CN214096858U

CN214096858U - Detection apparatus for domestic sewage mud

Info

Publication number: CN214096858U
Application number: CN202120054367.7U
Authority: CN
Inventors: 毕浩彬
Original assignee: Guangzhou Huadu Drainage Co ltd
Current assignee: Guangzhou Huadu Drainage Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-31
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a detection apparatus for domestic sewage mud, including funnel, gas outlet, barometer, gyro wheel and limiting plate, be fixed with the lock ring on the funnel, the lock ring inboard is fixed with the retainer plate, install the dead lever on the retainer plate, the gas outlet is fixed on first buchner flask, and is connected with the rubber tube on the gas outlet, the funnel bottom is fixed with the screw thread bottle lid, sealed rubber ring has been placed under the screw thread bottle lid, the barometer is installed on the breathing pipe, the breathing pipe is fixed on the vacuum pump, be connected with the outlet duct on the vacuum pump, the funnel bottom is provided with the outlet pipe, first buchner flask right side is connected with the second buchner flask. This detection device of domestic sewage mud, the funnel each other closes tooth spiral bayonet socket with the body interface of suction filtration bottle device, through the tight rubber sealing ring of spiral bayonet socket joint crimping for whole gas tightness can guarantee, avoids hand funnel's unstability and causes the interior negative pressure fluctuation of bottle and the risk that the funnel inclines to fall.

Description

Detection apparatus for domestic sewage mud

Technical Field

The utility model relates to the technical field, specifically be a detection device of domestic sewage mud.

Background

At present, most sewage treatment plants in China adopt an activated sludge process to treat domestic sewage, and after activated sludge treatment and sewage purification which is artificially strengthened are carried out for a period of time, excess sludge is formed, if the concentration of the sludge is too high or the activity of the sludge is poor, the production process and the sewage treatment cost are seriously influenced, therefore, sewage treatment plant is reasonable adjustment activated sludge and excess sludge's reasonable ratio concentration, require that laboratory every day an important work be exactly to detect activated sludge and excess sludge in the domestic sewage, utilize the testing data to discharge some activated sludge that lacks, form excess sludge and get into sludge drying system and carry out the heat drying and handle, sewage treatment plant's daily management focus is exactly to monitoring management to the mixed liquid suspended solid of activated sludge and excess sludge, and current domestic sewage sludge's detection device:

(1) the Buchner funnel is mostly adopted to filter domestic sewage, and the Buchner funnel needs to be supported by hands of workers in the use process, so that the Buchner funnel is easy to shake and inconvenient to operate;

(2) the filtration pore diameter of buchner funnel filter plate is too big, and the negative pressure control of suction filtration is not good, and filter paper has fenestrate risk, and buchner funnel's filter plate receives the liquid level to be planar design, mixes appearance and emptys the risk that then can cause overflowing at the excessive speed, still can influence the stability of filter paper on the funnel, can cause the experiment failure.

We have therefore proposed a device for detecting domestic sewage sludge in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection apparatus for domestic sewage mud, adopt buchner funnel to filter domestic sewage on solving the present market that above-mentioned background art provided more, buchner funnel needs the staff to hold with the hand in the use, arouse rocking of buchner funnel easily, the operation is inconvenient, the filtration pore diameter of buchner funnel filter plate is too big, the negative pressure control of suction filtration is not good, filter paper has the fenestrate risk, buchner funnel's filter plate receives the liquid level to be planar design, it then can cause the risk that spills over to empty too fast to mix the appearance, can cause the problem of experimental failure.

In order to achieve the above object, the utility model provides a following technical scheme: a detection device for domestic sewage and sludge comprises a funnel, a gas outlet, a barometer, rollers and a limiting plate, wherein a support ring is fixed on the funnel, a fixing ring is fixed on the inner side of the support ring, a fixing rod is installed on the fixing ring, the gas outlet is fixed on a first suction bottle, a rubber pipe is connected to the gas outlet, a threaded bottle cap is fixed at the bottom of the funnel, a sealing rubber ring is placed below the threaded bottle cap, the barometer is installed on a gas suction pipe, the gas suction pipe is fixed on a vacuum pump, a gas outlet pipe is connected to the vacuum pump, a water outlet pipe is arranged at the bottom of the funnel, a second suction bottle is connected to the right side of the first suction bottle, a third suction bottle is connected to the right side of the second suction bottle, a gas inlet is installed on the third suction bottle, a fixing groove is formed in the support ring, and a sliding plate is arranged in the support ring, the inside filtration sieve that is provided with of retainer plate, first spacing groove has been seted up on the support ring, be provided with the gag lever post in the first spacing groove, the inside press platen that is provided with of fixed slot, press platen bottom is connected with the spring, the second spacing groove has been seted up on the fixed slot, and has seted up the third spacing groove on the fixed slot, be connected with the haulage rope on the sliding plate, be provided with the gyro wheel on the haulage rope, be fixed with the limiting plate on the press platen.

