A device for storing and transporting corn stalks for biomass gasification

Abstract

The utility model relates to the technical field of picking instrument, provide a device for the storage and transportation of biomass gasification corn straw, including stock bin, four screw feeder, blanking tube, baffle door, material plug screw feeder and unpowered pipe, the stock bin is installed on the furnace front steel frame, the material conveying belt is set up above the stock bin, four screw feeder is connected below the stock bin through four screw feeder feed inlet, blanking tube is set below four screw feeder, material plug screw feeder is installed below blanking tube, baffle door is set between blanking tube and material plug screw feeder, material plug screw feeder discharge gate is connected with unpowered pipe, unpowered pipe is connected with furnace, avoid raw material feed inlet air suction.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass feeding systems, specifically to a device for storing and transporting corn stalks for biomass gasification. Background Technology

[0002] Biomass refers to various organic matter formed through photosynthesis. Corn stalks are one of the main biomass energy sources in China. Oxygen is used as a catalyst for biomass combustion. The gasification principle of biomass gasification furnace is to consume the oxygen content in the furnace and produce a large amount of high-temperature CO, H2, CH4 and other combustible gases by using negative pressure smoldering. Therefore, controlling the oxygen content in the furnace is the key to whether gas can be produced.

[0003] Currently used biomass carbonization furnaces, such as screw conveyors or chain conveyors, generally include a combustion chamber and a carbonization chamber located above the combustion chamber. Corresponding feeding and discharging devices are configured at the inlet and outlet of the carbonization chamber. During operation, biomass raw materials enter the carbonization chamber through the feeding device at the inlet. The high-temperature flue gas generated in the combustion chamber is used to indirectly heat the biomass raw materials in the carbonization chamber. Biomass carbonization takes place in the high-temperature and oxygen-free environment of the carbonization chamber. The carbonized biomass char is discharged from the outlet through the discharging device.

[0004] Currently used carbonization chambers generally employ open-type feeding and discharging devices, which allows external air to easily enter the carbonization chamber through the inlet and outlet. This makes it difficult to ensure an oxygen-free or oxygen-deficient environment in the carbonization chamber, thereby reducing the effectiveness of biomass raw materials in carbonization and the quality of carbonized products. In addition, corn stalks are dense, lightweight, clump-forming, loose, and prone to tangling and bridging during transportation, causing poor material conveying and discharging. Therefore, the pre-furnace feeding system suffers from technical problems of material blockage and poor air sealing. Utility Model Content

[0005] The purpose of this invention is to provide a device for storing and transporting corn stalks used in biomass gasification, which can solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model proposes a device for storing and transporting corn stalks for biomass gasification, comprising a silo, a four-spiral feeder, a discharge pipe, a baffle gate, a plug screw feeder, and a non-powered pipe. The silo is installed on the steel frame in front of the furnace, and a conveyor belt is installed above the silo. The four-spiral feeder is connected to the bottom of the silo through its inlet. The discharge pipe is located below the four-spiral feeder, and the plug screw feeder is installed below the discharge pipe. The baffle gate is located between the discharge pipe and the plug screw feeder. The outlet of the plug screw feeder is connected to the non-powered pipe, and the non-powered pipe is connected to the furnace.

[0007] Further configured, the four-spiral feeder includes a housing, a four-spiral feeder spiral shaft is disposed inside the housing, four-spiral feeder spiral blades are disposed above the four-spiral feeder spiral shaft, and a four-spiral feeder motor is installed at the end of the four-spiral feeder spiral shaft.

[0008] A further configuration includes a four-spiral feeder inlet on the upper side wall of the housing, an observation port for the four-spiral feeder on one side of the inlet, and a four-spiral feeder outlet on the lower side wall of the housing corresponding to the observation port.

[0009] The feeder is further configured such that it includes a housing, a feeder screw shaft is disposed inside the housing, feeder screw blades are disposed on the feeder screw shaft, and a feeder motor is installed at the end of the feeder screw shaft.

[0010] A further configuration includes a feed inlet for a screw feeder installed on the top of the housing and a discharge outlet for a screw feeder at the end of the housing.

[0011] Further configured, the screw shaft of the feed plug screw feeder is configured as conical.

[0012] Further configured, the hopper is shaped with a smaller top and a larger bottom.

[0013] A further configuration is provided, wherein a transition plate is installed between the discharge port of the four-spiral feeder and the inlet of the plug screw feeder, and a baffle gate is provided through the transition plate.

[0014] A further configuration is provided, wherein a hydraulic cylinder is provided at the end of the baffle gate, and the hydraulic cylinder is located on the outside of the transition plate.

