Abnormal detection device for vertical disc distribution head

Abstract

The utility model discloses an abnormity detection device for a vertical disc distribution head. The abnormity detection device comprises a shell arranged between a distribution pad and a contact surface of the distribution head, the shell is provided with openings in the two ends, the opening in one end of the shell is connected to the distribution pad in a sleeving mode and makes sealing contact with the distribution pad, the opening in the other end of the shell is rotationally connected with the distribution head through a sealing bearing, the shell, the distribution pad and the distribution head define a closed cavity, and a liquid indicator stretching into the cavity is arranged over the outer wall of the shell. The lower end of the liquid indicator extending into the cavity is correspondingly communicated with a deformation balloon, and the liquid indicator and the deformation balloon are filled with high-viscosity liquid. The device is simple in structure and convenient to use, abnormal leakage can be rapidly detected, a certain sealing protection effect can be achieved, and equipment shutdown is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical disc filters, in particular to an abnormality detection device for a vertical disc distribution head. Background Art

[0002] The disc filter uses the suction effect of a vacuum pump to form a filter cake of solid particles on the filter cloth, and then the moisture in the filter cake is pumped out through the filter cloth to the steam-water separator, thereby achieving the purpose of solid-liquid separation. As the key equipment in the decomposition and filtration process of the alumina plant, the production performance of the disc filter directly affects the indicators and production capacity of the entire alumina production process. However, during the use of the disc filter, it was found that the distribution head of the disc filter is prone to leakage. The leakage of the distribution head of the disc filter causes a significant reduction in the efficiency of the equipment, and most of the feed pump does useless work. The production capacity of the disc filter is greatly reduced, and the production cost is greatly increased.

[0003] The patent with authorization announcement number CN202844726U discloses a structure for protecting the distribution head of a vacuum vertical disc filter. A gray cast iron friction pad is added between the distribution head and the distribution pad according to the diameter and height of the distribution head. That is, there is dynamic friction between the distribution head and the distribution pad. Friction damage and leakage are easy to occur here, and personnel need to check regularly. If there is a leak, it will seriously affect the use of the entire vertical disc or even shut down the machine, causing great hidden dangers to the production of the alumina filtration process. Therefore, an abnormality detection device for the vertical disc distribution head is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an abnormality detection device for a vertical disk distribution head. The device has a simple structure, is easy to use, can quickly detect abnormal leakage, and can also play a certain sealing protection role, reduce equipment downtime, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical plate dispensing head abnormality detection device, comprising a shell installed between a dispensing pad and a contact surface of the dispensing head; the shell has openings at both ends, one end opening of the shell is sleeved on the dispensing pad and in sealing contact with it, and the other end opening of the shell is rotatably connected to the dispensing head through a sealing bearing, the shell and the dispensing pad and the dispensing head form a closed chamber, a liquid indicator extending into the chamber is provided directly above the outer wall of the shell, and the lower end of the liquid indicator extending into the chamber is correspondingly connected to a deformable balloon, and the liquid indicator and the deformable balloon are filled with a high-viscosity liquid.

[0006] Preferably, the shell includes two symmetrically arranged semicircular plates, one side of the semicircular plate is provided with an arc-shaped end plate, the inner sides of the two arc-shaped end plates form circular holes for the distribution pad to pass through, and the two side ends of the semicircular plate and the arc-shaped end plate are provided with L-shaped connecting plates, and the two corresponding upper and lower connecting plates are connected accordingly by a bolt and nut group.

[0007] Preferably, a sealing ring is provided between the two arc-shaped end plates and the outer wall of the distribution pad, and a sealing gasket is provided between two upper and lower corresponding connecting plates.

[0008] Preferably, the outer wall of the shell is provided with a through hole for the liquid indicator to pass through, and a sealant is filled between the liquid indicator and the through hole.

[0009] Preferably, the surface of the liquid indicator is provided with scale values.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a shell at the position of the dynamic friction surface between the distribution pad and the distribution head, the shell is provided with a liquid indicator, and a deformation balloon is provided in the chamber of the shell, the deformation balloon is connected to the liquid indicator and filled with high-viscosity liquid, that is, when the dynamic friction surface between the distribution pad and the distribution head is damaged by friction and leakage occurs, the suction negative pressure makes the deformation balloon larger and the liquid level in the liquid indicator decreases, or the purge positive pressure makes the deformation balloon smaller and the liquid level in the liquid indicator increases, so that abnormal leakage can be quickly detected, and the shell can also play a certain sealing role, with a simple structure and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the utility model;

[0013] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0014] In the figure: 1 distribution pad, 2 liquid indicator, 3 shell, 3.1 semicircular plate, 3.2 bolt and nut group, 3.3 connecting plate, 3.4 arc-shaped end plate, 4 distribution head, 5 sealing bearing, 6 deformation balloon, 7 chamber. DETAILED DESCRIPTION

