Crystallization Heater for Ammonium Sulfate Crystal Processing

Abstract

The present invention discloses a crystallization heater for ammonium sulfate crystal processing, which comprises a cylinder body, and a cylinder head is arranged at the top of the cylinder body. First, a heating cylinder is connected and arranged below the cylinder body, and then a lower pipe cylinder is arranged below the heating cylinder. A lower partition board is arranged inside the lower pipe cylinder. Steam is introduced into the heating cylinder through the flash evaporation air inlet. When heating the steam, the electric heating pipe can be turned on at the same time to evaporate and crystallize the ammonium sulfate in the liquid inlet pipe. Since the liquid outlet pipe is located on the other side of the upper partition board, after the ammonium sulfate flows into the lower pipe cylinder from the liquid inlet, it will flow upward along the liquid inlet pipe and then enter the cylinder body. When the ammonium sulfate passes through the liquid inlet pipe, steam is introduced into the flash evaporation air inlet, and at the same time the electric heating pipe is turned on. When the steam contacts the liquid inlet pipe, the temperature of the ammonium sulfate in the liquid inlet pipe will rise. After the temperature of the ammonium sulfate rises, the purpose of evaporation and crystallization can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of processing ammonium sulfate crystals, and in particular to a crystallization heater for processing ammonium sulfate crystals. Background Art

[0002] The utility model with publication number CN203736892U discloses a combined structure of an ammonium sulfate heater and a crystallization device for ammonia-based desulfurization of sintering flue gas. The structure is that a circulating liquid outlet, a circulating liquid inlet, an ammonium sulfate liquid inlet, a cleaning liquid outlet, a crystallization liquid outlet and a steam outlet are provided on a crystallizer shell, a circulating drum is installed in the crystallizer shell, the ammonium sulfate heater is provided with a steam inlet and a condensate outlet, the liquid inlet end of the ammonium sulfate heater is connected to the circulating liquid outlet on the crystallizer shell through a pipeline, and the liquid outlet end of the ammonium sulfate heater is inserted from the circulating liquid inlet on the crystallizer shell through another pipeline and connected to a vortex ejector, and the vortex ejector is fixed on the circulating drum. The above utility model combines the ammonium sulfate heater and the crystallizer into a whole, and a vortex ejector is used to replace the original agitator in the process-stabilizing crystallizer, thereby reducing energy consumption. However, the utilization rate of energy consumption during use is low, and the efficiency of secondary circulation is not high. Summary of the invention

[0003] The object of the present invention is to provide a crystallization heater for processing ammonium sulfate crystals to solve the above-mentioned background problems.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A crystallization heater for processing ammonium sulfate crystals, comprising a cylinder, a heating cylinder is connected to the bottom of the cylinder, a lower tube is arranged below the heating cylinder, a tube head is arranged on the top of the cylinder, a circulating liquid inlet is opened below the lower tube, a circulating liquid outlet is opened on one side of the lower tube, and a lower baffle is arranged inside the lower tube;

[0006] The end of the heating cylinder connected to the cylinder body is provided with a top plate, the end of the heating cylinder connected to the lower tube is provided with a bottom plate, a plurality of suspensions are provided in the heating cylinder, a plurality of electric heating tubes are provided between the suspensions, a liquid inlet pipe and a liquid outlet pipe are provided between the top plate and the bottom plate, and a flash evaporation air inlet is provided on one side of the heating cylinder;

[0007] An upper partition is arranged above the top plate and inside the cylinder.

[0008] As a further solution of the present invention: a gauze is arranged above the cylinder and inside the cylinder head, a secondary steam outlet is opened on one side of the cylinder head, and a secondary steam inlet is arranged on one side of the heating cylinder and above the flash evaporation air inlet.

[0009] As a further solution of the present invention: a reflux pipe is provided at the top of the cylinder body and inside the cylinder head.

[0010] As a further solution of the present invention: stiffening plates are symmetrically arranged at the top of the cylinder body, and a baffle is arranged between the two stiffening plates.

