Vertical straw gasification incinerator

Abstract

The invention discloses a vertical straw gasification incinerator. Comprising a straw gasification incinerator body, a cooling tower and a dust removal spray tower. The straw gasification incinerator body is provided with a feeding port, straw is fed into the incinerator through the feeding port, the top of the straw gasification incinerator body is a high-temperature smoke outlet channel and is communicated with the cooling tower through the channel, and the straw gasification incinerator body is provided with a primary air return port and a secondary air return port. A hot air outlet in the upper end of the cooling tower communicates with the primary air return opening and the secondary air return opening. And the cooling tower is communicated with the dust removal spray tower through an induced draft fan. The first combustion chamber and the second combustion chamber are arranged in the straw gasification incinerator body, straw is firstly subjected to aerobic combustion and gasification in the first combustion chamber, generated high-temperature flue gas containing tar and hydrocarbon rises to the second combustion chamber to be mixed with high-temperature air and then is subjected to secondary sufficient combustion, and through the design, the combustion efficiency of the straw is greatly improved; energy in the straw can be fully released, and smoke dust pollution caused by insufficient combustion is solved.

Description

Technical Field

[0001] The invention relates to the field of straw gasification and incineration, and in particular to a vertical straw gasification and incineration furnace. Background Art

[0002] With the continuous improvement of environmental awareness and the emphasis on renewable energy, the rational treatment and utilization of straw has become a research hotspot. At present, the main ways to treat straw are direct return to the field, feed, and energy. However, direct return to the field has problems such as slow straw decomposition and affecting the planting of crops in the next season; feed is limited by the palatability of straw and animal digestion ability, and its application scope is limited. In terms of energy utilization, straw gasification and incineration technology has gradually emerged. However, some existing straw gasification and incineration equipment has many shortcomings. For example, the unreasonable structural design of some equipment leads to incomplete straw combustion, low energy utilization rate, and a large amount of pollutants, which makes it difficult to meet the increasingly stringent environmental emission standards. In addition, some equipment has poor flue gas treatment effect, and high-temperature flue gas containing pollutants such as tar and hydrocarbons is directly discharged, causing serious pollution to the atmospheric environment. Therefore, it is of great practical significance to develop a vertical straw gasification incinerator that can efficiently burn straw, fully treat flue gas, make it meet emission standards, and have a reasonable structure and good performance, which is also the research direction of the present invention. Summary of the invention

[0003] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a vertical straw gasification incinerator; a first combustion chamber and a second combustion chamber are arranged inside the main body of the straw gasification incinerator, and the straw is first aerobically burned and gasified in the first combustion chamber, and the generated high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with the high-temperature air for secondary full combustion. This design greatly improves the combustion efficiency of the straw, can fully release the energy in the straw, and reduces the energy waste caused by incomplete combustion.

[0004] The present invention is implemented in this way: a vertical straw gasification incinerator is constructed, including a straw gasification incinerator body, a cooling tower and a dust removal spray tower; the straw gasification incinerator body is provided with a feed inlet, straw is fed into the furnace through the feed inlet, the top of the straw gasification incinerator body is a high-temperature flue gas outlet channel, the cooling tower is connected through the channel, and the straw gasification incinerator body is provided with a primary return air inlet and a secondary return air inlet; the hot air outlet at the upper end of the cooling tower is respectively connected with the primary return air inlet and the secondary return air inlet; the cooling tower is connected with the dust removal spray tower through an induced draft fan.

[0005] According to the vertical straw gasification incinerator of the present invention, a cold air inlet is arranged on the side of the lower end of the cooling tower.

[0006] According to the vertical straw gasification incinerator of the present invention, the primary return air inlet is located at the lower end of the main body of the straw gasification incinerator, and the secondary return air inlet is located in the middle of the main body of the straw gasification incinerator.

[0007] According to the vertical straw gasification incinerator of the present invention, the interior of the straw gasification incinerator body is provided with a first combustion chamber and a second combustion chamber. In the first combustion chamber, aerobic combustion and gasification are carried out; high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with high-temperature air for secondary full combustion.

[0008] According to the vertical straw gasification incinerator of the present invention, the working principle of the vertical straw gasification incinerator is: the straw is put into the furnace from the feed port, and after aerobic combustion and gasification in the first combustion chamber, the high-temperature flue gas containing tar and hydrocarbons rises to the secondary combustion chamber and mixes with the high-temperature air for secondary full combustion. The high-temperature flue gas generated after combustion is cooled by an air cooler and smoke and dust are removed by a water mist tower before being discharged into the atmosphere after meeting the standards.

