Automatic discharging inclined plate thickener

Abstract

The utility model discloses an automatic discharge inclined plate thickener, which solves the problems that the fluctuation conditions of material properties and grading conditions often occur in a mineral separation and concentration process, and if a discharge valve is not adjusted in time when the material properties fluctuate, the underflow blockage, the overflow muddy flow and the like are easily caused from the aspects of automatic detection, automatic discharge and the like of inclined plate equipment. According to the technical scheme of the invention, the flow rate of supplied materials and the pressure value of a bottom cone are monitored in real time and fed back to a PID control system, the set pressure transmitting value is converted into the concentration of the bottom cone, and the system controls the opening and closing of a bottom cone self-control valve, so that the concentration of the bottom cone can be controlled. The discharge index of inclined plate equipment is stabilized, the sorting efficiency is improved, and energy is saved; and meanwhile, the investment of labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation technical field, concretely is a kind of automatic discharge inclined plate thickener. BACKGROUND

[0002] There is often fluctuation of material properties and separation conditions in the beneficiation concentration process, and the conventional inclined plate equipment needs to control the discharge valve manually. If the discharge valve cannot be adjusted in time when the material properties fluctuate, it will easily cause the bottom flow to be blocked, the overflow to run turbid, and other situations to occur. It seriously affects the subsequent separation process and reduces the separation efficiency, which reduces the material recovery rate and affects the technical and economic indicators. SUMMARY

[0003] In view of the above problems, the utility model solves the above problems from the aspects of automatic detection and automatic discharge of the inclined plate equipment. The flow of incoming material and the pressure value of the bottom cone are monitored in real time, and the feedback is sent to the PID control system. According to the set pressure variable value, the bottom cone concentration is converted, the system controls the opening and closing of the bottom cone automatic valve, stabilizes the discharge index of the inclined plate equipment, improves the separation efficiency, saves energy, and reduces the investment of labor cost.

[0004] Specifically, the utility model provides an automatic discharge inclined plate thickener, which comprises an inclined plate upper tank, a cone hopper, a feeding device, a feeding flow concentration meter, a pressure transmitter, an electric control valve and a PID system.

[0005] The feeding flow concentration meter is installed at the front end of the feeding device, and the properties of incoming material are monitored in real time and fed back to the PID system. The material is fed into the inclined plate upper tank by the feeding device for solid-liquid separation treatment, and the concentrated solid particles are settled in the cone hopper and then discharged through the electric control valve. The pressure transmitter is installed in the upper part of the cone hopper, and the pressure value in the cone hopper is monitored in real time and fed back to the PID system.

[0006] Optionally, the PID system analyzes whether the incoming material exceeds the design range of the inclined plate equipment according to the fluctuation of the comprehensive concentration and flow of the solid particles of the incoming material input by the feeding flow concentration meter, and prepares for discharge adjustment according to the analysis result, and gives an alarm if necessary.

[0007] Optionally, the PID system sets a bottom pressure-concentration curve in combination with the pre-set physical properties of different materials according to the pressure value in the cone hopper input by the pressure transmitter, and converts the bottom cone pressure into real-time concentration by referring to the set curve. Then, the PID system controls the opening and closing of the electric control valve according to the discharge concentration parameters formulated, to ensure stable discharge of the equipment and realize high automation.

[0008] Optionally, the PID system sets automatic and manual control procedures, and the central control room can observe the operating parameters of the inclined plate device in real time and can select automatic or manual control.

[0009] The automatic discharge inclined plate thickener has the advantages that:

[0010] The automatic discharge inclined plate thickener can effectively improve the working efficiency of the inclined plate device, stabilize the mineral processing technology production, improve the resource recovery rate, reduce the production cost, and the like.

[0011] (1) The automatic discharge inclined plate thickener can eliminate the fluctuation interference of the mineral processing technology. In the mineral processing technology, the solid particle material specific gravity, particle size, and feed concentration of the material fed into the inclined plate device change due to the uncertain factors in the process link. If the discharge adjustment of the inclined plate device is not performed in time, the inclined plate discharge underflow concentration is low, the working conditions of the subsequent process link are not met, the inclined plate concentration is increased, the underflow discharge is blocked, overflow is mixed, or tailings are thrown, the safety hazard of the device itself is caused, and the recovered resources are wasted. The subsequent separation process is seriously affected, the separation efficiency is reduced, the material recovery rate is reduced, and the resources and energy are wasted.

[0012] (2) The automatic discharge inclined plate thickener can improve the inclined plate device operation environment and labor conditions and reduce the operation and maintenance cost. No special person needs to be on duty, and the labor cost is reduced. Thus, the safety stability and economy of the enterprise device operation are improved, and the clean and safe production is improved.

