Stock bin suction and discharge device

Abstract

The utility model discloses a stock bin suction and discharge device, which relates to the technical field of ferrous metallurgical equipment and comprises a suction and discharge pipe arranged below a stock bin and an air extractor arranged on the right side of the suction and discharge pipe, a detachable isolation plate, a suction and discharge pipe feed port and a suction and discharge pipe discharge port are arranged on the suction and discharge pipe, and a suction and discharge pipe air inlet is arranged below the detachable isolation plate. A multi-size connector is arranged at one end of a discharge port of the suction and discharge pipe, a filter is arranged at an air outlet of the air extractor, an air outlet of the filter penetrates through an air inlet of the suction and discharge pipe and extends into the suction and discharge pipe, and the stock bin and the suction and discharge pipe are connected through the vertically-arranged communicating pipe, so that materials are discharged more smoothly; and the alarm is arranged on the pressure valve of the air exhauster, so that the situation that the negative pressure is too large due to the fact that the flowability of air in the suction and discharge pipe is reduced is avoided, and the stock bin suction and discharge device has high discharge efficiency and high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of iron and steel metallurgy equipment, in particular to a bin suction and discharge device. Background Art

[0002] In the prior art, for example, CN102094831B discloses a high-temperature and highly corrosive material suction and discharge machine, which includes a machine shell, an air inlet at the front side of the machine shell, an outlet of the air inlet at the front side of the machine shell, an impeller, blades, a disk, an air inlet at the front side of the impeller, a front-side isolation shunt at the front side of the impeller, an outlet of the isolation shunt, an air inlet at the rear side of the impeller, an air inlet at the rear side of the machine shell, an impeller working chamber at the rear part of the axial direction of the machine shell, and materials at the front side of the axial direction of the machine shell. It can directly suck and discharge a variety of high-temperature and highly corrosive materials, and can also achieve a small amount of useless air mixed, a large effective suction and discharge volume for various special materials, and can meet various usage needs of people;

[0003] However, the air flow intensity provided by the impeller fan is insufficient, and it is easy to cause too strong negative pressure inside the device during the suction and discharge of materials, exceeding the load capacity of the device.

[0004] CN214779267U discloses a suction and discharge device and a dust removal system for a dust removal bin, which includes a bin, a suction and discharge pipe and a connecting pipe. The lower end of the bin is set as a discharge port, the suction and discharge pipe is arranged below the discharge port, and both ends of the connecting pipe are respectively connected to the discharge port of the bin and the suction and discharge pipe, and an air storage tank is used to provide air flow for the device;

[0005] However, the connection between the suction and discharge pipe and the collection device is a right-angle pipe, and it is easy for materials to adhere at the corner of the right-angle pipe. The accumulation of materials at the corner of the pipe will cause difficulties in cleaning. In addition, the gas in the air storage tank is limited, and as the working time becomes longer, the air flow intensity becomes weaker, resulting in a decrease in the suction and discharge efficiency. Content of the Utility Model

[0006] The purpose of the utility model is to provide a bin suction and discharge device, so that the materials are more fluent when discharged, improve the discharge efficiency of the materials, avoid the adsorption and retention of materials in the pipeline, ensure the safety of the material discharge process, and reduce the difficulty of later cleaning and maintenance.

[0007] To achieve the above purpose, the utility model provides a bin suction and discharge device, which includes a suction and discharge pipe arranged below the bin and a suction machine arranged on the right side of the suction and discharge pipe. The suction and discharge pipe is provided with a detachable isolation plate, a suction and discharge pipe inlet and a suction and discharge pipe outlet. A suction and discharge pipe air inlet is arranged below the detachable isolation plate. One end of the suction and discharge pipe outlet is provided with a multi-size interface. The air outlet of the suction machine is provided with a filter, and the air outlet of the filter extends into the suction and discharge pipe through the suction and discharge pipe air inlet.

