CN210495356U

CN210495356U - Shallow sandstone filter

Info

Publication number: CN210495356U
Application number: CN201921261769.3U
Authority: CN
Inventors: 蒋浩
Original assignee: Changsha Dawning Environmental Prot Technology Co ltd
Current assignee: Changsha Dawning Environmental Prot Technology Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-05-12
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a shallow sandstone filter, which comprises a cylinder, a three-way valve, a first connecting pipe and a second connecting pipe, wherein the first connecting pipe and the second connecting pipe are communicated with the cylinder; a water collecting device is arranged at the bottom in the cylinder body and is connected with one end of the second connecting pipe; the water collecting device comprises a water collecting barrel, a cover plate and filter rods, wherein the water collecting barrel and the filter rods are cylindrical, the cover plate is arranged at the top of the water collecting barrel, a plurality of filter rod interfaces are obliquely and upwards arranged on the peripheral side wall of the water collecting barrel, and the filter rods are connected with the filter rod interfaces. The utility model provides a filter simple structure, the installation and the maintenance of being convenient for, the blowdown effect can show the improvement during the backwash, still can reduce the loss of filter sand simultaneously.

Description

Shallow sandstone filter

Technical Field

The utility model relates to a filtration equipment technical field, more specifically relates to a shallow sandstone filtration ware.

Background

Shallow filters are a common water filtration device in the industry. The system realizes effective combination of surface filtration and deep filtration, and simultaneously realizes automatic control of the filtration process and the backwashing process. Compared with the traditional filtering mode, the shallow filter has the advantages of good cleaning effect, low backwashing water consumption, high automation degree, stable filtering water quality, small occupied area and the like, and is widely applied to water treatment processes in the industries of electric power, chemical industry, petrochemical industry, industrial water and the like. However, the existing filter generally has the following defects: 1. during back washing, part of filter sand is easy to be carried away by water flow, so that filter sand loss is caused; 2. the back washing efficiency is low, and the pollution discharge effect is poor; 3. the installation is difficult and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a shallow sandstone filter, which is used to solve the existing problems.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a shallow sandstone filter comprises a cylinder, a three-way valve, a first connecting pipe and a second connecting pipe which are communicated with the cylinder, wherein the other end of the first connecting pipe is connected with the three-way valve, the other two interfaces of the three-way valve are respectively connected with a water inlet and a sewage outlet, and the other end of the second connecting pipe is connected with a water outlet; a water collecting device is arranged at the bottom in the cylinder body and is connected with one end of the second connecting pipe; the water collecting device comprises a water collecting barrel, a cover plate and filter rods, wherein the water collecting barrel and the filter rods are cylindrical, the cover plate is arranged at the top of the water collecting barrel, a plurality of filter rod interfaces are obliquely and upwards arranged on the peripheral side wall of the water collecting barrel, and the filter rods are connected with the filter rod interfaces.

Preferably, the angle between the filter stick interface and the horizontal plane is 25-30 degrees.

Preferably, the angle between the filter rod mouthpiece and the horizontal plane is 28 °.

Preferably, the number of the filter stick interfaces and the number of the filter sticks are both 6.

Preferably, the top in the cylinder body is further provided with a water retaining device, the water retaining device comprises a blocking rod and a round cake-shaped baffle, one end of the blocking rod is fixedly connected with the baffle, and the other end of the blocking rod is connected with the top of the cylinder body.

The beneficial effects of the utility model reside in that:

(1) the filter rods are uniformly distributed on the side wall of the periphery of the water collecting barrel and form a certain inclination angle, namely, the filter rods are uniformly distributed on the periphery of the water collecting barrel in a pagoda shape, 360-degree cleaning can be realized during backwashing, and the sewage discharge effect is obviously improved compared with the original effect; meanwhile, the filtering effect of the sewage can be improved during filtering, and the method is particularly suitable for the agricultural field;

(2) the phenomenon that water washes upwards to carry away part of filter sand during backwashing is avoided, so that the loss of the filter sand is reduced;

(3) simple structure, convenient installation and maintenance, long service life and almost zero failure rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the water collecting device of the present invention;

fig. 3 is a schematic structural view of the water retaining device of the present invention.

