CN110531697A - A kind of monitoring system and stock mixing system improving kaolin quality stability - Google Patents

Abstract

The present invention provides a kind of monitoring system for improving kaolin quality stability, using the hierarchical control network structure of management level to control layer to mechanical floor, automatic monitored control system is constituted by industrial control computer and PLC programmable controller, acquisition receives various states, failure and accident situation from field instrument detection device, Automation Elements, completes the automatic control function with slurry to dressing plant.A kind of stock mixing system improving kaolin quality stability is provided simultaneously, apply concentration basin to collection stock tank and blend pond in it is with slurry during, the slurries to multiple collection stock tanks can be needed by production, it is conveyed into and is blended in pond in proportion under the control of PLC by the formula being previously set, it is automatically performed process with slurry, replace artificial various adverse effects with slurry, positive effect is played to stabilized product quality.

Description

A kind of monitoring system and stock mixing system improving kaolin quality stability

Technical field

The present invention relates to the manufacture field of nonmetallic ore more particularly to a kind of monitoring systems for improving kaolin quality stability System and stock mixing system.

Background technique

The processing of kaolin ore is compared with other metallic ores, and processing technology more falls behind, and process is more extensive, The equipment used is relatively simple, high degree of automation.Entire production process is affected by human factors larger, it is more difficult to process Carry out Precise control, the unstable quality of product.Dressing plant's production automation degree is low at present, and production scheduling personnel can not be right Production equipment and production process carry out unified effective management, and the full manual operations of process with slurry seriously affects product quality.

Such as when sampling pulp manual sampling sample size it is insufficient, the problems such as sample point is unevenly distributed, lead to submitted sample It is under-represented, cause the inaccuracy with paddle link.When outsourcing raw ore and local raw ore carry out ore matching existing working condition very Expected results are not achieved although ratio is clear in hardly possible quantization often, for the qualification rate for guaranteeing product, when operation often not Obtaining reduces the ore pulp ratio of inferior quality, causes the preferable ore pulp waste of quality.

Summary of the invention

The purpose of the present invention is to provide a kind of methods for improving kaolin quality stability, monitor system by capital equipment System and automatic slurry-distributing system reinforce the control to production process, to improve the accuracy of sampling and proportion, guarantee that concentrate quality is steady It is fixed, reduce waste.

Technical problem solved by the invention can be realized using following technical scheme:

A kind of monitoring system improving kaolin quality stability, it is characterized in that: using management level to control layer to equipment The hierarchical control network structure of layer, is divided into management level, control layer and mechanical floor, the management level mainly include central control room Simulating display screen and industrial computer, the control layer are mainly PLC controller, and the mechanical floor mainly includes that instrument detection is set Standby, element and control executing agency, except communication is outer between management level, control layer and mechanical floor, respectively independent, nothing is electrically Connection.

Preferably, setting on the simulating display screen and industrial computer of the central control room of the management level statistics have shown Table, indicator light, the simulating display screen are divided into two parts, show full plant process flow capital equipment operating status and with slurry respectively System automatic slurry-distributing situation, the mechanical floor mainly include the operating status of each running equipment.

A kind of stock mixing system improving kaolin quality stability is applied in concentration basin to collection stock tank and blends matching in pond Slurry process controls each collection stock tank charging it is characterized in that: electric switching valve is respectively set in the discharge nozzle road of each concentration basin It opens or closes；The main discharge nozzle road of each concentration basin is respectively set branch and connects electric switching valve and uses as feeding； Electric control valve and flowmeter is respectively set on each collection stock tank outlet conduit；At the top of each collection stock tank and blending pond respectively Ultrasonic level gage is installed, the feed pipe in the blending pond is equipped with electric switching valve.

Preferably, the valve opening of the electric control valve is continuously adjustable 0~100%.

Preferably, the collection stock tank is externally provided with air compressor machine, and the open and close of the air compressor machine is controlled with computer.

