CN218521068U - Preparation is drying device for new sulphuric acid - Google Patents

Abstract

The utility model discloses a prepare new drying device for sulphuric acid relates to new sulphuric acid preparation field, which comprises a housin, be provided with clean room, drying chamber, catalysis room, inhale tower and two in the casing and inhale the tower, be provided with the electric demister in the drying chamber, bottom in the catalysis room is provided with first automatically controlled valve and second automatically controlled valve, the one end of first automatically controlled valve runs through and gets into in one tower, and the one end of second automatically controlled valve runs through into in two suction towers, one tower and two suction tower side one side all are provided with the second pipeline. The utility model discloses a dry through letting in 93% concentrated sulfuric acid, the flue gas gets into the catalytic chamber and follows vanadium catalyst contact oxidation conversion sulfur trioxide, sends into and absorbs sulfur trioxide wherein through 98% concentrated sulfuric acid in one tower, and remaining a small amount of sulfur dioxide flue gas passes through the circulating pipe and emits into catalysis indoor catalysis, absorbs in the two absorption towers of low concentration sulfur trioxide after the secondary catalysis row for its drying efficiency guarantees that it absorbs the acid string volume.

Description

Preparation is drying device for new sulphuric acid

Technical Field

The utility model relates to a new sulphuric acid preparation field specifically is a prepare new drying device for sulphuric acid.

Background

The sulfuric acid is the most active binary inorganic strong acid, can react with most metals, has strong water absorption at high concentration, can be used as a dehydrating agent, and can be used for carbonizing carbohydrate-containing substances such as wood, paper, cotton-linen fabrics, biological skin and meat, and the like, is an important industrial raw material, and can be used for manufacturing fertilizers, medicines, explosives, pigments, detergents, storage batteries and the like.

In the existing process of preparing and drying the new sulfuric acid, the new sulfuric acid is generally directly put into a drying oven for drying, and the new sulfuric acid can be taken out after waiting for a period of time in an electric heating mode.

Because above-mentioned structure is behind the drying process, it takes the water yield more when taking out, leads to drying effect not good, and the absorption concentration is on the low side, and too extravagant manpower and materials are unfavorable for the preparation of new sulphuric acid simultaneously, reduce its self practicality.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a prepare new drying device for sulphuric acid to solve above-mentioned structure behind drying process, it is more to take the water yield when taking out, leads to drying effect not good, and absorption concentration is on the low side, and too extravagant manpower and materials are unfavorable for the preparation of new sulphuric acid simultaneously, reduce the technical problem of its self practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prepare new drying device for sulphuric acid, includes the casing, be provided with clean room, drying chamber, catalysis room, inhale tower and two in the casing and inhale the tower, be provided with the electric demister in the drying chamber, and be located its one side and be provided with first pipeline, bottom in the catalysis room is provided with first automatically controlled valve and second automatically controlled valve, the one end of first automatically controlled valve is run through and is got into in one tower, and the one end of second automatically controlled valve runs through into in two inhale towers, one tower and two inhale tower side one side and all be provided with the second pipeline.

Through adopting above-mentioned technical scheme, remove dust to it through the cooperation of clean room and drying chamber, and dry through letting in 93% concentrated sulfuric acid, subsequently get into in the catalysis chamber, with vanadium catalyst contact oxidation conversion sulfur trioxide, and then send into and absorb sulfur trioxide wherein through 98% concentrated sulfuric acid in the tower of inhaling, remaining sulfur dioxide flue gas that contains a small amount is discharged into in the catalysis chamber through its circulating pipe and is catalyzed, low concentration sulfur trioxide after the secondary catalysis is discharged and is absorbed in the tower of inhaling once more, accelerate its drying efficiency, guarantee that it absorbs the acid content and reduce the waste of manpower and materials.

The utility model discloses further set up to, the top in the dust removal chamber is provided with cyclone and electrostatic precipitator.

Through adopting above-mentioned technical scheme, through cyclone and electrostatic precipitator cooperation, clear away the impurity in the high temperature flue gas.

The utility model discloses further set up to, one side of clean room is provided with the extraction pump, and the extraction pump runs through into being connected with in the clean room through the outlet pipe and spouts the dish.

By adopting the technical scheme, the dilute acid is pumped by the extraction pump and sprayed into the dust removing chamber, so that the dilute acid can be conveniently washed to remove impurities in the gas.

