CN117169052A

CN117169052A - Concentration measuring apparatus

Info

Publication number: CN117169052A
Application number: CN202311090927.4A
Authority: CN
Inventors: 薛峰; 高�浩; 熊正帮; 吴宇平
Original assignee: SHANGHAI CELI ENGINEERING & TECHNOLOGY Inc
Current assignee: SHANGHAI CELI ENGINEERING & TECHNOLOGY Inc
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2023-12-05

Abstract

The embodiment of the application discloses concentration measuring equipment which comprises a container, a first pipeline, a weighing piece, a liquid level meter, a controller and a second pipeline. The first pipeline is used for supplying a solid-liquid mixture into the container; the weighing piece is used for weighing; the liquid level meter is used for detecting the liquid level of the solid-liquid mixture in the container so as to obtain the volume of the solid-liquid mixture in the container; the controller is respectively connected with the weighing piece and the liquid level meter in a control way and is used for calculating and obtaining the mass ratio of the solid in the solid-liquid mixture according to the weight of the solid-liquid mixture before and after the container is loaded, the volume of the solid-liquid mixture in the container, the density of the solid in the solid-liquid mixture and the density of the liquid in the solid-liquid mixture; the second pipeline is communicated with the first pipeline, and is used for supplying cleaning liquid into the container through the first pipeline, and the cleaning liquid can clean the first pipeline and the container. The embodiment of the application can reduce the residue of the solid-liquid mixture in the first pipeline.

Description

Concentration measuring apparatus

Technical Field

The application relates to the technical field of detection, in particular to concentration measuring equipment.

Background

The concentration of ore pulp plays an extremely important role in the whole ore dressing process, and the concentration of ore pulp directly affects various technical and economic indexes of the ore dressing process. The concentration of ore pulp to be maintained in production of the concentrating mill can be selected according to actual conditions. The reasonable concentration of ore pulp can not only improve the recovery rate of minerals, but also maintain the consumption of medicaments and water and electricity within a controllable range.

Currently, the concentration measuring equipment comprises a measuring barrel and a pulp inlet pipe. The pulp inlet pipe supplies pulp to be measured into the measuring barrel. The pulp inlet pipe has residual pulp, which affects the measurement accuracy of the next time.

In view of this, it is necessary to develop a concentration measuring apparatus for solving the problem that the residual pulp in the pulp feed pipe affects the measurement accuracy of the next time.

Disclosure of Invention

The embodiment of the application provides concentration measuring equipment, which reduces residual ore pulp in a pulp inlet pipe.

In order to solve the technical problems, the embodiment of the application discloses the following technical scheme: in order to solve the technical problems, the embodiment of the application discloses the following technical scheme:

in one aspect, a concentration measurement apparatus is provided that includes a container, a first conduit, a scale, a level gauge, a controller, and a second conduit. The container is provided with a liquid inlet; the first pipeline is communicated with the liquid inlet and is used for supplying a solid-liquid mixture into the container; the weighing piece is used for weighing the weight of the container before and after the solid-liquid mixture is loaded; the liquid level meter is used for detecting the liquid level of the solid-liquid mixture in the container so as to obtain the volume of the solid-liquid mixture in the container; the controller is respectively connected with the weighing piece and the liquid level meter in a control way and is used for calculating and obtaining the mass ratio of the solid in the solid-liquid mixture according to the weight of the solid-liquid mixture before and after the container is loaded, the volume of the solid-liquid mixture in the container, the density of the solid in the solid-liquid mixture and the density of the liquid in the solid-liquid mixture; the second pipeline is communicated with the first pipeline, and is used for supplying cleaning liquid into the container through the first pipeline, and the cleaning liquid can clean the first pipeline and the container.

In addition to or in lieu of one or more of the features disclosed above, the concentration measurement apparatus further comprises a first valve and a second valve. The first valve is arranged on the first pipeline and used for conducting or closing the first pipeline; the second valve is arranged on the second pipeline and used for conducting or closing the second pipeline; wherein, first valve and second valve all set up in the second pipeline and the upstream side of the first intercommunication department of first pipeline.

