Automatic filtering and regenerating device

Abstract

The utility model discloses an automatic filtering regeneration device which comprises a slurry tank, a stock solution tank and a filtrate tank, the slurry tank, the stock solution tank and the filtrate tank are respectively communicated with a filter press through pipelines, and the filter press respectively forms a loop with the slurry tank and the stock solution tank through pipelines. The utility model provides a full-automatic filtering and washing device with few technological processes, and the labor intensity is greatly reduced because the plate frame does not need to be loosened for unloading in the normal production process.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to an automatic filtering and regenerating device. Background Art

[0002] In the chemical production process, filtering devices are commonly used in production processes. How to reduce the process flow and operation intensity to filter and separate materials and recycle solids after sufficient washing is a problem that the industry needs to solve. There are many types of filtering devices. Generally, the cleaning and regeneration of filtering devices are mostly implemented in manual mode. This process is labor-intensive. In the current environment where labor costs are constantly rising, especially when employees pursue a good working environment and low labor intensity, the automatic regeneration of filtering devices has great research value. Summary of the invention

[0003] The purpose of the utility model is to provide an automatic filtering and regenerating device in order to make up for the shortcomings of the prior art.

[0004] The technical solution of this utility model:

[0005] An automatic filtering and regeneration device comprises a slurry tank, a raw liquid tank and a filtrate tank, wherein the slurry tank, the raw liquid tank and the filtrate tank are connected to a filter press through pipelines respectively, and the filter press forms a loop with the slurry tank and the raw liquid tank respectively through pipelines.

[0006] Preferably, the slurry tank is connected to the filter press through a pipeline via a slurry pump, and the pipeline is provided with a slurry pump feed regulating valve, a filter press feed slurry regulating valve and a slurry feed flow meter;

[0007] The stock liquid tank is connected to the filter press through a pipeline via a stock liquid pump, and the pipeline is provided with a filter press inlet stock liquid regulating valve and a stock liquid feed flow meter;

[0008] The filter press is also provided with a washing water pipeline, on which a feed washing water regulating valve and a filtrate washing water flow meter are provided.

[0009] Preferably, the discharge port of the filter press is connected to the slurry tank, the raw liquid tank and the filtrate tank respectively through pipelines.

[0010] Further preferably, a reflux regulating valve and a pipeline sight glass are provided on the pipeline connecting the filter press discharge port and the slurry tank, a raw liquid discharge regulating valve is provided on the pipeline connecting the filter press discharge port and the raw liquid tank, and a filtrate washing water regulating valve is provided on the pipeline connecting the filter press discharge port and the filtrate tank.

[0011] Preferably, the filter press is further provided with a slag hopper, which is connected to the slurry tank through a pipeline.

[0012] The utility model has the following beneficial effects:

[0013] 1. This device provides a fully automatic filtering and washing device with few process steps.

[0014] 2. The utility model of this application provides an automatic filtering and regeneration device which performs comprehensive, efficient and continuous filtering of the slurry, maintains automatic washing and can automatically start the production process during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] In the figure: a slurry tank, b raw liquid tank, c filter press, d filtrate tank, e slag slurry tank, F1 slurry feed flowmeter, F2 raw liquid feed flowmeter, F3 slurry washing water flowmeter, F4 filtrate washing water flowmeter, g1 slurry pump feed regulating valve, g2 filter press feed slurry regulating valve, g3 filter press raw liquid inlet regulating valve, g4 feed washing water regulating valve, h1 filtrate outlet regulating valve, h2 raw liquid outlet regulating valve, h3 reflux regulating valve, h4 filtrate washing water regulating valve, i slag hopper, a1 slurry pump, b1 raw liquid pump, P1 feed pressure, T pipeline sight glass. DETAILED DESCRIPTION

[0017] The following will be combined with the specific embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] An automatic filtering and regeneration device comprises a slurry tank a, a raw liquid tank b, and a filtrate tank d, wherein the slurry tank a, the raw liquid tank b, and the filtrate tank d are respectively connected to a filter press c through pipelines, and the filter press h forms a loop with the slurry tank a and the raw liquid tank b through pipelines.

[0020] Preferably, the slurry tank a is connected to the filter press c through a pipeline via a slurry pump a1, and the pipeline is provided with a slurry pump feed regulating valve g1, a filter press feed slurry regulating valve g2 and a slurry feed flowmeter F1;

[0021] The stock liquid tank b is connected to the filter press c through a pipeline via a stock liquid pump b1, and the pipeline is provided with a filter press inlet stock liquid regulating valve g3 and a stock liquid feed flow meter F2;

[0022] The filter press c is also provided with a washing water pipeline, on which a feed washing water regulating valve g4 and a filtrate washing water flow meter F4 are provided.

[0023] Preferably, the discharge port of the filter press c is connected to the slurry tank a, the raw liquid tank b and the filtrate tank d respectively through pipelines.

[0024] Further preferably, a reflux regulating valve h3 and a pipeline sight glass T are provided on the pipeline connecting the discharge port of the filter press c and the slurry tank a, a raw liquid discharge regulating valve h2 is provided on the pipeline connecting the discharge port of the filter press c and the raw liquid tank b, and a filtrate washing water regulating valve h4 is provided on the pipeline connecting the discharge port of the filter press c and the filtrate tank d.

