Furnace front cantilever feeding front shaft split structure

Abstract

The utility model discloses a furnace front cantilever feeding front shaft split structure which comprises a running track, cantilever feeding devices are movably arranged on the running track, the cantilever feeding devices are symmetrically arranged on the two sides of a containing bin, the cantilever feeding devices and the containing bin are arranged in a split mode, screw shafts are arranged in the cantilever feeding devices, and the screw shafts are arranged on the two sides of the containing bin. The discharging side of the spiral shaft extends into the containing bin, the suspended wall feeding device is divided into two sections, the front end is a driving device containing space, the rear end is a spiral shaft containing space and is used for conveying materials, the spiral shaft in the suspended wall feeding device is designed in an inclined mode, and the spiral shaft adds biomass briquette fuel into the conveyor from the upper portion; and under the pushing of the spiral blade, the material moves downwards along the inclination angle of the spiral shaft and is conveyed to the accommodating bin. According to the suspended wall feeding device, the spiral shaft in the suspended wall feeding device is designed in an inclined mode, fuel can naturally fall down in the direction of a hearth, the material accumulation condition is reduced, a trapezoidal material blocking structure is designed in the suspended wall feeding device, and clustered materials are prevented from rotating around the spiral shaft in situ.

Description

Technical Field

[0001] The utility model belongs to the technical field of biomass boiler cantilever feeding, and particularly relates to a split structure of the front shaft of a cantilever feeder in front of a furnace. Background Art

[0002] Biomass formed fuel is widely used in industrial, agricultural and other fields, and a screw conveyor is one of the commonly used conveying devices in the conveying process of biomass formed fuel.

[0003] The existing screw conveyor is arranged in an integral structure. Once the screw shaft of the two-end bearing support structure is wound with materials, the winding will become larger and larger, and it can only be cleaned manually, which is time-consuming and laborious and affects work efficiency.

[0004] The setting of the screw conveyor for taking materials from the silo is particularly important. At present, in the existing technology, the use of equal-diameter and equal-pitch blades will cause serious material accumulation at the outlet, resulting in extrusion of the end of the cantilever shaft. In the light case, the screw shaft is bent and deformed, and in the serious case, the root of the screw shaft is fractured.

[0005] In view of the above factors, a split structure of the front shaft of a cantilever feeder in front of a furnace is specially designed. The cantilever feeder is symmetrically and splitly movably arranged. The screw shaft in the cantilever feeder is inclined. The fuel will naturally fall towards the furnace direction, reducing the accumulation of materials. A trapezoidal material blocking structure is designed inside to prevent the agglomerated materials from rotating in place around the screw shaft. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a split structure of the front shaft of a cantilever feeder in front of a furnace to solve the problems put forward in the above background art.

[0007] The purpose of the utility model is realized by the following technical solutions: a split structure of the front shaft of a cantilever feeder in front of a furnace, including a running track, on which a cantilever feeder is movably arranged, and the cantilever feeder is symmetrically arranged on both sides of a receiving bin;

[0008] The cantilever feeder is splitly arranged with the receiving bin. A screw shaft is arranged in the cantilever feeder, and the discharging side of the screw shaft extends into the receiving bin;

[0009] The cantilever feeder is divided into two sections. The front end is a space for accommodating a driving device, and the rear end is a space for accommodating a screw shaft for conveying materials.

[0010] Further, the screw shaft in the cantilever feeder is inclined at an angle of 15 degrees. The screw shaft adds biomass formed fuel from above to the conveyor. After being pushed by the screw blades, it moves downward along the inclined angle of the screw shaft and is conveyed to the receiving bin.

[0011] Furthermore, the spiral shaft is of a cantilever shaft structure, with bearings fixed on the feeding side and the discharging side being suspended.

[0012] Furthermore, the spiral shaft is of a structure composed of spiral blades and a round tube. The spiral blades are of a variable pitch and variable diameter structure, and the pitch and diameter gradually increase along the material conveying direction.

[0013] Furthermore, two sets of spiral shafts are arranged inside the cantilever feeding device, and a material blocking structure is arranged between the spiral shafts.

[0014] Furthermore, the material blocking structure is a hollow trapezoidal material blocking structure, located between two relatively rotating spiral shafts.

[0015] Furthermore, the material blocking structure is a hollow triangular material blocking structure, located between two relatively rotating spiral shafts.

[0016] Furthermore, the spiral shaft on the suspended discharging side of the cantilever feeding device extends at least 30 - 50 centimeters into the receiving bin.