In addition to or in lieu of one or more of the features disclosed above, the concentration measurement apparatus further comprises a third valve and a third conduit. The third valve is arranged on the first pipeline and used for conducting or closing the first pipeline; the third pipeline is communicated with the first pipeline, a second communication position of the third pipeline and the first pipeline is positioned at the upstream side of the third valve, and the third pipeline is communicated with the outside.

In addition to or in lieu of one or more of the features disclosed above, the first communication of the second conduit with the first conduit is located upstream of the third valve.

In addition to or in lieu of one or more of the features disclosed above, the concentration measurement apparatus further comprises a fourth valve disposed in the third conduit for conducting or closing the third conduit.

In addition to or in lieu of one or more of the features disclosed above, the concentration measurement apparatus further comprises a fourth conduit in communication with the first conduit, the fourth conduit for supplying a solid-liquid mixture into the vessel through the first conduit, the solid-liquid mixture supplied by the fourth conduit being of a different source than the solid-liquid mixture supplied by the first conduit.

In addition to or in lieu of one or more of the features disclosed above, the third communication of the fourth conduit with the first conduit is located downstream of the first communication of the second conduit with the first conduit.

In addition to or in lieu of one or more of the features disclosed above, the concentration measurement apparatus further comprises a densitometer for detecting the density of the solid-liquid mixture within the vessel; the controller is in control connection with the densimeter and is used for judging whether the calculated mass ratio is correct or not according to the density.

In addition to or as an alternative to one or more of the features disclosed above, the concentration measurement apparatus further comprises a fifth conduit; the bottom of the container is provided with a liquid outlet, and the fifth pipeline is communicated with the liquid outlet and is used for discharging the solid-liquid mixture and the cleaning liquid in the container.

In addition to or in lieu of one or more of the features disclosed above, the solid-liquid mixture is a pulp, the solids in the solid-liquid mixture are ores, the liquid in the solid-liquid mixture is water, and the cleaning liquid is water.

One of the above technical solutions has the following advantages or beneficial effects:

the second pipeline supplies cleaning liquid into the container through the first pipeline to clean the container, and the cleaning liquid can clean the first pipeline in the process of flowing through the first pipeline, so that the residue of a solid-liquid mixture in the first pipeline is reduced.

Drawings

The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic view showing the structure of a concentration measuring apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a concentration measuring apparatus according to another embodiment of the present application;

FIG. 3 is a schematic view showing the structure of a concentration measuring apparatus according to still another embodiment of the present application;

fig. 4 is a schematic structural view of a concentration measuring apparatus according to still another embodiment of the present application.

The figure identifies the illustration, 101-container; 103-a first line; 105-weighing piece; 107-level gauge; 109-a controller; 111-a second line; 113-a first valve; 115-a second valve; 117-third valve; 119-a third line; 121-fourth valve; 123-fourth line; 125-densitometer; 127-fifth line; 129-inlet; 131-a liquid outlet; 133-solenoid valve; 135-pump body; 137-pipeline; 139-solenoid valve; 141-a first pump body; 143-a first pressure sensor; 145-a second pump body; 147-a second pressure sensor; 149-electromagnetic valve; p1-a first communication place; p2-a second communication site; p3-third communication.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the application, and not to limit the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "plurality" means two or more, unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Please refer to fig. 1. Fig. 1 is a schematic structural view of a concentration measuring apparatus according to an embodiment of the present application. Arrows in the figure indicate fluid flow directions.

In this embodiment, the solid-liquid mixture is a pulp, and the pulp is a mixture of ore and water. The concentration detection apparatus in this embodiment is used to detect the concentration of the pulp, i.e. to detect the mass ratio of the ore in the pulp. The concentration of ore pulp plays an extremely important role in the whole ore dressing process, and the concentration of ore pulp directly affects various technical and economic indexes of the ore dressing process. The concentration of ore pulp to be maintained in production of the concentrating mill can be selected according to actual conditions. The reasonable concentration of ore pulp can not only improve the recovery rate of minerals, but also maintain the consumption of medicaments and water and electricity within a controllable range. The concentration measuring apparatus of the present application is not limited to testing the concentration of pulp, but may also test the concentration of other solid-liquid mixtures, such as mud.

