A sodium bisulfite solution preparation device

Abstract

The utility model discloses a sodium bisulfite solution preparation device, comprising an incinerator, a mixing feeder is arranged on one side of the incinerator, an air jet port of the mixing feeder extends into the furnace body of the incinerator, the outer edge of the mixing feeder is fixed on the furnace wall of the incinerator by a plurality of screws, and a plug-in heat exchange structure is arranged on the furnace wall of the incinerator; the utility model relates to the technical field of chemical devices, the sodium bisulfite solution preparation device utilizes a heat exchange plate connected with a heat exchange slot of the furnace wall of the incinerator by plug-in to absorb the heat generated by the incinerator, and utilizes a circulation pipeline to complete the circulation, the heat exchange structure adopts a plug-in plate heat exchanger, a circulating water channel is arranged inside the plug-in plate heat exchanger, the heat is fully exchanged and absorbed, and the structure is simple and easy to maintain, and the influence on the integrity of the furnace wall of the incinerator is small.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a sodium bisulfite solution preparation device. Background Art

[0002] Sodium bisulfite is a fine chemical with high added value. It is widely used as a bleaching agent for cotton fabrics and organic matter, as a reducing agent in the dye, papermaking, leather making, chemical synthesis and other industries, and can also be used to produce pharmaceutical intermediates. Food grade sodium bisulfite can be used as a food bleaching agent, preservative and antioxidant, etc.

[0003] For example, a medicinal sodium bisulfite solution preparation device disclosed in publication number CN217714952U requires molten sulfur to be fed into a sulfur incinerator during the preparation of the existing sodium bisulfite solution. The sulfur incinerator generates high temperature during operation, and the hot gas is not fully utilized in the sulfur incinerator, resulting in a large amount of heat energy being wasted, which is not conducive to the rational use of energy. A waste heat recovery structure is provided to absorb the heat of the incinerator, and the sulfur is heated by the coil after absorption. This method reduces the thickness of the furnace wall of the combustion furnace, and the coil structure is not convenient for disassembly and maintenance, resulting in the waste heat recovery system of the incinerator being easily damaged during use. In view of this, in-depth research was conducted on the above-mentioned problems, resulting in this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a sodium bisulfite solution preparation device, which solves the existing background technology problems.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a sodium bisulfite solution preparation device, including an incinerator, a mixing feeder is arranged on one side of the incinerator, the air jet of the mixing feeder extends into the furnace body of the incinerator, the outer edge of the mixing feeder is fixed to the furnace wall of the incinerator by a plurality of screws, and a plug-in heat exchange structure is arranged on the furnace wall of the incinerator;

[0006] The plug-in heat exchange structure comprises a plurality of heat exchange slots, a plurality of heat exchange slots are provided in a circular array on the furnace wall of the incinerator, and a plurality of heat exchange plates are inserted in the plurality of heat exchange slots;

[0007] The heat exchange plate is a long strip plate with an arc-shaped cross section, and a plurality of heat exchange fins are arranged in a circular array inside the heat exchange plate. A plurality of heat exchange slots are provided on the heat exchange slots corresponding to the plurality of heat exchange fins, and the plurality of heat exchange slots are attached to the outside of the plurality of heat exchange fins;

[0008] A water flow groove is provided in the heat exchange plate, and both ends of the water flow groove respectively penetrate through one side wall of the heat exchange plate, and both ends of the water flow groove are respectively connected to an upper water pipe and a lower water pipe;

[0009] The upper water pipe is connected to a main water inlet pipe, the lower water pipe is connected to a main water outlet pipe, and the main water outlet pipe is connected to a circulating heat exchange pipe.

[0010] Preferably, one end of the main water inlet pipe is connected to a water pump.

[0011] Preferably, the water circulation groove is a through groove of an M-shaped structure, and the water circulation groove is connected to the upper water pipe and the lower water pipe respectively through a pair of joints.

[0012] Preferably, the main water inlet pipe and the main water outlet pipe are both annular structures, and the annular diameter of the main water inlet pipe is larger than the annular diameter of the main water outlet pipe.

[0013] Preferably, a limiting spring buckle is provided on the top of the heat exchange plate, and a corresponding limiting groove is provided on the inner end of the heat exchange slot.

