Pyrolysis gasification device

Abstract

The utility model discloses a pyrolysis gasification device which comprises a pyrolysis gasification furnace, and the pyrolysis gasification furnace comprises a furnace body, a first gas inlet, a feed port, a first gas outlet and a slag outlet; the first air inlet is formed in the bottom of the furnace body; the feeding hole is formed in the upper end of the furnace body; the first air outlet is formed in the upper end of the furnace body; the slag outlet is formed in the bottom of the furnace body; the gas supply device is connected with a gas inlet of the pyrolysis gasification furnace; the catalytic modification device is connected with a gas outlet of the pyrolysis gasification furnace; and the gas purification device is connected with the catalytic modification device. The device disclosed by the utility model has the effects that usable gas can be obtained through the pyrolytic reaction of the pyrolytic gasification furnace, the catalytic modification of the catalytic modification device and the purification of the gas purification device, so that the resource recycling rate and the economic benefit are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage treatment, in particular to a pyrolysis gasification device. Background Art

[0002] At present, domestic waste is mainly treated by composting, landfilling and incineration. Among them, the incineration method is prone to produce a variety of harmful gases, such as dioxins. In order to overcome this problem, garbage pyrolysis and gasification technology is currently used. This technology is a process in which garbage is heated and decomposed under anaerobic or anoxic conditions to produce combustible gases (such as hydrogen, carbon monoxide, methane and other hydrocarbons), organic liquids (such as organic acids, tar, etc.) and carbon black. It has the advantages of harmless garbage, reduction, resource utilization, low secondary pollution, and low dioxin emission concentration. It is currently becoming the most promising garbage treatment technology at home and abroad. However, most of the combustible gases produced are burned in the secondary combustion chamber. If they can be recycled and reused through gasification, they can generate considerable economic benefits. Utility Model Content

[0003] The purpose of the utility model is to provide a pyrolysis gasification device to solve the above problems. To achieve the above purpose, the technical solution adopted by the utility model is: a pyrolysis gasification device, including a pyrolysis gasification furnace, the pyrolysis gasification furnace including a furnace body, a first air inlet, a feed inlet, a first air outlet and a slag outlet; the first air inlet is arranged at the bottom of the furnace body; the feed inlet is arranged at the upper end of the furnace body; the first air outlet is arranged at the upper end of the furnace body; the slag outlet is arranged at the bottom of the furnace body;

[0004] A gas supply device, the gas supply device is connected to the air inlet of the pyrolysis gasification furnace;

[0005] A catalytic reforming device, the catalytic reforming device is connected to the gas outlet of the pyrolysis gasification furnace;

[0006] A gas purification device is connected to the catalytic reforming device.

[0007] The above technical solution is further explained below:

[0008] Preferably, a spreading plate is provided in the furnace body, the upper end of the spreading plate is connected to a rotating shaft, the rotating shaft extends out from the top of the furnace body and is connected to a first driving motor; the spreading plate is in the shape of an inverted funnel.

[0009] Preferably, a plurality of diverter plates are provided on the outer surface of the spreading plate; and a flow guide groove penetrating the spreading plate is provided between every two of the diverter plates.

[0010] Preferably, it further comprises a feeding device, wherein the feeding device comprises a second driving motor, a spiral auger and a discharge port;

[0011] One end of the spiral auger is connected to the second driving motor, and the other end of the spiral auger is connected to the feed port of the pyrolysis gasification furnace; the discharge port is arranged at the upper end of the spiral auger.

[0012] Preferably, the gas supply device includes a nitrogen cylinder, an oxygen cylinder, a water vapor generator and a gas mixer;

[0013] The nitrogen cylinder, oxygen cylinder and water vapor generator are respectively connected to the gas mixer, and the gas mixer is connected to the air inlet of the pyrolysis gasification furnace.

[0014] Preferably, the catalytic reforming device comprises a reaction furnace, a second air inlet, a second air outlet and a placement rack for placing the catalyst.

[0015] Preferably, the placement rack is a multi-layer structure.

[0016] Preferably, it further comprises a temperature control device, wherein the temperature control device comprises a first thermocouple, a second thermocouple and a temperature controller;

[0017] The first thermocouple is arranged in the furnace body of the pyrolysis gasification furnace, and the second thermocouple is arranged in the reaction furnace of the catalytic reforming device; the first thermocouple and the second thermocouple are respectively connected to the temperature controller.

