CN2198029Y

CN2198029Y - Messuring and controlling device for floating feeding material concentration and adding medicine

Info

Publication number: CN2198029Y
Application number: CN 94237617
Authority: CN
Inventors: 李文郁
Original assignee: ZHUZHOU COAL WASHING FACTORY HUNAN PROV
Current assignee: ZHUZHOU COAL WASHING FACTORY HUNAN PROV
Priority date: 1994-06-21
Filing date: 1994-06-21
Publication date: 1995-05-24
Anticipated expiration: 2004-06-21

Abstract

The utility model discloses a measuring and controlling device for floating feeding material concentration and adding medicine, which comprises a concentration measuring device, electromagnetic flowmeter, and a metering pump. The concentration measuring device comprises a float-type densitometer, a measuring barrel, and a stabilizing barrel. The measuring barrel is connected with a stirring barrel and a feed pipe for mortar via pipelines, the float-type densitometer is installed in the stabilizing barrel, and the stabilizing barrel is installed in the measuring barrel; the upper opening of the barrel wall of the measuring barrel is connected with via a pipeline and the opening of the barrel bottom is connected with the stirring barrel and the feed pipe for mortar of a flotation machine via barrel channels. The utility model has the advantages that the measurement of charging concentration and the flow quantity at the outlet part of the stirring barrel is accurate and timely, the whole system is simple, the operation is reliable, the product quality is stable, the output rate can be improved, the flotation agent can be saved, etc.

Description

Messuring and controlling device for floating feeding material concentration and adding medicine

The utility model relates to the measure and control device of a kind of floatation feed concentration, dosing, belongs to the measure and control device class with the fluid separation applications solid material.

Flotation device is the capital equipment of ore dressing plant and coal preparation plant, and the ore dressing plant is in order to reclaim concentrate.Coal preparation plant is in order to reclaim cleaned coal from black water, its basic role is, make the coal slurry inflation that is mixed with medicament, form the mineralized froth of absorption coal grain, reclaim foam and obtain cleaned coal, so the technological parameter that flotation device will be controlled is 1, go into floating pulp density, 2, go into floating mineral slurry flux, 3, with the floating agent addition of going into to float the adaptation of dry coal amount, 4, flotation cabinet chats slurries position, 1 of above-mentioned technological parameter, there is defective in 3 existing measure and control device, as adopt radioisotope densimeter to measure pulp density, with gear oil pump or solenoid control floating agent addition, there is system complex, accident is many, the observing and controlling error is big, and adjustment, maintenance difficult can not keep to produce normally changing into manually after the operation.

The purpose of this utility model provides a kind ofly can accurately measure pulp density, thereby accurately drops into floating agent, simple in structure, the floatation feed concentration of reliable operation, the measure and control device of dosing.

The purpose of this utility model realizes by following manner, it comprises apparatus for measuring concentration, electromagnetic flowmeter and adjustable dosing pump, gather, handle pan feeding concentration, flow signal and control pulp density, flow, be tracked into floating dry coal amount and add technological parameters such as pharmaceutical quantities by Industrial Control Computer (calling industrial computer in the following text), realize the flotation device optimum condition.

The utility model has the advantages that at agitator discharging opening place measurement pan feeding concentration, flow, thereby observing and controlling accurately, in time, simple in structure, the reliable operation of whole system has played stabilized product quality after the operation, improve productive rate, saves effects such as floating agent.

Embodiment of the present utility model is provided by appended accompanying drawing, and Fig. 1 adopts floatation process parameter investigating process equipment contact figure of the present utility model, and Fig. 2 is float-type densitometer, measurement, stabilizing sleeve structural representation.Below in conjunction with the description of drawings the utility model and the course of work.With reference to accompanying drawing, the utility model comprises apparatus for measuring concentration, electromagnetic flowmeter 8 and adjustable dosing pump 6, apparatus for measuring concentration comprises floating drum densitometer 4 and measures tube 5, stabilizing sleeve 2-3 measures tube 5 and links to each other with agitator 3 with pipeline by the barrel upper shed, and the tube bottom opening links to each other with the feed pipe for mortar of agitator to flotation device 7 with pipeline, measure on the tube and also be provided with overflow pipe 2-1, overflow pipe links to each other with barrel and the agitator feed pipe for mortar to flotation device respectively.The float-type densitometer is installed among the stabilizing sleeve 2-3, and stabilizing sleeve 2-3 is contained in and measures in the tube 5; Stabilizing sleeve is linked to be by long top and short bottom, and lower axis is the top axis slightly relatively, and with flow-stopping plate 2-2, the appropriate position, top has change of current hole outside the top.

Its course of work is as follows: be installed in the apparatus for measuring concentration of flotation device feeding mouth and electromagnetic flowmeter and record actual go into to float pulp density and flow, and input industrial computer and the given concentration of flotation driver, flow value compares, deviate is regulated by PIO, export control signal then and remove to control raw ore slurry and two electrically operated valves 1 of clear water of agitator porch, 2, when measuring concentration greater than given concentration, then open big Clean water valve 1, otherwise then turn down, when equating, two signals reach balance, make Clean water valve keep this aperture position, even pulp density remains in the given scope.When measuring flow greater than given flow, then turn down raw ore valve 2, otherwise open big, equate to keep raw ore valve opening position up to two signals, the raw ore flow is remained in the given range, the actual measurement pulp density that the while industrial computer will collect, flow signal carries out data to be handled, calculate into floating dry coal amount, in conjunction with given dosing coefficient (is the medicine consumption, go into to float the pharmaceutical quantities that dry coal amount per ton need be added) calculate the pharmaceutical quantities of need adding, the administration timing of drug of industrial computer output control signal control adjustable dosing pump is a jig frequency, just can reach and be tracked into the purpose that floating dry coal amount is added medicament automatically, because of the stroke capacity of adjustable dosing pump is adjustable, so different pharmaceutical quantities can be added by technological requirement in each chamber of flotation, thereby the revolution of control adjustable dosing pump unit interval is a jig frequency, just can satisfy the distribution multiple spot of floatation process requirement, Automatic Dosing in proportion.

Claims

1, the measure and control device of a kind of floatation feed concentration, dosing, comprise apparatus for measuring concentration, electromagnetic flowmeter, adjustable dosing pump and Industrial Control Computer, it is characterized in that described apparatus for measuring concentration comprises float-type densitometer (4) and measures tube (5), stabilizing sleeve (2-3), measure tube (5) and link to each other with agitator (3) with pipeline by the barrel upper shed, the tube bottom opening links to each other with the feed pipe for mortar of agitator to flotation device with pipeline; The float-type densitometer is contained in the stabilizing sleeve (2-3), and stabilizing sleeve (2-3) is contained in to be measured in the tube (5); Stabilizing sleeve is linked to be by long top and short bottom, and lower axis is the top axis slightly relatively, and with flow-stopping plate (2-2), the appropriate location, top has change of current hole outside the top.

2, the measure and control device of floatation feed concentration according to claim 1, dosing is characterized in that also being provided with overflow pipe on the described measurement tube, and overflow pipe links to each other with barrel and the agitator feed pipe for mortar to flotation device respectively.

3, the measure and control device of floatation feed concentration according to claim 1, dosing is characterized in that described adjustable dosing pump is the stroke capacity adjustable dosing pump.