Biomass gasification furnace buffer bin

Abstract

The utility model provides a kind of biomass gasification furnace buffer bin, including bin, still including water pump and air extractor;A layer of water jacket is arranged outside the bin, and water jacket is provided with inlet and outlet, and the water pump is connected to the inlet of water jacket by inlet pipe;Air inlet pipe and air outlet pipe are arranged on the bin, and the air extractor is connected to the air outlet pipe of the bin.The utility model solves the problem of single biomass raw material used in traditional gasification furnace, and fundamentally solves the use of biomass with porous structure such as corn cob.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of biomass gasification furnaces, specifically a buffer silo for a biomass gasification furnace. Background Technology

[0002] Biomass gasification furnaces convert macromolecules of biomass, such as cellulose, hemicellulose, and lignin, into smaller molecules of biomass combustible gas, biochar, and liquid. The main combustible components of biomass combustible gas are CO, H2, and CH4, with trace amounts of CnHm (n>1). It can be widely used in various fields of industrial and agricultural production, such as power generation, gas supply, and heating (replacing coal combustion).

[0003] In existing technologies, upward-suction gasifiers suffer from low outlet temperatures, leading to excessive condensate and tar. When using feedstocks such as corn cobs, the feedstock's natural hygroscopicity and porous structure allow it to absorb moisture from the environment. Under high humidity or significant temperature differences, moisture easily accumulates between particles, causing volume expansion. This expansion leads to feedstock accumulation, which can cause difficulties in feeding or even prevent feeding altogether, resulting in serious problems such as gasifier shutdown. Therefore, traditional gasifiers rely on a relatively limited variety of biomass feedstocks. Utility Model Content

[0004] To address the shortcomings of current technology, this utility model, combining existing technology and based on practical application, provides a buffer silo for a biomass gasification furnace. This solves the problem of using a single biomass raw material in traditional gasification furnaces and fundamentally addresses the use of porous biomass such as corn cobs.

[0005] The technical solution of this utility model is as follows: A buffer silo for a biomass gasification furnace includes a silo body, a water pump, and an exhaust fan; The outer side of the chamber is provided with a water jacket, which has an inlet and an outlet. The water pump is connected to the inlet of the water jacket through an inlet pipe. The chamber is equipped with an air inlet pipe and an air outlet pipe, and the exhaust fan is connected to the air outlet pipe of the chamber.

[0006] Furthermore, the silo body has a cylindrical structure, with an upper connecting flange and a lower connecting flange at the upper and lower ends of the silo body. The upper connecting flange and the lower connecting flange are used to connect the upper feeding valve and the lower feeding valve of the gasifier, respectively.

[0007] Furthermore, an inlet valve is provided on the inlet water pipe, and an outlet valve is provided at the outlet of the water jacket.

[0008] Furthermore, the water inlet of the water jacket is located at the upper part of the water jacket, and the water outlet is located at the lower part of the water jacket.

[0009] Furthermore, an exhaust solenoid valve is installed on the exhaust pipe of the chamber, and an intake solenoid valve is installed on the intake pipe.

[0010] Furthermore, the air outlet pipe is located at the lower part of the chamber, and the air inlet pipe is located at the upper part of the chamber.

[0011] The beneficial effects of this utility model are: In this invention, a water jacket is installed at the buffer silo body to keep the jacket constantly filled with cold water, thus solving the problem of high internal temperature in the silo body. Air inlet and outlet structures are incorporated into the silo body to expel high-humidity gas from the buffer silo and introduce external dry, cold air. Therefore, the structural design of this buffer silo solves the problem of high-temperature and high-humidity environments within the silo, preventing raw material accumulation and ensuring smooth feeding. This fundamentally addresses the use of porous biomass such as corn cobs, expanding the range of biomass feedstocks available for biomass gasification furnaces. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the buffer silo structure.

[0013] Appendix Figure 2 This is a schematic diagram showing the installation location of the buffer silo.