[0018] Preferably, the gas purification device comprises a chiller, a first gas washing bottle and a second gas washing bottle arranged in the chiller, the first gas washing bottle is connected to the second gas outlet of the catalytic reforming device, and the second gas washing bottle is connected to the first gas washing bottle.

[0019] Preferably, it also includes an air compressor and an air storage tank; the air compressor is connected to the second air washing bottle, and the air storage tank is connected to the air compressor.

[0020] Beneficial effects of the utility model

[0021] 1. The utility model can obtain usable gas through the pyrolysis reaction of the pyrolysis gasifier, the catalytic reforming of the catalytic reforming device, and the purification of the gas purification device, thereby improving the resource recovery rate and economic benefits.

[0022] 2. In order to prevent the garbage from piling up into a cone in the furnace body and causing insufficient pyrolysis, the utility model can throw out the crushed garbage through the rotation of the throwing plate and the action of the multiple diverter plates, and some of the crushed garbage will fall down from the backflow chute to ensure that the garbage entering the furnace body can be spread out more evenly, which is convenient for more sufficient pyrolysis.

[0023] 3. The utility model makes the material discharge more uniform and the discharge speed can be controlled through the material discharge method of the spiral auger. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the pyrolysis gasification furnace in the embodiment of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the air supply device in the embodiment of the utility model.

[0028] Figure 4 It is a schematic diagram of the structure of the catalytic reforming device in the embodiment of the utility model.

[0029] Figure 5 It is a schematic diagram of the structure of the gas purification device in the embodiment of the utility model.

[0030] Figure 6 It is a schematic diagram of the structure of the spreading plate in the embodiment of the utility model.

[0031] Figure 7 It is a schematic diagram of the structure of the feeding device in the embodiment of the utility model.

[0032] Figure 8 It is a structural schematic diagram of the temperature control device in the embodiment of the utility model.

[0033] Fig. 9 It is a schematic diagram of the internal structure of the catalytic reforming device in the embodiment of the utility model.

[0034] Reference Numbers

[0035] 100-pyrolysis gasification furnace;

[0036] 101-furnace body; 102-first air inlet; 103-feeding port; 104-first air outlet; 105-slag outlet; 106-sprinkling plate; 107-rotating shaft; 108-first driving motor; 1061-diverter plate; 1062-flow guide groove;

[0037] 200-gas supply device;

[0038] 201-nitrogen cylinder; 202-oxygen cylinder; 203-steam generator; 204-gas mixer;

[0039] 300-Catalytic reforming device;

[0040] 301-reaction furnace; 302-second air inlet; 303-second air outlet; 304-placing rack;

[0041] 400-gas purification device;

[0042] 401- water chiller; 402- first gas washing bottle; 403- second gas washing bottle;

[0043] 500-feeding device;

[0044] 501- second driving motor; 502- spiral auger; 503- discharge port;

[0045] 600-temperature control device;

[0046] 601-first thermocouple; 602-second thermocouple; 603-temperature controller;

[0047] 700-air compressor;

[0048] 701-Gas storage tank. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "linked to" another element, it can be directly linked to the other element or indirectly linked to the other element.

[0051] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In one embodiment, if Figure 1-Figure 9 As shown, the utility model provides a pyrolysis gasification device, including a pyrolysis gasification furnace 100, the pyrolysis gasification furnace 100 includes a furnace body 101, a first air inlet 102, a feed inlet 103, a first air outlet 104 and a slag outlet 105; the first air inlet 102 is arranged at the bottom of the furnace body 101; the feed inlet 103 is arranged at the upper end of the furnace body 101; the first air outlet 104 is arranged at the upper end of the furnace body 101; the slag outlet 105 is arranged at the bottom of the furnace body 101;

[0054] A gas supply device 200, wherein the gas supply device 200 is connected to the gas inlet of the pyrolysis gasification furnace 100;

[0055] A catalytic reforming device 300, wherein the catalytic reforming device 300 is connected to the gas outlet of the pyrolysis gasification furnace 100;

[0056] The gas purification device 400 is connected to the catalytic reforming device 300 .