The concentration measuring apparatus includes a vessel 101, a feed assembly 201, a level gauge 107, a weigh piece 105, a controller 109, a drain assembly 205, and a purge assembly 203.

Container 101 has a liquid inlet 129 and a liquid outlet 131. The liquid inlet 129 is located at the top end of the container 101. The liquid outlet 131 is located at the bottom end of the container 101.

The feed assembly 201 communicates with the inlet 129 and is in control connection with the controller 109. The feed assembly 201 is used to supply a solid-liquid mixture into the vessel 101 under the control of the controller 109.

Specifically, the feed assembly 201 includes a first conduit 103, a first valve 113, a first pump body 141, and a first pressure sensor 143.

One end of the first pipeline 103 extends into a tank containing the solid-liquid mixture to be tested, and the other end is communicated with the liquid inlet 129.

The first valve 113 is disposed on the first pipeline 103 and is used for conducting or closing the first pipeline 103. Specifically, the first valve 113 is a solenoid valve. The first valve 113 is in control connection with the controller 109. The controller 109 controls the first valve 113 to open or close the first line 103.

The first pump body 141 is disposed in the first pipe 103 and is located on the upstream side of the first valve 113. The first pump body 141 is in control connection with the controller 109. The controller 109 controls the first pump body 141 to operate or to stop operating. When the first pump body 141 is operated, the solid-liquid mixture in the first pipe 103 is driven to flow, so that the first pipe 103 supplies the solid-liquid mixture into the container 101.

The first pressure sensor 143 is provided in the first pipe 103 and is located on the downstream side of the first pump body 141 and on the upstream side of the first valve 113. The first pressure sensor 143 is in control connection with the controller 109. The first pressure sensor 143 is configured to detect a pressure of the solid-liquid mixture in the first pipeline 103, and send the detection result to the controller 109.

The process by which the controller 109 controls the feed assembly 201 to supply the solid-liquid mixture into the vessel 101 is as follows: the controller 109 controls the first valve 113 to conduct the first line 103. After the controller 109 detects that the pressure in the first pipeline 103 is lower than the first preset value through the first pressure sensor 143, the first pump body 141 is controlled to operate so as to drive the solid-liquid mixture in the first pipeline 103 to flow, and then the first pipeline 103 supplies the solid-liquid mixture into the container 101.

The controller 109 controls the feed assembly 201 to stop the supply of the solid-liquid mixture into the vessel 101 as follows: the controller 109 controls the first valve 113 to close the first line 103. After the controller 109 detects that the pressure in the first pipeline 103 is higher than the second preset value through the first pressure sensor 143, the first pump body 141 is controlled to stop working.

The liquid level gauge 107 is inserted into the container 101 and is in control connection with the controller 109. The level gauge 107 is used to detect the level of the solid-liquid mixture in the vessel 101, thereby obtaining the volume of the solid-liquid mixture in the vessel 101. Specifically, when the level of the solid-liquid mixture within the vessel 101 reaches a predetermined value, the controller 109 controls the feed assembly 201 to stop supplying the solid-liquid mixture into the vessel 101. Since the volume of the vessel 101 is fixed, when the level of the solid-liquid mixture in the vessel 101 reaches a predetermined value, the volume of the solid-liquid mixture in the vessel 101 is known and may be pre-stored in the controller 109.

The container 101 is carried by a weighing member 105. The weighing member 105 is used to weigh the container 101 before and after loading the solid-liquid mixture. The weighing piece 105 is in control connection with a controller 109. The weighing piece 105 sends the weighed weight value to the controller 109.