Description of reference numerals:

1. a barrel; 2. a first adapter tube; 3. a second adapter tube; 4. a water retaining device; 41. a gear lever; 42. a baffle plate; 5. a water collection device; 51. a water collection cylinder; 52. a filter stick interface; 53. filtering the filter stick; 54. a cover plate; 6. a sand filtration layer; 7. a three-way valve; 8. a sewage draining outlet; 9. a water inlet; 10. a water outlet; 11. and (4) adding a sand port.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 3, the shallow sandstone filter comprises a cylinder 1, a three-way valve 7, and a first connecting pipe 2 and a second connecting pipe 3 which are communicated with the cylinder 1, wherein the other end of the first connecting pipe 2 is connected with the three-way valve 7, the other two interfaces of the three-way valve 7 are respectively connected with a water inlet 9 and a sewage outlet 8, and the other end of the second connecting pipe 3 is connected with a water outlet 10; a water collecting device 5 is arranged at the bottom in the cylinder body 1, and the water collecting device 5 is connected with one end of the second connecting pipe 2; the water collecting device 5 comprises a water collecting barrel 51, a cover plate 54 and a filter stick 53, wherein the water collecting barrel 51 and the filter stick 53 are both cylindrical, the cover plate 54 is arranged at the top of the water collecting barrel 51, a plurality of filter stick interfaces 52 are obliquely and upwardly arranged on the peripheral side wall of the water collecting barrel 51, and the filter stick 53 is connected with the filter stick interfaces 52; the water retaining device 4 is installed at the top in the barrel 1, the water retaining device 4 comprises a blocking rod 41 and a round cake-shaped baffle 42, one end of the blocking rod 41 is fixedly connected with the baffle 42, and the other end of the blocking rod is connected with the top of the barrel 1.

Specifically, in this embodiment, a sand adding port 11 and an access port (not shown) are further provided on the cylinder 1, and the sand adding port 11 is used for adding filtering sand to the inside of the filter. During filtering, the interface of the three-way valve 7 connected with the sewage discharge outlet 8 is closed, and the interface connected with the water inlet 9 is opened, so that the water inlet 9 is communicated with the inside of the barrel through the three-way valve 7 and the first connecting pipe 2, pressurized water enters the inside of the barrel through the water inlet and uniformly reaches the sand filtering layer 6 through the baffle 42 of the water retaining device 4; when the water flow filters the sand layer 6, the suspended matters are intercepted by the filtering sand; the filtered clean water is uniformly collected by the water collecting device 5 at the bottom of the filter and flows out through the second connecting pipe 3 and the water outlet 10. The pressure loss is increased continuously along with the continuous accumulation of impurities in the sand filtering layer 6, and when the pressure difference is increased to a certain set value or reaches the set cleaning time, the state is switched to a backwashing state; during backwashing, the interface that three-way valve 7 and drain 8 are connected is opened, the interface of being connected with water inlet 9 is closed, make drain 8 communicate through the inside of three-way valve 7 and first takeover 2 and barrel, at this moment, the pressurized water passes through delivery port 10 and takes over 3 entering water-collecting device 5 through the second, filter rod 53 of rethread water-collecting device 5 gets into filter sand layer 6, wash it, the pollutant that makes the holding back drops and through drain 8 discharge filter, generally, after the backwashing lasts at least two minutes, the filter converts to filtration promptly.

In this embodiment, the number of the filter stick connectors 52 and the number of the filter sticks 53 are 6, and the filter sticks 53 of the water collecting device 5 are uniformly distributed on the periphery of the water collecting barrel 51 in a pagoda shape, so that 360 degrees around the inside of the barrel can be cleaned during backwashing, the sewage discharge effect is remarkably improved, and meanwhile, the problem that partial filter sand is taken away due to direct upward washing of water flow during backwashing of a traditional filter can be avoided, and the loss of the filter sand is reduced.

Further, the angle between the filter plug interface 52 and the horizontal plane is 25-30 degrees, and in the embodiment, the angle between the filter plug interface 52 and the horizontal plane is 28 degrees. Under the angle, the filtering effect and the backwashing effect are optimal, meanwhile, the manual installation of the filter stick 53 and the filter stick connector 52 is facilitated, and in addition, the shape of the bottom of the cylinder body 1 is matched better.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A shallow sandstone filter is characterized by comprising a cylinder, a three-way valve, a first connecting pipe and a second connecting pipe, wherein the first connecting pipe and the second connecting pipe are communicated with the cylinder; a water collecting device is arranged at the bottom in the cylinder body and is connected with one end of the second connecting pipe; the water collecting device comprises a water collecting barrel, a cover plate and filter rods, wherein the water collecting barrel and the filter rods are cylindrical, the cover plate is arranged at the top of the water collecting barrel, a plurality of filter rod interfaces are obliquely and upwards arranged on the peripheral side wall of the water collecting barrel, and the filter rods are connected with the filter rod interfaces.

2. The shallow sandstone filter according to claim 1, wherein the angle between the filter rod interface and the horizontal plane is 25-30 °.

3. The shallow sand filter of claim 2 wherein the angle between the filter plug interface and the horizontal is 28 °.

4. The shallow sand filter as claimed in claim 1 wherein there are 6 filter candle interfaces and 6 filter candle rods.

5. The shallow sandstone filter of claim 1, wherein a water retaining device is further mounted at the top inside the cylinder, the water retaining device comprises a blocking rod and a round cake-shaped baffle, one end of the blocking rod is fixedly connected with the baffle, and the other end of the blocking rod is connected with the top of the cylinder.