Chlorine-containing waste sulfuric acid regeneration device

Abstract

The utility model relates to the technical field of waste acid recycling, in particular to a chlorine-containing waste sulfuric acid regeneration device which comprises a first chloroethylene clean sulfuric acid storage tank, a chlorine dry sulfuric acid storage tank, an unqualified sulfuric acid storage tank, a first sulfuric acid storage tank, a second sulfuric acid storage tank, a second chloroethylene clean sulfuric acid storage tank and a cracking furnace. The chloroethylene clean sulfuric acid storage tank and the chlorine dry sulfuric acid storage tank are respectively communicated with the first sulfuric acid storage tank and the second sulfuric acid storage tank through sulfuric acid pipelines, and a jumper pipeline is arranged between the first sulfuric acid storage tank and the second sulfuric acid storage tank. The device is reasonable and compact in structure and convenient to use, sulfuric acid generated by cleaning vinyl chloride acetylene and sulfuric acid generated by electrolyzing and drying chlorine are mixed according to a certain proportion and then are conveyed to the cracking furnace through the sulfuric acid conveying pump to produce sulfur dioxide, and chloride ions are completely removed by the scrubber; the problems that chlorine-containing sulfuric acid is difficult to transport and chlorine volatilized in the using process seriously pollutes the environment are solved, and the method has the advantages of being safe, labor-saving, simple, convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of waste acid recovery and utilization, and is a chlorine-containing waste sulfuric acid regeneration device. Background Art

[0002] At present, most of the domestic chlorine-dried sulfuric acid storage tanks use the sulfuric acid drying method. This process method consumes about 12kg to 16kg of 98% concentrated sulfuric acid per ton of caustic soda. By the end of 2022, the total domestic caustic soda production will be 39.81 million tons. According to the actual production of caustic soda in 2022, about 637,000 tons to 910,000 tons of waste sulfuric acid (about 75% to 80%) will be produced as a by-product each year. At present, chlor-alkali enterprises mainly deal with chlorine-dried waste sulfuric acid by selling it to fertilizer companies for fertilizer production or neutralizing it with calcium carbide mud to make gypsum for sale. Since about 0.2% of chlorine is dissolved in chlorine-dried waste acid, it is more corrosive than finished sulfuric acid. The chlorine volatilized during transportation and use seriously pollutes the environment.

[0003] Therefore, it is very necessary to study and invent a chlorine-containing waste sulfuric acid regeneration device. Summary of the invention

[0004] The utility model provides a chlorine-containing waste sulfuric acid regeneration device, which overcomes the shortcomings of the prior art and can effectively solve the problems of difficult transportation and treatment and environmental pollution of the existing chlorine-containing sulfuric acid.

[0005] The technical scheme of the utility model is realized by the following measures: a chlorine-containing waste sulfuric acid regeneration device comprises a first vinyl chloride clean sulfuric acid storage tank, a chlorine gas drying sulfuric acid storage tank, an unqualified sulfuric acid storage tank, a first sulfuric acid storage tank, a second sulfuric acid storage tank, a second vinyl chloride clean sulfuric acid storage tank, and a cracking furnace, a first sulfuric acid delivery pipeline is fixedly connected between the outlet of the first vinyl chloride clean sulfuric acid storage tank and the first feed inlet at the top of the first sulfuric acid storage tank, a sixth sulfuric acid delivery pipeline is fixedly connected between the outlet of the second vinyl chloride clean sulfuric acid storage tank and the first feed inlet at the top of the second sulfuric acid storage tank, a third sulfuric acid delivery pipeline is fixedly connected between the outlet of the unqualified sulfuric acid storage tank and the first sulfuric acid delivery pipeline, a fourth sulfuric acid delivery pipeline is fixedly connected between the outlet of the chlorine gas drying sulfuric acid storage tank and the second feed inlet at the top of the first sulfuric acid storage tank, a seventh sulfuric acid delivery pipeline is fixedly connected between the lower outlet of the first sulfuric acid storage tank and the cracking furnace, and an eighth sulfuric acid delivery pipeline is fixedly connected between the lower outlet of the second sulfuric acid storage tank and the seventh sulfuric acid delivery pipeline.

