Filter bag of filter, connecting structure of filter bag and filter net basket and bag filter

Abstract

According to the filter bag of the filter, the connecting structure of the filter bag and the filter net basket and the bag type filter, the filtering performance is good, the outer side of the net basket body is sleeved with the filter bag, blocking is avoided, it is ensured that all parts of the bag body make full contact with liquid, the effective filtering area utilization rate is greatly increased, and tiny impurities are efficiently intercepted; and the purity of the filtered liquid is higher, so that the filter is accurately adapted to industries such as electronic chip manufacturing, high-end pharmacy and the like with strict requirements on the purity, and the product quality is guaranteed. The bag body is provided with plastic supporting rods which are reasonably distributed and fixed to the bag body, and the opening end is provided with an annular fixing part, a reinforcing piece and a fixing hole and matched with the net basket body. The mesh basket body is made of stainless steel, is durable and can intercept coarse particles. When the bag body is opened, one end of the supporting rod abuts against the inner wall of the barrel body, the other end of the supporting rod is inserted into the connecting hole, the supporting rod and the connecting hole are spaced, smooth filtering is guaranteed, and a reliable scheme is provided for the high-quality filtering requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bag filter equipment, and specifically relates to a filter bag of filter, and a filter bag and filter screen basket connecting structure and bag filter. BACKGROUND

[0002] In today's many industries and fields with strict requirements on liquid purity, such as high-end electronic manufacturing, fine chemical synthesis, biopharmaceutical purification, and high-quality food and beverage production, the filter as a key equipment to ensure the quality of the liquid, its performance is directly related to the quality of the final product and the smoothness of the production process.

[0003] The traditional filter has developed for many years and has formed some fixed patterns in structural design. For example, the patent with the patent application number CN202422227801.3 discloses a bag filter, which represents a common filter device structure. In the design (refer to Figure 1 The metal perforated outer cylinder 24 is used as the core support and the coarse filter component, and the filter bag 25 is arranged inside. When the liquid filtration operation is started, the liquid to be filtered flows into the filter bag 25 under the external pressure. At this time, due to the action of the liquid pressure, the filter bag 25 is forced to adhere to the inner wall of the metal perforated outer cylinder 24. Although the metal perforated outer cylinder 24 is distributed with a plurality of through holes, in theory, these through holes can provide the filter bag 25 with normal filtering function, so that the liquid can pass through the filter bag 25 into the cylinder, and then be discharged through the through holes to realize filtration.

[0004] However, in practical application, serious defects are exposed. The metal perforated outer cylinder 24 has a large number of non-through hole areas, which occupy a considerable proportion of the cylinder wall, so that the part of the filter bag 25 closely adhered thereto is blocked and cannot participate in the filtration process, directly leading to a significant reduction in the effective filtration area of the filter bag 25. This not only reduces the filtration efficiency, but also prolongs the filtration period, increases the production cost and time cost. Therefore, it is urgent to break through the connection defects between the existing filter bag and the support structure and to innovatively design a more efficient and reasonable filter bag and filter screen basket connecting structure. SUMMARY

[0005] In view of the problems pointed out in the background art, the utility model provides a filter bag of filter, and a filter bag and filter screen basket connecting structure and bag filter to solve the above technical problems.

[0006] The technical scheme of the utility model is as follows:

[0007] A filter bag of filter, comprising an open-ended bag body, a support rod penetrating the inside and outside of the bag body is connected to the bag body, and a plurality of support rods are distributed on the bag body.

[0008] The opening end of the bag body is connected with an annular fixing part.

[0009] The fixing part is connected with an annular reinforcing sheet, and further comprises a fixing hole penetrating through the fixing part and the reinforcing sheet.

[0010] The support rod is fixedly connected with the bag body, and is made of plastic.

[0011] A filter bag and filter screen basket connecting structure of a filter, comprising a screen basket body, further comprising the filter bag, the bag body is sleeved outside the screen basket body, the screen basket body is provided with a connecting hole corresponding to the support rod, and the support rod is movably connected in the connecting hole.

[0012] The opening end of the screen basket body is provided with an annular fixing disc, and the fixing disc is provided with a through hole corresponding to the fixing hole.

