Filter capable of easily discharging residual liquid

Abstract

The utility model discloses a filter capable of easily discharging residual liquid, and belongs to the field of particulate matter or powder filtering equipment. The utility model discloses a filter capable of easily discharging residual liquid. The gland is detachably and hermetically connected with the tank body; the first filter element is arranged in the tank body, a first filter pipe is arranged above the first filter element, and the first filter pipes are connected through a first connecting pipe; the second filter element comprises a second filter pipe and a filter element section, and the filter element section is arranged at the bottom of the tank body; the first connecting pipe is connected with a clean liquid pipeline; the second filter element is connected with a clean liquid pipeline; and the first filter element and the second filter element are controlled by different valves. According to the filter capable of easily discharging the residual liquid, the residual dirty liquid in the filtering tank can be filtered and discharged through the filter element, the residual liquid in the filter element can be discharged, and before deslagging, the filtering efficiency of the filter is improved, the clean liquid yield is high, and cake removal is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of particulate or powder filtering equipment field, especially the filter field of residual liquid. BACKGROUND

[0002] Candle filter is filtered to liquid containing particles by forming filter cake, large particles are first formed filter cake, small particles are intercepted on filter cake, gradually making the liquid of filtration treatment from turbidity to clear.Candle filter needs to discharge liquid in filter tank when filter cake reaches certain thickness, filter cake is blasted by the way of internal and external air pressure difference, and filter cake is unloaded.

[0003] At present, candle filter uses high-pressure gas to blow first, and then the liquid in the tank is discharged through the clean liquid port.When the liquid level in the tank drops to a certain height, the filter core can intercept particles to form filter cake, but there are gaps, which make the outside of the filter tank communicate with the inside, resulting in a decrease in the pressure difference between the inside and outside of the tank, and the remaining residual liquid in the tank cannot be discharged, and can only be discharged through the dirty liquid discharge pipe.If the size of the tank is large, the amount of dirty liquid discharged is large, and most of the dirty liquid is directly discharged without filtration, resulting in low efficiency of the filter.In some cases, this part of the discharged dirty liquid has no place to store.

[0004] There is another situation, when the residual liquid in the tank is discharged, a part of the residual liquid in the filter core will seep out through the filter cloth, making the filter cake that has been dried wet again, resulting in that the filter cake is not dry and difficult to fall off.Especially when the filter core is long, the liquid accumulation is more, which affects the filter core to fall off filter cake. SUMMARY

[0005] The utility model discloses a kind of particulate filtering equipment, to solve the above technical problems.

[0006] Based on the above problems, the present solution is as follows.

[0007] A filter easy to discharge residual liquid, comprising:

[0008] Tank body;

[0009] Gland, which is detachably sealedly connected with the tank body;

[0010] First filter core, arranged in the tank body, and provided with a first filter pipe at the top, and the first filter pipe is connected with the first filter pipe through a first connecting pipe;

[0011] Second filter core, comprising a second filter pipe and a filter core section, and the filter core section is arranged at the bottom of the tank body;

[0012] The first connecting pipe connects the clean liquid pipeline;The second filter core connects the clean liquid pipeline;The first filter core and the second filter core are controlled by different valves.

[0013] As preferred, the first filter core is provided with an intermediate pipe, the intermediate pipe is a thin pipe, the intermediate pipe extends out of the first filter pipe and is connected with the first filter pipe through a quick connection mechanism.

[0014] As preferred, the intermediate pipe is connected with the intermediate pipe through a second connecting pipe, the second connecting pipe is provided with a fourth interface, and the fourth interface is connected with a liquid collecting tank.

[0015] As preferred, the liquid collecting tank is provided with an air suction port, the air suction port is connected with a fan, and the liquid collecting tank is also provided with a liquid inlet, the liquid inlet is connected with the second connecting pipe.

[0016] As preferred, the tank body is provided with a plurality of branch pipes distributed in parallel, the first connecting pipe is provided with a third interface, and the third interface is connected with the branch pipes.

[0017] As preferred, the tank body is provided with a liquid inlet pipe and a dirty liquid discharge pipe below, and the second filter core is located at the upper part of the dirty liquid discharge pipe.

[0018] As preferred, the tank body is provided with a tapered plate at the lower part, the second filter core passes through the tapered plate and is inserted into the tank body, the second filter core is provided with a positioning seat, the tapered plate is provided with a protruding cylinder, the cylinder is provided with a first flange, the second filter core is provided with a first cover plate, and the first cover plate is connected with the first flange through a quick connection mechanism.

[0019] As preferred, the second filter pipe is longer than the filter core section, the second filter pipe passes out of the gland and is detachably connected with the gland, and the filter core section of the second filter core is located at the bottom of the tank body.

