CN206709080U - A kind of automatic lime-ash fire grate device of pyrolytic gasification - Google Patents

Abstract

The utility model relates to an automatic ash grate device for pyrolysis and gasification. The device comprises an upper cylinder body, a lower cylinder body, a discharge hopper assembly, a discharge slide, a grate crushing tower body, a base and a rotating shaft; the upper cylinder body The top is provided with a feed port and an exhaust port, and the feeding plate of the unloading slide is provided with a rotating hole. The inner walls of the upper cylinder and the lower cylinder are lined with refractory concrete; the bottom of the upper cylinder and the top of the lower cylinder Through the fixed connection of the flange, a layer of toothed iron bricks is fixedly installed on the inner side of the refractory concrete of the lower cylinder, and the inner side of the toothed iron bricks is fixedly installed with a crushing tooth plate. The upper end of the discharge hopper assembly is fixedly connected to the bottom of the lower cylinder. The upper end of the slide is fixedly connected to the lower end of the discharge hopper assembly, the middle part of the rotating shaft is rotatably installed in the rotating hole, the upper end of the rotating shaft is fixedly connected with the bottom of the grate crushing tower body, and the lower end of the rotating shaft is rotatably installed on the base seat. The pyrolysis gasification automatic ash grate device of the utility model has the advantages of thorough garbage crushing and high incineration efficiency.

Description

A pyrolysis gasification automatic ash grate device

technical field

The utility model relates to the technical field of garbage incineration equipment, in particular to an automatic ash grate device for pyrolysis and gasification.

Background technique

Garbage disposal has always been a major environmental issue of concern all over the world. Traditional waste disposal methods mainly include landfill and incineration. Landfill will occupy a lot of valuable land resources and pollute the environment at the same time, so this simple treatment method is basically no longer used. Compared with landfill treatment, waste incineration is a better treatment method. Through incineration, not only garbage The volume is greatly reduced, and at the same time, the heat generated by incineration can be used to generate electricity and heat to achieve the purpose of energy reuse. Therefore, waste incineration technology has become a waste treatment technology commonly used at home and abroad.

The Chinese utility model patent document with the authorized announcement number CN204786431 discloses a garbage incinerator that pushes and crushes garbage by a screw, including a garbage disposal port, a garbage storage bin, an incinerator body, a combustion nozzle, a fire grate, a first heat-conducting oil pipe, Oil pump, oil storage tank, second heat transfer oil pipe, smoke exhaust port, soot collector, drive motor, motor mounting frame, coupling, push screw, first flange, bearing and second flange, push screw It is connected with the output shaft of the drive motor through a coupling, the push screw is installed on the bearing and fixedly connected with the end cover of the garbage storage bin, and the push screw is installed on one end of the shaft in the garbage storage bin. Blade-shaped cutter for cutting broken waste. The utility model pushes the garbage into the incinerator body by the screw plectrum on the push screw, and at the same time cuts the garbage by the blade-shaped cutting knife on the push screw, which can ensure the rapid and thorough incineration of the garbage in the incinerator body. This kind of garbage incinerator has the problem that the garbage is not crushed thoroughly, which in turn leads to the problem that the incineration efficiency of the garbage is low.

Utility model content

The purpose of the utility model is to provide an automatic ash grate device for pyrolysis and gasification to solve the problems of incomplete garbage crushing and low garbage incineration efficiency in existing garbage incinerators.

