CN204421013U - Domestic garbage pyrolysis reduction treatment system - Google Patents

Abstract

The utility model discloses a domestic waste pyrolysis reduction treatment system, which comprises a waste heat drying device and a pyrolysis device connected to each other. The waste heat drying device is provided with a discharge bin. The waste heat drying device is also connected with the pyrolysis device through a smoke exhaust pipe arranged on the pyrolysis device. The utility model provides a domestic garbage pyrolysis reduction treatment system, which can make good use of the high-heat flue gas generated in the pyrolysis process to preheat and dry the garbage to be treated, greatly improving the garbage processing efficiency and reducing the garbage consumption. The energy consumption of the treatment further reduces the cost of input for waste treatment.

Description

Domestic waste pyrolysis reduction treatment system

technical field

The utility model relates to a garbage treatment system, in particular to a pyrolysis reduction treatment system used in the treatment of household garbage.

Background technique

Now the amount of urban domestic waste is increasing day by day, which makes the pressure of domestic waste disposal increase. There are incineration treatment and pyrolysis treatment in the thermal treatment of domestic waste, but the heat utilization rate of incineration treatment is not high, it is non-uniform combustion, and it will inevitably cause air pollution, especially the generation of dioxins. The development of waste creates a great constraint. However, pyrolysis treatment is heated in an oxygen-free or oxygen-deficient atmosphere, and the thermal instability of organic matter is used to crack, which avoids the formation of dioxins in principle and greatly reduces the pollution to the atmosphere. Garbage will form three states. Solid, liquid, and gas all have high calorific value. They can all be used as high-quality renewable energy, which can be stored and transported. the effective way.

Utility model content

The purpose of the utility model is to provide a domestic garbage pyrolysis reduction treatment system, which can make good use of the high-heat flue gas generated in the pyrolysis process to preheat and dry the garbage to be treated, greatly improving the garbage treatment efficiency, The energy consumption of waste disposal is reduced, and the cost of input required for waste disposal is further reduced.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

The domestic waste pyrolysis reduction treatment system includes a waste heat drying device and a pyrolysis device connected to each other. The waste heat drying device is provided with a discharge bin, and the waste heat drying device is connected with the pyrolysis device through the discharge bin. The waste heat The drying device is also connected with the pyrolysis device through a smoke exhaust pipe arranged on the pyrolysis device.

Further, the above-mentioned waste heat drying device includes a dryer, the end of the smoke exhaust pipe is connected to the dryer, a feeding belt conveyor is arranged at the feed port of the dryer, and a roller holder is fixed on the dryer. The roller and drum drive device, the discharge bin is set at the discharge end of the dryer, the lower end of the discharge bin is provided with a discharge channel connected to the pyrolysis device, and the upper end of the discharge bin is also provided with an exhaust port.

As a preference, a pipeline is provided on the exhaust port of the discharge bin, and the pipeline is provided with a No. 1 induced draft fan, a cyclone dust collector and a No. 1 spray dust collector in sequence.

Still further, the above-mentioned pyrolysis device includes a screw feeder connected to the discharge bin through a discharge channel and a double-drum reactor connected to the screw feeder, and a roller is also arranged on the double-drum reactor. The driving device, the drum idler and the combustion chamber, the combustion chamber is connected to the dryer through the smoke exhaust pipe, and the air intake pipe is connected to the combustion chamber. The chamber is connected to the dryer through a smoke exhaust pipe. A sealing cover is provided at the material inlet of the double-barrel reactor, and a screw discharger is also provided at the outlet. A gas collection hood and a sensor are also arranged at the gas port, a gas collection pipeline is arranged on the gas collection hood, and a gas processing and collecting device is connected to the gas collection pipeline.

Furthermore, the above-mentioned gas processing and collecting device includes No. 2 spray dust collector, condenser, No. 2 induced draft fan and gas collection tank connected in sequence, and the gas collection tank is also connected to the intake pipe through a pipeline.

As a preference, the No. 2 spray dust collector is also provided with an explosion-proof pool.

In addition, the double-barreled reactor also includes an inner reaction cylinder and an outer reaction cylinder, inner guide vanes and outer guide vanes are respectively arranged inside the inner reaction cylinder and the outer reaction cylinder, and the inner guide vanes and the outer guide vanes The blades are all arranged in a spiral shape.

Preferably, the inner guide vanes and the outer guide vanes are arranged in opposite helical shapes.

As another preference, the inner guide vane and the outer guide vane are arranged in a spiral shape with the same direction.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) The utility model connects the dryer and the combustion chamber through the smoke exhaust pipe, and the high-temperature flue gas after the combustion of the gas in the combustion chamber is sent to the dryer through the smoke exhaust pipe to preheat and dry the household garbage. Drying treatment reduces the energy consumed in the drying process of the dryer and the time required for preheating and drying, thereby reducing the cost of equipment use;

(2) The utility model is equipped with a gas collection tank, which can collect the combustible gas generated after the pyrolysis of garbage, and send the collected combustible gas into the combustion chamber for combustion and heating, thereby reducing the demand for external energy , which further reduces the cost of equipment use and better saves production resources;

(3) The utility model adopts a double-barreled reactor, which greatly increases the residence time of the garbage to be processed in the combustion chamber, improves its pyrolysis rate, and at the same time does not increase the occupied space of the equipment, saving the production space of the enterprise .

