Fuel dust fall conveying mechanism for biomass power plant

Abstract

The utility model relates to the technical field of conveying mechanisms, in particular to a fuel dust-falling conveying mechanism for a biomass power plant, which is used for absorbing and falling dust of biomass fuel in the delivery process and the conveying process of a conveying belt, so that comprehensive dust falling is realized, and the practicability is improved. Comprising a conveying belt and a feeding cylinder; the cylindrical screen is installed on the inner wall of the transfer cavity of the feeding cylinder in a surrounding mode, a gap is formed between the cylindrical screen and the inner wall of the feeding cylinder, a large number of air suction holes are formed in the side wall of the cylindrical screen, the bag-type dust collector is installed on the outer side of the feeding cylinder, the filter cloth bag is installed in the bag-type dust collector, and the fan is installed in the filter cloth bag. A fan is mounted at the top of the bag-type dust collector, an air inlet channel of the fan is communicated with the interior of the filter cloth bag, a dust falling opening is formed in the bottom of the bag-type dust collector, one end of an air suction pipe is communicated with a gap between the feeding cylinder and the cylindrical screen, and the other end of the air suction pipe is communicated with the bag-type dust collector.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of conveying mechanism, in particular to a kind of biomass power plant fuel dust reduction conveying mechanism. BACKGROUND

[0002] Biomass fuel is mostly rice hull, sawdust, corn cob, cottonseed hull and "three leftovers", which are directly used after being broken and pulverized. These biomass fuels will produce dust when being conveyed to biomass power plant due to vibration and biomass fuel breaking, so dust reduction treatment is needed during conveying. The prior art CN216245391U discloses a new conveying device for biomass pellet fuel sorting, which uses the cooperation of air flow negative pressure box and drainage cover to perform negative pressure air flow adsorption treatment on the dust generated by the pellet fuel on the conveyor belt, reduces the outward diffusion of dust, solves the problem of harm to respiratory tract caused by outward diffusion of dust, and the dust filter plate can reduce the entry of larger particles in dust into the air flow negative pressure box. Under the action of concave clamping block and telescopic assembly, the dust filter plate is convenient to replace.

[0003] Since the vibration received by biomass fuel when being fed to the conveyor belt is greater than that during conveying, more dust will be generated on the conveyor belt. However, the dust reduction mechanism of the above conveying device is installed on the conveyor belt, which can only absorb the dust generated by the biomass fuel conveyed on the conveyor belt, and cannot absorb the dust generated during the feeding of biomass fuel, resulting in reduced practicability. SUMMARY

[0004] To solve the above technical problems, the utility model provides a biomass power plant fuel dust reduction conveying mechanism, which can absorb the dust generated by biomass fuel during feeding to the conveyor belt and during conveying, achieve comprehensive dust reduction, and improve practicability.

[0005] The utility model discloses a biomass power plant fuel dust fall conveying mechanism, including the conveyer belt and the feeding cylinder, and the feeding cylinder is installed on the input of conveyer belt, still include the cylindrical screen, cloth bag dust catcher, filter cloth bag, fan and the suction pipe, and the inside of feeding cylinder is provided with the transfer chamber, and the upper end surface of feeding cylinder is provided with the feed port, and the lower end of feeding cylinder is provided with the discharge port, and the feed port and discharge port all are linked with the transfer chamber, and the discharge port is located above the input of conveyer belt, and the cylindrical screen is installed on the inner wall in the transfer chamber of feeding cylinder and surrounds, and the clearance is set up between the cylindrical screen and the inner wall of feeding cylinder, and a large number of air suction holes are set up on the lateral wall of cylindrical screen, and the cloth bag dust catcher is installed on the outside of feeding cylinder, and the filter cloth bag is installed in the cloth bag dust catcher, and the fan is installed on the top of cloth bag dust catcher, and the air intake of fan is communicated with the inside of filter cloth bag, and the bottom of cloth bag dust catcher is provided with the dust fall port, and one end of suction pipe is communicated with the clearance between feeding cylinder and cylindrical screen, and the other end of suction pipe is communicated with cloth bag dust catcher, when working, the biomass fuel is sent to the transfer chamber of feeding cylinder through the feed port of feeding cylinder, and after gathering in the transfer chamber, the biomass fuel is evenly put on the input of conveyer belt through the discharge port, and the conveyer belt runs and conveys the biomass fuel backward, and the fan starts and discharges the air in the filter cloth bag outward, makes the inside of cloth bag dust catcher produce negative pressure, makes the air in feeding cylinder carry dust and enter the clearance between cylindrical screen and feeding cylinder through a large number of air suction holes of cylindrical screen, then is sucked into cloth bag dust catcher through suction pipe, makes the dust of large particle fall and collect in the dust fall port of cloth bag dust catcher, and the dust of small particle is adsorbed on the outer wall of filter cloth bag, realizes the absorption dust fall of biomass fuel in the process of conveying to conveyer belt, and the dust generated on conveyer belt is sucked into the discharge port of feeding cylinder, thereby absorbs the dust fall of biomass fuel on conveyer belt, is favorable to realize the overall dust fall, improves practicality.