[0017] Furthermore, the receiving bin is connected to the inlet of the biomass boiler, and docking ports are arranged on both sides of the receiving bin for docking with the cantilever feeding device;

[0018] And the receiving bin is of a hollow structure, and an inclined material dumping plate is arranged inside it;

[0019] The width of the receiving bin is set to be the same as that of the cantilever feeding device.

[0020] Furthermore, the front end of the cantilever feeding device is a steel structure frame for fixing bearings to connect the coupling and the reduction motor, and the rear end is a trough structure arranged by the steel structure frame for accommodating the spiral shaft to convey materials.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] The cantilever feeding device of the present utility model adopts a symmetric split - type movable docking setting and can be disassembled and replaced. The spiral shaft inside the cantilever feeding device adopts an inclined design, so that the fuel will naturally fall towards the furnace direction, reducing the accumulation of materials. The internal trapezoidal material blocking structure is designed to prevent the agglomerated materials from rotating in place around the spiral shaft.

[0023] The cantilever feeding device of the present utility model is divided into two sections. The front end is a driving device accommodation space with a steel structure for bearing fixation, and the rear end is a spiral shaft accommodation space with an open or closed structure leaving a feeding port. A connecting flange is designed in the middle to facilitate the overhaul and maintenance of the spiral shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the cantilever feeding device of the present utility model;

[0025] Figure 2 is a schematic diagram of the baffle structure of the cantilever feeding device of the present utility model;

[0026] Figure 3 is a schematic diagram of the connection between the cantilever feeding device of the present utility model and the receiving bin;

[0027] Figure 4 is a schematic diagram of the baffle structure of the first cantilever feeding device of the present utility model;

[0028] Figure 5 is a schematic diagram of the baffle structure of the second cantilever feeding device of the present utility model. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0032] As Figures 1-5 shown, a split structure of the front shaft of the cantilever feeding device in front of the furnace includes an operating track 1, and a cantilever feeding device 2 is movably arranged on the operating track 1. The cantilever feeding device 2 is symmetrically arranged on both sides of a receiving bin 3;

[0033] The cantilever feeding device 2 and the receiving bin 3 are arranged in a split manner. A spiral shaft is arranged in the cantilever feeding device 2, and the discharge side of the spiral shaft extends into the receiving bin 3;

[0034] The cantilever feeding device 2 is divided into two sections, the front end is a driving device accommodating space, and the rear end is a screw shaft accommodating space for conveying materials.

[0035] The utility model adopts a structure arrangement in which the containing bin and the cantilever wall feeding device are connected (separable and detachable), which can facilitate feeding processing in a use state.

[0036] In order to facilitate material guiding and processing during use while reducing the occurrence of material accumulation, the screw shaft 6 in the cantilever feeding device 2 adopts an inclined design with an inclination angle of 15 degrees. The screw shaft 6 adds the biomass molding fuel into the conveyor from above, and after being pushed by the spiral blades, it moves downward along the inclination angle of the screw shaft 6 and is transported to the containing bin 3.

[0037] The utility model has the characteristics of simple structure, convenient maintenance, low energy consumption, etc. and is suitable for conveying shaped fuel of biomass boiler.

[0038] The utility model adopts a symmetrical cantilever feeding device, and the cantilever feeding device is connected to a running track in an active manner, wherein the running track is supported by a steel structure truss, the front end of the cantilever feeding device is a driving device accommodating space, and the rear end is a spiral shaft accommodating space, both of which are made of steel structures, and a driving wheel is arranged at the bottom of the cantilever feeding device to cooperate with the running track.

[0039] In order to facilitate the fuel to leave the screw shaft without any interference from other parts during use, and to effectively prevent the material from being entangled on the screw shaft, the screw shaft 6 is a cantilever shaft structure, with the feed side fixed by a bearing and the discharge side suspended.

[0040] In order to prevent the equal-diameter and equal-distance blades from causing serious accumulation of materials at the outlet and squeezing the end of the cantilever shaft during use, the spiral shaft 6 is a spiral blade plus a circular tube structure, and the spiral blade is a variable pitch and variable diameter structure, and the pitch and diameter gradually increase along the material conveying direction.

[0041] In order to prevent the lumped materials from spinning in place around the screw shaft and causing material accumulation and blockage by setting a material blocking structure during use, two sets of screw shafts 6 are arranged in the cantilever feeding device 2, and a material blocking structure is arranged between the screw shafts 6.

[0042] In order to prevent the lumped materials from spinning in place around the screw shaft and causing material accumulation and blockage by setting a material blocking structure in use, the material blocking structure is a hollow trapezoidal material blocking structure 7 located between the two relatively rotating screw shafts 6.