[0014] Preferably, the head end of the limit spring buckle is a hemispherical structure. Beneficial Effects

[0015] The utility model provides a sodium bisulfite solution preparation device. It has the following beneficial effects: the sodium bisulfite solution preparation device absorbs the heat generated by the incinerator by using a heat exchange plate that is plug-in connected to the heat exchange slot of the incinerator wall, and uses a circulation pipeline to complete the recycling. The heat exchange structure adopts a plug-in plate heat exchanger, and a circulating water channel is arranged inside the plug-in plate heat exchanger to fully exchange and absorb heat. The structure is simple and easy to maintain, and the impact on the integrity of the incinerator wall is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a sodium bisulfite solution preparation device described in the utility model.

[0017] Figure 2 It is a partial side structural schematic diagram of a sodium bisulfite solution preparation device described in the utility model.

[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of a sodium bisulfite solution preparation device described in the utility model.

[0019] In the figure: 1. Incinerator; 2. Mixing feeder; 3. Heat exchange slot; 4. Heat exchange plate; 5. Heat exchange fin; 6. Heat exchange slot; 7. Water flow slot; 8. Water supply pipe; 9. Water supply pipe; 10. Main water inlet pipe; 11. Main water outlet pipe; 12. Circulating heat exchange pipe; 13. Water supply pump; 14. Joint; 15. Limit spring buckle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the 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 in 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.

[0021] See also Figure 1-3 The utility model provides an implementation scheme: in view of the problem that the heat generated by the incinerator 1 in the preparation process of sodium bisulfite is mostly conducted on the furnace wall, resulting in waste, and the above-mentioned patent heat exchange adopts a coil structure, which is not convenient for maintenance and installation. The application discloses a sodium bisulfite solution preparation device, which is mainly installed on the incinerator 1. A mixing feeder 2 is arranged on one side of the incinerator 1. The mixing feeder 2 provides the incinerator 1 with mixed air required for combustion. The air jet of the mixing feeder 2 extends into the furnace body of the incinerator 1 to ensure that the combustion is not close to the side of the mixing feeder 2 to avoid affecting the work of the mixing feeder 2. The outer edge of the mixing feeder 2 is fixed to the furnace wall of the incinerator 1 by a plurality of screws. The mixing feeder 2 can be disassembled and assembled. At the same time, in order to effectively absorb the heat on the furnace wall of the incinerator 1 for reuse, a plug-in heat exchange structure is arranged on the furnace wall of the incinerator 1. The plug-in heat exchange structure is used to absorb heat and has a simple structure, which is more convenient for disassembly and maintenance.

[0022] According to the instruction manual Figure 1-3 It can be seen that the above-mentioned plug-in heat exchange structure includes a plurality of heat exchange slots 3. A plurality of heat exchange slots 3 are provided in a circular array on the furnace wall of the incinerator 1. A plurality of heat exchange plates 4 are inserted in the plurality of heat exchange slots 3. Through the full contact between the heat exchange plates 4 and the heat exchange slots 3, the heat on the furnace wall is transferred from the heat exchange slots 3 to the heat exchange plates 4. A water flow slot 7 is provided in the heat exchange plate 4. The two ends of the water flow slot 7 respectively penetrate one side wall of the heat exchange plate 4. The two ends of the water flow slot 7 are respectively connected to an upper water pipe 8 and a lower water pipe 9. The water exchange water is pumped into the water flow slot 7 in the heat exchange plate 4 through the upper water pipe 8. The upper water pipe 8 supplies water through the main water inlet pipe 10. The heat absorbed by the heat exchange plate 4 is taken away by the water flow groove 7 and discharged from the downpipe 9. The downpipes 9 in multiple directions are connected by the main outlet pipe 11. After converging together, they are circulated from the circulating heat exchange pipe 12 to the concentrated sulfuric acid preheating position that needs to be kept warm. The heat exchange plate 4 is a long strip with an arc-shaped cross-section. In this way, after the heat exchange plate 4 is inserted into the heat exchange slot 3, the integrity of the furnace wall of the incinerator 1 can be maintained. A plurality of heat exchange plates 5 are arranged in a circular array inside the heat exchange plate 4, and a plurality of heat exchange slots 6 are provided on the heat exchange slot 3 corresponding to the plurality of heat exchange plates 5. This can also increase the contact area between the heat exchange plate 4 and the heat exchange slot 3, thereby improving the heat exchange efficiency.

