Opening and closing type feed port sealing structure

Abstract

The utility model discloses an open-close type feed port sealing structure which comprises a feed port located at the top end of a filter plate, the feed port extends to the upper portion of the filter plate, feed ports are formed in the positions, located on the two sides of the filter plate, of the tail end of the feed port, and the positions, located on the feed port sides, of the filter plate are connected with sealing assemblies through fixing bolts. The sealing assembly is used for sealing the feeding port. According to the utility model, through the design of the sealing assembly, particularly the position of the feeding turning cover plate is flush with the position of the feeding port, the feeding channel can be fully opened when the feeding port is opened, and compared with the situation that an upper feeding port opening and closing device cannot fully open the feeding channel in the prior art, the feeding blocking is greatly reduced, and the feeding efficiency is improved. The feeding speed can be effectively improved, so that the working efficiency of the whole filtering equipment is improved.

Description

Technical Field

[0001] This utility model relates to an openable feed inlet closure structure. Background Technology

[0002] With industrial advancements, filtration technology has evolved from early methods using simple filter cloths or screens to more efficient and faster filtration equipment, such as plate and frame filter presses and chamber filter presses. The filter plate, as a core component of these devices, directly impacts filtration efficiency and the final result.

[0003] Center feeding is the most common feeding method for filter plates. It allows the material to be evenly distributed on the filter plate surface, which helps improve filtration efficiency and filter cake uniformity. It also reduces the possibility of material accumulating at the filter plate edges, lowering the risk of clogging. However, center feeding requires more complex piping and sealing designs, increasing equipment costs and maintenance difficulty. Material entering from the center may also cause pressure loss, affecting filtration speed.

[0004] Therefore, in many cases, top feeding can effectively compensate for these drawbacks. However, unlike intermediate feeding, top feeding requires an opening and closing device at the feed inlet to ensure that feeding efficiency is not affected during feeding and that the feed inlet is sealed during the pressing process.

[0005] The existing top feed inlet opening and closing device cannot fully open the feed channel when it is opened, resulting in limited feed speed; when it is closed, there may be a problem with the seal, causing material leakage, affecting the filtration effect, and even potentially polluting the working environment.

[0006] Therefore, a closed structure for the openable feed inlet is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide an openable feed inlet sealing structure to solve the problem mentioned in the background art that the existing upper feed inlet opening and closing device cannot fully open the feed channel and may have poor sealing.

[0008] To solve the above technical problems, this utility model provides the following technical solution: an openable feed inlet sealing structure, including a feed hole located at the top of a filter plate, the feed hole extending to the upper part of the filter plate, and feed inlets located on both sides of the feed hole at its tail end. A sealing assembly is connected to the filter plate on the feed inlet side by fixing bolts.

[0009] The sealing component is used to block the feed inlet.

[0010] Preferably, the sealing assembly includes a fixing seat, a spring steel plate is provided at the fixing seat, and a feed flap is provided on the side of the spring steel plate away from the filter plate, and the feed flap is flush with the feed inlet.

[0011] Preferably, the fixing seat has a fixing hole, and the fixing hole cooperates with the fixing bolt so that the fixing bolt passes through the fixing hole to connect the fixing seat to the filter plate side.

[0012] Preferably, the spring steel plate is connected to the fixing seat by screws, and two sets of screw holes are provided on the upper part of the spring steel plate. The two sets of screw holes cooperate with the screws so that the screws pass through the screw holes to connect the spring steel plate to the fixing seat.

[0013] Preferably, the spring steel plate has a plug weld hole below the nail hole, and the number of plug weld holes is one, and the plug weld holes are centrally symmetrical.

[0014] Preferably, the spring steel plate is welded to the feed flap plate through plug weld holes.

[0015] Preferably, the outer periphery of the feed flap away from the spring steel plate is rounded.

