Feeding device of biomass gasifier

Abstract

The utility model discloses a feeding device of a biomass gasifier, which comprises a conveyor, a feeding device and a feeding device, a discharging opening in the bottom of the double-screw feeder is located above the starting end of the conveyor, and a dust suction hood is arranged on a feeding opening in the top of the double-screw feeder; the bag-type dust remover is arranged on one side of the double-screw feeder and located above the dust cover, a suction port of the bag-type dust remover is communicated with the dust hood through a dust suction pipeline, and a dust discharging pipeline of the bag-type dust remover extends into the dust cover through an insertion port in the dust cover. According to the device, the double-screw feeder is adopted for feeding, anti-blocking is achieved, uniform feeding is guaranteed, when materials are poured into a feeding port of the double-screw feeder, generated flying dust is collected by the dust suction hood, the flying dust in the dust suction hood is pumped out through the bag-type dust collector, and finally the flying dust is discharged into the conveyor located below the dust cover through the dust discharging pipeline, so that the feeding efficiency is improved. Flying dust is conveyed into the gasification furnace through the conveyor, so that manual dust discharge is not needed, and manual labor is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of biomass processing technology, and more specifically to a biomass gasification furnace feeding device. Background Technology

[0002] With the increasing demand for renewable energy, the development and utilization of biomass energy is receiving more and more attention. Before biomass undergoes processing and conversion (such as gasification, direct combustion, pellet production, etc.), it needs to be transported to the corresponding processing equipment through a feeding device, such as CN117757526A - a biomass raw material conveying system for a gasifier.

[0003] However, the feed hoppers of existing biomass feeding devices are prone to clogging, leading to uneven feeding; they also lack the function of removing impurities such as metals contained in biomass, resulting in poor biomass quality; in addition, baghouse dust collectors require manual removal of dust periodically, which wastes manpower. Utility Model Content

[0004] In view of this, the present invention provides a biomass gasification furnace feeding device to solve the above-mentioned technical problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A biomass gasification furnace feeding device includes:

[0007] The conveyor is equipped with a dust cover;

[0008] A twin-helix feeder, wherein the discharge port at the bottom of the twin-helix feeder is located above the beginning of the conveyor, and a dust suction hood is provided on the inlet at the top of the twin-helix feeder;

[0009] A bag filter dust collector is installed on one side of the twin-screw feeder and above the dust cover. The suction port of the bag filter dust collector is connected to the dust cover through a dust suction pipe, and the dust discharge pipe of the bag filter dust collector extends into the dust cover through an insertion port on the dust cover.

[0010] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a biomass gasification furnace feeding device, which adopts a double spiral feeder to achieve anti-clogging and ensure uniform feeding. Moreover, when the material is poured into the feed port of the double spiral feeder, the generated dust is collected by the negative pressure of the dust collection hood, and the dust is extracted from the dust collection hood by the bag dust collector. Finally, the dust is discharged into the conveyor located under the dust cover through the dust discharge pipe, and the dust is transported into the gasification furnace by the conveyor. Thus, there is no need for manual dust removal, which greatly reduces the labor force.

[0011] Furthermore, the twin-screw feeder is equipped with an iron remover inside.

[0012] The beneficial effects of adopting the above technical solution are: there are impurities such as iron in the biomass raw materials. The iron remover can adsorb the iron impurities in the biomass raw materials, thereby removing impurities and improving the quality of raw material feeding.

[0013] Furthermore, the twin-screw feeder includes:

[0014] A feeding hopper, wherein the bottom end of the feeding hopper is provided with the discharge port, the top end of the feeding hopper is provided with the inlet port, and the iron remover is fixed on at least one inner wall of the feeding hopper;

[0015] A first screw is disposed inside the feeding hopper, and one end of the first screw is fixedly connected to the output end of a first motor located outside the feeding hopper.

[0016] A second screw is disposed inside the feeding hopper, and one end of the second screw is fixedly connected to the output end of a second motor located outside the feeding hopper.

[0017] The beneficial effects of adopting the above technical solution are: the device uses twin screws to disperse and uniformly convey the material in the feed hopper, thereby achieving the effect of preventing material blockage and ensuring that the conveyor can feed the material uniformly and continuously.

[0018] Furthermore, an observation port is provided between one side of the bottom of the dust collection hood and the inlet of the feeding hopper.

[0019] The beneficial effects of adopting the above technical solution are: it facilitates the observation of the operation status of the twin-screw feeder through the observation port, and the machine can be stopped in time when problems occur.

[0020] Furthermore, the feed inlet of the feed hopper is connected to the bottom of the dust collection hood by bolts.

[0021] The beneficial effects of adopting the above technical solution are: it facilitates the rapid assembly and disassembly of both components, and is beneficial for transportation and on-site construction.

