Stock bin capable of reducing hanging of mineral powder on wall

Abstract

The utility model discloses a stock bin capable of reducing hanging of mineral powder on a wall, which relates to the field of mineral powder storage equipment and comprises a bin body, a blanking hole is arranged at the bottom of the bin body, an injection mechanism for injecting compressed air along the bin wall is arranged on the bin body close to the blanking hole, and an air outlet end of the injection mechanism is positioned in the bin body. The air inlet end of the injection mechanism is connected to a main air pipe with compressed air. Compared with the prior art, the powder adhered to the bin wall can be better blown away through compressed air sprayed along the bin wall, after the injected air is mixed with the powder, gaps among particles are enlarged, the wall hanging phenomenon is greatly reduced, and the raw material conveying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mineral powder storage equipment field especially a kind of bunker for reducing mineral powder wall hanging. BACKGROUND

[0002] Mineral powder is used as the raw material of fiber preparation, such as the raw material for the preparation of basalt fiber is basalt stone material, which is usually in powder form. These mineral powder raw materials are stored in the bunker.

[0003] In practical application, it is found that some mineral powder raw materials or a batch of mineral powder raw materials are prone to wall hanging phenomenon due to their fine powder, small particle size and high viscosity caused by moisture content in the raw materials. Once the wall hanging phenomenon occurs, the amount of powder hanging on the wall will increase, and the thickness of the powder hanging on the wall will also increase. As a result, the discharge hole diameter at the bottom of the bunker will gradually decrease, reducing the discharge speed of the mineral powder raw materials. In addition, in humid weather, the discharge hole may be blocked, which seriously affects the discharge.

[0004] Currently, the problem is solved by employees knocking on the wall of the bunker with a wooden hammer or an iron hammer or by using a vibrator on the wall. The powder on the wall is loosened by vibration, forcing it to continue to fall. However, due to the large volume of the bunker and the high storage capacity of the powder, it is time-consuming and labor-intensive to knock on the wall or use a vibrator, and it is difficult to effectively improve the delivery efficiency of the powder. Therefore, it is necessary to improve the bunker to reduce the wall hanging phenomenon of the mineral powder raw materials. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a bunker for reducing mineral powder wall hanging, which can better blow away the powder adhering to the wall by injecting compressed air along the wall. The air injected into the powder increases the gap between the particles, significantly reduces the wall hanging phenomenon, and improves the delivery efficiency of the raw materials.

[0006] The utility model adopts the following technical solutions: a bunker for reducing mineral powder wall hanging, including a bunker body, the bottom of the bunker body has a discharge hole, and a spraying mechanism for spraying compressed air along the wall is arranged near the discharge hole on the bunker body. The air outlet end of the spraying mechanism is located inside the bunker body, and the air inlet end of the spraying mechanism is connected to the main air pipe with compressed air.

[0007] Further, an electromagnetic valve is arranged between the spraying mechanism and the main air pipe, and the electromagnetic valve is connected to the controller.

[0008] Further, the number of spraying mechanisms is at least two, and the plurality of spraying mechanisms are arranged in a circumferential array around the bunker body.

[0009] Further, the spraying mechanism comprises a mounting base fixed on the bin body, the mounting base is provided with an air outlet at one end inside the bin body, and the mounting base is provided with an air inlet at one end outside the bin body, the air inlet is connected to the main air pipe, the air inlet and the air outlet are communicated through a flow channel, and the airflow direction of the air outlet is parallel to the bin wall or / and tangent to the circumference of the bin wall.

[0010] Further, the spraying mechanism further comprises a plate-shaped air equalizing plate, the inner side of the mounting base is provided with an air outlet hole communicated with the flow channel, the air equalizing plate is located in front of the air outlet hole, and the air equalizing plate is connected with the mounting base through a connecting rod, and the gap between the air equalizing plate and the mounting base is the air outlet.

[0011] Further, the connecting rod is a plurality of and arranged in a circumferential array with the spraying direction of the air outlet hole as an axis, and there is a gap between adjacent connecting rods.

[0012] Further, the face where the air equalizing plate is located is perpendicular to the spraying direction of the air outlet hole.

[0013] Further, the mounting base comprises two bases provided with flow channels, the two bases are combined on the bin body through bolts passing through the bin body, and the bin body is provided with a ventilation hole to communicate the flow channels of the two mounting bases.