The present invention provides a kind of monitoring system for improving kaolin quality stability, can by industrial control computer and PLC Programmable controller constitute automatic monitored control system, acquisition receive from field instrument detection device, Automation Elements various states, Failure and accident situation complete the automatic control function with slurry to dressing plant.It is stable that a kind of raising kaolin quality is provided simultaneously Property stock mixing system, the slurries to multiple collection stock tanks can be needed by production, by the formula that is previously set under the control of PLC by Ratio, which is conveyed into, to be blended in pond, and process with slurry is automatically performed, and replaces artificial various adverse effects with slurry, to stabilized product quality Play positive effect.

Detailed description of the invention

Fig. 1 is the flow chart of ore-dressing technique.

Fig. 2 is the connection schematic diagram of automatic slurry-distributing system.

Fig. 3 is the control flow schematic diagram of automatic slurry-distributing.

In figure, 1- concentration basin, 2- collection stock tank, 3- blend pond 3,4- electric switching valve, electric control valve, 6- flowmeter, 7- Ultrasonic level gage, branch 8.

Specific embodiment

The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.

Fig. 1~3 are preferred embodiments of the invention, if Fig. 1 is the flow chart of kaolin ore-dressing technique, to realize ore-dressing practice Automation, in each running equipment all be provided with monitoring alarm sensor, capital equipment monitoring system be using management The hierarchical control network structure of layer-control layer-mechanical floor, using " simulating display screen+programmable controller (PLC)+industry is counted The multilevel monitor of calculation machine ", is divided into management level, control layer and mechanical floor, and management level mainly include the simulative display of central control room Screen and industrial computer, control layer are mainly PLC controller, and mechanical floor mainly includes that meter detection equipment, element and control are held Row mechanism.It is respectively independent between management level, control layer and mechanical floor in addition to communication, without connection electrically, realize various function It can be independent.Therefore, even if certain a part in system breaks down, the work of system other parts will not be influenced, to make Whole system has high reliability, really realizes layered distribution type optimal control.

Simultaneous display factory owner wants equipment operation condition on the simulating display screen and industrial computer of central control room, if It statistics have shown table, indicator light, such as be green instruction when equipment is run, be red when equipment stops；It is with slurry to entire mine factory The whole parameter such as material position, flow and valve opening of system carries out whole real time monitoring.Imitation screen is divided into two parts, shows respectively Full plant process flow capital equipment operating status and stock mixing system automatic slurry-distributing situation.The achievable technique ginseng with slurry on control layer The functions such as several setting, measurement, display, control, alarm, record, inquiry and printing.Mechanical floor mainly includes each running equipment Operating status, such as rock feeder, belt conveyor, smash pulp grinder, log washer, eddy flow machine etc. and concentration basin, back pool etc. are respectively matched The operating status of stock tank.

Monitoring system is connected by the present invention with stock mixing system, realizes automatic slurry-distributing, automatic slurry-distributing system is to apply be concentrated Pond 1 is to collection stock tank 2 and blends the process with slurry in pond 3, and the composition of equipment and instrument is as shown in Fig. 2, be described as follows:

Be respectively set electric switching valve 4 on the discharge nozzle road of each concentration basin 1, control unlatching that each collection stock tank 2 is fed or It closes；Branch 8 is respectively set on the main discharge nozzle road of each concentration basin 1 and connects electric switching valve 4 and is used as feeding, it can be by work Skill requires to be sampled (sample time, sample interval, feeding amount can be arranged in computer) under control of the computer, this Sample just saves the trouble of manual sampling and realizes that the consistency of sample time guarantees that the material sample fetched is representative, can be preferably The stabilization for controlling product quality, provides production management level；

An electric control valve 5 and a flowmeter 6, the aperture of valve is respectively set on each 2 outlet conduit of collection stock tank It is continuously adjustable 0~100%, the flow of pipeline starching can accurately be thus controlled, guarantee is with slurry to be carried out in proportion；

In each collection stock tank 2 and 3 top of pond installation ultrasonic level gage 7 respectively is blended, operator can be in computer screen Slurry position in real time is seen on upper and big imitation screen, in addition when slurry position is higher or lower on computer screen and on big imitation screen It will pop up warning message and issue alarm, prompt operator note that control system will be cut automatically when slurry position is excessively high too low Break or open corresponding valve and carry out linkage control, can avoid slurry spilling occur and stock tank position is too low also in the operation of discharge；

Electric switching valve 4 is set on the feed pipe in blending pond 3, is entered for controlling the slurry in pipeline.

