Uniform distributing device for powdery materials

Abstract

The utility model discloses a uniform distributing device for powdery materials and belongs to the technical field of cement production. Comprising a bin body (3), a belt conveyor (2) is arranged at an upper port of the bin body (3), a material distributing cone (9) is arranged at the bottom in the bin body (3), a plurality of discharging pipes (8) are arranged on the lower portion of the bin body (3), upper ports of the discharging pipes (8) are communicated with the interior of the bin body (3), and the discharging pipes (8) are distributed on the periphery of the material distributing cone (9). A containing groove used for residual materials is formed between the inner side of each material storage ring (10) and the surface of the material distribution cone (9). According to the uniform distribution device for the powdery materials, the material storage ring is arranged on the surface of the material distribution cone, the materials can remain on the inner side of the material storage ring after falling down, a protection ring is formed on the surface of the material distribution cone, damage to the material distribution cone due to friction between the materials and the surface of the material distribution cone is effectively avoided, and the service life of the material distribution cone is prolonged.

Description

Technical Field

[0001] The invention discloses a uniform distribution device for powdery materials, belonging to the technical field of cement production. Background Art

[0002] In the field of cement production, several different types of bulk materials are used. During the bulk material transportation process, the bulk materials are generally stored in silos in advance and then supplied to subsequent processes through the discharge port at the bottom of the silo. In the prior art, a uniform distribution device is generally provided at the bottom of the silo to distribute the bulk materials in the silo to different subsequent processes.

[0003] In the prior art, a powder distribution cone is generally provided in the material distribution device, the tip of the distribution cone is vertically upward, and the discharge ports are evenly distributed around the distribution cone. After the material is fed from the top of the silo, it falls to the distribution cone, and under the guidance of the distribution cone, the powder is distributed to different discharge ports to achieve material distribution, such as the following technical solutions in the prior art:

[0004] The technical solution disclosed by the Chinese utility model patent with application number 202020099644.1, application date January 16, 2020, and patent name "A multi-outlet unloading steel cone bucket". The technical solution disclosed by the Chinese utility model patent with application number 202122371380.8, application date September 29, 2021, and patent name "A large silo unloading hopper". The technical solution disclosed by the Chinese utility model patent with application number 201120267249.0, application date July 26, 2011, and patent name "Silo discharge funnel and silo".

[0005] During actual application on site, it was found that the existing technologies, including the above-mentioned technical solutions, generally have the following defects: (1) When the material falls from the top of the silo and is distributed along the distribution cone, the material will continue to impact and rub against the surface of the distribution cone, which will cause damage to the surface of the distribution cone in the long run, thus affecting the service life of the distribution cone. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and to provide a uniform distribution device for powdered materials by arranging a material storage ring on the surface of a material distribution cone. After the material falls, it will remain on the inner side of the material storage ring, forming a protection ring on the surface of the material distribution cone. The subsequent falling material will contact the material ring, effectively avoiding damage to the material distribution cone caused by surface friction between the material and the material distribution cone, thereby extending the service life of the material distribution cone.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the uniform distribution device of the powdered material comprises a silo body, a belt conveyor is arranged at the upper port of the silo body, a material distribution cone is arranged at the bottom of the silo body, and a plurality of discharge pipes are arranged at the lower part of the silo body, the upper ports of the discharge pipes are connected with the silo body, and the discharge pipes are distributed around the material distribution cone. It is characterized in that: a plurality of material storage rings are mounted on the surface of the material distribution cone, and a receiving groove for residual material is formed between the inner side of each material storage ring and the surface of the material distribution cone.

[0008] Preferably, the diameters of the multiple material storage rings on the surface of the material distribution cone increase sequentially from the inside to the outside.

[0009] Preferably, the material storage ring is vertically fixed on the surface of the material distribution cone.

[0010] Preferably, a support plate is fixed on the upper part of each discharge pipe, the support plate is horizontally fixed on the surface of the warehouse body, and the support plate and the discharge pipe are connected by a steel cable.

