CN217856112U

CN217856112U - Sodium dichloroisocyanurate reaction drying device

Info

Publication number: CN217856112U
Application number: CN202220928161.7U
Authority: CN
Inventors: 王建伍; 董占良; 董雷雷; 陈建新
Original assignee: Hebei Liuhe Chemical Co ltd
Current assignee: Hebei Liuhe Chemical Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-11-22
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a sodium dichloroisocyanurate reaction drying device, which belongs to the technical field of chemical equipment and comprises a curing bin consisting of a bin body and a conveyer belt, wherein a stirring component is arranged above the conveyer belt, and the top of the bin body is provided with a spraying component for spraying materials in the bin body; the bin body discharge port is connected with the feed port of the dryer, and the dryer can dry the generated sodium dichlorocyanurate to meet the requirement of the moisture content of the product. The utility model sprays water to the mixed material of dichloroisocyanuric acid and sodium carbonate in the curing bin through the spraying component, so as to ensure the water required by the reaction, and the two materials are fully mixed by the stirring component on the conveyer belt, so as to ensure the full reaction; conveying the reacted product sodium dichlorocyanurate into a dryer by using a conveying belt for drying, and finally granulating and forming by using a granulator. The utility model discloses degree of automation is high, is favorable to realizing serialization production with the combination of preface equipment around, has improved production efficiency, has reduced staff's intensity of labour.

Description

Sodium dichloroisocyanurate reaction drying device

Technical Field

The utility model belongs to the technical field of chemical industry equipment, especially, relate to a sodium dichloroisocyanurate reaction drying device.

Background

The present production process of sodium dichloroisocyanurate is mainly characterized by that it uses cyanuric acid, calcium carbonate, sodium carbonate and chlorine gas as raw material, firstly mixes cyanuric acid and calcium carbonate, then makes them react with chlorine gas to produce dichlorocyanuric acid, then makes the subsequent dichlorocyanuric acid and sodium carbonate mix and react to produce sodium dichloroisocyanurate. The reaction of the dichloroisocyanuric acid and the sodium carbonate needs to be fully cured and then dried, at present, the reaction is cured and dried in batches, the material turnover is tedious, time and labor are wasted, the working efficiency is low, the labor intensity of workers is high, and meanwhile, the continuous mass production is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a sodium dichloroisocyanurate reaction drying device, reduced staff's intensity of labour, can realize serialization production.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a sodium dichloroisocyanurate reaction drying device comprises a curing bin for conveying and curing a mixed material of dichloroisocyanuric acid and sodium carbonate, wherein the curing bin comprises a bin body and a conveying belt at the bottom of the bin body, a stirring assembly is arranged above the conveying belt, and a spraying assembly for spraying the material in the bin body is arranged at the top of the bin body; the discharge hole of the bin body is connected with the feed hole of a dryer, and the dryer is used for drying the generated sodium dichloro cyanurate; the bin body exhaust pipe is connected with a tail gas treatment device.

Preferably, the stirring assembly comprises a plurality of stirring shafts which are arranged in parallel along the length direction of the conveying belt, and the central axes of the stirring shafts are vertical to the running direction of the conveying belt; a plurality of stirring blades are arranged on the stirring shaft at intervals and used for scattering the mixed material of the dichloroisocyanuric acid and the sodium carbonate on the conveyer belt; the stirring shaft is driven by a motor, and the motor is arranged on the outer side of the bin body.

Preferably, a buffer bin is arranged between the curing bin and the dryer, a conveying belt is arranged at the bottom of the buffer bin, and a discharging end of the conveying belt of the buffer bin is arranged above a feeding hole of the dryer.

Preferably, the dryer is a fluidized bed dryer, the bottom of the fluidized bed dryer is connected with a hot air pipe, and a discharge port of the fluidized bed dryer is connected with a powder conveying pipe.

Preferably, the hot air pipe is connected with an air outlet of a heat exchanger, and an air inlet of the heat exchanger is connected with an air blower; a heat exchange medium inlet of the heat exchanger is connected with a steam pipe, and a heat exchange medium outlet is connected with a condensate pipe; the steam pipe is communicated with the inner cavity of the bin body.