[0013] The screen basket body is made of stainless steel material.

[0014] A bag filter, comprising a barrel body, the barrel body is provided with the filter bag and the filter screen basket, the inner side wall of the barrel body is provided with an annular fixing ring, the fixing part and the fixing disc are sealingly and fixedly connected with the fixing ring; when the filter bag is expanded by the liquid to be filtered entering the filter bag, one end of the support rod abuts against the inner wall of the barrel body, the other end of the support rod is connected in the connecting hole, and the filter bag and the filter screen basket are in a spaced state.

[0015] The upper side of the fixing ring is a liquid inlet cavity, and the lower side of the fixing ring is a liquid outlet cavity.

[0016] The side wall of the liquid inlet cavity is provided with a liquid inlet, and the side wall of the liquid outlet cavity is provided with a liquid outlet and a waste outlet.

[0017] By adopting the above technical scheme, the filter bag and filter screen basket connecting structure of the filter has the following beneficial effects:

[0018] Firstly, the filter has good filtering performance; the unique design that the filter bag is sleeved outside the screen basket body effectively avoids the problem of blockage, guarantees that each part of the filter bag fully contacts with the liquid, greatly improves the utilization rate of the effective filtering area, significantly improves the interception efficiency of the tiny impurities, makes the filtered liquid more pure, and can accurately meet the standards of industries such as electronic chip manufacturing and high-end pharmaceutical industry which have high requirements on the purity of liquid, and guarantees the product quality.

[0019] Second, prolong the service life. The stainless steel material of the basket body has high strength and corrosion resistance, can work stably for a long time in harsh working conditions, effectively intercepts coarse particle impurities, reduces the impact and wear of the filter bag, prolongs the replacement cycle of the filter bag. At the same time, the clever setting of the supporting rod, one end abutting the inner wall of the barrel body and the other end movably inserting the basket connecting hole, not only provides stable support for the filter bag to prevent it from being damaged due to liquid impact deformation, but also allows the filter bag to adaptively adjust according to the liquid flow, further reducing the loss, and reducing the equipment maintenance cost and frequency.

[0020] Third, convenient and efficient operation. The precise regulation of the liquid inlet speed and pressure of the liquid inlet facilitates flexible adjustment according to different filtering requirements, and optimizes the filtering process. The waste outlet design of the liquid outlet cavity facilitates regular cleaning of trapped impurities, without complex disassembly, simple operation can maintain the good running state of the filter, saving labor and time cost, improving production efficiency, laying a solid foundation for continuous and efficient industrial filtration operation, and having wide application and promotion value in many fields. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 It is a structural schematic diagram of the prior art.

[0023] Figure 2 It is a structural schematic diagram of the filter bag of the present application.

[0024] Figure 3 It is a sectional view of the filter bag of the present application.

[0025] Figure 4 It is a structural schematic diagram of the connection of the filter bag and the filter basket of the present application.

[0026] Figure 5 It is a structural schematic diagram of the bag filter of the present application.

[0027] Explanation of reference numerals in the drawings: bag body 1, supporting rod 2, fixed part 3, basket body 4, connecting hole 5, fixed disc 6, barrel body 7, fixed ring 8, liquid inlet cavity 9, liquid outlet cavity 10, liquid inlet 11, liquid outlet 12, waste outlet 13. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] The following references are made to Figures 1-5 The utility model is described as follows:

[0030] Embodiment: a bag filter, including barrel body 7, it is as the whole filter base frame, provides stable containing space for internal filter assembly, its structural strength and material characteristics are carefully considered, both can withstand the pressure impact in the filtering process, also have certain corrosion resistance, to adapt to the filtering demand of different nature liquid. The filter bag and filter basket are cleverly arranged inside the barrel body 7, and the layout is reasonable, which is the key to realize accurate filtration.

[0031] The filter bag includes a bag body 1 with one end open, and the bag body 1 is used as a core filter component and adopts a structure with one end open, which facilitates installation and maintenance.