[0014] The following are the labels shown in the attached diagram: 1. Upper connecting flange; 2. Silo body; 3. Water jacket; 4. Water pump; 5. Inlet water pipe; 6. Inlet water valve; 7. Outlet water valve; 8. Lower connecting flange; 9. Air inlet pipe; 10. Air inlet solenoid valve; 11. Air outlet solenoid valve; 12. Air outlet pipe; 13. Exhaust fan; 14. Upper feed valve; 15. Lower feed valve. Detailed Implementation

[0015] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0016] This embodiment provides a buffer silo for a biomass gasification furnace. For example... Figure 1 As shown, this buffer silo mainly includes a silo body 2, which has a cylindrical structure to facilitate smooth material discharge. An upper connecting flange 1 and a lower connecting flange 8 are respectively installed at the upper and lower ends. (Reference) Figure 2As shown, this buffer hopper is located below the feed port of the gasifier, between the upper feed valve 14 and the lower feed valve 15, and is connected to the corresponding upper feed valve 14 and lower feed valve 15 through the upper connecting flange 1 and the lower connecting flange 8.

[0017] The buffer silo also includes a water pump 4 and an exhaust fan 13. A water jacket 3 is installed outside the silo body 2, with an inlet and an outlet. The water pump 4 is connected to the inlet of the water jacket 3 via an inlet pipe 5, with an inlet valve 6 on the inlet pipe 5 and an outlet valve 7 at the outlet. The inlet is located at the upper part of the water jacket 3, and the outlet is located at the lower part. The water pump 4 fills the water jacket 3 with circulating cold water, achieving the purpose of cooling the interior of the silo body 2.

[0018] An air inlet pipe 9 and an air outlet pipe 12 are also provided on the chamber body 2. The air inlet pipe 9 is located at the upper part of the chamber body 2, and the air outlet pipe 12 is located at the lower part of the chamber body 2. An exhaust fan 13 is connected to the air outlet pipe 12 of the chamber body 2, and an exhaust solenoid valve 11 is provided on the air outlet pipe 12. An intake solenoid valve 10 is provided on the air inlet pipe 9. Moisture inside the chamber body 2 is extracted through the air passage structure.

[0019] In this embodiment, the water jacket 3 is always kept full of water to solve the problem of high temperature inside the chamber 2. Specifically, after the water pump 4 draws water from the water tank, it is pumped into the water jacket 3 through the water inlet pipe 5 and the water inlet valve 6. The water inlet valve 6 can adjust the water flow rate. After the jacket is full, the water outlet valve 7 is opened, and the water flows back into the water tank through the pipe. This keeps the water jacket 3 full of cold water, thus solving the problem of high temperature inside the chamber 2.

[0020] By opening the exhaust solenoid valve 11, the exhaust fan 13 discharges the high-humidity gas in the chamber 2 through the exhaust pipe 12. To avoid creating a negative pressure state, the intake solenoid valve 10 is then opened, and dry, cold air from the outside is introduced through the intake pipe 9.

[0021] The above measures have solved the problem of high temperature and high humidity environment in silo 2, so that the material will not accumulate and block in silo 2. As a result, the biomass gasification furnace can use biomass raw materials with porous structures such as corn cobs, and is no longer limited to traditional single raw materials.

Claims

1. A buffer silo for a biomass gasification furnace, comprising a silo body, characterized in that, It also includes water pumps and exhaust fans; The outer side of the chamber is provided with a water jacket, which has an inlet and an outlet. The water pump is connected to the inlet of the water jacket through an inlet pipe. The chamber is equipped with an air inlet pipe and an air outlet pipe, and the exhaust fan is connected to the air outlet pipe of the chamber.

2. The biomass gasification furnace buffer silo according to claim 1, characterized in that, The silo body has a cylindrical structure, with an upper connecting flange and a lower connecting flange at the upper and lower ends. The upper connecting flange and the lower connecting flange are used to connect the upper feeding valve and the lower feeding valve of the gasifier, respectively.

3. The biomass gasification furnace buffer silo according to claim 1, characterized in that, The water inlet pipe is equipped with an inlet valve, and the water outlet of the water jacket is equipped with an outlet valve.

4. The biomass gasification furnace buffer silo according to claim 1, characterized in that, The water inlet of the water jacket is located at the upper part of the water jacket, and the water outlet is located at the lower part of the water jacket.

5. The biomass gasification furnace buffer silo according to claim 1, characterized in that, An exhaust solenoid valve is installed on the exhaust pipe of the chamber, and an intake solenoid valve is installed on the intake pipe.

6. The biomass gasification furnace buffer silo according to claim 1, characterized in that, The air outlet pipe is located at the lower part of the chamber, and the air inlet pipe is located at the upper part of the chamber.

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