The controller 109 is configured to calculate a mass ratio of the solid in the solid-liquid mixture according to a weight of the solid-liquid mixture before and after the container 101 is loaded, a volume of the solid-liquid mixture in the container 101, a density of the solid in the solid-liquid mixture, and a density of the liquid in the solid-liquid mixture. The density of the solids in the solid-liquid mixture and the density of the liquid may be pre-stored in the controller 109. The controller 109 may be a computer, a PLC (programmable logic controller ), or the like. The control connections are shown in dashed lines.

Specifically, the mass ratio R of solids in a solid-liquid mixture is calculated using the following formula:

wherein: v is the volume of the solid-liquid mixture in the container, M is the weight of the container in the state of containing the solid-liquid mixture, q is the weight of the container in the state of not containing the solid-liquid mixture, ρ _k To density of solids in the solid-liquid mixture ρ _s Is the density of the liquid in the solid-liquid mixture.

The drain assembly 205 communicates with the outlet 131 and is in control connection with the controller 109. The drain assembly 205 is used to drain fluid from within the vessel 101 under the control of the controller 109. The fluid is, for example, a solid-liquid mixture or a cleaning liquid.

Specifically, the drain assembly 205 includes a fifth line 127, a solenoid valve 133, and a pump body 135.

The fifth pipe 127 communicates with the liquid outlet 131 for discharging the solid-liquid mixture or the cleaning liquid in the container 101.

The electromagnetic valve 133 is disposed in the fifth pipeline 127 for conducting or closing the fifth pipeline 127. The solenoid valve 133 is in control connection with the controller 109.

The pump body 135 is provided in the fifth line 127 and is located on the upstream side of the solenoid valve 133. The pump body 135 is used to drive the flow of fluid within the fifth line 127. The pump body 135 is in control connection with the controller 109.

The process by which the controller 109 controls the discharge assembly 205 to discharge the fluid within the vessel 101 is as follows: the controller 109 controls the electromagnetic valve 133 to conduct the fifth pipeline 127, and the controller 109 controls the pump body 135 to work.

The process by which the controller 109 controls the drain assembly 205 to stop draining fluid from the vessel 101 is as follows: the controller 109 controls the pump body 135 to stop operating, and the controller 109 controls the electromagnetic valve 133 to close the fifth line 127.

The cleaning assembly 203 is in control connection with the controller 109 and supplies cleaning liquid into the vessel 101 under the control of the controller 109 to clean the vessel 101. The cleaning liquid is, for example, water. The cleaning mode can be to flush the inner wall of the container by spraying.

The working process of the concentration measuring device is as follows: the controller 109 controls the weighing member 105 to weigh the weight of the container 101 in a state where the solid-liquid mixture is not loaded. The controller 109 controls the feed assembly 201 to supply the solid-liquid mixture into the vessel 101. When the level of the solid-liquid mixture in the vessel 101 reaches a predetermined value, the level gauge 107 sends a signal to the controller 109, and the controller 109 receives the signal to control the feed assembly 201 to stop supplying the solid-liquid mixture. The controller 109 controls the weighing member 105 to weigh the weight of the container 101 in a state where the solid-liquid mixture is loaded. The controller 109 calculates the mass ratio of the obtained solid in the solid-liquid mixture based on the weight of the solid-liquid mixture, the volume of the solid-liquid mixture in the container 101, the density of the solid in the solid-liquid mixture, and the density of the liquid in the solid-liquid mixture. The controller 109 controls the discharge assembly 205 to discharge the solid-liquid mixture within the vessel 101. The controller 109 controls the cleaning assembly 203 to supply cleaning liquid into the container 101 to clean the container 101. The controller 109 controls the drain assembly 205 to drain the cleaning liquid from the vessel 101.

The concentration measuring device typically detects at intervals. Since the solid-liquid mixture remains in the first pipe 103 during the previous detection, the detection accuracy is affected during the next detection. Therefore, the cleaning assembly 203 is improved according to the embodiment of the present application, so that the cleaning liquid can clean the first pipeline 103, thereby reducing the residual amount of the solid-liquid mixture in the first pipeline 103, and further improving the detection accuracy.

