WO2012041113A1

WO2012041113A1 - Vortex type multi-media filter

Info

Publication number: WO2012041113A1
Application number: PCT/CN2011/077445
Authority: WO
Inventors: 余金海; 史佳
Original assignee: 余金权
Priority date: 2010-09-28
Filing date: 2011-07-21
Publication date: 2012-04-05
Also published as: CN201825805U

Abstract

A vortex type multi-media filter is disclosed. The filter includes a shell (22), a water inlet pipe (10), a drainage pipe (9), a water outlet pipe (5), a filter layer, and a vortex machine (11). The vortex machine (11) is divided into an upper part and a lower part, the upper part is cylindrical, and the lower part is in the shape of a conical frustum. The vortex machine (11) is arranged in the shell (22), and an upper end of the vortex machine (11) is connected to the top of the shell (22); the water inlet pipe (10) and the drainage pipe (9) are horizontally arranged, the former above the latter, and are in communication with a middle section of the shell (22); the water inlet pipe (10) is tangential with the circular arc of the inner wall of the lower part of the vortex machine (11), and is in communication with the lower part of the vortex machine (11); the drainage pipe (9) is in communication with the bottom end of the lower part of the vortex machine (11); a chemicals feed inlet (21) is arranged on the upper wall of the water inlet pipe (10).

Description

Vortex multi-media filter

技术领域Technical field

The utility model relates to an oily sewage treatment device, in particular to a scroll type multi-media filter.

背景技术Background technique

With the beginning of the three-production polycondensation project, the sewage treatment of polymer-containing polymers has been the object of research and solution. Due to the polymer contained in the water, the existing sewage treatment equipment cannot meet the water treatment requirements, and the following problems generally exist;

1. In the case of polymer in water, the stability of sewage, suspended solids and other mechanical impurities in water is increased, so that the subsequent degreasing and filtration load is increased, the filter material is seriously blocked or the knot is severe, and finally the filter material is unable to be formed. The recovered pollution seriously affected the quality of the effluent.

2. The equipment is degreased, the filtration efficiency is low, and the stain resistance is poor.

3. The backwashing regeneration ability is poor, resulting in frequent backwashing of the equipment and short service life of the filter material.

发明内容 Summary of the invention

In order to solve the above disadvantages, the utility model adopts the following technical solutions:

The utility model relates to a scroll type multi-media filter, which comprises a shell, a goose stone support layer, an inlet pipe, a sewage pipe, an outlet pipe and a filter layer. The casing is divided into three sections of upper, middle and bottom, and the middle section is cylindrical. The upper part of the upper section and the lower part of the bottom section are arc-shaped, the outlet pipe is disposed at the bottom of the bottom section of the casing, and the egg-bearing stone support layer is filled in the bottom section of the casing, and the filter comprises a vortex, the vortex The rotating device is divided into upper and lower parts, the upper part is cylindrical, the lower part is a truncated cone type, the vortex is disposed in the casing, and the upper end is connected with the top of the upper part of the casing, and the inlet pipe and the sewage pipe are respectively upper and lower horizontally Arranging and communicating with the middle section of the casing, the inlet pipe is tangential to an arc of a lower inner wall of the vortex and communicating with a lower portion of the vortex, the sewage pipe and a lower bottom end of the vortex In the same manner, the upper wall of the inlet pipe is provided with a dosing port.

Wherein, the scroll type multi-media filter further comprises a straight tube, a hydrocyclone scrubber, and the hydrocyclone scrubber comprises 6 a screen having the same length in the same horizontal plane and six nozzles, the straight tube being perpendicular to the plane of the six screen tubes, one end of each of the screen tubes being in communication with the upper end of the straight tube, the 6 The other end of the root screen is centered on the upper end of the straight pipe, uniformly arranged at equal angles, and each nozzle is connected, and the nozzles of the six nozzles are clockwise or counterclockwise, facing the same circumferential direction, the lower end of the straight pipe Connected to the outlet pipe.

Wherein, the filter layer of the scroll type multi-media filter further comprises an anthracite or corundum filter layer, wherein the filter layer is a multi-layer filter layer covering the goose stone support layer, the filter layer is composed of The bottom to top sequence includes a quartz sand filter layer, an anthracite or corundum filter layer, and a walnut shell filter layer, and the hydrocyclone scrubber is buried in the walnut shell filter layer.

The utility model can improve the ability of removing oil and removing suspended matter, solve the problem that the filter material is easy to block and knot, and prolong the backwashing interval and service life of the equipment.