[0006] The following are further optimizations and / or improvements to the above utility model technical solution:

[0007] The seventh sulfuric acid delivery pipeline between the first sulfuric acid storage tank and the eighth sulfuric acid delivery pipeline is sequentially installed with a first filter and a first sulfuric acid delivery pump according to the material flow direction, and the eighth sulfuric acid delivery pipeline is sequentially installed with a second filter and a second sulfuric acid delivery pump according to the logistics flow direction.

[0008] A first reflux pipeline is fixedly connected between the seventh sulfuric acid delivery pipeline between the first sulfuric acid delivery pump and the eighth sulfuric acid delivery pipeline and the third feed port at the top of the first sulfuric acid storage tank, and a second reflux pipeline is fixedly connected between the first reflux pipeline and the second feed port at the top of the second sulfuric acid storage tank.

[0009] The third feed inlet on the top of the first sulfuric acid storage tank is fixedly connected with a first nitrogen pipeline, and a second nitrogen pipeline is fixedly connected between the first nitrogen pipeline and the third feed inlet on the top of the second sulfuric acid storage tank.

[0010] A first jumper pipeline is fixedly connected to the seventh sulfuric acid delivery pipeline between the eighth sulfuric acid delivery pipeline and the cracking furnace, a second jumper pipeline is fixedly connected between the seventh sulfuric acid delivery pipeline between the first sulfuric acid storage tank and the first filter and the eighth sulfuric acid delivery pipeline between the second sulfuric acid storage tank and the second filter, and a first jumper valve is fixedly arranged on the second jumper pipeline.

[0011] The seventh sulfuric acid delivery pipeline between the inlet and outlet of the above-mentioned first jumper pipeline is fixedly connected with the tenth sulfuric acid delivery pipeline, and the third filter is fixedly installed on the tenth sulfuric acid delivery pipeline. The tenth sulfuric acid delivery pipeline between the inlet and outlet of the third filter is fixedly connected with the ninth sulfuric acid delivery pipeline, and the fourth filter is fixedly installed on the ninth sulfuric acid delivery pipeline. The seventh sulfuric acid delivery pipeline between the inlet and outlet of the tenth sulfuric acid delivery pipeline has a flow regulating valve and a fifth filter fixedly installed in sequence according to the material flow direction.

[0012] A second sulfuric acid delivery pipeline is fixedly connected between the first sulfuric acid delivery pipeline and the fourth feed inlet on the top of the second sulfuric acid storage tank, and a fifth sulfuric acid delivery pipeline is fixedly connected between the fourth sulfuric acid delivery pipeline and the fifth feed inlet on the top of the second sulfuric acid storage tank.

[0013] A remote flow meter is fixedly installed on the seventh sulfuric acid delivery pipeline between the above-mentioned first jumper pipeline and the cracking furnace, a first remote liquid level meter is fixedly installed on the first sulfuric acid storage tank, a second remote liquid level meter is fixedly installed on the second sulfuric acid storage tank, and an interlock is set between the remote flow meter and the flow regulating valve.

[0014] A gas phase balance pipeline is fixedly connected between the upper port of the first sulfuric acid storage tank and the upper port of the second sulfuric acid storage tank, and an on-site pressure gauge and a remote pressure gauge are fixedly installed on the gas phase balance pipeline.

[0015] The device also includes a DCS controller, and the first sulfuric acid delivery pump, the second sulfuric acid delivery pump, the flow regulating valve, the remote flow meter, the remote pressure gauge, the first remote liquid level meter, and the second remote liquid level meter are all electrically connected to the DCS controller.

[0016] The utility model has a reasonable and compact structure and is easy to use. After sulfuric acid produced by vinyl chloride acetylene purification and sulfuric acid obtained by drying electrolytic chlorine are mixed in a certain proportion, the chloride ion content of waste sulfuric acid is reduced, and the waste sulfuric acid is delivered to a cracking furnace through a sulfuric acid delivery pump for cracking and combustion to produce sulfur dioxide, and then the chloride ions are completely removed by a scrubber, thereby solving the problems of difficult transportation of chlorine-containing sulfuric acid and serious environmental pollution caused by chlorine gas volatilized during use. The utility model has the characteristics of safety, labor saving, simplicity and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a schematic diagram of the process flow of the utility model.

