Sealing and pressing device for plate filter

Abstract

The utility model provides a sealing and pressing device for a plate filter, and belongs to the field of transportation. The plate filter sealing and pressing device is composed of a first supporting plate, a second supporting plate, a base plate, a pressing piece, a first bolt, a second bolt, a sealing gasket and a sealing lip. The sealing and pressing device for the plate filter can effectively solve the sealing stability of the filter, the problem of oil leakage caused by uneven paper feeding of filter paper can be avoided by adjusting the device, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of filters, and in particular relates to a sealing and pressing device for a plate-type filter. Background Art

[0002] During the manufacturing process, rolling oil and emulsion are repeatedly recycled on the metal rolling production line. In this process, the cleanliness of the oil is crucial to equipment operation and product quality. To ensure the cleanliness of the oil, the recovered oil will be purified and filtered before entering the clean oil tank for standby.

[0003] Among the equipment for filtering oil, plate filters are widely used in the filtration of rolling oil. The filter converts the dirty oil in the dirty oil tank into clean oil after it penetrates the filter paper through pressure. The filter paper is attached to the upper surface of the chain bed under pressure and synchronized with the chain bed. The filter chain bed is high at both ends and low in the middle, similar to a ship shape. Sealing strips are provided at the transition between the box body and the filter paper on both sides of the filter. In order to meet the requirements of the sealing strip curve, several steel sheets are overlapped and pressed on the back of the seal to serve as the sealing strip skeleton. The sealing strip is fixed to the edge of the box body by bolts to tighten the steel sheet. The lip of the sealing strip is pressed on the filter paper by the elastic force of the steel sheet to achieve the sealing effect, and the filter paper is flat to prevent it from falling out. The original design used bolts to press one end of the sealing strip against the steel sheet, and the other end was pressed by the deformation elastic force of the steel sheet. This sealing structure has poor stability. The thickness, bending angle, and forming method of the steel sheet need to be precisely controlled to cooperate with the bolt pressing force to achieve a better sealing effect. In actual operation, if the bolts are tightened a little, the filter paper will not move smoothly, fall out, or stop moving; if the bolts are loosened a little, there will be leakage, sealing strips and steel sheets will fall off, etc. No matter which abnormal situation, it will affect the cleanliness of the rolling oil, which will affect the control valve action and oil injection of various parts of the equipment at the least, and directly affect the surface quality of the product at the worst, causing huge economic losses to the company.

[0004] Therefore, it is urgent to design a plate filter sealing and pressing device with good sealing effect, low cost, high stability and high oil filtering efficiency. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a plate filter sealing and clamping device, which is used to solve the problems of poor sealing stability and effect of the plate filter, inability of the filter paper to move normally and stably, resulting in leakage, oil spraying, and insufficient oil cleanliness, thereby improving oil filtration efficiency, improving product quality, and reducing economic losses.

[0006] To achieve the above object, the utility model is provided as follows: a sealing and pressing device for a plate filter, the plate filter comprising an upper cavity, a pad being horizontally arranged on the inner side wall of the upper cavity, characterized in that it comprises a first support plate, a second support plate, a pressing sheet, a first bolt, a second bolt and a sealing gasket;

[0007] The first support plate and the second support plate are multiple and are arranged at intervals along the front-to-back direction of the upper cavity;

[0008] The sealing gasket is arranged in a Z shape, the upper end of the sealing gasket is arranged on the pad, and the lower end of the sealing gasket is arranged at the bottom of the upper cavity;

[0009] The shape of the compression sheet is adapted to the sealing gasket and is arranged on the sealing gasket;

[0010] The first bolt is vertically arranged on the first supporting plate, and the lower end of the first bolt is downwardly arranged and pressed against the upper ends of the pressing sheet and the sealing gasket;

[0011] The second bolt is vertically arranged on the second supporting plate, and the lower end of the second bolt is downwardly arranged and pressed against the lower ends of the pressing sheet and the sealing gasket;

[0012] The lower end of the sealing pad extends toward the middle of the upper cavity to form a sealing lip.

[0013] The utility model is further configured as follows: the support plate includes a first support plate and a second support plate, the first support plate and the second support plate are multiple and are staggered along the front-to-back direction of the upper cavity, the first bolt is arranged on the first support plate, and the second bolt is arranged on the second support plate.

[0014] Such a structural design can better control the force applied to the compression plate.

[0015] The utility model is further configured as follows: the length of the first support plate is smaller than the length of the second support plate, and the length of the first bolt is smaller than the length of the second bolt.

[0016] Such structural design can further improve the sealing effect and the stability of force.

[0017] The utility model is further configured as follows: one end of the first support plate and the second support plate are both welded in the upper cavity.

[0018] Such a structural design can better fix the first support plate and the second support plate.

[0019] The utility model is further configured as follows: the second support plates are arranged at a spacing of 150mm-200mm.

[0020] Such a structural design can better improve the sealing effect and ensure smooth filter paper feeding.

[0021] The utility model is further configured as follows: the lower end edge of the sealing pad is turned upward and covers the lower end edge of the pressing sheet.

[0022] Such a structural design can better isolate the gap of the compression plate and improve the sealing performance of the sealing gasket.

[0023] The utility model is further configured as follows: the material of the pressing sheet is steel.

[0024] Such a structural design can better increase the service life of the compression plate and improve stability.

