CN209829579U

CN209829579U - Stale refuse screening device

Info

Publication number: CN209829579U
Application number: CN201920455705.0U
Authority: CN
Inventors: 刘力; 孙乐; 满义庆; 卢万来; 肖胜利; 张晓萱; 夏环艺; 刘智洋
Original assignee: TIANJIN SYNDICATE ENERGY ENVIRONMENT ENGINEERING CO LTD
Current assignee: TIANJIN SYNDICATE ENERGY ENVIRONMENT ENGINEERING CO LTD
Priority date: 2019-04-05
Filing date: 2019-04-05
Publication date: 2019-12-24
Anticipated expiration: 2029-04-05

Abstract

The utility model provides a stale waste screening plant, belong to refuse treatment device, plate conveyor synthesizes integrative sieve with the major possession and is connected, plate conveyor tail end sets up the protection casing, plate conveyor top sets up a plurality of homocline poles, homocline pole includes branch and scrapes the material pole with the branch perpendicular is connected, branch just crisscross the setting on plate conveyor's curb plate from plate conveyor's front end to tail end interval, the sieve section of thick bamboo of the integrative sieve is synthesized to the major possession sets up sieve and sieve check, the outside suit guard shield of a sieve section of thick bamboo, a sieve section of thick bamboo is equipped with the feed inlet, the screen underflow discharge gate, the major possession discharge gate, the screen overflow discharge gate, the bottom of screen overflow discharge gate and screen underflow discharge gate all sets up the transportation belt feeder, the head of two transports is connected with the air separator respectively. The utility model has the advantages that: the garbage treatment capacity is large, the fault occurrence rate of the plate type machine is effectively reduced by the protective cover, the material homogenizing rod plays a certain role in protecting subsequent equipment, and the screening quality is improved.

Description

Stale refuse screening device

Technical Field

The utility model belongs to a refuse treatment device, in particular to a stale refuse screening device.

Background

The stale refuse refers to urban domestic refuse filled or stacked in a landfill for many years, and is different from fresh refuse in that after degradation for many years, part of components in the stale refuse lose the original state and properties. And the mutual adhesion among the components is serious, which increases certain difficulty for screening. At present, in a stale waste treatment plant, the following general conditions exist: 1. the general garbage contains certain moisture, and the garbage is easy to agglomerate in cold weather, so that the damage to equipment is increased, the abrasion is large, and the power consumption is increased. 2. The working time is long, even the treatment is carried out day and night, namely people stop the equipment without stopping, the equipment failure rate is high, and the treatment efficiency is low. 3. The excavator is used for directly sending garbage into the plate type machine, the garbage falls onto a chain of the plate type machine, the material clamping phenomenon can occur, the operation of equipment can be influenced by the phenomenon, and therefore a large amount of maintenance is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome foretell defect, provide a stale rubbish screening plant, the refuse handling capacity improves by a wide margin, adopts the integrative sieve of major possession synthesis and multistage selection by winnowing technique, and the screening quality improves to application PLC programmed control promotes the degree of automation of screening line, and the fault rate of whole screening line reduces by a wide margin.

The utility model aims at realizing through the following technical scheme: the utility model provides a stale refuse screening plant which characterized in that: the large comprehensive integrated screen is arranged on a support, the support is arranged at an angle with the ground, the large comprehensive integrated screen comprises a screen cylinder, a feed inlet, a large discharge outlet, a screen underflow discharge outlet and a screen overflow discharge outlet, screen plates are arranged on the screen cylinder from front to back about 2/3 parts, screen lattices are arranged on the screen cylinder about 1/3 parts, the outside suit guard shield of a sieve section of thick bamboo, sieve section of thick bamboo front end are equipped with the feed inlet, and the bottom of sieve section of thick bamboo front end is equipped with undersize thing discharge gate, and the rear end of a sieve section of thick bamboo is equipped with major possession discharge gate, and the bottom of sieve section of thick bamboo rear end is equipped with oversize thing discharge gate, and a sieve section of thick bamboo passes through transmission and is connected with the motor, the bottom of oversize thing discharge gate and undersize thing discharge gate all sets up transports the belt feeder, and the head of two transport belt feeders is connected with.