[0018] The codes in the attached drawings are: 1 is the first vinyl chloride clean sulfuric acid storage tank, 2 is the chlorine gas dry sulfuric acid storage tank, 3 is the unqualified sulfuric acid storage tank, 4 is the first sulfuric acid storage tank, 5 is the second sulfuric acid storage tank, 6 is the second vinyl chloride clean sulfuric acid storage tank, 7 is the cracking furnace, 8 is the first sulfuric acid delivery pump, 9 is the second sulfuric acid delivery pump, 10 is the first filter, 11 is the second filter, 12 is the third filter, 13 is the fourth filter, 14 is the fifth filter, 15 is the first sulfuric acid delivery pipeline, 16 is the second sulfuric acid delivery pipeline, 17 is the third sulfuric acid delivery pipeline, 18 is the fourth sulfuric acid delivery pipeline, 19 is the fifth sulfuric acid delivery pipeline. delivery pipeline, 20 is the sixth sulfuric acid delivery pipeline, 21 is the first nitrogen pipeline, 22 is the second nitrogen pipeline, 23 is the gas phase balance pipeline, 24 is the seventh sulfuric acid delivery pipeline, 25 is the eighth sulfuric acid delivery pipeline, 26 is the first reflux pipeline, 27 is the second reflux pipeline, 28 is the ninth sulfuric acid delivery pipeline, 29 is the tenth sulfuric acid delivery pipeline, 30 is the first jumper pipeline, 31 is the second jumper pipeline, 32 is the first jumper valve, 33 is the flow regulating valve, 34 is the remote flow meter, 35 is the on-site pressure gauge, 36 is the remote pressure gauge, 37 is the first remote liquid level gauge, and 38 is the second remote liquid level gauge. DETAILED DESCRIPTION

[0019] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0020] In the present invention, unless otherwise specified, the equipment and devices used are all the equipment and devices known and used in the art.

[0021] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1The layout is described in detail, such as the positional relationship of front, back, top, bottom, left, right, etc., which is based on the attached manual. Figure 1 It is determined by the layout direction.

[0022] The present invention is further described below in conjunction with the embodiments and drawings:

[0023] Embodiment 1: As attached Figure 1 As shown, the chlorine-containing waste sulfuric acid regeneration device includes a first vinyl chloride clean sulfuric acid storage tank 1, a chlorine gas dry sulfuric acid storage tank 2, an unqualified sulfuric acid storage tank 3, a first sulfuric acid storage tank 4, a second sulfuric acid storage tank 5, a second vinyl chloride clean sulfuric acid storage tank 6, and a cracking furnace 7. A first sulfuric acid delivery pipeline 15 is fixedly connected between the outlet of the first vinyl chloride clean sulfuric acid storage tank 1 and the first feed inlet at the top of the first sulfuric acid storage tank 4, a sixth sulfuric acid delivery pipeline 20 is fixedly connected between the outlet of the second vinyl chloride clean sulfuric acid storage tank 6 and the first feed inlet at the top of the second sulfuric acid storage tank 5, a third sulfuric acid delivery pipeline 17 is fixedly connected between the outlet of the unqualified sulfuric acid storage tank 3 and the first sulfuric acid delivery pipeline 15, a fourth sulfuric acid delivery pipeline 18 is fixedly connected between the outlet of the chlorine gas dry sulfuric acid storage tank 2 and the second feed inlet at the top of the first sulfuric acid storage tank 4, a seventh sulfuric acid delivery pipeline 24 is fixedly connected between the lower outlet of the first sulfuric acid storage tank 4 and the cracking furnace 7, and an eighth sulfuric acid delivery pipeline 25 is fixedly connected between the lower outlet of the second sulfuric acid storage tank 5 and the seventh sulfuric acid delivery pipeline 24.

[0024] According to needs, the sulfuric acid produced by vinyl chloride and acetylene purification is mixed with electrolytic drying of chlorine and sulfuric acid in a certain proportion to obtain waste sulfuric acid with low chloride ion content. The waste sulfuric acid is sent to the cracking furnace for cracking and combustion, and then the chloride ions are removed by a scrubber to regenerate concentrated sulfuric acid with a sulfuric acid content of more than 98%, which is recycled for vinyl chloride and acetylene purification or electrolytic chlorine drying.