[0006] Preferably, further including the air inlet, and the upper end edge of the air inlet is closed with the inner wall of the feeding cylinder, and the air inlet is arranged between the lower end of the cylindrical screen and the inner wall of the feeding cylinder, by arranging the air inlet, the dust at the lower part of the transfer chamber of the feeding cylinder and the discharge port of the feeding cylinder can be absorbed through the air inlet, and the dust fall efficiency is improved.

[0007] Preferably, further including the shaft, the rotating roller, the driven wheel and the push plate, the bottom of the transfer chamber of the feeding cylinder is provided with the mounting groove, the shaft is rotatably installed in the mounting groove of the feeding cylinder, the rotating roller is concentrically installed in the middle part of the shaft, the shaft is located in the inside of the mounting groove, the driven wheel is concentrically installed on the outer end of the shaft, the driven wheel is in frictional contact with the conveyer belt, and a plurality of push plates are uniformly installed on the outer wall of the rotating roller; when the conveyer belt runs to convey the biomass fuel, the driven wheel is driven to rotate through friction, the driven wheel drives the rotating roller to rotate through the shaft, and the rotating roller drives the plurality of push plates to rotate, so that the plurality of push plates push the biomass fuel at the bottom of the transfer chamber of the feeding cylinder, improve the smoothness of conveying the biomass fuel to the conveyer belt, and facilitate the dust absorption and dust fall in the transfer chamber of the feeding cylinder, and the practicality is good.

[0008] Preferably, the guide plate is installed on the bottom wall of the middle transfer chamber of the feeding cylinder, is located in front of the mounting groove of the feeding cylinder, and shields the front half of the mounting groove.

[0009] Preferably, the ear plate, the second rotating shaft and the cover plate are further included, the ear plate is installed above the discharge port of the feeding cylinder, the second rotating shaft is rotatably installed on the ear plate, and the upper end of the cover plate is connected with the second rotating shaft and the cover plate shields the discharge port of the feeding cylinder.

[0010] Preferably, the reducer and the driving motor are further included, the reducer is installed on the feeding cylinder, the output shaft of the reducer is in transmission connection with the second rotating shaft, the driving motor is installed on the reducer, and the output shaft of the driving motor is in transmission connection with the input shaft of the reducer.

[0011] Preferably, the water pipe and the plurality of spray heads are further included, the water pipe is installed in the bag-type dust collector, the plurality of spray heads are installed on the water pipe, and the plurality of spray heads are located below the filter bag.

[0012] Compared with the prior art, the biomass fuel in the conveying process of the conveying belt can be absorbed and dusted, and the dust generated on the conveying belt is sucked into the discharge port of the feeding cylinder, so that the biomass fuel on the conveying belt is absorbed and dusted, which is conducive to realizing comprehensive dust reduction and improving practicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is an axonometric structural schematic view of the utility model;

[0015] Figure 3 is a front sectional structural schematic view of the utility model;

[0016] Figure 4 is a side sectional structural schematic view of the utility model;

[0017] Figure 5 It is a structural diagram showing the disassembled state of the feeding cylinder, cylindrical screen, rotating roller, driven wheel, actuating plate, rotating shaft, cover plate, reducer and drive motor.