[0020] As preferred, the gland is provided with a lifting mechanism and a rotating mechanism, which are used for lifting the gland to a certain height, rotating the gland by a certain angle to open the gland, rotating the gland again and then lowering the gland to connect the gland with the tank body.

[0021] As preferred, the lifting mechanism comprises a rotating frame and a power fixed on the rotating frame, the power is connected with a lead screw, the gland is provided with a nut threadedly connected with the lead screw, and the gland is provided with a guide rod which is slidingly connected with the rotating frame.

[0022] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0023] 1. The first filter core is used to discharge part of the filtrate, when the first filter core does not discharge liquid, the valve of the second filter core is opened, the second filter core is located at the bottom of the tank body and close to the residue discharge port, and the dirty liquid in the tank body can be further discharged through the second filter core; this makes the remaining dirty liquid in the tank body less, and the small amount of dirty liquid is discharged through the dirty liquid discharge pipe, so that the filtering efficiency of the filter is improved and the clean liquid yield is improved.

[0024] 2, through the center tube in the first filter core, the residual filtrate inside the filter core is discharged, avoiding the influence of cake leaching on cake removal.

[0025] 3, the first filter core and the first filter core are connected through the first connecting pipe, the middle pipe and the middle pipe are connected through the second connecting pipe, the first connecting pipe and the second connecting pipe are removed, the filter core can be taken out two by two, and the filter bag can be conveniently replaced.

[0026] 4, the lifting mechanism and the rotating mechanism are arranged on the gland, the gland can be automatically lifted and rotated by a certain angle, so that the gland can be opened, and the operation experience is better. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure diagram of the filter easy to discharge residual liquid of example 1.

[0028] Figure 2 It is another perspective exploded view of Figure 1 .

[0029] Figure 3 It is a partial sectional view of the first filter core in the tank body.

[0030] Figure 4 It is a top view of Figure 1 .

[0031] Figure 5 It is a partial sectional view of Figure 4 .

[0032] Figure 6 It is a structure diagram of the filter of example 2.

[0033] Figure 7 It is a sectional view of Figure 6 .

[0034] In the drawing: tank body 1, gland 2, first filter core 3, first filter pipe 30, first connecting pipe 4, third interface 40, second filter core 5, second filter pipe 50, positioning seat 51, first cover plate 52, middle pipe 6, center tube seat 60, second connecting pipe 7, fourth interface 70, branch pipe 8, clean liquid pipeline 9, residual liquid pipeline 10, liquid collecting tank 11, liquid inlet 110, fan 12, air suction port 120, rotating frame 13, rotating shaft 130, conductive rod 131, power 132, support seat 134. DETAILED DESCRIPTION

[0035] The utility model will be further described in combination with the drawings and specific embodiments:

[0036] Example 1:

[0037] As Figures 1-3As shown, a filter easy to drain liquid waste, comprising a filter tank body 1, a gland 2, a plurality of first filter elements 3 arranged in the tank body, a middle pipe 6 arranged in the middle of the first filter element 3, the middle pipe 6 being a thin pipe extending into the bottom of the first filter element 3 for draining the accumulated liquid in the first filter element 3. The first filter element 3 is provided with a first filter pipe 30, the first filter pipe 30 is connected with the first filter pipe 30 through a first connecting pipe 4, the middle pipe 6 passes through the first filter pipe 30 and is inserted into the first filter element 3, the middle pipe 6 is connected with the middle pipe 6 through a second connecting pipe 7.

[0038] As Figure 5 , a second filter element 5 is arranged at the bottom of the tank body, the second filter element 5 is shorter than the first filter element 3; a conical plate 100 is arranged below the tank body 1, the conical plate 100 is provided with a through hole, the second filter element 5 passes through the through hole of the conical plate 100, a cylinder protruding outward is arranged on the through hole, a first flange is arranged on the cylinder; the second filter element 5 is provided with a second filter pipe 50, the second filter pipe 50 is provided with a positioning seat 51 and a first cover plate 52, the cover plate 52 covers the first flange. The positioning seat 51 positions the second filter element 5 in the cylinder, and the first cover plate 52 and the first flange are sealingly connected. The tank body 1 is provided with a liquid inlet pipe 101 and a dirty liquid outlet pipe 102 below, and the second filter element 5 is located above the dirty liquid outlet pipe 102. The tank body 1 is provided with a residue outlet below the conical plate 100.

