CN203772378U - Intermittent feeding and constant discharging automatic-control system - Google Patents

Abstract

The utility model relates to an intermittent feeding and constant discharging automatic-control system. The system mainly comprises a transit cabin, valves, a reaction kettle, a weight measuring instrument, a controller, and a material cabin. The material cabin, the transit cabin, and the reaction kettle are arranged sequentially. The bottom end of the transit cabin is provided with the weight measuring instrument. The three valves are respectively a pneumatic adjusting valve, a stop valve A, and a stop valve B. The stop valve A is arranged on a transmission pipeline between the material cabin and the transit cabin. The pneumatic adjusting valve and the stop valve B are sequentially arranged on a transmission pipeline between the transit cabin and the reaction kettle. The weight measuring instrument controls the operation of the pneumatic adjusting valve, the stop valve A, and the stop valve B through the controller. The system is advantaged in that by virtue of utilizing the weight measuring instrument to weigh the transit cabin and employing the pneumatic adjusting valve, the stop valve A, and the stop valve B cooperatively, materials in the material cabin can be moved out timely and fed into the reaction kettle accurately.

Description

A kind of clearance-type charging, quantitative discharging automatic control system

Technical field

The utility model relates to a kind of clearance-type charging, quantitative discharging automatic control system, specifically the material in a kind of material bin can go out in time and can be accurately to the device that drops into material in reactor.

Background technology

At present, in Chemical Manufacture, in middle roll-over, weighing device is set, by the roll-over of weighing device centering, weigh in real time, now the valve open at transfer bin discharge port external place, starts discharging, the weight weighing when weighing device reaches after setting value, the valve of closing material bin discharging opening place, stops discharging, thereby has realized interlocked control.But, in this course, in discharging, also need to enter material to middle roll-over transfer, or in the situation that the material in middle roll-over need to shift out simultaneously, during this time, the weight of middle roll-over, in constantly changing, therefore just cannot be controlled accurately the amount of producing of material in the process of using the roll-over of weighing device centering to weigh, will make material add or add less, finally affect whole production.

Summary of the invention

The technical problems to be solved in the utility model be to provide that material in a kind of material bin can go out in time and can be accurately to the clearance-type charging, the quantitative discharging automatic control system that drop into material in reactor.

In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of clearance-type charging, quantitative discharging automatic control system, and its innovative point is: mainly comprise middle roll-over, conveyance conduit, valve, reactor, weight measurement instrument, controller and material bin;

Described material bin, middle roll-over and reactor set gradually, the discharging opening of material bin is connected with the charging aperture of middle roll-over by conveyance conduit, the discharging opening of middle roll-over is connected with the charging aperture of reactor by conveyance conduit, in the bottom of middle roll-over, is provided with weight measurement instrument;

Described valve one has three, is respectively pneumatic control valve, stop valve A and stop valve B, and wherein stop valve A is arranged on the conveyance conduit between material bin and middle roll-over, and pneumatic control valve and stop valve B are successively set on the conveyance conduit of middle roll-over and reactor;

Described weight measurement instrument is controlled respectively the operation of pneumatic control valve, stop valve A and stop valve B by controller, wherein wt detector is connected with the signal input part of controller, and pneumatic control valve, stop valve A and stop valve B are all connected with the signal output part of controller.

The utility model has the advantage of: stop valve A is normally open, guarantee that the material of output in material bin can be transferred in middle roll-over in time, the not production of material in ectocrine feed bin; When needs are when adding material in reactor, close stop valve A, open stop valve B starts to add material in reactor simultaneously, and utilize pneumatic control valve to regulate the flow of feeding, when reaching requirement, the quality that the material in weight detector detects middle roll-over reduces closes stop valve B, stop feeding, then open stop valve A, guaranteed like this quality of the material that at every turn adds.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of clearance-type charging of the present utility model, quantitative discharging automatic control system.

Fig. 2 is the connection block diagram of clearance-type charging of the present utility model, quantitative discharging automatic control system.

Embodiment

Schematic diagram is as shown in Figure 1, 2 known, and clearance-type charging of the present utility model, quantitative discharging automatic control system mainly comprise middle roll-over 4, conveyance conduit 3, valve, reactor 7, weight measurement instrument 8, controller 11 and material bin 1.

Material bin 1, middle roll-over 4 and reactor 7 set gradually, the discharging opening of material bin 1 is connected with the charging aperture of middle roll-over 4 by conveyance conduit 3, the discharging opening of middle roll-over 4 is connected with the charging aperture of reactor 7 by conveyance conduit 3, in the bottom of middle roll-over 4, is provided with weight measurement instrument 8.

Valve one has three, be respectively pneumatic control valve 5, stop valve A 2 and stop valve B 6, wherein stop valve A 2 is arranged on the conveyance conduit 3 between material bin 1 and middle roll-over 4, and pneumatic control valve 5 and stop valve B 6 are successively set on the conveyance conduit 3 of middle roll-over 4 and reactor 7.

Weight measurement instrument 8 is controlled respectively the operation of pneumatic control valve 5, stop valve A 2 and stop valve B 6 by controller 11, controller 11 is built-in with signal input part 9, signal output part 13, central processing unit 10, system program storer 12 and digital/analog signal transducer 14, wherein, signal input part 9 is connected with weight detector 8, and signal output part 13 is connected with pneumatic control valve 5, stop valve A 2 and stop valve B 6 respectively.

When needs are when adding material in reactor 7, close stop valve A 2, weight detector 8 is transferred to controller 11 by the weight of now middle roll-over 4 by signal input part 9, controller 11 calculates by the weighing scale of now middle roll-over 4 weight that needs convey materials, then open stop valve B 6 and pneumatic control valve 5, material in middle roll-over 4 is carried gradually in reactor 7, when weight detector 8 detects quality that middle roll-over 4 reduces and soon reaches, by regulating pneumatic control valve 5 to reduce flow, the weight minimizing that middle roll-over 4 detected when weight detector 8 reaches after setting value, close stop valve B 6 and pneumatic control valve 5, stop feeding, then open stop valve A 2, material bin 1 is normally to the interior convey materials of middle roll-over 4.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1. clearance-type charging, a quantitative discharging automatic control system, is characterized in that: mainly comprise middle roll-over, conveyance conduit, valve, reactor, weight measurement instrument, controller and material bin;

Described material bin, middle roll-over and reactor set gradually, the discharging opening of material bin is connected with the charging aperture of middle roll-over by conveyance conduit, the discharging opening of middle roll-over is connected with the charging aperture of reactor by conveyance conduit, in the bottom of middle roll-over, is provided with weight measurement instrument;

Described valve one has three, is respectively pneumatic control valve, stop valve A and stop valve B, and wherein stop valve A is arranged on the conveyance conduit between material bin and middle roll-over, and pneumatic control valve and stop valve B are successively set on the conveyance conduit of middle roll-over and reactor;

Described weight measurement instrument is controlled respectively the operation of pneumatic control valve, stop valve A and stop valve B by controller, wherein wt detector is connected with the signal input part of controller, and pneumatic control valve, stop valve A and stop valve B are all connected with the signal output part of controller.