CN217910116U

CN217910116U - Double-tank grinding system capable of realizing automatic switching by detecting operation of diaphragm pump

Info

Publication number: CN217910116U
Application number: CN202221832621.2U
Authority: CN
Inventors: 赵金明; 路印; 郭丽萍
Original assignee: Zibo Qimingxing New Material Co ltd
Current assignee: Zibo Qimingxing New Material Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-29
Anticipated expiration: 2032-07-14

Abstract

The utility model relates to an automatic switch-over that two jars ground, concretely relates to realize automatic switch-over's two jars grinding system through detecting the diaphragm pump operation. The device comprises a stirring tank A and a stirring tank B which are connected in parallel, wherein discharge ports of the stirring tank A and the stirring tank B are both connected with the same pneumatic diaphragm pump, the pneumatic diaphragm pump is connected with a sand mill, and the discharge port of the sand mill is connected back to feed ports of the stirring tank A and the stirring tank B; the reciprocating piston of the pneumatic diaphragm pump is provided with a proximity switch which is electrically connected with the PLC of the sand mill. The discharge ports of the stirring tank A and the stirring tank B are respectively connected with a pneumatic diaphragm pump through a circulating discharge valve A and a circulating discharge valve B; and the discharge port of the sand mill is connected back to the stirring tank A and the stirring tank B through a feed valve A and a feed valve B respectively. The utility model discloses can replace tuning fork liquid level switch detection mode in the past completely. The applicability to different materials is wider, the cost is low, and the maintenance cost is low.

Description

Double-tank grinding system capable of realizing automatic switching by detecting operation of diaphragm pump

Technical Field

The utility model relates to an automatic switch-over that two jars ground, concretely relates to realize automatic switch-over's two jars grinding system through detecting the diaphragm pump operation.

Background

In the sand mill system of grinding, the tuning fork liquid level switch detection mode that now generally adopts has certain limitation, and when the material viscosity in the jar body was higher, tuning fork liquid level switch was dull to the detection reaction of material liquid level or even malfunctioning, if reduce material solid content and can lead to grinding efficiency to descend, the granulation cost increase for the adaptation material switch detects. The volume of the materials conveyed by each action of the diaphragm pump is the same in work, so that the flow speed and the flow of the diaphragm pump can be calculated by utilizing the characteristic, and the double-tank grinding system is controlled to automatically switch actions by a method of presetting the flow and comparing the flow speed.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the double-tank grinding system realizes automatic switching by detecting the operation of the diaphragm pump so as to solve the problems in the prior art.

The utility model discloses a double-tank grinding system for realizing automatic switching by detecting the running of a diaphragm pump, which comprises a stirring tank A and a stirring tank B which are connected in parallel, wherein the discharge ports of the stirring tank A and the stirring tank B are both connected with the same pneumatic diaphragm pump, the pneumatic diaphragm pump is connected with a sand mill, and the discharge port of the sand mill is connected back to the feed ports of the stirring tank A and the stirring tank B; the reciprocating piston of the pneumatic diaphragm pump is provided with a proximity switch which is electrically connected with the PLC controller of the sand mill. The discharge ports of the stirring tank A and the stirring tank B are respectively connected with a pneumatic diaphragm pump through a circulating discharge valve A and a circulating discharge valve B; the discharge port of the sand mill is respectively connected back to the stirring tank A and the stirring tank B through a feed valve A and a feed valve B.

Further, a discharge port of the stirring tank A is also connected with a finishing discharge valve A; the discharge port of the stirring tank B is also connected with a discharge valve B.

Furthermore, the feed inlets of the stirring tank A and the stirring tank B are connected with the same main feed valve.

The diaphragm pump drives the diaphragm to reciprocate through the reciprocating motion of the piston to change the volume of the working chamber so as to suck and discharge liquid, and the reciprocating stroke of the piston is stable, so that the volumes of the working chambers are equal theoretically. In actual work, the valve ball closing speed is changed under the influence of material viscosity or working air pressure, so that the flow rate of each delivery of the diaphragm pump is changed. According to the principle, the material quantity conveyed by the diaphragm pump every time when the diaphragm pump operates is the same under the condition that the working air pressure and the material of the diaphragm pump are relatively stable. The accumulated conveying amount of the diaphragm pump can be obtained by detecting and calculating the action times of the diaphragm pump and the conveying amount of each time through the PLC, so that the surplus material in the stirring tank can be known, and when the surplus in the stirring tank is less than the set amount, the control system can make the action of switching the material tank to perform the conversion of the material tank. The diaphragm pump has obvious acceleration because the material is managed to find time and results in the diaphragm pump to get into the air when the diaphragm pump is managed to find time at the operation in-process, also can calculate the diaphragm pump action frequency and compare with presetting the action frequency according to this characteristic automatic control system, and when the diaphragm pump actual action frequency was higher than presetting the action frequency, automatic control system also can switch the action of material jar. Through the cooperation of the two control principles, the control requirement of reserving a certain amount of materials or evacuating and switching is reliably realized.

Compared with the prior art, the utility model the beneficial effect who has is:

through detecting two jar grinding systems that diaphragm pump operation realized automatic switch-over, can replace tuning fork liquid level switch detection mode in the past completely. More extensive to different material suitability, add proximity switch's cost about 100 yuan, and the mode in the past is expensive, and two tuning fork level switches of whole set system and supporting sensing system, the cost is about 3000 yuan, consequently the utility model discloses low cost, and the maintenance cost is low.

Drawings

Fig. 1 is a schematic diagram of the present invention.

