Filter capable of pre-filtering

Abstract

The filter comprises a bearing seat, a mother liquor filter is fixedly connected to the upper surface of the bearing seat, a discharging pipe of the mother liquor filter penetrates through the lower surface of the bearing seat, a balance bottom plate is fixedly connected to the lower end of the bearing seat, and a limiting plate is fixedly connected to the right surface of the balance bottom plate; a mounting frame is slidably connected to the upper end of the limiting plate, an external filter is fixedly connected to the upper surface of the mounting frame, a drainage pipe is fixedly connected between the upper end of the external filter and the upper end of the mother liquor filter, a discharging pipe of the external filter penetrates through the mounting frame, and a flow guide pipe is fixedly connected to the discharging pipe of the external filter; and the flow guide pipe is fixedly connected with a blanking pipe of the mother liquor filter. Through the structure, the filtering effect is improved, the stability of parts of the filter during use is improved, and the maintenance difficulty of the filter is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter capable of pre-filtering. Background Art

[0002] In the latest PTA production process, the filter element of the mother liquor filter has a filtration accuracy of 0.5μm, the solid content of the filtrate is 0.01-0.1, the temperature is around 78°C, and the flow rate is 52 tons / hour. In the early stage of mother liquor filtration, the TA solids in the filtrate have not been intercepted in the filter element, forming a layer of obstruction. Some small-particle TA solids will run downstream, causing TA loss. Therefore, before the filter is officially filtered, a pre-filtration step is added to allow TA to form an obstruction in the filter element, thereby increasing the filtration effect during formal filtration and reducing TA loss. Utility Model Content

[0003] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art, and to provide a pre-filtering filter, in which an external filter is arranged outside the mother liquid filter to achieve the pre-filtration effect, and to improve the stability of the overall filter components during operation, thereby reducing the difficulty of filter maintenance.

[0004] The utility model also provides the above-mentioned pre-filtering filter, comprising: a load-bearing seat, the upper surface of the load-bearing seat is fixedly connected to a mother liquid filter, the discharge pipe of the mother liquid filter passes through the lower surface of the load-bearing seat, the lower end of the load-bearing seat is fixedly connected to a balancing base plate, the right surface of the balancing base plate is fixedly connected to a limiting plate, the upper end of the limiting plate is slidably connected to a mounting bracket, the upper surface of the mounting bracket is fixedly connected to an external filter, a drainage pipe is fixedly connected between the upper ends of the external filter and the mother liquid filter, the discharge pipe of the external filter passes through the mounting bracket, the discharge pipe of the external filter is fixedly connected to a guide pipe, and the guide pipe is fixedly connected to the discharge pipe of the mother liquid filter.

[0005] According to the pre-filtering filter of the present invention, the drainage pipe is fixedly connected to the reserved hole of the mother liquid filter itself, and the surfaces of the drainage pipe and the flow guide pipe are fixedly connected with a solenoid valve, thereby improving the convenience of repairing the drainage pipe and the flow guide pipe.

[0006] According to the pre-filtering filter of the present invention, the mounting frame is composed of an automatic telescopic rod, a roller, and a mounting plate, and the external filter is fixedly connected to the upper surface of the mounting plate, thereby improving the convenience of maintaining the mounting frame.

[0007] According to the pre-filtering filter of the present invention, the roller is located inside the groove of the limit plate and is rotatably connected to the lower end of the automatic telescopic rod, and the mounting plate is fixedly connected to the upper surface of the automatic telescopic rod. The convenience of the mobile mounting frame.

[0008] The utility model relates to a filter of prefiltration, the limiting board is the folding structure, and the folding part of limiting board is in close contact with the right surface of right side automatic telescopic rod.

[0009] The utility model relates to a filter of prefiltration, the upper surface of bearing seat is fixedly connected with the reinforcing vertical board, and the upper surface of reinforcing vertical board is in close contact with the lower surface of mounting plate.

[0010] The utility model relates to a filter of prefiltration, and the folding part between mounting plate and reinforcing vertical board of limiting board and between right side automatic telescopic rod is provided with fixed bolt.

[0011] The utility model relates to a filter of prefiltration, the lower surface of mounting plate is fixedly connected with the corrugated sleeve, the lower end of corrugated sleeve is fixedly connected with the upper surface of limiting board, and automatic telescopic rod is located in the inside of corrugated sleeve.

