Biomass windlock seal conveyor

Abstract

This utility model discloses a biomass airlock sealed conveyor, including a conveying cylinder, a conveying shaft, a water-cooled cylinder, a motor, and a reducer. The conveying cylinder is coaxially disposed inside the water-cooled cylinder, with an inlet and an outlet at both ends. The conveying shaft is coaxially disposed inside the conveying cylinder, and conveying blades are welded to its outer wall. A pair of sealing end caps are symmetrically connected to both ends of the conveying cylinder and the water-cooled cylinder. The motor drives the conveying shaft to rotate through the reducer and coupling, continuously conveying the material from the inlet to the outlet. Through its unique structural design, this conveyor forms a material accumulation at the inlet, utilizing the material itself to build a sealing layer, effectively preventing external air from entering the pyrolysis device. The water-cooling system efficiently cools the material, ensuring stable conveying under sealed and temperature-controlled conditions. This equipment has advantages such as compact structure, excellent sealing performance, high cooling efficiency, and stable operation, and is particularly suitable for biomass pyrolysis and gasification processes.

Description

Technical Field

[0001] This utility model relates to the technical field of screw conveyors, specifically to a biomass airlock sealed conveyor. Background Technology

[0002] In the field of biomass processing, especially in high-temperature processes such as pyrolysis and gasification, continuous and stable material transport and good sealing performance are key factors to ensure the normal operation of the system. Traditional screw conveyors generally suffer from poor sealing and insufficient temperature control in practical applications, allowing external air to easily enter the conveying system, affecting process stability and product quality. Furthermore, if high-temperature materials are not effectively cooled during transport, their physical state or chemical composition may change, thus affecting subsequent processing results.

[0003] In addition, most existing screw conveyor devices adopt a single-function design and lack structural optimization for specific process requirements (such as biomass pyrolysis). Although some improvement schemes have improved in terms of cooling or sealing, they are still insufficient in terms of structural compactness, ease of operation and overall system sealing reliability, making it difficult to meet the high standards of efficient and stable operation required in industrial sites.

[0004] Especially in biomass pyrolysis processes, pyrolysis products typically need to be continuously discharged under air-isolated conditions. If the airtight seal of the conveying device is inadequate, not only will external air enter the system, interfering with the pyrolysis reaction environment, but it may also cause internal flammable gas leaks, posing safety hazards. Therefore, developing a biomass conveying device with efficient airtight sealing and water-cooled temperature control capabilities has become a critical technical problem that the industry urgently needs to solve.

[0005] To overcome the above-mentioned defects, this utility model proposes a biomass airlock sealing conveyor that integrates airlock sealing and water-cooled temperature control functions. It aims to improve the sealing performance, temperature control capability, and safety and stability of the system operation during the conveying process, and has good prospects for engineering applications. Utility Model Content

[0006] The purpose of this invention is to provide a biomass airlock sealing conveyor to solve the above-mentioned defects caused by the prior art.

[0007] A biomass airlock sealed conveyor includes a conveying cylinder, a conveying shaft, a water-cooled cylinder, a motor, and a reducer. The conveying cylinder is coaxially disposed inside the water-cooled cylinder, and has an inlet and an outlet at both ends. The conveying shaft is coaxially disposed inside the conveying cylinder, and has spiral conveying blades welded to its outer wall. A pair of sealing end caps are symmetrically connected to both ends of the conveying cylinder and the water-cooled cylinder, and a connecting plate is connected to the outside of the sealing end caps. A pair of connecting shafts are symmetrically connected to both ends of the conveying shaft. The connecting shafts pass through the center of adjacent sealing end caps and are connected to the adjacent connecting plate through bearing seats. A fixing plate is connected to the outside of the upper sealing end cap. The motor is mounted on the fixing plate through a fixing seat. The reducer is connected between the output shaft of the motor and the upper connecting shaft through coupling one and coupling two.

[0008] Preferably, the outer diameter of the conveying blade gradually increases from the inlet to the outlet.

[0009] Preferably, spiral heat dissipation blades are welded to the outer wall of the conveying cylinder.

[0010] Preferably, a sealing gasket is installed at the connection between the sealing end cap and the conveying cylinder and the water cooling cylinder.

[0011] Preferably, a sealing sleeve is installed at the contact point between the sealing end cap and the connecting shaft.

[0012] Preferably, a water inlet connector is installed on the lower part of the lower sealing end cap, and a water outlet connector is installed on the upper part of the upper sealing end cap.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. Airlock sealing function

[0015] The outer diameter of the conveyor blades gradually increases, causing the material to form a buffer accumulation at the feed inlet. The material itself forms a sealing layer, effectively preventing external air from entering the pyrolysis device and ensuring the system's sealing performance and operational stability.

[0016] 2. High-efficiency cooling function

[0017] Spiral heat dissipation blades are welded to the outer wall of the conveying cylinder, which significantly increases the contact area with cooling water, improving heat exchange efficiency and overall cooling effect.

