Waste acid recovery device

Abstract

The utility model discloses a waste acid recovery and utilization device, which belongs to the technical field of waste acid treatment, and comprises a recovery acid storage tank and an acid recovery tank, wherein the acid recovery tank comprises a liquid inlet cavity, a liquid outlet cavity, a liquid inlet, a liquid outlet and a plurality of filter elements, wherein the liquid outlet cavity is separated from the liquid inlet cavity and is located above the liquid inlet cavity, the liquid inlet is communicated with the liquid inlet cavity, the liquid outlet is communicated with the liquid outlet cavity, the lower ends of the plurality of filter elements are vertically inserted into the liquid inlet cavity and communicated with the liquid inlet cavity, the upper ends of the plurality of filter elements are arranged in the liquid outlet cavity, the waste acid flows into the liquid inlet cavity through the liquid inlet, flows into the liquid outlet cavity after being filtered upwards through the filter element, and the filtered recovery acid flows into the recovery acid storage tank through the liquid outlet; the utility model allows the waste acid to flow into the liquid inlet cavity through the liquid inlet, flows into the liquid outlet cavity after being filtered upwards through the filter element, and the filtered recovery acid automatically flows into the recovery acid storage tank through the liquid outlet for standby; the waste acid can be recovered after filtering and treating solid impurities, and the waste acid treatment amount is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste acid treatment, in particular to a waste acid recovery and utilization device. Background Art

[0002] Electroplated diamond wire has been widely developed and applied due to its advantages of low loss, high efficiency and high precision in the processing of brittle and hard materials. The electroplated diamond wire saw mainly uses high-purity quartz sand as the sand. At present, the mixed acid used for purifying high-purity quartz sand in the industry's reactor is mainly acid-base neutralization and acid leaching, and then high-purity quartz sand is obtained through flotation and drying. Due to the high cost of waste acid treatment and the environmental risks, there is no recovery plan for the waste acid generated, and continuous recycling cannot be achieved.

[0003] Therefore, it is necessary to filter the waste acid and recycle it. In view of this, it is necessary to propose a new technical solution to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a waste acid recovery and utilization device to solve the problems of the waste acid produced in the prior art being unable to be continuously recovered and utilized and the high cost of waste acid treatment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] A waste acid recovery and utilization device comprises a recovery acid storage tank and an acid recovery tank arranged above the recovery acid storage tank, the acid recovery tank comprises a liquid inlet cavity, a liquid outlet cavity, a liquid inlet, a liquid outlet and a plurality of filters, the liquid outlet cavity is separated from the liquid inlet cavity and is located above the liquid inlet cavity, the liquid inlet is communicated with the liquid inlet cavity, the liquid outlet is communicated with the liquid outlet cavity, the lower ends of the plurality of filters are vertically inserted into the liquid inlet cavity and communicated with the liquid inlet cavity, the upper ends of the plurality of filters are placed in the liquid outlet cavity, the waste acid flows into the liquid inlet cavity through the liquid inlet, flows into the liquid outlet cavity after being filtered upward through the filter, and the filtered recovery acid flows into the recovery acid storage tank through the liquid outlet.

[0007] The utility model allows waste acid to flow into a liquid inlet cavity through a liquid inlet, and then flows into a liquid outlet cavity after being filtered upwards through a filter element; the filtered recovered acid automatically flows into a recovered acid storage tank through a liquid outlet for standby use; the recovered acid in the recovered acid storage tank is transferred to an acidification workshop according to a prescribed ratio when it is used next time; the waste acid can be recovered after filtering and treating solid impurities, thereby greatly reducing the amount of waste acid treated.

[0008] As a further improvement, the filter element includes a liquid guide tube, a filter element and a plurality of water outlet holes, the filter element is installed in the liquid guide tube, and the water outlet holes are provided on the liquid guide tube located in the liquid outlet cavity. The water outlet holes are provided above the liquid inlet, and the waste acid flows upward along the liquid guide tube and is filtered by the filter element. In the process of the water flowing upward, the solid impurities contained in the waste acid can be deposited at the lower end of the liquid guide tube, so that the missed solid impurities are prevented from flowing out from the water outlet holes, and the filtering effect can be improved.