[0022] Furthermore, the iron separator includes:

[0023] A permanent magnet base is fixed on at least one inner wall of the feeding hopper;

[0024] A neodymium iron boron permanent magnet is installed in a mounting groove on the permanent magnet base.

[0025] The beneficial effects of adopting the above technical solution are: the neodymium iron boron permanent magnet can effectively adsorb impurities such as metals in biomass raw materials, thereby achieving the effect of impurity removal.

[0026] Furthermore, the neodymium iron boron permanent magnet is bonded and fixed within the mounting groove.

[0027] The beneficial effect of adopting the above technical solution is that it facilitates the assembly and disassembly of neodymium iron boron permanent magnets.

[0028] Furthermore, a dust discharge valve and a dust discharge motor are installed on the dust discharge pipe, and the dust discharge valve is driven by the dust discharge motor.

[0029] The beneficial effects of adopting the above technical solution are: when dust removal is required, the dust removal valve can be opened simply by driving the dust removal motor to achieve automatic dust removal of the bag filter, without the need for manual operation, thus saving manpower.

[0030] Furthermore, the bag filter is mounted above the dust cover via a bracket.

[0031] Furthermore, the conveyor is a belt conveyor or a plate chain conveyor, and the conveyor has a certain angle of inclination with the ground. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 This is a three-dimensional structural schematic diagram of the present invention with a sectional view;

[0035] Figure 3 This is a view of part A in this utility model;

[0036] Figure 4 This is a three-dimensional structural diagram of the double-spiral feeder of this utility model;

[0037] Figure 5 This is a three-dimensional structural diagram of the iron separator of this utility model. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figures 1-5 As shown, this utility model embodiment discloses a biomass gasification furnace feeding device, including:

[0040] Conveyor 4, which is equipped with a dust cover 41;

[0041] The double helix feeder 1 has a discharge port 16 at the bottom located above the beginning of the conveyor 4, which facilitates the biomass material to enter the conveying component of the conveyor 4 from the discharge port 16. A dust suction hood 2 is provided on the feed port at the top of the double helix feeder 1.

[0042] The bag filter 3 is located on one side of the twin screw feeder 1 and above the dust cover 41. The suction port of the bag filter 3 is connected to the dust hood 2 through the suction pipe 34. In this way, the biomass dust enters the bag filter 3 through the suction pipe 34. During operation, the dust hood 2 is under a slight negative pressure to prevent dust from overflowing. The dust discharge pipe 33 of the bag filter 3 extends into the dust cover 41 through the insertion port 42 on the dust cover 41, thus discharging the dust onto the conveyor and into the gasifier along with the material. There is no need for manual dust discharge, which reduces labor costs.

[0043] The twin-screw feeder 1 is equipped with an iron remover 17 inside.

[0044] The twin-screw feeder 1 includes:

[0045] The feed hopper 11 has a discharge port 16 at the bottom and a feed inlet at the top. At least one inner wall of the feed hopper 11 is fixed with an iron remover 17.

[0046] The first screw 14 is disposed inside the feeding hopper 11, and one end of the first screw 14 is fixedly connected to the output end of the first motor 12 located outside the feeding hopper 11.

[0047] The second screw 15 is disposed inside the feed hopper 11, and one end of the second screw 15 is fixedly connected to the output end of the second motor 13 located outside the feed hopper 11.

[0048] The two motors rotate in opposite directions, which drives the two screws to rotate in opposite directions, allowing for the smooth conveying of lumpy materials.

[0049] The size of the dust hood 2 is large enough to accommodate the loader bucket so that the biomass in the loader bucket can be unloaded into the feed hopper 11. The feed hopper 11 is large enough to accommodate more than two consecutive bucket unloadings. The upper space of the dust hood 2 is reduced in length so that dust can enter the dust collection pipe 34 more smoothly.

[0050] In one embodiment, the loader bucket has a width of 1.8m and a capacity of 0.8m³. 3 The dust cover 2 has a length of 2.2 to 2.5 meters, and the receiving hopper 11 has a volume of 1.6 to 2.5 cubic meters. 3 .

[0051] The feed inlet of the feed hopper 11 is connected to the bottom of the dust hood 2 by bolts, which facilitates installation and disassembly.

[0052] The length of the twin-helix feeder 1 is greater than the length of the dust hood 2. After the twin-helix feeder 1 and the dust hood 2 are bolted together, due to the difference in length, an observation hole 5 is formed at the feed inlet of the twin-helix feeder, which is convenient for observing the biomass feeding situation, can detect problems in time, and improve the reliability of feeding.

[0053] Iron separator 17 includes:

[0054] The permanent magnet base 172 is fixed on at least one inner wall of the feed hopper 11. If the permanent magnet base 172 is fixed on both inner walls of the feed hopper 11, the iron removal effect can be improved.

