CN210825642U

CN210825642U - Diatomite filter for sewage treatment

Info

Publication number: CN210825642U
Application number: CN201921480655.8U
Authority: CN
Inventors: 田云龙; 申进忠
Original assignee: Hebei Bijing Environmental Protection Technology Co Ltd
Current assignee: Hebei Bijing Environmental Protection Technology Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-06-23
Anticipated expiration: 2029-09-06

Abstract

The utility model relates to a diatomite filter for sewage treatment, which comprises a shell, 2 filtering devices arranged in the shell, a plurality of sewage inlet pipes and sludge discharge ports arranged on the shell, wherein each filtering device comprises a rotating shaft which is rotatably arranged in the shell and a filtering component which is fixedly arranged on the rotating shaft, the filtering component comprises a plurality of diatomite filtering sheets and a plurality of spacing pads which are sleeved outside the rotating shaft, the diatomite filtering sheets and the spacing pads are alternately arranged, one side of each diatomite filtering sheet is provided with a abdicating space, the inside of the rotating shaft is hollow, a plurality of water through holes are arranged on the side wall of the rotating shaft, and the other end of the rotating shaft is provided with a purified water outlet; 2 individual filter equipment's diatomaceous earth filter plate sets up in the crisscross setting, and a filter equipment's diatomaceous earth filter plate sets up in the space of stepping down on another filter equipment. The utility model discloses can be high-efficient quick get rid of mud in the sewage, and the difficult jam of filter membrane, can regenerate.

Description

Diatomite filter for sewage treatment

Technical Field

The utility model relates to a sewage treatment device, concretely relates to diatomaceous earth filter for sewage treatment.

Background

In order to reduce the pollution of environment and water, town domestic sewage and industrial and agricultural high-concentration wastewater are always discharged after being purified, sludge with a certain degree often exists in the wastewater, the conventional methods for purifying the wastewater comprise the processes of precipitation, filtration, active microbial degradation and the like, the process is long and the period is long, in addition, in the purification process, because the precipitation is not thorough or suspended matters difficult to precipitate exist, a filter membrane is blocked in the filtration process, the filter membrane is frequently replaced, and the water treatment cost is improved, so that a sewage purification device which can efficiently and quickly remove the sludge in the sewage, is difficult to block the filter membrane and can regenerate is urgently needed, and the problems are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a diatomaceous earth filter for sewage treatment, it can be high-efficient quick get rid of in the sewage mud, and the difficult jam of filter membrane, can regenerate.

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

a diatomite filter for sewage treatment comprises a shell, 2 filtering devices arranged in the shell, a plurality of sewage inlets arranged at the top of the shell, and a sludge discharge port arranged at the bottom of the shell, wherein each filtering device comprises a rotating shaft rotationally arranged in the shell and a filtering assembly fixedly arranged on the rotating shaft, each filtering assembly comprises a plurality of diatomite filtering sheets and a plurality of spacing pads, the diatomite filtering sheets and the spacing pads are alternately arranged, annular yielding spaces are arranged at positions, corresponding to the spacing pads, on one side of each diatomite filtering sheet, the rotating shaft is hollow, a plurality of water passing holes are formed in positions, corresponding to the diatomite filtering sheets, on the side wall of the rotating shaft, and a purified water outlet is formed at the other end of the rotating shaft;

2 individual filter equipment's diatomaceous earth filter plate sets up in the crisscross, and filter equipment's diatomaceous earth filter plate inserts and locates in the corresponding space of stepping down on another filter equipment.

Furthermore, a gap is arranged between the diatomite filter sheet of one filter device and the corresponding spacer on the other filter device.

Furthermore, the diatomite filter sheet is hollow, and the water through holes are formed in the position corresponding to the hollow interior of the diatomite filter sheet.

Furthermore, the filtering component is fixedly arranged on the rotating shaft through 2 large nuts, the 2 large nuts are arranged on two sides of the filtering component and are in threaded connection with the rotating shaft, and a polytetrafluoroethylene sealing gasket is arranged between the large nuts and the filtering component.

Furthermore, the rotating shafts of 2 filtering devices are in transmission connection through a chain wheel and a chain, wherein the rotating shafts of 1 filtering device are in transmission connection with a motor.