Preferably, a discharge port of the fluidized bed dryer is connected with a feed port of the cyclone separator through a powder conveying pipe, an exhaust pipe of the fluidized bed dryer is connected with the cyclone dust collector, gas outlets of the cyclone separator and the cyclone dust collector are connected with a secondary dust collector, and the secondary dust collector is connected with a draught fan; and the bottom discharge ports of the cyclone dust collector and the cyclone separator are connected with the inlet of the spiral feeder, and the discharge port of the spiral feeder is connected with the granulator.

Preferably, the lower part of the powder conveying pipe is provided with a material supplementing port, and the material supplementing port is provided with a material supplementing conveyor.

Preferably, the secondary dust remover comprises two pulse dust removers, namely a first pulse dust remover and a second pulse dust remover, wherein an air inlet pipe of the first pulse dust remover is connected with an air outlet of the cyclone dust remover, an air inlet pipe of the second pulse dust remover is connected with an air outlet of the cyclone dust remover, an air outlet pipe of the first pulse dust remover is connected with the spray tower, an air outlet at the top of the spray tower is communicated with an air discharge pipe, an air outlet pipe of the second pulse dust remover is communicated with the air discharge pipe, and a solid discharge hole of the second pulse dust remover is connected with the spiral feeder; and a powder collecting bag is arranged at a discharge port at the bottom of the first pulse dust collector.

Preferably, a discharge hole of the granulator is provided with a vibrating screen, a powder outlet at the bottom of the vibrating screen is connected with a feed inlet of a bucket elevator, and a discharge hole of the bucket elevator is connected with the feed inlet of the granulator; and a discharge port of the vibrating screen is provided with a finished product bin.

Preferably, the exhaust pipe of the vibrating screen is connected with a dust remover, and the dust remover is connected with a dust removal pipe through an induced draft fan.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model sprays water to the mixed material of dichloroisocyanuric acid and sodium carbonate in the curing bin through the spraying component, so as to ensure the water required by the reaction, and the two materials are fully mixed by the stirring component on the conveyer belt, so as to ensure the full reaction; conveying the reacted product sodium dichlorocyanurate into a dryer by using a conveying belt for drying to meet the requirement of the moisture content of the product, and finally granulating and molding by using a granulator. The utility model discloses degree of automation is high, is favorable to realizing serialization production with the combination of preface equipment around, has improved production efficiency, has reduced staff's intensity of labour.

Drawings

FIG. 1 is a schematic structural diagram of a sodium dichloroisocyanurate reaction drying device provided by an embodiment of the present invention;

fig. 2 is a schematic view of the arrangement of the stirring assembly on the conveyer belt below the bin body in one embodiment of the present invention;

in the figure: 400-a curing bin, 401-a bin body, 402-a spray assembly, 403-stirring blades, 404-a motor, 405-a blower, 406-a steam pipe, 407-an induced draft fan, 408-a cyclone separator, 409-a cyclone dust collector, 410-a dryer, 411-a hot air pipe, 412-a first pulse dust collector, 413-a second pulse dust collector, 414-a spray tower, 415-a finished product conveyor, 416-a dust collector, 417-a material pouring bin and 418-a conveyor belt; 420-a buffer bin, 430-a powder conveying pipe and 431-a material supplementing conveyor; 440-heat exchanger, 450-spiral feeder, 460-granulator, 470-vibrating screen, 480-bucket elevator, 490-finished product bin. 01-mixer, 02-bin body exhaust pipe, 03-spray pipe and 04-spray pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions in the embodiments of the present invention are described below clearly and completely with reference to the accompanying drawings and specific embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a sodium dichloroisocyanurate reaction drying device, including the curing storehouse 400 that is used for carrying and curing dichloroisocyanuric acid and sodium carbonate mixture, curing storehouse 400 includes storehouse body 401 and the conveyer belt of bottom, the top of conveyer belt is equipped with stirring assembly, the top of storehouse body 401 is equipped with the spray assembly 402 that is used for spraying to its inside material, spray assembly comprises shower and a plurality of shower nozzle of arranging in the storehouse body; the discharge hole of the bin body 401 is connected with the feed hole of a dryer 410, and the dryer 410 is used for drying the generated sodium dichloro cyanurate. Wherein, storehouse body feed inlet links to each other with the export of preorder blendor 01 for the shower of carrying water is arranged in storehouse body outside, utilizes the shower nozzle to spray the material on the conveyer belt, guarantees the required moisture of reaction. After mixing the dichloroisocyanuric acid and the sodium carbonate by the pre-mixer, the mixture enters a bin body, and the solid-solid reaction of the mixed material is completed in the processes of spraying, stirring and conveying to generate the sodium dichlorocyanurate.