[0008] Preferably, the detachable partition board is fixed to the right opening of the suction and discharge pipe by bolts. The feed inlet of the suction and discharge pipe is connected to the suction and discharge pipe through a necked butt welding flange, and the discharge outlet of the suction and discharge pipe is connected to the suction and discharge pipe through an embedded thread connection. The feed inlet of the suction and discharge pipe is an inverted frustum of a cone, and the multi-size interface is a cylindrical shape that tapers at both ends.

[0009] Preferably, a communicating pipe is vertically arranged between the storage bin and the suction and discharge pipe. The upper end of the communicating pipe is connected to the discharge outlet of the storage bin, and the lower end of the communicating pipe is connected to the feed inlet of the suction and discharge pipe. The communicating pipe is cylindrical, and a star-shaped ash discharge valve is arranged on the communicating pipe.

[0010] Preferably, the air outlet of the filter is hermetically connected to the air inlet of the suction and discharge pipe through a detachable rubber ring, and a curved filter screen is arranged at the air outlet of the filter.

[0011] Preferably, the air extractor is set as a double-cylinder air extractor. A pressure valve is arranged above the double-cylinder air extractor, and a buzzer alarm is arranged on the pressure valve. When the air pressure is lower than the set value, the pressure valve automatically pops up, and at the same time, the buzzer alarm gives an alarm.

[0012] Preferably, a fine filter pipe is arranged at the air inlet of the double-cylinder air extractor. The fine filter pipe is connected to one end of a coarse filter pipe through an arc-shaped elbow, and the other end of the coarse filter pipe is connected to a gas collecting pipe.

[0013] Preferably, one end of the gas collecting pipe is provided with a circular gas collecting port, and the diameter of the circular gas collecting port is larger than the diameter of the gas collecting pipe.

[0014] Preferably, the inside of the coarse filter pipe is filled with filter cotton, and the inside of the fine filter pipe is filled with activated carbon.

[0015] Therefore, the bin suction and discharge device of the present utility model adopting the above structure has the following beneficial effects:

[0016] (1) High material discharge efficiency: The storage bin and the suction and discharge pipe are connected through the vertically arranged communicating pipe, making the material discharge smoother;

[0017] (2) Facilitate later maintenance: The position of the suction and discharge pipe is raised by using the arc-shaped elbow to solve the problem that the suction and discharge pipe directly placed on the ground is easy to attach dust and inconvenient to clean;

[0018] (3) High safety: An alarm is arranged on the pressure valve of the air extractor to avoid excessive negative pressure caused by the reduction of air fluidity in the suction and discharge pipe.

[0019] The technical solution of the present utility model will be further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a bin suction and discharge device of the present utility model;

[0021] Figure 2 This is a partial structural diagram of a material bin suction and discharge device of the present utility model.

[0022] Among them: 1. Material bin; 2. Connecting pipe; 3. Star-shaped ash discharge valve; 4. Suction and discharge pipe; 401. Suction and discharge pipe air inlet; 402. Suction and discharge pipe feed inlet; 403. Suction and discharge pipe discharge outlet; 5. Removable partition board; 6. Necked butt welding flange; 7. Filter; 8. Double-cylinder air extractor; 9. Pressure valve; 10. Fine filter pipe; 11. Arc-shaped elbow; 12. Coarse filter pipe; 13. Gas collecting pipe; 14. Circular gas collecting port; 15. Curved surface filter screen; 16. Removable rubber ring; 17. Multi-size interface; 18. Embedded thread. Specific embodiments

[0023] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0025] As Figure 1 shown, the present utility model provides a material bin suction and discharge device, including a suction and discharge pipe 4 arranged below the material bin 1 and a double-cylinder air extractor 8 arranged on the right side of the suction and discharge pipe 4. A connecting pipe 2 is vertically arranged between the material bin 1 and the suction and discharge pipe 4. The upper end of the connecting pipe 2 is connected to the discharge outlet of the material bin 1, and the lower end of the connecting pipe 2 is connected to the suction and discharge pipe feed inlet 402. The connecting pipe 2 is cylindrical, and a star-shaped ash discharge valve 3 is arranged on the connecting pipe 2;