[0016] Preferably, the thickness of the spring steel plate is 0.5-2mm.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model, through its enclosed component design, particularly the flush positioning of the feed inlet flap with the feed port, ensures that the feed port can fully open the feed channel when opened. Compared to existing technologies where the upper feed port opening and closing device cannot fully open the feed channel, this greatly reduces obstruction to the feed, effectively increases the feed speed, and thus improves the overall efficiency of the filtration equipment.

[0019] The sealing assembly is connected to the filter plate side by fixing bolts. When the feed inlet is closed, the spring steel plate and the feed flap can fit tightly against the feed inlet, so that the sealing performance is effectively guaranteed.

[0020] In contrast to existing technologies where incomplete sealing during closure can lead to material leakage, this patented technology effectively prevents material leakage. This not only ensures the smooth operation of the filtration process and the quality of the filtration effect, but also prevents potential pollution of the working environment caused by material leakage, thus contributing to maintaining a clean and safe production environment.

[0021] Meanwhile, because spring steel sheets themselves have good elasticity, they can prevent plastic deformation when subjected to heavy loads; they also have high fatigue strength, enabling them to have a long service life under repeated loads; and they also have sufficient toughness and plasticity to prevent sudden brittle fracture under impact.

[0022] To ensure feeding efficiency, the feed flap needs to open as wide as possible under feeding pressure, but it must not undergo elastic deformation or breakage, otherwise the feed flap will not be able to return to its initial position after feeding, affecting the sealing of the feed inlet. Therefore, a thin spring steel sheet is used, and a stainless steel plate is spot-welded onto it to ensure the strength level of the feed flap.

[0023] Since both are made of stainless steel, the filter cloth will be severely damaged during the feeding or pressing process. Chamfering and rounding the edges of the feed flap that contacts the filter cloth can greatly reduce the damage to the filter cloth. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0026] Figure 3 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the closed component structure according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the spring steel plate structure according to an embodiment of the present utility model.

[0029] In the diagram: 1. Filter plate; 2. Feed hole; 3. Feed inlet; 4. Fixing bolt; 5. Sealing assembly; 51. Fixing base; 52. Spring steel plate; 53. Feed flip cover plate; 54. Fixing hole; 55. Screw; 56. Nail hole; 57. Plug welding hole. Detailed Implementation

[0030] To address the problems of existing top feed inlet opening and closing devices failing to fully open the feed channel and potentially resulting in incomplete sealing, this utility model provides an opening and closing feed inlet sealing structure. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Please see Figure 1-5 This utility model provides an openable feed inlet 3 sealing structure, including a feed hole 2 located at the top of a filter plate 1, the feed hole 2 extending to the upper part of the filter plate 1, and feed inlets 3 located on both sides of the feed hole 2 at the tail end of the feed hole 2. A sealing assembly 5 is connected to the filter plate 1 on the side of the feed inlet 3 by fixing bolts 4. The sealing assembly 5 includes a fixing seat 51, a spring steel plate 52 is provided at the fixing seat 51, and a feed flip-top plate 53 is provided on the side of the spring steel plate 52 away from the filter plate 1, and the feed flip-top plate 53 is flush with the feed inlet 3. A fixing hole 54 is provided at the fixing seat 51, and the fixing hole 54 cooperates with the fixing bolt 4 so that the fixing bolt 4 passes through the fixing hole 54 to connect the fixing seat 51 to the side of the filter plate 1. The spring steel plate 52 is connected to the fixing base 51 by screws 55. Two sets of screw holes 56 are provided on the upper part of the spring steel plate 52. These screw holes 56 engage with the screws 55, allowing the screws to pass through and connect the spring steel plate 52 to the fixing base 51. Below the screw holes 56, the spring steel plate 52 has five plug weld holes 57, which are centrally symmetrical. The spring steel plate 52 is welded to the feed flap plate 53 through the plug weld holes 57. The thickness of the spring steel plate 52 is 0.5-2 mm.

[0032] The outer periphery of the feed flap 53 on the side away from the spring steel plate 52 is rounded.

[0033] The sealing component 5 is used to block the feed inlet 3.