附图说明DRAWINGS

Figure 1 is a schematic view of the structure of the present invention

Figure 2 is a schematic cross-sectional view of the structure B-B of the present invention

Figure 3 is a schematic cross-sectional view of the structure A-A of the present invention

Reference numeral

1- Water distribution pipe, 2- Lower screen water distributor, 3-long support, 4-leg, 5 outlet pipe (ie backwash water pipe) ), 6- straight tube, 7-nozzle, 8-hydrocyclone scrubber, 9- drain pipe, 10-inlet pipe, 11- vortex, 12- upper screen water distributor, 13- charging hole, 14- Oil collection pipe, 15-way valve, 16-screen, 17- anthracite or corundum filter layer, 18- discharge hole, 19- cobblestone support, 20-vent tube, 21- Dosing port, 22- shell, 23- walnut shell filter layer, 24- quartz sand filter layer

具体实施方式 detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in Figures 1, 2, and 3,

A scroll type multi-media filter comprising a casing 22, a goose stone support layer, and the casing 22 The upper part, the middle part and the bottom part are cylindrical, the upper part is cylindrical, the upper part of the upper part and the lower part of the bottom part are circular arc shape, and further comprises a charging hole 13 disposed in the upper part of the casing 22, and an inlet pipe 10 disposed in the middle part of the casing 22, Sewage pipe 9 An outlet pipe 5 disposed at a lower portion of the casing 22, a filter layer disposed in the casing 22, the outlet pipe 5 (i.e., a backwashing water pipe) is vertically passed through and welded to the casing 22 At the bottom of the bottom section, the goose stone support layer is filled in the bottom section of the casing, and the bottom of the bottom section of the casing 22 is evenly distributed with three legs 4 .

The filter includes a vortex 11 which is disposed within a housing 22, the vortex 11 The upper and lower parts are divided into a cylindrical shape, the upper part is a truncated cone shape, and the lower part is a truncated cone type. The upper upper end of the vortex 11 is welded to the top of the casing 22, the upper part of the vortexer 11 and the upper screen water distributor 12 In communication, the upper screen water distributor 12 is composed of six screen tubes on one horizontal surface, one end of the six screen tubes and the vortexer 11 The upper part is connected, the other end is centered on the upper part of the vortexer, and is arranged at equal angles.

A top portion of the upper portion of the upper portion of the casing 22 is provided with a oil collecting pipe 14 and a through hole is formed in a central side wall of the oil collecting pipe 14 through the pipe and the casing 22 In the inner communication, a check valve 15 is arranged in the pipe, and the pipe extends into the casing 22, and a pipe 16 is arranged at the end of the pipe extending into the casing 22.

The oil collecting pipe 14 communicates with an upper portion of the vortex 11 in the casing 22.

The screen 16 is to prevent the filter material from flowing out of the housing 22 with water.

The water inlet pipe 10 and the sewage pipe 9 are horizontally disposed above and below, respectively, and the casing 22 The middle section is connected and welded, and the water inlet pipe 10 is tangent to the lower inner wall arc of the vortexer 11 and communicates with the lower portion of the vortexer 11, the sewage pipe 9 and the vortexer 11 The bottom end of the lower portion communicates with the effluent from the inlet pipe 10 into the lower portion of the vortexer 11, and the upper wall of the inlet pipe 10 is provided with a dosing port 21.

The filter further comprises a straight pipe 6 , a hydrocyclone scrubber 8 , and the hydrocyclone scrubber 8 is included in the same horizontal plane 6 a screen of equal length and 6 nozzles 7 perpendicular to the plane of the 6 screens, one end of the 6 screens communicating with the upper end of the straight tube 6 and the other end Connect one nozzle each 7 The nozzles 7 are clockwise or counterclockwise, facing the same circumferential direction, and the six screens are evenly arranged at an equal angle, and the lower end of the straight pipe 6 communicates with the outlet pipe 5.

Wherein, the present scroll type multi-media filter further comprises a lower screen tube water distributor 2, and the lower screen tube water distributor 2 is disposed in the casing 22 The bottom section between the straight pipe 6 and the outlet pipe 5 includes 2

long bars

3, 14 screens, and a water distribution pipe 1 . The water distribution pipe 1 is closed horizontally at both ends, and the water distribution pipe 1 An upper through hole is opened in the middle upper wall to communicate with the lower end of the straight pipe 6, and a lower through hole is opened in the middle lower wall of the water distribution pipe 1 to communicate with the upper end of the outlet pipe 5.

The water distribution pipe 1 has seven ports open to the left and right, and is respectively vertically connected with the seven screen pipes through the flange, and the left and right sides of the water distribution pipe 1 7 The free ends of the root screens are respectively provided with two strip supports 3 which are welded to the side walls of the bottom portion of the casing 22.

Wherein, the scroll type multi-media filter further comprises a goose stone support layer 19, and the cobblestone of the cobblestone support layer 19 passes through the charging hole 13 Filled in the lower section of the casing 22, followed by the filter material of the filter layer, the filter layer being a multi-layer filter layer covering the goose stone support layer 19, the filter layer from bottom to top The sequence includes quartz sand filter layer 24 , an anthracite or corundum filter layer 17 , a walnut shell filter layer 23 , the hydrocyclone scrubber 8 is buried in the walnut shell filter layer 23 .

The scroll multi-media filter adds an anthracite or corundum filter layer to improve filtration.

A discharge hole 18 is provided in the lower side wall of the middle section of the casing.

The pebbles and various filter materials can be discharged from the discharge opening 18.

A venting tube 20 is also provided on the bottom wall of the lower section of the filter.

