TWM537589U - Biomass energy gasification plant - Google Patents

Description

Biomass gasification unit

The present invention relates to a field of biomass energy devices, in particular to a chemical stability of a crude gas which can be enhanced by a gasification reaction under a low-cost structural improvement, and an incremental combustible gas thereof. In the purification of the biomass gasification device that can be used for combustion.

In recent years, the exhaustion of natural energy has become a serious problem. All countries are committed to finding alternative energy sources. However, whether it is wind or solar energy, it is effective but not costly. Therefore, a gasification technology has been developed. Non-catalytic partial oxidation at high temperatures to convert carbonaceous biomass (such as wood, peanut hulls, rice, biomass waste, coal, etc.) into combustible gas (or syngas), The combustible gas produced by the gasification reaction mainly includes carbon monoxide, hydrogen, methane, etc., and can be used as a fuel for boilers, generator sets, etc., to supply required steam and electricity, and carbon capture effect during gasification. Alternative energy worth promoting.

The biomass gasification reaction occurs in the biomass gasification unit and is the main equipment for gasification technology. As shown in Fig. 1, the biomass gasification device 2 can be naturally inhaled or receive O ₂ (oxygen) supplied from the oxygen generator 1 to perform a combustion operation when the biomass is supplied to the biomass gasification device 2 In the middle, the biomass can form a crude gas and ash through the gasification reaction, and the crude gas can be purified by the purification device 3 to provide clean gas to the generator 4 to enable the generator 4 to operate; or As shown in FIG. 2, the gas formed by the processing of the crude gas via the purification device 3 can be sent to the gas storage device 6 via the gas delivery device 5, and then distributed to the household users by the gas storage device 6, so that Water heaters, gas stoves and the like among home users can be operated by the gas. However, most of the conventional gasification devices have the following disadvantages: 1. The ash generated by the combustion of biomass is deposited on the bottom, and the ash must be manually removed from the bottom of the furnace, which is quite inconvenient to use. 2. The biomass naturally produces tar when the gasification reaction is carried out, and the conventional gasification device cannot effectively remove the tar, so that the tar still remains in the crude gas generated after the gasification reaction, thereby causing the The chemical stability of the crude gas is not good, so that when the crude gas is subsequently used as a fuel for a boiler or a generator set, it will not completely burn.

In order to solve the above problems, a biomass gasification device of the prior art has two gasification furnace bodies, which are a main gasification furnace body 101 and a secondary gasification furnace body 102, as shown in FIG. The main gasification furnace body 101 is provided with a hopper 1011 and an automatic unloader 1012, and the automatic hopper 1012 can achieve the effect of automatic ash discharge; in addition, the main gasification furnace body 101 is first through The gas outlet port 1013 is connected to the secondary gasification furnace body 102, and the tar in the crude gas can be removed by the secondary gasification combustion of the secondary gasification furnace body 102. However, although the conventional biomass gasification device can remove the tar from the crude gas, the crude gas can be completely burned in the subsequent use, but the gasification operation is performed by using the two furnace bodies, and dust removal is still required. The cost of purifying the equipment will be greatly increased.

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a chemical system which can improve the chemical stability of the gas produced by the gasification reaction and improve the fuel efficiency under the improvement of the low-cost structure, so that the crude gas is purified. Subsequent biomass gasification unit for combustion.

According to the purpose of the present invention, a biomass gasification device is proposed, which comprises: a furnace body having a biomass input port at the top thereof, a ash output port at the bottom of the furnace body, a biomass input port and ash residue The output port is connected to a chamber inside the furnace body; a ash slag barrel is connected to the ash output port of the furnace body to receive a ash generated by combustion and decomposition of a biomass through the chamber; a jet pipe is connected The furnace body, one of the inlet end of the gas pipe is relatively located outside the furnace body to provide water gas (H ₂ O) input, one nozzle of the gas injection pipe is located in the chamber, and the nozzle body outputs water gas to burn with the biomass. The gas formed after the decomposition is combined; and at least one gas outlet pipe is connected to the furnace body and communicates with the chamber to output the gas to the water gas and to perform a reduction reaction to form a crude gas to a purification device.