In one embodiment of the present invention, as shown in fig. 2, the stirring assembly 402 comprises a plurality of stirring shafts arranged side by side along the length direction of the conveyer belt, and the central axis of the stirring shafts is perpendicular to the running direction of the conveyer belt; a plurality of stirring blades 403 are arranged on the stirring shaft at intervals and used for scattering the mixed material of the dichloroisocyanuric acid and the sodium carbonate on the conveyer belt; the stirring shaft is driven by a motor 404, and the motor 404 is arranged on the outer side of the bin body 401. The gas that the material gived off at the stirring in-process is discharged through storehouse body blast pipe 02, gets into tail gas processing apparatus at last, can carry out innocent treatment with storehouse body combustion gas, realizes discharge to reach standard. The two-dot chain line in fig. 1 indicates the gas flow direction.

As a preferable scheme, as shown in fig. 1, a buffer bin 420 is arranged between the curing bin 400 and the drying machine 410, a conveyor belt is arranged at the bottom of the buffer bin 420, and a discharge end of the conveyor belt of the buffer bin 420 is arranged above a feed inlet of the drying machine 410. Utilize the buffer storehouse to carry out the buffer to the material after the curing reaction, can guarantee the continuous feed of desiccator.

In a specific embodiment of the present invention, as shown in fig. 1, the dryer 410 is a fluidized bed dryer, the bottom of the fluidized bed dryer is connected to the hot air pipe 411, and the discharge port of the fluidized bed dryer is connected to the powder conveying pipe 430. The exhaust pipe of the dryer is connected with the dust removal pipe through the induced draft fan 407, and the dust removal pipe is finally connected with a first pulse dust remover of the dust removal device, so that the purpose of gas dust removal is achieved.

During specific design, the hot air pipe 411 is connected with an air outlet of the heat exchanger 440, and an air inlet of the heat exchanger 440 is connected with the blower 405; a heat exchange medium inlet of the heat exchanger 440 is connected with the steam pipe 406, a heat exchange medium outlet is connected with a condensate pipe, and condensate water finally returns to the desalted water station; the steam pipe 406 is communicated with the inner cavity of the bin body 401, so that the purpose of preventing fire is achieved. Wherein, the pipelines of the steam pipe and the hot air pipe are respectively provided with an electric control valve and an automatic temperature measuring instrument for controlling the temperature, and the flow of the steam is automatically controlled by the outlet temperature of the heat exchanger. When the temperature in the storehouse body is ultrahigh, open the steam valve that communicates the storehouse body, usable steam is with the internal gas outgoing in storehouse, ensures the safe operation in curing storehouse.

Since the dried sodium dichlorocyanurate is in the form of powder and is easily mixed in the gas, it needs to be separated. As shown in fig. 1, a discharge port of the fluidized bed dryer is connected with a feed port of a cyclone separator 408 through a powder conveying pipe 430, an exhaust pipe of the fluidized bed dryer is connected with a cyclone dust collector 409, gas outlets of the cyclone separator 408 and the cyclone dust collector 409 are both connected with a secondary dust collector, and the secondary dust collector is connected with an induced draft fan 407; the bottom discharge ports of the cyclone 409 and the cyclone 408 are connected with the inlet of the screw feeder 450, and the discharge port of the screw feeder 450 is connected with the granulator 460. Separating the sodium dichlorocyanurate powder by a cyclone separator, and then feeding the separated sodium dichlorocyanurate powder into a granulator by a spiral feeder for granulation and molding; meanwhile, gas discharged from the cyclone separator enters a cyclone dust collector for dust removal, the solid obtained by dust removal is sodium dichloro cyanurate powder, and the sodium dichloro cyanurate powder separated in the dust removal process is conveyed to a spiral feeder for recovery, so that the material waste is reduced.

