阅读说明：本技术 一种陶瓷过滤机自动供酸系统 (Automatic acid supply system of ceramic filter ) 是由 杨建� 郑晓聪 张晓南 马波 李申鹏 张建春 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种陶瓷过滤机自动供酸系统,其包括总储酸桶、总酸泵、分储酸桶、分酸泵、PLC系统和至少一个气动阀,总储酸桶、总酸泵、分储酸桶、分酸泵通过管路依次相连,分酸泵分别与至少一个气动阀相连,每一气动阀连接一台陶瓷过滤机,分储酸桶内设有第一液位检测装置,PLC系统用于接收第一液位检测装置检测到的液位值,并在液位值低于预设值时,开启总酸泵,直至分储酸桶内的液位达到预设值,以及用于在接收到清洗指令时,开启分酸泵以及对应的气动阀,其中,气动阀在分酸泵开启后延迟预定时间开启。本发明能够减少供酸设备、优化供酸管路,提升供酸系统的安全可靠性。(The invention discloses an automatic acid supply system of a ceramic filter, which comprises a main acid storage barrel, a main acid pump, a branch acid storage barrel, an acid dividing pump, a PLC system and at least one pneumatic valve, wherein the main acid storage barrel, the main acid pump, the branch acid storage barrel and the acid dividing pump are sequentially connected through pipelines, the acid dividing pump is respectively connected with the at least one pneumatic valve, each pneumatic valve is connected with one ceramic filter, a first liquid level detection device is arranged in the branch acid storage barrel, the PLC system is used for receiving a liquid level value detected by the first liquid level detection device, starting the main acid pump when the liquid level value is lower than a preset value until the liquid level in the branch acid storage barrel reaches the preset value, and is used for starting the acid dividing pump and the corresponding pneumatic valve when a cleaning instruction is received, wherein the pneumatic valve is started after the acid dividing pump is started for a preset time delay. The invention can reduce acid supply equipment, optimize acid supply pipelines and improve the safety and reliability of the acid supply system.)

1. The utility model provides an automatic acid feed system of ceramic filter, its characterized in that, including always storing up sour bucket, total acid pump, branch storage acid bucket, branch acid pump, PLC system and at least one pneumatic valve, always store up sour bucket, total acid pump, branch storage acid bucket, branch acid pump and pass through the pipeline and link to each other in proper order, divide the acid pump to link to each other with at least one pneumatic valve respectively, each a ceramic filter is connected to the pneumatic valve, divide and be equipped with first liquid level detection device in the storage acid bucket, the PLC system is used for receiving the liquid level value that first liquid level detection device detected to when the liquid level value is less than the default, open total acid pump, reach the default until dividing the liquid level in the storage acid bucket to and be used for when receiving washing instruction, open branch acid pump and the pneumatic valve that corresponds, wherein, the pneumatic valve delays the scheduled time and opens after branch acid pump opens.

2. The automatic acid supply system of the ceramic filter according to claim 1, wherein a main inlet valve is provided on a pipeline connecting the main acid storage tank and the main acid pump, a main outlet valve is provided on a pipeline connecting the main acid pump and the sub acid storage tank, a sub inlet valve is provided on a pipeline connecting the sub acid storage tank and the sub acid pump, and a sub outlet valve is provided on an outlet pipeline of the sub acid pump.

3. The automatic acid supply system for the ceramic filter according to claim 2, wherein the main inlet valve, the main outlet valve, the branch inlet valve and the branch outlet valve are all electrically controlled valves, and the PLC system is further configured to open the main inlet valve and the main outlet valve until a liquid level in the branch acid storage tank reaches a preset value when a liquid level value is lower than a preset value, and open the branch inlet valve and the branch outlet valve when a cleaning command is received.

4. The automatic acid supply system for ceramic filter according to claim 3, wherein the duration of the cleaning command is 35 minutes, and the pneumatic valve is turned on after a delay of 30 seconds after the acid distributing pump is turned on.

5. The automatic acid supply system of ceramic filter according to claim 1, wherein a second liquid level detection device is provided in the main acid storage tank, and the PLC system is further configured to receive a liquid level value detected by the second liquid level detection device and send an alarm signal when the liquid level value is lower than an alarm value.

6. The automatic acid supply system for ceramic filter as claimed in claim 1, wherein the partial acid storage tank and the partial acid pump are located higher than the pneumatic valve so that the acid solution reaches the pneumatic valve faster.

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to an automatic acid supply system of a ceramic filter.