The working process of the utility model: the oily sewage is tangentially entered into the vortex 11 by the inlet pipe 10 along the lower part of the vortexer 11 through the dosing port 21 Adding a flocculating agent to the water causes the polymer-containing water to change from a latex state to a flocculated, suspended state, after the sewage enters the vortexer 11 through the inlet pipe 10, in the vortex 11 The vortex is generated inside, and under the reaction of the micro-vortex principle, the sewage in the sewage changes from flocculating state to flocculation, and the suspended state is downward, and the sewage without flocculation and suspended matter is upward to realize separation.

The amount of sewage entering the vortex 11 from the inlet pipe 10 is greater than that of the sewage pipe 9 The amount of discharged sewage becomes the flocculated, suspended state sewage that is discharged downward through the sewage pipe 9, and the water without flocculation and suspended matter is upward, and with the gradually rising water level, the upper screen water distributor is passed. Into the multi-media filter, the oily sewage first passes through the walnut shell filter layer 23 to coalesce, intercept and degrease, and then enters the anthracite or corundum filter layer. 17 Adsorbs the filter layer and then enters the quartz sand filter layer. Because the sand particles in the layer are fine, the small gap between the filter materials is utilized, so that the water flows through the filter material, and the suspended matter is trapped in the gap between the filter materials, so that the water quality is further purified to achieve the purpose of oil removal.

As the running time increases, the oil in the tank increases, and when the oil in the casing 22 rises above the lower end of the screen 16, part of the oil floats through the check valve. It is taken away by the oil collection pipe 14 and the oily sewage can continue to enter from the water inlet pipe 10, and the filtration is continued to extend the backwashing interval. Otherwise, the oil can be backwashed when the oil in the tank is full.

There is a switch at the oil collection pipe 14 to open when the oil is collected, and to close when the oil is not collected.

When the suspended solids and oil slick are trapped, the downward flow rate of the sewage in the casing 22 is reduced, and then the regeneration is carried out by backwashing.

During backwashing, water is supplied from the outlet pipe 5, and part of the clean water enters the casing from the lower screen water distributor 2 Inside the cobblestone support layer, and upward, as the water level rises, the upper filter layer expands loosely, and part of the water is sprayed from the six nozzles 7 of the hydrocyclone scrubber 8 toward the same circumferential direction, due to the six nozzles 7 In the walnut shell filter layer, under the action of hydraulic spraying, rotating the filter material and colliding, the filter material is washed, so that the dirt adsorbed by the filter material is quickly separated from the filter material body, and the water level in the casing 22 rises. Sewage through the upper screen water distributor 12 The vortexer 11 , the sewage pipe 9 , the water inlet pipe 10 , the discharge housing 22 , or the filter casing 16 , the check valve 15 , and the oil collection pipe 14 are discharged from the casing 22 .

In the casing 22, the upper and lower

screen water distributors

12 and 2 can effectively prevent the loss of the filter material.

Claims

1, A scroll type multi-media filter comprising a casing (22), a goose stone support layer (19), an inlet pipe (10), a sewage pipe (9), an outlet pipe (5), a filter layer, The casing (22) is divided into upper, middle and bottom sections, the middle section is cylindrical, the upper part of the upper section and the lower part of the bottom section are arc-shaped, and the outlet pipe (5) is arranged at the bottom of the bottom section of the casing (22). The geese stone support layer (19) is filled in the bottom section of the casing (22) and is characterized in that it comprises a vortex (11), the vortex (11) is divided into upper and lower parts, and the upper part is cylindrical. The lower part is a truncated cone type, the vortex (11) is disposed in the casing (22), and the upper end of the vortex (11) is connected to the top of the upper section of the casing (22), the inlet pipe (10) The sewage pipe (9) is horizontally disposed above and below, and communicates with the middle portion of the casing (22), and the water inlet pipe (10) is tangent to the arc of the lower inner wall of the vortexer (11), and a lower portion of the vortex (11) is in communication with the sump (9) and the vortex The lower bottom end of (11) is in communication, and the upper wall of the inlet pipe (10) is provided with a dosing port (21).

2, A scroll type multi-media filter according to claim 1, comprising a straight pipe (6), a hydrocyclone (8), and said hydrocyclone (8) comprising six in the same a screen tube of equal length in the horizontal plane and six nozzles (7), the straight tube (6) is perpendicular to the plane of the six screen tubes, and one end of each of the screen tubes is connected to the upper end of the straight tube (6). The other ends of the six screens are centered on the upper end of the straight tube (6), are equally spaced at equal angles, and each is connected to a nozzle (7), and the nozzles of the six nozzles (7) are clockwise or counterclockwise. And facing the same circumferential direction, the lower end of the straight pipe (6) communicates with the outlet pipe (5).

The scroll type multi-media filter according to claim 1 or 2, wherein the filter layer further comprises an anthracite or corundum filter layer (17), the filter layer is a multi-layer filter layer covering the goose stone support layer (19), and the filter layer is sequentially arranged from bottom to top The utility model comprises a quartz sand filter layer (24), an anthracite or corundum filter layer (17), a walnut shell filter layer (23), and the hydrocyclone scrubber (8) is buried in the walnut shell filter layer (23) )Inside.