[0018] The following are labels in the attached diagram: 1. Conveyor belt; 2. Feeding cylinder; 3. Cylindrical screen; 4. Bag dust collector; 5. Filter bag; 6. Fan; 7. Suction pipe; 8. Air inlet; 9. Rotating shaft; 10. Rotating roller; 11. Driven wheel; 12. Actuating plate; 13. Guide plate; 14. Ear plate; 15. Rotating shaft II; 16. Cover plate; 17. Reducer; 18. Drive motor; 19. Water pipe; 20. Spray head. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1

[0021] like Figures 1 to 5 As shown, a biomass power plant fuel dust suppression conveying mechanism includes a conveyor belt 1 and a feeding cylinder 2, with the feeding cylinder 2 installed at the input end of the conveyor belt 1. It also includes a cylindrical screen 3, a bag filter 4, filter bags 5, a fan 6, and a suction pipe 7. The feeding cylinder 2 has a transfer chamber inside, an inlet on its upper surface, and an outlet at its lower end. Both the inlet and outlet are connected to the transfer chamber, with the outlet located above the input end of the conveyor belt 1. The cylindrical screen 3 is installed around the inner wall of the transfer chamber of the feeding cylinder 2, with a gap between the cylindrical screen 3 and the inner wall of the feeding cylinder 2. Numerous suction holes are provided on the side wall of the cylindrical screen 3. The bag filter 4 is installed outside the feeding cylinder 2, with filter bags 5 installed inside. The fan 6 is installed on the top of the bag filter 4, with its inlet communicating with the inside of the filter bags 5. The bottom of the device is provided with a dust collection port. One end of the suction pipe 7 is connected to the gap between the feeding cylinder 2 and the cylindrical screen 3, and the other end of the suction pipe 7 is connected to the bag filter 4. It also includes an air inlet 8, the upper edge of which is closed to the inner wall of the feeding cylinder 2. An air inlet 8 is provided between the lower end of the cylindrical screen 3 and the inner wall of the feeding cylinder 2. It also includes an ear plate 14, a rotating shaft 15, and a cover plate 16. The ear plate 14 is installed above the discharge port of the feeding cylinder 2. The rotating shaft 15 is rotatably installed on the ear plate 14. The upper end of the cover plate 16 is connected to the rotating shaft 15 and the cover plate 16 blocks the discharge port of the feeding cylinder 2. It also includes a reducer 17 and a drive motor 18. The reducer 17 is installed on the feeding cylinder 2. The output shaft of the reducer 17 is connected to the rotating shaft 15. The drive motor 18 is installed on the reducer 17. The output shaft of the drive motor 18 is connected to the input shaft of the reducer 17.

[0022] When working, the biomass fuel is sent to the transfer chamber of the feeding cylinder 2 through the feeding port of the feeding cylinder 2, and after gathering in the transfer chamber, the biomass fuel is uniformly fed to the input end of the conveying belt 1 through the discharge port. The driving motor 18 drives the speed reducer 17 to rotate, the output shaft of the speed reducer 17 drives the second rotating shaft 15 to rotate, the second rotating shaft 15 drives the cover plate 16 to rotate around the second rotating shaft 15, and the size of the discharge port of the feeding cylinder 2 is automatically adjusted by the cover plate 16, so as to adjust the speed of the biomass fuel fed to the conveying belt 1 by the feeding cylinder 2.

[0023] The conveying belt 1 runs to convey the biomass fuel backward, the fan 6 starts to exhaust the air in the filter bag 5 to the outside, so that the inside of the bag dust collector 4 generates negative pressure, the air in the feeding cylinder 2 carries dust into the gap between the cylindrical sieve 3 and the feeding cylinder 2 through a large number of suction holes of the cylindrical sieve 3, and then is sucked into the bag dust collector 4 through the suction pipe 7, so that the large particles of dust fall to the dust collecting port of the bag dust collector 4, and the small particles of dust are adsorbed on the outer wall of the filter bag 5, realizing the absorption and dust reduction of the biomass fuel during the feeding process of the conveying belt 1, and the dust generated on the conveying belt 1 is sucked into the discharge port and the air inlet 8 of the feeding cylinder 2, so as to absorb and reduce the dust on the biomass fuel on the conveying belt 1, which is conducive to realizing comprehensive dust reduction.

[0024] Embodiment 2

[0025] As shown in Figure 1 , Figure 3 and Figure 5 , on the basis of embodiment 1, it further comprises a rotating shaft 9, a rotating roller 10, a driven wheel 11 and a pushing plate 12, the bottom of the transfer chamber of the feeding cylinder 2 is provided with a mounting groove, the rotating shaft 9 is rotatably installed in the mounting groove of the feeding cylinder 2, the rotating roller 10 is concentrically installed in the middle part of the rotating shaft 9, the rotating shaft 9 is located inside the mounting groove, the driven wheel 11 is concentrically installed on the outer end of the rotating shaft 9, the driven wheel 11 is in frictional contact with the conveying belt 1, and a plurality of pushing plates 12 are uniformly installed on the outer wall of the rotating roller 10; it further comprises a guide plate 13, the guide plate 13 is installed on the bottom wall of the transfer chamber of the feeding cylinder 2, the guide plate 13 is located on the front side of the mounting groove of the feeding cylinder 2, and the guide plate 13 shields the front half of the mounting groove.