[0025] Beneficial effects:

[0026] The utility model discloses a sealing and clamping device for a plate filter, which improves the sealing effect of a sealing lip by pressing a clamping plate and the lower end of a sealing pad downwardly through a second bolt, and prevents filter paper from being deviated due to uneven force, resulting in poor oil filtering effect, affecting the quality of purified oil, and ultimately damaging product quality and increasing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front sectional view of the sealing and clamping device of the plate filter;

[0028] Figure 2 It is a front cross-sectional view of the plate filter;

[0029] Figure 3 It is a side sectional view of a plate filter;

[0030] The reference numerals in the figure are as follows: first support plate 1, second support plate 2, backing plate 3, pressing plate 4, first bolt 5, second bolt 6, sealing gasket 7, sealing lip 8, filter paper 9, roller 10, chain bed 11, clean oil chamber 12. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0032] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] like Figure 1-2 As shown, the utility model discloses a sealing and pressing device for a plate filter, the plate filter comprises an upper cavity, a gasket 3 is horizontally arranged on the inner side wall of the upper cavity, and comprises a first support plate 1, a second support plate 2, a pressing sheet 4, a first bolt 5, a second bolt 6 and a sealing gasket 7;

[0034] There are multiple first support plates 1 and second support plates 2 and they are spaced apart along the front-to-back direction of the upper cavity; the sealing gasket 7 is arranged in a Z shape, the upper end of the sealing gasket 7 is arranged on the pad 3, and the lower end of the sealing gasket 7 is arranged at the bottom of the upper cavity; the shape of the clamping plate 4 is adapted to the sealing gasket 7 and is arranged on the sealing gasket 7; the first bolt 5 is vertically arranged on the first support plate 1, and the lower end of the first bolt 5 is arranged downward and pressed against the upper end of the clamping plate 4 and the sealing gasket 7; the second bolt 6 is vertically arranged on the second support plate 2, and the lower end of the second bolt 6 is arranged downward and pressed against the lower end of the clamping plate 4 and the sealing gasket 7; the lower end of the sealing gasket 7 extends toward the middle of the upper cavity and forms a sealing lip 8.

[0035] The sealing and pressing working principle of the utility model when filtering dirty oil is as follows:

[0036] The filter paper 9 passes through the roller 10 and enters the chain bed 11 smoothly. In this process, since the chain bed 11 and the clean oil tank at the lower end are in a sealed state, negative pressure is applied in the clean oil chamber 12 through professional equipment. The dirty oil is accelerated to pass through the filter paper 9 after being subjected to its own gravity and additional downward suction. In this process, the clamping plate 4 is fixed by the first bolt 5 of the first support plate 1, and the downward pressure on the lower end of the clamping plate 4 is adjusted by rotating the second bolt 6 set on the second support plate 2 to ensure that the filter paper 9 can be smoothly fed after the filtering capacity is reduced, to avoid the filter paper 9 and the sealing gasket 7 from falling out, resulting in sealing failure and oil leakage, and finally completing the normal replacement of the filter paper 9.

[0037] In summary, the utility model invention fixes the clamping plate by the first bolt of the first support plate, and then applies downward pressure to the lower end of the clamping plate by rotating the second bolt arranged on the second support plate, thereby solving the problems of oil leakage and unstable filter paper feeding caused by uncontrollable sealing effect during the filtration process, thereby improving production efficiency and reducing production costs.

[0038] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A sealing and pressing device for a plate filter, the plate filter comprising an upper cavity, a pad being horizontally arranged on the inner side wall of the upper cavity, characterized in that: It includes a first support plate, a second support plate, a pressing sheet, a first bolt, a second bolt and a sealing gasket; The support plates are multiple and are arranged at intervals along the front-to-back direction of the upper cavity; The sealing gasket is arranged in a Z shape, the upper end of the sealing gasket is arranged on the pad, and the lower end of the sealing gasket is arranged at the bottom of the upper cavity; The shape of the compression sheet is adapted to the sealing gasket and is arranged on the sealing gasket; The first bolt is vertically arranged on the support plate, and the lower end of the first bolt is downwardly arranged and pressed against the upper ends of the pressing sheet and the sealing gasket; The second bolt is vertically arranged on the support plate, and the lower end of the second bolt is downwardly arranged and pressed against the lower ends of the pressing sheet and the sealing gasket; The lower end of the sealing pad extends toward the middle of the upper cavity to form a sealing lip.

2. The plate filter sealing and pressing device according to claim 1, characterized in that: The support plate includes a first support plate and a second support plate, the first support plate and the second support plate are multiple and staggered along the front-to-back direction of the upper cavity, the first bolt is arranged on the first support plate, and the second bolt is arranged on the second support plate.

3. The plate filter sealing and pressing device according to claim 2 is characterized in that: The length of the first support plate is smaller than that of the second support plate, and the length of the first bolt is smaller than that of the second bolt.

4. The plate filter sealing and pressing device according to claim 2, characterized in that: One end of each of the first support plate and the second support plate is welded in the upper cavity.

5. The plate filter sealing and pressing device according to claim 2, characterized in that: The second support plates are arranged at a spacing of 150mm-200mm.

6. The plate filter sealing and pressing device according to claim 1, characterized in that: The lower end edge of the sealing pad is turned upward and covers the lower end edge of the pressing sheet.

7. The plate filter sealing and pressing device according to claim 1, characterized in that: The material of the pressing sheet is steel.

Images