[0015] A further provision is made that a baffle gate is provided between the feed inlet of the four-spiral feeder and the conveyor belt.

[0016] The beneficial effects of one or more of the above technical solutions:

[0017] (1) By installing a transition plate between the discharge port of the four spiral feeder and the feed port of the plug spiral feeder, and installing a baffle door on the transition plate, the baffle door is controlled by a hydraulic cylinder. When the plug spiral feeder is blocked, the baffle door is closed in time so that the corn stalks no longer enter the plug spiral feeder and air is avoided from being sucked into the raw material feed port.

[0018] (2) The hopper of this utility model is shaped with a smaller top and a larger bottom to receive and store the corn stalks conveyed by the feeding belt. The bottom is connected to the inlet of the four spiral feeder to ensure that the hopper will not be blocked. The spiral shaft of the feeder is set as conical. By rotating the spiral shaft of the feeder, the corn stalks in the feeder 6 and the non-powered pipe 7 are pushed into the furnace. The surface of the conical spiral shaft of the feeder guides the corn, which facilitates the guidance and pushing of the corn stalks into the furnace and reduces the blockage. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the four-spiral feeder of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the screw feeder of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the baffle door of this utility model.

[0024] In the diagram: 1. Steel frame; 2. Hopper; 3. Four-spiral feeder; 4. Drop pipe; 5. Baffle gate; 6. Plug screw feeder; 7. Non-powered pipe; 8. Furnace; 9. Conveying belt; 10. Four-spiral feeder inlet; 11. Four-spiral feeder screw blades; 12. Four-spiral feeder screw shaft; 13. Four-spiral feeder motor; 14. Four-spiral feeder outlet; 15. Four-spiral feeder observation port; 16. Plug screw feeder outlet; 17. Plug screw feeder inlet; 18. Plug screw feeder motor; 19. Plug screw feeder screw blades; 20. Plug screw feeder screw shaft; 21. Transition plate; 22. Hydraulic cylinder. Detailed Implementation

[0025] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0026] Reference Figure 1A device for storing and transporting corn stalks for biomass gasification includes a silo 2, a four-spiral feeder 3, a discharge pipe 4, a baffle gate 5, a feed plug screw feeder 6, and a non-powered pipe 7. The silo 2 is installed on the front steel frame 1 of the furnace. A conveyor belt 9 is installed above the silo 2. The four-spiral feeder 3 is connected to the bottom of the silo 2 through the feed inlet of the four-spiral feeder 3. The discharge pipe 4 is located below the four-spiral feeder 3. The feed plug screw feeder 6 is installed below the discharge pipe 4. The baffle gate 5 is located between the discharge pipe 4 and the feed plug screw feeder 6. The discharge port 16 of the feed plug screw feeder is connected to the non-powered pipe 7. The non-powered pipe 7 is connected to the furnace 8.

[0027] Reference Figure 2 The four-spiral feeder 3 includes a housing, a spiral shaft 12 inside the housing, spiral blades 11 above the spiral shaft 12, and a motor 13 installed at the end of the spiral shaft 12. The motor 13 drives the spiral shaft 12 to rotate, thereby conveying corn stalks.

[0028] The upper side wall of the housing has a feed inlet for the four-spiral feeder 3. An observation port 15 for the four-spiral feeder 3 is provided on one side of the feed inlet. The lower side wall of the housing has a discharge port for the four-spiral feeder 3 corresponding to the observation port 15. The observation port 15 is located above the discharge port of the four-spiral feeder 3 to facilitate observation of the discharge status of the four-spiral feeder 3.

[0029] Reference Figure 3 The feeder screw feeder 6 includes a housing, inside which a feeder screw shaft 20 is installed. Feeder screw blades 19 are installed on the feeder screw shaft 20. A feeder motor 16 is installed at the end of the feeder screw shaft 20. The feeder screw blades 19 are welded to the feeder screw shaft 20. The feeder screw shaft 20 is rotated by the feeder motor 16 to achieve the purpose of conveying corn stalks, and at the same time pushes the material accumulated in the non-powered pipe 7 into the furnace 8.

[0030] The feed inlet of the screw feeder is installed on the top of the shell, and the discharge outlet 16 of the screw feeder is set at the end of the shell. The feed inlet of the four screw feeder 3 receives the corn stalks in the hopper 2, so that the corn stalks enter the four screw feeder 3.

[0031] The screw shaft 20 of the feeder is set in a conical shape. By rotating the screw shaft 20, the corn stalks in the feeder 6 and the non-powered pipe 7 are pushed into the furnace 8. The conical shape facilitates guiding and pushing the corn stalks into the furnace 8.

