CN218306255U

CN218306255U - Sulfamic acid recrystallization device

Info

Publication number: CN218306255U
Application number: CN202122452023.4U
Authority: CN
Inventors: 陈阳阳; 范燕双; 郭恒; 李洋洋; 崔文进; 石波
Original assignee: Shandong Xingda Chemical Co ltd
Current assignee: Shandong Xingda Chemical Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-01-17
Anticipated expiration: 2031-10-12

Abstract

The utility model provides a sulfamic acid recrystallization device, includes the heating jar, heating jar sub-unit connection has a first water pump that is used for carrying solution, the one end that the heating jar was kept away from to first water pump is connected with the filter core, the one end that first water pump was kept away from to the filter core is connected with the crystallizer, still includes cooling system, cooling system includes a plurality of water pipes that are used for adjusting the crystallizer temperature and the boiler that is used for the water storage, the sub-unit connection of boiler has the inlet tube, be provided with the circulating pump that makes water pipe hydrologic cycle on the inlet tube, the one end that the boiler was kept away from to the inlet tube is connected with the crystallizer, the upper portion of crystallizer is connected with the outlet pipe, be provided with the valve on the outlet pipe, the one end that the crystallizer was kept away from to the outlet pipe is connected with the boiler, the crystallizer is provided with the intermediate layer, be provided with the water pipe that is the rule and arranges in the intermediate layer, the bottom of crystallizer is provided with the filter head, the top of filter head is connected with the drinking-water pipe, the one end that the filter head was kept away from to the drinking-water pipe is connected with the second water pump and is connected with the second water pump.

Description

Sulfamic acid recrystallization device

Technical Field

The utility model belongs to crystal purification field especially relates to a sulfamic acid recrystallization device.

Background

Recrystallization is the process of dissolving crystals in a solvent or melting, and then recrystallizing from the solution or the melt. Recrystallization can purify impure materials or separate salts from each other when mixed together. Moreover, the whole process is carried out in the reaction tank in order to prevent impurities from being mixed.

However, in the existing sulfamic acid recrystallization device, the temperature range of the solution is reduced to 10-50 ℃ only through natural heat release in the recrystallization process so as to precipitate crystals, the heat release process is fast in winter and slow in summer, and usually needs several hours, so that the production efficiency is influenced, and therefore, a recrystallization device capable of accelerating the heat release process of the sulfamic acid solution is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a slow problem of foretell crystallization speed provides a sulfamic acid recrystallization device that can absorb heat in the crystallizer and simple structure.

In order to achieve the purpose, the utility model discloses a technical scheme do, an sulfamic acid recrystallization device, including the heating jar, the heating jar sub-unit connection has the first water pump that is used for carrying solution, the one end that the heating jar was kept away from to first water pump is connected with the filter core, the one end that first water pump was kept away from to the filter core is connected with the crystallizer, still includes cooling system, cooling system includes a plurality of water pipes that are used for adjusting the crystallizer temperature and the boiler that is used for the water storage, the sub-unit connection of boiler has the inlet tube, be provided with the circulating pump that makes water pipe hydrologic cycle on the inlet tube, the one end that the boiler was kept away from to the inlet tube is connected with the crystallizer, the upper portion of crystallizer is connected with the outlet pipe, be provided with the valve on the outlet pipe, the one end that the crystallizer was kept away from to the outlet pipe is connected with the boiler, the crystallizer is provided with the intermediate layer, be provided with the water pipe that is regularly arranged in the intermediate layer, the bottom of crystallizer is provided with the filter head, the top of filter head is connected with the drinking-water pipe, the one end that the filter head was kept away from to the drinking-water pipe is connected with the second water pump.

Preferably, the upper part of the crystallizing tank is provided with a fixed sealing cover and a movable sealing cover adjacent to the fixed sealing cover, and the movable sealing cover is provided with a handle.

Preferably, the filter head comprises a support for supporting and a fine filter screen coated on the support.

Preferably, a plurality of impellers are arranged in the heating tank and are regularly arranged in the vertical direction.

