Multi-medium filter for industrial demineralized water

Abstract

The utility model provides a multi-medium filter for industrial demineralized water, which comprises a shell with a water inlet at the bottom and a water outlet at the top, and a pot-shaped water distributor and a multi-medium layer structure are sequentially arranged in the shell from bottom to top; the pot-shaped water distributor is of a spherical surface structure provided with a plurality of water distribution holes, the sphere center of the spherical surface structure faces the water inlet, and the water distribution holes are uniformly formed in the vertex of the spherical surface structure and a plurality of groups of concentric circumferences; and plugging elements for plugging the water distribution holes are detachably arranged at the top point and the water distribution holes on the plurality of concentric circumferences close to the top point. The industrial demineralized water multi-medium filter is simple in structure and low in cost, avoids the phenomena of telescope and sand leakage, and has a good filtering effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial water filtration, and in particular relates to an industrial desalted water multi-media filter. Background Art

[0002] At present, the chemical water production equipment of Linyi Hengchang Coking Co., Ltd. includes a pretreatment system, an RO desalination system and a mixed bed fine desalination system. The pretreatment system is equipped with flotation, flocculation and dosing devices, a clear water tank, a raw water tank, a raw water pump, a bactericide dosing device and a multi-media filter. The existing multi-media filter mainly relies on the sand layer to intercept suspended matter, colloids and other impurities in the water. The intercepted impurities need to be washed out of the filter by water backwashing to restore the filtering function of the sand layer. The backwash device of the filter was designed earlier, and the water distribution holes were of different sizes and there was a problem of uneven water discharge, which easily led to the disorder of the sand layer, causing the impurities mixed in the sand layer to be unable to be cleaned out, and eventually causing the sand layer to be compacted and agglomerated, breeding bacteria, and the filter losing its filtering function and aggravating the pollution problem of reverse osmosis. In addition, during the operation inspection, it was found that the sand layer had a "telescope" phenomenon. The sand layer inside the filter was low in the middle and high on both sides. The large sand particles in the middle were mixed with the small sand particles, which seriously affected the filtering function. Moreover, the sand layers on both sides were agglomerated and agglomerated, and there was a typical disordered layer phenomenon. These phenomena indicate that the current water distribution device has the problem of too much water in the middle and too little water on both sides, which cannot evenly support the sand layer as a whole. In addition, the pebbles and sand grains are severely worn, and the "sand running" phenomenon is prone to occur.

[0003] In view of this, this application is hereby filed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a novel industrial desalted water multi-media filter, which has a simple structure and low cost, overcomes the "telescope" phenomenon and "sand running" phenomenon of the prior art, and has a good filtering effect.

[0005] The basic concept of the technical solution adopted in this utility model is as follows:

[0006] An industrial desalted water multi-media filter, comprising a shell with a water inlet at the bottom and a water outlet at the top, wherein a pot-shaped water distributor and a multi-media layer structure are sequentially arranged inside the shell from bottom to top;

[0007] The pot-shaped water distributor is a spherical structure with multiple water distribution holes, the center of the spherical structure faces the water inlet, and the water distribution holes are evenly arranged at the apex of the spherical structure and on multiple groups of concentric circles; wherein the water distribution holes at the apex and on several concentric circles near the apex are detachably provided with a blocking element for blocking the water distribution holes.

[0008] As one embodiment, the blocking element includes a bolt that penetrates downwardly into the water distribution hole from the upper surface of the spherical structure and a nut connected to the bolt.

[0009] As one method, the water distribution holes on the first concentric circle near the apex are all provided with the blocking elements, and the water distribution holes on the second and third concentric circles near the apex are provided with the blocking elements at intervals.

[0010] As a method, the multi-medium layers are, from bottom to top, a zinc oxide refractory ball layer, a pebble layer and a fine sand layer.

[0011] As one approach, a gasket is disposed between the bolt and the nut, and surfaces of the bolt, the nut and the gasket are coated with a waterproof coating.

[0012] As one approach, the pebble layer uses pebbles with a size of 10 to 20 mm.

[0013] As one method, the fine sand layer uses fine sand with a size of 0.2-0.5 mm.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model significantly improves the filtering effect, solves the problem of chaotic layers, and can be widely used in multi-media filter systems such as industrial demineralized water and indirect-cooled industrial circulating water.

[0016] 2. The industrial desalted water multi-media filter of the utility model has a simple structure, and the materials and components used are easy to obtain, which is conducive to industrial promotion and use. In addition, it is also easy to modify according to the structure of the existing multi-media filter of the enterprise, and even does not need to be outsourced, which is conducive to reducing investment costs.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0019] Figure 1 It is a schematic diagram of the main structure of the industrial desalted water multi-media filter in Example 1 of the utility model.