[0032] The hopper 2 is shaped like a smaller top and a larger bottom. It is located below the feeding belt and receives and stores the corn stalks transported by the feeding belt. The bottom is connected to the inlet of the four-spiral feeder 3 to ensure that the hopper 2 will not be blocked.

[0033] Reference Figure 4 A transition plate 21 is installed between the discharge port of the four-spiral feeder 3 and the inlet 17 of the plug screw feeder. A baffle gate 5 is installed through the transition plate 21. A hydraulic cylinder 22 is installed at the end of the baffle gate 5. The hydraulic cylinder 22 is located outside the transition plate 21 and controls the pull-back movement of the baffle gate 5. The baffle gate 5 is located between the discharge pipe 4 and the plug screw feeder 6. Its function is to close the plug screw feeder 6 in time after it is blocked, so that the corn stalks will no longer enter the plug screw feeder 6. The discharge port 16 of the plug screw feeder is connected to the non-powered pipe 7, and the non-powered pipe 7 is connected to the furnace 8.

[0034] A baffle gate 5 is installed between the feed inlet of the four-spiral feeder 3 and the conveyor belt 9 to prevent air from being drawn into the raw material feed inlet.

[0035] During operation, corn stalks are conveyed from the conveyor belt 9 to the hopper 2, and then enter the four-spiral feeder 3. With the adjacent spiral shafts of the four-spiral feeder 3 rotating in opposite directions, the corn stalks are conveyed to the drop pipes 4 on the two feed plug spiral feeders 6, thus entering the two feed plug spiral feeders 6. By rotating the spiral shaft 20 of the feed plug spiral feeder, the corn stalks in the feed plug spiral feeder 6 and the non-powered pipe 7 are pushed into the furnace 8. When the feed plug spiral feeder 6 or the non-powered pipe 7 is blocked, the baffle door 5 is closed, and the blockage can be cleared and repaired.

[0036] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A device for storing and transporting corn stalks used in biomass gasification, characterized in that, The system includes a hopper, a four-spiral feeder, a discharge pipe, a baffle gate, a plug screw feeder, and a non-powered pipe. The hopper is installed on the steel frame in front of the furnace, and a conveyor belt is installed above the hopper. The four-spiral feeder is connected to the bottom of the hopper through its inlet. The discharge pipe is located below the four-spiral feeder, and the plug screw feeder is installed below the discharge pipe. The baffle gate is located between the discharge pipe and the plug screw feeder. The outlet of the plug screw feeder is connected to the non-powered pipe, which is connected to the furnace.

2. The device for storing and transporting corn straw for biomass gasification according to claim 1, characterized in that, The four-spiral feeder includes a housing, a spiral shaft inside the housing, spiral blades above the spiral shaft, and a motor installed at the end of the spiral shaft.

3. The device for storing and transporting corn stalks for biomass gasification according to claim 2, characterized in that, A four-spiral feeder inlet is provided on the upper side wall of the shell, and a four-spiral feeder observation port is provided on one side of the four-spiral feeder inlet. A four-spiral feeder outlet is provided on the lower side wall of the shell corresponding to the four-spiral feeder observation port.

4. The device for storing and transporting corn straw for biomass gasification according to claim 1, characterized in that, The feeder screw feeder includes a housing, a screw shaft inside the housing, screw blades on the screw shaft, and a motor at the end of the screw shaft.

5. The device for storing and transporting corn stalks for biomass gasification according to claim 4, characterized in that, The feed inlet of the screw feeder is installed on the top of the housing, and the discharge outlet of the screw feeder is set at the end of the housing.

6. The device for storing and transporting corn straw for biomass gasification according to claim 1, characterized in that, The screw shaft of the feed plug screw feeder is set in a conical shape.

7. The device for storing and transporting corn stalks for biomass gasification according to claim 1, characterized in that, The hopper is shaped like a smaller top and a larger bottom.

8. The device for storing and transporting corn stalks for biomass gasification according to claim 1, characterized in that, A transition plate is installed between the discharge port of the four spiral feeder and the inlet of the plug spiral feeder, and a baffle gate is installed through the transition plate.

9. The device for storing and transporting corn straw for biomass gasification according to claim 1, characterized in that, A hydraulic cylinder is installed at the end of the baffle gate, and the hydraulic cylinder is located on the outside of the transition plate.

10. The device for storing and transporting corn straw for biomass gasification according to claim 1, characterized in that, A baffle gate is installed between the feed inlet of the quad spiral feeder and the conveyor belt.

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