[0043] In order to facilitate avoiding the situation that the agglomerated materials rotate in place around the spiral shaft during use, resulting in material accumulation and blockage, the baffle structure is a hollow triangular baffle structure 7, which is located between two relatively rotating spiral 6 shafts.

[0044] In order to facilitate the situation that there is no material accumulation on the suspended side during use, at least 30-50 cm of the spiral shaft 6 on the discharging side of the cantilever feeding device 2 extends into the receiving bin 3.

[0045] The receiving bin 3 is connected to the inlet of the biomass boiler, and docking ports are provided on both sides of the receiving bin 3 for docking with the cantilever feeding device 2;

[0046] And the receiving bin 3 is a hollow structure, and an inclined blanking plate 8 is arranged inside it;

[0047] The width of the receiving bin 3 is set to be the same as the width of the cantilever feeding device 2.

[0048] The utility model adopts a symmetrical cantilever feeding device, and the movement mode of the cantilever feeding device is connected to the running track. During use, the cantilever feeding device is docked with the receiving bin 3 and fixed by bolts (removable for replacement). During use, the receiving bin is fixed by a steel structure (not shown in the figure).

[0049] Among them, the running track is supported by a steel structure truss. The front end of the cantilever feeding device is a driving device accommodation space, and the rear end is a spiral shaft accommodation space, both of which are made of steel structures. And driving wheels are arranged at the bottom of the cantilever feeding device to cooperate with the running track.

[0050] The front end of the cantilever feeding device 2 is a steel structure frame for bearing fixed connection with a coupling and a reduction motor, and the rear end is a trough structure arranged in the steel structure frame for accommodating the spiral shaft and used for conveying materials.

[0051] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A furnace front cantilever feeding front shaft split structure, characterized in that: It comprises a running track (1), on which a cantilever feeding device (2) is movably arranged, and the cantilever feeding device (2) is symmetrically arranged on both sides of a containing bin (3); The cantilever feeding device (2) and the containing bin (3) are arranged separately, a screw shaft is arranged in the cantilever feeding device (2), and the discharge side of the screw shaft extends into the containing bin (3); The cantilever feeding device (2) is divided into two sections, the front end is a driving device accommodation space, and the rear end is a screw shaft accommodation space for conveying materials.

2. The furnace front cantilever feeding front shaft split structure according to claim 1 is characterized in that: The spiral shaft (6) in the cantilever feeding device (2) adopts an inclined design with an inclination angle of 15 degrees. The spiral shaft (6) adds the biomass molding fuel into the conveyor from above, and after being pushed by the spiral blades, the biomass molding fuel moves downward along the inclination angle of the spiral shaft (6) and is transported to the storage bin (3).

3. The furnace front cantilever feeding front shaft split structure according to claim 2 is characterized in that: The spiral shaft (6) is a cantilever shaft structure, with a bearing fixed on the feed side and a discharge side suspended in the air.

4. The furnace front cantilever feeding front shaft split structure according to claim 3 is characterized by: The spiral shaft (6) is a spiral blade plus a circular tube structure, and the spiral blade is a variable pitch and variable diameter structure, and the pitch and diameter gradually increase along the material conveying direction.

5. The furnace front cantilever feeding front shaft split structure according to claim 4 is characterized in that: Two groups of screw shafts (6) are arranged in the cantilever feeding device (2), and a material blocking structure is arranged between the screw shafts (6).

6. The furnace front cantilever feeding front shaft split structure according to claim 5 is characterized in that: The material blocking structure is a hollow trapezoidal material blocking structure (7) and is located between two relatively rotating spiral shafts (6).

7. The furnace front cantilever feeding front shaft split structure according to claim 6 is characterized by: The material blocking structure is a hollow triangular material blocking structure (7) located between two relatively rotating spiral shafts (6).

8. The furnace front cantilever feeding front shaft split structure according to claim 7 is characterized in that: The suspended spiral shaft (6) on the discharge side of the cantilever feeding device (2) extends at least 30-50 centimeters to the containing bin (3).

9. The furnace front cantilever feeding front shaft split structure according to claim 8 is characterized in that: The containing bin (3) is connected to the inlet of the biomass boiler, and docking ports are provided on both sides of the containing bin (3) for docking with the cantilever feeding device (2); The containing bin (3) is a hollow structure and an inclined pouring plate (8) is arranged inside the hollow structure; The width of the containing bin (3) is set to be the same as the width of the cantilever feeding device (2).

10. The furnace front cantilever feeding front shaft split structure according to claim 9, characterized in that: The front end of the cantilever feeding device (2) is a steel structure frame for bearing fixed connection of a coupling and a reduction motor, and the rear end is a trough structure provided on the steel structure frame for accommodating a screw shaft for conveying materials.

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