Filter with partition plate box

Abstract

The utility model discloses a filter with a clapboard box, which comprises a filter shell (1), the filter shell is composed of an upper sealing head (2), a middle barrel (3) and a lower sealing head (4) which are connected with one another, the clapboard box (14) is arranged at the lower part of an inner cavity of the filter shell (1), and the outer contour of the clapboard box (14) is matched with the cross section of the inner cavity of the filter shell (1). A partition box (14) is arranged in the filter shell (1), a gap is reserved between the partition box (14) and the inner wall of the filter shell (1), a plurality of filter elements (5) distributed in an array mode are connected to the top end face of the partition box (14), outlets in the bottom ends of the filter elements (5) are communicated with an inner cavity of the partition box (14), a turbid liquid inlet pipeline (6) is connected to one side of the filter shell (1), and a clear liquid outlet pipeline (7) is connected to one side of the partition box (14). The clear liquid outlet pipeline (7) is positioned outside the filter shell (1), and meanwhile, a back flushing pipeline (8) is also connected to the clear liquid outlet pipeline (7).

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a filter with a partition box. Background Art

[0002] In a traditional partition filter, a partition is arranged at the upper part of the filter. The partition divides the inner cavity of the filter into two parts, namely a supernatant cavity above and a turbid liquid cavity below. A plurality of filter elements are arranged below the partition, and an inner conduit is arranged inside the filter element and directly leads to the supernatant cavity above. For a filter with such a structure, due to the need to leave an operation space for backwashing, there is a section of a light pipe structure without filter media at the top of the filter element. This will result in a relatively long overall length of the filter element, and further lead to a relatively high overall height of the filter, occupying a large space. At the same time, in a traditional filter, the filtered supernatant flows from bottom to top. Once the overall height of the filter is relatively high, a water pump with a large lift needs to be configured to match it, which will bring a certain cost pressure to users.

[0003] Therefore, there is a need for a method or device that can solve the above problems now. Summary of the Invention

[0004] The utility model is proposed to solve the above-mentioned deficiencies existing in the prior art, and provides a filter with a partition box that has a simple structure, ingenious design, reasonable layout, can save costs and has a small overall occupied space.

[0005] The technical solution of the utility model is: a filter with a partition box, including a filter housing 1, characterized in that: the filter housing 1 is composed of three parts, namely an upper head 2, an intermediate cylinder 3 and a lower head 4 which are connected to each other. A partition box 14 is arranged at the lower part of the inner cavity of the filter housing 1. The outer contour of the partition box 14 matches the cross-section of the inner cavity of the filter housing 1, and there is a gap between the partition box 14 and the inner wall of the filter housing 1. A plurality of filter elements 5 distributed in an array are connected to the top end surface of the partition box 14. The outlet at the bottom end of the filter element 5 is communicated with the inner cavity of the partition box 14. A turbid liquid inlet pipeline 6 is connected to one side of the filter housing 1. A supernatant outlet pipeline 7 is connected to one side of the partition box 14, and the supernatant outlet pipeline 7 is located outside the filter housing 1. At the same time, a backwashing pipeline 8 is also connected to the supernatant outlet pipeline 7.

[0006] A plurality of longitudinally distributed slag discharge holes 9 are also arranged on the partition box 14, and these slag discharge holes 9 are distributed in an array.

[0007] An air release pipeline 10 and a cleaning liquid pipeline 11 are opened at the top of the upper head 2.

[0008] A drain pipe 12 is provided on the middle cylinder body 3, and the height of the inlet end of the drain pipe 12 is higher than the top end face of the filter element 5.

[0009] A drain pipe 13 is provided at the bottom end of the lower head 4.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The filter with a partition box in this structural form has a simple structure, ingenious design and reasonable layout. Aiming at the problems existing in the traditional filter during the working process, a special structure is designed. The partition is creatively arranged at the lower part of the filter, and the partition is changed into a partition box with an inner cavity. The filter element is inserted on the top end face of the partition box. In this structure, the filter element does not need to be provided with a light pipe structure. Therefore, the length of the filter element can be effectively shortened (on the premise of ensuring the same filtration effect), thereby reducing the overall occupied space of the filter; and therefore, there is no need to select a water pump with a larger head, which can effectively reduce its operating cost. And the manufacturing process of this filter is simple and the manufacturing cost is low. Therefore, it can be said that it has multiple advantages and is especially suitable for popularization and application in this field, and its market prospect is very broad. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0013] Figure 2 It is a cross-sectional view of the partition box part in an embodiment of the utility model.

[0014] Figure 3 It is Figure 1 A-A cross-sectional view of Detailed Embodiments

[0015] The following will describe the detailed embodiments of the utility model in conjunction with the drawings. As Figure 1 , Figure 2 , Figure 3 shown: A filter with a partition box includes a filter housing 1, which is composed of three parts: an upper head 2, a middle cylinder body 3 and a lower head 4 connected to each other. A partition box 14 is provided at the lower part of the inner cavity of the filter housing 1. The outer contour of the partition box 14 matches the cross-section of the inner cavity of the filter housing 1, and there is a gap between the partition box 14 and the inner wall of the filter housing 1. A plurality of filter elements 5 distributed in an array are connected to the top end face of the partition box 14. The outlet at the bottom end of the filter element 5 is communicated with the inner cavity of the partition box 14. A turbid liquid inlet pipe 6 is connected to one side of the filter housing 1. A clear liquid outlet pipe 7 is connected to one side of the partition box 14, and the clear liquid outlet pipe 7 is located outside the filter housing 1. At the same time, a backflush pipe 8 is also connected to the clear liquid outlet pipe 7.