Description of drawings

Fig. 1 is the system connection diagram of the present utility model.

Fig. 2 is a schematic structural diagram of the double-barreled reactor of the present invention.

Description of reference signs: 1. Feeding belt conveyor; 2. Dryer; 3. No. 1 induced draft fan; 4. Cyclone dust collector; 5. No. 1 spray dust collector; 6. Inner reaction cylinder; 7. Inner guide Flow vane; 8. Outer reaction cylinder; 9. Outer guide vane; 10. Feeding channel; 11. Screw feeder; 12. Sensor; 13. Gathering hood; 14. Sealing cover; 15. Double cylinder reaction Kettle; 16. Combustion chamber; 17. Smoke exhaust pipe; 18. Combustion head; 19. Air intake pipe; 20. Drum driving device; , No. 2 spray dust collector; 25, condenser; 26, No. 2 induced draft fan; 27, explosion-proof pool; 28, oil collection pool; 29, gas collection tank; 30, discharge bin.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples. The implementation of the utility model includes but not limited to the following examples.

Example 1

As shown in Figure 1-2, the domestic waste pyrolysis reduction treatment system includes a waste heat drying device and a pyrolysis device connected to each other. The waste heat drying device is provided with a discharge bin 30, and the waste heat drying device passes through the discharge bin 30 is connected with the pyrolysis device, and the waste heat drying device is also connected with the pyrolysis device through the exhaust pipe 17 arranged on the pyrolysis device.

The above-mentioned waste heat drying device includes a dryer 2, the end of the smoke exhaust pipe 17 is connected to the dryer 2, and a feeding belt conveyor 1 is arranged at the feed port of the dryer 2. Also be fixed with drum supporting roller 21 and drum driving device 20, discharge bin 30 is arranged on the discharge end of dryer 2, is provided with the unloading channel 10 that is connected on the pyrolysis device at the lower end of discharge bin 30, in The upper end of the discharge bin 30 is also provided with an exhaust port.

The exhaust port of the discharge bin 30 is provided with a pipeline, and the pipeline is provided with a No. 1 induced draft fan 3 , a cyclone dust collector 4 and a No. 1 spray dust collector 5 in sequence.

Above-mentioned pyrolysis device comprises the screw feeder 11 that links to each other with discharge bin 30 by discharge passage 10 and the twin-barrel reactor 15 that links to each other with this screw feeder 11, is also arranged on this twin-barrel reactor 15 Drum driving device 20, drum supporting roller 21 and combustion chamber 16 are arranged, and this combustion chamber 16 is connected on the dryer 2 through exhaust pipe 17, and is connected with air inlet pipe 19 on combustion chamber 16, and this air inlet pipe 19 is connected with A combustion head 18 is provided at the connection position of the combustion chamber 16, and the combustion chamber 16 is connected to the dryer 2 through a smoke exhaust pipe 17, and a sealing cover 14 is provided at the inlet of the double-barreled reactor 15. A screw discharge machine 22 is also provided at the mouth, and a gas collection hood 13 and a sensor 12 are also provided at the exhaust port of the double-barreled reactor 15. The gas collection hood 13 is provided with a gas collection pipeline 23, and A gas processing and collecting device is also connected to the gas collecting pipeline. The sensor can measure the pressure, temperature and other data inside the double-barreled reactor very well. According to the data measured by the sensor, the operation of the equipment can be well judged, and at the same time, the operation of the equipment can be adjusted according to these data. , greatly improving the stability and safety of equipment operation.

The above-mentioned gas processing and collecting device includes the No. 2 spray dust collector 24, the condenser 25, the No. 2 induced draft fan 26 and the gas collecting tank 29 connected in sequence, and the gas collecting tank 29 is also connected to the intake pipe 19 through a pipeline.

The No. 2 spray dust collector 24 is also provided with an explosion-proof pool 27 . The explosion-proof pool can well avoid the explosion of combustible gas in the process of processing and damage the equipment, which greatly improves the service life and safety of the equipment.

The double-barreled reactor 15 also includes an inner reaction cylinder 6 and an outer reaction cylinder 8, the inside of the inner reaction cylinder 6 and the outer reaction cylinder 8 are respectively provided with an inner guide vane 7 and an outer guide vane 9, and the inner guide vane Both the vane 7 and the outer guide vane 9 are arranged in a spiral shape.

The inner guide vanes 7 and the outer guide vanes 9 are arranged in opposite helical shapes.