Furthermore, a sludge discharge pipe and a first circulating pipe communicated with the sludge discharge pipe are arranged at the sludge discharge port; the sludge discharge pipe is arranged in the middle of the first circulating pipe, a gravity sludge discharge port and a pump sludge discharge port are respectively arranged at two ends of the first circulating pipe, a circulating pump is arranged on the first circulating pipe, and the circulating pump is arranged between the pump sludge discharge port and the sludge discharge pipe.

Furthermore, a second circulating pipe is arranged on the first circulating pipe, one end of the second circulating pipe is arranged between the pump sludge discharge port and the circulating pump, and a sewage inlet pipe communicated with the plurality of sewage inlets is arranged at the other end of the second circulating pipe.

Furthermore, a fifth valve is arranged on the sludge discharge pipe, a second valve is arranged on the second circulating pipe, a first valve, a third valve, a fourth valve and a sixth valve are arranged on the first circulating pipe, the first valve is arranged at the end part, close to the sludge discharge port of the pump, of the first circulating pipe, the sixth valve is arranged at the end part, close to the sludge discharge port of the gravity, of the first circulating pipe, and the third valve and the fourth valve are arranged on two sides of the circulating pump on the first circulating pipe.

Furthermore, one side of the shell, which is close to the purified water outlet, is provided with a drain pipe communicated with the two purified water outlets, and the other end of the drain pipe is provided with a water suction pump.

Furthermore, 2 filtering devices are arranged along the vertical direction, an upper filtering device is arranged above the filtering devices, and a lower filtering device is arranged below the filtering devices; go up filter equipment and go up the space stop pad and set up in the left side of corresponding diatomaceous earth filter, lower filter equipment goes up the space stop pad and sets up in the right side of corresponding diatomaceous earth filter. Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses utilize the natural pore structure of diatomaceous earth, adopt the diatomaceous earth filter disc to filter sewage, not only realized the filtration treatment of sewage, can also implant active microorganism for sewage treatment in the pore of diatomaceous earth, utilize active microorganism to decompose the organic matter in the sewage, thereby reach the purpose of sewage purification, in addition, because the filter disc that the filter disc adopted the diatomaceous earth material, after the filter disc blocks up, only need to dismantle it, high temperature roasting can regenerate, makes it resume porous structure; the utility model discloses a 2 individual filter equipment carry out purification treatment to sewage, and 2 individual filter equipment's crisscross setting of diatomaceous earth, and a filter equipment's diatomaceous earth cassette sets up in the space of stepping down on another filter equipment, when 2 diatomaceous earth rotate the operation simultaneously, this design can scrape the mud of adhesion on the diatomaceous earth cassette and fall, prolongs the jam time of diatomaceous earth cassette to the calcination regeneration cycle of diatomaceous earth cassette has been prolonged.

Drawings

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

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic structural view of another angle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a preferred embodiment of the present invention.

In the figure: 1. the device comprises a shell, 2, a sewage inlet, 3, a sludge discharge port, 4, a rotating shaft, 5, a diatomite filter plate, 6, a spacer, 7, a relief space, 8, a water through hole, 9 and a purified water outlet; 10. the device comprises a gap 11, a large nut 12, a sealing washer 13, a sludge discharge pipe 14, a first circulation pipe 15, a gravity sludge discharge port 16, a pump sludge discharge port 18, a circulation pump 19, a second circulation pipe 20, a fifth valve 21, a second valve 22, a first valve 23, a third valve 24, a fourth valve 25, a sixth valve 26, a drain pipe 27, an upper filtering device 28, a lower filtering device 29, a rack 30 and a sewage inlet pipe. Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

