A gradually-changing cross-section spiral compression biomass bulk material feeding device

Abstract

The utility model discloses a kind of gradually changing section spiral compression biomass bulk material feeding devices, it is related to the technical field of biomass boiler feeding, including conical screw conveyor, with feed pipe on side wall;Heating channel, set in the outlet end of conical screw conveyor;Guide tube, one side side wall is set on the heating channel on the end away from conical screw conveyor, and is communicated with heating channel;Lifting plate, liftable is set on the upper end wall of guide tube;Blade, fixedly connected on lifting plate, the blade and the inner side wall of guide tube sliding contact;Moving plate, movably set on the inner side wall of guide tube;Limiting column, fixedly connected on moving plate, the limiting column is directly opposite heating channel, the limiting column can extend into heating channel;The utility model has the advantages of convenient to use, can control the compactness of biomass fuel compression.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biomass boiler feed, especially relates to a gradually changed section screw compression biomass bulk material feed device. BACKGROUND

[0002] When the boiler is used, biomass can be used as fuel, and the biomass fuel is mainly composed of various crop straws; when the biomass fuel is fed, it needs to be fed by a screw conveyor, the biomass straw is compressed, and then heated through a heating channel, such as Figure 3 As shown in the figure, the biomass fuel is compressed by the screw conveyor and sent to the heating channel, the compression strength of the biomass fuel in the prior art is limited, and when the added biomass fuel is less, the compression strength is low, so the existing compression method is not easy to control the compression strength. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem that the compression strength of the biomass fuel is not easy to control in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a gradually changed section screw compression biomass bulk material feed device, which comprises

[0005] The conical screw conveyor has a feed pipe on the side wall;

[0006] The heating channel is arranged at the outlet end of the conical screw conveyor;

[0007] The guide cylinder is arranged on one side of the heating channel away from the conical screw conveyor and communicates with the heating channel;

[0008] The lifting plate is arranged on the upper end wall of the guide cylinder in a liftable manner;

[0009] The blade is fixedly connected to the lifting plate, and the blade is in sliding contact with the inner side wall of the guide cylinder;

[0010] The moving plate is movably arranged on the inner side wall of the guide cylinder;

[0011] The limiting column is fixedly connected to the moving plate, and the limiting column is opposite to the heating channel, and the limiting column can extend into the heating channel.

[0012] Preferably, the inner wall of the guide cylinder is provided with a U-shaped limiting plate, the blade slides through the limiting plate and forms a slide with the inner wall of the guide cylinder.

[0013] Preferably, the upper end wall of the material guiding cylinder is fixedly connected with a first hydraulic cylinder, and an output end of the first hydraulic cylinder is fixedly connected with the lifting plate.

[0014] Preferably, the center of the limiting column has a through hole penetrating through the limiting column, and an electric heating column is fixedly connected to the moving plate and penetrates through the through hole.

[0015] Preferably, a second hydraulic cylinder is arranged on the side wall of the material guiding cylinder, and an output end of the second hydraulic cylinder is fixedly connected with the moving plate.

[0016] The beneficial effects of the above technical solutions are:

[0017] The limiting column can enter the heating channel, and can limit the movement of the biomass fuel, while the conical screw conveyor can still push the biomass fuel to move, so that the biomass fuel is pressed more closely; the blades can cut the compact biomass fuel, so that the biomass fuel can flow out of the discharge port of the material guiding cylinder; the electric heating column can heat the inside of the biomass fuel, and cooperate with the heating channel to realize simultaneous heating inside and outside. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the gradually changing cross-section spiral compression biomass bulk material feeding device.

[0019] Figure 2 is a schematic view of the gradually changing cross-section spiral compression biomass bulk material feeding device.

[0020] Figure 3 is the existing conical screw conveyor.

[0021] Wherein: the conical screw conveyor 10, the feeding pipe 11, the heating channel 20, the material guiding cylinder 30, the discharge port 31, the blade 40, the limiting plate 41, the lifting plate 42, the first hydraulic cylinder 43, the limiting column 50, the through hole 51, the moving plate 60, the second hydraulic cylinder 61, the electric heating column 70. DETAILED DESCRIPTION

[0022] The embodiment of the present application will be described in detail below with reference to the drawings.