[0011] Preferably, an oil cylinder is further provided at the lower part of the support plate, a gate plate is fixed at the piston rod of the oil cylinder, and an opening corresponding to the gate plate is opened at the upper part of the discharge pipe.

[0012] Preferably, a material monitoring device is provided at the upper port of the bin body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the present uniform distribution device for powdered materials, a material storage ring is arranged on the surface of the dividing cone. After the material falls, it will remain on the inner side of the material storage ring, forming a protective ring on the surface of the dividing cone. The subsequent falling material will contact the material ring, effectively avoiding damage to the dividing cone caused by surface friction between the material and the dividing cone, thereby extending the service life of the dividing cone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a uniform distribution device for powdery materials.

[0016] Figure 2 for Figure 1 AA section view.

[0017] Among them: 1. silo support platform 2, belt conveyor 3, silo body 4, support plate 5, oil cylinder 6, gate plate 7, steel cable 8, discharge pipe 9, material dividing cone 10, material storage ring 11, material monitoring device. DETAILED DESCRIPTION

[0018] Figure 1~2 It is the best embodiment of the utility model, and the following Figure 1~2 The utility model is further described.

[0019] like Figure 1~2 As shown, a uniform distribution device for powdery materials includes a cylindrical silo 3, which is open at the upper end and closed at the lower end. The silo 3 is supported by a support frame (not shown) and is located on the ground surface. A silo support platform 1 is provided on one side of the upper end of the silo 3, and a belt conveyor 2 for conveying materials to the silo 3 is provided on the surface of the silo support platform 1, and the outlet of the belt conveyor 3 extends to the center of the silo.

[0020] A material monitoring device 11 is provided on the top of the silo 3 to detect the material level in the silo 3. When the material level in the silo 3 rises to the pre-judged upper limit, a signal is sent to the controller, and the controller controls the belt conveyor 2 to stop working. It is particularly noted here that the material monitoring device 11 is Figure 1 It is only used for illustration and does not show its specific structure. The reason is that the material monitoring device 11 can be implemented by the known technology of the prior art, such as the technical solution disclosed in the Chinese utility model patent with application number 202220342749.4, application date February 19, 2022, and patent name "A material level monitoring system for powder silo". Other means can also be used, such as measuring the height of the material from the upper port of the silo 3 by distance measurement (such as laser distance measurement) to monitor the material level.

[0021] A material distribution cone 9 is arranged at the bottom of the silo 3, and the tip of the material distribution cone 9 is vertically upward and located at the center of the silo 3. A plurality of material storage rings 10 are fixedly mounted on the outer surface of the material distribution cone 9, and all the material storage rings 10 are concentrically fixed on the conical surface of the material distribution cone 9. The diameter of the material storage ring 10 increases from the inside to the outside, so after all the material storage rings 10 are fixed, multiple steps are arranged in sequence from top to bottom along the axial direction of the material distribution cone 9.

[0022] A plurality of discharge pipes 8 are evenly arranged at the bottom of the silo 3, the upper end of the discharge pipe 8 is connected to the silo 3, and the lower end of the discharge pipe 8 is tilted downward. When the belt conveyor 2 transports materials into the silo 3, the materials fall into the bottom of the silo 3, fall along the surface of the distribution cone 9 and are distributed to each discharge pipe 8, and are distributed through the discharge pipe 8. Each of the above-mentioned storage rings 10 is vertically arranged, so after the materials fall, a part of the powder will always remain on the inner side of the storage ring 10 and form a material ring. The subsequent falling materials will contact the material ring, and will not directly impact the cone of the distribution cone 9, which effectively avoids the damage to the distribution cone 9 caused by the surface friction between the materials and the distribution cone 9, and prolongs the service life of the distribution cone 9.