[0009] According to the vertical straw gasification incinerator of the present invention, the main body and configuration are as follows: the main body of the HR type straw gasification incinerator is composed of the first combustion chamber and the second combustion chamber, and is equipped with a high-temperature flue gas air-cooled water mist dust collector. It is equipped with a 220V, 3kw induced draft fan; a 220V, 1.5kw blower; and a 220V, 1.1kw high-pressure hot water pump.

[0010] The vertical straw gasification incinerator according to the present invention is characterized in that the straw gasification incinerator has a furnace diameter of 2000 mm and a furnace height of 3800 mm; and an air-cooled water mist tower has a diameter of 1000 mm and a height of 3800 mm.

[0011] The present invention has the following advantages: (1) Efficient combustion: The main body of the straw gasification incinerator is equipped with a first combustion chamber and a second combustion chamber. The straw is first burned and gasified in the first combustion chamber. The high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with the high-temperature air for secondary full combustion. This design greatly improves the combustion efficiency of the straw, can fully release the energy in the straw, and reduces the energy waste caused by incomplete combustion.

[0012] (2) Optimized flue gas treatment: Through the coordination of cooling towers, dust removal spray towers and other equipment, the high-temperature flue gas generated after combustion is first cooled by an air cooler, and then passed through a water mist tower to eliminate smoke and dust, effectively removing pollutants such as tar and hydrocarbons in the flue gas, so that the final flue gas emissions can meet the standards, reduce pollution to the atmospheric environment, and meet environmental protection requirements.

[0013] (3) Reasonable structural design: The primary return air inlet is located at the lower end of the main body of the straw gasification incinerator, the secondary return air inlet is located in the middle, and the hot air outlets at the upper end of the cooling tower are connected to them respectively, which can reasonably guide the hot air circulation and provide appropriate air volume and temperature conditions for the combustion process in different parts, which helps to improve the overall combustion effect. At the same time, a cold air inlet is set on the side of the lower end of the cooling tower, which can flexibly adjust the temperature in the cooling tower to ensure stable operation of the equipment.

[0014] (4) Standardized configuration: The main components of the LX straw gasification incinerator and the specifications of the supporting equipment are clarified, such as a 220V, 3kw induced draft fan, a 220V, 1.5kw blower, and a 220V, 1.1kw high-pressure hot water pump. This standardizes the overall configuration of the equipment and facilitates manufacturing, installation, commissioning, and subsequent maintenance.

[0015] (5) Appropriate size specifications: The diameter of the straw gasification incinerator is 2000mm and the height is 3800mm; the diameter of the air-cooled water mist tower is 1000mm and the height is 3800mm. This size design has been optimized to ensure the equipment's ability to process straw while taking into account space occupancy and equipment stability, and is suitable for a variety of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a vertical straw gasification incinerator; Among them: the straw gasification incinerator body 1, the primary return air inlet 1-1, the secondary return air inlet 1-2, the cooling tower 2, the cold air inlet 2-1, the dust removal spray tower 3, the feed inlet 4, the high-temperature flue gas outlet channel 5, and the induced draft fan 6. DETAILED DESCRIPTION

[0017] The following will be combined with the attached Figure 1 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention provides a vertical straw gasification incinerator. Figure 1As shown, it can be implemented in the following manner; it includes a straw gasification incinerator body 1, a cooling tower 2 and a dust removal spray tower 3; the straw gasification incinerator body 1 has a feed inlet 4, and the straw is fed into the furnace through the feed inlet. The top of the straw gasification incinerator body 1 is a high-temperature flue gas outlet channel 5, which is connected to the cooling tower 2 through the channel. The straw gasification incinerator body 1 has a primary return air inlet 1-1 and a secondary return air inlet 1-2; the hot air outlet at the upper end of the cooling tower 2 is connected to the primary return air inlet 1-1 and the secondary return air inlet 1-2 respectively; the cooling tower 2 and the dust removal spray tower 3 are connected through an induced draft fan 6.

[0019] In the vertical straw gasification incinerator of the present invention, a cold air inlet 2-1 is arranged on the lower side of the cooling tower 2.

[0020] In the vertical straw gasification incinerator of the present invention, the primary return air inlet 1-1 is located at the lower end of the main body 1 of the straw gasification incinerator, and the secondary return air inlet 1-2 is located in the middle of the main body 1 of the straw gasification incinerator.

[0021] In the vertical straw gasification incinerator of the present invention, the interior of the straw gasification incinerator body 1 is provided with a first combustion chamber and a second combustion chamber. In the first combustion chamber, aerobic combustion and gasification are carried out; high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with high-temperature air for secondary full combustion.