The utility model discloses further set up to, be provided with array shower nozzle on the spraying plate.

By adopting the technical scheme, the spraying area of the dilute acid is convenient to increase through the spray head.

The utility model discloses further set up to, be provided with heat exchanger and main blower in the catalysis room.

By adopting the technical scheme, the primary conversion process is carried out after the pressure of the main blower is increased and the temperature of the heat exchanger is increased, and the conversion of sulfur trioxide is carried out by contacting with a vanadium catalyst and oxidizing.

The utility model discloses further set up to, the bottom of clean room and drying chamber all is provided with automatically controlled gas vent.

Through adopting above-mentioned technical scheme, be convenient for discharge different chambeies with inside flue gas.

The utility model is further arranged in that a circulating pipe is arranged between the catalyzing chamber and the absorption tower.

By adopting the technical scheme, a small amount of residual sulfur dioxide cold flue gas in the absorption tower can be discharged into the catalytic chamber conveniently through the circulating pipe.

To sum up, the utility model discloses mainly have following beneficial effect:

the utility model discloses a dust removal chamber removes dust to the high temperature flue gas that lets in, let in the dilute acid washing through the extraction pump and remove the impurity in the gas, and let in 93% concentrated sulfuric acid through first pipeline and carry out the drying, get into the catalysis after in, carry out the primary conversion process, with vanadium catalyst contact oxidation conversion sulfur trioxide, and then send into and absorb sulfur trioxide wherein through 98% concentrated sulfuric acid in one tower, remaining containing a small amount of sulfur dioxide flue gas continues to emit into the catalysis indoor through its circulating pipe and catalyzes, low concentration sulfur trioxide after the secondary catalysis is discharged and is absorbed through 98% concentrated sulfuric acid in two suction tower, accelerate its drying efficiency, guarantee its absorption string acid quantity and reduce the waste of manpower and materials.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a housing; 2. a dust chamber; 3. a drying chamber; 4. a catalyst chamber; 5. a first absorption tower; 6. a second absorption tower; 7. a first electrically controlled valve; 8. a heat exchanger; 9. a first conduit; 10. an air inlet pipe; 11. a cyclone dust collector; 12. an electric dust collector; 13. a pump; 14. a water outlet pipe; 15. spraying a disc; 16. an electric demister; 17. a primary blower; 18. a circulation pipe; 19. a second conduit; 20. a second electrically controlled valve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following describes an embodiment of the present invention according to its overall structure.

A drying device for preparing new sulfuric acid, as shown in figure 1, the drying device comprises a shell 1, a dust removal chamber 2, a drying chamber 3, a catalysis chamber 4, a first absorption tower 5 and a second absorption tower 6 are arranged in the shell 1, high-temperature flue gas is cooled by a waste heat boiler system and then is discharged inwards through an air inlet pipe 10, a cyclone dust collector 11 and an electric dust collector 12 are arranged at the top in the dust removal chamber 2, the cyclone dust collector 11 is matched with the electric dust collector 12 to remove impurities in the high-temperature flue gas, an electric demister 16 is arranged in the drying chamber 3, clean sulfur dioxide flue gas is obtained through the electric demister 16, a first pipeline 9 is arranged on one side of the first pipeline 9, 93% of concentrated sulfuric acid is introduced into the drying chamber 3 through the first pipeline 9 to dry the high-temperature flue gas, the high-temperature flue gas is dried and then enters the catalysis chamber 4, a first conversion process (namely, a second conversion process and a third conversion process) is carried out, a first electric control valve 7 and a second electric control valve 20 are arranged at the bottom in the catalysis chamber 4, one end of the first electric control valve 7 penetrates into the first absorption tower 5 to facilitate the second absorption tower and the second absorption tower 19 to absorb more sulfur trioxide in the first absorption tower 6, the second absorption tower 6 and the second absorption tower 6 are all related to absorb more sulfur trioxide conversion tower, the first absorption tower, the second absorption tower 6 and the second absorption tower 6 absorption tower, the second absorption tower and the third conversion tower 6 absorption tower.

On the basis of the structure, in the embodiment, one side of the dust chamber 2 is provided with the extraction pump 13, the extraction pump 13 penetrates through the dust chamber 2 through the water outlet pipe 14 and is connected with the spray disc 15, and dilute acid is conveniently sprayed inside the spray disc 15 to wash and remove impurities in the gas.

