Device for detecting sedimentation rate of particulate matters

Abstract

The utility model provides a device for detecting the sedimentation rate of particulate matters, which comprises a bracket, a water tank and a detection device, the sedimentation column is hollow inside, the sedimentation column is mounted on the bracket, and the bottom of the sedimentation column extends into the water tank; an end cover is arranged at the top of the settling column and is provided with an air exhaust valve; each tray assembly at least comprises a tray, a hook is fixedly mounted on the tray, and a particulate matter receiving tray is placed in the tray; each tray assembly can be hung on the side wall of the water tank through a hook, so that the particulate matter receiving disc is located at the bottom of the sedimentation column. In the natural settling process of the particulate matters in the water sample, the weight of the particulate matters settled at different times is collected by replacing different groups of tray assemblies, and the distribution condition of the settling rate of the particulate matters is detected by utilizing the proportion of the weight of the particulate matters settled at different times to the total weight of the particulate matters. The particulate matter sedimentation rate detection device can detect the particulate matter sedimentation rate and can also detect the distribution of the particulate matter sedimentation rate.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a device for detecting the settling rate of particles. Background Art

[0002] The sedimentation rate of particulate matter in the water of a water plant or sewage treatment plant is of great significance to the research on the coagulation and sedimentation treatment process and coagulation and sedimentation treatment facilities of the water plant or sewage treatment plant.

[0003] In the prior art, the sedimentation rate of particles in water is detected by a sedimentation column. Specifically, water from a water plant or sewage plant is sampled to a laboratory, and the water sample is added to a sedimentation column, and the height of the water sample in the sedimentation column is recorded. h Then wait for the particles in the water sample to settle naturally. When the particles in the water sample are completely settled, record the settling time of the particles. t ,pass v=h / t Calculate the settling rate of particles v , thereby detecting the sedimentation rate of particles in water.

[0004] However, the existing sedimentation column can only detect the sedimentation rate of particles in the water sample after the particles are completely settled. It cannot detect the distribution of the sedimentation rate of particles in the water sample during the natural sedimentation process, and cannot make a comprehensive judgment on the sedimentation characteristics of the particles. Utility Model Content

[0005] The utility model provides a device for detecting the sedimentation rate of particles, so as to solve the technical problem that the existing sedimentation column cannot detect the distribution of the sedimentation rate of particles in the natural sedimentation process of particles in a water sample.

[0006] One aspect of the utility model is to provide a device for detecting the settling rate of particles, the device comprising:

[0007] A bracket, wherein a water tank is arranged at the bottom of the bracket;

[0008] A sedimentation column with a hollow interior, the sedimentation column is mounted on the bracket, and the bottom of the sedimentation column extends into the water tank; an end cover is arranged on the top of the sedimentation column, and a vacuum valve is installed on the end cover;

[0009] A plurality of groups of tray assemblies, each group of the tray assemblies comprises at least one tray, a hook is fixedly mounted on the tray, and a particle receiving tray is placed in the tray;

[0010] Each group of the tray assemblies is hung on the side wall of the water tank through the hooks, so that the particle receiving tray is located at the bottom of the sedimentation column.

[0011] In a preferred embodiment, a hose is installed on the air extraction valve for connecting to a vacuum pump.

[0012] In a preferred embodiment, a first fixing member and a second fixing member are fixed on the bracket;

[0013] The first fixing member is fixed to the end cover by bolts, and the second fixing member tightly embraces the sedimentation column in an embracing manner.

[0014] In a preferred embodiment, a drain valve is installed on the side wall of the water tank.

[0015] In a preferred embodiment, a sink orifice plate pad is installed at the bottom of the sink to block the bottom of the sink.

[0016] In a preferred embodiment, a sealing ring is provided between the top of the sedimentation column and the end cover.

[0017] In a preferred embodiment, there are at least 6 groups of tray assemblies.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model proposes a device for detecting the settling rate of particles. The settling column is installed on a bracket with a water tank, and a water sample is pumped to a certain height of the settling column. During the natural settling process of the particles in the water sample, the weight of the particles settling at different times is collected by replacing different groups of tray components. The distribution of the particle settling rate is detected by using the proportion of the weight of the particles settling at different times to the total weight of the particles in the water sample in the settling column. The utility model can not only detect the settling rate of particles, but also detect the distribution of the settling rate of particles.

