conveyor belt; 29-wind chamber; 30-feed runner member; 31-feed hook; 32-breaking runner member; 33-crushing knife; 221-needle selection runner member; 222-sorting needle.

detailed description

The invention will now be further described with reference to the drawings and embodiments.

The domestic garbage sorting system shown in FIG. 1 includes a quantitative feeding device, a magnetic sorting device, a gravity gradient sorting device, a pendulum crushing device, a wind selecting device, a needle selecting device 22, and a material conveying device.

The dosing device comprises a dosing device housing 2. A top feed port 1 is provided at the top of the dosing device housing 2. The quantitative feeding device housing 2 is provided with a first steel beam 3 and a second steel beam 6 which are adjacently arranged and parallel to each other, and the first feeding roller boom is respectively hinged on the first steel beam 3 and the second steel beam 6 4 and 2 feed roller booms 7. The No. 1 feed roller boom 4 is rotatable relative to the No. 1 steel beam 3, and the No. 2 feed roller boom 7 is rotatable relative to the No. 2 steel beam 6. The No. 1 feed roller boom 4 and the No. 2 feed roller boom 7 are respectively hinged with a No. 1 feed roller 5 and a No. 2 feed roller 8. The No. 1 feed roller 5 can be rotated relative to the No. 1 feed roller boom 4, and the No. 2 feed roller 8 can be rotated relative to the No. 2 feed roller boom. When the No. 1 feed roller boom 4 or the No. 2 feed roller boom 7 rotates relative to the quantitative feeder housing 2, the No. 1 feed roller 5 or the No. 2 feed roller 8 can also be relatively quantitatively fed. The device housing 2 is rotated. As shown in Fig. 2, the first feed roller 5 and the second feed roller 8 are each constituted by a feed runner member 30, and a plurality of feed hooks 31 are evenly distributed in the circumferential direction of the feed runner member 30. The feed rollers 31 of the first feed roller 5 and the second feed roller 8 are arranged in a staggered manner. The first feed port 1 is between the first feed roller 5 and the second feed roller 8. In this embodiment, the rotation speed of the No. 1 feed roller 5 is two revolutions per minute and rotates clockwise; the rotation speed of the No. 2 feed roller 8 is three revolutions per minute, and rotates in the counterclockwise direction.

The pendulum type crushing device includes a crushing bin 14. The second feed port 13 is provided at the top of the crushing bin 14. The crushing bin 14 is provided with an adjacent three-gauge steel beam 15 and a fourth steel beam 18. A No. 1 crushing roller boom 16 and a No. 2 crushing roller boom 19 are respectively hinged on the No. 3 steel beam 15 and the No. 4 steel beam 18. The No. 1 crushing roller boom 16 is rotatable relative to the No. 3 steel beam 15, and the No. 2 crushing roller boom 19 is rotatable relative to the No. 4 steel beam 18. The No. 1 crushing roller boom 16 and the No. 2 crushing roller boom 19 are respectively hinged with a No. 1 crushing roller 17 and a No. 2 crushing roller 20. The No. 1 crushing roller 17 can be rotated relative to the No. 1 crushing roller boom 16, and the No. 2 crushing roller 20 can be rotated relative to the No. 2 crushing roller boom 19. When the No. 1 crushing roller boom 16 or the No. 2 crushing roller boom 19 rotates relative to the crushing bin 14, the No. 1 crushing roller 17 or the No. 2 crushing roller 20 is also It can then rotate relative to the crushing bin 14. As shown in FIG. 3, the first crushing roller 17 and the second crushing roller 20 are each composed of a crushing rotor member 32. The crushing runner member 32 is uniformly distributed with a plurality of crushing blades 33, the first crushing roller 17 and the second crushing member. The crushing knives 33 on the roller 20 are arranged in a staggered manner. The second feed port 13 is between the first crushing roller 17 and the second crushing roller 20. In this embodiment, the rotation speed of the first crushing roller 17 is 10 revolutions per minute and rotates in the clockwise direction; the rotation speed of the second crushing roller 20 is 50 revolutions per minute, and rotates in the counterclockwise direction.

The air selection device is the air selection chamber 29, and the left side of the air selection chamber 29 is provided with a fan 21 for screening lightweight recyclable garbage. The crushing chamber 14 is located above the air-selecting chamber 29 and communicates with the air-selecting chamber 29.

The gravity gradient sorting device is a gravity gradient sorting conveyor belt 12. In this embodiment, the angle α between the gravity gradient sorting conveyor belt 12 and the ground is 30°. The upstream end of the gravity gradient sorting conveyor belt 12 is located below the downstream end of the second conveyor belt 11, and the downstream end of the gravity gradient sorting conveyor belt 12 is located above the second feed port 13.