[0011] As a further solution of the present invention: a condensate outlet is provided below one side of the heating cylinder, and non-condensable gas outlets are symmetrically arranged on the other side of the heating cylinder.

[0012] As a further solution of the present invention: a liquid outlet is provided below one side of the lower tube cylinder and below the circulating liquid outlet, and a liquid inlet is provided on the other side of the lower tube cylinder.

[0013] As a further solution of the present invention: a pressure gauge interface, a liquid level gauge interface and a sight glass are provided on the side of the cylinder body, and a temperature measurement interface is provided below one side of the cylinder body.

[0014] As a further solution of the present invention: a plurality of ear seats are arranged in a circular array on the sides of the cylinder body and the heating cylinder.

[0015] The beneficial effects of the present invention:

[0016] (1) In the present invention, a plurality of suspensions are arranged in the heating cylinder, and a plurality of electric heating tubes are arranged between the plurality of suspensions. Secondly, an upper partition is arranged above the top plate and inside the cylinder body. Then, a liquid inlet pipe and a liquid outlet pipe are arranged between the top plate and the bottom plate. The liquid inlet pipe and the liquid outlet pipe are respectively located on both sides of the upper partition. In addition, a flash evaporation air inlet is arranged on one side of the heating cylinder. When crystallizing ammonium sulfate crystals, the ammonium sulfate liquid enters through the liquid inlet pipe, and at the same time, water vapor is introduced into the interior of the heating cylinder through the flash evaporation air inlet. At the same time, when heating the water vapor, the electric heating tubes can be turned on simultaneously to evaporate and crystallize the ammonium sulfate in the liquid inlet pipe. At the same time, since the liquid outlet pipe is located on the other side of the upper partition, when the ammonium sulfate flows from the liquid inlet into the lower tube cylinder, it will flow upward along the liquid inlet pipe and then enter the cylinder body. When the ammonium sulfate passes through the liquid inlet pipe, water vapor is introduced into the flash evaporation air inlet, and at the same time, the electric heating tubes are turned on. When the water vapor contacts the liquid inlet pipe, the temperature of the ammonium sulfate in the liquid inlet pipe will rise. When the temperature of the ammonium sulfate rises, the purpose of evaporation and crystallization can be achieved. At the same time, when the water vapor initially contacts the liquid inlet pipe, liquefaction will occur, and at this time, liquid water is generated, and the liquid water will flow out from the condensate outlet.

[0017] (2) In the present invention, the water vapor evaporated from ammonium sulfate will rise and flow out through the secondary steam outlet on one side of the barrel head. To ensure the fluidity of the water vapor and the effect of secondary utilization, the secondary steam outlet is connected to the secondary steam inlet. At this time, the water vapor will be introduced into the heating barrel. Since the water vapor flowing in from the secondary steam inlet may be at a relatively low temperature, the electric heating tube will continue to heat to ensure the utilization of the water vapor flowing in from the secondary steam inlet. At the same time, if the water vapor flowing in from the secondary steam inlet forms liquid water while heating the liquid inlet pipe, it will also flow out through the condensate outlet. At this time, the electric heating tube will continue to heat to ensure the reuse of the water vapor flowing in from the secondary steam inlet, improving the heat utilization rate of the entire heating process and reducing the production and processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic cross-sectional view of the connection structure between the heating barrel and the lower barrel in the present invention;

[0021] Figure 3 is a schematic cross-sectional view of a partial structure of the barrel in the present invention.