Through the above structural design, in addition to automatically discharging the oxidized ash from the biomass, the artificial biomass gasification device can also use the water vapor sprayed from the lance to combine the gas formed by the combustion and decomposition of the biomass. When the gas is formed into a crude gas after the reduction reaction, the chemical stability can be improved, and the chemical reaction formula is 2C+2H ₂ O→2CO+CH ₄ , so that the crude gas can be completely burned in the subsequent use, and the gas is upgraded. The calorific value, compared to the prior art, the creation of a simple structure can achieve the purpose of efficient gasification, and can also reduce unnecessary cost.

According to the above technical features, the biogasification device of the present invention further comprises a conveying pipe, one end of which is connected to the ash output port of the furnace body, and the other end of the conveying pipe is connected to the ash slag barrel.

According to the above technical feature, the inside of the conveying pipe is provided with a transmission portion, and the transmission portion is rotated to convey the ash from the ash slag outlet to the ash slag bucket; thereby, the ash can be automatically discharged to the ash The efficiency of the slag bucket.

According to the above technical feature, the transmission portion is preferably a screw.

According to the above technical feature, one end of the conveying pipe connecting the ash slag barrel is higher than one end of the conveying pipe connecting the furnace body.

According to the above technical feature, the chamber forms a drying zone, a pyrolysis zone, an oxidation zone and a reduction zone respectively from top to bottom via a temperature zone control system, and the nozzle of the jet pipe is located below the reduction zone, and the nozzle The control unit sprays water vapor to the location of the reduction zone to combine with the gas.

According to the above technical features, the furnace body is distributed as a whole, the temperature of the drying zone may be 200 to 300 degrees C, the temperature of the pyrolysis zone may be 300 to 800 degrees C, and the temperature of the oxidation zone may be 800 to 1200 degrees C and reduction The temperature of the zone can be from 700 to 900 degrees C.

According to the above technical feature, the outer wall of the flame-resistant nozzle design is provided with a plurality of through holes for providing water vapor output.

According to the above technical feature, the through hole preferably has a tapered shape or a rectangular shape; or the inner wall of the through hole preferably slopes upward from one end of the inner surface of the shower head toward the outer end, and the through hole is inclined inside Preferably, the wall is 45 to 60 degrees from the longitudinal axis of the nozzle; thereby enhancing the smoothness of the water vapor from the nozzle to ensure that moisture can be sprayed into the reduction zone to combine with the gas.

According to the above technical features, each of the through holes of the nozzle can be further provided with a check valve, and the check valve can prevent the ash from entering the nozzle from the through hole.

In order to understand the technical characteristics, content and advantages of the creation and the effects that can be achieved by the examiner, the author will use the drawings in detail and explain the following in the form of the examples, and the drawings used therein The subject matter is only for the purpose of illustration and supplementary instructions. It is not necessarily the true proportion and precise configuration after the implementation of the original creation. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited in the actual implementation scope. First described.

Please refer to FIG. 4 to FIG. 6 , which are respectively a first schematic diagram, a second schematic diagram and a third schematic diagram of the biomass gasification device of the present invention. As shown in Fig. 4, the biomass gasification apparatus 10 of the present invention comprises a furnace body 11, a ash slag barrel 12, a gas injection tube 13, an air outlet tube 14, and a delivery tube 15, wherein the furnace body 11 contains a biomass input. The port 111 is connected to the blast tube 13 through the delivery pipe 15, and the furnace body 11 is connected to the purification device 20 through the outlet pipe 14. Preferably, the number of the outlet pipes 14 may be plural.