[0026] As Figure 2As shown in the figure, a detachable partition plate 5, a suction and discharge pipe inlet 402, and a suction and discharge pipe outlet 403 are provided on the suction and discharge pipe 4. The detachable partition plate 5 is fixed to the right opening of the suction and discharge pipe 4 by bolts. Below the detachable partition plate 5, a suction and discharge pipe air inlet 401 is provided. The suction and discharge pipe inlet 402 is connected to the suction and discharge pipe 4 through a necked butt welding flange 6. The suction and discharge pipe outlet 403 is connected to the suction and discharge pipe 4 through an embedded thread 18. The suction and discharge pipe inlet 402 is an inverted frustum shape. One end of the suction and discharge pipe outlet 403 is provided with a multi-size interface 17, and the multi-size interface 17 is a cylindrical shape that tapers at both ends;

[0027] A filter 7 is provided at the air outlet of the double-cylinder air pump 8. The air outlet of the filter 7 extends into the interior of the suction and discharge pipe 4 through the suction and discharge pipe air inlet 401. The air outlet of the filter 7 is hermetically connected to the suction and discharge pipe air inlet 401 through a detachable rubber ring 16. A curved surface filter screen 15 is provided at the air outlet of the filter 7;

[0028] A fine filter pipe 10 is provided at the air inlet of the double-cylinder air pump 8. The fine filter pipe 10 is connected to one end of a coarse filter pipe 12 through an arc-shaped elbow 11. The other end of the coarse filter pipe 12 is connected to a gas collecting pipe 13. One end of the gas collecting pipe 13 is provided with a circular gas collecting port 14, and the diameter of the circular gas collecting port 14 is larger than the diameter of the gas collecting pipe 13; The interior of the coarse filter pipe 12 is filled with filter cotton, and the interior of the fine filter pipe 10 is filled with activated carbon;

[0029] A pressure valve 9 is provided above the double-cylinder air pump 8, and a buzzer alarm is provided on the pressure valve 9.

[0030] Embodiment

[0031] Open the pressure valve 9 of the double-cylinder air pump 8 and set the air pressure threshold;

[0032] The air flow of the double-cylinder air pump 8 enters the coarse filter pipe 12 from the circular gas collecting port 14 for the first filtration. The filter cotton in the coarse filter pipe 12 blocks large particles in the air flow outside. After the air flow passes through the coarse filter pipe 12, it enters the arc-shaped elbow 11. The arc-shaped elbow 11 raises the position of the suction and discharge pipe 4 to reduce the adhesion of dust on the outer wall of the suction and discharge pipe 4. After the air flow passes through the arc-shaped elbow 11, it enters the fine filter pipe 10 for the second filtration. The activated carbon in the fine filter pipe 10 adsorbs small particles in the air flow. The impurities in the air flow are removed through two filtrations to prevent foreign impurities from entering the suction and discharge pipe 4 and adhering to the inner wall of the suction and discharge pipe, thereby reducing the air flow intensity flowing in the suction and discharge pipe 4;

[0033] The air flow enters the cylinder of the double-cylinder air extractor 8 after passing through the fine filter tube 10. By setting two cylinders, the air pressure difference is increased, further enhancing the air flow intensity. The air flow is discharged from the air outlet of the double-cylinder air extractor 8 and enters the filter 7. The filter 7 conducts more precise impurity removal on the air flow, removing the impurities in the air flow that cannot be adsorbed by the activated carbon in the fine filter tube 10, and finally is discharged from the air outlet of the filter 7 and enters the interior of the suction and discharge pipe 4;

[0034] The detachable partition plate 5 and the detachable rubber ring 16 further ensure the airtightness of the device, preventing the materials in the suction and discharge pipe 4 from leaking to the outside. The curved surface filter screen 15 further guarantees the safety of the device, preventing the materials in the suction and discharge pipe 4 from flowing back into the double-cylinder air extractor 8 through the filter 7 and preventing the accumulation of materials in the double-cylinder air extractor 8;