Preferably, the inner diameter DN of the funnel is 15cm, and the diameter DN of the filtering sieve plate is 13 cm.

Preferably, the funnel wall of the funnel is in a straight slope structure.

Preferably, the lower side of the funnel is connected with a threaded bottle cap with internal threads, the threaded bottle cap and the funnel are integrally formed, and a sealing rubber ring is tightly connected to the lower side of the threaded bottle cap.

Preferably, the body interface of the first suction flask is required to be of an external thread spiral structure, the first suction flask and the threaded bottle cap of the funnel are in mutual thread-fitting spiral bayonet joint, and the first suction flask device is required to have a body external diameter DN larger than 15 cm.

Preferably, the pressing plate is of a lifting structure in the fixing groove through a spring, the width of the pressing plate is equal to that of the fixing rod, and the telescopic distance of the pressing plate is equal to the sum of the height of the fixing rod and the depth of the first limiting groove.

Compared with the prior art, the beneficial effects of the utility model are that: the detection device for the domestic sewage and the sludge,

(1) the single triple bottle synchronous work can be realized, the parallel measurement of a single sample or the measurement of a plurality of samples can be carried out, and the working efficiency is greatly improved;

(2) on the premise of the requirement of standard detection of the sludge, the filtering speed is improved, and the detection time of sludge Mixed Liquid Suspended Solids (MLSS) in the sewage is greatly saved;

(3) the arc mixed liquid bearing surface structure can lead the mixed liquid to be filtered to be gathered in the middle of the filtering sieve plate, and the phenomenon of mixed liquid overflow can not be generated;

(4) the funnel and the bottle body interface of the suction filtration bottle device are mutually engaged spiral bayonets, and the sealing rubber ring is tightly pressed through the engagement of the spiral bayonets, so that the integral air tightness is ensured, and the risks of negative pressure fluctuation in the bottle and lateral falling of the funnel caused by the instability of the hand-held funnel are avoided;

(5) be provided with the press plate of liftable, when the fixed retainer plate, with the dead lever block of retainer plate between press plate and sliding plate, press the press plate and provide better fixed ability for the retainer plate, prevent to filter rocking of sieve at the suction filtration in-process, reduce the damaged probability of filter paper on filtering the sieve.

Drawings

FIG. 1 is a schematic view of the flow structure of the present invention;

FIG. 2 is a schematic sectional view of the funnel of the present invention;

FIG. 3 is a schematic top view of the support ring of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the support ring of the present invention.