[0057] in:

[0058] The gas supply device 200 includes a nitrogen gas cylinder 201, an oxygen gas cylinder 202, a water vapor generator 203 and a gas mixer 204;

[0059] The nitrogen cylinder 201 , the oxygen cylinder 202 , and the water vapor generator 203 are respectively connected to the gas mixer 204 , and the gas mixer 204 is connected to the air inlet of the pyrolysis gasification furnace 100 .

[0060] The catalytic reforming device 300 includes a reaction furnace 301 , a second air inlet 302 , a second air outlet 303 , and a placement rack 304 for placing catalysts.

[0061] The gas purification device 400 includes a chiller 401 , a first gas washing bottle 402 and a second gas washing bottle 403 disposed in the chiller 401 . The first gas washing bottle 402 is connected to the second gas outlet 303 of the catalytic reforming device 300 , and the second gas washing bottle 403 is connected to the first gas washing bottle 402 .

[0062] It also includes an air compressor 700 and an air storage tank 701; the air compressor 700 is connected to the second washing bottle 403, and the air storage tank 701 is connected to the air compressor 700.

[0063] The working principle of the utility model is that after the garbage is crushed, it is poured into the feed port 103. At this time, the gas supply device 200 uses nitrogen as a carrier gas, and then mixes it with oxygen and water vapor through the gas mixer 204 and passes it into the furnace body 101 through the first air inlet 102. After the crushed garbage undergoes a pyrolysis reaction in the furnace body 101, its waste residue is discharged from the slag outlet 105, and the tar and crude gas generated by it pass through the first air outlet 104 and the second air inlet 302 into the reactor 301 of the catalytic reforming device 300. Under the action of the catalyst, the tar and macromolecular organic components are converted into small molecular components, such as H 2 ,CO,CO 2 , CH 4 . The synthetic gas flow after catalytic reforming enters the first gas washing bottle 402 in the gas purification device 400 through the second gas outlet 303, and then passes through the second gas washing bottle 403. It should be noted that the first gas washing bottle 402 is filled with deionized water, and the second gas washing bottle 403 is filled with isopropanol. And there is at least one second gas washing bottle 403. When there are multiple second gas washing bottles 403, multiple second gas washing bottles 403 are connected in series. After removing the residual tar components therein through the first gas washing bottle 402 and the second gas washing bottle 403. Then it is compressed by the air compressor 700, and then the compressed gas is stored in the gas storage tank 701 for subsequent use. The utility model can obtain usable gas through the pyrolysis reaction of the pyrolysis gasification furnace 100, followed by catalytic reforming of the catalytic reforming device 300, and then through the purification effect of the gas purification device 400, thereby improving the resource recovery rate and economic benefits.

[0064] In another embodiment, if Figure 6 As shown, the utility model provides a pyrolysis gasification device, wherein a spreading plate 106 is provided in the furnace body 101, and a rotating shaft 107 is connected to the upper end of the spreading plate 106. The rotating shaft 107 extends out from the top of the furnace body 101 and is connected to a first driving motor 108; the spreading plate 106 is in the shape of a reverse funnel.

[0065] Furthermore, a plurality of diverter plates 1061 are provided on the outer surface of the spreading plate 106 ; a flow guide groove 1062 penetrating the spreading plate 106 is provided between every two of the diverter plates 1061 .

[0066] It is understandable that when the crushed garbage is poured into the furnace body 101, in order to prevent the garbage from being piled up into a cone in the furnace body 101, which causes insufficient pyrolysis, the crushed garbage can be thrown out through the rotation of the spreading plate 106 and the action of the plurality of diverter plates 1061, and part of the crushed garbage will also fall down from the backflow chute, so as to ensure that the garbage entering the furnace body 101 can be spread out more evenly, which is convenient for more sufficient pyrolysis.

[0067] In yet another embodiment, Figure 7 As shown, the pyrolysis gasification device provided by the utility model further includes a feeding device 500, and the feeding device 500 includes a second driving motor 501, a spiral auger 502 and a discharge port 503;

[0068] One end of the spiral auger 502 is connected to the second driving motor 501 , and the other end of the spiral auger 502 is connected to the feed port 103 of the pyrolysis gasification furnace 100 ; the discharge port 503 is arranged at the upper end of the spiral auger 502 .

[0069] It can be understood that, through the material discharging method of the spiral auger 502, the material discharging is made more uniform and the discharging speed can be controlled.

[0070] In yet another embodiment, Fig. 9 As shown, the utility model provides a pyrolysis gasification device, wherein the placement rack 304 is a multi-layer structure.