[0009] As a further improvement, the filter element is a PP filter element or a CTO filter element. Preferably, the filter element is a PP filter element.

[0010] As a further improvement, a limit plate is provided in the liquid outlet cavity, and a plurality of limit holes are formed on the limit plate, through which the liquid guide tube passes. Since there are a large number of filter elements, the limit plate and the limit holes can prevent the liquid guide tube from deflecting.

[0011] As a further improvement, the number of the liquid inlets is multiple, and the number of the liquid outlet is one. A large number of liquid inlets can disperse the amount of liquid inlet and improve the filtering effect.

[0012] As a further improvement, a liquid level sensor is provided on the recovered acid storage tank, and the liquid level sensor is connected to an alarm.

[0013] As a further improvement, a water outlet is provided below the recovered acid storage tank.

[0014] As a further improvement, an overflow trough is provided above the acid recovery tank, the overflow trough is arranged in parallel with the acid recovery tank, a connecting pipe is provided between the liquid outlet and the acid recovery tank, and part or all of the connecting pipe is placed in the overflow trough.

[0015] Compared with the prior art, the utility model brings the following technical effects:

[0016] The utility model allows waste acid to flow into a liquid inlet cavity through a liquid inlet, and then flows into a liquid outlet cavity after being filtered upwards through a filter element; the filtered recovered acid automatically flows into a recovered acid storage tank through a liquid outlet for standby use; the recovered acid in the recovered acid storage tank is transferred to an acidification workshop according to a prescribed ratio when it is used next time; the waste acid can be recovered after filtering and treating solid impurities, thereby greatly reducing the amount of waste acid treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The schematic diagram of the structure of the waste acid recovery and utilization device is shown;

[0019] Figure 2 Another structural schematic diagram of the waste acid recovery and utilization device is shown;

[0020] Figure 3 Shows Figure 1 A cross-sectional view of a waste acid recovery and utilization device;

[0021] Figure 4 Shows Figure 1 Another angled cross-sectional view of the waste acid recovery and utilization device;

[0022] Figure 5 A cross-sectional view of another embodiment of a waste acid recovery and utilization device is shown.

[0023] Description of main component symbols:

[0024] 1-recovery acid storage tank; 11-water outlet; 2-acid recovery tank; 21-liquid inlet chamber; 22-liquid outlet chamber; 23-liquid inlet; 24-liquid outlet; 25-filter element; 251-liquid guide tube; 252-water outlet hole; 26-limiting plate; 261-limiting hole; 27-flow limiting element; 28-cover body; 3-overflow trough; 4-connecting pipe. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] A waste acid recovery and utilization device comprises a recovery acid storage tank and an acid recovery tank arranged above the recovery acid storage tank, the acid recovery tank comprises a liquid inlet cavity, a liquid outlet cavity, a liquid inlet, a liquid outlet and a plurality of filters, the liquid outlet cavity is separated from the liquid inlet cavity and is located above the liquid inlet cavity, the liquid inlet is communicated with the liquid inlet cavity, the liquid outlet is communicated with the liquid outlet cavity, the lower ends of the plurality of filters are vertically inserted into the liquid inlet cavity and communicated with the liquid inlet cavity, the upper ends of the plurality of filters are placed in the liquid outlet cavity, the waste acid flows into the liquid inlet cavity through the liquid inlet, flows into the liquid outlet cavity after being filtered upward through the filter, and the filtered recovery acid flows into the recovery acid storage tank through the liquid outlet.