[0014] Therefore, the beneficial effects of the present application are as follows:

[0015] The compressed gas is obtained from the main air pipe, and the compressed gas is sprayed along the bin wall through the spraying mechanism, so that the powder adhered to the bin wall can be better blown away, the air injected and mixed with the powder also increases the gap between the particles, greatly reduces the wall sticking phenomenon, and improves the raw material conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be described by examples and with reference to the accompanying drawings, in which:

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is Figure 1 is a sectional view in A-A direction;

[0019] In the drawings, 1 is a bin body, 11 is a discharging hole, 2 is a spraying mechanism, 21 is a mounting base, 211 is a base, 212 is a flow channel, 213 is an air inlet, 214 is an air outlet hole, 215 is a bolt, 22 is an air equalizing plate, 23 is a connecting rod, 3 is a main air pipe, and 4 is an electromagnetic valve. DETAILED DESCRIPTION

[0020] In the description of this specification, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0021] Furthermore, the use of terms such as "horizontal" or "vertical" in this specification does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this specification, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, a link can be a fixed link, a detachable link, or an integral link; it can be a mechanical link or an electrical link; it can be a direct link or an indirect link through an intermediate medium; it can be a connection within two components.

[0023] Example 1

[0024] like Figures 1-2 As shown, a silo for reducing mineral powder adhesion to the wall includes a silo body 1. The bottom of the silo body 1 has a discharge hole 11. The silo body 1 has a cylindrical section and a conical section located at the bottom of the cylindrical section. The discharge hole 11 is located at the lower end of the conical section, that is, the material in the silo body 1 can flow out of the discharge hole 11 under its own gravity. A spraying mechanism 2 for spraying compressed air along the silo wall is provided on the silo body 1 near the discharge hole 11, that is, at the position of the conical section. The air outlet of the spraying mechanism 2 is located inside the silo body 1, and the air inlet of the spraying mechanism 2 is connected to a main air pipe 3 containing compressed air. Preferably, the pressure of the compressed gas should not be less than 0.4 MPa.

[0025] It should be noted that the compressed gas in the main air pipe 3 is filtered to remove moisture, in order to avoid the compressed gas carrying moisture and increasing the humidity inside the chamber 1, thus preventing the adverse effects of moisture; or, a dryer can be installed between the injection mechanism 2 and the main air pipe 3 to dry the moisture in the filtered compressed gas.

[0026] Specifically, by obtaining compressed gas from the main air pipe 3 and spraying the compressed gas along the bin wall through the spraying mechanism 2, the powder adhering to the bin wall can be better blown away, and the air injected and mixed with the powder also increases the gap between the particles, greatly reduces the wall sticking phenomenon, and improves the raw material conveying efficiency.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, a specific embodiment is further proposed.

[0029] In a feasible embodiment, the spraying mechanism 2 is provided with an electromagnetic valve 4 between the spraying mechanism 2 and the main air pipe 3, and the electromagnetic valve 4 is connected to the controller; the controller realizes the conveying and disconnection of the compressed gas of the spraying mechanism 2 by controlling the opening and closing of the electromagnetic valve 4, so as to realize the flushing of the material on the inner wall of the bin body 1.

[0030] Further, the controller can be a pulse controller or a PLC programmable controller; during material conveying, the controller controls the periodic opening and closing of the electromagnetic valve 4 to realize the periodic flushing of the material, and preferably, the spraying is performed once every 10s, and the spraying time is 2s; of course, the time can also be adjusted according to the actual situation.

[0031] In a feasible embodiment, the number of spraying mechanisms 2 is at least two, and a plurality of spraying mechanisms 2 are arranged in a circumferential array of the bin body 1, so that the spraying positions exist uniformly along the circumference of the bin body 1, and the feasibility of flushing the wall-stuck material is improved; preferably, the number of spraying mechanisms 2 is three.

[0032] In a feasible embodiment, the spraying mechanism 2 comprises a mounting seat 21 fixed on the bin body 1, one end of the mounting seat 21 located inside the bin body 1 has a gas outlet, and the other end of the mounting seat 21 located outside the bin body 1 has a gas inlet 213 connected to the main air pipe 3; the gas inlet 213 and the gas outlet are communicated through a flow channel 212, and the gas flow direction of the gas outlet is parallel to the bin wall or / and tangent to the circumference of the bin wall, that is, the direction of the gas flow sprayed from the gas outlet is parallel to the direction of the bin wall generatrix, and tangent to the circumference of the bin wall, so as to realize 360° gas flow spraying centered on the mounting seat 21.

