Automatic plugging device for aluminum oxide conveying and discharging pipe

Abstract

The utility model provides an aluminum oxide conveying discharge pipe automatic plugging device which comprises an installation support arranged on one side of a discharge pipe, a rotatable plugging plate mechanism is hinged to the installation support, and the installation support is provided with a driving mechanism used for pushing the plugging plate mechanism to rotate to close or be away from the discharge pipe. The blocking plate mechanism is pushed to rotate through the mechanism, so that the blocking plate mechanism can be conveniently switched between closing and opening of the discharging pipe, and when the blocking plate mechanism is far away from the discharging pipe, the discharging pipe can normally discharge; when the discharging pipe is closed by the blocking plate mechanism, dust, dust and the like in the air are prevented from entering the aluminum oxide storage bin through the discharging pipe, so that the impurity content of the aluminum oxide storage bin is increased; and the situation that wet air enters the pipeline, and consequently the alumina powder in the discharging pipe is damped and becomes sticky is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of discharging pipe blocking, in particular to an automatic blocking device for an alumina conveying discharging pipe. Background Art

[0002] After the alumina material is unloaded, the discharge pipe mouth is connected to the outside air for a long time. The dust and powder in the air will be continuously fed into the alumina storage bin through the discharge pipe due to negative pressure, causing its impurities to increase. The moist air will enter the inside of the pipe, and the alumina powder in the discharge pipe will become sticky due to moisture. The gaps in the current telescopic sleeve for transportation are filled with wet alumina powder, which can easily aggravate the wear of the telescopic sleeve. In severe cases, it will scratch the outer sleeve and cause leakage. To solve this problem, the factory staff will look for thin steel plates on site after the unloading is completed, and use the negative pressure in the alumina storage tank to stick them to the discharge pipe mouth. The disadvantage is that the thickness of the thin steel plate is difficult to control. If it is too thin, it is easy to deform and needs to be replaced frequently. If it is too heavy, it is easy to fall off. In addition, there are often more than eight docking devices working at the same time in a factory area, which leads to repeated work, cumbersome work, low efficiency, and waste of manpower. In view of the above situation, a technology is needed to solve the above problems.

[0003] The Chinese utility model with the publication date of 2019-11-05 and the publication number of CN209589358U provides an automatic pipe plugging tool, including a cylinder, a mounting bracket, a cam, a rocker arm, a pressure block, an O-ring, an inner support plate, a conical guide column and a lifting member; the cylinder is mounted on the mounting bracket; the lifting member is mounted on the piston rod of the cylinder; the cam is fixed on the lifting member; the middle part of the rocker arm is hinged on the mounting bracket; the pressure block is mounted on the mounting bracket and can slide along the axial direction of the mounting bracket; one end of the rocker arm is connected to the cam and the other end is connected to the pressure block; the O-ring is sleeved on the mounting bracket and the pressure block is pressed on the O-ring; the inner support plate is mounted on the mounting bracket and can slide along the radial direction of the mounting bracket; the conical guide column is fixed on the lifting member, and a conical surface is provided on the conical guide column, and the conical surface is connected to the inner support plate; the O-ring is two, arranged up and down. However, the pipe plugging tool of the patent is not convenient for convenient and automatic switching between opening and plugging. Summary of the invention

[0004] In view of the above technical problems, the utility model proposes an automatic plugging device for an alumina conveying and unloading pipe, which is used to solve the problem that the plugging tooling of the pipeline in the prior art is not convenient for convenient and automatic switching between opening and plugging.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] An automatic plugging device for an alumina conveying discharge pipe comprises a mounting support arranged at one side of the discharge pipe, a rotatable plugging plate mechanism is hinged on the mounting support, and a driving mechanism is provided on the mounting support for pushing the plugging plate mechanism to rotate and close or away from the discharge pipe. The utility model promotes the rotation of the plugging plate mechanism through a telescopic mechanism, so that the plugging plate mechanism is easy to switch between closing and opening the discharge pipe, so that when the plugging plate mechanism is away from the discharge pipe, the discharge pipe can be discharged normally; when the plugging plate mechanism closes the discharge pipe, dust and powder in the air are prevented from entering the alumina storage bin through the discharge pipe, thereby increasing its impurities; it also prevents humid air from entering the pipe and causing the alumina powder in the discharge pipe to become damp and sticky.

[0007] Furthermore, the blocking plate mechanism is hinged on the mounting support via an ear seat.

