CN221465440U - Sludge sedimentation coefficient measuring device - Google Patents

Abstract

The utility model relates to a sludge sedimentation coefficient measuring device which comprises a shell, a light source backboard, a camera, a fixing seat and a measuring cylinder, wherein the top opening of the shell is provided with an end cover, the light source backboard and the camera are oppositely arranged in the shell, the fixing seat is fixedly arranged on the inner bottom surface of the shell and positioned between the light source backboard and the camera, the vertically arranged measuring cylinder is fixedly arranged on the fixing seat, the middle part of the bottom surface of the measuring cylinder is connected with a discharge pipe, and a discharge control valve is arranged on the discharge pipe; the top of the end cover is provided with a peristaltic pump for extracting a sludge sample, the water outlet end of the peristaltic pump is connected with an input pipe, and the input pipe penetrates through the end cover and extends to the position right above the measuring cylinder; the inside of survey graduated flask is provided with stirring subassembly, stirring subassembly is by the stirring motor drive rotation of installing the interior top surface at the end cover. The utility model has reasonable structural design, effectively improves the convenience of operation and improves the measurement accuracy.

Description

Sludge sedimentation coefficient measuring device

Technical field:

the utility model relates to a sludge sedimentation coefficient measuring device.

The background technology is as follows:

In the operation of sewage treatment plants, the sludge sedimentation coefficient, or sludge sedimentation ratio (SV), is an important indicator for observing the sludge status of an aerobic system. The sludge sedimentation system is characterized in that the uniformly mixed aeration tank activated sludge mixed liquor is rapidly poured into a standard measuring cylinder of 1000ml to reach full scale, and after standing for a certain time, the volume ratio (%) of precipitated sludge and the obtained mixed liquor is a key index for analyzing the sludge sedimentation performance. The volume ratio of the mixture obtained by settling the sludge volume after standing and settling for 30min is generally selected as the sludge settling ratio and is denoted as SV30. The SV30 value can reflect the sludge quantity, the cohesiveness, the sedimentation performance and the like of the sludge when the aeration tank normally operates, can be used for controlling the discharge quantity of the residual sludge, and is an important necessary measurement index for guiding the safe and efficient operation of a sewage treatment plant.

Current laboratory determinations of SV30 are typically recorded manually, since experimental determination time must reach 30 minutes and frequent recordings are required, resulting in waste of human resources during detection, and frequent forgetting and erroneous recordings result in experimental data errors. And the lack of experienced managers limited by the scale of sewage plants makes it difficult to accurately analyze the relevant test data.

To overcome the drawbacks of manual recording in the above laboratory SV30 measurement, chinese patent publication No. CN202123367275 discloses a sludge sedimentation coefficient meter with result feedback using a standard measuring cylinder, comprising: a shell provided with a measuring cylinder inlet and outlet; the end cover is hinged with the shell and can cover the inlet and outlet of the measuring cylinder; the limit switch is fixedly connected with the end cover; the light source backboard is fixedly arranged on one inner side wall of the shell; the camera is fixedly arranged on the other inner side wall of the shell; the measuring cylinder fixing base is fixedly arranged on the inner bottom surface of the shell and is positioned between the light source backboard and the camera; the display screen is fixedly arranged on the outer side wall of the shell; the main control computer is electrically connected with the limit switch, the light source backboard, the camera and the display screen. The utility model has the advantages that: the camera is located the standard graduated flask on the graduated flask unable adjustment base and shoots, and the photo is passed back and is transmitted the main control computer, and automatic record is carried out to the mud settlement condition in the standard graduated flask, and the main control computer feeds back the display screen with the result, reduces the working strength that sewage plant laboratory personnel survey mud settlement coefficient by a wide margin.

However, the above-mentioned apparatus adopts the mode of manually loading the mud sample into the graduated flask when using, and still need to pour the sample in the graduated flask manually after finishing the survey, and replace the new mud sample to carry on the survey, the whole course is operated comparatively fussy, inconvenient; meanwhile, the measuring instrument lacks a structure for stirring the sludge sample in the measuring cylinder, so that the sludge sample cannot be fully and uniformly mixed before sedimentation, and bubbles in the sludge are discharged, so that the accuracy of a measuring result is affected. For this reason, there is a need for an improvement in the above-mentioned technical problems.

