Ammonium sulfate mother liquor crystallization tank

Abstract

The utility model discloses an ammonium sulfate mother liquor crystallization tank, and particularly relates to the technical field of ammonium sulfate mother liquor crystallization tanks, which comprises a crystallization tank body, an exhaust mechanism for exhausting is arranged at the top of the crystallization tank body, and a thermometer for detecting the temperature in the crystallization tank body is arranged at the top of the crystallization tank body. The front side of the crystallization tank body is provided with a refractometer for detecting the concentration of ammonium sulfate mother liquor, the bottom of the crystallization tank body is fixedly communicated with a discharging pipe, the top of the crystallization tank body is fixedly communicated with a feeding pipe, and a pipe cap is inserted into the feeding pipe. Water vapor in the crystallization tank body can be timely discharged to the external environment through the feeding pipe, the crystallization tank body is prevented from being damaged due to increase of air pressure, the safety is improved, ammonium sulfate crystals and residual ammonium sulfate mother liquor can be separated through the collecting mechanism, and the production efficiency is improved. And people can conveniently take the ammonium sulfate crystals and treat the residual ammonium sulfate mother liquor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ammonium sulfate mother liquor crystallization tank, specifically to a kind of ammonium sulfate mother liquor crystallization tank. BACKGROUND

[0002] Ammonium sulfate mother liquor crystallization tank is a device used in the process of oil recovery. It is mainly used for the crystallization process of ammonium sulfate. In the by-products produced during the oil refining process, substances containing sulfur compounds can be converted into ammonium sulfate through chemical treatment, and then separated from the mother liquor through the crystallization process. This process usually involves precise control of temperature and concentration to ensure that ammonium sulfate can be crystallized with appropriate size and purity.

[0003] For example, the patent application No. 202110282963.5 provides a crystallization tank that can adjust the solid-liquid ratio of ammonium sulfate mother liquor. The crystallization tank includes a mother liquor inlet pipe, a mother liquor crystallization tank upper barrel, a mother liquor crystallization tank support, a mother liquor crystallization tank lower cone, a mother liquor crystallization tank lower cone shell, and a mother liquor crystallization tank discharge port. The mother liquor crystallization tank upper barrel and the mother liquor crystallization tank lower cone are welded to form a whole. The mother liquor crystallization tank lower cone shell is connected by flange sheets. Two supports are welded on the mother liquor crystallization tank lower cone shell to fix the crystallization tank on the ground. The mother liquor crystallization tank lower cone shell has a mother liquor crystallization tank discharge port at the lower end. The discharge port is connected to the lower cone shell by welding. The mother liquor inlet pipe is provided at the upper end of the mother liquor crystallization tank upper barrel. This can effectively solve the problem of low solid-liquid ratio of ammonium sulfate mother liquor. It can also effectively solve the negative impact of production interruption caused by solid-liquid stratification of ammonium sulfate mother liquor.

[0004] However, the technical solution still has the following problems: in this technical solution, steam is discharged from the crystallization tank through the steam exhaust port. The steam exhaust port needs to be manually removed by the steam exhaust cover. If it cannot be removed in time, the gas pressure inside the crystallization tank will gradually increase, which may cause an explosion. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of ammonium sulfate mother liquor crystallization tank, by feed pipe can the water vapor in the inside of crystallization tank body be discharged to external environment in time, avoid the harm of the increase of gas pressure to crystallization tank body, improve safety, still by collecting mechanism can ammonium sulfate crystal and residual ammonium sulfate mother liquor are separated, it is convenient for people to take ammonium sulfate crystal and handle residual ammonium sulfate mother liquor, to solve the above insufficient in the technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of ammonium sulfate mother liquor crystallization tank, including crystallization tank body, the top of the crystallization tank body is equipped with exhaust mechanism for exhaust, the top of the crystallization tank body is equipped with thermometer for detecting the temperature inside the crystallization tank body, the front side of the crystallization tank body is equipped with refractometer for detecting the concentration of ammonium sulfate mother liquor, the bottom of the crystallization tank body is fixedly connected with discharge pipe, the top of the crystallization tank body is fixedly connected with feed pipe, pipe cap is inserted in the feed pipe, the side of the crystallization tank body is fixedly connected with water outlet pipe, the side of the crystallization tank body away from water outlet pipe is fixedly connected with water inlet pipe, switch valve is fixed on the outside of water outlet pipe, water inlet pipe and discharge pipe, the outside of the crystallization tank body is equipped with protective cover, the inside of the protective cover is equipped with multiple heating pipes, and the inside of the crystallization tank body is located in multiple heating pipes.

[0007] Preferably, the exhaust mechanism includes an exhaust pipe fixedly connected to the top of the crystallization tank body, a piston plate is provided inside the exhaust pipe, two springs are fixedly provided on the top of the piston plate, the top ends of the springs are fixedly connected to the inside of the exhaust pipe, a connecting rod is fixedly provided on the top of the piston plate, the top end of the connecting rod penetrates through the exhaust pipe and extends out of the top of the exhaust pipe, a connecting plate is fixedly provided on the top end of the connecting rod, and a plurality of air holes are formed in the top of the exhaust pipe for exhaust.

