Anti-clogging screw conveyor for biomass pellet fuel processing

Abstract

This utility model discloses an anti-clogging screw conveyor for biomass pellet fuel processing, including a mounting base. A rotating base is bolted to the top of the mounting base. A conveying sleeve is rotatably connected to the inner wall of the rotating base. The conveying sleeve contains a conveying mechanism, which includes a servo motor, a variable pitch screw conveyor, a feed hopper, and a discharge pipe. A blowing mechanism is located on the outer side of the conveying sleeve, and a water injection mechanism is located at the bottom of the conveying sleeve. The conveying mechanism, with its variable pitch screw conveyor and conveying sleeve working together, transports biomass pellet fuel. The conveying mechanism employs a gradually changing pitch structure; the larger pitch in the feed section accelerates material transport, while the smaller pitch in the discharge section enhances anti-clogging capabilities. The blowing and water injection mechanisms work together to thoroughly clean the conveying mechanism, achieving uninterrupted cleaning and ensuring continuous conveyor operation, thus improving the efficiency of biomass pellet fuel transportation.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet fuel processing technology, and in particular to an anti-clogging screw conveyor for biomass pellet fuel processing. Background Technology

[0002] Biomass pellet fuel is essentially the direct combustion of biomass energy, representing the processing and utilization of biomass. Direct combustion methods can be categorized into four types: stove combustion, boiler combustion, waste combustion, and solid fuel combustion. Among these, solid fuel combustion is a newly promoted technology. It involves solidifying biomass into pellets and then burning them using traditional coal-fired equipment. Its advantages include fully utilizing biomass energy to replace coal, reducing CO2 and SO2 emissions, which is beneficial for environmental protection and controlling greenhouse gas emissions, mitigating climate change, and reducing the occurrence of natural disasters. The processing of biomass pellet fuel requires transportation, typically using screw conveyors.

[0003] The existing screw conveyor has the following problems compared with the existing technology: When transporting biomass pellets with high moisture content, the existing screw conveyor is prone to clumping and blockage, which requires the machine to be stopped and the blockage to be cleaned manually. This affects the continuity of the conveyor operation, resulting in low efficiency of biomass pellet fuel transportation and poor practicality of the conveyor. To address these problems, we have proposed an anti-clogging screw conveyor for biomass pellet fuel processing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-clogging screw conveyor for biomass pellet fuel processing.

[0005] The present invention solves its technical problem through the following technical solution: It includes a mounting base, the top of which is bolted to a rotating base. A conveying sleeve is rotatably connected to the inner wall of the rotating base. A conveying mechanism is provided inside the conveying sleeve. The conveying mechanism includes a servo motor, which is bolted to one end of the conveying sleeve. A variable pitch spiral conveying rod is provided at the output end of the servo motor. A feed hopper is fixed to the top of the conveying sleeve, and a discharge pipe is fixed to the top of the conveying sleeve. A blowing mechanism is provided on the outer side of the conveying sleeve, a water injection mechanism is provided at the bottom of the conveying sleeve, and a draining mechanism is provided at the end of the conveying sleeve.

[0006] As a further improvement of this utility model, a control panel is provided on one side of the mounting base.

[0007] As a further improvement of this utility model: the side wall of the material conveying sleeve is fixed with a support frame by bolts, and the support frame is fixedly connected to the mounting base.

[0008] As a further embodiment of this utility model: the blowing mechanism includes an air pump mounting base, which is fixed to the outside of the material conveying sleeve by bolts. A high-pressure air pump is fixed to the top of the air pump mounting base by bolts. An air supply pipe is fixed to one side of the high-pressure air pump. An air collection groove is fixed to one end of the air supply pipe. Multiple air jet holes are provided at the bottom of the air collection groove.