In order to achieve the above purpose, the utility model provides an automatic ash grate device for pyrolysis and gasification, the automatic ash grate device for pyrolysis and gasification includes an upper cylinder, a lower cylinder, a discharge hopper assembly, and a discharge slide , grate crushing tower body, base and rotating shaft; the top of the upper cylinder body is provided with a feed port and an exhaust port, and the material receiving plate of the unloading slide is provided with a rotation hole, and the upper cylinder body and the lower cylinder body are provided with a rotating hole. The inner wall of the cylinder is lined with refractory concrete; the bottom of the upper cylinder and the top of the lower cylinder are fixedly connected by flanges, and a layer of toothed iron bricks is fixedly installed on the inner side of the refractory concrete of the lower cylinder. A crushing tooth plate is fixedly installed on the inner side of the toothed iron brick, the upper end of the discharge hopper assembly is fixedly connected to the bottom of the lower cylinder, the side plate of the discharge hopper assembly is provided with an air inlet, and the discharge chute The upper end is fixedly connected to the lower end of the discharge hopper assembly, the middle part of the rotating shaft is rotatably installed in the rotating hole, the upper end of the rotating shaft is fixedly connected to the bottom of the grate crushing tower body, and the lower end of the rotating shaft can be Rotatingly installed on the base, the rotating shaft is fixed with gears on the cylindrical surface close to the base, and the upper surface of the grate crushing tower is provided with a number of leakage holes and toothed hammers.

Preferably, the skirt of the grate crushing tower body is provided with several protruding teeth.

Preferably, the crushing tooth plate is a jaw type crushing tooth plate.

Preferably, an inspection door is opened on the side plate of the lower cylinder.

Preferably, an electric dust discharge valve is installed at the lower end of the discharge chute.

Preferably, the leakage holes and toothed hammers are evenly distributed on the upper surface of the grate crushing tower body.

Preferably, an annular slit is formed between the lower edge of the crushing tooth plate bent inward and the skirt of the grate crushing tower body.

The utility model has the following advantages: the upper cylinder body and the lower cylinder body of the pyrolysis gasification automatic ash grate device of the utility model form a combustion chamber, and at the same time, the air input through the air inlet provides sufficient oxygen for garbage combustion. The rotating grate crushing tower cooperates with the crushing tooth plate to crush the garbage through multiple angles, so that the garbage can be fully incinerated, and the crushed ash is discharged through the discharge hopper assembly and the discharge chute. The pyrolysis gasification automatic ash grate device of the utility model has the advantages of thorough garbage crushing and high incineration efficiency.

Description of drawings

Figure 1 is a schematic cross-sectional structure diagram of the utility model pyrolysis gasification automatic ash grate device.

FIG. 2 is a schematic diagram of a partially enlarged structure of FIG. 1 .

detailed description

The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Example 1

The pyrolysis gasification automatic ash grate device includes an upper cylinder body 1, a lower cylinder body 2, a discharge hopper assembly 3, a feeding slide 4, a grate crushing tower body 5, a base 6 and a rotating shaft 7. The upper cylinder body 1 and the lower cylinder body 2 of the pyrolysis gasification automatic ash grate device of the utility model form a combustion chamber, and at the same time, the air input through the air inlet 33 provides sufficient oxygen for garbage combustion, and is broken by the rotating grate. The tower body 5 cooperates with the crushing tooth plate 22 to crush the garbage through multiple angles, so that the garbage is fully incinerated, and the crushed ash is discharged through the discharge hopper assembly 3 and the discharge chute 4. The pyrolysis gasification automatic ash grate device of the utility model has the advantages of thorough garbage crushing and high incineration efficiency.