In the figure: 1. a funnel; 2. a support ring; 3. a stationary ring; 4. fixing the rod; 5. an air outlet; 6. a rubber tube; 7. a threaded bottle cap; 8. sealing the rubber ring; 9. a barometer; 10. an air intake duct; 11. a vacuum pump; 12. An air outlet pipe; 13. a water outlet pipe; 14. a first suction flask; 15. a second suction flask; 16. a third suction flask; 17. an air inlet; 18. a sliding plate; 19. fixing grooves; 20. filtering the sieve plate; 21. a first limit groove; 22. a limiting rod; 23. a pressing plate; 24. a spring; 25. a second limit groove; 26. a third limiting groove; 27. a hauling rope; 28. a roller; 29. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-4, the present invention provides a technical solution: a detection device for domestic sewage and sludge comprises a funnel 1, a support ring 2, a fixed ring 3, a fixed rod 4, an air outlet 5, a rubber tube 6, a threaded bottle cap 7, a sealing rubber ring 8, a barometer 9, an air suction pipe 10, a vacuum pump 11, an air outlet pipe 12, a water outlet pipe 13, a first suction bottle 14, a second suction bottle 15, a third suction bottle 16, an air inlet 17, a sliding plate 18, a fixed groove 19, a filter sieve plate 20, a first limit groove 21, a limit rod 22, a pressing plate 23, a spring 24, a second limit groove 25, a third limit groove 26, a traction rope 27, a roller 28 and a limit plate 29, wherein the support ring 2 is fixed on the funnel 1, the fixed ring 3 is fixed on the inner side of the support ring 2, the fixed rod 4 is arranged on the fixed ring 3, the air outlet 5 is fixed on the first suction bottle 14, the rubber tube 6 is connected on the air outlet 5, the threaded 7 is fixed at the bottom of the funnel 1, a sealing rubber ring 8 is arranged below the threaded bottle cap 7, a barometer 9 is arranged on an air suction pipe 10, the air suction pipe 10 is fixed on a vacuum pump 11, the vacuum pump 11 is connected with an air outlet pipe 12, the bottom of the funnel 1 is provided with an outlet pipe 13, the right side of a first suction bottle 14 is connected with a second suction bottle 15, the right side of the second suction bottle 15 is connected with a third suction bottle 16, the third suction bottle 16 is provided with an air inlet 17, a fixed groove 19 is arranged on the support ring 2, a sliding plate 18 is arranged inside the fixed groove 19, a filter sieve plate 20 is arranged inside the fixed ring 3, a first limit groove 21 is arranged on the support ring 2, a limit rod 22 is arranged inside the first limit groove 21, a pressing plate 23 is arranged inside the fixed groove 19, the bottom of the pressing plate 23 is connected with a spring 24, a second limit groove 25 is arranged on the fixed groove 19, a third limit groove 26 is arranged on the fixed groove 19, and a traction rope 27 is connected on the sliding plate 18, the pulling rope 27 is provided with a roller 28, and a limiting plate 29 is fixed on the pressing plate 23.

The internal diameter DN of funnel 1 equals 15cm, and the diameter DN of filter sieve plate 20 equals 13cm, makes the filter paper side seam can not too big or undersize, guarantees that mud mixed liquid is difficult to overflow.

The funnel wall of the funnel 1 is of a straight slope structure, and aims to reduce the friction force of the filtrate and realize that the filtrate quickly flows to the water outlet pipe 13 to be discharged.

The lower side of the funnel 1 is connected with a threaded bottle cap 7 with internal threads, the threaded bottle cap 7 and the funnel 1 are integrally formed, and a sealing rubber ring 8 is tightly connected to the lower side of the threaded bottle cap 7, so that the sealing performance of the first filter flask 14 is improved.

The body interface of the first suction bottle 14 requires an external thread spiral structure, the first suction bottle 14 and the thread bottle cap 7 of the funnel 1 are mutually in a screw bayonet joint with a matched thread, and the outer diameter DN of the body of the first suction bottle 14 is required to be more than 15cm, so that the whole suction filtration device is stabilized, and the side falling of the suction filtration device is avoided.

The pressing plate 23 is of a lifting structure in the fixing groove 19 through the spring 24, the width of the pressing plate 23 is equal to that of the fixing rod 4, and the telescopic distance of the pressing plate 23 is equal to the sum of the height of the fixing rod 4 and the depth of the first limiting groove 21, so that the fixing rod 4 is conveniently fixed below the sliding plate 18.

The working principle is as follows: when the detection device for domestic sewage sludge is used, firstly, the fixed ring 3 is fixed on the support ring 2, the fixed rod 4 on the fixed ring 3 is placed in the fixed groove 19 on the support ring 2, then the fixed ring 3 is pressed, the fixed ring 3 drives the fixed rod 4 to press the pressing plate 23 downwards, the pressing plate 23 presses the pressing spring 24 downwards, the pressing plate 23 drives the limiting plate 29 to descend, the limiting plate 29 pulls the traction rope 27, the traction rope 27 pulls the sliding plates 18 to slide through the rollers 28, the two sliding plates 18 slide reversely and close, the two sliding plates 18 mutually act to press the fixed rod 4 downwards, so that the fixed ring 3 is fixed on the support ring 2, the sealing rubber ring 8 penetrates through the water outlet pipe 13, the sealing rubber ring 8 is attached to the threaded bottle cap 7, and the threaded bottle cap 7 is in threaded connection with the first suction bottle 14 to form a sealing and filtering device.