The purge assembly 203 includes a second line 111 and a second valve 115.

The second line 111 communicates with the first line 103. The second line 111 is used for supplying cleaning liquid.

The second valve 115 is disposed on the second pipeline 111 for conducting or closing the second pipeline 111. Specifically, the second valve 115 is a solenoid valve and is in control connection with the controller 109.

Wherein, the first valve 113 and the second valve 115 are both disposed on the upstream side of the first communication point P1 between the second pipe 111 and the first pipe 103.

The controller 109 controls the second valve 115 to open the second pipeline 111 (at this time, the first valve 113 closes the first pipeline 103), so that the second pipeline 111 supplies the cleaning solution into the container 101 through the first pipeline 103, that is, the cleaning solution in the second pipeline 111 flows through the first pipeline 103 and the liquid inlet 129 and then enters the container 101. The controller 109 controls the second valve 115 to close the second pipe 111 so that the second pipe 111 stops supplying the cleaning liquid into the container 101.

The second pipe 111 supplies the cleaning liquid into the container 101 through the first pipe 103 to clean the container 101, and the cleaning liquid can clean the first pipe 103 (the portion from the first connection point P1 to the liquid inlet 129) during the process of flowing through the first pipe 103, so as to reduce the residue of the solid-liquid mixture in the first pipe 103.

To improve cleaning efficiency, the cleaning assembly 203 further includes a conduit 137 and a solenoid valve 139. Line 137 is in direct communication with vessel 101 and is used to supply cleaning liquid directly into vessel 101. The electromagnetic valve 139 is disposed in the pipeline 137 and is in control connection with the controller 109, and the pipeline 137 is conducted or closed under the control of the controller 109.

Thus, the second valve 115 or the solenoid valve 139 can be controlled as necessary to select the second line 111 or the line 137 to supply the cleaning liquid into the container 101.

In this embodiment, the concentration measuring device further includes a densitometer 125. Densitometer 125 is inserted within container 101. Densitometer 125 is used to detect the density of the solid-liquid mixture within vessel 101. The controller 109 is in control connection with the densitometer 125, and is used for judging whether the calculated mass ratio is correct according to the density.

Specifically, after the controller 109 calculates the obtained mass ratio, it compares it with the density detected by the densitometer 125, and if the difference between them is within a predetermined range, the obtained mass ratio is valid, and if the difference between them is beyond the predetermined range, the obtained mass ratio is invalid. The predetermined range may be pre-stored in the controller 109. In the case where the quantitative ratio is not effective, the corresponding solid-liquid mixture can be further detected in other ways.

Thus, the concentration measuring apparatus of the present embodiment can also find out abnormality in the detection result in time.

Please refer to fig. 2. Fig. 2 is a schematic structural view of a concentration measuring apparatus according to another embodiment of the present application. Arrows in the figure indicate fluid flow directions.

The embodiment shown in fig. 2 focuses on the differences from the embodiment shown in fig. 1, and the non-described part can refer to the embodiment shown in fig. 1.

The feed assembly 201 further includes a third conduit 119, a third valve 117, and a fourth valve 121.

One end of the third pipe 119 communicates with the first pipe 103, and the other end communicates with the outside. The third conduit 119 has a second communication P2 with the first conduit 103. The second communication point P2 is located downstream of the first communication point P1.

A third valve 117 is disposed in the first pipeline 103 for conducting or closing the first pipeline 103. Specifically, the third valve 117 is a solenoid valve and is in control connection with the controller 109. The controller 109 controls the third valve 117 to open or close the first pipe 103. The third valve 117 is located on the downstream side of the second communication point P2.

The fourth valve 121 is disposed in the third pipeline 119, and is used for conducting or closing the third pipeline 119. In particular, the fourth valve 121 may be a manual valve.

By providing the third line 119, the solid-liquid mixture remaining in the first line 103 (upstream of the first valve 113) during the previous detection can be emptied when the solid-liquid mixture is detected.