When in use, the household garbage that needs to be processed is sent into the dryer by the feeding belt conveyor, and the dryer rotates under the drive of the drum drive device, and the household garbage moves forward with the rotation of the dryer until it is sent into and out of the dryer. Silo. In the discharge bin, the solid waste enters the discharge channel downwards, and the gas waste gas is discharged from the exhaust port, treated by the cyclone dust collector and No. 1 spray dust collector, and then discharged into the atmosphere. The solid waste after drying and preheating is sent to the screw feeder through the feeding channel, and then sent to the inner reaction cylinder of the double-barrel reactor by the screw feeder. The double-barrel reactor is driven by the roller driving device It rotates and drives the garbage to move from the outside to the inside. After moving to the bottom, the garbage falls from the inner reaction cylinder into the outer reaction cylinder and then reverses in the outer reaction cylinder until the garbage is sent to the screw discharger for discharge. There is a combustion chamber on the outside of the outer reaction cylinder. The combustible gas is fed into the air inlet pipe and ignited by the combustion head to generate high temperature to heat the double cylinder reactor to support its pyrolysis reaction. The high temperature gas generated after combustion passes through the smoke exhaust pipe. It is sent into the dryer to dry and preheat domestic waste, and the gas generated in the pyrolysis reaction is collected by the collection cover and sent to the No. 2 spray dust collector and condenser for impurity removal through the gas collection pipe. With condensation treatment, the treated gas is collected by the gas collection tank and supplied to the combustion chamber again for combustion.

Example 2

The difference between this embodiment and Embodiment 1 is that the inner guide vanes 7 and the outer guide vanes 9 are arranged in a spiral shape with the same direction. When working, the inner reaction cylinder and the outer reaction cylinder rotate in reverse.

According to above-mentioned embodiment, just can realize the utility model well. It is worth noting that, based on the premise of the above-mentioned structural design, in order to solve the same technical problem, even if some insubstantial changes or embellishments are made on the utility model, the essence of the technical solution adopted is still the same as that of the utility model. same, so it should also be within the protection scope of the present utility model.

Claims (9)

1. The domestic waste pyrolysis reduction treatment system is characterized in that it includes a waste heat drying device and a pyrolysis device connected to each other, and a discharge bin (30) is arranged on the waste heat drying device, and the waste heat drying device passes through the discharge bin (30) It is connected with the pyrolysis device, and the waste heat drying device is also connected with the pyrolysis device through the smoke exhaust pipe (17) arranged on the pyrolysis device. 2. The domestic waste pyrolysis reduction treatment system according to claim 1, characterized in that, the waste heat drying device includes a dryer (2), and the end of the exhaust pipe (17) is connected to the dryer ( 2), a feeding belt conveyor (1) is installed at the feed inlet of the dryer (2), and a roller idler (21) and a roller driving device (20) are fixed on the dryer (2). , the discharge bin (30) is arranged at the discharge end of the dryer (2), and the lower end of the discharge bin (30) is provided with a discharge channel (10) connected to the pyrolysis device, and in the discharge bin ( 30) The upper end is also provided with an exhaust port. 3. The domestic waste pyrolysis reduction treatment system according to claim 2, characterized in that, the exhaust port of the discharge bin (30) is provided with a pipe, and the pipe is sequentially provided with a No. 1 induced draft fan (3), Cyclone dust collector (4) and No. 1 spray dust collector (5). 4. The domestic waste pyrolysis reduction treatment system according to claim 3, characterized in that, the pyrolysis device includes a screw feeder (11) connected to the discharge bin (30) through the discharge channel (10) And the twin-drum reactor (15) connected to the screw feeder (11), on which the drum drive (20), drum idler (21) and combustion chamber (16), the combustion chamber (16) is connected to the dryer (2) through the exhaust pipe (17), and the combustion chamber (16) is connected with an air intake pipe (19), the air intake pipe (19 ) is provided with a combustion head (18) at the connection position of the combustion chamber (16), and the combustion chamber (16) is connected to the dryer (2) through the smoke exhaust pipe (17). There is a sealing cover (14) at the material inlet, a screw discharger (22) at the material outlet, and a gas collector at the exhaust port of the double-barrel reactor (15). A cover (13) and a sensor (12), the gas collection cover (13) is provided with a gas collection pipe (23), and a gas processing and collecting device is also connected to the gas collection pipe. 5. The domestic waste pyrolysis reduction treatment system according to claim 4, characterized in that, the gas treatment and collection device includes No. 2 spray dust collector (24), condenser (25), No. The blower fan (26) and the gas collection tank (29), the gas collection tank (29) is also connected to the air intake pipeline (19) through a pipeline. 6. The domestic waste pyrolysis reduction treatment system according to claim 5, characterized in that, the No. 2 spray dust collector (24) is also provided with an explosion-proof pool (27). 7. The domestic waste pyrolysis reduction treatment system according to claim 6, characterized in that, the double-barreled reactor (15) also includes an inner reaction cylinder (6) and an outer reaction cylinder (8), and the inner reaction The inside of the tube (6) and the outer reaction tube (8) are respectively provided with an inner guide vane (7) and an outer guide vane (9), and the inner guide vane (7) and the outer guide vane (9) are both spiral status settings. 8. The domestic waste pyrolysis reduction treatment system according to claim 7, characterized in that, the inner guide vane (7) and the outer guide vane (9) are arranged in a spiral shape opposite to each other. 9. The domestic waste pyrolysis reduction treatment system according to claim 7, characterized in that, the inner guide vane (7) and the outer guide vane (9) are arranged in a spiral shape in the same direction as each other.