[0022] In the figure: 1, barrel; 10, ear seat; 11, pressure gauge interface; 12, liquid level gauge interface; 13, sight glass; 14, temperature measurement interface; 15, upper partition; 2, baffle; 21, rib plate; 3, barrel head; 30, screen; 31, secondary steam outlet; 32, return pipe; 4, heating barrel; 41, top plate; 42, bottom plate; 43, electric heating tube; 44, liquid outlet pipe; 45, flash steam inlet; 46, secondary steam inlet; 47, non-condensable gas outlet; 48, liquid inlet pipe; 49, condensate outlet; 410, suspension; 5, lower barrel; 50, liquid inlet; 51, circulating liquid inlet; 52, lower partition; 53, circulating liquid outlet; 54, liquid outlet. SPECIFIC EMBODIMENTS

[0023] The technical solutions 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 - Figure 3As shown in the figure, the present invention is a crystallization heater for ammonium sulfate crystal processing, including a cylinder body 1, and a cylinder head 3 is arranged at the top of the cylinder body 1. First, a heating cylinder 4 is connected and arranged below the cylinder body 1, then a lower pipe cylinder 5 is arranged below the heating cylinder 4, and then a circulating liquid inlet 51 is opened below the lower pipe cylinder 5. At the same time, a circulating liquid outlet 53 is opened on one side of the lower pipe cylinder 5. In addition, a lower partition 52 is arranged inside the lower pipe cylinder 5;

[0025] Specifically, a top plate 41 is arranged at one end of the heating cylinder 4 connected to the cylinder body 1, and a bottom plate 42 is arranged at one end of the heating cylinder 4 connected to the lower pipe cylinder 5, that is, the top plate 41, the bottom plate 42 and the heating cylinder 4 form a sealed structure. Then, a number of suspension frames 410 are arranged inside the heating cylinder 4, and a number of electric heating tubes 43 are arranged between the suspension frames 410. Secondly, an upper partition 15 is arranged above the top plate 41 and inside the cylinder body 1, and a liquid inlet pipe 48 and a liquid outlet pipe 44 are arranged between the top plate 41 and the bottom plate 42. The liquid inlet pipe 48 and the liquid outlet pipe 44 are respectively located on both sides of the upper partition 15. In addition, a flash evaporation air inlet 45 is arranged on one side of the heating cylinder 4. When crystallizing ammonium sulfate crystals, ammonium sulfate liquid enters through the liquid inlet pipe 48, and at the same time, water vapor is introduced into the interior of the heating cylinder 4 through the flash evaporation air inlet 45. At the same time, when heating the water vapor, the electric heating tubes 43 can be turned on simultaneously to evaporate and crystallize the ammonium sulfate in the liquid inlet pipe 48. At the same time, since the liquid outlet pipe 44 is located on the other side of the upper partition 15, when ammonium sulfate flows from the liquid inlet 50 into the lower pipe cylinder 5, it will flow upward along the liquid inlet pipe 48 and then enter the cylinder body 1. When ammonium sulfate passes through the liquid inlet pipe 48, water vapor is introduced into the flash evaporation air inlet 45, and at the same time, the electric heating tubes 43 are turned on. When the water vapor contacts the liquid inlet pipe 48, the temperature of the ammonium sulfate in the liquid inlet pipe 48 will rise. After the temperature of the ammonium sulfate rises, the purpose of evaporation and crystallization can be achieved. At the same time, when the water vapor initially contacts the liquid inlet pipe 48, liquefaction will occur, and at this time, liquid water is generated, and the liquid water will flow out from the condensate outlet 49;

[0026] In addition, after ammonium sulfate enters the side of the upper partition plate 15 in the cylinder body 1 through the liquid inlet pipe 48, it will gradually accumulate. At the same time, its temperature continuously rises and evaporates, slowly precipitating crystals. At this time, the water vapor evaporated from ammonium sulfate will rise and flow out through the secondary steam outlet 31 on one side of the cylinder head 3. To ensure the fluidity of the water vapor and the effect of secondary utilization, the secondary steam outlet 31 is connected to the secondary steam inlet 46. Then, the water vapor at this time will be introduced into the heating cylinder 4. Since the water vapor flowing in from the secondary steam inlet 46 may be at a relatively low temperature, the electric heating tube 43 will continue to heat to ensure the utilization of the water vapor flowing in from the secondary steam inlet 46. At the same time, if the water vapor flowing in from the secondary steam inlet 46 forms liquid water while heating the liquid inlet pipe 48, it will also flow out through the condensate outlet 49;