[0034] The working principle of the openable / closing feed inlet sealing structure provided by this utility model is as follows:

[0035] In normal operation without feeding, the spring steel plate 52 and the feed flap 53 in the sealing assembly 5 are tightly fitted to the feed inlet 3 of the filter plate 1 under the action of their own elastic potential energy and gravity. Since the feed flap 53 is flush with the feed inlet 3, it can effectively cover the feed inlet 3, prevent the filtrate from leaking out, and ensure the airtightness of the pressing process.

[0036] When feeding begins, the material enters the filter plate 1 area through the feed hole 2. As the feeding pressure gradually increases, the material exerts an upward force on the feed flap 53.

[0037] When the feeding pressure is sufficient to overcome the elastic resistance of the spring steel plate 52, the feeding flap 53 will flip up along the connection point with the spring steel plate 52. Since the feeding flap 53 is connected to the spring steel plate 52, and the spring steel plate 52 is fixed on the fixed base 51, this structure allows the feeding flap 53 to open and close flexibly with the connection point between the fixed base 51 and the spring steel plate 52 as the fulcrum.

[0038] When the feed flap 53 is fully opened, its flush alignment with the feed inlet 3 and its upward tilt maximize the opening of the feed channel, allowing materials to enter the filter plate 1 quickly and smoothly for filtration, minimizing obstacles to feeding efficiency. Simultaneously, since the opening of the feed flap 53 is achieved by the feeding pressure, it automatically adapts to changes in feeding pressure, ensuring a stable feeding process.

[0039] After feeding is completed, the feeding pressure gradually decreases and disappears.

[0040] Due to its elastic properties, the spring steel plate 52 will automatically rebound after the feeding pressure is lost, and drive the feeding flip plate 53 back to the initial sealing position, re-close tightly to the feeding port 3, realize automatic reset sealing, ensure the sealing of the equipment in the non-feeding state, and prepare for the next round of feeding.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closable feed inlet closure structure, characterized in that: The filter plate (1) includes a feed hole (2) at the top of the filter plate (1), the feed hole (2) extends to the upper part of the filter plate (1), the feed hole (2) has feed inlets (3) on both sides of the filter plate (1) at its tail end, and the filter plate (1) is connected to a sealing assembly (5) by fixing bolts (4) on the side of the feed inlet (3). The sealing component (5) is used to block the feed inlet (3).

2. The opening and closing feed inlet closure structure according to claim 1, characterized in that: The sealing component (5) includes a fixed seat (51), a spring steel plate (52) is provided at the fixed seat (51), and a feed flap (53) is provided on the side of the spring steel plate (52) away from the filter plate (1), and the feed flap (53) is flush with the feed inlet (3).

3. The opening and closing feed inlet sealing structure according to claim 2, characterized in that: The fixing seat (51) is provided with a fixing hole (54), and the fixing hole (54) cooperates with the fixing bolt (4) so ​​that the fixing bolt (4) passes through the fixing hole (54) to connect the fixing seat (51) to the filter plate (1) side.

4. The opening and closing feed inlet closure structure according to claim 3, characterized in that: The spring steel plate (52) is connected to the fixed seat (51) by screws (55). The upper part of the spring steel plate (52) is provided with two sets of nail holes (56). The two sets of nail holes (56) cooperate with the screws (55) so that the screws (55) pass through the nail holes (56) to connect the spring steel plate (52) to the fixed seat (51).

5. The opening and closing feed inlet closure structure according to claim 4, characterized in that: The spring steel plate (52) has a plug weld hole (57) below the nail hole (56), and there are 5 plug weld holes (57), and the 5 plug weld holes (57) are centrally symmetrical.

6. The opening and closing feed inlet closure structure according to claim 5, characterized in that: The spring steel plate (52) is welded to the feed flap plate (53) through the plug weld hole (57).

7. The opening and closing feed inlet closure structure according to claim 2, characterized in that: The outer periphery of the feed flap (53) away from the spring steel plate (52) is rounded.

8. The opening and closing feed inlet closure structure according to claim 2, characterized in that: The thickness of the spring steel plate (52) is 0.5-2mm.

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