[0035] When the air flow enters the interior of the suction and discharge pipe 4, the valve of the silo 1 is opened, and at the same time, the star-shaped ash discharge valve 3 is adjusted to control the discharge amount of the materials. The materials are discharged from the feed port 402 of the suction and discharge pipe to the discharge port 403 of the suction and discharge pipe under the pushing action of the air flow, and finally are discharged from the discharge port 403 of the suction and discharge pipe into the material truck. One end of the discharge port 403 of the suction and discharge pipe is provided with a multi-size interface 17. The multi-size interface 17 is a cylindrical shape with gradually tapered ends at both ends and can be connected to material trucks with different interfaces, making the applicable range of the silo suction and discharge device wider;

[0036] When the air flow intensity reaches the set threshold value, the pressure valve 9 will automatically close, and at the same time, the buzzer alarm will sound, preventing the internal negative pressure from becoming too large due to the decrease in the air flow intensity and exceeding the load capacity of the silo suction and discharge device.

[0037] Therefore, for a silo suction and discharge device adopting the above structure in the present utility model, the silo and the suction and discharge pipe are connected through a vertically arranged communicating pipe, making the discharge of materials smoother. The position of the suction and discharge pipe is raised by using an arc-shaped elbow, solving the problem that the suction and discharge pipe directly placed on the ground is easy to adhere to dust and inconvenient to clean. An alarm is set on the pressure valve of the air extractor to avoid excessive negative pressure caused by the reduction of air fluidity in the suction and discharge pipe.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A silo suction and discharge device, characterized in that: It includes a suction and discharge pipe arranged below the silo and an exhaust fan arranged on the right side of the suction and discharge pipe, a detachable isolation plate, a suction and discharge pipe feed port and a suction and discharge pipe discharge port are arranged on the suction and discharge pipe, an air inlet of the suction and discharge pipe is arranged below the detachable isolation plate, one end of the suction and discharge pipe discharge port is arranged with multi-size interfaces, a filter is arranged at the air outlet of the exhaust fan, and the air outlet of the filter extends through the air inlet of the suction and discharge pipe to the inside of the suction and discharge pipe.

2. A silo suction and discharge device according to claim 1, characterized in that: The removable isolation plate is fixed to the right opening of the suction and discharge pipe by bolts, the suction and discharge pipe inlet and the suction and discharge pipe are connected by a neck butt-welded flange, the suction and discharge pipe outlet and the suction and discharge pipe are connected by embedded threads, the suction and discharge pipe inlet is an inverted truncated cone, and the multi-size interface is a cylindrical shape with tapered ends.

3. A silo suction and discharge device according to claim 1, characterized in that: A connecting pipe is vertically arranged between the silo and the suction and discharge pipe, the upper end of the connecting pipe is connected to the discharge port of the silo, and the lower end of the connecting pipe is connected to the feed port of the suction and discharge pipe. The connecting pipe is cylindrical and is provided with a star-shaped ash discharge valve.

4. A silo suction and discharge device according to claim 1, characterized in that: The air outlet of the filter is sealed and connected with the air inlet of the suction and exhaust pipe through a detachable rubber ring, and the air outlet of the filter is provided with a curved filter screen.

5. A silo suction and discharge device according to claim 1, characterized in that: The vacuum pump is set as a double-cylinder vacuum pump. A pressure valve is set above the double-cylinder vacuum pump. A buzzer alarm is set on the pressure valve. When the air pressure is lower than the set value, the pressure valve automatically pops up and the buzzer alarm sounds at the same time.

6. A silo suction and discharge device according to claim 5, characterized in that: A fine filter tube is arranged at the air inlet of the double-cylinder vacuum pump. The fine filter tube is connected to one end of the coarse filter tube through an arc-shaped elbow pipe, and the other end of the coarse filter tube is connected to the gas collecting pipe.

7. A silo suction and discharge device according to claim 6, characterized in that: A circular gas collecting port is arranged at one end of the gas collecting pipe, and the diameter of the circular gas collecting port is larger than the diameter of the gas collecting pipe.

8. A silo suction and discharge device according to claim 6, characterized in that: The inside of the coarse filter tube is filled with filter cotton, and the inside of the fine filter tube is filled with activated carbon.

Images