[0008] Preferably, the bottom of the crystallization tank body is provided with a collecting mechanism for collecting crystals, the collecting mechanism includes a collecting cylinder arranged at the bottom of the crystallization tank body, a placing plate is fixedly arranged inside the collecting cylinder, a sieve plate is arranged on the top of the placing plate, first handles are arranged on both sides of the top of the sieve plate, and second handles are arranged on both sides of the outside of the collecting cylinder for collecting ammonium sulfate crystals.

[0009] In the above technical scheme, the utility model provides the technical effect and advantage:

[0010] 1. In the process of heating and crystallizing ammonium sulfate mother liquor, water vapor is evaporated from the ammonium sulfate mother liquor, which increases the air pressure inside the crystallization tank body, and the water vapor can push the piston plate, which moves upward, and the piston plate is moved to the top end of the exhaust pipe, so that the water vapor inside the crystallization tank body can be discharged to the outside environment through the air holes, avoiding the harm caused by the increase of air pressure in the crystallization tank body and improving the safety.

[0011] 2. Open the switch valve outside the discharge pipe, the remaining ammonium sulfate mother liquor and the generated ammonium sulfate crystals in the crystallization tank body flow into the collecting cylinder through the discharge pipe, and the sieve plate in the collecting cylinder can separate the ammonium sulfate crystals and the remaining ammonium sulfate mother liquor, which is convenient for people to take the ammonium sulfate crystals and process the remaining ammonium sulfate mother liquor. DRAWINGS

[0012] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0013] Figure 1 It is a front view of the present application.

[0014] Figure 2 It is a rear view of the present application.

[0015] Figure 3 It is a structural schematic view of the protective cover and the heating pipe of the present application.

[0016] Figure 4 It is a sectional view of the crystallization tank body of the present application.

[0017] Figure 5 It is a structural schematic view of the exhaust mechanism of the present application.

[0018] Figure 6 It is a structural schematic view of the collecting mechanism of the present application.

[0019] Explanation of reference signs:

[0020] 1 crystallization tank body;

[0021] 2 exhaust mechanism, 201 exhaust pipe, 202 piston plate, 203 spring, 204 connecting rod, 205 connecting plate, 206 air hole;

[0022] 3 thermometer, 4 refractometer;

[0023] 5 collecting mechanism, 501 collecting cylinder, 502 placing plate, 503 leakage plate, 504 first handle, 505 second handle;

[0024] 6 feeding pipe, 7 pipe cap, 8 water outlet pipe, 9 water inlet pipe, 10 discharge pipe, 11 protective cover, 12 heating pipe. DETAILED DESCRIPTION

[0025] In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail in combination with the drawings.

[0026] The present application provides a crystallization tank Figures 1-6As shown in one kind of ammonium sulfate mother liquor crystallization tank, including crystallization tank body 1, the top of the crystallization tank body 1 is provided with exhaust mechanism 2 for exhaust, the top of the crystallization tank body 1 is provided with thermometer 3 for detecting the temperature inside the crystallization tank body 1, the front side of the crystallization tank body 1 is provided with refractometer 4 for detecting the concentration of ammonium sulfate mother liquor, the bottom of the crystallization tank body 1 is fixedly connected with discharge pipe 10, the top of the crystallization tank body 1 is fixedly connected with feed pipe 6, the inside of the feed pipe 6 is inserted with pipe cap 7, one side of the crystallization tank body 1 is fixedly connected with water outlet pipe 8, the side of the crystallization tank body 1 away from the water outlet pipe 8 is fixedly connected with water inlet pipe 9, the outside of the water outlet pipe 8, water inlet pipe 9 and discharge pipe 10 is fixedly connected with switch valve, the outside of the crystallization tank body 1 is provided with protective cover 11, the inside of the protective cover 11 is provided with a plurality of heating pipes 12, the inside of the crystallization tank body 1 is located in the plurality of heating pipes 12;

[0027] The pipe cap 7 is taken out from the inside of the feed pipe 6, the ammonium sulfate mother liquor is poured into the inside of the crystallization tank body 1, and then the heating pipe 12 is started. The heating pipe 12 heats the ammonium sulfate mother liquor. The ammonium sulfate mother liquor evaporates part of the water by heating. The ammonium sulfate mother liquor becomes supersaturated, which promotes the precipitation of ammonium sulfate in the form of crystals. The ammonium sulfate crystals then grow in the crystallization tank body 1 by cooling or further evaporating water. The temperature and concentration of the ammonium sulfate mother liquor inside the crystallization tank body 1 are detected by the thermometer 3 and the refractometer 4 to optimize the crystallization process and ensure that ammonium sulfate crystals of the required size and purity are obtained.