[0015] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0016] See also Figure 1-3The utility model provides a technical solution: a vertical plate distribution head abnormality detection device, comprising a shell 3 installed between the distribution pad 1 and the distribution head 4 contact surface; the shell 3 has two openings, one end opening of the shell 3 is sleeved on the distribution pad 1 and in sealing contact with it, and the other end opening of the shell 3 is rotatably connected with the distribution head 4 through a sealing bearing 5, and the shell 3, the distribution pad 1, and the distribution head 4 form a closed chamber 7, and a liquid indicator 2 extending into the chamber 7 is provided just above the outer wall of the shell 3, and the lower end of the liquid indicator 2 extending into the chamber 7 is correspondingly connected with a deformable balloon 6, and the liquid indicator 2 and the deformable balloon 6 are filled with high-viscosity liquid;

[0017] It can be understood that by arranging the shell 3 at the position of the dynamic friction surface between the distribution pad 1 and the distribution head 4, the shell 3 is provided with a liquid indicator 2, and the chamber of the shell 3 is provided with a deformable balloon 6, the deformable balloon 6 is connected with the liquid indicator 2 and filled with a high-viscosity liquid, that is, when the dynamic friction surface between the distribution pad 1 and the distribution head 4 is damaged by friction and leakage occurs, the suction negative pressure makes the deformable balloon enlarged and the liquid level in the liquid indicator 2 decreases, or the purge positive pressure makes the deformable balloon 6 smaller and the liquid level in the liquid indicator 2 increases, so that abnormal leakage can be quickly detected;

[0018] Furthermore, the housing 3 includes two symmetrically arranged semicircular plates 3.1, one side of the semicircular plate 3.1 is provided with an arc-shaped end plate 3.4, and the inner sides of the two arc-shaped end plates 3.4 form a circular hole for the distribution pad 1 to pass through, and both ends of the semicircular plate 3.1 and the arc-shaped end plate 3.4 are provided with L-shaped connecting plates 3.3, and the two corresponding upper and lower connecting plates 3.3 are connected correspondingly by bolt and nut groups 3.2; the housing 3 is arranged in a split type and connected by bolt and nut groups 3.2, in order to facilitate disassembly and installation, and also facilitate the later maintenance of the distribution pad 1 and the distribution head 4;

[0019] Furthermore, a sealing ring is provided between the two arc-shaped end plates 3.4 and the outer wall of the distribution pad 1, and a sealing gasket is provided between the two upper and lower corresponding connecting plates 3.3, that is, by adding a sealing ring and a sealing gasket between the contact surfaces, the sealing effect of the chamber 7 is ensured, the influence of the external air pressure is avoided, and the accuracy of the detection is ensured;

[0020] In addition, the outer wall of the shell 3 is provided with a through hole for the liquid indicator 2 to pass through, and the space between the liquid indicator 2 and the through hole is filled with sealant; the surface of the liquid indicator 2 is provided with scale values ​​for easy viewing.

[0021] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended to include all changes that fall within the meaning and scope of equivalent elements in the content of the present invention.

Claims

1. A device for detecting abnormality of a vertical plate dispensing head, characterized in that: The invention comprises a shell (3) installed between the contact surfaces of a distribution pad (1) and a distribution head (4); the shell (3) has two openings at both ends, one opening of the shell (3) is sleeved on the distribution pad (1) and in sealing contact therewith, and the other opening of the shell (3) is rotatably connected to the distribution head (4) via a sealing bearing (5); the shell (3), the distribution pad (1) and the distribution head (4) form a closed chamber (7); a liquid indicator (2) extending into the chamber (7) is provided directly above the outer wall of the shell (3); the lower end of the liquid indicator (2) extending into the chamber (7) is correspondingly connected to a deformable balloon (6); and the liquid indicator (2) and the deformable balloon (6) are filled with a high-viscosity liquid.

2. The device for detecting abnormality of a vertical plate dispensing head according to claim 1, characterized in that: The housing (3) comprises two symmetrically arranged semicircular plates (3.1), one side of the semicircular plate (3.1) is provided with an arc-shaped end plate (3.4), the inner sides of the two arc-shaped end plates (3.4) form a circular hole for the distribution pad (1) to pass through, and both side ends of the semicircular plate (3.1) and the arc-shaped end plate (3.4) are provided with L-shaped connecting plates (3.3), and the two upper and lower corresponding connecting plates (3.3) are connected correspondingly by a bolt and nut set (3.2).

3. The device for detecting abnormality of a vertical plate dispensing head according to claim 2, characterized in that: A sealing ring is provided between the two arc-shaped end plates (3.4) and the outer wall of the distribution pad (1), and a sealing pad is provided between the two upper and lower corresponding connecting plates (3.3).

4. The device for detecting abnormality of a vertical plate dispensing head according to claim 1, characterized in that: The outer wall of the housing (3) is provided with a through hole for the liquid indicator (2) to pass through, and a sealant is filled between the liquid indicator (2) and the through hole.

5. The device for detecting abnormality of a vertical plate dispensing head according to claim 1, characterized in that: The surface of the liquid indicator (2) is provided with scale values.

Images