[0025] The above-mentioned chlorine-containing waste sulfuric acid regeneration device can be further optimized and / or improved according to actual needs:

[0026] Embodiment 2: It is different from Embodiment 1 in that: Figure 1 As shown, the seventh sulfuric acid delivery pipeline 24 between the first sulfuric acid storage tank 4 and the eighth sulfuric acid delivery pipeline 25 is sequentially installed with a first filter 10 and a first sulfuric acid delivery pump 8 according to the material flow direction, and the eighth sulfuric acid delivery pipeline 25 is sequentially installed with a second filter 11 and a second sulfuric acid delivery pump 9 according to the logistics flow direction.

[0027] Embodiment 3: It differs from Embodiment 1 to Embodiment 2 in that: Figure 1As shown, a first reflux pipeline 26 is fixedly connected between the seventh sulfuric acid delivery pipeline 24 between the first sulfuric acid delivery pump 8 and the eighth sulfuric acid delivery pipeline 25 and the third feed port at the top of the first sulfuric acid storage tank 4, and a second reflux pipeline 27 is fixedly connected between the first reflux pipeline 26 and the second feed port at the top of the second sulfuric acid storage tank 5.

[0028] Embodiment 4: It differs from Embodiments 1 to 3 in that: Figure 1 As shown, the third feed inlet on the top of the first sulfuric acid storage tank 4 is fixedly connected to a first nitrogen pipeline 21 , and a second nitrogen pipeline 22 is fixedly connected between the first nitrogen pipeline 21 and the third feed inlet on the top of the second sulfuric acid storage tank 5 .

[0029] As needed, nitrogen is used to protect the sulfuric acid storage tank to prevent the escape of acetylene in sulfuric acid after the vinyl chloride acetylene is cleaned and cause combustion and explosion.

[0030] Embodiment 5: It differs from Embodiments 1 to 4 in that: Figure 1 As shown, a first jumper line 30 is fixedly connected to the seventh sulfuric acid delivery pipeline 24 between the eighth sulfuric acid delivery pipeline 25 and the cracking furnace 7, a second jumper line 31 is fixedly connected between the seventh sulfuric acid delivery pipeline 24 between the first sulfuric acid storage tank 4 and the first filter 10 and the eighth sulfuric acid delivery pipeline 25 between the second sulfuric acid storage tank 5 and the second filter 11, and a first jumper valve 32 is fixedly provided on the second jumper line 31.

[0031] Embodiment 6: It differs from Embodiments 1 to 5 in that: Figure 1 As shown, the seventh sulfuric acid delivery pipeline 24 between the inlet and outlet of the first jumper pipeline 30 is fixedly connected with the tenth sulfuric acid delivery pipeline 29, the third filter 12 is fixedly installed on the tenth sulfuric acid delivery pipeline 29, the ninth sulfuric acid delivery pipeline 28 is fixedly connected with the tenth sulfuric acid delivery pipeline 29 between the inlet and outlet of the third filter 12, the fourth filter 13 is fixedly installed on the ninth sulfuric acid delivery pipeline 28, and the flow regulating valve 33 and the fifth filter 14 are fixedly installed on the seventh sulfuric acid delivery pipeline 24 between the inlet and outlet of the tenth sulfuric acid delivery pipeline 29 in sequence according to the material flow direction.

[0032] According to needs, sulfuric acid contains crystallized salt after vinyl chloride and acetylene are purified. Multiple sets of filters and sulfuric acid jumper pipes are set up to facilitate timely switching and cleaning.

[0033] Embodiment 7: It differs from Embodiments 1 to 6 in that: Figure 1 As shown, a second sulfuric acid delivery pipeline 16 is fixedly connected between the first sulfuric acid delivery pipeline 15 and the fourth feed port on the top of the second sulfuric acid storage tank 5 , and a fifth sulfuric acid delivery pipeline 19 is fixedly connected between the fourth sulfuric acid delivery pipeline 18 and the fifth feed port on the top of the second sulfuric acid storage tank 5 .

[0034] As needed, the first vinyl chloride purified sulfuric acid storage tank 1 and the chlorine dry sulfuric acid storage tank 2 are respectively connected with the first sulfuric acid storage tank 4 and the second sulfuric acid storage tank 5 through sulfuric acid pipelines, so as to facilitate timely switching.

