Reaction device for producing sodium hexametaphosphate

Abstract

The utility model discloses a reaction container for producing sodium hexametaphosphate, which comprises a purification chamber, a calcining furnace, a gas recovery device and a liquid flow meter, integrates a reactor and a purification device into a whole, does not need to be connected by parts, and is high in integral strength, good in reaction stability and high in production efficiency. The environmental pollution caused by material and energy loss waste gas in the reaction process is reduced. When the sodium hexametaphosphate reaction is carried out, gas is discharged while the reaction can be continued, the deionized water is atomized and the reaction is discharged through a liquid outlet, and the reaction and purification are carried out at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of production process of sodium hexametaphosphate, in particular to a reaction device for producing sodium hexametaphosphate. Background Art

[0002] Sodium hexametaphosphate is widely used in the industrial field. It can be used as a detergent, food additive, industrial water softener, leather pretanning agent, oil well mud control agent, papermaking oil pollution prevention agent, and paint, kaolin, magnesium oxide, calcium carbonate and other suspension treatment dispersant. However, sodium hexametaphosphate is prone to produce waste gas containing certain pollutants in industrial production. At present, the industrial production of sodium hexametaphosphate is produced through calcination, dehydration, melting, and cooling processes in high-temperature reactors. Waste gas is generated in this series of reactions and has certain hazards. The current production directly discharges waste gas into the atmosphere, which will cause environmental pollution and harm health, and does not have the concept of environmental protection and green. Summary of the invention

[0003] The purpose of the utility model is to provide a reaction device for producing sodium hexametaphosphate. The reaction device integrates a reactor and a purification device into one, does not require component connection, has high overall strength, good reaction stability, can react continuously, and reduces the pollution of waste gas to the environment during the reaction.

[0004] The technical solution of the utility model is a reaction device for producing sodium hexametaphosphate, comprising a purification chamber, a calcining furnace, a gas recovery device and a liquid flow meter, wherein both sides of the purification chamber are connected to the calcining furnace through the gas recovery device, and the upper right side of the purification chamber is connected to the liquid flow meter.

[0005] The purification chamber is provided with an atomizing nozzle and a liquid discharge port. The purification chamber is connected to a gas recovery device through an air inlet pipe, and the atomizing nozzle is connected to a liquid flow meter through a liquid inlet pipe.

[0006] The aforementioned gas recovery device includes a gas flow meter and an air suction pump. The lower end of the gas flow meter is connected to the air suction pump through a ventilation pipe, the upper end of the gas flow meter is connected to the air inlet pipe, the gas flow meter is provided with a gas flow regulating valve, and the lower end of the air suction pump is connected to the calcining furnace.

[0007] The aforementioned liquid flow meter is provided with a liquid flow meter regulating valve.

[0008] The calcining furnace is provided with a bracket to support the purification chamber.

[0009] The aforementioned clean room is made of a composite material with a carbon steel outer shell and a refractory brick inner lining.

[0010] The aforementioned calcining furnace adopts a composite material with a carbon steel outer shell and a refractory brick inner lining.

[0011] Beneficial effects of the utility model:

[0012] (1) Reaction and purification integration: The present invention integrates the reactor calcining furnace and the purification device into one, without the need for component connection, with high overall strength and good reaction stability, thus reducing the pollution of the environment by waste gas during the reaction.

[0013] (2) Continuous reaction and purification: When the sodium hexametaphosphate reaction is carried out, the gas is discharged while the reaction is sustained, and the deionized water is atomized and reacts with it and is discharged through the drain port, so that the reaction and purification are carried out simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0015] Attached Figure 2 This is a schematic diagram of the structure of the clean room of the utility model;

[0016] Attached Figure 3 It is a structural schematic diagram of the gas recovery device of the utility model.