An embodiment of a diatomite filter for sewage treatment as shown in fig. 1-4 comprises a frame 29, a housing 1 fixedly arranged on the frame 29, upper and lower 2 filtering devices arranged in the housing 1, a plurality of sewage inlets 2 arranged at the top of the housing 1, a sludge discharge port 3 arranged at the bottom of the housing 1, wherein the filtering devices comprise a rotating shaft 4 rotatably arranged in the housing 1, and a filtering component fixedly arranged on the rotating shaft 4 through 2 big nuts 11, the filtering component comprises a plurality of diatomite filtering sheets 5 and a plurality of spacing pads 6 sleeved outside the rotating shaft 4, the diatomite filtering sheets 5 and the spacing pads 6 are equal in number, the diatomite filtering sheets 5 and the spacing pads 6 are alternately arranged, one side of the diatomite filtering sheets 5 and the corresponding positions of the spacing pads 6 are provided with annular yielding spaces 7, the rotating shaft 4 is hollow, a plurality of water passing holes 8 are formed in the side wall of the rotating shaft 4 at positions corresponding to the diatomite filter sheets 5, and a purified water outlet 9 is formed in the other end of the rotating shaft 4; the spacer 6 on the upper filter device 27 is arranged at the left side of the corresponding diatomite filter 5, and the spacer 6 on the lower filter device 28 is arranged at the right side of the corresponding diatomite filter 5; the diatomite filter sheets 5 on the upper filter device 27 and the diatomite filter sheets 5 on the lower filter device are arranged in a staggered mode, the diatomite filter sheets 5 on the upper filter device 27 are inserted into corresponding abdicating spaces 7 on the lower filter device 28, gaps 10 are formed between the diatomite filter sheets 5 on the upper filter device 27 and the corresponding spacing pads 6 on the lower filter device 28, the diatomite filter sheets 5 on the lower filter device 28 are inserted into the corresponding abdicating spaces 7 on the upper filter device 27, gaps 10 are formed between the diatomite filter sheets 5 on the upper filter device 27 and the corresponding spacing sheets on the upper filter device 27, and the gaps 10 are about 2 cm; the thickness of diatomaceous earth filter plate 5 and the corresponding thickness looks adaptation of the space of stepping down 7, perhaps the thickness of diatomaceous earth filter plate 5 slightly is less than the thickness of the space of stepping down 7 guarantees that filter equipment can rotate.

Furthermore, the diatomite pores of the diatomite filter sheet 5 are implanted with active microorganisms for sewage treatment.

Furthermore, two ends of the rotating shaft 4 are respectively connected with the left side wall and the right side wall of the shell 1 through bearings in a rotating mode.

Furthermore, the spacer 6 is a sealing gasket made of teflon, and the rotating shaft 4 is made of 304 stainless steel.

Furthermore, 2 big nuts 11 are respectively arranged on both sides of the filtering component and are in threaded connection with the rotating shaft 4, and a polytetrafluoroethylene sealing gasket 12 is arranged between the big nuts 11 and the filtering component.

Furthermore, the rotating shafts 4 of the 2 filtering devices are in transmission connection through chain wheels and chains, wherein the rotating shafts 4 of the 1 filtering device are in transmission connection with a motor.

As the utility model relates to a preferred embodiment of diatomaceous earth filter for sewage treatment, the thickness of diatomaceous earth filter 5 is 2cm, the inside cavity of diatomaceous earth filter 5, cross water hole 8 set up in with the inside corresponding position of diatomaceous earth filter 5 cavity, the inside thickness of diatomaceous earth filter 5 cavity is 1cm, the 5 side wall thickness of diatomaceous earth filter is 0.5 cm. When diatomaceous earth filter 5 is solid, sewage need can get into 4 insides of pivot through whole diatomaceous earth filter 5, and set up diatomaceous earth filter 5 inside to inside cavity, and inside sewage only need can get into the cavity through any one wall thickness of diatomaceous earth filter 5, and then get into inside pivot 4.

As a preferred embodiment of the diatomite filter for sewage treatment of the utility model, a sludge discharge pipe 13 and a first circulation pipe 14 communicated with the sludge discharge pipe 13 are arranged at the sludge discharge port 3; the sludge discharge pipe 13 is arranged in the middle of the first circulation pipe 14, a gravity sludge discharge port 15 and a pump sludge discharge port 16 are respectively arranged at two ends of the first circulation pipe 14, a circulation pump 18 is arranged on the first circulation pipe 14, and the circulation pump 18 is arranged between the pump sludge discharge port 16 and the sludge discharge pipe 13.

Further, the gravity sludge discharge port 15 is communicated with a sewage tank.