[0035] Embodiment 8: It differs from Embodiments 1 to 7 in that: Figure 1 As shown, a remote flow meter 34 is fixedly installed on the seventh sulfuric acid delivery pipeline 24 between the first jumper pipeline 30 and the cracking furnace 7, a first remote liquid level meter 37 is fixedly installed on the first sulfuric acid storage tank 4, a second remote liquid level meter 38 is fixedly installed on the second sulfuric acid storage tank 5, and an interlock is set between the remote flow meter 34 and the flow regulating valve 33.

[0036] Embodiment 9: It differs from Embodiments 1 to 8 in that: Figure 1 As shown, a gas phase balance pipeline 23 is fixedly connected between the upper port of the first sulfuric acid storage tank 4 and the upper port of the second sulfuric acid storage tank 5 , and a field pressure gauge 35 and a remote pressure gauge 36 are fixedly installed on the gas phase balance pipeline 23 .

[0037] Embodiment 10: It differs from Embodiments 1 to 9 in that: Figure 1 As shown, the device also includes a DCS controller, and the first sulfuric acid delivery pump 8, the second sulfuric acid delivery pump 9, the flow regulating valve 33, the remote flow meter 34, the remote pressure gauge 36, the first remote liquid level gauge 37, and the second remote liquid level gauge 38 are all electrically connected to the DCS controller.

[0038] As required, the mixing ratio of sulfuric acid produced by vinyl chloride acetylene purification and electrolytic dry chlorine sulfuric acid is determined by the liquid level changes of the first remote liquid level meter 37 and the second remote liquid level meter 38.

[0039] As required, the pipelines and equipment of the chlorine-containing waste sulfuric acid regeneration device can also be equipped with conventional valves, thermometers and pressure gauges known in the art according to production needs.

[0040] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

[0041] The use process of the embodiment of the utility model is as follows: first, electrolytically dried chlorine sulfuric acid is pumped into the first sulfuric acid storage tank 4 and the second sulfuric acid storage tank 5 respectively as needed. When the electrolytically dried chlorine sulfuric acid is fed into the first sulfuric acid storage tank 4, the second sulfuric acid storage tank 5 is used as a spare storage tank; then, according to the receiving liquid level, vinyl chloride clean sulfuric acid of the corresponding proportional liquid level is pumped in, and the two waste sulfuric acids are fully mixed to obtain chlorine-containing waste sulfuric acid with a chloride ion content of less than 0.001%; ​​finally, the chlorine-containing waste sulfuric acid is transported to the cracking furnace 7 through the first sulfuric acid delivery pump 8 (when the first sulfuric acid delivery pump 8 fails, the second sulfuric acid delivery pump 9 is started by opening the first cross-over valve 32) for reaction, and concentrated sulfuric acid with a sulfuric acid content of more than 98% is obtained through subsequent regeneration operations after cracking and combustion.

Claims

1. A chlorine-containing waste sulfuric acid regeneration device, characterized in that The invention comprises a first vinyl chloride purified sulfuric acid storage tank, a chlorine dried sulfuric acid storage tank, an unqualified sulfuric acid storage tank, a first sulfuric acid storage tank, a second sulfuric acid storage tank, a second vinyl chloride purified sulfuric acid storage tank, and a cracking furnace. A first sulfuric acid delivery pipeline is fixedly connected between the outlet of the first vinyl chloride purified sulfuric acid storage tank and a first feed inlet on the top of the first sulfuric acid storage tank, a sixth sulfuric acid delivery pipeline is fixedly connected between the outlet of the second vinyl chloride purified sulfuric acid storage tank and the first feed inlet on the top of the second sulfuric acid storage tank, a third sulfuric acid delivery pipeline is fixedly connected between the outlet of the unqualified sulfuric acid storage tank and the first sulfuric acid delivery pipeline, a fourth sulfuric acid delivery pipeline is fixedly connected between the outlet of the chlorine dried sulfuric acid storage tank and the second feed inlet on the top of the first sulfuric acid storage tank, a seventh sulfuric acid delivery pipeline is fixedly connected between the lower outlet of the first sulfuric acid storage tank and the cracking furnace, and an eighth sulfuric acid delivery pipeline is fixedly connected between the lower outlet of the second sulfuric acid storage tank and the seventh sulfuric acid delivery pipeline.