Preferably, the upper portion of heating jar is provided with air pressure balancing unit, air pressure balancing unit is including purifying the box, be equipped with active carbon in the purification box, the upper portion of purifying the box is provided with the gas outlet.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses a be provided with cooling system, make the water in the boiler absorb the heat in the crystallizer to reached the temperature in the quick reduction crystallizer, and water heats slowly, makes the crystallizer temperature maintain 10 ℃ -50 ℃, does benefit to sulfamic acid solution crystallization, and taking out sulfamic acid crystal collection in-process, the boiler can be to still having the water heating of waste heat, makes cooling system's cooling function change the intensification function into, makes the interior moisture evaporation of crystallizer, makes things convenient for the workman to collect sulfamic acid crystal. The utility model discloses simple structure can reduce crystallizer temperature fast, suitable using widely.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic diagram of the structure of a recrystallization device for sulfamic acid;

FIG. 2 is a half sectional view of a fine screen;

in each of the above figures, 1, a heating tank; 11. an impeller; 2. an air pressure balancing device; 21. a purification box; 22. an air outlet; 3. a first water pump; 4. a filter element; 5. a crystallizing tank; 51. a water pipe; 52. a discharge port; 6. a cooling system; 61. a boiler; 62. a water outlet pipe; 63. a valve; 64. a water inlet pipe; 65. a circulation pump; 7. fixing a sealing cover; 8. a movable cover; 81. a handle; 9. a filter head; 91. a water pumping pipe; 92. a second water pump; 93. a fine filter screen; 94. and (3) a bracket.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

As shown in fig. 1 and fig. 2, a sulfamic acid recrystallization device, including heating tank 1, heating tank 1 makes sulfamic acid crystal dissolve in solution through the heating, correspondingly impurity will be appeared from the crystal, the sub-unit connection of heating tank 1 has first water pump 3 that is used for carrying the solution, the one end that heating tank 1 was kept away from to first water pump 3 is connected with filter core 4, install the filter screen in the filter core 4, when solution was passed through from it, impurity is filtered by filter core 4, the one end that first water pump 3 was kept away from to filter core 4 is connected with crystallizer 5, the solution is at the cooling of crystallizer 5 and crystallization, crystallizer 5 is "bowl-shaped" that the opening is big, the end is shallow, make things convenient for the workman to stretch into the instrument and collect the sulfamic acid in the crystallizer 5 and take out.

In order to accelerate the exothermic process of sulfamic acid solution, the utility model discloses still include cooling system 6, cooling system 6 includes that a plurality of roots are used for adjusting the water pipe of crystallizer 5 temperature and the boiler 61 that is used for the water storage, boiler 61 can connect from the running water pipeline and get cold water, the sub-unit connection of boiler 61 has inlet tube 64, be provided with the circulating pump 65 that makes water pipe inner water circulation on the inlet tube 64, the one end that boiler 61 was kept away from to inlet tube 64 is connected with crystallizer 5, crystallizer 5's upper portion is connected with outlet pipe 62, be provided with valve 63 on the outlet pipe 62, the one end that crystallizer 5 was kept away from to outlet pipe 62 is connected with boiler 61, make hydroenergy circulate between crystallizer 5 and boiler 61, crystallizer 5 is provided with the intermediate layer, be provided with the water pipe that is regularly arranged in the intermediate layer, water in the boiler 61 passes through inlet tube 64 and reachs the water pipe, the heat of sulfamic acid in crystallizer 5 is walked to the hosepipe, accomplish the cooling, and because water is exothermic slowly, enable the crystallizer temperature to maintain at 10 ℃ -50 ℃ longer time. Specifically, the boiler 61, the water inlet pipe 64, the circulating pump 65, the water pipe and the water outlet pipe 62 are used for completing the circulation of water, so that the water can take away the heat of sulfamic acid in the crystallization tank 5, and the aim of cooling is fulfilled.

In order to collect the sulfamic acid crystallization, the utility model discloses be provided with filter 9 in the bottom of crystallizer 5, filter 9 only allows liquid to get into, and the sulfamic acid crystal then can not get into filter 9, and the top of filter 9 is connected with drinking-water pipe 91, and the one end that filter 9 was kept away from to drinking-water pipe 91 is connected with second water pump 92, and second water pump 92 will be extracted through the sulfamic acid solution after filter 9 filters out, stays the sulfamic acid crystal in crystallizer 5. And boiler 61 can still have the water of excess temperature in the stage of collecting the heating, makes cooling system 6's cooling function become the intensification function, and the temperature of crystallizer 5 risees, can evaporate unnecessary moisture in crystallizer 5, makes things convenient for the workman to collect comparatively dry sulfamic acid crystal to seted up discharge gate 52 in the crystallizer bottom, the workman collects discharge gate 52 department with the instrument sulfamic acid crystal in the crystallizer, and discharges sulfamic acid crystal through discharge gate 52.