[0023] As a preferred solution, further, one end of the main water inlet pipe 10 is connected to the upper water pump 13, and the upper water pump 13 is connected to the end of the main water outlet pipe 11, so that water is circulated from the upper water pump 13 to the main water inlet pipe 10.

[0024] As a preferred solution, further, the water circulation groove 7 is an M-shaped through groove, and the water circulation groove 7 is connected to the upper water pipe 8 and the lower water pipe 9 respectively through a pair of joints 14, which is convenient for disassembly and assembly of the main water inlet pipe 10 and the main water outlet pipe 11.

[0025] As a preferred solution, further, the main water inlet pipe 10 and the main water outlet pipe 11 are both annular structures, and the annular diameter of the main water inlet pipe 10 is larger than the annular diameter of the main water outlet pipe 11, so that the two can be arranged at one end of the incinerator 1 at the same time, thereby facilitating management.

[0026] As a preferred solution, further, a limiting spring buckle 15 is provided on the top of the heat exchange plate 4 , and a corresponding limiting groove is provided on the inner end of the heat exchange slot 3 , which serves to limit the heat exchange plate 4 .

[0027] As a preferred solution, further, the head end of the limiting spring buckle 15 is a hemispherical structure.

[0028] In summary, it can be generally known that the sodium bisulfite solution preparation device absorbs the heat generated by the incinerator 1 by using the heat exchange plate 4 connected to the heat exchange slot 3 of the furnace wall of the incinerator 1 by plug-in, and completes the recycling by using the circulation pipeline. The heat exchange structure adopts a plug-in plate heat exchanger, and a circulating water channel is arranged inside the plug-in plate heat exchanger to fully exchange and absorb heat. The structure is simple and easy to maintain, and the impact on the integrity of the furnace wall of the incinerator 1 is small.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sodium bisulfite solution preparation device, comprising an incinerator (1), a mixing feeder (2) being arranged on one side of the incinerator (1), the air jet of the mixing feeder (2) extending into the furnace body of the incinerator (1), the outer edge of the mixing feeder (2) being fixed to the furnace wall of the incinerator (1) by a plurality of screws, characterized in that: A plug-in heat exchange structure is provided on the furnace wall of the incinerator (1); The plug-in heat exchange structure comprises a plurality of heat exchange slots (3), a plurality of heat exchange slots (3) are provided in a circular array on the furnace wall of the incinerator (1), and a plurality of heat exchange plates (4) are inserted into the plurality of heat exchange slots (3); The heat exchange plate (4) is a long strip plate with an arc-shaped cross section, a plurality of heat exchange fins (5) are arranged in a ring array inside the heat exchange plate (4), a plurality of heat exchange slots (6) are provided on the heat exchange slot (3) corresponding to the plurality of heat exchange fins (5), and the plurality of heat exchange slots (6) are attached to the outside of the plurality of heat exchange fins (5); A water circulation groove (7) is provided in the heat exchange plate (4), and two ends of the water circulation groove (7) respectively penetrate a side wall of the heat exchange plate (4), and two ends of the water circulation groove (7) are respectively connected to an upper water pipe (8) and a lower water pipe (9); The upper water pipe (8) is connected to a main water inlet pipe (10), the lower water pipe (9) is connected to a main water outlet pipe (11), and the main water outlet pipe (11) is connected to a circulating heat exchange pipe (12).

2. A sodium bisulfite solution preparation device according to claim 1, characterized in that, One end of the main water inlet pipe (10) is connected to a water pump (13).

3. A sodium bisulfite solution preparation device according to claim 2, characterized in that, The water circulation groove (7) is a through groove with an M-shaped structure, and the water circulation groove (7) is connected to the upper water pipe (8) and the lower water pipe (9) respectively via a pair of joints (14).

4. A sodium bisulfite solution preparation device according to claim 3, characterized in that, The main water inlet pipe (10) and the main water outlet pipe (11) are both annular structures, and the annular diameter of the main water inlet pipe (10) is greater than the annular diameter of the main water outlet pipe (11).

5. A sodium bisulfite solution preparation device according to claim 4, characterized in that, A limit spring buckle (15) is provided on the top of the heat exchange plate (4), and a limit groove is provided at the inner end of the corresponding heat exchange slot (3).

6. A sodium bisulfite solution preparation device according to claim 5, characterized in that, The head end of the limit spring buckle (15) is a hemispherical structure.

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