[0026] When the conveying belt 1 conveys the biomass fuel, the driven wheel 11 is driven to rotate by friction, the driven wheel 11 drives the rotating roller 10 to rotate through the rotating shaft 9, the rotating roller 10 drives the plurality of poking plates 12 to rotate, so that the plurality of poking plates 12 poke the biomass fuel at the bottom of the middle transfer chamber of the feeding cylinder 2, the smoothness of conveying the biomass fuel to the conveying belt 1 is improved, and dust in the middle transfer chamber of the feeding cylinder 2 is effectively absorbed and reduced, the biomass fuel on the rotating roller 10 and the plurality of poking plates 12 is guided and shielded by the guide plate 13, and the biomass fuel is prevented from being stuck in the installation groove.

[0027] Embodiment 3

[0028] As shown in Figure 1 and Figure 4 based on the embodiment 1, the water pipe 19 and the plurality of spray heads 20 are further included, the water pipe 19 is installed in the interior of the bag-type dust collector 4, the plurality of spray heads 20 are installed on the water pipe 19, and the plurality of spray heads 20 are located below the filter cloth bag 5; the interior of the bag-type dust collector 4 is sprayed through the water pipe 19 and the plurality of spray heads 20, so that the dust in the bag-type dust collector 4 is wetted, the dust is formed into mud, the dust is conveniently recycled for granulation into biomass fuel particles again, and the recycling of the dust is realized.

[0029] As shown in Figures 1 to 5 the biomass power plant fuel dust reduction and conveying mechanism, when working, first, the biomass fuel is sent into the middle transfer chamber of the feeding cylinder 2 through the feeding opening of the feeding cylinder 2, the biomass fuel is uniformly fed onto the input end of the conveying belt 1 through the discharging opening after being gathered in the middle transfer chamber, then the conveying belt 1 conveys the biomass fuel backward, the driven wheel 11 is driven to rotate by friction, the driven wheel 11 drives the rotating roller 10 to rotate through the rotating shaft 9, the rotating roller 10 drives the plurality of poking plates 12 to rotate, so that the plurality of poking plates 12 poke the biomass fuel at the bottom of the middle transfer chamber of the feeding cylinder 2, the smoothness of conveying the biomass fuel to the conveying belt 1 is improved, then the fan 6 is started to discharge the air in the filter cloth bag 5 outward, so that the negative pressure is generated in the interior of the bag-type dust collector 4, the air in the feeding cylinder 2 carries the dust to enter the gap between the cylindrical screen 3 and the feeding cylinder 2 through the large number of air suction holes of the cylindrical screen 3, and then the air is sucked into the bag-type dust collector 4 through the air suction pipe 7, the interior of the bag-type dust collector 4 is sprayed through the water pipe 19 and the plurality of spray heads 20, so that the dust in the bag-type dust collector 4 is wetted, the dust is formed into mud and falls to the dust falling opening of the bag-type dust collector 4 for collection, the small-particle dust is adsorbed on the outer wall of the filter cloth bag 5, the dust reduction and absorption of the biomass fuel in the conveying process of the conveying belt 1 are realized, and finally the dust generated on the conveying belt 1 is sucked into the feeding cylinder 2 through the discharging opening and the air inlet 8 of the feeding cylinder 2, so that the dust reduction and absorption of the biomass fuel on the conveying belt 1 are realized.

[0030] The main function realized by the utility model is:

[0031] 1, the biomass fuel in the process of feeding and conveying belt 1 and conveying process is absorbed dust, realizes comprehensive dust fall, improves practicality;

[0032] 2, can adjust the biomass fuel feeding conveying speed;

[0033] 3, can efficiently recycle dust and reuse.

[0034] The installation mode, connection mode or setting mode of the biomass power plant fuel dust fall conveying mechanism are all common mechanical modes, as long as the beneficial effects can be achieved, the implementation can be carried out, the conveying belt 1, feeding cylinder 2, cloth bag dust collector 4, filter cloth bag 5, fan 6, shaft 9, rotating roller 10, driven wheel 11, ear plate 14, shaft two 15, speed reducer 17, driving motor 18, water pipe 19, spray head 20 of the biomass power plant fuel dust fall conveying mechanism of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the technical personnel in the field paying creative labor.

