Automatic fluidization device for preventing silo from sticking materials

Abstract

The utility model relates to an automatic fluidizing device for preventing materials from adhering to a silo, which is favorable for realizing automatic fluidizing cleaning of adhered materials and blocked materials of a steel structure silo, ensuring full utilization of the volume of the steel structure silo and reducing the manual cleaning cost. Comprising a first branch pipe, a second branch pipe and a third branch pipe which are arranged on the circumferential face of the steel structure silo from bottom to top, the first branch pipe, the second branch pipe and the third branch pipe are all held in the circumferential direction, the pipe lengths of the first branch pipe, the second branch pipe and the third branch pipe decrease progressively, five fluidization units are distributed on the first branch pipe, three fluidization units are distributed on the second branch pipe, and one fluidization unit is distributed on the third branch pipe. Each fluidization unit is communicated with the interior of the silo through a fluidization opening in the corresponding position of the circumferential face, each branch pipe is connected with a gas source header pipe, and the fluidization openings prevent the silo from adhering materials by blowing air or nitrogen in a gas source so as to promote accumulated materials in the silo to recover the fluidization state and flow to a discharging opening in the bottom of the silo.

Description

Technical Field

[0001] This utility model relates to the field of automatic fluidization technology for powdery materials in steel structure silos, and in particular to an automatic fluidization device for preventing material from sticking to the silo. Background Technology

[0002] Steel structure silos offer numerous advantages over reinforced concrete silos, including rapid construction, light weight, high space utilization, good seismic performance, and reusability. However, they also suffer from poor corrosion resistance and insufficient stability. For instance, excessively fast or uneven feeding speeds, especially with high viscosity materials, can easily lead to material accumulation and compression within the silo, increasing the risk of material sticking and blockage. Furthermore, many steel structure silos have discharge ports at the bottom that are not centered, resulting in excessively large material accumulation angles and frequent material sticking during use. This severely impacts the effective storage capacity of the silo, causing a series of adverse effects on production. The impact is even more pronounced when storing highly viscous materials, sometimes forcing production to be interrupted.

[0003] Because steel silos have poor corrosion resistance and insufficient stability, they cannot be cleaned using air cannons (or nitrogen cannons, etc.) like reinforced concrete silos. Furthermore, relying on personnel to frequently enter steel silos to clean adhering materials poses significant safety risks. Utility Model Content

[0004] This utility model addresses the defects or deficiencies in the existing technology by providing an automatic fluidization device to prevent material sticking to silos. This device facilitates the automatic fluidization and cleaning of sticky and blocked materials in steel structure silos, ensuring full utilization of the silo's volume and reducing manual cleaning costs.

[0005] The technical solution of this utility model is as follows:

[0006] An automatic fluidization device for preventing material sticking in silos is characterized by comprising a first branch pipe, a second branch pipe, and a third branch pipe arranged from bottom to top on the circumference of a steel structure silo, all circumferentially supporting each other and decreasing in length. The first branch pipe has 5 fluidization units, the second branch pipe has 3 fluidization units, and the third branch pipe has 1 fluidization unit. Each fluidization unit is connected to the inside of the silo through a fluidization port at a corresponding position on the circumference. Each branch pipe is connected to a main air source pipe. The fluidization port prevents material sticking in the silo by injecting air or nitrogen from the air source, thereby causing the accumulated material in the silo to return to a fluidized state and flow into the discharge port at the bottom of the silo.

[0007] The fluidization unit has a unit pneumatic ball valve with one end connected to a branch pipe and the other end connected to three check valves via pipelines. The three check valves correspond to three fluidization ports.

[0008] The main gas supply pipe is connected to the gas source in sequence through a main pneumatic ball valve and a main manual ball valve.

[0009] The main pneumatic ball valve and each unit pneumatic ball valve are connected to a programmable logic controller (PLC) to automatically clean up the material stuck in the steel structure silo by adjusting the fluidization time and frequency according to the material position, stacking angle and material discharge smoothness, thus ensuring normal material discharge.

[0010] The technical effects of this utility model are as follows: This utility model provides an automatic fluidization device to prevent material sticking in silos, which can facilitate the automatic fluidization cleaning of sticking and blockage of materials in steel structure silos; ensure the uniformity of material quality, improve product stability and pass rate; ensure full utilization of the volume of steel structure silos, reduce the number of silos, and reduce silo investment; and avoid the safety risks faced by manual entry into silos for cleaning sticking materials, while reducing manual cleaning costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an automatic fluidization device for preventing material from sticking to silos, which implements this utility model.

[0012] Figure 2 yes Figure 1 A side view structural diagram.

[0013] Figure 3 yes Figure 1 A schematic diagram of the AA cross-sectional structure.

[0014] Figure 4 yes Figure 1 Schematic diagram of the BB cross-section structure.

[0015] Figure 5 yes Figure 1 A schematic diagram of the CC cross-section structure.

[0016] The reference numerals in the attached drawings are explained as follows: 1-Steel structure silo; 2-Fluidization inlet; 3-Fluidization unit; 4-Circumferential surface; 5-First branch pipe; 6-Second branch pipe; 7-Third branch pipe; 8-Main air supply pipe; 9-Discharge port; 10-Main pneumatic ball valve; 11-Main manual ball valve; 12-Material accumulation; 13-Unit pneumatic ball valve; 14-Check valve. Detailed Implementation

[0017] The following description, in conjunction with the embodiments and accompanying drawings, Figures 1-5 The present invention will be described below.