Furthermore, a second circulating pipe 19 is arranged on the first circulating pipe 14, one end of the second circulating pipe 19 is arranged between the pump sludge discharge port 16 and the circulating pump 18, and a sewage inlet pipe 30 communicated with the plurality of sewage inlets 2 is arranged at the other end of the second circulating pipe 19.

A drain pipe 26 for communicating the two purified water outlets 9 is arranged at one side of the shell 1 close to the purified water outlets 9, during the operation of the utility model, the sewage entering the hollow interior of the diatomite filter 5 and then entering the rotating shaft 4 requires a high pressure in the housing 1 to generate a sufficient pressure difference between the inside and the outside of the diatomite filter 5, and if the pressure difference is realized only by the circulating pump 18, the requirement on the lift of the circulating pump 18 is large, the shell 1 needs to be in a high pressure state, the pressure resistance requirements on the sealing gasket, the spacing gasket 6, the shell 1 and the like are high, in order to solve the problem, the other end of the water discharge pipe 26 of the utility model is provided with a water suction pump, the pressure in the rotating shaft 4 is reduced by the water suction pump, the aim of reducing the pressure in the shell 1 is achieved under the same pressure difference requirement, so that the requirements of components in the shell 1 on high pressure resistance are reduced.

Further, a fifth valve 20 is arranged on the sludge discharge pipe 13, a second valve 21 is arranged on the second circulation pipe 19, a first valve 22, a third valve 23, a fourth valve 24 and a sixth valve 25 are arranged on the first circulation pipe 14, the first valve 22 is arranged at the end part, close to the sludge discharge port 16 of the pump, of the first circulation pipe 14, the sixth valve 25 is arranged at the end part, close to the gravity sludge discharge port 15, of the first circulation pipe 14, and the third valve 23 and the fourth valve 24 are arranged at two sides of the circulation pump 18 on the first circulation pipe 14.

The utility model discloses a use method:

step one, water feeding: opening a sixth valve 25, a fourth valve 24, a third valve 23 and a second valve 21, closing a fifth valve 20 and a first valve 22, starting the circulating pump 18, and allowing sewage in the sewage tank to enter from the gravity sludge discharge port 15 under the action of the circulating pump 18 and enter the shell 1 along the first circulating pipe 14, the second circulating pipe 19 and the water inlet pipe;

and step two, operation and gravity sludge discharge: after a certain amount of sewage enters the shell 1, opening the valve five 20, simultaneously starting the motor and the water pump to enable the rotating shaft 4 to be in a rotating state, under the action of the water pump, the sewage enters the hollow interior of the diatomite filter 5 after being filtered and purified by the diatomite filter 5 and then enters the rotating shaft 4 through the water hole 8, then is discharged by the water discharge pipe 26, and the sludge intercepted outside the diatomite filter 5 is mixed with the sewage and enters the circulating pipe one 14 through the sludge discharge pipe 13, meanwhile, the sewage in the sewage tank also continuously enters the circulating pipe one 14, and enters the shell 1 after being mixed with the sludge in the sludge discharge pipe 13, in addition, in the operation process, the circulating pump 18 intermittently works, is opened for 2min and is stopped for 1min, when the circulating pump 18 is in an opening state, the internal circulation process of the sewage and the sludge is completed, when the circulating pump 18 is in a stop state, closing the valve IV 24, the valve VI 25 and the valve V20 to keep an open state, no new sewage enters the water inlet pipe, and the sludge in the shell 1 enters the circulating pipe I14 along the sludge discharge pipe 13 and is discharged into a sewage pool through the gravity sludge discharge port 15;

step three, pumping to discharge mud: when the utility model is operated for a period of time, the six 25 and the two 21 valves are closed, the five 20 valves, the four 24 valves, the three 23 valves and the one 22 valves are kept in an open state, at the moment, the sludge in the shell 1 enters the first circulating pipe 14 along the sludge discharge pipe 13 and is discharged through the sludge discharge port 16 of the pump.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. The diatomite filter for sewage treatment is characterized by comprising a shell (1), 2 filtering devices arranged in the shell (1), a plurality of sewage inlets (2) arranged at the top of the shell (1), and a sludge discharge port (3) arranged at the bottom of the shell (1), wherein the filtering devices comprise a rotating shaft (4) which is rotatably arranged in the shell (1), and a filtering component which is fixedly arranged on the rotating shaft (4), the filtering component comprises a plurality of diatomite filter sheets (5) and a plurality of spacing pads (6) which are sleeved outside the rotating shaft (4), the diatomite filter sheets (5) and the spacing pads (6) are alternately arranged, one side of each diatomite filter sheet (5) and the corresponding position of each spacing pad (6) are provided with an annular abdicating space (7), the inside of the rotating shaft (4) is hollow, a plurality of water passing holes (8) are formed in the side wall of the rotating shaft (4) and correspond to the diatomite filter sheets (5), and a purified water outlet (9) is formed in the other end of the rotating shaft (4);