[0035] All the technical and scientific terms used in the present application have the same meaning as that understood by the technical personnel in the technical field of the utility model. The terms used in the specification of the utility model in the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0036] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A biomass power plant fuel dust conveying mechanism, comprising a conveying belt (1) and a feeding cylinder (2), the feeding cylinder (2) is installed on the input end of the conveying belt (1); characterized in that, It also includes a cylindrical screen (3), a bag dust collector (4), a filter cloth bag (5), a fan (6) and an air suction pipe (7), the inside of the feeding cylinder (2) is provided with a transfer chamber, the upper end surface of the feeding cylinder (2) is provided with a feeding port, the lower end of the feeding cylinder (2) is provided with a discharging port, the feeding port and the discharging port are communicated with the transfer chamber, the discharging port is located above the input end of the conveying belt (1), the cylindrical screen (3) is installed around the inner wall of the transfer chamber of the feeding cylinder (2), a gap is provided between the cylindrical screen (3) and the inner wall of the feeding cylinder (2), a large number of air suction holes are provided on the side wall of the cylindrical screen (3), the bag dust collector (4) is installed outside the feeding cylinder (2), the filter cloth bag (5) is installed inside the bag dust collector (4), the fan (6) is installed on the top of the bag dust collector (4), the air inlet of the fan (6) is communicated with the inside of the filter cloth bag (5), the bottom of the bag dust collector (4) is provided with a dust falling port, one end of the air suction pipe (7) is communicated with the gap between the feeding cylinder (2) and the cylindrical screen (3), the other end of the air suction pipe (7) is communicated with the bag dust collector (4).

2. A biomass power plant fuel dust fall delivery mechanism as described in claim 1, wherein, It also includes an air inlet (8), the upper end edge of the air inlet (8) is closed with the inner wall of the feeding cylinder (2), the lower end of the cylindrical screen (3) is provided with the air inlet (8) between the inner wall of the feeding cylinder (2).

3. A biomass power plant fuel dust fall delivery mechanism as described in claim 1, wherein, It also includes a rotating shaft (9), a rotating roller (10), a driven wheel (11) and a push plate (12), the bottom of the transfer chamber of the feeding cylinder (2) is provided with a mounting groove, the rotating shaft (9) is rotatably installed in the mounting groove of the feeding cylinder (2), the rotating roller (10) is concentrically installed in the middle part of the rotating shaft (9), the rotating shaft (9) is located inside the mounting groove, the driven wheel (11) is concentrically installed on the outer end of the rotating shaft (9), the driven wheel (11) is in frictional contact with the conveying belt (1), a plurality of push plates (12) are uniformly installed on the outer wall of the rotating roller (10) in a circle.

4. A biomass power plant fuel dust fall delivery mechanism as claimed in claim 3, wherein, It also includes a guide plate (13), the guide plate (13) is installed on the bottom wall of the transfer chamber of the feeding cylinder (2), the guide plate (13) is located in front of the mounting groove of the feeding cylinder (2), the guide plate (13) blocks the front half of the mounting groove.

5. A biomass power plant fuel dust fall delivery mechanism as described in claim 1 wherein, It also includes an ear plate (14), a second rotating shaft (15) and a cover plate (16), the ear plate (14) is installed above the discharging port of the feeding cylinder (2), the second rotating shaft (15) is rotatably installed on the ear plate (14), the upper end of the cover plate (16) is connected with the second rotating shaft (15), the cover plate (16) blocks the discharging port of the feeding cylinder (2).

6. A biomass power plant fuel dust fall delivery mechanism as in claim 5, wherein, It also includes a speed reducer (17) and a driving motor (18), the speed reducer (17) is installed on the feeding cylinder (2), the output shaft of the speed reducer (17) is in transmission connection with the second rotating shaft (15), the driving motor (18) is installed on the speed reducer (17), the output shaft of the driving motor (18) is in transmission connection with the input shaft of the speed reducer (17).

7. A biomass power plant fuel dust fall delivery mechanism as described in claim 1 wherein, It also includes a water pipe (19) and a plurality of spray heads (20), the water pipe (19) is installed inside the bag dust collector (4), a plurality of spray heads (20) are installed on the water pipe (19), the plurality of spray heads (20) are located below the filter cloth bag (5).

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