[0009] As a further embodiment of this utility model: the water injection mechanism includes a water pump mounting bracket, which is fixed to the bottom of the material conveying sleeve by bolts. A water pump is fixed to the inner wall of the water pump mounting bracket, a water pumping pipe is fixed to the bottom of the water pump, and a water injection pipe is fixed to one side of the water pump.

[0010] As a further improvement of this utility model: a fastening buckle is provided on the outside of the water injection pipe, and the fastening buckle is fixedly connected to the material conveying sleeve.

[0011] As a further embodiment of this utility model: the discharge mechanism includes an installation pipe, which is fixed to the bottom of the conveying sleeve by bolts, a control valve is fixed to the bottom of the installation pipe, and a discharge pipe is fixed to the bottom of the control valve.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. It is equipped with a material conveying mechanism. The variable pitch screw conveyor and the material conveying sleeve work together to transport biomass pellet fuel. The variable pitch screw conveyor adopts a gradually changing pitch structure. The pitch of the feeding section is larger, which can accelerate the material conveying. The pitch of the discharge section is smaller, which can enhance the extrusion and anti-clogging ability. 2. When cleaning of the conveying mechanism is required, high-pressure gas is sprayed onto the variable pitch screw conveyor rod through the blowing mechanism to clean the material adhering to the rod. Water is injected into the inside of the conveying sleeve through the water injection mechanism. At this time, the servo motor drives the variable pitch screw conveyor rod to reciprocate in both directions, and the water flows up and down inside the conveying sleeve to clean the sleeve and the screw conveyor rod. The wastewater generated after cleaning is discharged through the drainage mechanism. The blowing mechanism and the water injection mechanism work together to clean the conveying mechanism in all directions, achieving uninterrupted cleaning and ensuring the continuity of the conveyor operation. This improves the efficiency of biomass pellet fuel transportation and thus enhances the practicality of the conveyor. 3. By setting fastening clips to secure the water injection pipe, the stability of the water injection operation is ensured. Attached Figure Description

[0013] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown; Figure 2A schematic diagram of an isometric sectional view of a structure according to an embodiment of the present invention is shown; Figure 3 The present invention provides an embodiment of the present invention. Figure 2 Enlarged structural diagram of part A in the middle; Figure 4 The present invention provides an embodiment of the present invention. Figure 2 Enlarged structural diagram of section B in the middle; Figure 5 A schematic diagram of a variable pitch screw conveyor structure according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the water injection mechanism provided according to an embodiment of the present invention is shown.

[0014] Legend: 100 Mounting base, 110 Control panel, 120 Rotating base, 130 Feeding sleeve, 140 Support frame, 210 Servo motor, 220 Variable pitch screw conveyor, 230 Feed hopper, 240 Discharge pipe, 310 Air pump mounting base, 320 High-pressure air pump, 321 Air supply pipe, 330 Air collection trough, 340 Air jet hole, 410 Water pump mounting bracket, 420 Water pump, 421 Water suction pipe, 430 Water injection pipe, 440 Fastening buckle, 510 Mounting pipe, 520 Control valve, 530 Drain pipe. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-6 This utility model provides a technical solution: It includes a mounting base 100, a control panel 110 on one side of the mounting base 100, a rotating base 120 fixed to the top of the mounting base 100 by bolts, a conveying sleeve 130 rotatably connected to the inner wall of the rotating base 120, a conveying mechanism inside the conveying sleeve 130, the conveying mechanism including a servo motor 210, a variable pitch screw conveyor 220, and a feed hopper 230, a discharge pipe 240 fixed to the top of the conveying sleeve 130, a blowing mechanism on the outer side of the conveying sleeve 130, a water injection mechanism at the bottom of the conveying sleeve 130, and a discharge mechanism at the end of the conveying sleeve 130; the conveying mechanism, the variable pitch screw conveyor 220, and the conveying sleeve 130 cooperate to transport biomass pellet fuel, the variable pitch screw conveyor 220 adopting a gradually changing screw... The conveyor has a larger pitch in the feeding section, which accelerates material conveying, while the smaller pitch in the discharge section enhances its anti-clogging capabilities. When cleaning is required, a high-pressure gas jet is sprayed onto the variable-pitch screw conveyor 220 via a spraying mechanism to remove material adhering to it. Water is injected into the conveying sleeve 130 via a water injection mechanism. Simultaneously, the servo motor 210 drives the variable-pitch screw conveyor 220 in both forward and reverse directions, causing water to flow up and down inside the conveying sleeve 130, cleaning both the sleeve and the screw conveyor 220. Wastewater generated after cleaning is discharged through a draining mechanism. The combined spraying and water injection mechanisms enable comprehensive cleaning of the conveying mechanism, achieving uninterrupted cleaning and ensuring continuous operation of the conveyor. This improves the efficiency of biomass pellet fuel transportation and enhances the practicality of the conveyor.