the diatomite filter sheets (5) of the 2 filter devices are arranged in a staggered mode, and the diatomite filter sheet (5) of one filter device is inserted into the corresponding abdicating space (7) of the other filter device.

2. A diatomite filter for sewage treatment as claimed in claim 1, characterized in that a gap (10) is provided between the diatomite filter sheet (5) of one filter unit and the corresponding spacer (6) of the other filter unit.

3. A diatomite filter for sewage treatment as claimed in claim 1, wherein the diatomite filter sheet (5) is hollow inside, and the water through holes (8) are arranged at the positions corresponding to the hollow inside of the diatomite filter sheet (5).

4. A diatomite filter for sewage treatment as claimed in claim 1, wherein said filtering component is fixedly arranged on said rotating shaft (4) through 2 large nuts (11), 2 large nuts (11) are arranged on both sides of said filtering component and are in threaded connection with said rotating shaft (4), and a polytetrafluoroethylene sealing washer (12) is arranged between said large nuts (11) and said filtering component.

5. A diatomite filter for sewage treatment as claimed in claim 1, wherein the rotating shafts (4) of 2 filtering devices are in transmission connection through a chain wheel and a chain, and the rotating shafts (4) of 1 filtering device are in transmission connection with a motor.

6. A diatomite filter for sewage treatment as claimed in claim 1, wherein a sludge discharge pipe (13) and a first circulation pipe (14) communicated with the sludge discharge pipe (13) are arranged at the sludge discharge port (3); the sludge discharge pipe (13) is arranged in the middle of the first circulating pipe (14), the two ends of the first circulating pipe (14) are respectively provided with a gravity sludge discharge port (15) and a pump sludge discharge port (16), the first circulating pipe (14) is provided with a circulating pump (18), and the circulating pump (18) is arranged between the pump sludge discharge port (16) and the sludge discharge pipe (13).

7. The diatomite filter for sewage treatment as recited in claim 6, wherein a second circulation pipe (19) is arranged on the first circulation pipe (14), one end of the second circulation pipe (19) is arranged between the pump sludge discharge port (16) and the circulation pump (18), and a sewage inlet pipe (30) communicated with the plurality of sewage inlets (2) is arranged at the other end of the second circulation pipe (19).

8. The diatomite filter for sewage treatment as recited in claim 7, wherein a valve five (20) is arranged on the sludge discharge pipe (13), a valve two (21) is arranged on the circulation pipe two (19), a valve one (22), a valve three (23), a valve four (24) and a valve six (25) are arranged on the circulation pipe one (14), the valve one (22) is arranged at the end part of the circulation pipe one (14) close to the pump sludge discharge port (16), the valve six (25) is arranged at the end part of the circulation pipe one (14) close to the gravity sludge discharge port (15), and the valve three (23) and the valve four (24) are arranged at two sides of the circulation pump (18) on the circulation pipe one (14).

9. A diatomite filter for sewage treatment as claimed in claim 1, wherein a drain pipe (26) communicating the two purified water outlets (9) is arranged at one side of the housing (1) close to the purified water outlets (9), and a suction pump is arranged at the other end of the drain pipe (26).

10. A diatomite filter for sewage treatment as claimed in any one of claims 1-9, wherein 2 filtering devices are arranged along the vertical direction, an upper filtering device (27) is arranged at the upper part, and a lower filtering device (28) is arranged at the lower part; go up spacer (6) on filter equipment (27) and set up in the left side of corresponding diatomaceous earth filter (5), spacer (6) set up in the right side of corresponding diatomaceous earth filter (5) on lower filter equipment (28).