As shown in Figures 1 and 2, the upper cylinder 1 is a tubular structure with a closed top and an opening at the bottom. The top of the upper cylinder 1 is provided with a feed port 11 and an exhaust port 12. The feed port 11 communicates with the feed pipe. Port 11 is used to deliver solid waste to the combustion chamber, and exhaust port 12 is connected with the secondary combustion device through pipelines. Perform secondary combustion. The lower cylinder body 2 has a tubular structure with two ends open. The upper port of the lower cylinder body 2 is provided with a flange 14, and the side plate of the lower cylinder body 2 is provided with an inspection door 23. By setting the inspection door 23, it is greatly convenient for heat protection. The inspection and maintenance of the degasification automatic ash grate device does not need to disassemble the entire device for maintenance. The upper cylinder body 1 and the lower cylinder body 2 are fixedly installed on the fixed frame, so as to ensure that the upper cylinder body 1 and the lower cylinder body 2 will not rotate when the grate crushing tower body 5 rotates. The lower port of the upper cylinder body 1 and the upper port of the lower cylinder body 2 are fixedly connected through the flange 14. By setting the flange 14, the height of the pyrolysis gasification automatic ash grate device is relatively high, the individual weight of the components, hoisting and maintenance are solved. The difficulty of construction not only reduces the labor intensity of workers, but also improves work efficiency. The upper cylinder body 1 and the lower cylinder body 2 form a closed combustion chamber, in which the solid waste is burned and the ash is crushed. The inner walls of the upper cylinder 1 and the lower cylinder 2 are lined with refractory concrete 13, and the inner side of the refractory concrete 13 of the lower cylinder 2 is fixedly installed with a layer of toothed iron bricks 21. The toothed iron bricks 21 are hollow iron bricks, so they have It has good high temperature resistance and can effectively protect the refractory concrete 13 and the thermal insulation material arranged between the refractory concrete 13 and the inner walls of the upper cylinder 1 and the lower cylinder 2 . The inner side of the toothed iron brick 21 is fixedly equipped with a crushing tooth plate 22. In this embodiment, the crushing tooth plate 22 is preferably a jaw-type crushing tooth plate. broken. The upper end of the discharge hopper assembly 3 is screwed or welded to the bottom of the lower cylinder 2, and the side plate of the discharge hopper assembly 3 is provided with an air inlet 33, which is used to deliver air to the combustion chamber to ensure that the solid waste is fully burned in the combustion chamber . The upper end of the blanking chute 4 is screwed or welded to the lower end of the discharge hopper assembly 3, the material receiving plate of the blanking chute 4 is provided with a rotating hole 41, and the lower end of the blanking chute 4 is equipped with an electric ash discharge valve 42, and the electric ash discharge Valve 42 is connected to the control device. Under the action of gravity, the crushed ash slides down to the electric ash discharge valve 42 in turn through the discharge hopper assembly 3 and the discharge slide 4 for accumulation. The electric ash discharge valve 42 is normally closed to prevent air from passing through the electric ash discharge. The valve 42 enters the combustion chamber to reduce the temperature in the combustion chamber. When the ash and slag accumulate to a certain amount, the control device controls the electric ash unloading valve 42 to open to realize the automatic discharge of the ash and slag. The middle part of the rotating shaft 7 is rotatably installed in the rotating hole 41, the upper end of the rotating shaft 7 is fixedly connected with the bottom of the grate crushing tower body 5, and the lower end of the rotating shaft 7 is rotatably installed on the base 6, and the rotating shaft 7 The fixed cover on the cylindrical surface close to the base 6 is provided with a gear 71, and the gear 71 meshes with the driving gear of the driving device. Large torque makes the device run more smoothly. The upper surface of the grate crushing tower body 5 is evenly provided with some leakage holes 51 and toothed hammers 52, and the toothed hammers 52 can hit the ash and slag when the grate crushing tower body 5 rotates at high speed, and it is initially crushed. Leak hole 51 is used for outputting uniform and sufficient strong wind to the large surface of burning solid waste, guarantees that solid waste is fully burned, and the strong wind of cooling can cool grate broken tower body 5 simultaneously.

Further, the skirt of the grate crushing tower body 5 is provided with several protruding teeth 53, while the lower edge of the crushing tooth plate 22 bends inwardly and forms an annular slit 54 between the skirt of the grate crushing tower body 5. The crushed ash enters between the lower edge of the crushing tooth plate 22 and the skirt of the grate crushing tower body 5, and the ash and slag are squeezed and crushed through the cooperation between the protruding teeth 53 of the skirt and the lower edge of the crushing tooth plate 22. The ash is further crushed and refined, and finally enters the discharge hopper assembly 3 and the discharge chute 4 through the slit 54 .