[0023] A support plate 4 is horizontally arranged on the upper part of each discharge pipe 8, and the support plate 4 is fixed on the outer wall of the warehouse body 3. A hook is arranged at the edge of each support plate 4, and a lifting ring is arranged on the surface of each discharge pipe 8. The hook is connected to the corresponding lifting ring by a steel cable. Therefore, the discharge pipe 8 is pulled by the support plate 4, which improves the stability of the discharge pipe 8.

[0024] An oil cylinder 5 is arranged on the inner side of each support plate 4, and the piston rod of the oil cylinder 5 is vertically downward. A gate plate 6 is fixed at the lower end of the piston rod of the oil cylinder 5. The discharge pipe 8 is a rectangular pipe, and an opening facing the gate plate 6 is opened at the upper part of the discharge pipe 8. When the piston rod of the oil cylinder 5 is output, the gate plate 6 enters the discharge pipe 8 to cut off the discharge pipe 8, and the material is no longer output through the discharge pipe 8. Through the controller, each oil cylinder 5 is controlled to act in turn, so that the material is output through each discharge pipe 8 in turn at a certain time interval, and the material is evenly distributed.

[0025] The specific working process and working principle are as follows:

[0026] The belt conveyor 2 works to feed materials into the silo 3. After the materials fall into the bottom of the silo 3, they fall along the surface of the material distribution cone 9 and are distributed to each discharge pipe 8. The materials are distributed through the discharge pipe 8 and then sent to the subsequent process. During the material falling process, a part of the powder will always remain on the inner side of the material storage ring 10 and form a material ring. The subsequent falling materials will contact the material ring and will not directly impact the cone of the material distribution cone 9, which effectively avoids the damage to the material distribution cone 9 caused by the surface friction between the materials and the material distribution cone 9, and prolongs the service life of the material distribution cone 9.

[0027] The controller controls the external hydraulic station to work, and controls the action of each oil cylinder 5 in turn, so that the material is output through each discharge pipe 8 in turn at a certain time interval, and the material is evenly distributed. When the material monitoring device 11 detects that the material height in the silo 3 reaches the upper limit, the controller controls the belt conveyor 2 to stop working to prevent the material from overflowing from the top of the silo 3.

[0028] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A uniform distribution device for powdery materials, comprising a silo (3), a belt conveyor (2) arranged at the upper end of the silo (3), a material distribution cone (9) arranged at the bottom of the silo (3), and a plurality of discharge pipes (8) arranged at the lower part of the silo (3), wherein the upper end of the discharge pipe (8) is connected to the inside of the silo (3), and the discharge pipes (8) are distributed around the circumference of the material distribution cone (9), characterized in that: A plurality of material storage rings (10) are mounted on the surface of the material distribution cone (9), and a receiving groove for residual material is formed between the inner side of each material storage ring (10) and the surface of the material distribution cone (9).

2. The uniform distribution device for powdery materials according to claim 1, characterized in that: The diameters of the plurality of material storage rings (10) on the surface of the material distribution cone (9) increase sequentially from the inside to the outside.

3. The uniform distribution device for powdery materials according to claim 1 or 2, characterized in that: The material storage ring (10) is vertically fixed on the surface of the material distribution cone (9).

4. The uniform distribution device for powdery materials according to claim 1, characterized in that: A support plate (4) is fixed on the upper part of each discharge pipe (8), the support plate (4) is horizontally fixed on the surface of the bin body (3), and the support plate (4) and the discharge pipe (8) are connected via a steel cable (7).

5. The uniform distribution device for powdery materials according to claim 1, characterized in that: An oil cylinder (5) is also provided at the lower part of the support plate (4), a gate plate (6) is fixed at the piston rod of the oil cylinder (5), and an opening corresponding to the gate plate (6) is provided at the upper part of the discharge pipe (8).

6. The uniform distribution device for powdery materials according to claim 1, characterized in that: A material monitoring device (11) is provided at the upper end of the bin body (3).

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