Specifically, the controller 109 controls the feed assembly 201 to supply the solid-liquid mixture into the vessel 101 as follows: the operator causes the fourth valve 121 to open the third line 119. The controller 109 controls the third valve 117 to close the first pipe 103 and controls the first valve 113 to open the first pipe 103 so that the solid-liquid mixture in the first pipe 103 is discharged to the outside through the third pipe 119. After the first pump body 141 is operated for a predetermined period of time, the controller 109 controls the third valve 117 to open the first pipe 103, and the operator causes the fourth valve 121 to close the third pipe 119 so that the solid-liquid mixture in the first pipe 103 is supplied into the container 101.

Compared to the embodiment shown in fig. 1, the embodiment shown in fig. 2 can completely empty the solid-liquid mixture remaining from the previous measurement in the first pipeline 103, and can further improve the measurement accuracy.

In addition, a sample of the solid-liquid mixture can be extracted from the first line 103 via a third line 119. Specifically, during the process of supplying the solid-liquid mixture into the container 101 through the first pipe 103, the operator causes the fourth valve 121 to open the third pipe 119, so that a portion of the solid-liquid mixture in the first pipe 103 flows out through the third pipe 119.

Please refer to fig. 3. Fig. 3 is a schematic structural view of a concentration measuring apparatus according to still another embodiment of the present application. Arrows in the figure indicate fluid flow directions.

The embodiment shown in fig. 3 focuses on the differences from the embodiment shown in fig. 1, and the non-described part can refer to the embodiment shown in fig. 1.

The feed assembly 201 further includes a fourth conduit 123, a second pump body 145, a second pressure sensor 147, and a solenoid valve 149.

The fourth line 123 communicates with the first line 103. The fourth pipe 123 has a third communication point P3 with the first pipe 103. The third communication point P3 is located on the downstream side of the first communication point P1.

The electromagnetic valve 149 is disposed in the fourth pipeline 123 and is in control connection with the controller 109, so as to conduct or close the fourth pipeline 123 under the control of the controller 109.

The second pump 145 is disposed in the fourth pipeline 123, is located at an upstream side of the electromagnetic valve 149, and is in control connection with the controller 109 for driving the solid-liquid mixture in the fourth pipeline 123 to flow under the control of the controller 109.

The second pressure sensor 147 is provided in the fourth pipe 123, is located on the upstream side of the electromagnetic valve 149 and on the downstream side of the second pump 145, and is connected to the controller 109 for detecting the pressure of the solid-liquid mixture in the fourth pipe 123.

The fourth line 123 is used to supply the solid-liquid mixture into the vessel 101 through the first line 103.

The solid-liquid mixture supplied by the fourth line 123 is of a different source than the solid-liquid mixture supplied by the first line 103.

The controller 109 controls the feed assembly 201 to supply a solid-liquid mixture into the vessel 101: the controller 109 controls the first valve 113 to open the first pipe 103 so that the first pipe 103 supplies the solid-liquid mixture into the container 101, or the controller 109 controls the solenoid valve 149 to open the fourth pipe 123 so that the fourth pipe 123 supplies the solid-liquid mixture into the container 101.

So configured, the concentration measurement apparatus is capable of performing concentration detection from one of a plurality of sources of solid-liquid mixtures.

Please refer to fig. 4. Fig. 4 is a schematic structural view of a concentration measuring apparatus according to still another embodiment of the present application. Arrows in the figure indicate fluid flow directions.

The embodiment shown in fig. 4 is a combination of the embodiments shown in fig. 1, 2 and 3.

The feed assembly 201 includes a first line 103, a first valve 113, a third valve 117, a third line 119, a fourth valve 121, a fourth line 123, and a solenoid valve 149.

The first line 103 communicates with the liquid inlet 129 for supplying a solid-liquid mixture into the vessel 101.

The first valve 113 is disposed on the first pipeline 103 and is used for conducting or closing the first pipeline 103.

A third valve 117 is disposed in the first pipeline 103 for conducting or closing the first pipeline 103.

The third line 119 communicates with the first line 103. The second communication point P2 between the third conduit 119 and the first conduit 103 is located on the upstream side of the third valve 117. The third line 119 communicates with the outside.