[0018] Cooling water enters and exits the water chamber through the inlet and outlet connectors on the upper and lower sealed end caps, completing an efficient circulating cooling process and ensuring stable material transport at a constant temperature.

[0019] 3. Structural sealing guarantee

[0020] A sealing gasket is installed at the connection between the sealing end cap and the conveying cylinder and water cooling cylinder to prevent cooling water leakage and improve the sealing reliability of the overall structure.

[0021] A sealing sleeve is installed at the contact point between the sealing end cap and the connecting shaft to prevent material leakage and the entry of external air, further enhancing the sealing reliability and operational safety of the equipment.

[0022] 4. Integrated Design

[0023] This conveyor integrates material conveying, airlock sealing, and water-cooled temperature control. It has a compact structure, is easy to install and maintain, and is suitable for processes such as biomass pyrolysis and gasification that have high requirements for sealing and temperature control. Attached Figure Description

[0024] Figure 1 This is a first-view structural diagram of the present invention.

[0025] Figure 2 This is a structural schematic diagram of the entire utility model from a second perspective.

[0026] Figure 3 This is a schematic cross-sectional view of the present invention.

[0027] Figure 4 This is a schematic diagram of the structure of the present invention in the form of a partial explosion.

[0028] Figure 5 This is a schematic diagram of the conveying cylinder and heat dissipation blades in this utility model.

[0029] Figure 6 This is a schematic diagram of the conveyor shaft and conveyor blades in this utility model.

[0030] in:

[0031] 10-Conveying cylinder; 10a-Inlet; 10b-Outlet; 11-Conveying shaft; 12-Conveying blades; 13-Heat dissipation blades; 14-Water cooling cylinder; 15-Sealing end cap; 16-Sealing gasket; 17-Water inlet connector; 18-Water outlet connector; 19-Connecting shaft; 20-Sealing sleeve; 21-Connecting plate; 22-Bearing seat; 23-Fixing plate; 24-Motor; 25-Fixing seat; 26-Reducer; 27-Coupling one; 28-Coupling two. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0033] like Figures 1 to 6As shown, a biomass airlock sealed conveyor includes a conveying cylinder 10, a conveying shaft 11, a water-cooled cylinder 14, a motor 24, and a reducer 26. The conveying cylinder 10 is coaxially disposed inside the water-cooled cylinder 14, and has an inlet 10a and an outlet 10b at both ends. The conveying shaft 11 is coaxially disposed inside the conveying cylinder 10, and spiral conveying blades 12 are welded to the outer wall of the conveying shaft 11. A pair of sealing end caps 15 are symmetrically connected to both ends of the conveying cylinder 10 and the water-cooled cylinder 14, and are sealed in a sealed manner. A connecting plate 21 is connected to the outer side of the end cap 15. A pair of connecting shafts 19 are symmetrically connected to both ends of the conveying shaft 11. The connecting shafts 19 pass through the center of the adjacent end cap 15 and are connected to the adjacent connecting plate 21 through the bearing seat 22. A fixing plate 23 is connected to the outer side of the upper end cap 15. The motor 24 is mounted on the fixing plate 23 through the fixing seat 25. The reducer 26 is connected between the output shaft of the motor 24 and the upper connecting shaft 19 through coupling 1 27 and coupling 28. After being driven by coupling 1 27, coupling 28 and reducer 26, the motor 24 drives the conveying blades 12 on the conveying shaft 11 to rotate synchronously, thereby continuously conveying the material from the inlet 10a to the outlet 10b. During the conveying process, the material in the conveying cylinder 10 is efficiently cooled by the water cavity formed by the conveying cylinder 10, the water cooling cylinder 14 and the end cap 15, ensuring that the material is conveyed stably under sealed and temperature-controlled conditions.

[0034] In this embodiment, the outer diameter of the conveying blade 12 gradually increases from the inlet 10a to the outlet 10b. This structural design helps the material to form a buffer accumulation at the inlet 10a, and the accumulated material itself forms a sealing layer, effectively preventing external air from entering the pyrolysis device, thereby improving the sealing performance and operational stability of the system.

[0035] In this embodiment, spiral heat dissipation blades 13 are welded to the outer wall of the conveying cylinder 10. The heat dissipation blades 13 can effectively increase the contact area between the conveying cylinder 10 and the cooling water, thereby significantly improving the heat exchange efficiency and overall cooling effect.

[0036] In this embodiment, a sealing gasket 16 is installed at the connection between the sealing end cap 15 and the conveying cylinder 10 and the water cooling cylinder 14. The sealing gasket 16 can increase the sealing performance of the water cavity formed by the conveying cylinder 10, the water cooling cylinder 14 and the sealing end cap 15, effectively prevent cooling water leakage and improve the sealing reliability of the overall structure.

[0037] In this embodiment, a sealing sleeve 20 is installed at the contact point between the sealing end cap 15 and the connecting shaft 19. The sealing sleeve 20 can seal the sealing performance between the end cap 15 and the connecting shaft 19, effectively preventing material leakage and the ingress of external air, and further enhancing the sealing reliability and operational safety of the equipment.