[0055] The neodymium iron boron permanent magnet 171 is installed in the mounting groove on the permanent magnet base 172.

[0056] The neodymium iron boron permanent magnet 171 is fixed in the mounting groove by strong adhesive.

[0057] The dust discharge pipe 33 is equipped with a dust discharge valve 31 and a dust discharge motor 32, and the dust discharge valve 31 is driven by the dust discharge motor 32.

[0058] The bag filter 3 is installed above the dust cover 41 via a bracket 35. The bracket 35 can be supported independently on the ground or shared with the conveyor 4.

[0059] Conveyor 4 is a belt conveyor or a plate chain conveyor, and conveyor 4 has a certain angle of inclination with the ground.

[0060] The advantages of this device are as follows:

[0061] 1. This utility model solves the problem of the inability to observe the feeding process of the feeder. Through the difference in length between the feeder and the dust hood, the observation hole formed after installation allows for a direct observation of the biomass feeding and discharge.

[0062] 2. This utility model solves the problem of unstable feeding process in biomass gasification furnace. The feeder is equipped with twin screws rotating in opposite directions, which can stably and orderly push the biomass raw materials into the conveyor.

[0063] 3. This utility model solves the problem of iron metal impurities in biomass raw materials. The screw feeder is equipped with an iron remover in the hopper, which can adsorb iron metal impurities in the biomass raw materials.

[0064] 4. This utility model solves the problem of excessive dust during the biomass feeding process. The double screw feeder is equipped with a dust collection hood, and the dust collection hood can operate under slight negative pressure through a bag filter, which prevents biomass dust from overflowing.

[0065] 5. This utility model solves the problem that biomass dust collected by bag pulse dust collectors needs to be manually unloaded. The dust discharge outlet of the bag dust collector is directly placed inside the conveyor, and the biomass dust is transported to the downstream gasifier through the conveyor, which saves manual operation, improves the reliability of feeding and operation, and saves biomass energy.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feeding device for a biomass gasification furnace, characterized in that, include: Conveyor (4), the conveyor (4) is provided with a dust cover (41); The double helix feeder (1) has a discharge port (16) at the bottom of the double helix feeder (1) located above the beginning of the conveyor (4), and a dust suction hood (2) is provided on the inlet at the top of the double helix feeder (1). A bag filter (3) is provided on one side of the twin screw feeder (1) and above the dust cover (41). The suction port of the bag filter (3) is connected to the dust cover (2) through the suction pipe (34). The dust discharge pipe (33) of the bag filter (3) extends into the dust cover (41) through the insertion port (42) on the dust cover (41).

2. The biomass gasification furnace feeding device according to claim 1, characterized in that, The twin-screw feeder (1) is equipped with an iron remover (17).

3. The biomass gasification furnace feeding device according to claim 2, characterized in that, The twin-helix feeder (1) includes: Feeding hopper (11), the bottom end of the feeding hopper (11) is provided with the discharge port (16), the top end of the feeding hopper (11) is provided with the inlet port, and the iron remover (17) is fixed on at least one side of the inner wall of the feeding hopper (11). A first screw (14) is disposed inside the feed hopper (11), and one end of the first screw (14) is fixedly connected to the output end of a first motor (12) located outside the feed hopper (11); A second screw (15) is disposed inside the feed hopper (11), and one end of the second screw (15) is fixedly connected to the output end of a second motor (13) located outside the feed hopper (11).

4. The biomass gasification furnace feeding device according to claim 3, characterized in that, The dust collection hood (2) has an observation port (5) between its bottom side and the feed inlet of the feed hopper (11).

5. A biomass gasification furnace feeding device according to claim 3, characterized in that, The feed inlet of the feed hopper (11) is connected to the bottom of the dust collection hood (2) by bolts.

6. The biomass gasification furnace feeding device according to claim 3, characterized in that, The iron separator (17) includes: A permanent magnet base (172) is fixed on at least one inner wall of the feeding hopper (11); A neodymium iron boron permanent magnet (171) is installed in a mounting groove on the permanent magnet base (172).

7. A biomass gasification furnace feeding device according to claim 6, characterized in that, The neodymium iron boron permanent magnet (171) is bonded and fixed in the mounting groove.

8. A biomass gasification furnace feeding device according to any one of claims 1-7, characterized in that, The dust discharge pipe (33) is equipped with a dust discharge valve (31) and a dust discharge motor (32), and the dust discharge valve (31) is driven by the dust discharge motor (32).

9. A biomass gasification furnace feeding device according to any one of claims 1-7, characterized in that, The bag filter (3) is mounted above the dust cover (41) via a bracket (35).

10. A biomass gasification furnace feeding device according to any one of claims 1-7, characterized in that, The conveyor (4) is a belt conveyor or a plate chain conveyor, and the conveyor (4) has a certain angle of inclination with the ground.

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