[0019] Specifically, the side wall of the material conveying sleeve 130 is fixed with a support frame 140 by bolts, and the support frame 140 is fixedly connected to the mounting base 100; by setting the support frame 140, the material conveying sleeve 130 can be moved to a suitable angle, and the support frame 140 with the matching height can be selected to fasten and support the material conveying sleeve 130.

[0020] Specifically, the blowing mechanism includes an air pump mounting base 310, which is fixed to the outside of the conveying sleeve 130 by bolts. A high-pressure air pump 320 is fixed to the top of the air pump mounting base 310 by bolts. An air supply pipe 321 is fixed to one side of the high-pressure air pump 320. An air collection groove 330 is fixed to one end of the air supply pipe 321. A plurality of air jet holes 340 are provided at the bottom of the air collection groove 330. By providing the blowing mechanism, the material attached to the variable pitch screw conveyor rod 220 can be cleaned.

[0021] Specifically, the water injection mechanism includes a water pump mounting bracket 410, which is fixed to the bottom of the conveying sleeve 130 by bolts. A water pump 420 is fixed to the inner wall of the water pump mounting bracket 410, and a water suction pipe 421 is fixed to the bottom of the water pump 420. A water injection pipe 430 is fixed to one side of the water pump 420. Water is injected into the conveying sleeve 130 by the water injection mechanism. At this time, the servo motor 210 drives the variable pitch screw conveyor 220 to reciprocate in both forward and reverse directions. The water will flow up and down inside the conveying sleeve 130, which can clean the conveying sleeve 130 and the variable pitch screw conveyor 220. The material generated after cleaning is discharged through the discharge mechanism. With the help of the spray cleaning mechanism to clean the variable pitch screw conveyor 220 by air jet cleaning, the conveying mechanism can be cleaned in all directions, achieving uninterrupted cleaning.

[0022] Specifically, a fastening buckle 440 is provided on the outside of the water injection pipe 430, and the fastening buckle 440 is fixedly connected to the material conveying sleeve 130; by providing the fastening buckle 440 to fasten and support the water injection pipe 430, the stability of the water injection operation is ensured.

[0023] Specifically, the discharge mechanism includes an installation pipe 510, which is fixed to the bottom of the conveying sleeve 130 by bolts. A control valve 520 is fixed to the bottom of the installation pipe 510, and a discharge pipe 530 is fixed to the bottom of the control valve 520. After the material conveying mechanism is cleaned by the discharge mechanism, the control valve 520 is opened, and the cleaning wastewater is discharged through the installation pipe 510 and the discharge pipe 530.