In the same way, the second suction flask 15 and the third suction flask 16 form a sealed filter device, the first suction flask 14 and the second suction flask 15, the second suction flask 15 and the third suction flask 16 are connected by a rubber tube 6, the three filter devices are connected to an air suction pipe 10 on a vacuum pump 11 by the rubber tube 6, three pieces of filter paper for experiments are respectively placed on filter sieve plates 20 of three funnels 1, the filter sieve plates 20 are wetted by pure water until the filter paper is attached to the filter sieve plates 20, 100mL of sludge mixed liquid to be measured is respectively measured and poured into the filter paper, at the moment, the filter sieve plates 20 of an arc structure wrap and support the filter paper mixed liquid, so that the filter paper mixed liquid can not overflow from side seams of the filter paper, the vacuum pump 11 is started to carry out suction filtration on the mixed liquid until the water of the sludge mixed liquid is drained, the sludge flowability is not good, the vacuum pump 11 is closed, the filter paper with the sludge is taken out by a traceless tweezers and is placed in a weighing bottle for drying, measuring Mixed Liquor Suspended Solids (MLSS) of the sludge mixed liquor, respectively removing the rubber tube 6 and the funnel 1 after the pumping filtration is finished, discarding and cleaning filtrate in the first suction flask 14, the second suction flask 15 and the third suction flask 16, and completing the experimental operation, wherein the content which is not described in detail in the specification belongs to the prior art which is known by the professional technicians in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a detection apparatus for domestic sewage mud, includes funnel (1), gas outlet (5), barometer (9), gyro wheel (28) and limiting plate (29), its characterized in that: a support ring (2) is fixed on the funnel (1), a fixing ring (3) is fixed on the inner side of the support ring (2), a fixing rod (4) is installed on the fixing ring (3), an air outlet (5) is fixed on a first suction bottle (14), a rubber tube (6) is connected on the air outlet (5), a threaded bottle cap (7) is fixed at the bottom of the funnel (1), a sealing rubber ring (8) is placed under the threaded bottle cap (7), a barometer (9) is installed on an air suction pipe (10), the air suction pipe (10) is fixed on a vacuum pump (11), an air outlet pipe (12) is connected on the vacuum pump (11), a water outlet pipe (13) is arranged at the bottom of the funnel (1), a second suction bottle (15) is connected on the right side of the first suction bottle (14), a third suction bottle (16) is connected on the right side of the second suction bottle (15), an air inlet (17) is arranged on the third filter flask (16), a fixed groove (19) is arranged on the support ring (2), a sliding plate (18) is arranged in the fixed groove (19), a filtering sieve plate (20) is arranged in the fixed ring (3), a first limit groove (21) is arranged on the support ring (2), a limit rod (22) is arranged in the first limit groove (21), a pressing plate (23) is arranged in the fixing groove (19), a spring (24) is connected to the bottom of the pressing plate (23), a second limiting groove (25) is formed in the fixing groove (19), a third limit groove (26) is arranged on the fixed groove (19), a traction rope (27) is connected on the sliding plate (18), the traction rope (27) is provided with a roller (28), and the pressing plate (23) is fixed with a limiting plate (29).

2. The apparatus for detecting domestic sewage sludge according to claim 1, wherein: the inner diameter DN of the funnel (1) is 15cm, and the diameter DN of the filtering sieve plate (20) is 13 cm.

3. The apparatus for detecting domestic sewage sludge according to claim 1, wherein: the funnel wall of the funnel (1) is of a straight slope structure.

4. The apparatus for detecting domestic sewage sludge according to claim 1, wherein: funnel (1) downside is connected with threaded bottle lid (7) of in-band screw thread, and threaded bottle lid (7) and funnel (1) integrated into one piece to threaded bottle lid (7) below zonulae occludens sealing rubber ring (8).

5. The apparatus for detecting domestic sewage sludge according to claim 1, wherein: the body interface of the first suction bottle (14) is required to be of an external thread spiral structure, the first suction bottle (14) and the thread bottle cap (7) of the funnel (1) are mutually in tooth-matching spiral bayonet joint, and the first suction bottle (14) device requires that the outer diameter DN of the body is more than 15 cm.

6. The apparatus for detecting domestic sewage sludge according to claim 1, wherein: the pressing plate (23) is of a lifting structure in the fixing groove (19) through a spring (24), the width of the pressing plate (23) is equal to that of the fixing rod (4), and the telescopic distance of the pressing plate (23) is equal to the sum of the height of the fixing rod (4) and the depth of the first limiting groove (21).