When the design is specific, as shown in fig. 1, the secondary dust remover is two pulse dust removers, which are respectively a first pulse dust remover 412 and a second pulse dust remover 413, an air inlet pipe of the first pulse dust remover 412 is connected with an air outlet of a cyclone dust remover 409, an air inlet pipe of the second pulse dust remover 413 is connected with an air outlet of a cyclone separator 408, an air outlet pipe of the first pulse dust remover 412 is connected with a spray tower 414, an air outlet at the top of the spray tower 414 is communicated with an air discharge pipe, an air outlet pipe of the second pulse dust remover 413 is communicated with an air discharge pipe, and a solid discharge port of the second pulse dust remover 413 is connected with a spiral feeder 450, so that sodium dichloro cyanurate powder in the dust removal process can be further recovered; the bottom discharge port of the first pulse dust collector 412 is provided with a powder collecting bag, and the sodium dichlorocyanurate powder in the powder collecting bag can be recycled. Circulating water in the spray tower 414 comes from a circulating water tank, and the circulating water is recycled through a circulating water pump and a circulating water pipeline; circulating water entering the spray tower 414 is sprayed circularly by the spray pump 04 and the pipeline, and the sprayed gas finally reaches the standard and is discharged.

Because the granulated product also contains a certain amount of powder, a vibrating screen 470 is arranged at the discharge hole of the granulator 460, a powder outlet at the bottom of the vibrating screen 470 is connected with the feed inlet of a bucket elevator 480, and the discharge hole of the bucket elevator 480 is connected with the feed inlet of the granulator 460; and a finished product bin 490 is arranged at the discharge hole of the vibrating screen 470. Conveying the finished sodium dichloro cyanurate sieved by the vibrating screen 470 to a finished product bin 490 by a finished product conveyor 415; meanwhile, the powder screened out by the vibrating screen is recycled to the granulator again through the bucket elevator for granulation again, so that the product recovery rate is improved, and the waste phenomenon is avoided. During specific production, a plurality of vibrating screens and finished product conveyors can be designed, the vibrating screens are connected with the granulator in parallel, each vibrating screen is provided with one finished product conveyor, and the spiral conveyors are connected in parallel or in series, so that continuous production of granulation can be realized; meanwhile, a vibrating screen is arranged between the finished product conveyor and the finished product bin to further screen finished sodium dichlorocyanurate granules, so that the sodium dichlorocyanurate powder finally entering the finished product bin is reduced.

When the finished product bin is full of products, the products can be conveyed to a material pouring bin 417 through a conveying belt 418 for caching, and meanwhile, dust generated in the material pouring process in the material pouring bin 417 is pumped into a dust removal pipe by using an induced draft fan 407 and an exhaust pipe and finally enters a first pulse dust remover of dust removal equipment.

Further optimizing the above technical solution, as shown in fig. 1, a replenishing port is provided at a lower portion of the powder conveying pipe 430, and the replenishing port is provided with a replenishing conveyor 431. By adopting the structure, the sieved sodium dichlorocyanurate powder or other additives can be added into the powder conveying pipe through the supplement conveyor, and then mixed under the pumping action of the cyclone separator and enter the granulator.

In order to avoid the gas emission of the vibrating screen exceeding the standard in the screening process, the exhaust pipe of the vibrating screen 470 is connected with the dust remover 416, the dust remover 416 is connected with the dust removing pipe through the induced draft fan 407, and the dust removing pipe is communicated with the first pulse dust remover 412, so that the dust removing purpose is realized.

The utility model discloses a concrete application as follows: the mixed material of the dichloroisocyanuric acid and the sodium carbonate is fully subjected to curing reaction in a curing bin, sodium dichlorocyanurate obtained by the reaction enters a buffer bin for buffering through a conveyer belt, then is conveyed to a dryer for drying through the conveyer belt at the bottom of the buffer bin, sodium dichlorocyanurate powder enters a cyclone separator along with air under the negative pressure action in a powder conveying pipe for separation, and the separated sodium dichlorocyanurate powder enters a granulator for granulation and molding. Dust generated in the processes of drying and separating the sodium dichlorocyanurate powder and screening the sodium dichlorocyanurate granules is subjected to dust removal treatment by a dust remover and a spray tower, and finally meets the emission standard of environmental protection requirements, so that the air pollution is reduced, and the physical health of workers is ensured. Meanwhile, the water for the spray tower is circulated by the circulating water pump and the water in the circulating water tank, so that the utilization rate of the water is improved, the waste of water resources is avoided, and the production cost is further reduced.