The material conveying device includes a first conveyor belt 9, a second conveyor belt 11 and a fourth conveyor belt 23. The first conveyor belt 9 is installed at the bottom of the quantitative feeder housing 2; the second conveyor belt 11 is between the first conveyor belt 9 and the gravity gradient sorting conveyor belt 12, and the upstream top end of the second conveyor belt 11 Located downstream of the downstream end of the first conveyor belt 9, the downstream end of the second conveyor belt 11 is located above the upstream top end of the gravity gradient sorting conveyor belt 12; the fourth conveyor belt 23 is installed at the bottom of the air-selection chamber 29, and the air selection The fan 21 in the chamber 29 is above the fourth conveyor belt 23, and the conveying direction of the fourth conveyor belt 23 is opposite to the wind speed direction of the fan 21.

As shown in FIG. 4, the needle selecting device 22 is composed of a needle selecting rotor member 221 and a plurality of sorting needles 222, and the sorting needles 222 are evenly distributed in the circumferential direction of the needle selecting runner member 221. In this embodiment, the needle selection device 22 is located on the left side of the air selection chamber 29, the needle length H of the sorting needle 222 is 100 mm, and the spacing L between the sorting needles 222 on the needle selection wheel member 221 is 45 mm. The vertical distance S between the selection device 22 and the fourth conveyor belt 23, that is, the leftmost vertical distance of the rightmost side of the needle selection device 22 and the fourth conveyor belt 23 is 20 mm.

The magnetic separation device is an electromagnetic pulley wheel remover 10. The electromagnetic pulley remover 10 is mounted on the right side of the first conveyor belt 9, and the pulley as the first conveyor belt 9 drives the first conveyor belt 9 to rotate.

In addition, the material conveying device further includes a iron remover conveyor belt 24, a glass conveyor belt 25, a combustible waste conveyor belt 26, a corrosive organic material conveyor belt 27, and a lightweight recyclable material conveyor belt 28, wherein the iron separator conveyor belt 24 is located at one Below the conveyor belt 9; the glass conveyor belt 25 is located on the gravity gradient sorting conveyor belt 12 Below the top of the swim; the combustible waste conveyor belt 26 is located at the lower left of the needle selection device 22; the rotatable organic matter conveyor belt 27 is located at the lower right of the needle selection device 22, between the needle selection device 22 and the fourth conveyor belt 23; The recyclable conveyor belt 28 is located at the lower right of the air-selection chamber 29. At the same time, the first conveyor belt 9, the second conveyor belt 11, the fourth conveyor belt 23, the iron conveyor belt 24, the glass conveyor belt 25, the combustible waste conveyor belt 26, the rotten organic conveyor belt 27 and the lightweight recyclables The conveyor belts 28 are all driven by motors that can be independently regulated, and the respective rotational speeds of the conveyor belts can be independently adjusted.

The system is started, and the garbage is put into the feed port 1 of the first one. The garbage is driven by the first feed roller 5 and the second feed roller 8, and is dropped onto the first conveyor belt 9, and the first conveyor belt 9 is turned to the right. When the garbage reaches the rightmost end of the No. 1 conveyor belt 9, the scrap iron is sucked by the electromagnetic pulley wheel remover 10, is turned to the lower side of the electromagnetic pulley wheel remover 10, falls into the iron remover conveyor belt 24 and is collected, and the remaining garbage falls. The second conveyor belt 11, which in turn moves to the rightmost side of the second conveyor belt 11, falls onto the gravity gradient sorting conveyor belt 12. After the garbage enters the gravity gradient sorting conveyor belt 12, due to the effect of gravity and slope, the components such as glass bottles in the garbage slide off from the inclined surface of the gravity gradient sorting conveyor belt 12, fall into the glass conveyor belt 25, and are separated and recovered. The remaining garbage enters the second feed port 13 through the gravity gradient sorting conveyor belt 12, thereby falling into the crushing bin 14, and the garbage in the crushing bin 14 is different due to the rotation speed of the first crushing roller 17 and the second crushing roller 20 It is broken and broken and falls into the air chamber 29. The garbage entering the air-selection chamber 29, under the action of the blower 21, the light recyclable material is blown to the right side, falls into the lightweight recyclable material conveying belt 28, and the non-blown garbage is sent to the left by the fourth conveyor belt 23. On the side, small crumbs such as kitchen residue fall through the gap between the sorting needles 222 into the corrosive organic material conveying belt 27, and the combustible waste is picked up by the sorting needle 222 due to the large volume, and falls into the combustible waste conveying. With 26, the garbage is divided into five categories: corrosive organic matter, combustible waste, metal, glass and light recyclables, which is beneficial for the next classification and utilization.

As shown in Figures 5 and 6, in the normal state, due to the self-weight of the No. 1 crushing roller 17 and the No. 2 crushing roller 20, the No. 1 crushing roller boom 16 and the No. 2 crushing roller boom 19 are perpendicular to the ground; Large pieces of hard-to-break garbage, after the broken knife is stuck, the No. 1 crushing roller 17 and the No. 2 crushing roller 20 will rotate with the No. 1 crushing roller boom 16 and the No. 2 crushing roller boom 19, opening to both sides, large The pieces of hard-to-break garbage fall off and protect the broken knife.

The detailed description of the present invention is not intended to limit the scope of the invention, and the equivalents and modifications of the present invention are included in the scope of the patent. .

