CN201053681Y - Centralized compact waste incineration pretreatment system - Google Patents

Abstract

The centralized and compact garbage incineration pretreatment system of the utility model includes a truck unloading platform, a garbage pretreatment device, a garbage grab crane and a garbage bin. The pretreatment device is provided with a material receiving hopper, and the material receiving hopper is arranged in the garbage bin, and the garbage feeding position is in the garbage bin, and the processed garbage is returned to the garbage bin. The garbage pretreatment device includes an apron feeder, a first belt conveyor, a garbage crusher, and a second belt conveyor; the receiving funnel is connected to the apron feeder, and the apron feeder is connected to the first belt conveyor machine, the first belt conveyor is connected to the inlet of the powerful garbage crusher; the outlet of the powerful garbage crusher is connected to the second belt conveyor, and the other end of the second belt conveyor is connected to the garbage bin. With the above structure, a centralized and compact waste incineration pretreatment system can be obtained that can overcome the disadvantages of setting up a pretreatment system in an independent factory building, provide a good operating environment, run stably, and have operational flexibility.

Description

Centralized compact waste incineration pretreatment system

technical field

The utility model relates to the pretreatment of garbage, in particular to a centralized and compact garbage incineration pretreatment system for incinerating garbage in a fluidized bed furnace.

Background technique

With the development of our country's economy and the acceleration of urbanization, the per capita output of urban domestic waste is gradually increasing, and the calorific value of waste is increasing year by year. More and more cities use incineration to treat waste in order to save land and recycle energy, and realize waste disposal. harm, reduction and resource utilization.

The types of furnaces for incinerating waste mainly include grate furnaces and fluidized bed furnaces. The process of incinerating waste in fluidized bed furnaces occupies a considerable proportion due to low investment, high localization rate, and low operating costs. At present, my country has put into production or is under construction There are more than 30 projects. Compared with the grate furnace, from the perspective of operating conditions, the annual operation rate of fluidized bed furnace incineration of waste is relatively low. The reason is that fluidized bed furnace is suitable for incineration of materials with smaller pieces, and domestic waste in my country is generally not classified. , The composition of the garbage entering the factory is very complex, with different sizes and shapes, which can easily cause blockage of the feeding system in front of the furnace. In addition, the metal in the garbage will also destroy the fluidization condition and force the furnace to stop. Therefore, the key to incinerating waste in a fluidized bed furnace is whether the feeding is smooth and whether the ferromagnetic substances can be removed.

There are two ways to feed waste into the furnace for incineration in fluidized bed furnaces: one is to directly enter the furnace without pretreatment; the other is to set up a pretreatment system, and the waste is pretreated before entering the furnace.

The way of directly entering the furnace is that the garbage is unloaded into the garbage bin, and the grab crane grabs the garbage from the garbage bin, puts it into the feeding system in front of the furnace, and sends it into the incinerator by the conveying equipment in front of the furnace. Due to the complex composition of the garbage, when the garbage passes through the conveying equipment, it is easy to cause blockage and entanglement of the conveying equipment, the ferromagnetic substances cannot be removed, the equipment failure rate is high, the probability of furnace shutdown is high, and the operating conditions are poor.

As shown in Figure 6, the way in which garbage is pretreated into the furnace is generally used to set up a garbage pretreatment device 2 separately. Device 2 (belt feeder or chain plate conveying equipment, after screening or crushing, is conveyed by belt conveyor) into the garbage bin (another factory building), and then grabbed by the grab crane 4 in the garbage bin 3 and sent to the front of the furnace Feed hopper.

The disadvantages of setting up the preprocessing system separately mainly include:

(1) The flexibility is poor. All the garbage must pass through the pretreatment room, and the pretreatment room and the garbage bin are connected by transport machinery (such as a belt conveyor). Troubleshooting of the pretreatment system will definitely affect the operation of the waste incineration system.

(2) Special feeding equipment is required. Because the garbage trucks arrive at the factory in a relatively concentrated time, more unloading points are required, and the unloading points of the pretreatment system that are set alone cannot meet the requirements. The garbage unloaded on the ground needs to be added to the feed hopper of the pretreatment system with special equipment. Usually The equipment used is a forklift.

(3) Building a pretreatment plant separately requires a large area and high investment costs.

Utility model content

The purpose of the utility model is to provide a centralized and compact garbage incineration pretreatment system to provide a pretreatment system that can overcome the shortcomings of an independent pretreatment system, provide a good operating environment, and run stably and has flexibility.