[0020] Figure 2 yes Figure 1 Side view of the water distributor used in.

[0021] Figure 3 yes Figure 1 Top view of the water distributor used in.

[0022] Explanation of the reference numerals: 1-zinc oxide refractory ball layer; 2-pebble layer; 3-fine sand layer; 4-pot-shaped water distributor; 5-water inlet; 6-water outlet; 7-water distribution hole; 8-bolt; 9-nut. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0024] Example 1

[0025] An industrial desalinated water multi-media filter, such as Figure 1 As shown, it comprises a shell with a water inlet 5 at the bottom and a water outlet 6 at the top, and a pot-shaped water distributor 4 and a multi-media layer structure are arranged in sequence from bottom to top inside the shell.

[0026] like Figure 2-3 As shown, the pot-shaped water distributor 4 is a spherical structure provided with a plurality of water distribution holes 7, the center of the spherical structure faces the water inlet 5, and the water distribution holes 7 are evenly arranged at the apex of the spherical structure and on a plurality of groups of concentric circles; wherein, the water distribution holes 7 at the apex and on a plurality of concentric circles near the apex are detachably provided with a blocking element for blocking the water distribution holes 7.

[0027] As a specific example, the blocking element includes a bolt 8 penetrating downward from the upper surface of the spherical structure into the water distribution hole 7 and a nut 9 connected to the bolt 8. The materials used in this structure are common and easily available, and can conveniently achieve the purpose of blocking the water distribution outlet of the utility model, which is cheap and effective.

[0028] As a method, all the water distribution holes 7 on the first concentric circle near the apex are provided with the blocking elements, and the water distribution holes 7 on the second and third concentric circles near the apex are provided with the blocking elements at intervals. This design can better avoid the "telescope" phenomenon and the "sand running" phenomenon, and has a good filtering effect.

[0029] As a method, the multi-medium layer is composed of a zinc oxide refractory ball layer 1, a pebble layer 2 and a fine sand layer 3 from bottom to top. The pebble layer 2 uses pebbles with a size of 10 to 20 mm. The fine sand layer 3 uses fine sand with a size of 0.2 to 0.5 mm. The materials used in the multi-medium layer are all general materials sold on the market.

[0030] The specific arrangement of the above-mentioned multi-media layer can achieve a better filtering effect for the working conditions of industrial desalted water.

[0031] As an optimization method, a gasket is arranged between the bolt 8 and the nut 9, and a waterproof coating is applied to the surface of the bolt 8, the nut 9 and the gasket. This implementation can extend the service life of the multi-media filter and ensure a stable and reliable filtering effect.

[0032] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be based on the scope defined in the attached claims.

Claims

1. An industrial desalted water multi-media filter, characterized in that: It comprises a shell having a water inlet (5) at the bottom and a water outlet (6) at the top, wherein a pot-shaped water distributor (4) and a multi-medium layer structure are sequentially arranged inside the shell from bottom to top; The pot-shaped water distributor (4) is a spherical structure provided with a plurality of water distribution holes (7), the center of the spherical structure faces the water inlet (5), and the water distribution holes (7) are evenly arranged at the apex of the spherical structure and on a plurality of groups of concentric circles; wherein the water distribution holes (7) at the apex and on a plurality of concentric circles near the apex are detachably provided with a blocking element for blocking the water distribution holes (7).

2. The industrial desalted water multi-media filter according to claim 1, characterized in that: The blocking element comprises a bolt (8) which penetrates downwardly into the water distribution hole (7) from the upper surface of the spherical structure, and a nut (9) connected to the bolt (8).

3. The industrial desalted water multi-media filter according to claim 1 or 2, characterized in that: The water distribution holes (7) on the first concentric circle near the apex are all provided with the blocking elements, and the water distribution holes (7) on the second and third concentric circles near the apex are provided with the blocking elements at intervals.

4. The industrial desalted water multi-media filter according to claim 1, characterized in that: The multi-medium layers are, from bottom to top, a zinc oxide refractory ball layer (1), a pebble layer (2) and a fine sand layer (3).

5. The industrial desalted water multi-media filter according to claim 2, characterized in that: A gasket is arranged between the bolt (8) and the nut (9), and surfaces of the bolt (8), the nut (9) and the gasket are coated with a waterproof coating.

6. The industrial desalted water multi-media filter according to claim 4, characterized in that: The pebble layer (2) uses pebbles with a size of 10 to 20 mm.

7. The industrial desalted water multi-media filter according to claim 4, characterized in that: The fine sand layer (3) is made of fine sand with a size of 0.2-0.5 mm.

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