[0020] The utility model provides a device for detecting the settling rate of particles, which is applicable to detecting the distribution of settling rates of particles in various types of particles or water bodies, has a simple structure, is easy to use, has high detection efficiency, and has a wide adjustable detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The utility model is a structural schematic diagram of a device for detecting the settling rate of particles.

[0023] Figure 2 It is a structural schematic diagram of a group of tray components of the utility model.

[0024] Figure 3 It is a side schematic diagram of a device for detecting the settling rate of particles of the utility model.

[0025] Figure 4 yes Figure 3 Cross-sectional view along the AA direction.

[0026] Figure 5 yes Figure 4 Cross-sectional view along the BB direction. DETAILED DESCRIPTION

[0027] In order to make the above and other features and advantages of the utility model more clear, the utility model is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0028] Combination Figures 1 to 5 According to an embodiment of the utility model, a device for detecting the settling rate of particles is provided, comprising a bracket 1, an internally hollow settling column 2 and a plurality of tray assemblies 8.

[0029] A water tank 101 is provided at the bottom of the bracket 1. A sedimentation column 2 is mounted on the bracket 1, and the bottom of the sedimentation column 2 extends into the water tank 101. An end cap 3 is provided on the top of the sedimentation column 2, and an air extraction valve 4 is installed on the end cap 3. Preferably, the air extraction valve 4 is installed at the center of the end cap 3.

[0030] Furthermore, a hose 5 is installed on the air extraction valve 4 for connecting a vacuum pump. A sealing ring is arranged between the top of the sedimentation column 2 and the end cover 3. A first fixing member 6 and a second fixing member 7 are fixed on the bracket 1. The first fixing member 6 is fixed to the end cover 3 by bolts 301, and the second fixing member 7 holds the sedimentation column 2 in an embracing manner.

[0031] In some embodiments, the second fixing member 7 holds the sedimentation column 2 in a semi-enclosed manner; in other embodiments, the second fixing member 7 holds the sedimentation column 2 in a fully enclosed manner.

[0032] Furthermore, a water tank perforated plate pad 10 is installed at the bottom of the water tank 101 to block the bottom of the water tank 101. In some embodiments, the water tank perforated plate pad 10 is installed at the bottom of the water tank 101 in a detachable manner.

[0033] Furthermore, a drain valve 9 is installed on the side wall of the water tank 101 , and when the detection is completed, the water sample in the water tank 101 is drained through the drain valve 9 .

[0034] According to an embodiment of the present invention, a device for detecting the settling rate of particles further includes a plurality of tray assemblies 8 .

[0035] like Figure 2 As shown, each set of tray components 8 includes at least one tray 802 , a hook 801 is fixedly mounted on the tray 802 , and a particle receiving tray 803 is placed in the tray 802 .

[0036] Each set of tray components 8 is hung on the side wall of the water tank 101 by a hook 801, so that the particle receiving tray 803 is located at the bottom of the sedimentation column 2. Figure 1 , Figure 3 and Figure 5 shown.

[0037] The utility model has at least 6 sets of tray assemblies 8. In this embodiment, the tray assemblies 8 are configured in 6 sets. In some embodiments, the number of tray assemblies 8 can be configured in more sets according to actual needs.

[0038] The following is an explanation of the use of a device for detecting particle settling rate of the utility model. The utility model can detect both the particle settling rate and the distribution of the particle settling rate.

[0039] Particle settling rate detection.

[0040] When detecting the particle settling rate, the settling column 2 is mounted on the bracket 1, and the bottom of the settling column 2 extends into the water tank 101, the drain valve 9 is closed, and the air extraction valve 4 is opened. The hose 5 is connected to the vacuum pump (the vacuum pump is not shown in the figure).

[0041] The water sample collected from the water plant or sewage plant is poured into the water tank 101 at the bottom of the bracket 1, and the vacuum pump is used to pump the water sample in the water tank 101 to a certain height of the sedimentation column 2. H Finally, the vacuum pump and the exhaust valve 4 are closed, and at this time, a set of tray assemblies 8 are quickly hung on the side wall of the water tank 101 through the hook 801, so that the particle receiving tray 803 is located at the bottom of the sedimentation column 2.