[0024] Working Principle: During use, the conveyor is controlled via the control panel 110. The conveying sleeve 130 is moved to a suitable angle, and the height-matched support frame 140 is selected to securely support the conveying sleeve 130. Biomass pellet fuel is injected into the conveying sleeve 130 through the feed hopper 230. The servo motor 210 drives the variable pitch screw conveyor 220 to rotate. The variable pitch screw conveyor 220 and the conveying sleeve 130 work together to transport the biomass pellet fuel. The variable pitch screw conveyor 220 adopts a gradually changing pitch structure. The pitch is larger in the feeding section, which can accelerate material conveying, and the pitch is smaller in the discharge section, which can enhance the extrusion and anti-clogging ability. When it is necessary to clean the conveying mechanism, the high-pressure air pump 320 is started. The high-pressure air pump 320 injects high-pressure gas into the gas collection tank 330 through the air pipe 321. High-pressure gas is then sprayed onto the variable pitch screw conveyor 220 through multiple jet holes 340, which can clean the material adhering to the variable pitch screw conveyor 220. The water pump 420 is connected to the external water source and the water pump 420 is started. The water pump 420 injects water into the conveying sleeve 130 through the water injection pipe 430. At this time, the servo motor 210 drives the variable pitch screw conveyor 220 to reciprocate in both forward and reverse directions. The water will flow up and down inside the conveying sleeve 130, which can clean the conveying sleeve 130 and the variable pitch screw conveyor 220. With the jet cleaning of the variable pitch screw conveyor 220 by the spraying mechanism, the conveying mechanism can be cleaned in all directions, achieving uninterrupted cleaning. After the cleaning of the conveying mechanism is completed, the control valve 520 is opened, and the cleaning wastewater is discharged through the installation pipe 510 and the drain pipe 530.

[0025] Although the present invention discloses embodiments and accompanying drawings, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and accompanying drawings.

Claims

1. An anti-clogging screw conveyor for biomass pellet fuel processing, characterized in that, The system includes a mounting base (100), a rotating base (120) fixed to the top of the mounting base (100) by bolts, a conveying sleeve (130) rotatably connected to the inner wall of the rotating base (120), a conveying mechanism provided inside the conveying sleeve (130), the conveying mechanism including a servo motor (210), the servo motor (210) fixed to one end of the conveying sleeve (130) by bolts, a variable pitch spiral conveying rod (220) provided at the output end of the servo motor (210), a feed hopper (230) fixed to the top of the conveying sleeve (130), a discharge pipe (240) fixed to the top of the conveying sleeve (130), a blowing mechanism provided on the outside of the conveying sleeve (130), a water injection mechanism provided at the bottom of the conveying sleeve (130), and a draining mechanism provided at the end of the conveying sleeve (130).

2. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 1, characterized in that, A control panel (110) is provided on one side of the mounting base (100).

3. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 1, characterized in that, The side wall of the material conveying sleeve (130) is fixed with a support frame (140) by bolts, and the support frame (140) is fixedly connected to the mounting base (100).

4. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 1, characterized in that, The blowing mechanism includes an air pump mounting base (310), which is fixed to the outside of the material conveying sleeve (130) by bolts. A high-pressure air pump (320) is fixed to the top of the air pump mounting base (310) by bolts. An air supply pipe (321) is fixed to one side of the high-pressure air pump (320). An air collection groove (330) is fixed to one end of the air supply pipe (321). A plurality of air jet holes (340) are provided at the bottom of the air collection groove (330).

5. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 1, characterized in that, The water injection mechanism includes a water pump mounting bracket (410), which is fixed to the bottom of the material conveying sleeve (130) by bolts. A water pump (420) is fixed to the inner wall of the water pump mounting bracket (410), a water pump pipe (421) is fixed to the bottom of the water pump (420), and a water injection pipe (430) is fixed to one side of the water pump (420).

6. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 5, characterized in that, The water injection pipe (430) is provided with a fastening buckle (440) on the outside, and the fastening buckle (440) is fixedly connected to the material conveying sleeve (130).

7. The anti-clogging screw conveyor for biomass pellet fuel processing according to claim 1, characterized in that, The discharge mechanism includes an installation pipe (510), which is fixed to the bottom of the conveying sleeve (130) by bolts. A control valve (520) is fixed to the bottom of the installation pipe (510), and a discharge pipe (530) is fixed to the bottom of the control valve (520).

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