1. Materials for making gasifiers: Gasifiers are good stoves that can be used by every household. The fuel is mainly all dry and combustible plant materials. The main ones include: wood bran, planing, peanut shells, rice husks, and bamboo leaves. , leaves, straw, firewood, shredded cloth, shredded paper, etc. The gasifier is quite simple to make and can be made by ordinary people. The main materials are as follows: (take bricklaying as an example) 1. Red brick or sand brick 100-- ---150 pieces 2. 1 pack of cement 3. Lime, appropriate amount of river sand 4. Pipes: steel pipe Φ40cm, about 1.2 meters plastic pipe Φ40cm 2 pieces 5. Switch: Φ40 plastic switch 1 piece 6. Connector: Φ40 plastic elbow 4— 6 Φ40 plastic tees, 4 Φ40 iron tees: 2 7. Blower: 20-60 w 1 8. Fan speed switch 1 9. Stainless steel lunch box (16cm): 1 stove head 10. Steel Wire mesh (17×17cm): 1 piece of infrared ray generation 11. 1 burner bracket 12. 1 iron cover or iron basin 13. 1 filter 2. Key points for making a gasifier Technical key points for making a gasifier 1 . According to the test, the fuel combustion range in the gasification furnace body is almost: 30cm above and below the air inlet, and 30-45cm around the perimeter. Based on this, the following two arrangements can be made: 1. The space in the furnace body can be made into a cylindrical or square shape. Cylindrical shape, the inner diameter is 25-50cm. The advantage of this treatment is that the fuel can be fully burned from bottom to top. After reaching a certain space, the fuel will automatically fall slowly and burn continuously, and it is not easy to burn through the top and cause flameout. If the furnace body diameter If it is too large, there will often be excess fuel around the furnace body, which will prevent the fuel from falling after burning out, which will increase the height of the combustion space and make it easy to burn through. The fuel may even suddenly collapse and cause burn through. 2. The height of the air outlet can be adjusted It can be set 40-60cm above the air inlet. The advantage of this treatment is that combustible gas can be obtained from the air outlet in this range, and it can avoid the moisture in the upper fuel due to the moisture brought by the flue gas, which will affect the next use. This makes it difficult to fire. Moreover, the fuel in the upper part of the gas outlet can be temporarily used as a cover, and the flame can be left on when adding fuel. According to the above two points, the specific layout is as follows. 2. The gas outlet of the gasifier is too close to the fire source, so The gas temperature at the gas outlet is very high, and it is unbearable to use plastic pipes directly. You can add a filter, which is a device that integrates cooling, filtration and automatic sewage discharge. This device can effectively purify the gas and is fully Automatically remove the sewage and tar in the gas without causing secondary pollution to the environment. The specific production method is as shown in the figure: 3. Ventilation system: The air inlet can be directly supplied with steel pipes to the center of the furnace body, but the effect is average. This method can be adopted if the furnace body diameter is within 30cm; but if the furnace body diameter exceeds 30cm, it can be made into a four-dimensional air supply form, which will have better effects. The purpose of this treatment is to allow the fuel to be burned more fully from bottom to top. The specific production is as shown in the figure. 3. The simple layout of the gasifier. Our brick gasifier is generally arranged outdoors: The gasifier is made of red sand or sand bricks. It has low investment and simple production, and is especially suitable for Build it outdoors in the countryside. It is not afraid of wind and sun, let alone frost and rain. Choose a site outdoors within 20 meters from the stove, and build a cube pond with red bricks, sand bricks or cement bricks (the dimensions are as shown in the figure) (Indicated). During the process of building the furnace, pay attention to painting the inner wall when it reaches a certain height. First paint it with cement lime mortar, and then paint it again with cement slurry alone to enhance the air density and smoothness. The outer wall does not need to be painted, but it will be better after painting. Beautiful! You can also use cement culvert pipes, which is more trouble-free! 4. Practical Layout of Gasifiers Issues that should be paid attention to when laying out and installing our brick gasifier: 1. For the gas outlet, it is required to reserve a space of 15×15×6cm, and use barbed wire to block the opening, so as to avoid using it as much as possible. The fuel enters the filter. 2. When connecting the filter, be sure to add a tee joint for cleaning inlet. 3. When installing the pipe, make the pipe leading to the burner tilt toward the filter so that the pipe in the pipe The sewage tar all flows back into the filter, and then flows into the furnace body through the sewage discharge device, allowing the scorching high temperature in the furnace body to process and incinerate these dirt! Please don't worry about the sewage tar returning, it will never affect the furnace fire, and When you clean up the fire ashes, you will discover a big secret: the fire ashes you take out are all dry! At this point, you will smile! 5. Simple production and purchase of infrared burners for gasifiers

A round stainless steel lunch box with a diameter of 16cm and an inner support is welded to a stainless steel pipe with a diameter of 40mm and a length of 25cm. Use iron nails to drill dense holes in the inner support, and add a simple pot holder, as shown in the picture above. If you want infrared , just cover the lunch box with a steel mesh. It is such a simple thing, put it on a stand, and you can cook and fry! It is more practical than the stove you spend 50-60 yuan to buy. 6 The simple production of the gasifier iron cover is to purchase an iron plate with the size of the feed inlet round-shaped water tank. As shown in the picture above, cut off four small corners, then fold it along the solid line, weld the folding mouth, and then weld a lifting ear. 7. The simple production of the four-dimensional ventilation system is to use steel pipes welded into a cross of 20×20cm in size. The three pipe heads are closed, leaving only one end with screw threads to facilitate connection. Cut or drill holes in the same plane, and small holes. The total area is larger than the cross-sectional area of ??the air inlet pipe. When installing, pay attention to all the small holes facing downwards to facilitate the sewage flowing out of the air inlet pipe and being burned in the furnace body! 8. Filter manufacturing technology for industrial gasifiers This type of filtration The filter is made of stainless steel or aluminum plate. During production, it should be noted that all joints outside the filter are required to have threads to facilitate connection during installation. The sewage treatment device is an inverted U-shaped pipe. When the sewage reaches the horizontal pipe, it will be automatically discharged, flow into the air inlet pipe, and then enter the furnace body for incineration! The height of the household filter is 1 meter, and it has more than eight built-in cooling pipes. 