The winnowing machine is a polygonal roller type winnowing machine, the roller type winnowing machine is arranged on a rack, the rack and the ground have an inclination angle,

the cylinder low side is equipped with the feeder hopper, and the top of feeder hopper is equipped with the feed inlet, and heavy material discharge gate is established to the feeder hopper below, and the fan is installed at the feeder hopper front end, and light material discharge gate is established to the low side of cylinder, sets up heavy object guide baffle and light object guide baffle from the low side to the high-end spiral in proper order in the cylinder, and the spiral opposite direction of two kinds of guide baffles sets up the transportation belt feeder below the heavy material discharge gate. A magnetic separator is arranged above the transferring belt conveyor at the bottom of the discharge hole of the oversize material.

The utility model has the advantages that:

1. the protective cover can protect the transmission and chain parts of the plate conveyor which is frequently scattered and blanked by the excavator, so that the excavator is prevented from falling garbage into the plate conveyor or the transmission part is prevented from stacking the garbage in the loading process, and the fault rate of the plate conveyor is effectively reduced.

2. A plurality of material equalizing rods are added on the plate conveyor, the material wider than the plate conveyor is scraped along with forward conveying of the material, garbage can not fall onto a chain of the plate conveyor, the phenomenon of material blocking can not occur, meanwhile, the accumulated higher material is also scraped, the heavy load of the plate conveyor is lightened, a certain protection effect is achieved on subsequent equipment, and the garbage treatment capacity is greatly improved.

3. The screening quality is improved by adopting a large-piece comprehensive integrated screen and a multi-stage winnowing technology.

4. The PLC programmed control can be applied, the automation degree of the screening wire is improved, and the fault rate of the whole screening wire is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a view from a-a of fig. 1.

Fig. 3 is a view from B-B of fig. 1.

Fig. 4 is a view from direction C-C of fig. 1.

Fig. 5 is a view from direction D-D of fig. 1.

Fig. 6 is a view from E-E of fig. 1.

Fig. 7 is a schematic structural view of the air classifier.

Wherein:

1-plate conveyor, 2-material homogenizing rod, 3-large integrated screen, 4-guide chute, 5-undersize discharge port, 6-oversize discharge port, 7-transfer belt, 8-transfer belt, 9-magnetic separator, 10-air separator, 11-transfer belt, 12-transfer belt, 13-air separator, 14-transfer belt, 15-roller, 16-feed hopper, 17-heavy material discharge port, 18-light material discharge port, 19-heavy material guide baffle, 20-light material guide baffle, 21-protective cover.

Detailed Description

Example (b): as shown in the figure, the screening device for the stale refuse comprises a plate conveyor 1, wherein the tail end of the plate conveyor 1 is connected with a feed inlet of a large comprehensive integrated screen 3, an inverted U-shaped protective cover 21 is arranged at the tail end of the plate conveyor, the protective cover 21 is arranged above a conveyor belt of the plate conveyor, two ends of the protective cover are fixed with two side protective plates of the plate conveyor, the length of the protective cover is about 2.5 meters, a plurality of material equalizing rods 2 are arranged above the plate conveyor 1, each material equalizing rod 2 comprises a supporting rod and a scraping rod which is vertically connected with the supporting rod, the supporting rods are arranged on side plates of the plate conveyor 1 at intervals from the front end to the tail end of the plate conveyor 1 in a staggered mode, the height of the supporting rods from the front end to the tail end of the plate conveyor 1 is gradually reduced, the large comprehensive integrated screen 3 is fixed on a support, the support is arranged at an inclination angle of 0.5-4 degrees with the ground, a screen mesh, 1/3 part of the cylinder wall is provided with a screen grid, the outside of the screen cylinder is sleeved with a shield, the front end of the screen cylinder is provided with a feed inlet, the bottom of the front end of the screen cylinder is provided with an undersize discharge port, the rear end of the screen cylinder is provided with a large discharge port, the bottom of the rear end of the screen cylinder is provided with an oversize discharge port 6, the screen cylinder is connected with a motor through a transmission device, the bottoms of the oversize discharge port 6 and the undersize discharge port 5 are both provided with a transfer belt conveyor 8 and a transfer belt conveyor 7, the transfer belt conveyor 7 is connected with a winnowing machine 13 through a transfer belt conveyor 12, the heavy object discharge port at the bottom of the winnowing machine 13 is provided with a transfer belt conveyor 14 below, the transfer belt conveyor 8 is connected with the winnowing machine 10, the transfer belt conveyor 11 is arranged below the heavy object discharge port 17 of the winnowing machine 10, the winnowing, the top of feeder hopper is equipped with the feed inlet, and heavy material discharge gate 17 is established to the feeder hopper below, and the fan is installed at the feeder hopper front end, and light material discharge gate 18 is established to the low side of cylinder, and the spiral sets up heavy object guide baffle 19 and light object guide baffle 20 from the low side to the high-end in proper order in the cylinder, and the spiral direction of two kinds of guide baffles is opposite, and heavy material discharge gate 17's below sets up transports belt feeder 11, 14, and the top of the transportation belt feeder 8 of oversize material discharge gate 6 bottom sets up magnet separator 9.