[0018] Figure 1 This is a schematic diagram of an automatic fluidization device for preventing material from sticking to silos, which implements this utility model. Figure 2 yes Figure 1 A side view structural diagram. Figure 3 yes Figure 1 A schematic diagram of the AA cross-sectional structure. Figure 4 yes Figure 1 Schematic diagram of the BB cross-section structure. Figure 5 yes Figure 1 A schematic diagram of the CC cross-section structure. (Reference) Figures 1 to 5 As shown, an automatic fluidization device for preventing material sticking in a silo includes a first branch pipe 5, a second branch pipe 6, and a third branch pipe 7 arranged from bottom to top on the circumferential surface 4 of a steel structure silo. The first branch pipe 5 has 5 fluidization units 3, the second branch pipe 6 has 3 fluidization units 3, and the third branch pipe 7 has 1 fluidization unit 3. Each fluidization unit 3 is connected to the inside of the silo through a fluidization port 2 at a corresponding position on the circumferential surface 4. Each branch pipe is connected to a main air source pipe 8. The fluidization port 2 prevents material sticking in the silo by blowing air or nitrogen from the air source, so as to promote the material 12 in the silo to return to the fluidized state and flow to the discharge port 9 at the bottom of the silo.

[0019] The fluidization unit 3 has a unit pneumatic ball valve 13 with one end connected to a branch pipe and the other end connected to three check valves 14 via pipelines. The three check valves 14 correspond to three fluidization ports 3. The main air supply pipe 8 is connected to the air source in sequence through a main pneumatic ball valve 10 and a main manual ball valve 11. The main pneumatic ball valve 10 and each unit pneumatic ball valve 13 are connected to a programmable logic controller (PLC) to automatically clean up the material adhering to the steel structure silo by adjusting the fluidization time and frequency according to the material bin position, stacking angle, and material discharge smoothness, ensuring normal material discharge.

[0020] This utility model discloses an automatic fluidization device to prevent material from sticking to silos. Its design structure is to precisely design one or more sets of three-dimensional parallel air or nitrogen (the specific choice depends on the material characteristics) mechatronics automatic fluidization and cleaning devices on one side of the material accumulation angle of the steel structure silo.

[0021] The device includes a main gas supply pipe, a manual shut-off valve for the main gas supply pipe, a main pipe (or a solenoid valve), branch gas supply pipes, manual shut-off valves for the branch pipes, pneumatic valves (or solenoid valves) for the branch pipes, check valves for the branch pipes, a PLC control module, a network cable, and a central control microcomputer operating program.

[0022] The device uses a combination of pneumatic valves (or solenoid valves) connected to pipelines to control the time and frequency of air source cleaning, thereby achieving automatic fluidized bed cleaning of the silos.

[0023] This utility model has the following features:

[0024] 1. To achieve automatic fluidization cleaning of materials stuck or blocked in steel structure silos.

[0025] 2. Ensure the uniformity of material quality to improve product stability and pass rate.

[0026] 3. Ensure full utilization of the steel structure silo volume, reduce the number of silos, and lower silo investment.

[0027] 4. This method avoids the safety risks associated with manually entering silos to clean sticky materials, while also reducing manual cleaning costs.

[0028] Contents not described in detail in this specification are existing technologies known to those skilled in the art. It is hereby indicated that the above description is intended to help those skilled in the art understand the present invention, but does not limit the scope of protection of the present invention. Any equivalent substitutions, modifications, improvements, and / or simplifications of the above descriptions that do not depart from the essence of the present invention fall within the scope of protection of the present invention.

Claims

1. An automatic fluidization device for preventing material sticking to silos, characterized in that, The silo is equipped with three branch pipes arranged from bottom to top on its circumference, each with a uniform circumferential grip and decreasing length. The first branch pipe has five fluidizing units, the second branch pipe has three fluidizing units, and the third branch pipe has one fluidizing unit. Each fluidizing unit is connected to the inside of the silo through a fluidizing port at a corresponding position on its circumference. Each branch pipe is connected to a main air source pipe. The fluidizing port prevents material from sticking to the silo by blowing air or nitrogen from the air source, so as to promote the material in the silo to return to a fluidized state and flow to the discharge port at the bottom of the silo.

2. The automatic fluidization device for preventing material sticking in silos according to claim 1, characterized in that, The fluidization unit has a unit pneumatic ball valve with one end connected to a branch pipe and the other end connected to three check valves via pipelines. The three check valves correspond to three fluidization ports.

3. The automatic fluidization device for preventing material sticking in silos according to claim 2, characterized in that, The main gas supply pipe is connected to the gas source in sequence through a main pneumatic ball valve and a main manual ball valve.

4. The automatic fluidization device for preventing material sticking in silos according to claim 3, characterized in that, The main pneumatic ball valve and each unit pneumatic ball valve are connected to a programmable logic controller (PLC) to automatically clean up the material stuck in the steel structure silo by adjusting the fluidization time and frequency according to the material position, stacking angle and material discharge smoothness, thus ensuring normal material discharge.

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