[0032] A support rod 2 is connected through the inside and outside of the bag body 1, and a plurality of support rods 2 are distributed on the bag body 1. These support rods 2 are stably and fixedly connected with the bag body 1, and they are not randomly arranged and bear heavy responsibilities in the filtering process. On the one hand, the support rod 2 made of plastic material has certain flexibility and chemical stability, which can effectively support the bag body 1 to prevent it from being deformed excessively under the impact of liquid, and will not be easily corroded and damaged due to contact with various liquids.

[0033] The open end of the bag body 1 is connected with an annular fixing part 3, and the fixing part 3 is connected with an annular reinforcing sheet. The fixing part 3 and the reinforcing sheet thereon play a synergistic role, which not only enhances the structural strength of the opening of the bag body 1, but also provides a stable basis for subsequent connection. The fixing hole penetratingly arranged on the fixing part 3 is used for precise butt joint with other components.

[0034] The filter basket includes a basket body 4 with one end open, and the opening design of the basket body 4 is matched with the filter bag to facilitate combined installation of the two.

[0035] The basket body 4 is made of stainless steel material, which is outstanding in strength, durability and corrosion resistance, and can ensure stable performance under long-term and complex filtering conditions.

[0036] The bag body 1 is sleeved outside the basket body 4, which overturns the traditional layout and effectively avoids the problem of blockage caused by close contact between the filter bag and the filter basket.

[0037] The net basket body 4 is provided with a connecting hole 5 corresponding to the supporting rod 2, and the supporting rod 2 is movably inserted into the connecting hole 5. This connection mode not only realizes the preliminary positioning of the filter bag, but also allows the filter bag to adaptively adjust the position within a certain range according to the liquid flow.

[0038] The open end of the net basket body 4 is provided with an annular fixing disc 6, which is provided with through holes corresponding to the fixing holes, which facilitates the further fixed connection of the filter bag and the filter basket, and ensures the consistency of the two during the filtering process.

[0039] The inner side wall of the barrel body 7 is provided with an annular fixing ring 8, which is a key hub for connecting the filter bag and the filter basket and dividing the space inside the barrel.

[0040] The fixed part 3 and the fixing disc 6 are sealingly and fixedly connected with the fixing ring 8, so as to divide the inside of the barrel body 7 into two spaces with different functions, the upper side of the fixing ring 8 is the liquid inlet chamber 9, and the lower side is the liquid outlet chamber 10. The liquid inlet 11 on the side wall of the liquid inlet chamber 9 serves as the inlet of the liquid to be filtered, which accurately controls the liquid inflow speed and pressure; the liquid outlet 12 on the side wall of the liquid outlet chamber 10 is responsible for discharging the purified liquid for subsequent use, and the waste discharge port 13 is used for periodic cleaning of the impurities intercepted during the filtering process, so as to ensure the continuous and efficient operation of the filter.

[0041] The filter bag and the net basket body 4 are located in the liquid outlet chamber 10,

[0042] When the filter bag is opened by the liquid to be filtered entering it, one end of the supporting rod 2 abuts against the inner wall of the barrel body 7, and the other end of the supporting rod 2 is connected in the connecting hole 5, and the filter bag and the filter basket are in a spaced state.

[0043] During actual filtering operation, the liquid enters the liquid inlet chamber 9 from the liquid inlet 11, and then flows into the net basket body 4. The net basket body 4 has a large mesh structure, which first intercepts coarse particulate impurities such as sand and large particle suspended solids in the liquid, playing a role in preliminary filtration. Then, the liquid enters the filter bag, at which time the pressure of the liquid to be filtered opens the filter bag, so that one end of the supporting rod 2 abuts against the inner wall of the barrel body 7, and the other end is movably connected in the connecting hole 5, which cooperates with the state of the other end to support and position the filter bag in all directions, ensuring that the filter bag always maintains a specific ideal working position during filtering work and does not deviate or deform excessively. At the same time, the filter bag and the filter basket are in a spaced state, effectively avoiding the problem of blockage, ensuring that every inch of the filter area of the filter bag can fully exert its efficiency, greatly improving the filtering efficiency and quality, and providing a reliable solution for industrial filtration and other fields requiring liquid purity.