The working principle is as follows:

firstly, conveying stale garbage to a plate conveyor 1 by an excavator, arranging a protective cover at the tail end of the plate conveyor, wherein the length of the protective cover is about 2.5 meters, arranging a material-homogenizing rod 2 on the plate conveyor, and gradually reducing the height of a support rod at the tail end from the front end of the plate conveyor 1 by a scraping rod of the material-homogenizing rod 2;

conveying the garbage to a large integrated screen 3 by a plate conveyor for screening, wherein the screening result includes large parts, undersize objects and oversize objects, discharging the large parts through the tail part of a drum screen and falling into a large temporary storage pit through a guide chute 4, discharging the oversize objects onto a transfer belt conveyor 8 through an oversize object discharge port 6 of the drum screen, arranging a magnetic separator 9 above the belt conveyor 8 for effectively separating magnetic metals in the materials, arranging a grade-1 winnowing machine 10 at the head part of the belt conveyor, discharging light objects through the tail end of the winnowing machine, and conveying the heavy objects to a designated position by the transfer belt conveyor 11.

The undersize products fall onto a transfer belt conveyor 7 through an undersize product discharge port 5 of the rotary screen, and are conveyed to a 2-level air separator 13 through a transfer belt conveyor 12, fine light products are discharged through a tail end discharge port of the 2-level air separator, and the rest undersize products are conveyed to a designated position through a transfer belt 14.

Claims

1. The utility model provides a stale refuse screening plant which characterized in that: the large comprehensive integrated screen is arranged on a support, the support is arranged at an angle with the ground, the large comprehensive integrated screen comprises a screen cylinder, a feed inlet, a large discharge outlet, a screen underflow discharge outlet and a screen overflow discharge outlet, screen plates are arranged on the screen cylinder from front to back about 2/3 parts, screen lattices are arranged on the screen cylinder about 1/3 parts, the outside suit guard shield of a sieve section of thick bamboo, sieve section of thick bamboo front end are equipped with the feed inlet, and the bottom of sieve section of thick bamboo front end is equipped with undersize thing discharge gate, and the rear end of a sieve section of thick bamboo is equipped with major possession discharge gate, and the bottom of sieve section of thick bamboo rear end is equipped with oversize thing discharge gate, and a sieve section of thick bamboo passes through transmission and is connected with the motor, the bottom of oversize thing discharge gate and undersize thing discharge gate all sets up transports the belt feeder, and the head of two transport belt feeders is connected with.

2. The stale refuse screening apparatus according to claim 1, wherein: the air separator is polygonal drum type, the drum-type air separator is placed in the frame, there is the inclination frame and ground, the cylinder low side is equipped with the feeder hopper, the top of feeder hopper is equipped with the feed inlet, heavy material discharge gate is established to the feeder hopper below, the fan is installed at the feeder hopper front end, light material discharge gate is established to the low side of cylinder, from the low side in the cylinder to the high-end spiral in proper order set up heavy object guide baffle and light object guide baffle, the spiral opposite direction of two kinds of guide baffles, the below of heavy material discharge gate sets up the transportation belt feeder, the top of the transportation belt feeder of oversize material discharge gate bottom sets up the magnet separator.