[0008] Furthermore, the ear seat includes an ear plate fixed on the mounting support and a support shaft passing through the ear plate, the lower end of the blocking plate mechanism is connected to the support shaft, and the support shaft is rotatably matched with the lower end of the ear plate and / or the blocking plate mechanism.

[0009] Furthermore, a shaft sleeve is provided at a position of the ear plate away from the supporting shaft, and the telescopic end of the driving mechanism is inserted into the shaft sleeve and slidably cooperates with the shaft sleeve.

[0010] Furthermore, the driving mechanism is a cylinder, and the telescopic end of the cylinder is hinged to the blocking plate mechanism through a connecting plate structure.

[0011] Furthermore, the connecting plate structure includes a connecting plate, and pins are respectively provided at both ends of the connecting plate for respectively hingedly connecting the blocking plate mechanism and the telescopic end of the cylinder.

[0012] Furthermore, the blocking plate mechanism includes a bracket connected to the mounting support and the driving mechanism and a blocking component connected to the bracket.

[0013] Furthermore, the blocking assembly includes a shell and a blocking plate movably disposed in the shell, and a limiting structure is provided between the blocking plate and the shell.

[0014] Furthermore, a blocking plate slide groove for accommodating the blocking plate and allowing the blocking plate to slide forward and backward is provided in the shell, and the limiting structure includes a guide shaft connected to the rear side of the blocking plate, and the guide shaft is slidably arranged in the shell.

[0015] Furthermore, the limiting structure also includes a compression spring sleeved on the outside of the guide shaft, and two ends of the compression spring are respectively in contact with the blocking plate and the shell.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model promotes the rotation of the blocking plate mechanism through the telescopic mechanism, so that the blocking plate mechanism can be easily switched between closing and opening the discharge pipe;

[0018] 2. The utility model arranges a compression spring in the blocking plate mechanism to cause the blocking plate to press the pipe opening of the discharge pipe tightly, thereby achieving a sealing effect;

[0019] 3. The utility model improves the level of production mechanization and automation through the plugging plate mechanism that automatically blocks the pipe opening, reduces the waste of compressed air, achieves dust prevention, reduces complicated operations at work, and improves unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a side structural schematic diagram of the utility model.

[0023] The reference numerals in the figure are: 1. thin cylinder, 2. connecting shaft, 3. connecting plate structure, 4. ear seat, 5. blocking plate mechanism, 6. mounting support, 7. unloading pipe, 3-1. connecting plate, 3-2. pin shaft, 4-1. ear plate, 4-2. bushing, 4-3. supporting shaft, 4-4. limit block, 5-1. bracket, 5-2. blocking plate slide groove, 5-3. blocking plate, 5-4. guide shaft, 5-5. guide tube, 5-6. compression spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1As shown, an automatic plugging device for an alumina conveying discharge pipe described in Example 1 of the utility model includes a mounting support 6 arranged on one side of the discharge pipe 7, and a rotatable plugging plate mechanism 5 is hinged on the mounting support 6, and the plugging plate mechanism 5 can switch between closing or moving away from the discharge pipe 7 by rotation. A driving mechanism is provided on the mounting support 6, and the telescopic end of the driving mechanism is used to push the plugging plate mechanism 5 to rotate, so that the plugging plate mechanism 5 can close the discharge pipe 7 or move away from the discharge pipe 7. When the plugging plate mechanism 5 is away from the discharge pipe 7, the discharge pipe 7 can be discharged normally. When the plugging plate mechanism 5 closes the discharge pipe 7, dust and powder in the air are prevented from entering the alumina storage bin through the discharge pipe, thereby increasing its impurities; it also prevents humid air from entering the inside of the pipe and causing the alumina powder in the discharge pipe to become damp and sticky.

[0026] Embodiment 2 differs from Embodiment 1 in that the blocking plate mechanism 5 is hinged to the mounting support 6 via the ear seat 4 .

[0027] Furthermore, if Figure 1 As shown, the ear seat 4 includes an ear plate 4-1 fixed on the mounting support 6 and a support shaft 4-3 passing through the ear plate 4-1, and the lower end of the blocking plate mechanism 5 is connected to the support shaft 4-3. In this embodiment, two parallel ear plates 4-1 are fixed on the mounting support 6, the support shaft 4-3 passes through the ear plate 4-1 and is close to one end of the blocking plate mechanism 5, the lower end of the blocking plate mechanism 5 extends between the two ear plates 4-1, and the support shaft 4-3 also passes through the lower end of the blocking plate mechanism 5. And the support shaft 4-3 is rotatably matched with one or both of the ear plate 4-1 and the blocking plate mechanism 5, so that the blocking plate mechanism 5 is rotatably connected to the ear seat 4 through the support shaft 4-3.