In order to keep the closure of crystallizer 5, prevent that debris from getting into crystallizer 5, the utility model discloses be provided with fixed closing cap 7 and the activity closing cap 8 adjacent with fixed closing cap 7 on crystallizer 5's upper portion, fixed closing cap 7 covers crystallizer 5 upper portion with activity closing cap 8 jointly, the two each closing cap 5 mouth is half, fixed closing cap 7 and activity closing cap 8 are all fixed with crystallizer 5 through the bolt, fixed closing cap 7 is owing to there is drinking-water pipe 91 to pass, so fixed closing cap 7 can not be taken off, be provided with handle 81 on the activity closing cap 8, conveniently take off activity closing cap 8 from crystallizer 5, make the workman can stretch into crystallizer 5 with the instrument and collect the sulfamic acid crystal.

In order to make the filter head 9 play a role of filtration, the filter head 9 comprises a support 94 playing a role of support and a fine filter screen 93 coated on the support 94, the support 94 is fixed on the water suction pipe 91, and the fine filter screen 93 plays a role of filtration, so that sulfamic acid crystals are left in the crystallization tank 5.

In order to accelerate the redissolution of sulfamic acid crystals in the heating tank 1, a plurality of impellers 11 are arranged in the heating tank 1, the impellers 11 are regularly arranged in the vertical direction, namely, the impellers 11 are arranged at intervals, a motor at the top of the heating tank 1 drives the impellers 11 to be stirred together, the sulfamic acid crystals are accelerated to be dissolved, and the concentrations of the sulfamic acid solution at the upper part and the lower part in the heating tank 1 are the same.

In order to ensure the air pressure balance in the heating tank 1, prevent that the sulfamic acid solution in the heating tank 1 is not easy to add the collected diluted sulfamic acid solution when the air pressure is too high, or the sulfamic acid solution in the heating pipe is not easy to enter the crystallizing tank 5 when the air pressure is too low, an air pressure balancing device 2 is arranged on the upper part of the heating tank 1, the air pressure balancing device 2 comprises a purifying box 21, the purifying box 21 prevents substances from entering the heating tank from an air outlet in the heating process, so that the impurities in the sulfamic acid solution become more, activated carbon is arranged in the purifying box 21, the activated carbon has adsorbability and can adsorb dust particles and the like, the air outlet 22 is arranged on the upper part of the purifying box 21, so that the air pressure in the heating tank 1 is the same as the external atmosphere, and the crystallizing tank 5 and the device for adding the diluted sulfamic acid solution into the heating tank 1 are communicated with the external atmosphere.

In order to achieve the filtering effect, a plurality of layers of filter screens are also arranged in the filter element 4, impurities in the heating tank 1 are filtered, and the pure sulfamic acid solution enters the crystallizing tank 5, so that high-purity sulfamic acid crystals are obtained.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a sulfamic acid recrystallization device, includes the heating jar, heating jar sub-unit connection has a first water pump that is used for carrying solution, the one end that the heating jar was kept away from to first water pump is connected with the filter core, the one end that first water pump was kept away from to the filter core is connected with the crystallizer, a serial communication port, still includes cooling system, cooling system includes a plurality of water pipes that are used for adjusting the crystallizer temperature and the boiler that is used for the water storage, the sub-unit connection of boiler has the inlet tube, be provided with the circulating pump that makes water pipe hydrologic cycle on the inlet tube, the one end that the boiler was kept away from to the inlet tube is connected with the crystallizer, the upper portion of crystallizer is connected with the outlet pipe, be provided with the valve on the outlet pipe, the one end that the crystallizer was kept away from to the outlet pipe is connected with the boiler, the crystallizer is provided with the intermediate layer, be provided with the water pipe that is regularly arranged in the intermediate layer, the bottom of crystallizer is provided with the filter head, the top of filter head is connected with the drinking-water pipe, the one end that the filter head was kept away from to the drinking-water pipe is connected with the second water pump and is connected with the second water pump.

2. The sulfamic acid recrystallization device according to claim 1, wherein the upper part of the crystallization tank is provided with a fixed seal cover and a movable seal cover adjacent to the fixed seal cover, and the movable seal cover is provided with a handle.

3. The sulfamic acid recrystallization apparatus according to claim 1, wherein the filter head comprises a support frame and a fine filter screen coated on the support frame.

4. The sulfamic acid recrystallization device according to claim 1, wherein a plurality of impellers are arranged in the heating tank, and the impellers are regularly arranged in the vertical direction.

5. The sulfamic acid recrystallization device according to claim 1, wherein the upper part of the heating tank is provided with an air pressure balancing device, the air pressure balancing device comprises a purifying box, activated carbon is filled in the purifying box, and the upper part of the purifying box is provided with an air outlet.