The utility model comprises the following steps:

The utility model aims at improving the problems in the prior art, namely the technical problem to be solved by the utility model is to provide a sludge sedimentation coefficient measuring device which is reasonable in design, improves the operation convenience and improves the measuring effect.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a sludge sedimentation coefficient measuring device, includes the casing that the open-top is provided with the end cover, sets up light source backplate and the camera in the casing relatively, sets firmly in the casing interior bottom surface and is located the fixing base between light source backplate and the camera, be fixed with the survey graduated flask of vertical setting on the fixing base, the bottom surface middle part of survey graduated flask is connected with the discharge tube, be provided with the emission control valve on the discharge tube; the top of the end cover is provided with a peristaltic pump for extracting a sludge sample, the water outlet end of the peristaltic pump is connected with an input pipe, and the input pipe penetrates through the end cover and extends to the position right above the measuring cylinder; the inside of survey graduated flask is provided with stirring subassembly, stirring subassembly is by the stirring motor drive rotation of installing the interior top surface at the end cover.

Further, the stirring assembly comprises a stirring shaft vertically arranged in the middle of the measuring cylinder, the upper end of the stirring shaft is connected with an output shaft of the stirring motor, and a plurality of stirring rods are axially fixed on the outer surface of the stirring shaft.

Further, the stirring rods are vertically distributed with the stirring shaft.

Further, the top surface of the fixing seat is provided with a downward concave positioning groove, and an accommodating channel communicated with the bottom of the positioning groove is arranged in the fixing seat; the measuring cylinder is fixedly inserted into the positioning groove, the discharge pipe penetrates through the accommodating channel and extends out of the shell, and the discharge control valve is positioned outside the shell.

Further, the left end and the right end of the end cover are detachably connected with the shell through the snap locks.

Compared with the prior art, the utility model has the following effects: the utility model has reasonable structural design, the peristaltic pump is used for extracting the sludge sample into the measuring cylinder, and the sludge sample is discharged through the discharge pipe after the measurement is finished, the whole process is operated without manually taking and placing the measuring cylinder from the shell, and the operation convenience is effectively improved; meanwhile, the stirring assembly is arranged in the measuring cylinder, so that the sludge sample is conveniently stirred, the sludge sample is fully and uniformly mixed before sedimentation, bubbles in the sludge are discharged, and further the follow-up measurement accuracy is improved.

Description of the drawings:

FIG. 1 is a schematic diagram of a front view configuration of an embodiment of the present utility model;

fig. 2 is a schematic view of a partial construction of an embodiment of the present utility model.

The specific embodiment is as follows:

the utility model will be described in further detail with reference to the drawings and the detailed description.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-2, the sludge sedimentation coefficient measuring device of the utility model comprises a shell 1 with an end cover 8 at the top opening, a camera 2 and a light source backboard 3 which are oppositely arranged at the left and right ends inside the shell 1, and a fixing seat 4 which is fixedly arranged at the inner bottom surface of the shell 1 and is positioned between the light source backboard 3 and the camera 2, wherein the structure is the same as that of a sludge sedimentation coefficient measuring instrument which is disclosed by CN202123367275 and uses standard measuring cylinder to feed back results, and redundant description is not repeated here, namely the utility model is an improvement based on the sludge sedimentation coefficient measuring instrument which is disclosed by CN202123367275 and uses standard measuring cylinder to feed back results, and the concrete improvement points are that: a measuring cylinder 5 which is vertically arranged is fixed on the fixed seat 4, a discharge pipe 6 is connected to the middle part of the bottom surface of the measuring cylinder 5, a discharge control valve 7 is arranged on the discharge pipe 6, after the measurement is finished, the discharge control valve 7 is opened, and a sludge sample in the measuring cylinder 5 is measured at a discharge position of the discharge pipe 6; the top of the end cover 8 is provided with a peristaltic pump 9 for extracting a sludge sample, the water outlet end of the peristaltic pump 9 is connected with an input pipe 10, the input pipe 10 penetrates through the end cover 8 and extends to the position right above the measuring cylinder 5, and the peristaltic pump 9 extracts the sludge sample into the measuring cylinder 5 through the input pipe 10; the inside of the measuring cylinder 5 is provided with a stirring assembly 11, and the stirring assembly 11 is driven to rotate by a stirring motor 12 arranged on the inner top surface of the end cover 8. The peristaltic pump is used for extracting the sludge sample into the measuring cylinder, and the sludge sample is discharged through the discharge pipe after the measurement is finished, so that the whole process is not required to be operated by manually taking and placing the measuring cylinder from the shell, and the convenience of operation is effectively improved; meanwhile, the stirring assembly is arranged in the measuring cylinder, so that the sludge sample is conveniently stirred, the sludge sample is fully and uniformly mixed before sedimentation, bubbles in the sludge are discharged, and further the follow-up measurement accuracy is improved.

