Bin type biomass raw material ladder conveying system

Abstract

The utility model relates to the technical field of conveying equipment, in particular to a bin body type biomass raw material ladder conveying system which comprises a storage bin body and a ladder conveying mechanism arranged at the bottom of the storage bin body, a discharging port is formed in the bottom of one side face of the storage bin body and connected with a spiral conveyor, and the top of the storage bin body is connected with a dust remover through a pipeline. The ladder conveying mechanism comprises a movable upper frame and a fixed lower frame which are arranged in an up-down stacked mode and connected with triangular module plates. A wear-resistant lining plate or a sliding rail, a telescopic element and a hoop are arranged between the movable upper frame and the fixed lower frame; according to the utility model, a back-and-forth pushing structure is utilized, the gravity of materials is fully utilized, and the materials are conveyed layer by layer in a manner similar to page-shaped stripping, so that the problems of non-uniformity, instability, blockage, frequent maintenance and high cost in the raw material conveying process of the existing conveyor are solved, and the problems that the existing production environment is open and the production cost is low are solved. And concentrated dust removal is not facilitated due to much dust.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a warehouse-type biomass raw material elevator conveying system. Background Art

[0002] At present, the biomass pellet equipment industry has no systematic and standardized conveying tools for powdered, strip-shaped, and flaky multi-fiber raw materials (including but not limited to wood, straw, grass bodies, industrial-derived waste, and rhizomes of other fiber plants and crops, etc.). All of them are based on the independent selection of more common traditional conveying machinery such as screw conveyors, scraper conveyors, and belt conveyors as the mainstream conveying methods by production enterprises. However, due to the complex characteristics of raw materials, in actual production, the above conveying equipment has many practical factors such as raw material agglomeration and arching in large-capacity silos, conveyor wear, high energy consumption and low efficiency, uneven conveying, easy blockage and jamming, and difficult maintenance.

[0003] On the other hand, the raw materials in this industry are basically piled up in the open air at this stage, and the raw materials piled up in the open air are considered as dumped goods. First, the stacking density is small, which requires a large amount of site space. Second, it will cause a lot of dust, which will affect the air quality and cause environmental pollution, and there is a risk of dust explosion. Carrying out production operations in a large and empty workshop does not require manufacturers to achieve overall dust removal in the large workshop from the perspective of actual production and economic benefits.

[0004] In order to meet the production needs of the biomass pellet industry and realize the stable, uniform and efficient transportation of the raw materials mentioned above, especially to adapt to the large-volume raw material storage bin, realize the stable bottom out-of-bin feeding, and save motor power and reduce maintenance frequency, while taking into account the environmental impact of raw material stacking, it is necessary to provide a new type of conveying system. Utility Model Content

[0005] The utility model aims to provide a bin-type biomass raw material elevator conveying system to solve the problems of unevenness and instability, machine jamming, high maintenance frequency and high cost of existing conveyors in raw material conveying.

[0006] In order to solve the above technical problems, the solution adopted by the utility model is:

[0007] A silo-type biomass raw material elevator system comprises a storage silo and an elevator mechanism arranged at the bottom thereof, a discharge port is opened at the bottom of one side of the storage silo and connected to a screw conveyor, and the top of the storage silo is connected to a dust collector through a pipeline;

[0008] The elevator conveying mechanism comprises a movable upper frame and a fixed lower frame which are stacked up and down, and both are connected with a triangular module plate;

[0009] The movable upper frame and the fixed lower frame are provided with:

[0010] Wear-resistant lining plates or slide rails are used to support the movable upper frame to move horizontally on the fixed lower frame;

[0011] A telescopic element, the telescopic element comprising a cylinder and a telescopic rod, the cylinder being connected to a fixed lower frame, and the telescopic rod being connected to a movable upper frame;

[0012] The clamp is used to limit the linear reciprocating motion of the movable upper frame.

[0013] Furthermore, the fixed lower frame is formed by splicing rectangular tubes, a steel plate is welded on the upper surface, and a triangular module plate folded at a fixed angle is welded on the surface of the steel plate. The movable upper frame includes a rectangular tube with a triangular module plate welded on the side, and the triangular module plate includes a connected vertical surface and an inclined surface, and the vertical surface faces the screw conveyor.