[0012] Beneficial effects:

[0013] 1、compared with the prior art, the filter of prefiltration forms the external prefiltration structure through bearing seat, balance bottom plate, mounting frame, external filter, drainage pipe, guide pipe and electromagnetic valve, improves the effect of filter, and the external prefiltration structure improves the convenience of overhauling filter.

[0014] 2、compared with the prior art, the filter of prefiltration improves the stability of external prefiltration structure when using through balance plate, limiting board, automatic telescopic rod, mounting plate, gyro wheel and fixed bolt, and improves the condition of quickly moving away from filter body for external prefiltration mechanism, further improves the convenience of overhauling external prefiltration mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further explained in connection with the drawings and examples;

[0016] Figure 1 It is right view structural drawing of filter of prefiltration of the utility model;

[0017] Figure 2 It is left view structural drawing of filter of prefiltration of the utility model;

[0018] Figure 3 It is the bottom view structural drawing of filter of prefiltration of the utility model;

[0019] Figure 4The utility model discloses a filter with pre-filtering function Figure 2 The enlarged structural view of A in the middle.

[0020] Legend:

[0021] 1, bearing seat, 2, mother liquor filter, 3, balance bottom plate, 4, limiting plate, 5, mounting frame, 6, external filter, 7, reinforcing vertical plate, 8, drainage pipe, 9, flow guide pipe, 10, electromagnetic valve, 11, corrugated sleeve, 12, automatic telescopic rod, 13, mounting plate, 14, roller, 15, fixing bolt. Specific embodiments

[0022] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] With reference to Figures 1-4 , the utility model discloses a filter with pre-filtering function, which comprises a bearing seat 1, the upper surface of the bearing seat 1 is fixedly connected with a mother liquor filter 2, the discharge pipe of the mother liquor filter 2 penetrates the lower surface of the bearing seat 1, the lower end of the bearing seat 1 is fixedly connected with a balance bottom plate 3, and the above-mentioned devices are matched with each other to form the basic structure of the filter, the upper surface of the bearing seat 1 is fixedly connected with a reinforcing vertical plate 7, the upper surface of the reinforcing vertical plate 7 is in close contact with the lower surface of a mounting plate 13, and the reinforcing vertical plate 7 is used to improve the stability when the mounting plate 13 acts.

[0024] The right surface of the balance bottom plate 3 is fixedly connected with a limiting plate 4, the upper end of the limiting plate 4 is slidably connected with a mounting frame 5, the limiting plate 4 is of a folding structure, the folding part of the limiting plate 4 is in close contact with the right surface of the automatic telescopic rod 12 located on the right side, the limiting plate 4 is used to provide the condition of fixed-range sliding for the mounting frame 5, wherein the folding part of the limiting plate 4 is used to limit the stability of the mounting frame 5 in the use state, fixing bolts 15 are arranged between the mounting plate 13 and the reinforcing vertical plate 7 and between the folding part of the limiting plate 4 and the automatic telescopic rod 12 located on the right side, and the fixing bolts 15 are used to improve the effect of the limiting plate 4 and the reinforcing vertical plate 7.

[0025] The mounting frame 5 is composed of an automatic telescopic rod 12, a roller 14 and a mounting plate 13. The external filter 6 is fixedly connected to the upper surface of the mounting plate 13. The roller 14 is located in the groove of the limiting plate 4 and is rotatably connected to the lower end of the automatic telescopic rod 12. The roller 14 is used to reduce the friction between the automatic telescopic rod 12 and the limiting plate 4. The mounting plate 13 is fixedly connected to the upper surface of the automatic telescopic rod 12. The automatic telescopic rod 12 is used to change the height of the mounting plate 13. The lower surface of the mounting plate 13 is fixedly connected with a corrugated sleeve 11. The lower end of the corrugated sleeve 11 is fixedly connected to the upper surface of the limiting plate 4. The automatic telescopic rod 12 is located in the corrugated sleeve 11. The corrugated sleeve 11 is made of waterproof material and is used to prevent the automatic telescopic rod 12 from being damaged by external rain and dust.

[0026] The upper surface of the mounting frame 5 is fixedly connected with an external filter 6. The external filter 6 is used to filter the feed filtrate. A drainage tube 8 is fixedly connected between the upper ends of the external filter 6 and the mother liquor filter 2. The discharge pipe of the external filter 6 penetrates the mounting frame 5. The discharge pipe of the external filter 6 is fixedly connected with a flow guide pipe 9. The flow guide pipe 9 is fixedly connected with the discharge pipe of the mother liquor filter 2. The drainage tube 8 is fixedly connected with a reserved hole of the mother liquor filter 2. The reserved hole is a reserved hole with a diameter of three inches. The surfaces of the drainage tube 8 and the flow guide pipe 9 are fixedly connected with electromagnetic valves 10. The drainage tube 8 and the flow guide pipe 9 cooperate with each other to transfer the feed filtrate between the mother liquor filter 2 and the external filter 6.