[0016] A plurality of slag discharge holes 9 distributed longitudinally are further provided on the partition box 14, and these slag discharge holes 9 are arranged in an array.

[0017] A vent pipeline 10 and a cleaning liquid pipeline 11 are provided at the top of the upper head 2.

[0018] A liquid discharge pipeline 12 is provided on the middle cylinder body 3, and the height of the inlet end of the liquid discharge pipeline 12 is higher than the top end surface of the filter element 5.

[0019] A drain pipeline 13 is provided at the bottom end of the lower head 4.

[0020] Electromagnetic valves are provided on all the above pipelines (the turbid liquid inlet pipeline 6, the clear liquid outlet pipeline 7, the backflush pipeline 8, the vent pipeline 10, the cleaning liquid pipeline 11, the liquid discharge pipeline 12 and the drain pipeline 13).

[0021] The working process of the filter with a partition box in the embodiment of the present utility model is as follows: The turbid liquid to be filtered is pumped into the inner cavity of the filter housing 1 through the turbid liquid inlet pipeline 6. After the turbid liquid enters the inner cavity, it will flow upward through the gap between the partition box 14 and the inner wall of the filter housing 1 to the upper part of the partition box 14. After the inner cavity of the filter housing 1 is filled with the turbid liquid, under the action of pressure, the turbid liquid will enter into a plurality of filter elements 5. During the process that the turbid liquid passes through the filter elements 5, the impurities therein will be intercepted by the filter elements 5 and adhere to the outer surface of the filter elements 5, while the clear liquid with the removed impurities will flow into the inner cavity of the partition box 14 and finally be discharged through the clear liquid outlet pipeline 7, realizing the filtration of the turbid liquid.

[0022] After working for a period of time, the impurities adhering to the filter elements 5 will form filter cakes, and the filter cakes will affect the liquid circulation effect, so it is necessary to clean them. When cleaning, first stop injecting turbid liquid into the filter housing 1, then open the liquid discharge pipeline 12 and the vent pipeline 10. The water body above the inlet of the liquid discharge pipeline 12 will be discharged through the liquid discharge pipeline 12. Then close the clear liquid outlet pipeline 7 and open the backflush pipeline 8. Air is injected into the inner cavity of the partition box 14 through the backflush pipeline. The air will be blown out from the inside of the filter elements 5 in the reverse direction and will wash down the filter cakes adhering to the outer surface of the filter elements 5 during the blowing process. At the same time, this backflush gas will also disturb the water body in the filter housing 1, and the disturbed water body will also continuously wash the filter cakes and wash them down from the outer surface of the filter elements 5. During the above process, the gas entering the filter housing 1 will be discharged through the vent pipeline 10.

[0023] After backwashing for a period of time, stop injecting air into the backwashing pipeline 8, and let the filter housing 1 stand still for a certain period of time. During the standing process, the solid impurities will naturally settle and accumulate at the bottom of the lower head 4. Some impurities will fall through the gap between the partition box 14 and the inner wall of the filter housing 1, and some will fall through the slag discharge holes 19 opened on the partition box 14. Finally, open the drain pipeline 13 to discharge all the impurities and backwashing liquid, that is, the backwashing and cleaning operation of the filter element 5 is completed;

[0024] When it is necessary to clean the inner cavity of the filter housing 1, the cleaning liquid pipeline 11 can be opened and cleaning liquid can be injected into it.

Claims

1. A filter with a partitioned box, comprising a filter housing (1), characterized in that: The filter housing (1) is composed of three parts: an upper head (2), an intermediate cylinder (3), and a lower head (4) that are connected to each other. A partition box (14) is provided at the lower part of the inner cavity of the filter housing (1). The outer contour of the partition box (14) matches the cross-section of the inner cavity of the filter housing (1), and there is a gap between the partition box (14) and the inner wall of the filter housing (1). A plurality of filter elements (5) distributed in an array are connected to the top surface of the partition box (14). The outlet at the bottom end of the filter element (5) is communicated with the inner cavity of the partition box (14). A turbid liquid inlet pipeline (6) is connected to one side of the filter housing (1). A clarified liquid outlet pipeline (7) is connected to one side of the partition box (14), and the clarified liquid outlet pipeline (7) is located outside the filter housing (1). At the same time, a backflush pipeline (8) is also connected to the clarified liquid outlet pipeline (7). A plurality of slag discharge holes (9) distributed longitudinally are also provided on the partition box (14), and these slag discharge holes (9) are distributed in an array. An air vent pipeline (10) and a cleaning liquid pipeline (11) are provided at the top of the upper head (2). A liquid discharge pipeline (12) is provided on the intermediate cylinder (3), and the height of the inlet end of the liquid discharge pipeline (12) is higher than the top surface of the filter element (5). A drain pipeline (13) is provided at the bottom end of the lower head (4).

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