9 Household gasifier Filter manufacturing technology This filter is made of stainless steel or aluminum plates. When making it, please note that all joints outside the filter are required to have threads to facilitate connection during installation. The sewage treatment device is an inverted U-shaped pipe. , when the sewage in the sewage tank is full to the horizontal pipe, it can be automatically discharged, flow into the air inlet pipe, and then enter the furnace body for incineration! The household filter has a height of 40--60cm and has four built-in cooling pipes. Above. 10. How to use the gasification furnace: Install the furnace according to the above introduction, and you can start using it after the moisture in the furnace body is slightly dry. It is best to use wood chaff for the first time. The method is as follows: 1. Only turn on the exhaust gas switch, Turn off the rest. Turn on the blower and set it to the smallest setting. Then light a handful of flammable weeds or leaves and throw them into the furnace. When the fire is strong, pour in the wood chaff until the furnace is full, press it lightly and then Just cover the furnace lid. 2. Pour the wood chaff directly into the furnace until it is full, take out part of the fuel at the ash outlet to create a small space, then turn on the blower and set it to the minimum gear, and then light a newspaper or weed plug. When the fire is a little bigger, plug the ash outlet back with bricks to complete the ignition work. When the fire is ignited and smoke is discharged from the exhaust pipe, you can turn on the fire test switch to test the ignition. If the flame can burn continuously , you can turn on the main switch and turn off other switches, and the ignition can be successful at the burner. At this time, adjust the secondary air intake switch and adjust it appropriately depending on the condition of the burner flame until the burner firepower reaches the best The usability of the gasifier is closely related to the filling. The combustion effect has little to do with the type, thickness, and length of the fuel. The filling method directly affects the combustion effect. The filling method depends on the quality of the material. Different things are different. If you fill the fuel carefully, it will burn smoothly. The key points of the filling are as follows: the fuel must be dry, with moderate tightness and proper density. The principle is: the greater the firepower in the charging furnace, the more combustible gas will be produced. The more the faster, the greater and more powerful the firepower of the stove will be. The following are the specific filling methods of some fuels for your reference. The key is for everyone to understand from practice. 11. Gasification furnace filling method 1: Wood bran, you can pour it directly into the furnace alone, just press it lightly 2: Peanut shells, you can pour it directly into the furnace alone, adding some wood bran will give a better effect, press it lightly That’s it: 3: Wood and broken firewood are put into the furnace along with wood chaff and other fine materials. If not, you can add fire ash, just fill the space around the firewood head. 4: Bamboo leaves, when you put it into the furnace It is best to be accompanied by wood chaff, if there is no fire ash, it is fine. It must be pressed heavily. 5: Straw and weeds should be compacted directly. They should be placed one layer at a time and pressed layer by layer. It is best for people to stand on it and press it. This kind of thing Filling is difficult, difficult to master, and the burning time is short. Straw, especially, contains a lot of ash, so it is recommended not to use it. 12. Gasifier cleaning method 1. During the use of the gasifier, some tar will adhere to the pipes and affect ventilation. The pipes can be cleaned regularly. The method is extremely simple. Use the stove to boil 2-3 pounds of hot water. , stop the fan to perform the following cleaning work: 1. Use 1-2 pounds of hot water above 95 degrees from the stove head directly into the pipe. 2. Use 9

1 pound of hot water above 5 degrees can be poured directly into the cleaning port outside the air outlet. The above two methods can be used separately or at the same time. Generally, the cleaning time is controlled once a week. After completion, turn on the fan and start again. It can burn immediately. 2. After the gasification furnace has been used continuously for 5-10 days, the furnace body must be cleaned of fire ash: turn off all switches, let the fire go out in a fully closed state, and open the ash outlet after cooling , take out all the gray-white dust in the lower layer, and then there will be a part of black fuel. At this point, the dust cleaning work is completed, and then use it normally according to the above ignition method. The black fuel taken out can be put back into the furnace for reuse. The ash can be mixed together and left for use with other fuels. 13. The production technology of fireproof materials: 50% cinder, 20% yellow mud, 10% plant ash, 20% cement. Hair: It is better to add 2-4 catties to 100 catties of mixture to better prevent cracking! 14. Simple production of the hot water heating system of the gasification furnace. This is a hot water circulation system. An annular stainless steel collector tube is installed in the furnace body, and an external water storage tank is used. Usually, a stainless steel tube with a diameter of 25mm and a length of 6 meters are used, rolled Form an annular pipe with a diameter of 40---50cm, and weld joints on both ends of the pipe head. During actual installation, the brickwork height can be installed when it reaches about 40cm. Pay attention to placing it above the air inlet. Yes. Pay special attention when connecting the water storage tank: the upper water outlet is connected to the upper water inlet, and the connected pipes must flow down from the water storage tank without any ups and downs, so that the water in the pipes can be heated and rise, forming Hot water circulates automatically. There are no special requirements for the water inlet pipe below. During normal use, pay attention to maintaining the lowest water level in the tank!