[0028] Embodiment 3 is different from Embodiment 2 in that Figure 2 As shown, the driving mechanism is a cylinder 1, and the telescopic end of the cylinder 1 is hinged to the blocking plate mechanism 5 through the connecting plate structure 3, that is, both ends of the connecting plate structure 3 are hingedly connected to the blocking plate mechanism 5 and the telescopic end of the cylinder 1. The ear plate 4-1 is provided with a shaft sleeve 4-2 at a position away from the support shaft 4-3, and the driving mechanism, that is, the telescopic end of the cylinder 1, is inserted into the shaft sleeve 4-2 and slidably cooperates with the shaft sleeve 4-2. In this embodiment, the telescopic end of the cylinder 1 is a connecting shaft 2, and the connecting shaft 2 is a stepped shaft with threaded holes and connecting holes at the front and rear ends, which are respectively used to connect with the cylinder 1 and the connecting plate structure 3.

[0029] Furthermore, if Figure 2As shown, the connecting plate structure 3 includes a connecting plate 3-1, and pins 3-2 are respectively provided at both ends of the connecting plate 3-1 for respectively hingedly connecting the blocking plate mechanism 5 and the telescopic end of the cylinder 1. The pin 3-2 at one end of the connecting plate 3-1 close to the cylinder 1 passes through the connection hole on the connecting shaft 2 to be connected with the telescopic end of the cylinder 1. The pin 3-2 at one end of the connecting plate 3-1 close to the blocking plate mechanism 5 passes through the lower end of the blocking plate mechanism 5 and away from the support shaft 4-3, so that the telescopic end of the cylinder 1 can be extended and retracted forward and backward, and the blocking plate mechanism 5 is pushed to rotate around the support shaft 4-3 through the connecting plate structure 3.

[0030] Embodiment 4 is different from Embodiment 3 in that Figure 2 As shown, the blocking plate mechanism 5 includes a bracket 5-1 and a blocking assembly connected to the upper end of the bracket 5-1. The bracket 5-1 is arranged at the lower side of the blocking assembly, and the support shaft 4-3 of the ear seat 4 on the mounting support 6 is passed through the bracket 5-1 to be hingedly connected to the blocking plate mechanism 5. One of the pin shafts 3-2 of the connecting plate structure 3 is passed through the bracket 5-1 to connect the driving mechanism and the blocking plate mechanism 5.

[0031] Embodiment 5 is different from Embodiment 4 in that Figure 2 As shown, the blocking assembly includes a shell and a blocking plate 5-3 movably arranged in the shell, and the blocking plate 5-3 is used to fit and close the pipe opening of the discharge pipe 7. A limiting structure is provided between the blocking plate 5-3 and the shell, so that the blocking plate 5-3 can move within a certain limited range.

[0032] Furthermore, if Figure 2 As shown, the outer shell is provided with a blocking plate slide groove 5-2 for accommodating the blocking plate 5-3 and allowing the blocking plate 5-3 to slide back and forth near the discharge pipe 7, and the limiting structure includes a guide shaft 5-4 connected to the rear side of the blocking plate 5-3, and the guide shaft 5-4 is slidably arranged in the outer shell.

[0033] Furthermore, the position limiting structure also includes a compression spring 5-6 sleeved on the outside of the guide shaft 5-4, and the two ends of the compression spring 5-6 are respectively in contact with the blocking plate 5-3 and the housing. In addition, a guide tube 5-5 is also provided on the rear side of the blocking plate 5-3 and is coaxially arranged with the guide shaft 5-4. The guide tube 5-5 is sleeved on the outside of the compression spring 5-6. In addition, the guide tube 5-5 also slidably cooperates with the housing.

[0034] Embodiment 6 is different from Embodiment 2 in that Figure 2 As shown, a limit block 4 - 4 is further provided between the two ear plates 4 - 1 , and the limit block 4 - 4 is located below the blocking plate mechanism 5 , and is used to limit the lowest angle of the blocking plate mechanism 5 to rotate downward.