The technical scheme adopted by the utility model centralized and compact garbage incineration pretreatment system is as follows:

A centralized and compact garbage incineration pretreatment system, including a truck unloading platform, a garbage pretreatment device, a garbage grab crane and a garbage bin. The material receiving funnel is arranged in the garbage bin. The garbage feeding position is in the garbage bin, and the treated garbage is returned to the garbage bin.

The garbage pretreatment device further includes an apron feeder, a first belt conveyor, a garbage powerful crusher, and a second belt conveyor; wherein, the receiving funnel is connected to the apron feeder, and the apron feeder is connected to the second apron feeder. A belt conveyor, the first belt conveyor is connected to the inlet of the powerful garbage crusher; the outlet of the powerful garbage crusher is connected to the second belt conveyor, and the other end of the second belt conveyor is connected to the garbage warehouse.

The garbage pretreatment device further includes a first strong magnetic iron remover, a second strong magnetic iron remover and a third belt conveyor; wherein, the first strong magnetic iron remover is arranged in front of the feeding port of the garbage powerful crusher, the A third belt conveyor is provided between the second belt conveyor and the garbage bin, and the second strong magnetic iron remover is located at the junction of the second belt conveyor and the third belt conveyor.

There is a bridge breaking device in the receiving funnel.

The centralized and compact waste incineration pretreatment system has a sealed structure and is equipped with air supply and exhaust devices.

The head of the apron feeder is equipped with a uniform feeding device for keeping the conveyed material uniform.

There is a broken bag screening machine or manual screening platform in front of the powerful garbage crusher.

The beneficial effects of the utility model centralized and compact garbage incineration pretreatment system are as follows:

1. Make full use of the existing site and process facilities. The garbage pretreatment device is located under the unloading platform, making full use of the space under the unloading platform. There is no need to set up a special pretreatment room, saving land and investment.

2. Flexible operation and reliable operation. When the garbage truck arrives at the factory, it can be directly unloaded into the feeding hopper, or it can also be unloaded into the garbage bin; the untreated garbage in the garbage bin can be sent back to the feeding hopper by the garbage grab crane.

3. It is conducive to the realization of environmental protection measures. Because it is arranged indoors and close to the garbage bin, it is convenient for ventilation and leachate collection and discharge.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model centralized compact waste incineration pretreatment system;

Fig. 2 is the enlarged schematic diagram of the top view structure of I-I plane in Fig. 1;

Fig. 3 is the enlarged schematic view of the local structure of II-II plane in Fig. 2;

Fig. 4 is the enlarged schematic view of the local structure in the A direction in Fig. 2;

FIG. 5 is an enlarged schematic diagram of a local structure in the B direction in FIG. 2;

Fig. 6 is a schematic structural diagram of an existing garbage pretreatment system.

【Description of figure number】

1 unloading platform 2 garbage pretreatment device

3 Garbage warehouse 4 Garbage grab

21 Material receiving hopper 22 Apron feeder

23 The first belt conveyor 24 Garbage powerful crusher

25 The second belt conveyor 26 The first strong magnetic iron remover

27 The second strong magnetic iron remover 28 The third belt conveyor

221 Uniform feeding device

Detailed ways

Shown in Figure 1-5 is a preferred specific embodiment of the present invention. The utility model's centralized and compact garbage incineration pretreatment system includes a truck unloading platform 1, a garbage pretreatment device 2, a garbage grab crane 4 and a garbage bin 3, wherein: the garbage pretreatment device 2 is set under the truck unloading platform 1, and the garbage The pretreatment device 2 is provided with a material receiving funnel 21 , and the material receiving funnel 21 is arranged in the garbage bin 3 . The garbage pretreatment device 2 further includes an apron feeder 22, a first belt conveyor 23, a garbage powerful crusher 24, a second belt conveyor 25, a first strong magnetic iron remover 26, a second strong magnetic separator Ironware 27 and the third belt conveyor 28; wherein, the material receiving hopper 21 is connected to the apron feeder 22, and the apron feeder 22 is connected to the first belt conveyor 23, and the first belt conveyor 23 is connected to the garbage The feed port of the powerful crusher 24; the first strong magnetic iron remover 26 is located in front of the feed port of the garbage powerful crusher 24, and the third belt conveyor is provided between the second belt conveyor 25 and the garbage bin 3 28. The second strong magnetic iron remover 27 is located at the junction of the second belt conveyor 25 and the third belt conveyor 28 . In addition, a bridging device (not shown) is provided in the receiving hopper 21 to prevent the bridging of garbage in the receiving hopper. The head of the apron feeder 22 is provided with a uniform feeding device 221 for keeping the conveyed material uniform. In addition, a bag-breaking screening machine or a manual screening platform can also be provided in front of the garbage powerful crusher, so that the utility model can handle more complicated garbage processing.