Continuing to refer to FIG. 5, the top of the furnace body 11 is provided with the biomass input port 111, and the bottom of the furnace body 11 is provided with a ash output port 112, the biomass input port 111 and the ash output port. The 112 is connected to a chamber 113 inside the furnace body 11; wherein the chamber 113 forms a drying zone 1131, a pyrolysis zone 1132, an oxidation zone 1133 and a reduction zone respectively from top to bottom via a temperature zone control system. 1134, the temperature of the drying zone 1131 may be 200 to 300 degrees C, the temperature of the pyrolysis zone 1132 may be 300 to 800 degrees C, the temperature of the oxidation zone 1133 may be 800 to 1200 degrees C, and the temperature of the reduction zone 1134 It can be 700 to 900 degrees C. The ash slag barrel 12 is connected to the ash output port 112 of the furnace body 11, which can be used to receive and store the ash generated by the combustion and decomposition of the biomass through the chamber 113. In detail, the ash slag barrel 12 is transmitted through the conveying pipe. 15 is connected to the furnace body 11, wherein one end of the conveying pipe 15 is connected to the ash output port 112 of the furnace body 11, and the other end of the conveying pipe 15 is connected to the ash tank 12, and in the arrangement, the conveying pipe 15 One end of the connecting ash slag barrel 12 is higher than the one end of the conveying pipe 15 connecting the furnace body 11, and a transmission portion 151 is further disposed inside the conveying pipe 15, and the transmission portion 151 is preferably a screw, but not Limited. The vent tube 13 is inserted at the bottom of the furnace body 11, wherein the inlet end 131 of the lance 13 is opposite to the outside of the furnace body 11, and one of the nozzles 132 of the lance 13 is located in the chamber 113 and is located in the reduction zone. Below 1134. One end of the air outlet pipe 14 is connected to the furnace body 11 and communicates with the chamber 113, and the other end of the air outlet pipe 14 is connected to the purification device 20.

Referring to Figure 6, the biomass gasification unit 10 can perform a gasification operation to allow the biomass (e.g., wood, paper, coal, etc.) to be gasified. In use, the biomass can be introduced into the chamber 113 via the biomass input port 111 at the top of the furnace body 11, so that the biomass can pass through the drying zone 1131, the pyrolysis zone 1132, the oxidation zone 1133, and the reduction zone 1134 for gas. Combustion decomposition, when the biomass is gasified, ash will be generated. At this time, the ash can be discharged from the ash output port 112 at the bottom of the furnace body 11, and the ash is transferred to the ash by the rotation of the transmission portion 151. The slag bucket 12 is operated thereby, so that the biomass gasification device 10 can achieve the effect of automatically discharging the ash, and the efficiency of automatically discharging the ash to the ash bucket 12 can be improved through the setting of the transmission portion 151. It is known that the ash of the bottom of the furnace body 11 must be manually removed, and the present invention is quite convenient and rapid in cleaning the ash. Furthermore, the main feature of the present invention is that the biomass gasification device 10 of the present invention is provided with a gas nozzle 13 which supplies water to the gas inlet end 131 of the gas injection tube 13 when the biomass gasification device 10 is operated. Gas (H ₂ O) is input, and the showerhead 132 of the lance 13 can eject the water vapor into the reduction zone 1134 of the chamber 113 such that the biomass is combusted to generate gas and is located in the reduction zone 1134. The water and gas are combined, and because the water gas has hydrogen element, it can crack the tar remaining in the gas generated by the gasification reaction and increase the methane, and the carbon monoxide is a combustible gas, and the chemical reaction formula is 2C+2H. ₂ O→2CO+CH ₄ , or CO+H ₂ O→CO ₂ +H ₂ As such, when the gas forms a crude gas after the reduction reaction, the chemical stability of the crude gas can be improved, thereby making the crude When the gas is output to the purification device 20 for purification through the outlet pipe 20 for use in subsequent generators, boilers and the like, the combustion can be completed. Compared with the prior art, the creation can effectively achieve the same effect under the low-cost structural improvement. .

Please refer to FIG. 7 again, which is a schematic diagram of the first embodiment of the jet tube of the biomass gasification device of the present invention. As shown in FIG. 7, the outer wall of the nozzle 132 of the lance 13 is provided with a plurality of through holes 1321 for providing a water vapor output, wherein the through holes 1321 are preferably tapered.