To prevent line clogging, press is emptied in collection 2 peripheral hardware of stock tank, is dredged with air-blowing, once there is line clogging, air compressor machine It begins to purge, the open and close of air compressor machine can be controlled with computer.

After equipment instrument more than being configured with, it can be realized by monitoring system and multiple 2 inflow and outflows of collection stock tank are starched Amount is controlled and is adjusted, and can be achieved the purpose that with slurry in proportion.When collection 2 quantity of stock tank is excessive, multiple collection stock tanks 2 can be divided into Several subsystems, each stock tank of subsystem internal can first interworking, then produced by the proportion starched between subsystem.

Operator can carry out formula by keyboard or mouse on man-computer interface and select, and select formulation data Can descend into PLC, complete automatic slurry-distributing under the control of PLC system, detailed process is as follows: PLC system, which collects, to be mounted on The signal of corresponding pipeline flow meter 6 adjusts and the motorized adjustment that collection stock tank 2 exports is arranged in by the processing and operation of data The aperture of valve 5 accurately controls load through operation adjustment repeatedly at any time.

The slurries to multiple collection stock tanks 2 are needed by production, it, then will proportion by formulation ratio at the slurries of different demands Good slurries, which are stored in, to be blended in pond 3, and formula of size process is automatically performed.Control of the wet end furnish automatic control system in PLC It is lower can be accurately controlled ore pulp in the ratio being previously set be conveyed into blend pond 3, it is ensured that the stabilization of end product quality.It is controlled Process is as shown in Figure 3.

The above is only present pre-ferred embodiments, is not intended to limit the scope of the present invention, therefore Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still fall within Protection scope of the present invention.

Claims (5)

1. a kind of monitoring system for improving kaolin quality stability, it is characterized in that: using management level to control layer to mechanical floor Hierarchical control network structure, be divided into management level, control layer and mechanical floor, the management level mainly include the mould of central control room Quasi- display screen and industrial computer, the control layer are mainly PLC controller, and the mechanical floor mainly includes that instrument detection is set Standby, element and control executing agency, except communication is outer between management level, control layer and mechanical floor, respectively independent, nothing is electrically Connection.

2. a kind of monitoring system for improving kaolin quality stability according to claim 1, it is characterised in that: the pipe The simulating display screen and industrial computer for managing the central control room of layer are equipped with digital wash, indicator light, the simulative display Screen is divided into two parts, shows full plant process flow capital equipment operating status and stock mixing system automatic slurry-distributing situation respectively, described Mechanical floor mainly includes the operating status of each running equipment.

3. a kind of stock mixing system for the raising kaolin quality stability being used cooperatively with monitoring system described in claim 1, Apply concentration basin to collection stock tank and blend pond in it is with slurry during, it is characterized in that: each concentration basin discharge nozzle road Electric switching valve is respectively set, controls opening or closing for each collection stock tank charging；The main discharge nozzle road point of each concentration basin Not She Zhi branch and connect electric switching valve as feeding use；Electric control valve is respectively set on each collection stock tank outlet conduit And flowmeter；It each collection stock tank and blends ultrasonic level gage is installed respectively at the top of pond, on the feed pipe in the blending pond Equipped with electric switching valve.

4. a kind of stock mixing system for improving kaolin quality stability according to claim 3, it is characterised in that: the electricity The valve opening of dynamic regulating valve is continuously adjustable 0~100%.

5. a kind of stock mixing system for improving kaolin quality stability according to claim 3, it is characterised in that: the collection Stock tank is externally provided with air compressor machine, and the open and close of the air compressor machine is controlled with computer.