The fourth valve 121 is disposed in the third pipeline 119, and is used for conducting or closing the third pipeline 119.

The fourth line 123 communicates with the first line 103. The third communication point P3 between the fourth pipe 123 and the first pipe 103 is located downstream of the first communication point P1 between the second pipe 111 and the first pipe 103. The fourth line 123 is used to supply the solid-liquid mixture into the vessel 101 through the first line 103. The solid-liquid mixture supplied by the fourth line 123 is of a different source than the solid-liquid mixture supplied by the first line 103.

The electromagnetic valve 149 is disposed on the fourth pipeline 123 for conducting or closing the fourth pipeline 123.

The purge assembly 203 includes a second line 111 and a second valve 115.

The second line 111 communicates with the first line 103. The second line 111 is used to supply a cleaning liquid into the container 101 through the first line 103, and the cleaning liquid can clean the first line 103 and the container 101.

The second valve 115 is disposed on the second pipeline 111 for conducting or closing the second pipeline 111. Wherein, the first valve 113 and the second valve 115 are both disposed on the upstream side of the first communication point P1 between the second pipe 111 and the first pipe 103. The first communication point P1 is located on the upstream side of the third valve 117.

In an application scenario, the working process of the concentration measuring device for measuring the mass ratio of solids in the solid-liquid mixture supplied by the first pipeline 103 twice is as follows:

the controller 109 controls the first valve 113 and the third valve 117 to open the first line 103, so that the first line 103 supplies the solid-liquid mixture into the container 101. After the controller 109 calculates the mass ratio of solids in the solid-liquid mixture supplied from the first line 103, the controller 109 controls the discharge assembly 205 to discharge the solid-liquid mixture in the vessel 101. The controller 109 controls the first valve 113 to close the first line 103. The controller 109 controls the second valve 115 to open the second pipe 111 so that the second pipe 111 supplies the cleaning liquid into the container 101 through the first pipe 103. The controller 109 controls the drain assembly 205 to drain the cleaning liquid from the vessel 101.

The operator causes the fourth valve 121 to open the third line 119. The controller 109 controls the third valve 117 to close the first pipeline 103 and controls the first valve 113 to conduct the first pipeline 103, so that the solid-liquid mixture supplied by the first pipeline 103 flows out of the outside through the third pipeline 119. After a predetermined period of time, the controller 109 controls the third valve 117 to open the first conduit 103, and the operator causes the fourth valve 121 to close the third conduit 119 so that the first conduit 103 supplies the solid-liquid mixture into the container 101. After the controller 109 calculates the mass ratio of solids in the solid-liquid mixture supplied from the first line 103, the controller 109 controls the discharge assembly 205 to discharge the solid-liquid mixture in the vessel 101. The controller 109 controls the second valve 115 to open the second pipe 111 so that the second pipe 111 supplies the cleaning liquid into the container 101 through the first pipe 103. The controller 109 controls the drain assembly 205 to drain the cleaning liquid from the vessel 101.

In an application scenario, the working process of the concentration measuring device for sequentially measuring the mass ratio of solids in the solid-liquid mixture supplied by the first pipeline 103 and the fourth pipeline 123 is as follows:

the controller 109 controls the first valve 113 and the third valve 117 to open the first line 103, so that the first line 103 supplies the solid-liquid mixture into the container 101. After the controller 109 calculates the mass ratio of solids in the solid-liquid mixture supplied from the first line 103, the controller 109 controls the discharge assembly 205 to discharge the solid-liquid mixture in the vessel 101. The controller 109 controls the second valve 115 to open the second pipe 111 so that the second pipe 111 supplies the cleaning liquid into the container 101 through the first pipe 103. The controller 109 controls the drain assembly 205 to drain the cleaning liquid from the vessel 101.