[0023] As Figures 1-2 In the present embodiment, a gradually changing cross-section spiral compression biomass bulk material feeding device comprises

[0024] The conical screw conveyor 10 has the feeding pipe 11 on the side wall;

[0025] The heating channel 20 is arranged at the outlet end of the conical screw conveyor 10;

[0026] The guide barrel 30 is provided on one side wall of the heating channel 20 and is away from one end of the tapered screw conveyor 10, and is communicated with the heating channel 20;

[0027] The lifting plate 42 is vertically arranged on the upper end wall of the guide barrel 30;

[0028] The blade 40 is fixedly connected to the lifting plate 42, and the blade 40 is in sliding contact with the inner wall of the guide barrel 30;

[0029] The moving plate 60 is movably arranged on the inner wall of the guide barrel 30;

[0030] The limiting column 50 is fixedly connected to the moving plate 60, and the limiting column 50 is opposite to the heating channel 20, and the limiting column 50 can extend into the heating channel 20.

[0031] The embodiment is implemented as follows:

[0032] In use, the moving plate 60 drives the limiting column 50 to move, so that the limiting column 50 can enter the heating channel 20, and the limiting column 50 can block the biomass fuel moving in the heating channel 20, so that the biomass fuel cannot continue to move, and the tapered screw conveyor 10 continues to compress the biomass fuel, so that the biomass fuel is extruded, and the biomass fuel is extruded more tightly, and the change of the conveying time of the screw conveyor 10 and the time when the limiting column 50 is located in the heating channel 20 can control the tightness of the biomass fuel.

[0033] Compared with the prior art, the biomass fuel can be compressed more tightly.

[0034] Please refer to Figure 1 , the inner wall of the guide barrel 30 is provided with a U-shaped limiting plate 41, and the blade 40 slides through the limiting plate 41 and forms a sliding groove with the inner wall of the guide barrel 30.

[0035] The limiting plate 41 and the sliding groove formed by the inner wall of the guide barrel 30 can be used for the sliding of the blade 40, so that the movement of the blade 40 is more stable.

[0036] Please refer to Figure 1 , 2 , the upper end wall of the guide barrel 30 is fixedly connected with a first hydraulic cylinder 43, and the output end of the first hydraulic cylinder 43 is fixedly connected with the lifting plate 42.

[0037] The first hydraulic cylinder 43 can drive the lifting plate 42 to move vertically.

[0038] Please refer to Figure 1The center of the limiting column 50 has a through hole 51 penetrating through the limiting column 50, and the moving plate 60 is fixedly connected with an electric heating column 70 penetrating through the through hole 51.

[0039] The electric heating column 70 penetrating through the through hole 51 of the limiting column 50 can heat the inside of the biomass fuel.

[0040] Please refer to Figure 1 , 2 The sidewall of the material guiding barrel 30 is provided with a second hydraulic cylinder 61, and the output end of the second hydraulic cylinder 61 is fixedly connected with the moving plate 60.

[0041] The second hydraulic cylinder 61 can drive the moving plate 60 to move.

[0042] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the creative concept of the present application, a number of variations and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A gradually changing cross-section spiral compression biomass bulk feeder, characterized in that, Comprising A conical screw conveyor, which has a feeding pipe on the side wall; A heating channel, which is arranged at the outlet end of the conical screw conveyor; A material guiding cylinder, which is arranged on one side of the side wall of the heating channel away from the conical screw conveyor and communicates with the heating channel; A lifting plate, which is arranged on the upper end wall of the material guiding cylinder in a liftable manner; A blade, which is fixedly connected to the lifting plate and is in sliding contact with the inner side wall of the material guiding cylinder; A moving plate, which is arranged on the inner side wall of the material guiding cylinder in a movable manner; A limiting column, which is fixedly connected to the moving plate and is opposite to the heating channel, and can extend into the heating channel.

2. A tapered cross-section helical compression biomass bulk solids feeding device according to claim 1, characterized in that, The inner wall of the material guiding cylinder is provided with a U-shaped limiting plate, and the blade slides through the limiting plate and forms a slide with the inner wall of the material guiding cylinder.

3. A tapered cross-section helical compression biomass bulk solids feeding device according to claim 1, wherein, The upper end wall of the material guiding cylinder is fixedly connected with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is fixedly connected with the lifting plate.

4. A tapered cross-section helical compression biomass bulk solids feeding device according to claim 1, wherein, The center of the limiting column has a through hole penetrating through the limiting column, and the moving plate is fixedly connected with an electric heating column, and the electric heating column penetrates through the through hole.

5. A tapered cross-section helical compression biomass bulk solids feeding device according to claim 1, wherein, The side wall of the material guiding cylinder is provided with a second hydraulic cylinder, and the output end of the second hydraulic cylinder is fixedly connected with the moving plate.

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