Claims

The utility model relates to a domestic garbage crushing and sorting system, which is characterized in that: a quantitative feeding device, a pendulum type crushing device, a wind selecting device and a material conveying device are included;

The quantitative feeding device comprises a quantitative feeding device housing; the top of the quantitative feeding device housing is provided with at least one first feeding port; and the quantitative feeding device housing is provided with at least adjacently disposed The first feeding boom and the second feeding boom swinging relative to the housing of the quantitative feeding device; the first feeding roller boom and the second feeding roller boom are respectively provided with the first feeding The roller boom and the second feeding roller boom are self-rotating and the first feeding roller and the second feeding roller which are rotatable relative to the housing of the quantitative feeding device;

The pendulum type crushing device comprises a crushing bin; the top of the crushing bin is provided with at least one No. 2 feed port; and the crushing bin is provided with at least one adjacent crushing wheel boom which can be oscillated relative to the crushing bin And the No. 2 crushing roller boom; the No. 1 crushing roller boom and the No. 2 crushing roller boom are respectively provided with a first crushing roller boom and a No. 2 crushing roller boom rotating and rotatable relative to the crushing bin No. 1 crushing roller and No. 2 crushing roller;

The air separation device includes a wind selection chamber; the crushing chamber is located upstream of the wind selection chamber and communicates with the air selection chamber; and at least one side of the wind selection chamber is provided with a fan for screening light recyclable garbage;

The material conveying device comprises a first conveyor belt, a second conveyor belt and a fourth conveyor belt; the first conveyor belt is arranged at the bottom of the quantitative feeding device housing for conveying the domestic garbage fed; The conveyor belt is located at the downstream end of the first conveyor belt and the top of the second feed port for connecting the quantitative feeding device and the pendulum type crushing device; the fourth conveyor belt is disposed at the bottom of the air-selecting chamber for The domestic garbage after the wind selection is conveyed; the fan is located above the fourth conveyor belt, and the conveying direction of the fourth conveyor belt is opposite to the wind speed direction of the fan.
The domestic garbage crushing and sorting system according to claim 1, wherein the first feed roller and the second feed roller each comprise a feed runner; the feed runners are circumferentially distributed. a plurality of feed hooks; the feed hooks on the No. 1 feed roller and the No. 2 feed roller are staggered; the No. 1 feed roller and the No. 2 feed roller have different rotation speeds and opposite rotation directions; The rotation speed of the No. 1 feed roller and the No. 2 feed roller is less than or equal to two revolutions per minute.
The domestic garbage crushing and sorting system according to claim 1, wherein the first crushing roller and the second crushing roller each comprise a crushing rotor; the crushing runner has a plurality of circumferentially distributed The crushing knife; the crushing knife on the No. 1 crushing roller and the No. 2 crushing roller are staggered; the rotation speed of the No. 1 crushing roller and the No. 2 crushing roller are 5 to 10 times, and one of the slower rotation speeds The rotation speed is not less than 10 revolutions per minute; the rotation speed of the No. 1 crushing roller and the No. 2 crushing roller are the same or opposite.
The domestic garbage crushing and sorting system according to claim 1, further comprising: a needle selecting device at a downstream end of the fourth conveying belt; the needle selecting device comprising a self-rotating needle selecting rotating wheel member; The direction of rotation of the needle-selecting wheel member is the same as that of the fourth conveyor belt; the needle-selecting wheel member is uniformly distributed with a plurality of sorting needles in the circumferential direction.
The household garbage crushing and sorting system according to claim 4, wherein the needle length H of the sorting needle is between 80 and 120 mm; and the spacing L between the sorting needles is between 30 and 50 mm; The vertical distance S between the needle selection device and the fourth conveyor belt is between 20 and 30 mm.
The domestic garbage crushing and sorting system according to claim 4, characterized in that: a corrosive organic material conveying belt is arranged between the fourth conveying belt and the needle selecting device, and the corrodible organic material conveying belt can be independently adjusted The motor is driven; the other side of the needle selection device is provided with a combustible waste conveyor belt, and the combustible waste conveyor belt is driven by an independently adjustable motor.
The domestic garbage crushing and sorting system according to claim 1, wherein: the downstream end of the first conveyor belt is provided with an electromagnetic iron remover for adsorbing metal waste in the garbage; the first conveyor belt A separator conveyor belt is arranged below; the iron separator conveyor belt is driven by an independently adjustable speed motor.
The domestic garbage crushing and sorting system according to claim 1, further comprising: a gravity gradient sorting conveyor belt inclined to the ground; the gravity gradient sorting conveyor belt is disposed at a downstream end of the second conveyor belt and two Between the feed inlets; the angle between the gravity gradient sorting conveyor belt and the ground is between 25° and 35°; the gravity gradient sorting conveyor belt is driven by an independently adjustable speed motor.
The domestic garbage crushing and sorting system according to claim 1, wherein the material conveying device further comprises a lightweight recyclable conveying belt, and the lightweight recyclable conveying belt is driven by an independently adjustable speed motor. The No. 1 conveyor belt, the No. 2 conveyor belt, and the No. 4 conveyor belt are driven by motors that can be independently regulated.