[0044] The working principle of the bag filter is as follows:

[0045] First, the liquid to be filtered enters the filter through the liquid inlet 11 on the side wall of the liquid inlet cavity 9, and the liquid inlet 11 can accurately control the liquid inflow speed and pressure to ensure that the liquid starts the filtering process in the right state.

[0046] Next, the liquid flows into the basket body 4 located in the liquid outlet cavity 10. The basket body 4, which is made of stainless steel, has a large mesh structure that plays a preliminary filtering role, intercepting coarse particulate impurities such as sand and large suspended particles, to prevent these large particles from directly impacting the filter bag and prolonging the service life of the filter bag.

[0047] Subsequently, the liquid that has undergone preliminary filtration enters the filter bag. At this time, under the pressure of the liquid to be filtered, the filter bag is opened. The support rod 2 on the filter bag abuts one end of the inner wall of the barrel 7, and with the support force provided by the barrel 7, combined with the other end of the connection mode of the movable insertion in the connecting hole 5 of the basket body 4, the filter bag is supported and positioned in all directions, so that the filter bag always maintains a specific ideal working position during the filtering process, and does not deviate or deform excessively.

[0048] At the same time, since the filter bag is sleeved outside the basket body 4, and the two are in a spaced state, the problem of blockage caused by the filter bag tightly adhering to the filter basket in traditional filters is effectively avoided, ensuring that every inch of the filter area of the filter bag can fully contact with the liquid, efficiently trapping small impurities, and the finally purified liquid passes through the filter bag, collects in the liquid outlet cavity 10, and is discharged through the liquid outlet 12 on the side wall of the liquid outlet cavity 10 for subsequent process use. The impurities trapped during the filtering process can be regularly cleaned out through the waste outlet 13 of the liquid outlet cavity 10 to ensure the continuous and stable operation of the filter and maintain high filtering performance.

[0049] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A filter bag for a filter comprising a bag body (1) open at one end, characterised in that: The bag body (1) is connected with support rods (2) penetrating the inside and outside of the bag body (1).

2. A filter bag for a filter according to claim 1, characterized in that: The opening end of the bag body (1) is connected with a ring-shaped fixing part (3).

3. A filter bag for a filter according to claim 2, characterized in that: The fixing part (3) is connected with a ring-shaped reinforcing sheet, and further comprises a fixing hole penetrating the fixing part (3) and the reinforcing sheet.

4. The filter bag of claim 1, wherein: The support rods (2) are fixedly connected with the bag body (1), and the support rods (2) are made of plastic.

5. Filter bag and filter basket connection structure of a filter, comprising a basket body (4), characterized in that: Further comprising the filter bag according to any one of claims 1-4, the bag body (1) is sleeved outside the mesh basket body (4), the mesh basket body (4) is provided with a connecting hole (5) corresponding to the support rod (2), and the support rod (2) is movably connected in the connecting hole (5).

6. The filter bag-to-rack connection of claim 5, wherein: The opening end of the mesh basket body (4) is provided with a ring-shaped fixing disc (6), and the fixing disc (6) is provided with a through hole corresponding to the fixing hole.

7. The filter bag and filter basket connection structure of claim 5, wherein: The mesh basket body (4) is made of stainless steel material.

8. A bag filter comprising a barrel (7), characterized in that: The barrel body (7) is provided with the filter bag and the filter mesh basket according to claim 6, the inner side wall of the barrel body (7) is provided with a ring-shaped fixing ring (8), the fixing part (3) and the fixing disc (6) are sealingly and fixedly connected with the fixing ring (8); when the filter bag is expanded by the liquid to be filtered entering the filter bag, one end of the support rod (2) abuts against the inner wall of the barrel body (7), the other end of the support rod (2) is connected in the connecting hole (5), and the filter bag and the filter mesh basket are in a spaced state.

9. A baghouse filter as defined in claim 8, wherein: The upper side of the fixing ring (8) is a liquid inlet cavity (9), and the lower side of the fixing ring (8) is a liquid outlet cavity (10).

10. A baghouse filter as claimed in claim 9, characterized in that: The side wall of the liquid inlet cavity (9) is provided with a liquid inlet (11), and the side wall of the liquid outlet cavity (10) is provided with a liquid outlet (12) and a waste outlet (13).

Images