[0027] While heating and evaporating ammonium sulfate, since the heating cylinder 4 is in a sealed state, to ensure the stability of the pressure inside the heating cylinder 4, two non-condensable gas outlets 47 are provided to adjust the pressure of the steam inside the heating cylinder 4;

[0028] When ammonium sulfate accumulates more and more on one side of the upper partition plate 15 in the cylinder body 1, its height will gradually exceed the height of the upper partition plate 15. At this time, ammonium sulfate will slowly flow downward through the liquid outlet pipe 44 on the other side of the upper partition plate 15. At this time, the ammonium sulfate passing through the liquid outlet pipe 44 will be heated again. After ammonium sulfate enters the inside of the lower cylinder 5, the ammonium sulfate with a higher degree of crystallinity sinks to one side of the lower partition plate 52 in the lower cylinder 5. At this time, the ammonium sulfate with a higher degree of crystallinity can be discharged, and the ammonium sulfate with a lower degree of crystallinity flows out through the circulating liquid outlet 53 and then flows in through the circulating liquid inlet 51 for circulating crystallization heating, so as to obtain a better crystallization effect of ammonium sulfate.

[0029] Specifically, a wire mesh 30 is arranged above the cylinder body 1 and inside the cylinder head 3. Then, a secondary steam outlet 31 is opened on one side of the cylinder head 3. A secondary steam inlet 46 is arranged above the flash steam inlet 45 on one side of the heating cylinder 4. The secondary steam outlet 31 is connected to the secondary steam inlet 46. At this time, the water vapor will flow into the heating cylinder 4. Since the water vapor flowing in from the secondary steam inlet 46 may have a relatively low temperature, the electric heating tube 43 will continue to heat, ensuring that the water vapor flowing in from the secondary steam inlet 46 is reused, improving the heat utilization rate of the entire heating process and reducing the production and processing cost. In addition, a return pipe 32 is arranged at the top of the cylinder body 1 and inside the cylinder head 3. When ammonium sulfate crystals evaporate water vapor, in order to prevent the flowing water vapor from carrying trace amounts of ammonium sulfate, a wire mesh 30 is set. The wire mesh 30 is made of a material with high filtration performance and can filter the flowing water vapor. At the same time, when the water vapor contacts the wire mesh 30, liquid water will also be formed, and the liquid water will flow back into the cylinder body 1 through the return pipe 32 and continue to evaporate.

[0030] Secondly, two rib plates 21 are symmetrically arranged at the top of the cylinder body 1. A baffle 2 is arranged between the two rib plates 21. On the one hand, the baffle 2 is used to disperse the ammonium sulfate filtered out by the wire mesh 30, so that it falls into the ammonium sulfate at the bottom of the cylinder body 1 from the four sides of the baffle 2. On the other hand, it avoids the direct evaporation and flow of water vapor, reduces the flow rate of water vapor, and increases the heating time of ammonium sulfate in the cylinder body 1.

[0031] Refer to Figure 2 As shown, a condensate outlet 49 is arranged below one side of the heating cylinder 4, and non-condensable gas outlets 47 are symmetrically arranged on the other side of the heating cylinder 4. The condensate outlet 49 is used to discharge the liquefied water, and the non-condensable gas outlets 47 are used to ensure the pressure inside the heating cylinder 4.

[0032] Refer to Figure 3 As shown, a liquid outlet 54 is arranged below the circulation liquid outlet 53 on one side of the lower tube cylinder 5, which is used to discharge ammonium sulfate with high cleanliness. A liquid inlet 50 is arranged on the other side of the lower tube cylinder 5, which is used to connect the initial ammonium sulfate liquid. The liquid outlet 54 and the liquid inlet 50 are respectively located on both sides of the lower partition 52.