In addition, multiple garbage pretreatment devices 2 of the present invention can be provided. In the specific embodiment of the present utility model shown in FIG. 2 , there are two garbage pretreatment devices 2 .

The garbage pretreatment process using the utility model's centralized and compact garbage incineration pretreatment system is as follows: please refer to Figure 2, where the arrows are the logistics direction of garbage material operation.

The garbage is directly poured into the receiving hopper 21 by the garbage truck through the unloading platform 1, and then sent to the first belt conveyor 23 through the apron feeder 22. The receiving hopper 21 is provided with a bridge breaking device to prevent the garbage in the receiving hopper 21 from Bridging; the garbage passes through the uniform feeding device 221 provided at the head of the apron feeder 22 to keep the uniformity of the conveying materials. The rubbish arrives at the first belt conveyor 23 from the apron feeder 22, and passes through the first strong magnetic iron remover 26 installed in front of the rubbish powerful crusher 24 to remove ferromagnetic substances in the rubbish for the first time. Afterwards, the garbage after removing ferromagnetic substances for the first time enters the garbage powerful shredder 24 for crushing. The crushed garbage reaches the second belt conveyor 25 from the outlet of the powerful garbage crusher 24, and passes through the second strong magnetic iron remover 27 to remove the remaining ferromagnetic substances, and finally, the garbage enters through the third belt conveyor 28 Garbage bin, forming a finished product area. In this way, through the process of removing ferromagnetic substances twice, the iron lumps in the garbage can be eliminated to the greatest extent, and the role of protecting the crusher and incinerator equipment can be played. During the peak period of garbage truck unloading, the garbage that is too late to be unloaded into the receiving hopper 21 can be temporarily unloaded into the garbage bin 3. After the peak period of unloading, it can be grabbed and lifted into the receiving hopper 21 by the garbage, and then processed.

In this centralized compact garbage incineration pretreatment system, some equipment can be increased or decreased according to the nature of the local garbage, such as a broken bag screening machine or a manual screening platform (not shown in the figure) can be provided before the garbage powerful crusher.

The centralized and compact waste incineration pretreatment system can also be equipped with an air supply and exhaust system to improve working conditions. The entire waste pretreatment plant is a sealed plant, and the exhaust air is sent to the garbage bin. All conveying equipment adopts a sealed method, and the leachate that may be generated is collected in separate points and collected in the collection main pipe to be discharged to the leachate collection pool in a centralized manner.

Claims (7)

1. concentrated compact pretreatment system for incineration of garbage, comprising unload platform, rubbish pretreatment unit, rubbish grabs and hangs and trash repository, it is characterized in that: this rubbish pretreatment unit is located under the unload platform, this rubbish pretreatment unit is provided with receiving cone, this receiving cone is located in the trash repository, and rubbish returns trash repository after preliminary treatment.

2. concentrated compact pretreatment system for incineration of garbage as claimed in claim 1 is characterized in that:

The rubbish pretreatment unit more includes apron feeder, first ribbon conveyer, rubbish super power crusher, second ribbon conveyer;

Wherein, this receiving cone connects apron feeder, and this apron feeder connects first ribbon conveyer, and this first ribbon conveyer connects rubbish super power crusher feeding mouth;

The discharging opening of this rubbish super power crusher connects second ribbon conveyer, and this second ribbon conveyer end in addition connects trash repository.

3. concentrated compact pretreatment system for incineration of garbage as claimed in claim 2 is characterized in that this rubbish pretreatment unit more includes first ferromagnetic deironing device, second ferromagnetic deironing device and the 3rd ribbon conveyer;

Wherein, before first ferromagnetic deironing device is located at the feeding mouth of rubbish super power crusher, be provided with the 3rd ribbon conveyer between this second ribbon conveyer and trash repository, this last the second magnetic magnetic separator de-ironing is located at the junction of second ribbon conveyer and the 3rd ribbon conveyer.

4. as claim 1,2 or 3 described concentrated compact pretreatment system for incineration of garbage, it is characterized in that, in receiving cone, be provided with brokenly bridging device.

5. as claim 1,2 or 3 described concentrated compact pretreatment system for incineration of garbage, it is characterized in that this concentrated compact pretreatment system for incineration of garbage is a hermetically-sealed construction, and be provided with air-supply and air exhausting device.

6. as claim 2 or 3 described concentrated compact pretreatment system for incineration of garbage, it is characterized in that this apron feeder head is provided with and is used to keep the uniformly even poking device of convey materials.

7. as claim 2 or 3 described concentrated compact pretreatment system for incineration of garbage, it is characterized in that, before the rubbish super power crusher, be provided with broken bag screening machine or artificial screening platform.

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