[0014] Furthermore, the telescopic element is one of a hydraulic telescopic rod, a pneumatic telescopic rod and an electric telescopic rod, and a protective cover shell is arranged on the telescopic element.

[0015] Furthermore, the clamp is fixed to the fixed lower frame, and the rectangular tube in the movable upper frame is movably arranged in a cavity surrounded by the clamp and the fixed lower frame.

[0016] Furthermore, the movable upper frame has one end close to the screw conveyor as its moving front end, and a travel switch is arranged at its moving rear end.

[0017] Furthermore, the dust collector is a bag dust collector.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. By using the back-and-forth pushing structure and making full use of the material's own gravity, the material is sent away layer by layer in a manner similar to sheet peeling, solving the problems of unevenness, instability, machine jamming, frequent maintenance and high cost in the existing conveyor in raw material transportation.

[0020] 2. Solve the problem that the existing production environment is open and dusty, which is not conducive to centralized dust removal.

[0021] 3. Solve the problem of insufficient space utilization of existing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0023] Figure 2 It is a side view structural schematic diagram of the utility model;

[0024] Figure 3A schematic diagram of the position of the elevator conveying mechanism in the storage bin;

[0025] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0026] Figure 5 Schematic diagram of the structure of the elevator conveying mechanism from a top view;

[0027] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0028] Figure 7 It is a structural schematic diagram of the clamp;

[0029] Figure 8 It is a structural schematic diagram of the upper triangular module plate of the movable upper frame.

[0030] In the figure: 1. storage bin; 2. elevator mechanism; 2a. movable upper frame; 2b. fixed lower frame; 2c. triangular module plate; 2c-1. vertical surface; 2c-2. inclined surface; 2d. telescopic element; 2e. clamp; 2f. protective cover shell; 2g. travel switch; 3. screw conveyor; 4. dust collector. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] like Figures 1 to 8 As shown, a silo-type biomass raw material elevator system includes a storage silo 1 and an elevator mechanism 2 arranged at the bottom thereof. The storage silo 1 is welded by a standard container or steel plate without a top. It requires that the side and the bottom are perpendicular or the inclination angle is not greater than 30°. The containers can be stacked up in layers to increase the volume. The steel plate welded silo requires the welds to be sealed and welded on both sides. The length, width and height can be set according to needs, but a reinforcing rib structure must be provided. A discharge port is provided at the bottom of one side of the storage silo 1 and is connected to a screw conveyor 3. The top of the storage silo 1 is capped and connected to a dust collector 4 through a pipeline to collect dust in the silo; the elevator mechanism 2 includes a movable upper frame 2a and a fixed lower frame 2b stacked up and down, both of which are connected to a triangular module plate 2.

[0033] Specifically, between the movable upper frame 2a and the fixed lower frame 2b are provided:

[0034] Wear-resistant lining plates or slide rails are used to support the movable upper frame 2a to move horizontally on the fixed lower frame 2b to reduce friction resistance;

[0035] The telescopic element 2d comprises a cylinder and a telescopic rod, wherein the cylinder is connected to the fixed lower frame 2b, and the telescopic rod is connected to the movable upper frame 2a;

[0036] The clamp 2e is used to limit the movable upper frame 2a so that it can only perform a straight reciprocating motion forward and backward.

[0037] The fixed lower frame 2b is formed by splicing rectangular tubes, and a steel plate is welded on the upper surface. A triangular module plate 2c folded at a fixed angle is welded on the surface of the steel plate. The movable upper frame 2a includes a rectangular tube with a triangular module plate 2c welded on the side. The triangular module plate 2c includes a connected vertical surface 2c-1 and an inclined surface 2c-2. The vertical surface 2c-1 faces the screw conveyor 3, and this surface is the material pushing action surface.

[0038] The telescopic element 2d is one of a hydraulic telescopic rod, a pneumatic telescopic rod and an electric telescopic rod, and is provided with a protective cover shell 2f to prevent materials from interfering with the operation of the telescopic element 2d.

[0039] The clamp 2e is fixed to the fixed lower frame 2b, and the rectangular tube in the movable upper frame 2a is movably arranged in a cavity surrounded by the clamp 2e and the fixed lower frame 2b.