Please refer to FIG. 8 again, which is a schematic diagram of a second embodiment of the ejector tube of the biomass gasification device of the present invention. As described above, the outer wall of the nozzle 132 of the nozzle 13 of the present invention is provided with a plurality of through holes 1321. In this embodiment, the inner walls of the through holes 1321 are preferably open from one of the interiors of the nozzle 132. One of the outer ends is inclined upward, and the inner wall of each of the through holes 1321 is preferably 45 to 60 degrees with respect to the longitudinal axis of the showerhead 132, but is not limited thereto.

In the above, the present invention utilizes a through hole 1321 of a tapered or beveled state to enhance the smoothness of the water vapor ejected from the nozzle 132, thereby effectively ensuring that the water vapor can be sprayed to the reduction zone 1334 and the gasification reaction. The gases produced are combined. In addition, please refer to FIG. 9 and FIG. 10 together, which are schematic diagrams of a third embodiment and a fourth embodiment of the jet tube of the biomass gasification apparatus of the present invention, wherein the jet tube 13 In addition to the taper and the bevel angle, the through hole 1321 of the nozzle 132 can also be designed in a rectangular shape, as shown in FIG. Further, each of the through holes 1321 of the nozzle 132 may further be provided with a check valve 133. As shown in FIG. 9 and FIG. 10, the check valve 133 can prevent the ash from being stuck from the through hole 1321. The water is trapped in the nozzle 132 and cannot be ejected.

Referring to FIG. 11 together, the biomass gasification device 10 of the present invention can be applied to a biomass gasification station, and when the biomass gasification device 10 performs a gasification operation, the biomass is subjected to a gasification reaction to generate a crude gas. After that, the crude gas can be purified by the purification device to become gas, and then the gas is sent to the gas storage device, and then the gas can be used in each home user terminal to make the home user terminal Water heaters, gas stoves and the like can use the gas to perform their corresponding functions.

In summary, the biomass gasification device of the present invention has the following advantages: 1. The structure variation is small, and the tar remaining in the crude gas can be removed without costly, thereby improving the coarseness. The chemical stability of the gas and the improvement of fuel efficiency enable the crude gas to be burned after being purified. 2. The ash generated by the biomass gasification reaction can be automatically discharged, and the discharge speed is rapid, and it is not necessary to be manually removed, and the use is quite convenient.

Looking at the above, it can be seen that under the previous technology, this creation has indeed achieved the desired effect, and it is not easy for people who are familiar with the art to think about it. Moreover, this creation has not been disclosed before the application, and it has Progressive and practical, it has been in line with the patent application requirements, and the patent application is filed according to law. You are requested to approve the patent application for this piece to encourage creation.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

1‧‧‧Oxygen generator
2, 10‧‧‧ biomass gasification unit
3, 20‧‧‧ purification device
4‧‧‧Generator
5‧‧‧ gas delivery device
6‧‧‧ gas storage device
101‧‧‧Main gasifier body
1011‧‧‧Into the hopper
1012‧‧‧Automatic cutting machine
1013‧‧‧First air outlet
102‧‧‧Second gasifier body
11‧‧‧ furnace body
111‧‧‧Biomass input
112‧‧‧ ash output
113‧‧‧ chamber
1131‧‧‧Drying area
1132‧‧‧ Pyrolysis zone
1133‧‧‧Oxidation zone
1134‧‧‧Reduction area
12‧‧‧ ash bucket
13‧‧‧jet tube
131‧‧‧Inlet
132‧‧‧ sprinkler
1321‧‧‧through hole
133‧‧‧ check valve
14‧‧‧Exhaust pipe
15‧‧‧ delivery tube
151‧‧‧Transmission Department