[0042] Then wait for the particles in the water sample in the sedimentation column 2 to settle naturally. When the particles in the water sample are completely settled, record the settling time of the particles. t ,pass v=H / t Calculate the settling rate of particles v , thereby detecting the sedimentation rate of particles in water.

[0043] It should be understood that those skilled in the art can use existing technical means to determine whether the particles in the water sample have completely settled. For example, by continuously taking pictures of the sedimentation column 2, it can be determined whether the particles in the water sample have completely settled.

[0044] Distribution detection of particle settling rate.

[0045] In this embodiment, when detecting the distribution of the particle settling rate, 6 sets of tray assemblies 8 are used. In order to more clearly illustrate the use process of the utility model, the 6 sets of tray assemblies 8 are numbered as No. 1 tray assembly 8, No. 2 tray assembly 8, No. 3 tray assembly 8, No. 4 tray assembly 8, No. 5 tray assembly 8 and No. 6 tray assembly 8.

[0046] The sedimentation column 2 is mounted on the support 1, and the bottom of the sedimentation column 2 extends into the water tank 101, the drain valve 9 is closed, and the air extraction valve 4 is opened. The hose 5 is connected to a vacuum pump (the vacuum pump is not shown in the figure).

[0047] The water sample collected from the water plant or sewage plant is poured into the water tank 101 at the bottom of the bracket 1, and the vacuum pump is used to pump the water sample in the water tank 101 to a certain height of the sedimentation column 2. H After that, the vacuum pump and the exhaust valve 4 are turned off. At this time, the No. 1 tray assembly 8 is quickly hung on the side wall of the water tank 101 through the hook 801, so that the particle receiving plate 803 is located at the bottom of the sedimentation column 2, and the timing is started. The particles in the water sample in the sedimentation column 2 naturally settle. t 1 time.

[0048] When the particles in the water sample in the sedimentation column 2 naturally settle t After 1 time, quickly replace the No. 1 tray assembly 8 with the No. 2 tray assembly 8, and start timing. The particles in the water sample in the sedimentation column 2 will naturally settle. t 2 time.

[0049] When the particles in the water sample in the sedimentation column 2 naturally settle t After 2 hours, quickly replace the No. 2 tray assembly 8 with the No. 3 tray assembly 8, and start timing. The particles in the water sample in the sedimentation column 2 will naturally settle. t 3 time.

[0050] When the particles in the water sample in the sedimentation column 2 naturally settle t After 3 hours, quickly replace the No. 3 tray assembly 8 with the No. 4 tray assembly 8, and start timing. The particles in the water sample in the sedimentation column 2 will naturally settle. t 4 time.

[0051] When the particles in the water sample in the sedimentation column 2 naturally settle t 4 After the time, quickly replace the No. 4 tray assembly 8 with the No. 5 tray assembly 8, and start timing, the particles in the water sample in the sedimentation column 2 will naturally settle. t 5 time.

[0052] When the particles in the water sample in the sedimentation column 2 naturally settle tAfter 5 hours, quickly replace the tray assembly 8 of No. 5 with the tray assembly 8 of No. 6, and start timing. The particles in the water sample in the sedimentation column 2 will settle naturally. t 6 time.

[0053] When the particles in the water sample in the sedimentation column 2 naturally settle t After 6 hours, the sedimentation column 2 is quickly removed from the bracket 1, and the No. 6 plate assembly 8 and the sedimentation column 2 are taken out from the water tank 101, and the remaining water sample in the sedimentation column 2 is placed in an empty bucket. Then, the drain valve 9 is opened to drain the water sample in the water tank 101.

[0054] The particles in the particle receiving tray 803 of the No. 1 tray assembly 8 are dried and weighed to obtain a weight of m 1 of particles.

[0055] The particles in the particle receiving tray 803 of the No. 2 tray assembly 8 are dried and weighed to obtain a weight of m 2 of particles.

[0056] The particles in the particle receiving tray 803 of the No. 3 tray assembly 8 are dried and weighed to obtain a weight of m 3 particles.

