CN211078462U - Device for providing heat source for waste acid treatment - Google Patents
Device for providing heat source for waste acid treatment Download PDFInfo
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- CN211078462U CN211078462U CN201921212601.3U CN201921212601U CN211078462U CN 211078462 U CN211078462 U CN 211078462U CN 201921212601 U CN201921212601 U CN 201921212601U CN 211078462 U CN211078462 U CN 211078462U
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Abstract
The utility model provides a provide heat source device for spent acid treatment, includes base, diluted acid head tank, concentrated acid head tank, vacuum condenser, concentrated acid storage tank, acid water storage tank, high-silicon alloy evaporimeter and variable frequency control power, and its main points are that the fixed electric heater that is provided with on the base, electric heater links to each other with intermediate frequency control power. A packing ring is arranged in the high-silicon alloy evaporator, and the upper end of the high-silicon alloy evaporator is sequentially connected with a washing tower and a vacuum condenser. In addition, the high-silicon alloy evaporator is also connected with a preheater, a cooler and a concentrated acid storage tank in sequence. The concentrated acid storage tank is connected with a concentrated acid pump and a concentrated acid head tank in sequence. The acid water storage tank is connected with a vacuum circulating water pump and a vacuum condenser in sequence. The concentrated acid head tank and the dilute acid head tank are sequentially connected with a flowmeter, a preheater and a high-silicon alloy evaporator. The utility model discloses can replace traditional vacuum concentration, need not high-pressure steam, operating temperature can reach below 600 degrees, and the sour various concentrations below can being less than 98% of concentration of product. One-time investment is about 1/5 to 1/10 of vacuum concentration of dilute sulfuric acid.
Description
Technical Field
The invention relates to the field of waste acid electric heating distillation concentration of waste dilute sulfuric acid, nitric acid, hydrochloric acid and the like, in particular to a device for providing heat source for waste acid treatment.
Background
Many processes in chemical industry can generate dilute waste sulfuric acid, nitric acid, hydrochloric acid and other waste acids, if the waste acids are not polluted seriously, a pot type sulfuric acid concentration device or a dilute sulfuric acid vacuum concentration device can be directly used for concentration distillation treatment, the former is used for waste sulfuric acid with higher concentration (more than 62%), and the concentration of the generated sulfuric acid is also higher (between 93% and 98%); the latter is used for waste dilute sulfuric acid with lower concentration (less than 62%), and the produced sulfuric acid is also lower in concentration (less than 88%). The waste acid which is polluted seriously can be pretreated to remove organic matters or salt, and then the concentrated distillation treatment and the recovery are carried out by the device.
Disclosure of Invention
The invention aims to solve the problems and provides a heat source device for waste acid treatment, which can replace a pot-type sulfuric acid concentration device and a dilute sulfuric acid vacuum concentration device to carry out concentration distillation treatment when the device is used for treating waste acid, and adopts a medium-frequency control power supply and an electric heater to heat the device.
The technical scheme is as follows:
the utility model provides a provide heat source device for spent acid treatment, includes base, diluted acid head tank, concentrated acid head tank, vacuum condenser, concentrated acid storage tank, acid water storage tank, high-silicon alloy evaporimeter and variable frequency control power, and its main points are that the fixed electric heater that is provided with on the base, electric heater links to each other with intermediate frequency control power. The high-silicon alloy evaporator is arranged in the electric heater, the packing ring is arranged in the high-silicon alloy evaporator, the upper end of the high-silicon alloy evaporator is connected with the bottom of the washing tower through a pipeline, and the upper end of the washing tower is connected with the vacuum condenser through a pipeline. The high-silicon alloy evaporator is connected with the preheater through a pipeline, the preheater is connected with the cooler through a pipeline, and the cooler is connected with the concentrated acid storage tank through a pipeline. The concentrated acid storage tank is connected with a concentrated acid pump through a pipeline, and the concentrated acid pump is connected with the concentrated acid head tank through a pipeline. The acid water storage tank is connected with the vacuum circulating water pump through a pipeline, and the vacuum circulating water pump is connected with the vacuum condenser through a pipeline. The concentrated acid head tank and the dilute acid head tank are connected with a flowmeter through pipelines, the flowmeter is connected with a preheater through a pipeline, and the preheater is connected with the upper part of the high-silicon alloy evaporator through a pipeline.
Acid-resistant daub and insulating daub are respectively arranged between the electric heater and the high-silicon alloy evaporator.