The controller 109 controls the solenoid valve 149 to open the fourth line 123 and simultaneously controls the third valve 117 to open the first line 103 such that the fourth line 123 supplies the solid-liquid mixture into the vessel 101 through the first line 103. After the controller 109 calculates the mass ratio of solids in the solid-liquid mixture supplied from the fourth line 123, the controller 109 controls the discharge assembly 205 to discharge the solid-liquid mixture in the vessel 101. The controller 109 controls the second valve 115 to open the second pipe 111 so that the second pipe 111 supplies the cleaning liquid into the container 101 through the first pipe 103. The controller 109 controls the drain assembly 205 to drain the cleaning liquid from the vessel 101.

In summary, the embodiment of the present application can reduce the residue of the solid-liquid mixture in the first pipeline 103.

The above steps are presented merely to aid in understanding the method, structure, and core concept of the application. It will be apparent to those skilled in the art that various changes and modifications can be made to the present application without departing from the principles of the application, and such changes and modifications are intended to be included within the scope of the appended claims.

Claims

1. A concentration measuring apparatus, characterized by comprising:

a container having a liquid inlet;

a first pipeline communicated with the liquid inlet and used for supplying a solid-liquid mixture into the container;

the weighing piece is used for weighing the weight of the container before and after loading the solid-liquid mixture;

the liquid level meter is used for detecting the liquid level of the solid-liquid mixture in the container, so as to obtain the volume of the solid-liquid mixture in the container;

the controller is respectively connected with the weighing piece and the liquid level meter in a control way and is used for calculating and obtaining the mass ratio of the solid in the solid-liquid mixture according to the weight of the container before and after the solid-liquid mixture is loaded, the volume of the solid-liquid mixture in the container, the density of the solid in the solid-liquid mixture and the density of the liquid in the solid-liquid mixture;

the second pipeline is communicated with the first pipeline and used for supplying cleaning liquid into the container through the first pipeline, and the cleaning liquid can clean the first pipeline and the container.

2. The concentration measurement apparatus of claim 1, further comprising:

the first valve is arranged on the first pipeline and used for conducting or closing the first pipeline;

the second valve is arranged on the second pipeline and used for conducting or closing the second pipeline;

wherein, first valve with the second valve all set up in the second pipeline with the upstream side of the first intercommunication department of first pipeline.

3. The concentration measurement apparatus of claim 1, further comprising:

the third valve is arranged on the first pipeline and used for conducting or closing the first pipeline;

and the third pipeline is communicated with the first pipeline, the second communication position of the third pipeline and the first pipeline is positioned at the upstream side of the third valve, and the third pipeline is communicated with the outside.

4. A concentration measuring apparatus according to claim 3, wherein,

the first communication point between the second pipeline and the first pipeline is located on the upstream side of the third valve.

5. A concentration measuring apparatus according to claim 3, further comprising:

and the fourth valve is arranged on the third pipeline and used for conducting or closing the third pipeline.

6. The concentration measurement apparatus of claim 1, further comprising:

and the fourth pipeline is communicated with the first pipeline and is used for supplying the solid-liquid mixture into the container through the first pipeline, and the solid-liquid mixture supplied by the fourth pipeline is different from the solid-liquid mixture supplied by the first pipeline in source.

7. The concentration measuring apparatus of claim 6, wherein,

the third communication point between the fourth pipeline and the first pipeline is positioned at the downstream side of the first communication point between the second pipeline and the first pipeline.

8. The concentration measurement apparatus of claim 1, further comprising:

a densitometer for detecting a density of the solid-liquid mixture within the vessel;

the controller is in control connection with the densimeter and is used for judging whether the mass ratio obtained through calculation is correct or not according to the density.

9. The concentration measurement apparatus of claim 1, further comprising:

a fifth pipeline;

the bottom of the container is provided with a liquid outlet, and the fifth pipeline is communicated with the liquid outlet and is used for discharging the solid-liquid mixture and the cleaning liquid in the container.

10. The concentration measuring apparatus of claim 1, wherein,

the solid-liquid mixture is ore pulp, the solids in the solid-liquid mixture are ores, the liquid in the solid-liquid mixture is water, and the cleaning liquid is water.