Working principle: when in use, the feeding pipe transports solid waste to the feed port 11, and the solid waste enters the combustion chamber after passing through the feed port 11. When the solid waste reaches the top of the grate crushing tower body 5, the high-speed rotating grate crushing tower body 5 The solid waste is stirred and turned, and the strong wind delivered by the air inlet 33 moves upward through the leak hole 51 and the slit 54 to provide sufficient oxygen for the combustion of the solid waste. The solid waste falls down through the leak hole 51 and enters the discharge hopper assembly 3 and the discharge chute 4 . At the same time, the toothed hammer 52 moving at high speed on the upper surface of the grate crushing tower body 5 hits the ash, and the ash after impact collides with the crushing tooth plate 22. After multiple collisions between the grate crushing tower body 5 and the crushing tooth plate 22 , the particle size of the ash and slag is reduced to complete the preliminary crushing, and the ash and slag after the preliminary crushing move downwards and enter the slit 54 between the lower edge of the crushing tooth plate 22 and the skirt of the grate crushing tower body 5, and pass through the convex edge of the skirt. The teeth 53 and the lower edge of the crushing tooth plate 22 cooperate with each other to squeeze and crush the ash, so that the ash is further crushed and refined, completes secondary crushing, and finally enters the discharge hopper assembly 3 and the discharge chute 4 through the slit 54 . The exhaust gas generated by burning solid waste is discharged from the exhaust port 12 and then sent to the secondary combustion device through the pipeline. In the secondary combustion device, the exhaust gas that is not fully burned is subjected to secondary combustion, thereby further improving the incineration efficiency of garbage. When the ash on the discharge hopper assembly 3 and the discharge chute 4 has accumulated to a certain amount, the control device controls the electric ash unloading valve 42 to open to realize automatic discharge of ash.

Although the utility model has been described in detail with general description and specific embodiments above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the utility model. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (7)

1. a kind of automatic lime-ash fire grate device of pyrolytic gasification, the automatic lime-ash fire grate device of pyrolytic gasification include upper shell, under Cylinder, dump skip component, blanking scraper-trough conveyer, comb broken tower body, pedestal and rotary shaft；Be provided with the top of the upper shell charging aperture and Exhaust outlet, rotation hole is provided with the splicing plate of the blanking scraper-trough conveyer, the inwall of the upper shell and lower shell is lined with fire resisting Concrete；Characterized in that, the bottom of the upper shell is fixedly connected with the top of lower shell by flange, the lower shell fire resisting concrete Inner side be installed with one layer of band tooth grey iron block, it is described with being installed with broken tooth plate, the dump skip on the inside of tooth grey iron block The upper end of component is fixedly connected on the bottom of the lower shell, and air inlet is provided with the side plate of the dump skip component, described The upper end of blanking scraper-trough conveyer is fixedly connected on the lower end of dump skip component, and rotation hole is installed in rotation in the middle part of the rotary shaft In, the upper end of the rotary shaft is fixedly connected with the bottom for combing broken tower body, and the lower end of the rotary shaft is rotationally pacified Turn on pedestal, rotary shaft fixed cover on the cylinder of pedestal is provided with gear, and the upper surface for combing broken tower body is set It is equipped with some small opening and tooth hammers.

2. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that the broken tower body of combing Shirt rim is provided with some double wedges.

3. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that the broken tooth plate is jaw Formula crushes tooth plate.

4. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that the side plate of the lower shell On offer maintenance door.

5. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that under the blanking scraper-trough conveyer End is provided with electric cinder valve.

6. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that small opening and the tooth hammer is equal The even upper surface for being distributed in the broken tower body of combing.

7. the automatic lime-ash fire grate device of pyrolytic gasification according to claim 1, it is characterised in that under the broken tooth plate An annular fine crack is formed between the shirt rim of the inside lateral bend in edge and broken tower body of combing.