[0027] The utility model allows waste acid to flow into a liquid inlet cavity through a liquid inlet, and then flows into a liquid outlet cavity after being filtered upwards through a filter element; the filtered recovered acid automatically flows into a recovered acid storage tank through a liquid outlet for standby use; the recovered acid in the recovered acid storage tank is transferred to an acidification workshop according to a prescribed ratio when it is used next time; the waste acid can be recovered after filtering and treating solid impurities, thereby greatly reducing the amount of waste acid treated.

[0028] Example

[0029] See also Figures 1 to 4 The utility model provides a waste acid recovery and utilization device, comprising a recovery acid storage tank 1 and an acid recovery tank 2 arranged above the recovery acid storage tank 1, the acid recovery tank 2 comprising a liquid inlet chamber 21, a liquid outlet chamber 22, a liquid inlet 23, a liquid outlet 24 and a plurality of filter elements 25, the liquid outlet chamber 22 is separated from the liquid inlet chamber 21 and is located above the liquid inlet chamber 21, the liquid inlet 23 is communicated with the liquid inlet chamber 21, the liquid outlet 24 is communicated with the liquid outlet chamber 22, the lower ends of the plurality of filter elements 25 are vertically inserted into the liquid inlet chamber 21 and are communicated with the liquid inlet chamber 21, the upper ends of the plurality of filter elements 25 are placed in the liquid outlet chamber 22, the waste acid flows into the liquid inlet chamber 21 through the liquid inlet 23, flows into the liquid outlet chamber 22 after being filtered upward through the filter element 25, and the filtered recovery acid flows into the recovery acid storage tank 1 through the liquid outlet 23. Preferably, the liquid inlet 23 is connected to a booster pump, and more preferably, the booster pump is an acid- and alkali-resistant booster pump. The filtering effect of the filter element 25 can be improved by boosting the pressure with the booster pump.

[0030] More specifically, see Figure 3 and Figure 4The filter element 25 includes a liquid guide tube 251, a filter element (not shown) and a plurality of water outlet holes 252. The filter element is installed in the liquid guide tube 251, and the water outlet holes 252 are provided on the liquid guide tube 251 located in the liquid outlet cavity 22. The water outlet holes 252 are arranged above the liquid inlet 23. The waste acid flows upward along the liquid guide tube 251 and is filtered by the filter element. In the process of the water flowing upward, the solid impurities contained in the waste acid can be deposited at the lower end of the liquid guide tube 251, so as to avoid the missed solid impurities from flowing out of the water outlet holes 252, thereby improving the filtering effect. The filter element is a PP filter element or a CTO filter element. Preferably, the filter element is a PP filter element with a filtering accuracy of 0.2-1um, which can filter microcrystalline particles.

[0031] In another implementation of this embodiment, see Figure 5 The liquid inlet cavity 21 is a liquid inlet tube, which is connected to the liquid guide tube 251. In this embodiment, the number of liquid inlet tubes used is 4, and the number may be greater or less than 4. Each liquid inlet tube is connected to 10 liquid guide tubes 251, and the number is only for example.

[0032] More specifically, see Figure 3 and Figure 4 A limiting plate 26 is provided in the liquid outlet cavity 22, and a plurality of limiting holes 261 are provided on the limiting plate 26. The liquid guide tube 251 passes through the limiting holes 261, wherein the number of the limiting holes 261 is the same as the number of the filter elements 25. Since the number of the filter elements 25 is relatively large, the limiting plate 26 and the limiting holes 261 can prevent the liquid guide tube 251 from being offset.

[0033] In another implementation of this embodiment, see Figure 5 The liquid guide tube 251 is provided with a flow limiting member 27, which is sleeved on the liquid guide tube 251. The gap between the flow limiting member 27 and the liquid guide tube 251 can guide the recovered acid flowing out of the water outlet hole 252 downward to the bottom of the liquid outlet chamber 22. A sealing cover 28 is also provided at the upper end of the liquid outlet chamber 22, and the sealing cover 28 seals the liquid outlet chamber 22.