In this embodiment, the stirring assembly 11 includes a stirring shaft 13 vertically disposed in the middle of the measuring cylinder 5, an upper end of the stirring shaft 13 is connected with an output shaft of the stirring motor 12, and a plurality of stirring rods 14 are fixed on an outer surface of the stirring shaft 13 along an axial direction. Preferably, the stirring rod 14 is perpendicular to the stirring shaft 13. During operation, the stirring motor drives the stirring shaft to rotate, and the stirring shaft drives the stirring rods to rotate, so that sludge samples in the measuring cylinder are stirred.

In this embodiment, the top surface of the fixing base 4 is provided with a positioning groove 15 recessed downward, and an accommodating channel 16 communicated with the bottom of the positioning groove 15 is arranged inside the fixing base 4; the measuring cylinder 5 is fixedly inserted in the positioning groove 15, the discharge pipe 6 penetrates the accommodating channel 16 and extends out of the shell 1, and the discharge control valve 7 is positioned outside the shell 1. Further, the discharge control valve can be an electric valve, so that the control is convenient; the discharge pipe can also be connected with a material pump, and after the measurement is finished, the sludge sample in the measuring cylinder is rapidly pumped out by the material pump.

In this embodiment, the end cover 8 is directly covered above the top opening of the housing 1, and the left and right ends are detachably connected with the housing through a snap lock. When the whole stirring assembly is to be disassembled or overhauled, the snap lock can be unlocked, the whole end cover is directly lifted upwards to open the top opening of the shell, and the end cover drives the whole stirring assembly to be removed from the measuring cylinder.

In the embodiment, the water inlet end of the peristaltic pump is connected with a feed pipe and a water inlet pipe, and the feed pipe is used for being connected with a container for storing a sludge sample so as to feed the sludge sample into the measuring cylinder; the water inlet pipe is connected with the water tank, and the peristaltic pump can send clear water into the measuring cylinder through the water inlet pipe after the measurement is finished so as to clean the measuring cylinder.

It should be noted that, when the sludge sample is fed into the measuring cylinder, the amount of the sludge sample in the measuring cylinder can be controlled by setting the pumping speed and pumping time of the peristaltic pump, which are known using modes of the peristaltic pump, and redundant description is not repeated here.

It should be noted that, the peristaltic pump, the stirring motor, the stirring assembly and the discharge pipe are added on the basis of the sludge sedimentation coefficient measuring instrument disclosed by CN202123367275 and with result feedback by using a standard measuring cylinder, and the connection mode of the end cover and the shell is improved, and the specific measuring principle and the measuring mode are the same as those of the sludge sedimentation coefficient measuring instrument disclosed by CN202123367275 and with result feedback by using a standard measuring cylinder, and redundant repeated description is omitted.

If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.

Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims (5)

1. The utility model provides a mud sedimentation coefficient survey device, includes that the open-top is provided with the casing of end cover, sets up light source backplate and the camera in the casing is inside relatively, sets firmly in the casing bottom surface and is located the fixing base between light source backplate and the camera, its characterized in that: a measuring cylinder which is vertically arranged is fixed on the fixed seat, a discharge pipe is connected to the middle part of the bottom surface of the measuring cylinder, and a discharge control valve is arranged on the discharge pipe; the top of the end cover is provided with a peristaltic pump for extracting a sludge sample, the water outlet end of the peristaltic pump is connected with an input pipe, and the input pipe penetrates through the end cover and extends to the position right above the measuring cylinder; the inside of survey graduated flask is provided with stirring subassembly, stirring subassembly is by the stirring motor drive rotation of installing the interior top surface at the end cover.

2. The sludge sedimentation coefficient measuring apparatus according to claim 1, wherein: the stirring assembly comprises a stirring shaft vertically arranged in the middle of the measuring cylinder, the upper end of the stirring shaft is connected with an output shaft of the stirring motor, and a plurality of stirring rods are axially fixed on the outer surface of the stirring shaft.

3. The sludge sedimentation coefficient measuring apparatus according to claim 2, wherein: the stirring rods are vertically distributed with the stirring shaft.

4. The sludge sedimentation coefficient measuring apparatus according to claim 1, wherein: the top surface of the fixing seat is provided with a downward concave positioning groove, and the inside of the fixing seat is provided with an accommodating channel communicated with the bottom of the positioning groove; the measuring cylinder is fixedly inserted into the positioning groove, the discharge pipe penetrates through the accommodating channel and extends out of the shell, and the discharge control valve is positioned outside the shell.

5. The sludge sedimentation coefficient measuring apparatus according to claim 1, wherein: the left end and the right end of the end cover are detachably connected with the shell through a snap lock.