Figure 1 is a schematic illustration of one embodiment of a general gasification system application. Figure 2 is a schematic illustration of another embodiment of a general gasification system application. Figure 3 is a schematic illustration of a conventional biomass gasification unit. Figure 4 is the first schematic diagram of the biogasification device of the creation. Figure 5 is the second schematic diagram of the biomass gasification device of the present invention. Figure 6 is the third schematic diagram of the biogasification device of the creation. Figure 7 is a schematic view of a first embodiment of the lance of the present invention. Figure 8 is a schematic view showing a second embodiment of the lance of the biomass gasification apparatus of the present invention. Figure 9 is a schematic view showing a third embodiment of the lance of the biomass gasification apparatus of the present invention. Figure 10 is a schematic view showing a fourth embodiment of the lance of the biomass gasification apparatus of the present invention. Figure 11 is a schematic diagram of the biogasification unit of the present invention applied to a biomass gasification station.

10‧‧‧Biomass gasification unit

11‧‧‧ furnace body

111‧‧‧Biomass input

12‧‧‧ ash bucket

13‧‧‧jet tube

14‧‧‧Exhaust pipe

15‧‧‧ delivery tube

20‧‧‧purification device

Claims (12)

A biomass gasification device comprising: a furnace body (11) having a biomass input port (111) at the top thereof, and a ash output port (112) at the bottom of the furnace body (11), The biomass input port (111) and the ash output port (112) are connected to a chamber (113) inside the furnace body (11); a ash slag barrel (12) is connected to the furnace body (11) The ash output port (112) receives a ash generated by combustion of a biomass through the chamber (113); a jet tube (13) is coupled to the furnace body (11), the lance tube ( 13) One of the inlet ends (131) is located outside the furnace body (11) to provide a water vapor (H ₂ O) input, and one of the nozzles (132) of the jet tube (13) is located in the chamber ( 113), wherein the nozzle (132) outputs the moisture to be combined with a gas formed by combustion decomposition of the biomass; and at least one gas outlet (14) is connected to the furnace body (11) and connected The chamber (113) outputs a crude gas to the purification device (20) after the gas is combined with the moisture and subjected to a reduction reaction. The biomass gasification device of claim 1, further comprising a delivery tube (15) having an open end connected to the ash output port (112) of the furnace body (11), the delivery tube (15) The other end opening is connected to the ash tank (12). The biomass gasification device according to claim 2, wherein the inside of the conveying pipe (15) is provided with a transmission portion (151), and the transmission portion (151) is rotated to discharge ash from the ash discharge port. (112) delivered to the ash tank (12). The biomass gasification device of claim 3, wherein the transmission portion (151) is a screw. The biomass gasification device of claim 3, wherein one end of the conveying pipe (15) that engages the ash slag (12) is higher than the end of the conveying pipe (15) that engages the furnace body (11). The biomass gasification device of claim 1, wherein the chamber (113) forms a drying zone (1131), a pyrolysis zone (1132), and an oxidation zone from top to bottom via a temperature zone control system. 1133) and a reduction zone (1134), the nozzle (132) of the lance (13) is located below the reduction zone (1134), and the nozzle (132) is sprayed to the reduction by a control system The location of zone (1134) is combined with the gas. The biomass gasification apparatus of claim 6, wherein the drying zone (1131) has a temperature of 200 to 300 degrees C, and the pyrolysis zone (1132) has a temperature of 300 to 800 degrees C, and the oxidation zone The temperature of (1133) is 800 to 1200 ° C, and the temperature of the reduction zone (1134) is 700 to 900 ° C. The biomass gasification device of claim 1, wherein the outer wall of the showerhead (132) is provided with a plurality of through holes (1321) for providing the moisture output. The biomass gasification device of claim 8, wherein the through hole (1321) is tapered or rectangular. The biomass gasification device of claim 8, wherein the inner wall of the through hole (1321) is inclined upward from one end of the inner surface of the shower head (132) toward the outer end. The biomass gasification device of claim 10, wherein the through hole (1321) has a sloped inner wall that is between 45 and 60 degrees from the longitudinal axis of the showerhead (132). The biomass gasification apparatus according to any one of claims 8 to 11, wherein each of the through holes (1321) of the nozzle (132) is provided with a check valve (133).