To sum up, the utility model has the advantages of degree of mechanization is high, production efficiency is high, the conveyer belt that utilizes curing storehouse, buffer storehouse bottom can realize the material and carry in succession, in the cyclone was pumped to the dichloro cyanurate powder after the powder conveyer pipe will fluidized bed drier is dry again, dichloro cyanurate powder gets into the granulator at last and obtains the dichloro cyanurate granule material. The utility model discloses a serialization production has improved production efficiency and production volume, has also reduced required human cost of production and raw materials cost simultaneously.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A sodium dichloroisocyanurate reaction drying device is characterized in that: the curing bin comprises a bin body and a conveying belt at the bottom of the bin body, a stirring assembly is arranged above the conveying belt, and a spraying assembly used for spraying materials in the bin body is arranged at the top of the bin body; and the discharge hole of the bin body is connected with the feed hole of the dryer, and the dryer is used for drying the generated sodium dichloro cyanurate.

2. The sodium dichloroisocyanurate reaction drying device of claim 1, wherein: the stirring assembly comprises a plurality of stirring shafts which are arranged in parallel along the length direction of the conveying belt, and the central axis of each stirring shaft is vertical to the running direction of the conveying belt; a plurality of stirring blades are arranged on the stirring shaft at intervals and used for scattering the mixed material of the dichloroisocyanuric acid and the sodium carbonate on the conveyer belt; the stirring shaft is driven by a motor, and the motor is arranged on the outer side of the bin body.

3. The sodium dichloroisocyanurate reaction drying device of claim 1, wherein: be equipped with the buffer storehouse between curing storehouse and the desiccator, the bottom in buffer storehouse is equipped with the conveyer belt, the conveyer belt discharge end in buffer storehouse sets up in the feed inlet top of desiccator.

4. The sodium dichloroisocyanurate reaction drying device of claim 3, wherein: the desiccator is the fluidized bed dryer, the bottom and the hot air pipe of fluidized bed dryer link to each other, the discharge gate and the powder conveyer pipe of fluidized bed dryer link to each other.

5. The sodium dichloroisocyanurate reaction drying device of claim 4, wherein: the hot air pipe is connected with the air outlet of the heat exchanger, and the air inlet of the heat exchanger is connected with the air blower; a heat exchange medium inlet of the heat exchanger is connected with a steam pipe, and a heat exchange medium outlet is connected with a condensate pipe; the steam pipe is communicated with the inner cavity of the bin body.

6. The sodium dichloroisocyanurate reaction drying device of claim 4, wherein: the discharge port of the fluidized bed dryer is connected with the feed port of the cyclone separator through a powder conveying pipe, the exhaust pipe of the fluidized bed dryer is connected with the cyclone dust collector, the gas outlets of the cyclone separator and the cyclone dust collector are connected with the secondary dust collector, and the secondary dust collector is connected with the induced draft fan; and the bottom discharge ports of the cyclone dust collector and the cyclone separator are connected with the inlet of a spiral feeder, and the discharge port of the spiral feeder is connected with the granulator.

7. The sodium dichloroisocyanurate reaction drying device of claim 6, wherein: the lower part of the powder conveying pipe is provided with a material supplementing opening, and the material supplementing opening is provided with a material supplementing conveyor.

8. The sodium dichloroisocyanurate reaction drying device of claim 6, wherein: the secondary dust remover comprises two pulse dust removers, namely a first pulse dust remover and a second pulse dust remover, wherein an air inlet pipe of the first pulse dust remover is connected with an air outlet of the cyclone dust remover, an air inlet pipe of the second pulse dust remover is connected with an air outlet of the cyclone dust remover, an air outlet pipe of the first pulse dust remover is connected with the spray tower, an air outlet at the top of the spray tower is communicated with an air release pipe, an air outlet pipe of the second pulse dust remover is communicated with the air release pipe, and a solid discharge port of the second pulse dust remover is connected with the spiral feeder; and a powder collecting bag is arranged at a discharge port at the bottom of the first pulse dust collector.

9. The sodium dichloroisocyanurate reaction drying device of claim 6, wherein: a discharging port of the granulator is provided with a vibrating screen, a powder outlet at the bottom of the vibrating screen is connected with a feeding port of a bucket elevator, and a discharging port of the bucket elevator is connected with a feeding port of the granulator; and a finished product bin is arranged at a discharge port of the vibrating screen.

10. The sodium dichloroisocyanurate reaction drying device of claim 9, wherein: the exhaust pipe of the vibrating screen is connected with a dust remover, and the dust remover is connected with a dust removal pipe through an induced draft fan.