[0071] It is understandable that the placement rack 304 with a multi-layer structure can allow the incoming crude gas to have more contact with the catalyst, thereby improving the effect of catalytic reforming.

[0072] In the last embodiment, if Figure 8 As shown, the pyrolysis gasification device provided by the utility model further includes a temperature control device 600, and the temperature control device 600 includes a first thermocouple 601, a second thermocouple 602 and a temperature controller 603;

[0073] The first thermocouple 601 is disposed in the furnace body 101 of the pyrolysis gasification furnace 100 , and the second thermocouple 602 is disposed in the reaction furnace 301 of the catalytic reforming device 300 ; the first thermocouple 601 and the second thermocouple 602 are connected to the temperature controller 603 , respectively.

[0074] It can be understood that the temperature inside the furnace body 101 is measured by the first thermocouple 601, and the temperature inside the reaction furnace 301 is tested by the second thermocouple 602; the heating program can be set according to the temperature controller 603, so that the temperature inside the furnace body 101 and the reaction furnace 301 can be kept constant.

[0075] It should be added that the catalyst in the catalytic reforming device 300 is a Ni-based catalyst.

[0076] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0077] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only a preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A pyrolysis gasification device, characterized in that: include, A pyrolysis gasification furnace, the pyrolysis gasification furnace comprising a furnace body, a first air inlet, a feed inlet, a first air outlet and a slag outlet; the first air inlet is arranged at the bottom of the furnace body; the feed inlet is arranged at the upper end of the furnace body; the first air outlet is arranged at the upper end of the furnace body; the slag outlet is arranged at the bottom of the furnace body; A gas supply device, the gas supply device is connected to the air inlet of the pyrolysis gasification furnace; A catalytic reforming device, the catalytic reforming device is connected to the gas outlet of the pyrolysis gasification furnace; A gas purification device is connected to the catalytic reforming device.

2. The pyrolysis gasification device according to claim 1, characterized in that: A spreading plate is arranged in the furnace body, the upper end of the spreading plate is connected to a rotating shaft, the rotating shaft extends out from the top of the furnace body and is connected to a first driving motor; the spreading plate is in the shape of a reverse funnel.

3. The pyrolysis gasification device according to claim 2, characterized in that: The outer surface of the spreading plate is provided with a plurality of diverter plates; a flow guide groove penetrating the spreading plate is provided between every two of the diverter plates.

4. The pyrolysis gasification device according to claim 3, characterized in that: It also includes a feeding device, which includes a second driving motor, a spiral auger and a discharge port; One end of the spiral auger is connected to the second driving motor, and the other end of the spiral auger is connected to the feed port of the pyrolysis gasification furnace; the discharge port is arranged at the upper end of the spiral auger.

5. The pyrolysis gasification device according to claim 4, characterized in that: The gas supply device includes a nitrogen gas cylinder, an oxygen gas cylinder, a water vapor generator and a gas mixer; The nitrogen cylinder, oxygen cylinder and water vapor generator are respectively connected to the gas mixer, and the gas mixer is connected to the air inlet of the pyrolysis gasification furnace.

6. The pyrolysis gasification device according to claim 5, characterized in that: The catalytic reforming device comprises a reaction furnace, a second air inlet, a second air outlet and a placement rack for placing catalysts.

7. The pyrolysis gasification device according to claim 6, characterized in that: The placement rack is a multi-layer structure.

8. The pyrolysis gasification device according to claim 7, characterized in that: Also includes a temperature control device, the temperature control device includes a first thermocouple, a second thermocouple and a temperature controller; The first thermocouple is arranged in the furnace body of the pyrolysis gasification furnace, and the second thermocouple is arranged in the reaction furnace of the catalytic reforming device; the first thermocouple and the second thermocouple are respectively connected to the temperature controller.

9. The pyrolysis gasification device according to claim 8, characterized in that: The gas purification device includes a chiller, a first gas washing bottle and a second gas washing bottle arranged in the chiller, the first gas washing bottle is connected to the second gas outlet of the catalytic reforming device, and the second gas washing bottle is connected to the first gas washing bottle.

10. The pyrolysis gasification device according to claim 9, characterized in that: It also includes an air compressor and an air storage tank; the air compressor is connected to the second air washing bottle, and the air storage tank is connected to the air compressor.

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