[0017] The markings in the accompanying drawings are 1-purification chamber, 2-calcining furnace, 3-gas recovery device, 4-liquid flow meter, 101-atomizing nozzle, 102-discharge port, 103-air inlet pipe, 104-liquid inlet pipe, 201-bracket, 301-gas flow meter, 302-suction pump, 303-ventilation pipe, 304-gas flow regulating valve, 401-liquid flow regulating valve. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0019] Embodiment 1 of the present utility model:

[0020] A reaction device for producing sodium hexametaphosphate, comprising: Figure 1-3 As shown, it includes a purification chamber 1, a calcining furnace 2, a gas recovery device 3 and a liquid flow meter 4. Both sides of the purification chamber 1 are connected to the calcining furnace 2 through the gas recovery device 3, and the upper right side of the purification chamber 1 is connected to the liquid flow meter 4.

[0021] The purification chamber 1 is provided with an atomizing nozzle 101 and a liquid discharge port 102 . The purification chamber 1 is connected to the gas recovery device 3 via an air inlet pipe 103 , and the atomizing nozzle 101 is connected to the liquid flow meter 4 via a liquid inlet pipe 104 .

[0022] The gas recovery device 3 includes a gas flow meter 301 and an air suction pump 302. The lower end of the gas flow meter 301 is connected to the air suction pump 302 through a ventilation pipe 303, and the upper end of the gas flow meter 301 is connected to the air inlet pipe 103. A gas flow regulating valve 304 is provided on the gas flow meter 301. The lower end of the air suction pump 302 is connected to the calcining furnace 2.

[0023] The liquid flow meter 4 is provided with a liquid flow regulating valve 401 .

[0024] The calcining furnace 2 has a support 201 to support the purification chamber 1 .

[0025] The purification chamber 1 is made of a composite material with a carbon steel outer shell and a refractory brick inner lining.

[0026] The calcining furnace 2 is made of a composite material with a carbon steel outer shell and a refractory brick inner lining.

[0027] Specific steps for waste gas recovery during the production of sodium hexametaphosphate:

[0028] (1) Adding the reactants for producing sodium hexametaphosphate into a calcining furnace and heating them for reaction, sulfur trioxide gas will overflow during the reaction;

[0029] (2) The gas generated by the reaction is sucked into the ventilation pipe through the suction pump, and the gas flow meter controls the gas flow rate into the intake pipe and then into the purification chamber;

[0030] (3) The liquid flow meter controls the flow rate of deionized water entering the liquid inlet pipe. The atomizing nozzle is connected to the liquid inlet pipe to spray the deionized water out in atomized form. The atomized deionized water combines with the gas coming out of the air inlet pipe. After the gas is absorbed, it is converted into liquid form and discharged through the liquid discharge port. The cycle continues to achieve the purpose of reaction and purification.

Claims

1. A reaction device for producing sodium hexametaphosphate, characterized in that: The invention comprises a purification chamber (1), a calcining furnace (2), a gas recovery device (3) and a liquid flow meter (4); both sides of the purification chamber (1) are connected to the calcining furnace (2) via the gas recovery device (3); and the upper right side of the purification chamber (1) is connected to the liquid flow meter (4).

2. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: An atomizing nozzle (101) and a liquid discharge port (102) are provided in the purification chamber (1); the purification chamber (1) is connected to a gas recovery device (3) via an air inlet pipe (103); and the atomizing nozzle (101) is connected to a liquid flow meter (4) via a liquid inlet pipe (104).

3. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: The gas recovery device (3) comprises a gas flow meter (301) and an air suction pump (302); the lower end of the gas flow meter (301) is connected to the air suction pump (302) via a ventilation pipe (303); the upper end of the gas flow meter (301) is connected to an air inlet pipe (103); a gas flow regulating valve (304) is provided on the gas flow meter (301); and the lower end of the air suction pump (302) is connected to a calcining furnace (2).

4. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: The liquid flow meter (4) is provided with a liquid flow regulating valve (401).

5. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: The calcining furnace (2) is provided with a support (201) to support the purification chamber (1).

6. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: The purification chamber (1) is made of a composite material with a carbon steel outer shell and a refractory brick inner lining.

7. The reaction device for producing sodium hexametaphosphate according to claim 1, characterized in that: The calcining furnace (2) is made of a composite material with a carbon steel outer shell and a refractory brick inner lining.

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