[0022] In the vertical straw gasification incinerator described in the present invention; the working principle of the vertical straw gasification incinerator is: straw is put into the furnace from the feed port, and after aerobic combustion and gasification in the first combustion chamber, the high-temperature flue gas containing tar and hydrocarbons rises to the secondary combustion chamber and mixes with high-temperature air for secondary full combustion. The high-temperature flue gas generated after combustion is cooled by an air cooler and smoke and dust are removed by a water mist tower before being discharged into the atmosphere after meeting the standards.

[0023] In the vertical straw gasification incinerator of the present invention; main body and configuration: the main body of the HR type straw gasification incinerator consists of a first combustion chamber and a second combustion chamber, and is equipped with a high-temperature flue gas air-cooled water mist dust collector. It is equipped with a 220V, 3kw induced draft fan; a 220V, 1.5kw blower; and a 220V, 1.1kw high-pressure hot water pump.

[0024] In the vertical straw gasification incinerator of the present invention, the straw gasification incinerator has a furnace diameter of 2000 mm and a furnace height of 3800 mm; the air-cooled water mist tower has a diameter of 1000 mm and a height of 3800 mm.

[0025] The following is a detailed description of the implementation process of the vertical straw gasification incinerator: (1) Equipment installation: Installation of the main body: Place the main body of the HR type straw gasification incinerator at the selected site, and ensure that its foundation is stable and can withstand the weight and vibration of the equipment during operation. The main body of the straw gasification incinerator has a furnace diameter of 2000mm and a furnace height of 3800mm, so sufficient operating space must be reserved.

[0026] Cooling tower installation: Install a cooling tower at a suitable location near the main body of the straw gasification incinerator, with a diameter of 1000mm and a height of 3800mm. Aim the cold air inlet 2-1 on the lower side of the cooling tower in an appropriate direction to introduce cold air from the outside. At the same time, the hot air outlet at the upper end of the cooling tower is accurately connected to the primary return air inlet 1-1 and the secondary return air inlet 1-2 of the main body of the straw gasification incinerator through pipes to ensure smooth hot air circulation. The primary return air inlet is located at the lower end of the main body of the straw gasification incinerator, and the secondary return air inlet is located in the middle. During installation, it is necessary to ensure that the connection is tight to prevent air leakage.

[0027] Installation of dust removal spray tower: Place the dust removal spray tower after the cooling tower and connect the two through the induced draft fan 6. The power of the induced draft fan is 220V, 3kw. During installation, ensure that it is firmly connected to the pipeline and the induced draft fan runs in the correct direction, which can effectively introduce the treated flue gas in the cooling tower into the dust removal spray tower.

[0028] Installation of supporting equipment: Install a 220V, 1.5kw blower at a suitable location to ensure that it can provide sufficient air to the main body of the straw gasification incinerator to meet the combustion requirements. At the same time, install a 220V, 1.1kw high-pressure hot water pump to provide water for the water mist tower to achieve smoke and dust removal functions.

[0029] (2) Debugging and running: Equipment inspection: Before operation, check whether the connections between the equipment are tight, whether the pipes are damaged or blocked, whether the wiring of the electrical equipment is correct, and whether the insulation performance is good. At the same time, check whether the cold air inlet and hot air outlet of the cooling tower, the feed inlet, primary return air inlet, secondary return air inlet of the main body of the straw gasification incinerator, and the relevant interfaces of the dust removal spray tower are normal.

[0030] No-load debugging: First turn on the induced draft fan, blower and high-pressure hot water pump, and run them for a period of time without load, and observe the operating status of each device, including the motor speed, equipment vibration, abnormal noise, etc. Check whether the operating parameters of each device are within the normal range, such as the air volume and air pressure of the induced draft fan, and the air supply volume of the blower.

[0031] Load debugging: After confirming that the no-load operation is normal, slowly feed an appropriate amount of straw through the feed port and start the straw gasification incinerator. Observe the aerobic combustion and gasification process of the straw in the first combustion chamber to ensure stable combustion. At this time, the high-temperature flue gas containing tar and hydrocarbons will rise to the second combustion chamber and mix with the high-temperature air entering from the primary and secondary return air ports for secondary full combustion. Pay attention to the combustion conditions of the two combustion chambers, and optimize the combustion effect by adjusting parameters such as the air supply volume of the blower.

[0032] Flue gas treatment commissioning: The high-temperature flue gas generated by combustion enters the cooling tower, and an appropriate amount of cold air is introduced through the cold air inlet to adjust the temperature in the cooling tower so that the high-temperature flue gas is initially cooled. Then, the cooled flue gas is introduced into the dust removal spray tower through the induced draft fan, and the water mist provided by the high-pressure hot water pump is used to eliminate smoke and dust. In this process, the temperature, composition and other parameters of the flue gas are continuously monitored to ensure that the treated flue gas can meet the standards and be discharged into the atmosphere. According to the monitoring results, the air volume of the cold air inlet, the spray intensity of the water mist and other parameters are adjusted in time to achieve the best flue gas treatment effect.