[0039] As Figure 2 , Figure 3 , a middle pipe seat 60 is arranged on the middle pipe 6, and the middle pipe 6 is welded or threadedly connected with the middle pipe seat 60. The middle pipe seat 60 is threadedly connected with the second connecting pipe 7, and the second connecting pipe 7 is connected with the first connecting pipe 4 through a quick connection disc. The first connecting pipe 4 is provided with a third interface 40; a branch pipe 8 is arranged in the tank body, and the third interface 40 is respectively overlapped on the branch pipe 8, a plurality of branch pipes 8 are distributed in parallel in the tank body 1, and the branch pipe 8 penetrates out of the tank body and is connected with a clean liquid pipeline 9 outside the tank body 1. A first valve 90 is arranged between the branch pipe 8 and the clean liquid pipeline 9. The clean liquid pipeline 9 is also connected with an air inlet pipeline (not shown in the figure). An air inlet is also arranged on the tank wall of the tank body 1, and the air inlet is connected with the air inlet pipeline (not shown in the figure).

[0040] In the installation sequence, the second connecting pipe 7 is first fixedly connected with the middle pipe 6, then the middle pipe 6 is sequentially inserted through the first connecting pipe 4 and the first filter element 3, and then the third interface 40 is overlapped on the branch pipe 8. The sequence of disassembling and replacing the filter element is that the quick connection mechanism between the second connecting pipe 7 and the first connecting pipe 4 is first opened, the second connecting pipe 7 takes out the middle pipe 6 from the inside of the first filter element 3, the first filter element 3 is connected with the first connecting pipe 4, and then the third interface 40 is disassembled, so that the first filter element 3 can be taken out.

[0041] As Figure 5A second filter element 5 is provided at the bottom of the tank body 1. The second filter element 5 is connected to the clean liquid pipeline 9. A second valve 91 is provided between the second filter element 5 and the clean liquid pipeline 9.

[0042] like Figure 1 , Figure 2 The second connecting pipe 7 is provided with a fourth interface 70. The fourth interface 70 is connected to a flexible tube, which is connected to the residual liquid pipe 10. The flexible tube can be a steel wire flexible tube. The residual liquid pipe 10 is also connected to the collection tank 11. The collection tank 11 is provided with a liquid inlet 110 and a suction port 120 of a fan 12. The fan 12 is used to evacuate the collection tank and draw the residual liquid in the first filter element 3 into the collection tank 11.

[0043] like Figure 5 The pressure cap 2 is also equipped with a pressure cap lifting mechanism and a rotating mechanism. The pressure cap can be lifted and then rotated via a rotating shaft 130 to open it, facilitating the removal of the filter element and replacement of the filter bag. The lifting mechanism includes a rotating frame 13 and a power source 132 fixed to the rotating frame. The power source 132 is connected to a lead screw. The pressure cap 2 is equipped with a nut threadedly connected to the lead screw. The pressure cap 2 also has a guide rod 131, which is slidably connected to the rotating frame 13. The power source 132 drives the lead screw to rotate, causing the pressure cap to move up and down with the guide rod 131. The rotating mechanism includes a rotating shaft 130 fixed to the rotating frame 13 and a support base 134. The rotating shaft 130 is rotatably connected to the support base 134, and the rotating shaft 130 is fixedly connected to the rotating frame 13. The pressure cap 2 is also equipped with a pressure gauge, a level gauge, etc.

[0044] Working principle:

[0045] like Figures 1-3 , Figure 5 The particulate-containing waste liquid enters the tank 1 through the inlet pipe 101. The valve 90 is opened, and the liquid is filtered through the first filter element 3. It is then discharged through the branch pipe 8 and the clean liquid pipe 9. A filter cake gradually forms on the surface of the filter element, and the clean liquid is discharged through the clean liquid pipe. When the thickness of the filter cake on the filter element increases and the particulate matter in the tank reaches its limit, the inlet pipe 101 is closed, and high-pressure gas is blown into the tank. The filtrate is first discharged through the clean liquid pipe 9. At this time, the liquid level in the tank gradually decreases, and part of the first filter element 3 is exposed above the liquid surface, causing the outside to communicate with the inside of the tank. The pressure difference between the inside and outside decreases, and no more liquid can be discharged through the first filter element. At this time, the valve 91 of the second filter element 5 is opened, and the remaining liquid in the tank continues to be discharged through the second filter element 5. In this way, all the residual dirty liquid in the tank can be filtered and discharged through the second filter element. The remaining small amount of dirty liquid is discharged through the dirty liquid drain pipe 102.

[0046] Because of the formation of filter cake, the filter cake is relatively dense, resulting in the residual liquid in the filter core cannot be discharged, at this time, the valve of the residual liquid discharge pipe 10 is opened, and the residual liquid in the filter core is discharged through the intermediate pipe 6 in the first filter core 3. The liquid is pumped into the liquid collecting tank 11 by the fan to discharge the residual liquid to the liquid collecting tank 11.

[0047] After the liquid remaining in the tank 1 or the first filter core 3 is discharged, the filter cake is repeatedly blown from the inside to the outside, and the filter cake is dried to fall into the slag discharge port, so that relatively dry granular slag is obtained.