[0028] As shown in the Figure 5 The exhaust mechanism 2 includes an exhaust pipe 201 fixedly connected to the top of the crystallization tank body 1, the inside of the exhaust pipe 201 is provided with a piston plate 202, the top of the piston plate 202 is fixedly provided with two springs 203, the top end of the spring 203 is fixedly connected to the inside of the exhaust pipe 201, the top of the piston plate 202 is fixedly provided with a connecting rod 204, the top end of the connecting rod 204 penetrates the exhaust pipe 201 and extends out of the top of the exhaust pipe 201, the top end of the connecting rod 204 is fixedly provided with a connecting plate 205, a plurality of air holes 206 are formed in the top of the exhaust pipe 201;

[0029] During the heating and crystallization of the ammonium sulfate mother liquor, the ammonium sulfate mother liquor will evaporate water vapor, increasing the air pressure inside the crystallization tank body 1. The water vapor can push the piston plate 202, which moves upward. The piston plate 202 is moved to the top end of the exhaust pipe 201, so that the water vapor inside the crystallization tank body 1 can be discharged to the outside environment through the air holes 206, avoiding the harm of the increase of air pressure in the crystallization tank body 1 and improving the safety;

[0030] When the air pressure inside the crystallization tank body 1 is reduced, the piston plate 202 is not subjected to the thrust force, and the spring 203 on the top of the piston plate 202 pushes the piston plate 202 downward according to the elasticity of the spring 203, thereby shielding the air vent 206, ensuring the temperature inside the crystallization tank body 1, and facilitating the exhaust of the next time.

[0031] As shown in Figure 6 The bottom of the crystallization tank body 1 is provided with a collecting mechanism 5 for collecting the crystals, and the collecting mechanism 5 comprises a collecting cylinder 501 arranged at the bottom of the crystallization tank body 1, a placing plate 502 fixedly arranged inside the collecting cylinder 501, a leakage plate 503 arranged at the top of the placing plate 502, first handles 504 arranged at the top of the leakage plate 503 on both sides, and second handles 505 arranged at the outside of the collecting cylinder 501 on both sides.

[0032] The switch valve outside the discharge pipe 10 is opened, the remaining ammonium sulfate mother liquor and the generated ammonium sulfate crystals inside the crystallization tank body 1 flow into the inside of the collecting cylinder 501 through the discharge pipe 10, the leakage plate 503 inside the collecting cylinder 501 can separate the ammonium sulfate crystals and the remaining ammonium sulfate mother liquor, the leakage plate 503 can be taken out from the inside of the collecting cylinder 501 through the first handles 504, so as to facilitate people to take the ammonium sulfate crystals, and the collecting cylinder 501 can be moved through the second handles 505, so as to facilitate people to handle the remaining ammonium sulfate mother liquor.

[0033] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that the ordinary skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. An ammonium sulphate mother liquor crystallization tank comprising a crystallization tank body (1), characterized in that: The crystallization tank body (1) top is provided with exhaust mechanism (2) for exhaust, the crystallization tank body (1) top is provided with temperature gauge (3) for detecting the temperature inside the crystallization tank body (1), the crystallization tank body (1) front side is provided with refractometer (4) for detecting the concentration of ammonium sulfate mother liquor, the crystallization tank body (1) bottom is fixedly connected with discharge pipe (10); The exhaust mechanism (2) includes exhaust pipe (201) fixedly connected with the top of the crystallization tank body (1), the exhaust pipe (201) is internally provided with a piston plate (202), the piston plate (202) top is fixedly provided with two springs (203), the spring (203) top end is fixedly connected with the inside of the exhaust pipe (201), the piston plate (202) top is fixedly provided with a connecting rod (204), the connecting rod (204) top end penetrates the exhaust pipe (201) and extends out of the top of the exhaust pipe (201), the connecting rod (204) top end is fixedly provided with a connecting plate (205), the exhaust pipe (201) top is provided with a plurality of air holes (206); The crystallization tank body (1) bottom is provided with collecting mechanism (5) for collecting crystallization.

2. The ammonium sulphate mother liquor crystallization tank according to claim 1, characterized in that: The collecting mechanism (5) includes a collecting cylinder (501) disposed at the bottom of the crystallization tank body (1), the collecting cylinder (501) is internally fixedly provided with a placing plate (502), the placing plate (502) top is provided with a sieve plate (503), the sieve plate (503) top is provided with a first handle (504) on both sides, the collecting cylinder (501) is externally provided with a second handle (505) on both sides.

3. The ammonium sulphate mother liquor crystallization tank according to claim 1, characterized in that: The crystallization tank body (1) top is fixedly connected with a feed pipe (6), the feed pipe (6) is internally inserted with a pipe cap (7).

4. The ammonium sulphate mother liquor crystallization tank according to claim 1, characterized in that: The crystallization tank body (1) side is fixedly connected with a water outlet pipe (8), the crystallization tank body (1) side away from the water outlet pipe (8) is fixedly connected with a water inlet pipe (9).

5. The ammonium sulphate mother liquor crystallization tank according to claim 4, characterized in that: The water outlet pipe (8), water inlet pipe (9) and discharge pipe (10) are externally fixed with on-off valves.

6. The ammonium sulphate mother liquor crystallization tank according to claim 1, characterized in that: The crystallization tank body (1) is externally provided with a protective cover (11), the protective cover (11) is internally provided with a plurality of heating pipes (12), the crystallization tank body (1) is located inside the plurality of heating pipes (12).

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