[0033] (3) Daily operation and maintenance: Daily operation: During the normal operation of the equipment, continuously monitor the operating parameters of each device, including temperature, pressure, air volume, current, etc., and keep records. According to the straw feed amount and combustion conditions, adjust the air supply of the blower in time to ensure that the straw is fully burned. At the same time, pay attention to the temperature changes in the cooling tower, and maintain the appropriate temperature by adjusting the air volume at the cold air inlet to ensure stable operation of the equipment.

[0034] Regular maintenance: Perform a comprehensive inspection and maintenance of the equipment regularly. Check whether the connection parts of each device are loose, whether the pipes are worn or corroded, and repair or replace them in time if there are any problems. Clean the ash and slag in the combustion chamber to ensure that the combustion space is unobstructed. Maintain the induced draft fan, blower, high-pressure hot water pump and other equipment, check the lubrication of the motor, and add or replace the lubricating oil in time to ensure the normal service life of the equipment.

[0035] The working principle of the present invention is: straw is put into the furnace from the feed port, and after aerobic combustion and gasification in the first combustion chamber, the high-temperature flue gas containing tar and hydrocarbons rises to the secondary combustion chamber and mixes with the high-temperature air for secondary full combustion. The high-temperature flue gas generated after combustion is cooled by an air cooler and smoke and dust are removed by a water mist tower before being discharged into the atmosphere after meeting the standards.

[0036] Main body and configuration: The main body of the LX type straw gasification incinerator consists of the first combustion chamber and the second combustion chamber, and is equipped with a high-temperature flue gas air-cooled water mist dust collector. It is equipped with a 220V, 3kw induced draft fan; a 220V, 1.5kw blower; and a 220V, 1.1kw high-pressure hot water pump.

[0037] The LX type straw gasification incineration furnace has a furnace diameter of 2000mm and a furnace height of 3800mm; the air-cooled water mist tower has a diameter of 1000mm and a height of 3800mm.

[0038] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical straw gasification incinerator, characterized in that; The invention comprises a straw gasification incinerator body (1), a cooling tower (2) and a dust removal spray tower (3); the straw gasification incinerator body (1) has a feed inlet (4), through which straw is fed into the furnace; the top of the straw gasification incinerator body (1) is a high-temperature flue gas outlet channel (5), which is connected to the cooling tower (2); the straw gasification incinerator body (1) has a primary return air inlet (1-1) and a secondary return air inlet (1-2); the hot air outlet at the upper end of the cooling tower (2) is connected to the primary return air inlet (1-1) and the secondary return air inlet (1-2) respectively; the cooling tower (2) and the dust removal spray tower (3) are connected via an induced draft fan (6).

2. The vertical straw gasification incinerator according to claim 1, characterized in that; A cold air inlet (2-1) is provided on the side of the lower end of the cooling tower (2).

3. The vertical straw gasification incinerator according to claim 1, characterized in that; The primary return air inlet (1-1) is located at the lower end of the straw gasification incinerator body (1), and the secondary return air inlet (1-2) is located in the middle of the straw gasification incinerator body (1).

4. The vertical straw gasification incinerator according to claim 1, characterized in that; The straw gasification incinerator body (1) has a first combustion chamber and a second combustion chamber inside. In the first combustion chamber, after aerobic combustion and gasification, high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with high-temperature air for secondary full combustion.

5. The vertical straw gasification incinerator according to claim 1, characterized in that; The working principle of the vertical straw gasification incinerator is as follows: straw is put into the furnace from the feed port, and after aerobic combustion and gasification in the first combustion chamber, the high-temperature flue gas containing tar and hydrocarbons rises to the second combustion chamber and mixes with the high-temperature air for secondary full combustion. The high-temperature flue gas generated after combustion is cooled by an air cooler and smoke and dust are removed by a water mist tower before being discharged into the atmosphere after meeting the standards.

6. The vertical straw gasification incinerator according to claim 1, characterized in that; The main body of the straw gasification incinerator is equipped with a high-temperature flue gas air-cooled water mist dust collector; a 220V, 3kw induced draft fan; a 220V, 1.5kw blower; and a 220V, 1.1kw high-pressure hot water pump.

7. The vertical straw gasification incinerator according to claim 1, characterized in that; The straw gasification incineration furnace has a furnace diameter of 2000mm and a furnace height of 3800mm; the air-cooled water mist tower has a diameter of 1000mm and a height of 3800mm.

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