[0013] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the drawings:

[0015] Figure 1 is a structural schematic view of the automatic discharge inclined plate thickener according to one embodiment of the present application.

[0016] In the drawing: 1 - inclined plate upper box, 2 - cone hopper, 3 - feeding device, 4 - feeding flow concentration meter, 5 - pressure transmitter, 6 - electric control valve, 7 - PID system. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0018] Figure 1 It is a structural schematic diagram of the automatic discharge inclined plate thickener according to an embodiment of the present application, as shown in the figure, the embodiment of the present application provides an automatic discharge inclined plate thickener, which comprises an inclined plate upper tank 1, a conical hopper 2, a feeding device 3, a feeding flow concentration meter 4, a pressure transmitter 5, an electric control valve 6 and a PID system 7. Figure 1 The PID system 7 is connected with the feeding flow concentration meter 4, the pressure transmitter 5 and the electric control valve 6.

[0019] The feeding flow concentration meter 4 is installed at the front end of the feeding device 3, and can monitor the properties of incoming materials in real time and feed back to the PID system 7; the materials are fed into the inclined plate upper tank 1 by the feeding device 3 for solid-liquid separation treatment, and the concentrated solid particles are settled in the conical hopper 2 and then discharged through the electric control valve 6; the pressure transmitter 5 is installed in the upper part of the conical hopper 2, and can monitor the pressure value in the conical hopper 2 in real time and feed back to the PID system 7.

[0020] In an embodiment of the present application, the PID system 7 analyzes whether the incoming materials exceed the design range of the inclined plate equipment according to the fluctuation of the comprehensive concentration and flow of the solid particles of the incoming materials input by the feeding flow concentration meter 4, and performs discharge adjustment preparation according to the analysis result, and gives an alarm prompt when necessary.

[0021] In an embodiment of the present application, the PID system 7 sets a bottom pressure-concentration curve in combination with the pre-set physical properties of different materials according to the pressure value in the conical hopper 2 input by the pressure transmitter 5, converts the bottom conical pressure into real-time concentration by referring to the set curve, and then controls the opening and closing of the electric control valve 6 according to the set discharge concentration parameter, so as to ensure stable discharge of the equipment and realize high automation.

[0022] In an embodiment of the present application, the PID system 7 sets automatic and manual control programs, and the central control room can observe the running parameters of the inclined plate equipment in real time and can select automatic or manual control.

[0023] Thus far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but it is easily understood by those skilled in the art that the protection scope of the present application is not limited to these specific embodiments. On the premise of not deviating from the technical principles of the present application, those skilled in the art can disassemble and combine the technical solutions in the above-described embodiments, or can make equivalent changes or replacements to the related technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. An automatic discharge inclined plate thickener characterized by, The application relates to a slant plate feeding device, which comprises a slant plate upper box (1), a conical hopper (2), a feeding device (3), a feeding flow concentration meter (4), a pressure transmitter (5), an electric control valve (6) and a PID system (7). The feeding flow concentration meter (4) is installed at the front end of the feeding device (3) and can monitor the properties of incoming materials in real time and feed back to the PID system (7); the materials are fed into the slant plate upper box (1) by the feeding device (3) for solid-liquid separation treatment, the concentrated solid particles are settled in the conical hopper (2) and then discharged through the electric control valve (6); the pressure transmitter (5) is installed at the middle and upper part of the conical hopper (2) and can monitor the pressure value in the conical hopper (2) in real time and feed back to the PID system (7).

2. The automatic discharge inclined plate thickener according to claim 1, characterized in that, The PID system (7) can analyze whether the incoming materials exceed the design range of the slant plate device according to the fluctuation of the comprehensive concentration and flow of the solid particles in the incoming materials input by the feeding flow concentration meter (4) and the preset parameters, can prepare for discharge adjustment according to the analysis result and can give an alarm when necessary.

3. The automatic discharge inclined plate thickener according to claim 1, characterized in that, The PID system (7) can convert the bottom conical pressure into real-time concentration by setting the bottom pressure-concentration curve according to the pressure value in the conical hopper (2) input by the pressure transmitter (5) and the physical properties of different materials; then, the PID system (7) can control the opening and closing of the electric control valve (6) according to the discharge concentration parameters to ensure stable discharge of the device and realize high automation.

4. The automatic discharge inclined plate thickener according to claim 1, characterized in that, The PID system (7) is provided with automatic and manual control programs, the central control room can observe the running parameters of the slant plate device in real time and can select automatic or manual control.

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