[0033] Further, the spraying mechanism 2 further comprises a plate-shaped air equalizing plate 22, the inner side of the mounting seat 21 has a gas outlet hole 214 communicated with the flow channel 212, the air equalizing plate 22 is located in front of the gas outlet hole 214, and the air equalizing plate 22 is connected with the mounting seat 21 through a connecting rod 23; the gap between the air equalizing plate 22 and the mounting seat 21 is the gas outlet; after the compressed air flows out from the gas outlet hole 214, it impacts on the air equalizing plate 22, and the compressed air spreads around, and is sprayed out of the gas outlet to act on the wall-stuck material, so as to realize the flushing of the wall-stuck material.

[0034] Further, the connecting rods 23 are multiple and arranged in a circumferential array with the jet direction of the air outlet holes 214 as the axis, so that the positions of the air distribution plate 22 supported by the connecting rods 23 can be evenly distributed in a circumferential direction with the jet direction of the air outlet holes 214 as the axis, avoiding eccentric moment generation and improving service life; gaps exist between adjacent connecting rods 23, and the dispersed compressed air flows out from the gaps between the connecting rods 23.

[0035] Further, the surface where the air distribution plate 22 is located is perpendicular to the jet direction of the air outlet holes 214, so that the compressed air flow can be evenly dispersed in 360° directions after colliding with the air distribution plate 22, so that the wall-hung materials centered on the jet mechanism 2 are subjected to uniform flushing.

[0036] Further, the mounting seat 21 includes two bases 211 with flow channels 212, the two bases 211 are combined on the bin body 1 through the bolts 215 passing through the bin body 1, and the bin body 1 is provided with a ventilation hole to make the flow channels 212 of the two mounting seats 21 communicate, so as to reduce the area of the bin body 1 damaged during installation and make the bin body 1 maintain the original strength as much as possible. Of course, the position where the base 211 is mounted on the bin body 1 is also provided with a hole for the bolt 215 to pass through and for the air flow to pass through.

[0037] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature or any new combination disclosed in the specification, and any new method or process step or any new combination disclosed.

Claims

1. A silo for reducing the wall sticking of a mineral powder, characterized in that: The application relates to a kind of air injection mechanism and its application, including warehouse body (1), the bottom of warehouse body (1) has blanking hole (11), warehouse body (1) is set with the injection mechanism (2) of ejecting compressed air along warehouse wall in the position close to blanking hole (11), the air outlet end of the injection mechanism (2) is located in warehouse body (1), the air inlet end of the injection mechanism (2) is connected to the main gas pipe (3) with compressed air;The injection mechanism (2) includes mounting seat (21) fixed on warehouse body (1), the one end of mounting seat (21) is located in the inside of warehouse body (1) and has air outlet, the one end of mounting seat (21) is located in the outside of warehouse body (1) and has air inlet (213), air inlet (213) is connected to main gas pipe (3), air inlet (213) is communicated with air outlet by flow channel (212), and the airflow direction of air outlet is parallel to warehouse wall or / and is tangent to the circumference of warehouse wall.

2. The bin of claim 1, wherein: The injection mechanism (2) is provided with electromagnetic valve (4) between main gas pipe (3), and the electromagnetic valve (4) is connected to controller.

3. The bin of claim 1, wherein: The number of the injection mechanism (2) is at least two, and multiple injection mechanisms (2) are arranged in the circumference of warehouse body (1).

4. The bin of claim 1, wherein: The injection mechanism (2) further includes plate-shaped air equalizing plate (22), the inner side of mounting seat (21) has air outlet hole (214) communicated with flow channel (212), air equalizing plate (22) is located in front of air outlet hole (214), and air equalizing plate (22) is connected with mounting seat (21) by connecting rod (23), and the gap between air equalizing plate (22) and mounting seat (21) is air outlet.

5. The bin of claim 4, wherein: The connecting rod (23) is multiple and arranged in the circumferential array with the injection direction of air outlet hole (214) as axis, and there is gap between adjacent connecting rods (23).

6. The bin of claim 4, wherein: The face where air equalizing plate (22) is located is perpendicular to the injection direction of air outlet hole (214).

7. The hopper of claim 1, wherein: Mounting seat (21) includes two base plates (211) with flow channel (212), two base plates (211) are combined on warehouse body (1) by screw bolt (215) through warehouse body (1), and air hole is formed on warehouse body (1) to make flow channel (212) of two mounting seats (21) communicated.

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