[0057] The particles in the particle receiving tray 803 of the No. 4 tray assembly 8 are dried and weighed to obtain a weight of m 4 particles.

[0058] The particles in the particle receiving tray 803 of the No. 5 tray assembly 8 are dried and weighed to obtain a weight of m 5 of particles.

[0059] The particles in the particle receiving tray 803 of the No. 6 tray assembly 8 were dried and weighed to obtain a weight of m 6 particles.

[0060] The particles in the empty barrel are dried and weighed to obtain a weight of m 0 particles, that is, the weight of the particles in the remaining water sample in the sedimentation column 2 is m 0.

[0061] The water sample is pumped to a certain height of sedimentation column 2 H After that, the total weight of the particles in the water sample in the sedimentation column 2 is M = m 0+ m 1+ m 2+ m 3+ m 4+ m 5+ m 6.

[0062] exist t 1 Time period, weight of settled particles m The total weight of the particles in the water sample in 1 and sedimentation column 2 M The proportion of (sedimentation rate) η 1= m 1 / M .

[0063] exist t 2 Time period, weight of settled particles m 2 and the total weight of the particles in the water sample in the sedimentation column 2 M The proportion of (sedimentation rate) η 2= m 2 / M .

[0064] exist t 3 Time periods, weight of settled particles m 3 and the total weight of the particles in the water sample in the sedimentation column 2 M The proportion of (sedimentation rate) η 3= m 3 / M .

[0065] exist t 4 Time periods, weight of settled particles m 4 and the total weight of the particles in the water sample in the sedimentation column 2 M The proportion of (sedimentation rate) η 4= m 4 / M .

[0066] exist t 5 Time period, weight of settled particles m 5 and the total weight of the particles in the water sample in the sedimentation column 2 M The proportion of (sedimentation rate) η 5= m 5 / M .

[0067] exist t 6 time periods, weight of settled particles m 6 and the total weight of the particles in the water sample in the sedimentation column 2 M The proportion of (sedimentation rate) η 6= m 6 / M .

[0068] use t 1 time period, t 2 time periods, t 3 time periods, t 4 time periods, t5 Time periods and t 6 time period, the weight of the particles settled in the water sample in the sedimentation column 2 and the total weight of the particles in the water sample in the sedimentation column 2 η 1. η 2. η 3. η 4. η 5 and η 6 Characterize the distribution of particle settling rate in the corresponding time period, so as to detect the distribution of particle settling rate in the water sample.

[0069] The utility model detects the distribution of the particle settling rate by replacing different groups of tray assemblies to collect the weight of the particles settling at different times during the natural settling of particles in the water sample, and uses the ratio of the weight of the particles settling at different times to the total weight of the particles in the water sample in the settling column 2. The utility model can detect not only the particle settling rate, but also the distribution of the particle settling rate.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for detecting the settling rate of particles, characterized in that: The device comprises: A bracket, wherein a water tank is arranged at the bottom of the bracket; A sedimentation column with a hollow interior, the sedimentation column is mounted on the bracket, and the bottom of the sedimentation column extends into the water tank; an end cover is arranged on the top of the sedimentation column, and a vacuum valve is installed on the end cover; A plurality of groups of tray assemblies, each group of the tray assemblies comprises at least one tray, a hook is fixedly mounted on the tray, and a particle receiving tray is placed in the tray; Each group of the tray assemblies is hung on the side wall of the water tank through the hooks, so that the particle receiving tray is located at the bottom of the sedimentation column.

2. The device according to claim 1, characterized in that A hose is installed on the air extraction valve for connecting to a vacuum pump.

3. The device according to claim 1, characterized in that The first fixing member and the second fixing member are fixed on the bracket; The first fixing member is fixed to the end cover by bolts, and the second fixing member tightly embraces the sedimentation column in an embracing manner.

4. The device according to claim 1, characterized in that A drain valve is installed on the side wall of the water tank.

5. The device according to claim 1, characterized in that A water tank orifice plate pad is installed at the bottom of the water tank to block the bottom of the water tank.

6. The device according to claim 1, characterized in that A sealing ring is arranged between the top of the sedimentation column and the end cover.

7. The device according to claim 1, characterized in that The tray components include at least 6 groups.

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