The invention has the advantages that the invention mainly solves the following problems: 1. the waste acid treatment heated part can not be heated by electricity, and the heating of the high-silicon alloy evaporator and the packing ring by adopting the invention has lower cost than a resistance and infrared electric heating mode, thereby being more in line with the requirement of environmental protection. 2. The traditional vacuum concentration treatment of waste dilute sulfuric acid with lower concentration only uses enamel and tantalum materials as heating evaporators, and the invention can replace the traditional vacuum concentration. The traditional dilute sulfuric acid vacuum concentration needs high-pressure steam, an enamel kettle and a noble metal tantalum material as an evaporator, the highest working temperature is less than 200 ℃, and the concentration of produced acid is less than 88%. The present invention has no need of high pressure steam, the working temperature can be up to below 600 deg.C, and the concentration of acid product can be less than 98%. One-time investment is about 1/5 to 1/10 of vacuum concentration of dilute sulfuric acid.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The utility model provides a provide heat source device for waste acid treatment, includes base 16, diluted acid head tank 1, concentrated acid head tank 3, vacuum condenser 12, concentrated acid storage tank 10, acid water storage tank 14, high-silicon alloy evaporimeter 5 and variable frequency control power 13, its main points are that fixed electric heater 7 that is provided with on the base 16, and electric heater 7 links to each other with variable frequency control power 13. The high-silicon alloy evaporator 5 is arranged in the electric heater 7, and acid-resistant daub and insulating daub are respectively arranged between the electric heater 7 and the high-silicon alloy evaporator 5. A packing ring 6 is arranged in the high-silicon alloy evaporator 5, the upper end of the high-silicon alloy evaporator 5 is connected with the bottom of the washing tower 4 through a pipeline, and the upper end of the washing tower 4 is connected with a vacuum condenser 12 through a pipeline. The high-silicon alloy evaporator 5 is connected with the preheater 8 through a pipeline, the preheater 8 is connected with the cooler 9 through a pipeline, and the cooler 9 is connected with the concentrated acid storage tank 10 through a pipeline. The concentrated acid storage tank 10 is connected with a concentrated acid pump 11 through a pipeline, and the concentrated acid pump 11 is connected with the concentrated acid head tank 3 through a pipeline. The acid water storage tank 14 is connected with a vacuum circulating water pump 15 through a pipeline, and the vacuum circulating water pump 15 is connected with the vacuum condenser 12 through a pipeline. The concentrated acid head tank 3 and the dilute acid head tank 1 are connected with the flowmeter 2 through pipelines, the flowmeter 2 is connected with the preheater 8 through a pipeline, and the preheater 8 is connected with the upper part of the high-silicon alloy evaporator 5 through a pipeline.
The invention utilizes the change of power supply frequency to supply power to the electric heater through the electricity and magnetism conversion, and is generally called an electric heating system (hereinafter referred to as an electric heating system). The heated high-silicon alloy evaporator 5 and the packing ring 6 heat the waste acid until the set temperature is reached. The electric heater 7 is subjected to insulation protection and acid-resistant protection, insulation cement (red mud) and acid-resistant cement are coated outside the electric heater, bakelite is used as a framework, an electric heating system is cooled by adopting a water cooling method, a gap of 80mm is formed between the high-silicon alloy evaporator 5 and the electric heater 7, and the electric heater 7 and the inner pot body 6 are both seated on a foundation 16.
Claims (2)
1. A device for providing heat source for waste acid treatment comprises a base (16), a dilute acid head tank (1), a concentrated acid head tank (3), a vacuum condenser (12), a concentrated acid storage tank (10), an acid water storage tank (14), a high-silicon alloy evaporator (5) and a variable frequency control power supply (13), and is characterized in that an electric heater (7) is fixedly arranged on the base (16), and the electric heater (7) is connected with the variable frequency control power supply (13); the high-silicon alloy evaporator (5) is arranged in the electric heater (7), a packing ring (6) is arranged in the high-silicon alloy evaporator (5), the upper end of the high-silicon alloy evaporator (5) is connected with the bottom of the washing tower (4) through a pipeline, and the upper end of the washing tower (4) is connected with the vacuum condenser (12) through a pipeline; the high-silicon alloy evaporator (5) is connected with the preheater (8) through a pipeline, the preheater (8) is connected with the cooler (9) through a pipeline, and the cooler (9) is connected with the concentrated acid storage tank (10) through a pipeline; the concentrated acid storage tank (10) is connected with a concentrated acid pump (11) through a pipeline, and the concentrated acid pump (11) is connected with the concentrated acid head tank (3) through a pipeline; the acid water storage tank (14) is connected with a vacuum circulating water pump (15) through a pipeline, and the vacuum circulating water pump (15) is connected with a vacuum condenser (12) through a pipeline; concentrated acid elevated tank (3) and dilute acid elevated tank (1) pass through the tube coupling with flowmeter (2), flowmeter (2) pass through the tube coupling with preheater (8), preheater (8) pass through the tube coupling with high-silicon alloy evaporator (5) upper portion.
2. A device for providing a heat source for waste acid treatment as claimed in claim 1, wherein acid-proof mastic and insulating mastic are provided between the electric heater (7) and the high-silicon alloy evaporator (5), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212601.3U CN211078462U (en) | 2019-07-30 | 2019-07-30 | Device for providing heat source for waste acid treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212601.3U CN211078462U (en) | 2019-07-30 | 2019-07-30 | Device for providing heat source for waste acid treatment |
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| Publication Number | Publication Date |
|---|---|
| CN211078462U true CN211078462U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921212601.3U Active CN211078462U (en) | 2019-07-30 | 2019-07-30 | Device for providing heat source for waste acid treatment |
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| CN (1) | CN211078462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355371A (en) * | 2018-03-28 | 2018-08-03 | 辽阳市东陵化工设备厂 | It is a kind of to provide heat power supply device to spent acid processing with intermediate frequency power supply |
| CN110371930A (en) * | 2019-07-30 | 2019-10-25 | 辽阳市东陵化工设备厂 | One kind providing heat power supply device to waste acid treatment |
-
2019
- 2019-07-30 CN CN201921212601.3U patent/CN211078462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355371A (en) * | 2018-03-28 | 2018-08-03 | 辽阳市东陵化工设备厂 | It is a kind of to provide heat power supply device to spent acid processing with intermediate frequency power supply |
| CN110371930A (en) * | 2019-07-30 | 2019-10-25 | 辽阳市东陵化工设备厂 | One kind providing heat power supply device to waste acid treatment |
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