[0040] The movable upper frame 2a has one end near the screw conveyor 3 as its moving front end, and a travel switch 2g is arranged at its moving rear end. The travel switch 2g is a position switch that can realize the on-off control of the circuit according to the travel position of the mechanical moving part. When the object moves to a certain position, the travel switch 2g is triggered, thereby changing the circuit state and realizing the functions of automatic stop, start, reverse or count of the equipment.

[0041] The dust collector 4 is a bag dust collector. The working principle of the bag dust collector is based on the filtering effect of fiber fabric. When the dust-containing gas enters the dust collector 4, the dust with large particles and high specific gravity settles down due to gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained on the surface of the filter bag.

[0042] During the conveying operation, due to the accumulation of a large amount of materials in the upper storage bin 1, its own weight presses the raw materials at the bottom to the triangular module plate 2c area between the movable upper frame 2a and the fixed lower frame 2b. When the movable upper frame 2a is driven to move forward by the telescopic element 2d, the materials are pushed to the discharge port to the screw conveyor 3 by the vertical surface 2c-1. When the movable upper frame 2a moves backward, the materials fall down under the action of their own gravity and the shear force of the triangular module plate 2c to supplement the materials pushed away at the original position, and then are pushed to the discharge port by the forward movement of the movable upper frame 2a, and so on. In the above process, after the movable upper frame 2a contacts the travel switch 2g, the travel switch 2g feeds back a signal to the control system of the telescopic element 2d, so that the movable upper frame 2a can reciprocate back and forth. If a hydraulic telescopic rod is used as the telescopic element 2d, the flow rate of the hydraulic oil can be controlled by the regulating valve group to control the speed of movement of the movable upper frame 2a, so as to adjust the conveying speed.

[0043] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, any changes, modifications or additions should fall within the protection scope of the utility model.

Claims

1. A silo-type biomass raw material elevator system, characterized in that: It comprises a storage bin (1) and a ladder conveying mechanism (2) arranged at the bottom thereof, a discharge port is opened at the bottom of one side of the storage bin (1) and is connected to a screw conveyor (3), and the top of the storage bin (1) is connected to a dust collector (4) via a pipeline; The elevator conveying mechanism (2) comprises a movable upper frame (2a) and a fixed lower frame (2b) which are arranged in a stacked manner, and both are connected to a triangular module plate (2c); Disposed between the movable upper frame (2a) and the fixed lower frame (2b) are: A wear-resistant lining plate or a slide rail, used to support the movable upper frame (2a) to move horizontally on the fixed lower frame (2b); A telescopic element (2d), the telescopic element (2d) comprising a cylinder and a telescopic rod, the cylinder being connected to the fixed lower frame (2b), and the telescopic rod being connected to the movable upper frame (2a); The clamp (2e) is used to limit the linear reciprocating motion of the movable upper frame (2a).

2. A silo-type biomass raw material elevator system according to claim 1, characterized in that: The fixed lower frame (2b) is formed by splicing rectangular tubes, with a steel plate welded on the upper surface, and a triangular module plate (2c) folded at a fixed angle is welded on the surface of the steel plate. The movable upper frame (2a) includes a rectangular tube with a triangular module plate (2c) welded on the side, and the triangular module plate (2c) includes a connected vertical surface (2c-1) and an inclined surface (2c-2), and the vertical surface (2c-1) faces the screw conveyor (3).

3. The silo-type biomass raw material elevator system according to claim 1, characterized in that: The telescopic element (2d) is one of a hydraulic telescopic rod, a pneumatic telescopic rod and an electric telescopic rod, and is provided with a protective cover shell (2f).

4. The silo-type biomass raw material elevator system according to claim 2, characterized in that: The clamp (2e) is fixed to the fixed lower frame (2b), and the rectangular tube in the movable upper frame (2a) is movably arranged in a cavity surrounded by the clamp (2e) and the fixed lower frame (2b).

5. The silo-type biomass raw material elevator system according to claim 4, characterized in that: The movable upper frame (2a) has one end close to the screw conveyor (3) as its moving front end, and a travel switch (2g) is arranged at its moving rear end.

6. The silo-type biomass raw material elevator system according to claim 1, characterized in that: The dust collector (4) is a bag dust collector.

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