[0027] Working principle: Before formal filtering, the feed filtrate is guided to the external filter 6 by the drainage tube 8, so that a layer of filter cake is formed in the filter core first, and then the formal filtering step is performed, thereby reducing the entry of solid particles into the downstream equipment. The model of the mother liquor filter 2 is "M-521A / B", the model of the external filter 6 is "F-506", the drainage tube 8 and the flow guide pipe 9 are "cross line SV-50540-3", and the models of the electromagnetic valves 10 located in the drainage tube 8 and the flow guide pipe 9 are "XSV-05528 / 65528", respectively. When a large-scale overall maintenance of the filter is required, first, the drainage tube 8 and the flow guide pipe 9 are separated from the external filter 6, then the fixed bolts 15 are removed to limit the mounting frame 5, and then the folded part on the right side of the limiting plate 4 is flattened. At this time, the mounting frame 5 can be pushed to the right side, so that the mounting frame 5 is away from the mother liquor filter 2 and the pipe area. Then the height of the external filter 6 is changed until the maintenance personnel can stand on the ground to touch the external filter 6. In this case, the maintenance personnel can be divided into two groups, one group climbs to maintain the mother liquor filter 2, and the other group maintains the external filter 6 on the ground, thereby further improving the convenience of maintaining the filter.

[0028] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A prefilterable filter, characterized by Include: The upper surface of the load-bearing seat (1) is fixedly connected with the mother liquor filter (2), the lower discharge pipe of the mother liquor filter (2) penetrates the lower surface of the load-bearing seat (1), the lower end of the load-bearing seat (1) is fixedly connected with the balance bottom plate (3), the right surface of the balance bottom plate (3) is fixedly connected with the limiting plate (4), the upper end of the limiting plate (4) is slidingly connected with the mounting bracket (5); The upper surface of the mounting bracket (5) is fixedly connected with the external filter (6), the external filter (6) and the mother liquor filter (2) are fixedly connected with the drainage tube (8) between the upper ends, the lower discharge pipe of the external filter (6) penetrates the mounting bracket (5), the lower discharge pipe of the external filter (6) is fixedly connected with the flow guide pipe (9), and the flow guide pipe (9) is fixedly connected with the lower discharge pipe of the mother liquor filter (2).

2. A prefilterable filter according to claim 1, wherein, The drainage tube (8) is fixedly connected with the reserved hole of the mother liquor filter (2) itself, and the surfaces of the drainage tube (8) and the flow guide pipe (9) are fixedly connected with the electromagnetic valve (10).

3. A prefilterable filter according to claim 1, wherein The mounting bracket (5) is composed of an automatic telescopic rod (12), a roller (14) and a mounting plate (13), and the external filter (6) is fixedly connected with the upper surface of the mounting plate (13).

4. A prefilterable filter according to claim 3, wherein The roller (14) is located in the groove of the limiting plate (4) and is rotatably connected with the lower end of the automatic telescopic rod (12), and the mounting plate (13) is fixedly connected with the upper surface of the automatic telescopic rod (12).

5. A prefilterable filter according to claim 4, wherein, The limiting plate (4) is of a folding structure, and the folded part of the limiting plate (4) is in close contact with the right surface of the right automatic telescopic rod (12).

6. A prefilterable filter according to claim 5, wherein, The upper surface of the load-bearing seat (1) is fixedly connected with the reinforcing vertical plate (7), and the upper surface of the reinforcing vertical plate (7) is in close contact with the lower surface of the mounting plate (13).

7. A prefilterable filter according to claim 5, wherein, The fixing bolts (15) are arranged between the mounting plate (13) and the reinforcing vertical plate (7), and between the folded part of the limiting plate (4) and the right automatic telescopic rod (12).

8. A prefilterable filter according to claim 3, wherein The lower surface of the mounting plate (13) is fixedly connected with the corrugated sleeve (11), the lower end of the corrugated sleeve (11) is fixedly connected with the upper surface of the limiting plate (4), and the automatic telescopic rod (12) is located in the corrugated sleeve (11).

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