[0033] Refer to Figure 1 As shown, a pressure gauge interface 11, a liquid level gauge interface 12 and a sight glass 13 are arranged on the side of the cylinder body 1. The pressure gauge interface 11 is used to connect a pressure gauge to monitor the pressure inside the cylinder body 1. The liquid level gauge interface 12 is used to connect a liquid level gauge to detect the height of the ammonium sulfate liquid inside the cylinder body 1. The sight glass 13 is for the convenience of workers to observe in real time. Secondly, a temperature measuring interface 14 is also arranged below one side of the cylinder body 1, which is used to connect a thermometer to facilitate the measurement of the temperature of the ammonium sulfate liquid inside the cylinder body 1.

[0034] Finally, a plurality of lugs 10 are arranged in a circular array on the sides of the cylinder body 1 and the heating cylinder 4 to ensure the installation and fixation of the entire device.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. Crystallization heater for ammonium sulfate crystal processing, comprising a cylinder body (1), a heating cylinder (4) is connected and arranged below the cylinder body (1), a lower pipe cylinder (5) is arranged below the heating cylinder (4), and a cylinder head (3) is arranged at the top of the cylinder body (1), characterized in that, A circulation liquid inlet (51) is provided below the lower tube barrel (5), a circulation liquid outlet (53) is provided on one side of the lower tube barrel (5), and a lower partition plate (52) is arranged inside the lower tube barrel (5); One end of the heating barrel (4) connected to the barrel body (1) is provided with a top plate (41), one end of the heating barrel (4) connected to the lower tube barrel (5) is provided with a bottom plate (42), a plurality of suspension frames (410) are arranged inside the heating barrel (4), a plurality of electric heating tubes (43) are arranged between the plurality of suspension frames (410), a liquid inlet pipeline (48) and a liquid outlet pipeline (44) are arranged between the top plate (41) and the bottom plate (42), and a flash steam inlet (45) is provided on one side of the heating barrel (4); Above the top plate (41) and inside the barrel body (1), an upper partition plate (15) is arranged, and the liquid inlet pipeline (48) and the liquid outlet pipeline (44) are respectively located on both sides of the upper partition plate (15); On one side of the lower tube barrel (5) and below the circulation liquid outlet (53), a liquid outlet (54) is provided, and on the other side of the lower tube barrel (5), a liquid inlet (50) is provided. The liquid outlet (54) and the liquid inlet (50) are respectively located on both sides of the lower partition plate (52).

2. The crystallization heater for ammonium sulfate crystal processing according to claim 1, wherein Above the barrel body (1) and inside the barrel head (3), a wire mesh (30) is provided. On one side of the barrel head (3), a secondary steam outlet (31) is provided. Above the flash steam inlet (45) on one side of the heating barrel (4), a secondary steam inlet (46) is provided.

3. The crystallization heater for ammonium sulfate crystal processing according to claim 1, wherein, At the top of the barrel body (1) and inside the barrel head (3), a reflux pipe (32) is provided.

4. The crystallization heater for ammonium sulfate crystal processing according to claim 1, wherein At the top of the barrel body (1), reinforcing plates (21) are symmetrically arranged, and a baffle (2) is arranged between the two reinforcing plates (21).

5. The crystallization heater for ammonium sulfate crystal processing according to claim 1, characterized in that, Below one side of the heating barrel (4), a condensate outlet (49) is provided, and non-condensable gas ports (47) are symmetrically arranged on the other side of the heating barrel (4).

6. The crystallization heater for ammonium sulfate crystal processing according to claim 1, characterized in that, On the side of the barrel body (1), a pressure gauge interface (11), a liquid level gauge interface (12) and a sight glass (13) are provided. Below one side of the barrel body (1), a temperature measuring interface (14) is provided.

7. The crystallization heater for ammonium sulfate crystal processing according to claim 1, characterized in that On the sides of the barrel body (1) and the heating barrel (4), a plurality of ear seats (10) are arranged in a circumferential array.

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