Background

The slurry pipeline transportation post-treatment needs to use a dehydration system to separate slurry and water, and the water content of the dehydrated material meets the direct use or storage requirement of a user. The ceramic filter is a key device of a dehydration system, but the ceramic filter plate is easily blocked by materials, and the ceramic filter plate needs to be cleaned by nitric acid at the moment. Fig. 1 is a schematic diagram of an acid supply system in the prior art. The total acid storage barrel 1A stores nitric acid, the nitric acid is input into the sub acid storage barrel 3A through the total acid pump 2A, the terrain of the sub acid storage barrel 3A is high, the nitric acid can flow into the acid storage tanks 4A on one side of the ceramic filter through the terrain difference, each acid storage tank 4A is provided with the acid pump 5A independently, and independent acid supply of the ceramic filter is achieved.

However, the acid supply system of the existing ceramic filter has the following defects:

1. each ceramic filter is required to be independently provided with an acid pump, the number of the acid pumps is large, the investment is large, and the maintenance cost of the acid pump in the later period is high;

2. the number of acid storage tanks to be configured is large, the acid supply pipeline is long, and the risk of nitric acid leakage is high;

3. the independent acid supply requires more equipment, and the system has low safety and reliability.

Disclosure of Invention

The invention mainly solves the technical problem of providing an automatic acid supply system of a ceramic filter, which can reduce acid supply equipment, optimize an acid supply pipeline and improve the safety and reliability of the acid supply system.

In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides an automatic acid supply system of ceramic filter, including always storing up sour bucket, total acid pump, branch storage acid bucket, branch acid pump, PLC system and at least one pneumatic valve, always store up sour bucket, total acid pump, branch storage acid bucket, branch acid pump and link to each other in proper order through the pipeline, divide sour pump to link to each other with at least one pneumatic valve respectively, each a ceramic filter is connected to the pneumatic valve, divide and be equipped with first liquid level detection device in the storage acid bucket, the PLC system is used for receiving the liquid level value that first liquid level detection device detected to when the liquid level value is less than the default, open total acid pump, reach the default until dividing the liquid level in the storage acid bucket, and be used for when receiving the washing instruction, open branch acid pump and corresponding pneumatic valve, wherein, the pneumatic valve delays the scheduled time and opens after branch acid pump opens.

Preferably, a main inlet valve is arranged on a pipeline connected with the main acid storage barrel and the main acid pump, a main outlet valve is arranged on a pipeline connected with the branch acid storage barrel and the branch acid storage barrel, branch inlet valves are arranged on pipelines connected with the branch acid storage barrel and the branch acid pump, and branch outlet valves are arranged on outlet pipelines of the branch acid pump.

Preferably, the main inlet valve, the main outlet valve, the branch inlet valve and the branch outlet valve are all electric control valves, and the PLC system is further configured to open the main inlet valve and the main outlet valve until the liquid level in the branch acid storage tank reaches a preset value when the liquid level value is lower than the preset value, and open the branch inlet valve and the branch outlet valve when a cleaning instruction is received.

Preferably, the duration of the cleaning instruction is 35 minutes, and the pneumatic valve is opened after the acid distributing pump is started and delayed by 30 seconds.

Preferably, a second liquid level detection device is arranged in the main acid storage barrel, and the PLC system is further configured to receive a liquid level value detected by the second liquid level detection device and send an alarm signal when the liquid level value is lower than an alarm value.

Preferably, the topography of the acid separation and storage barrel and the acid separation pump is higher than that of the pneumatic valve, so that the acid liquor can reach the pneumatic valve more quickly.

Different from the prior art, the invention has the beneficial effects that:

1. all the ceramic filters are intensively and automatically supplied with acid, so that the condition that each ceramic filter is independently provided with an acid storage tank and an acid pump is avoided, and the large investment amount of the acid storage tank and the acid pump can be saved;

2. the side acid storage tank and the acid pump of the ceramic filter are omitted, so that an acid supply pipeline can be shortened and optimized, and the risk of nitric acid leakage is reduced;

3. and the acid supply equipment is few, the later maintenance cost can be reduced, and the safety and reliability of the acid supply system are improved.

Drawings

FIG. 1 is a schematic diagram of a prior art acid supply system.