[0034] More specifically, see Figures 1 to 4 , the number of liquid inlets 23 is multiple, and the number of liquid outlets 24 is one. The large number of liquid inlets 23 can disperse the amount of liquid inlet and improve the filtering effect. Wherein, a liquid level sensor is provided on the recovery acid storage tank 1, and the liquid level sensor is connected to an alarm. A water outlet 11 is provided below the recovery acid storage tank 1, and the water outlet 11 is connected to the pre-plating tank to be pickled or pickled.

[0035] More specifically, see Figures 1 to 5An overflow trough 3 is provided above the acid recovery tank 1, and the overflow trough 3 is arranged in parallel with the acid recovery tank 2. A connecting pipe 4 is provided between the liquid outlet 24 and the acid recovery tank 1, and a part or all of the connecting pipe 4 is placed in the overflow trough 3. In this embodiment, part of the connecting pipe is placed in the overflow trough 3, which can avoid leakage and overflow during the drainage process of the connecting pipe 4, and the overflowed part of the recovered acid can flow into the acid recovery tank 1.

[0036] The utility model pressurizes the waste acid through an acid-base resistant pump, flows into the liquid inlet 23 into the liquid inlet cavity 21, and flows into the liquid outlet cavity 22 after being filtered upward through the filter element 25. The filtered recovered acid automatically flows into the recovered acid storage tank 1 through the liquid outlet 23 for standby use. The recovered acid in the recovered acid storage tank 1 is transferred to the acidification workshop according to the prescribed ratio when it is used next time; the waste acid can be recovered after filtering and treating the solid impurities, thereby greatly reducing the amount of waste acid treatment.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A waste acid recovery and utilization device, characterized in that: The invention comprises a recovery acid storage tank and an acid recovery tank arranged above the recovery acid storage tank, wherein the acid recovery tank comprises a liquid inlet cavity, a liquid outlet cavity, a liquid inlet port, a liquid outlet port and a plurality of filter elements, wherein the liquid outlet cavity is separated from the liquid inlet cavity and is arranged above the liquid inlet cavity, the liquid inlet port is communicated with the liquid inlet cavity, the liquid outlet port is communicated with the liquid outlet cavity, the lower ends of the plurality of filter elements are vertically inserted into the liquid inlet cavity and communicated with the liquid inlet cavity, the upper ends of the plurality of filter elements are placed in the liquid outlet cavity, the waste acid flows into the liquid inlet cavity through the liquid inlet port, flows into the liquid outlet cavity after being filtered upward through the filter element, and the filtered recovery acid flows into the recovery acid storage tank through the liquid outlet port.

2. The waste acid recovery and utilization device according to claim 1, characterized in that: The filter element comprises a liquid guiding tube, a filter core and a plurality of water outlet holes. The filter core is installed in the liquid guiding tube, and the water outlet holes are arranged on the liquid guiding tube located in the liquid outlet cavity.

3. The waste acid recovery and utilization device according to claim 2, characterized in that: The filter element is a PP filter element or a CTO filter element.

4. The waste acid recovery and utilization device according to claim 2, characterized in that: A limiting plate is arranged in the liquid outlet cavity, a plurality of limiting holes are opened on the limiting plate, and the liquid guide tube passes through the limiting holes.

5. The waste acid recovery and utilization device according to claim 1, characterized in that: The number of the liquid inlets is multiple, and the number of the liquid outlet is one.

6. The waste acid recovery and utilization device according to claim 1, characterized in that: The recovered acid storage tank is provided with a liquid level sensor, and the liquid level sensor is connected to an alarm.

7. The waste acid recovery and utilization device according to claim 1, characterized in that: A water outlet is arranged below the recovered acid storage tank.

8. The waste acid recovery and utilization device according to claim 1, characterized in that: An overflow trough is arranged above the acid recovery tank, and the overflow trough is arranged in parallel with the acid recovery tank. A connecting pipe is arranged between the liquid outlet and the acid recovery tank, and the connecting pipe is placed in the overflow trough.

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