[0035] The working process of the utility model is as follows:

[0036] When conveying alumina materials, the thin cylinder 1 stretches forward, the connecting shaft drives the connecting plate structure 3 to rotate the bracket of the blocking plate mechanism 5, and the limited block 4-4 constrains the blocking plate mechanism 5 to be in a horizontal state, and the discharge pipe 7 conveys alumina materials. After the tank truck is finished, the connecting shaft 2 of the cylinder 1 retreats, and the blocking plate mechanism 5 rotates 90° from the horizontal state to the vertical state. When the blocking plate mechanism 5 contacts the discharge pipe mouth 7, the compression spring 5-6 shrinks, and the spring elastic force can compensate for the installation error of the device. The elastic force and the negative pressure of the alumina storage bin make the blocking plate 5-3 fit closely to the pipe mouth of the discharge pipe 7, so as to achieve the blocking effect of the discharge pipe 7. The alumina conveying equipment is provided with a photoelectric switch for detecting the tank truck. When the photoelectric switch detects that the tank truck is docking with the material pipe, the plc solenoid valve connected to the photoelectric switch controls the cylinder to make the blocking plate mechanism 5 rotate to open the pipe mouth of the discharge pipe 7; when the photoelectric switch detects that the tank truck leaves after flushing the tank, the blocking plate mechanism 5 automatically closes the discharge pipe 7 to prevent the waste of negative pressure and compressed air. The device can improve the level of production mechanization and automation, reduce the waste of compressed air, achieve dust prevention, reduce complicated operations at work, and improve unloading efficiency.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that any modification to the technical solutions described in the aforementioned embodiments, or any equivalent replacement of some or all of the technical features therein, within the spirit and principles of the present invention, and such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An automatic plugging device for an alumina conveying and unloading pipe, characterized in that: The utility model comprises a mounting support (6) arranged on one side of a discharge pipe (7), a rotatable blocking plate mechanism (5) being hingedly connected to the mounting support (6), and a driving mechanism for driving the blocking plate mechanism (5) to rotate and close or move away from the discharge pipe (7) is provided on the mounting support (6).

2. The automatic plugging device for alumina conveying and unloading pipe according to claim 1 is characterized in that: The blocking plate mechanism (5) is hinged on the mounting support (6) via the ear seat (4).

3. The automatic plugging device for alumina conveying and unloading pipe according to claim 2 is characterized in that: The ear seat (4) comprises an ear plate (4-1) fixed on a mounting support (6) and a support shaft (4-3) passing through the ear plate (4-1); the lower end of the blocking plate mechanism (5) is connected to the support shaft (4-3), and the support shaft (4-3) is rotatably matched with the lower end of the ear plate (4-1) and / or the blocking plate mechanism (5).

4. The automatic plugging device for alumina conveying and unloading pipe according to claim 3 is characterized in that: A shaft sleeve (4-2) is provided at a position of the ear plate (4-1) away from the support shaft (4-3), and the telescopic end of the driving mechanism is inserted into the shaft sleeve (4-2) and is slidably matched with the shaft sleeve (4-2).

5. The automatic plugging device for alumina conveying and unloading pipe according to claim 3 or 4, characterized in that: The driving mechanism is a cylinder (1), and the telescopic end of the cylinder (1) is hingedly connected to the blocking plate mechanism (5) via a connecting plate structure (3).

6. The automatic plugging device for alumina conveying and unloading pipe according to claim 5 is characterized in that: The connecting plate structure (3) comprises a connecting plate (3-1), and pins (3-2) are respectively provided at both ends of the connecting plate (3-1) for respectively hingedly connecting the blocking plate mechanism (5) and the telescopic end of the cylinder (1).

7. The automatic plugging device for alumina conveying and unloading pipe according to any one of claims 1 to 4 or 6, characterized in that: The blocking plate mechanism (5) comprises a bracket (5-1) connected to a mounting support (6) and a driving mechanism, and a blocking component connected to the bracket (5-1).

8. The automatic plugging device for alumina conveying and unloading pipe according to claim 7 is characterized in that: The blocking component comprises a shell and a blocking plate (5-3) movably arranged in the shell, and a limiting structure is provided between the blocking plate (5-3) and the shell.

9. The automatic plugging device for alumina conveying and unloading pipe according to claim 8, characterized in that: The shell is provided with a blocking plate slide groove (5-2) for accommodating the blocking plate (5-3) and allowing the blocking plate (5-3) to slide forward and backward, and the limiting structure comprises a guide shaft (5-4) connected to the rear side of the blocking plate (5-3), and the guide shaft (5-4) is slidably arranged in the shell.

10. The automatic plugging device for alumina conveying and unloading pipe according to claim 9, characterized in that: The limiting structure also includes a compression spring (5-6) sleeved on the outside of the guide shaft (5-4), and two ends of the compression spring (5-6) are respectively in contact with the blocking plate (5-3) and the outer shell.

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