In the figure: a stirring tank A1; a stirring tank B2; a pneumatic diaphragm pump 3; a proximity switch 4; a sand mill 5; a PLC controller 6; a main feed valve 7; a feed valve A8; a feed valve B9; finishing the discharging valve A10; a circulating discharge valve A11; a circulating discharge valve B12; ending the discharge valve B13.

Detailed Description

The invention will be further described with reference to specific examples.

Firstly, disassembling and analyzing pneumatic working parts of the diaphragm pump, confirming the feasibility of diaphragm pump action detection, determining the type selection of detection components and parts and the diaphragm pump transformation scheme through multiple attempts, and providing a basis for the next flow experiment. Next, the flow rates of water conveyed by the diaphragm pumps with equal operation times under different pressures and different proportions are repeatedly compared by using a 1L testing machine, and it is found that although the diaphragm pumps work under different air pressures, the conveying amount of water is influenced to a certain extent, the overall performance is relatively stable, and the feasibility of switching the flow rates of materials conveyed by the diaphragm pumps through detection and calculation is verified. A control program of the double-tank grinding system is compiled according to an experimental result, the flow and the flow rate are calculated and compared through a self-built data model, the program is input into a 1L experimental machine for testing and modification, and the test result completely achieves the expected effect by testing the system on water and different materials provided during the customer experiment.

The concrete connection structure is as follows: as shown in FIG. 1, the double-tank grinding system capable of realizing automatic switching by detecting the operation of the diaphragm pumps in the embodiment comprises a stirring tank A1 and a stirring tank B2 which are connected in parallel, wherein discharge ports of the stirring tank A1 and the stirring tank B2 are both connected with a same pneumatic diaphragm pump 3, the pneumatic diaphragm pump 3 is connected with a sand mill 5, and a discharge port of the sand mill 5 is connected back to feed inlets of the stirring tank A1 and the stirring tank B2. Wherein, a circulating discharge valve A11 and a circulating discharge valve B12 are respectively arranged on a connecting pipeline of the discharge and port pneumatic diaphragm pumps 3 of the stirring tank A1 and the stirring tank B2; and a discharge port of the sand mill 5 is respectively provided with a feed valve A8 and a feed valve B9 on a connecting pipeline of the stirring tank A1 and the stirring tank B2. The feed inlets of the stirring tank A1 and the stirring tank B2 are also connected with the same main feed valve 7. The discharge hole of the stirring tank A1 is also connected with a finishing discharge valve A10; the discharge port of the stirring tank B2 is also connected with a finishing discharge valve B13.

The reciprocating piston of the air operated diaphragm pump 3 of the present embodiment is provided with a proximity switch 4, and the proximity switch 4 is electrically connected to a PLC controller 6 of the sand mill 5. The piston moves left and right and moves below the proximity switch 4, the system detects and counts the number of the material beating amount for one time, and whether the slurry in the tank is conveyed or not is judged according to the times because the material beating amount is fixed every time.

The working process or principle of the embodiment is as follows:

the material passes through main feed valve 7 and feed valve A8 entering agitator tank A1, and the material in the agitator tank A1 gets into sand mill 5 through circulation bleeder valve A11, pneumatic diaphragm pump 3, grinds the back of accomplishing, and the thick liquids passes through feed valve B9 and gets into agitator tank B2. When the slurry in the stirring tank A1 is completely transferred to the stirring tank B2, the control system records that the reciprocating times of the pneumatic diaphragm pump 3 just reach a set value at the moment, the slurry in the stirring tank A1 is monitored to be ground, the program starts to feed from the tank B to the tank A through the switching tank and a valve on a pipeline, and the switching is performed back and forth until the grinding effect is achieved, and the slurry is discharged from the discharge valve A10 or the discharge valve B13. The control effect of the embodiment is good and is approved.

Of course, the foregoing is merely exemplary of the present invention and should not be construed as limiting the scope of the present invention. The present invention is not limited to the above examples, and the equivalent changes and improvements made within the essential scope of the present invention should be included within the patent coverage of the present invention.

Claims

1. The utility model provides a realize automatic switch-over's two jar grinding system through detecting diaphragm pump operation which characterized in that: the device comprises a stirring tank A (1) and a stirring tank B (2) which are connected in parallel, wherein the discharge ports of the stirring tank A (1) and the stirring tank B (2) are connected with the same pneumatic diaphragm pump (3), the pneumatic diaphragm pump (3) is connected with a sand mill (5), and the discharge port of the sand mill (5) is connected back to the feed ports of the stirring tank A (1) and the stirring tank B (2); a reciprocating piston of the pneumatic diaphragm pump (3) is provided with a proximity switch (4) which is electrically connected with a PLC (6) of the sand mill (5);

the discharge ports of the stirring tank A (1) and the stirring tank B (2) are respectively connected with a pneumatic diaphragm pump (3) through a circulating discharge valve A (11) and a circulating discharge valve B (12); the discharge port of the sand mill (5) is respectively connected back to the stirring tank A (1) and the stirring tank B (2) through a feed valve A (8) and a feed valve B (9).

2. The dual tank grinding system for automatic switching by detecting operation of a diaphragm pump of claim 1, wherein: the discharge port of the stirring tank A (1) is also connected with a finishing discharge valve A (10); the discharge port of the stirring tank B (2) is also connected with a finishing discharge valve B (13).

3. The dual tank grinding system for automatic switching by detecting operation of a diaphragm pump of claim 1, wherein: the feed inlets of the stirring tank A (1) and the stirring tank B (2) are connected with the same main feed valve (7).