[0038] In this embodiment, a water inlet connector 17 is installed on the lower part of the lower sealing end cap 15, and a water outlet connector 18 is installed on the upper part of the upper sealing end cap 15. Cooling water enters the water cavity formed by the conveying cylinder 10, the water cooling cylinder 14, and the sealing end cap 15 through the water inlet connector 17, and after exchanging heat with the heated conveying cylinder 10, it is discharged through the water outlet connector 18, completing the circulating cooling process.

[0039] Working principle of a biomass airlock sealed conveyor:

[0040] Driven by the electric motor 24, power is transmitted to the connecting shaft 19 above via the reducer 26, coupling 27, and coupling 28, thereby driving the conveying shaft 11 and the spiral conveying blades 12 welded to its outer wall to rotate synchronously. After the material enters the conveying cylinder 10 through the feed inlet 10a, it is continuously conveyed along the conveying cylinder 10 towards the discharge outlet 10b under the spiral propulsion of the conveying blades 12.

[0041] During the conveying process, this equipment possesses the following core technical features and operational advantages:

[0042] 1. Airlock sealing function

[0043] The outer diameter of the conveying blade 12 gradually increases from the feed inlet 10a to the discharge outlet 10b, causing the material to form a buffer accumulation at the feed inlet. The accumulated material itself forms a sealing layer, effectively preventing external air from entering the pyrolysis device, achieving a good airlock sealing effect, and improving the stability and safety of the system operation.

[0044] 2. High-efficiency cooling function

[0045] The conveying cylinder 10 is nested inside the water-cooled cylinder 14. Spiral heat dissipation blades 13 are welded on its outer wall, which significantly increases the contact area with cooling water and improves heat exchange efficiency. Cooling water enters the water cavity formed by the conveying cylinder 10, the water-cooled cylinder 14 and the sealing end cover 15 through the upper water inlet connector 17 on the lower sealing end cover 15, and exchanges heat with the heated conveying cylinder 10. After absorbing heat, the cooling water is discharged through the upper water outlet connector 18 on the upper sealing end cover 15, completing the circulating cooling process and ensuring that the material inside the conveying cylinder is transported stably at a constant temperature.

[0046] 3. Structural sealing guarantee

[0047] A sealing gasket 16 is provided at the connection between the sealing end cover 15 and the conveying cylinder 10 and the water cooling cylinder 14 to effectively prevent cooling water leakage; a sealing sleeve 20 is installed between the sealing end cover 15 and the connecting shaft 19 to prevent material leakage and the entry of external air, further enhancing the sealing reliability of the whole machine.

[0048] In summary, this biomass airlock sealing conveyor integrates material conveying, airlock sealing, and water-cooled temperature control. It has advantages such as compact structure, excellent sealing performance, high cooling efficiency, and stable operation, and is particularly suitable for biomass pyrolysis, gasification, and other processes with high requirements for sealing and temperature control.

[0049] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A biomass airlock sealed conveyor, characterized in that, The system includes a conveying cylinder (10), a conveying shaft (11), a water-cooled cylinder (14), a motor (24), and a reducer (26). The conveying cylinder (10) is coaxially disposed inside the water-cooled cylinder (14), and has an inlet (10a) and an outlet (10b) at both ends. The conveying shaft (11) is coaxially disposed inside the conveying cylinder (10), and has spiral conveying blades (12) welded to its outer wall. A pair of sealing end caps (15) are symmetrically connected to both ends of the conveying cylinder (10) and the water-cooled cylinder (14), and are located on the outside of the sealing end caps (15). A connecting plate (21) is connected to the side. A pair of connecting shafts (19) are symmetrically connected to both ends of the conveying shaft (11). The connecting shaft (19) passes through the center of the adjacent sealing end cover (15) and is connected to the adjacent connecting plate (21) through the bearing seat (22). A fixing plate (23) is connected to the outer side of the upper sealing end cover (15). The motor (24) is installed on the fixing plate (23) through the fixing seat (25). The reducer (26) is connected between the output shaft of the motor (24) and the upper connecting shaft (19) through coupling one (27) and coupling two (28).

2. The biomass airlock sealed conveyor according to claim 1, characterized in that, The outer diameter of the conveying blade (12) gradually increases from the inlet (10a) to the outlet (10b).

3. A biomass airlock sealed conveyor according to claim 1, characterized in that, Spiral heat dissipation blades (13) are welded to the outer wall of the conveying cylinder (10).

4. A biomass airlock sealed conveyor according to claim 1, characterized in that, A sealing gasket (16) is installed at the connection between the sealing end cap (15) and the conveying cylinder (10) and the water cooling cylinder (14).

5. A biomass airlock sealed conveyor according to claim 1, characterized in that, A sealing sleeve (20) is installed at the contact point between the sealing end cap (15) and the connecting shaft (19).

6. A biomass airlock sealed conveyor according to claim 1, characterized in that, A water inlet connector (17) is installed on the lower part of the lower sealing end cap (15), and a water outlet connector (18) is installed on the upper part of the upper sealing end cap (15).

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