2. The chlorine-containing waste sulfuric acid regeneration device according to claim 1, characterized in that The first filter and the first sulfuric acid delivery pump are installed on the seventh sulfuric acid delivery pipeline between the first sulfuric acid storage tank and the eighth sulfuric acid delivery pipeline in sequence according to the material flow direction, and the second filter and the second sulfuric acid delivery pump are installed on the eighth sulfuric acid delivery pipeline in sequence according to the material flow direction.

3. The chlorine-containing waste sulfuric acid regeneration device according to claim 2, characterized in that A first reflux pipeline is fixedly connected between the seventh sulfuric acid delivery pipeline between the first sulfuric acid delivery pump and the eighth sulfuric acid delivery pipeline and the third feed port on the top of the first sulfuric acid storage tank, and a second reflux pipeline is fixedly connected between the first reflux pipeline and the second feed port on the top of the second sulfuric acid storage tank.

4. The chlorine-containing waste sulfuric acid regeneration device according to claim 1, 2 or 3, characterized in that The third feed inlet on the top of the first sulfuric acid storage tank is fixedly connected with a first nitrogen pipeline, and the first nitrogen pipeline is fixedly connected with the third feed inlet on the top of the second sulfuric acid storage tank with a second nitrogen pipeline.

5. The chlorine-containing waste sulfuric acid regeneration device according to claim 4, characterized in that A first jumper pipeline is fixedly connected to the seventh sulfuric acid delivery pipeline between the eighth sulfuric acid delivery pipeline and the cracking furnace, a second jumper pipeline is fixedly connected between the seventh sulfuric acid delivery pipeline between the first sulfuric acid storage tank and the first filter and the eighth sulfuric acid delivery pipeline between the second sulfuric acid storage tank and the second filter, and a first jumper valve is fixedly provided on the second jumper pipeline.

6. The chlorine-containing waste sulfuric acid regeneration device according to claim 5, characterized in that The seventh sulfuric acid delivery pipeline between the inlet and outlet of the first jumper pipeline is fixedly connected with the tenth sulfuric acid delivery pipeline, and the third filter is fixedly installed on the tenth sulfuric acid delivery pipeline; the tenth sulfuric acid delivery pipeline between the inlet and outlet of the third filter is fixedly connected with the ninth sulfuric acid delivery pipeline, and the fourth filter is fixedly installed on the ninth sulfuric acid delivery pipeline; the seventh sulfuric acid delivery pipeline between the inlet and outlet of the tenth sulfuric acid delivery pipeline has a flow regulating valve and a fifth filter fixedly installed in sequence according to the material flow direction.

7. The chlorine-containing waste sulfuric acid regeneration device according to claim 1, 2, 3, 5 or 6, characterized in that A second sulfuric acid delivery pipeline is fixedly connected between the first sulfuric acid delivery pipeline and the fourth feed inlet on the top of the second sulfuric acid storage tank, and a fifth sulfuric acid delivery pipeline is fixedly connected between the fourth sulfuric acid delivery pipeline and the fifth feed inlet on the top of the second sulfuric acid storage tank.

8. The chlorine-containing waste sulfuric acid regeneration device according to claim 7, characterized in that A remote flow meter is fixedly installed on the seventh sulfuric acid delivery pipeline between the first jumper pipeline and the cracking furnace, a first remote liquid level meter is fixedly installed on the first sulfuric acid storage tank, a second remote liquid level meter is fixedly installed on the second sulfuric acid storage tank, and an interlock is set between the remote flow meter and the flow regulating valve.

9. The chlorine-containing waste sulfuric acid regeneration device according to claim 8, characterized in that A gas phase balance pipeline is fixedly connected between the upper port of the first sulfuric acid storage tank and the upper port of the second sulfuric acid storage tank, and an on-site pressure gauge and a remote pressure gauge are fixedly installed on the gas phase balance pipeline.

10. A chlorine-containing waste sulfuric acid regeneration device according to claim 9, characterized in that It also includes a DCS controller, and the first sulfuric acid delivery pump, the second sulfuric acid delivery pump, the flow regulating valve, the remote flow meter, the remote pressure gauge, the first remote liquid level meter, and the second remote liquid level meter are all electrically connected to the DCS controller.

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