[0025] Preferably, the filter press c is further provided with a slag hopper i, which is connected to the slurry tank e through a pipeline.

[0026] How to use:

[0027] Click to enter the start-up phase. At this time, (filter press feed slurry regulating valve and reflux regulating valve) are opened, other regulating valves are closed, and all manual valves are opened. After the start-up status is checked and there is no problem, one-click start-up;

[0028] The slurry pump feed regulating valve is opened, the slurry pump frequency is increased to the specified value, the slurry in the slurry tank is transported to the filter press through the slurry pump, and then the reflux flows back to the slurry tank through the reflux regulating valve;

[0029] After the T pipeline sight glass automatically detects that the reflux is clear, the slurry pump frequency is reduced to 15%, the filtrate washing water regulating valve is opened, and after the accumulated value of the filtrate washing water flow reaches a set value, the reflux regulating valve is closed, the filtrate washing water regulating valve is closed, and the filtrate outlet regulating valve is opened;

[0030] The slurry pump frequency is increased to the specified value, and the filtrate enters the production filtrate. When the slurry feed flow rate is lower than the set value or the feed pressure is higher than the set value, the filter cake in the filter press is filled, and the slurry pump frequency is automatically reduced to 0% after a certain delay. The filtrate washing water regulating valve is opened. After the accumulated value of the filtrate washing water flow rate reaches the set value, the filtrate regulating valve is closed, the filtrate washing water regulating valve is closed (the filtrate tank feed pipe is washed at this time), and the raw liquid regulating valve is opened;

[0031] Then the slurry pump feed regulating valve is closed, the feed washing water regulating valve is opened, and the washing water washes the filter press feed slurry regulating valve and pipeline. After the accumulated flow rate of the slurry washing water reaches a set value, the filter press feed slurry regulating valve is closed, and the feed washing water regulating valve is closed;

[0032] Open the slurry pump feed regulating valve, and open the feed washing water regulating valve; at this time, the washing water washes the slurry pump inlet and outlet pipes, and after the accumulated flow of the slurry washing water reaches a fixed value, close the slurry pump feed regulating valve, and close the feed washing water regulating valve;

[0033] After the filter press inlet and outlet pipes are washed and qualified, the filter press inlet stock liquid regulating valve is opened, the stock liquid pump is added to the specified frequency, the high-temperature stock liquid enters the filter press, and flows back to the stock liquid tank again. After the filter press is circulated and washed with the high-temperature stock liquid, the crystals and a small amount of extremely small solid particle impurities in the filter press are washed to the stock liquid tank, and most of the solid insoluble impurities remain in the filter press; after sufficient washing time, most of the crystals in the plate and frame chamber of the filter press are dissolved, and the regeneration process is completed at this time;

[0034] The filter press is filtered again according to the above steps and then regenerated again until a certain number of times; there are too many solid insoluble impurities in the filter press, and the filter press is loosened at this time, and the solid impurities in the plate and frame are manually washed into the slag bucket and then enter the slurry tank for external slurry transport.

[0035] The above are only relatively preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic filtering and regeneration device, comprising a slurry tank (a), a raw liquid tank (b), and a filtrate tank (d), characterized in that: The slurry tank (a), the raw liquid tank (b), and the filtrate tank (d) are respectively connected to the filter press (c) through pipelines, and the filter press (c) forms a loop with the slurry tank (a) and the raw liquid tank (b) through pipelines.

2. The automatic filtering and regeneration device according to claim 1, characterized in that: The slurry tank (a) is connected to the filter press (c) through a pipeline via a slurry pump (a1), and the pipeline is provided with a slurry pump feed regulating valve (g1), a filter press feed slurry regulating valve (g2) and a slurry feed flow meter (F1); The stock liquid tank (b) is connected to the filter press (c) through a pipeline via a stock liquid pump (b1), and the pipeline is provided with a filter press inlet stock liquid regulating valve (g3) and a stock liquid feed flow meter (F2); The filter press (c) is also provided with a washing water pipeline, on which a feed washing water regulating valve (g4) and a filtrate washing water flow meter (F4) are provided.

3. The automatic filtering and regeneration device according to claim 1, characterized in that: The outlet of the filter press (c) is connected to the slurry tank (a), the raw liquid tank (b) and the filtrate tank (d) respectively through pipelines.

4. The automatic filtering and regeneration device according to claim 3, characterized in that: A reflux regulating valve (h3) and a pipeline sight glass (T) are provided on the pipeline connecting the discharge port of the filter press (c) and the slurry tank (a), a raw liquid discharge regulating valve (h2) is provided on the pipeline connecting the discharge port of the filter press (c) and the raw liquid tank (b), and a filtrate washing water regulating valve (h4) is provided on the pipeline connecting the discharge port of the filter press (c) and the filtrate tank (d).

5. The automatic filtering and regeneration device according to claim 1, characterized in that: The filter press (c) is also provided with a slag hopper (i), which is connected to the slag trough (e) through a pipeline.

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