FIG. 2 is a schematic structural diagram of an automatic acid supply system of a ceramic filter according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2, an embodiment of the invention provides an automatic acid supply system for a ceramic filter. The automatic acid supply system of the ceramic filter comprises a total acid storage barrel 1, a total acid pump 2, a branch acid storage barrel 3, a branch acid pump 4, a PLC system 5 and at least one pneumatic valve 6. The main acid storage barrel 1, the main acid pump 2, the branch acid storage barrel 3 and the branch acid pump 4 are sequentially connected through pipelines, the branch acid pump 4 is respectively connected with at least one pneumatic valve 6, and each pneumatic valve 6 is connected with one ceramic filter 7. Be equipped with first liquid level detection device 31 in the branch acid storage barrel 3, PLC system 5 is used for receiving the liquid level value that first liquid level detection device 31 detected to when the liquid level value is less than the default, open total acid pump 2, until the liquid level in branch acid storage barrel 3 reaches the default, and be used for when receiving the washing instruction, open branch acid pump 4 and corresponding pneumatic valve 6, wherein, pneumatic valve 6 delays the scheduled time after branch acid pump 4 opens and opens.

In terms of connection, when the number of the air-operated valves 6 is two or more, the acid separation pump 4 and the plurality of air-operated valves 6 are in a parallel relationship. When the pneumatic valve 6 is opened, the acid distributing pump 4 can press the nitric acid into the filter plate of the ceramic filter 7. And the ceramic filter 7 that does not need to wash then does not open corresponding pneumatic valve 6, for prior art, has cancelled the acid pump of ceramic filter 7 one side, adopts the pneumatic valve to replace, and the pneumatic valve is maintained and is changed more easily, and the cost is also lower to can reduce and supply sour equipment, optimize and supply sour pipeline, promote the fail safe nature who supplies sour system.

In this embodiment, a main inlet valve 8 is arranged on a pipeline connecting the main acid storage barrel 1 and the main acid pump 2, a main outlet valve 9 is arranged on a pipeline connecting the main acid pump 2 and the branch acid storage barrel 3, a branch inlet valve 10 is arranged on a pipeline connecting the branch acid storage barrel 3 and the branch acid pump 4, a branch outlet valve 11 is arranged on an outlet pipeline of the branch acid pump 4, and an outlet of the branch outlet valve 11 is connected with at least one pneumatic valve 6. After the main inlet valve 8, the main outlet valve 9, the branch inlet valve 10 and the branch outlet valve 11 are closed, the pipeline of the whole acid supply system can be divided into mutually independent parts, so that each part can be independently overhauled and maintained.

The main inlet valve 8, the main outlet valve 9, the branch inlet valve 10, and the branch outlet valve 11 may be manual valves or electrically controlled valves. In this embodiment, the main inlet valve 8, the main outlet valve 9, the branch inlet valve 10, and the branch outlet valve 11 are all electrically controlled valves, and the PLC system 5 is further configured to open the main inlet valve 8 and the main outlet valve 9 until the liquid level in the acid storage tank 3 reaches a preset value when the liquid level value is lower than the preset value, and open the branch inlet valve 10 and the branch outlet valve 11 when a cleaning instruction is received.

In specific application, the cleaning time of the ceramic filter 7 can be set according to actual requirements, the cleaning time of the ceramic filter 7 is the duration of a cleaning instruction, for example, 35 minutes, and the pneumatic valve 6 is started after the acid distributing pump 4 is started and delayed for 30 seconds, so that the safety can be improved. Further, the topography of the acid separation and storage barrel 3 and the acid separation pump 4 is higher than that of the pneumatic valve 6, so that the acid liquor can reach the pneumatic valve 6 more quickly. The topography of the acid separation and storage barrel 3 and the acid separation pump 4 is higher than that of the pneumatic valve 6, and acid liquor can flow in a pipeline more quickly under the free fall movement and the pressure of the acid separation pump 4.

In this embodiment, a second liquid level detection device 32 is disposed in the total acid storage barrel 1, and the PLC system 5 is further configured to receive a liquid level value detected by the second liquid level detection device 32, and send an alarm signal to indicate that the nitric acid capacity is insufficient when the liquid level value is lower than an alarm value. The total acid storage barrel 1 can be 25T barrels, and the sub acid storage barrel 3 can be 0.5T barrel.

Through the mode, the automatic acid supply system of the ceramic filter provided by the embodiment of the invention is provided with the acid distribution pump and the plurality of pneumatic valves, the pneumatic valves are correspondingly connected with the plurality of ceramic filters one by one, and the acid distribution pump can inject nitric acid into each ceramic filter, so that acid supply equipment can be reduced, an acid supply pipeline can be optimized, and the safety and reliability of the acid supply system can be improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.