On the basis of the structure, in the embodiment, the heat exchanger 8 and the main blower 17 are arranged in the catalytic chamber 4, and the primary conversion process is carried out after the pressure of the main blower 17 is increased and the temperature of the heat exchanger 8 is increased, so that the catalytic chamber is in contact with the vanadium catalyst to convert sulfur trioxide through oxidation.

On the basis of the structure, in the embodiment, the bottom parts of the dust removing chamber 2 and the drying chamber 3 are both provided with the electric control exhaust port, and the inside flue gas is conveniently exhausted to the next chamber through the electric control exhaust port.

On the basis of the structure, in the embodiment, the circulating pipe 18 is arranged between the catalytic chamber 4 and the absorption tower 5, and the circulating pipe 18 is convenient for discharging a small amount of cold flue gas of sulfur dioxide left in the absorption tower 5 into the catalytic chamber 4 for conversion.

When the device is used, high-temperature flue gas is discharged into a dust removal chamber 2 through an air inlet pipe 10, most of smoke dust is removed under the matching of a cyclone dust collector 11 and an electric dust collector 12, dilute acid is introduced through the action of an extraction pump 13 and a spray disc 15 to wash and remove impurities in the gas, acid mist is removed through an electric demister to obtain clean sulfur dioxide flue gas, 93% concentrated sulfuric acid is introduced through a first pipeline 9 to dry, then the clean sulfur dioxide flue gas is discharged into a catalytic chamber 4, a primary conversion process is carried out after the pressure of a main blower 17 and the temperature of a heat exchanger 8 is raised, the clean sulfur dioxide flue gas is subjected to contact oxidation with vanadium catalyst to convert sulfur trioxide, then the clean sulfur dioxide flue gas is introduced into a first absorption tower 5 through a first electric control valve 7, 98% concentrated sulfuric acid is introduced into the first absorption tower 5 through a second pipeline 19 to absorb the sulfur trioxide, a small amount of sulfur dioxide contained in the first absorption tower 5 is discharged into a catalytic chamber 4 through a circulating pipe 18 to carry out secondary conversion, then the clean sulfur dioxide flue gas is discharged into a second absorption tower 6 through a second electric control valve 20 to reach the standard, and 98% of the flue gas contained in the second absorption tower 6 is discharged after the trace sulfur dioxide is washed and discharged.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims (7)

1. The utility model provides a prepare new drying device for sulphuric acid, includes casing (1), be provided with clean room (2), drying chamber (3), catalytic chamber (4), one inhale tower (5) and two inhale tower (6) in casing (1), its characterized in that: the drying chamber (3) is internally provided with an electric demister (16), a first pipeline (9) is arranged on one side of the drying chamber, a first electric control valve (7) and a second electric control valve (20) are arranged at the bottom of the catalysis chamber (4), one end of the first electric control valve (7) penetrates into the first absorption tower (5), one end of the second electric control valve (20) penetrates into the second absorption tower (6), and second pipelines (19) are arranged on one sides of the first absorption tower (5) and the second absorption tower (6).

2. The drying apparatus for preparing fresh sulfuric acid according to claim 1, wherein: and a cyclone dust collector (11) and an electric dust collector (12) are arranged at the top in the dust removing chamber (2).

3. The drying device for preparing fresh sulfuric acid according to claim 1, wherein: one side of clean room (2) is provided with extraction pump (13), and extraction pump (13) run through into clean room (2) in-connection through outlet pipe (14) and spout dish (15).

4. The drying apparatus for producing fresh sulfuric acid according to claim 3, wherein: and a plurality of groups of spray heads are arranged on the spray plate (15).

5. The drying apparatus for preparing fresh sulfuric acid according to claim 1, wherein: and a heat exchanger (8) and a main blower (17) are arranged in the catalytic chamber (4).

6. The drying apparatus for preparing fresh sulfuric acid according to claim 1, wherein: and the bottoms of the dust removing chamber (2) and the drying chamber (3) are provided with electric control exhaust ports.

7. The drying apparatus for preparing fresh sulfuric acid according to claim 1, wherein: a circulating pipe (18) is arranged between the catalytic chamber (4) and one absorption tower (5).

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