[0048] Embodiment 2:

[0049] As Figure 6 , Figure 7 The difference between the embodiment 1 and the embodiment 2 is that the filter is smaller in size, the number of filter cores is smaller, the first filter pipe 30 is arranged on the first filter core 3, the first filter pipe 30 extends out of the gland 2 and is lapped with the filter pipe seat protruding on the gland 2, the intermediate pipe 6 is arranged in the first filter pipe 2, the second cover plate is arranged on the intermediate pipe 6, the second flange is arranged on the first filter pipe, and the cover plate of the intermediate pipe 6 is lapped on the second flange. The first filter pipe 30 is connected with the first filter pipe 30 through the first connecting pipe 4, and the intermediate pipe 6 is connected with the intermediate pipe 6 through the second connecting pipe 7 (not shown in the figure).

[0050] The second filter core 5 is arranged in the tank, the second filter core 5 includes a second filter pipe 50 and a filter core section, the second filter pipe 50 is much longer than the filter core section, the filter core section of the second filter core 5 is located at the bottom of the tank 1, and the second filter pipe 50 extends out of the gland 2 and is lapped with the filter pipe seat protruding on the gland 2.

[0051] The working mode of the filter in the embodiment 2 is the same as that in the embodiment 1, and the installation mode of the second filter core 5 is different. The second filter core 5 passes through the gland 2 and enters the tank, and the first filter core 3 and the second filter core 5 are both vertically suspended and fixed in the tank. The second filter core 5 is less shielded for the granular slag, and is more favorable for the tank to discharge the slag.

[0052] The mode of disassembling and replacing the filter core in the embodiment 2 is that the first connecting pipe 4 and the first connecting pipe 7 are disassembled, so that the first filter core 3 is taken out from the tank together with the intermediate pipe 6, and the filter core is conveniently replaced.

[0053] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve basically the same technical problem and achieve basically the same technical effect is covered in the protection scope of the present application.

Claims

1. A filter easy to drain the residual liquid, characterized in that, The utility model relates to a filter device, including: a tank body; a cover, which is detachably sealed to the tank body; a first filter element, which is arranged in the tank body and has a first filter pipe above it, and the first filter pipe is connected to the first filter pipe through a first connecting pipe; a second filter element, which includes a second filter pipe and a filter element section, and the filter element section is arranged at the bottom of the tank body; the first connecting pipe is connected to a clean liquid pipe line; the second filter element is connected to the clean liquid pipe line; the first filter element and the second filter element are controlled by different valves.

2. The filter of claim 1, wherein, The first filter element is provided with an intermediate pipe, which is a thin pipe, and the intermediate pipe extends out of the first filter pipe and is connected to the first filter pipe through a quick-connection mechanism.

3. The filter of claim 2, wherein, The intermediate pipe is connected to the intermediate pipe through a second connecting pipe; the second connecting pipe is provided with a fourth interface, and the fourth interface is connected to a liquid collecting tank.

4. The filter of claim 3, wherein, The liquid collecting tank is provided with an air suction port, and the air suction port is connected to a fan; the liquid collecting tank is also provided with a liquid inlet, and the liquid inlet is connected to the second connecting pipe.

5. The filter of claim 1, wherein, The tank body is provided with a plurality of branch pipes arranged in parallel; the first connecting pipe is provided with a third interface, and the third interface is connected to the branch pipes.

6. The filter of claim 1, wherein, The tank body is provided below with a liquid inlet pipe and a dirty liquid outlet pipe, and the second filter element is located above the dirty liquid outlet pipe.

7. The filter of claim 1, wherein, The tank body is provided below with a conical plate, and the second filter element passes through the conical plate and is inserted into the tank body; the second filter element is provided with a positioning seat, and the conical plate is provided with a protruding cylinder, and the cylinder is provided with a first flange; the second filter element is provided with a first cover plate, and the first cover plate is connected to the first flange through a quick-connection mechanism.

8. The filter of claim 1, wherein, The second filter pipe is longer than the filter element section, the second filter pipe passes out of the cover and is detachably connected to the cover; and the filter element section of the second filter element is located at the bottom of the tank body.

9. The filter of claim 1, wherein, The cover is provided with a lifting mechanism and a rotating mechanism, which are used to lift the cover to a certain height, rotate the cover by a certain angle to open the cover, and then rotate the cover and lower the cover to connect the cover to the tank body.

10. The filter of claim 9, wherein, The lifting mechanism includes a rotating frame and a power source fixed to the rotating frame, and the power source is connected to a lead screw; the cover is provided with a nut that is threadedly connected to the lead screw; the cover is provided with a guide rod that is slidingly connected to the rotating frame.

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