Device for protecting ammonium sulfate fan

Abstract

The utility model discloses a device for protecting an ammonium sulfate fan, which belongs to the technical field of thiamine preparation waste gas treatment and comprises a fan body, one side of an air inlet of the fan body is communicated with an absorption tower positioned on one side of the fan body through an exhaust pipe, absorption liquid is accommodated in the absorption tower, and the bottom of the absorption tower is communicated with a liquid inlet pipe through a sealing mechanism. The bottom of the side wall of the absorption tower is communicated with an air inlet pipe through an air inlet one-way valve, the upper portion of the side wall of the absorption tower is communicated with a liquid outlet pipe through a liquid outlet one-way valve, and the end, away from the liquid outlet one-way valve, of the liquid outlet pipe is fixedly communicated with a liquid outlet pump. And the liquid level of the absorption liquid is lower than that of the capacitive liquid level switch. Ammonium sulfate powder in the waste gas can be absorbed while the ammonium sulfate waste gas is cooled, and the service life of the fan body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment in ammonium sulfate preparation, and particularly relates to a device for protecting an ammonium sulfate fan. Background Art

[0002] Ammonium sulfate generally refers to ammonium sulfate. Ammonium sulfate is an inorganic substance with the chemical formula (NH4)2SO4, which is colorless crystalline or white granules and odorless. It decomposes above 280°C. Solubility in water: 70.6 g at 0°C and 103.8 g at 100°C. It is insoluble in ethanol and acetone. The pH of a 0.1 mol / L aqueous solution is 5.5. The relative density is 1.77. The refractive index is 1.521. Ammonium sulfate is mainly used as a fertilizer and is suitable for various soils and crops. It can also be used in textiles, leather, medicine and other aspects.

[0003] Industrially, artificial gas is generally used to produce ammonium sulfate. However, a large amount of waste gas is generated during the preparation of ammonium sulfate. The temperature and water content of the waste gas are too high, and the waste gas contains ammonium sulfate dust. In order to prevent the waste gas from being directly discharged into the atmosphere and polluting the environment, the waste gas needs to be discharged into the waste gas treatment device through a fan for harmless treatment.

[0004] However, when the waste gas passes through the fan, the water vapor in the waste gas will adhere to the surface of the fan impeller and condense into water droplets, making the surface of the fan impeller wet. At the same time, the ammonium sulfate dust in the waste gas will adhere to the surface of the fan impeller, resulting in unbalanced operation and excessive vibration of the fan impeller, and shortening the service life of the fan. Content of the Utility Model

[0005] In order to solve the problem that the water vapor and ammonium sulfate dust in the waste gas in the prior art adhere to the surface of the fan impeller, resulting in unbalanced operation and excessive vibration of the fan impeller, and shortening the service life of the fan, the utility model provides a device for protecting an ammonium sulfate fan, which can cool the waste gas and remove the ammonium sulfate dust in the waste gas before the waste gas enters the fan, thereby extending the service life of the fan.

[0006] The technical solution adopted by the device for protecting an ammonium sulfate fan of the utility model is as follows:

[0007] A device for protecting an ammonium sulfate fan includes a fan body. One side of the air inlet of the fan body is connected to an absorption tower located on one side of the fan body through a suction pipe. An absorption liquid is contained in the absorption tower. The bottom of the absorption tower is connected to a liquid inlet pipe through a closing mechanism. The bottom of the side wall of the absorption tower is connected to an air inlet pipe through an air inlet check valve. The upper part of the side wall of the absorption tower is connected to a liquid outlet pipe through a liquid outlet check valve. One end of the liquid outlet pipe far away from the liquid outlet check valve is fixedly connected to a liquid outlet pump. A capacitive liquid level switch for controlling the liquid outlet pump is arranged on the upper part of the inner wall of the absorption tower, and the liquid level height of the absorption liquid is lower than the height of the capacitive liquid level switch.

[0008] A further improvement of the technical solution of the present utility model lies in that: the fan body is arranged on the ground through a mounting seat, and the absorption tower is arranged on the ground through a plurality of support legs vertically arranged at the bottom.

[0009] A further improvement of the above technical solution of the present utility model lies in that: one end of the air extraction pipe far from the fan body is communicated with the top of the absorption tower.

[0010] A further improvement of the above technical solution of the present utility model lies in that: a liquid inlet hole closed by a closing mechanism is opened at the bottom of the absorption tower corresponding to the position of the liquid inlet pipe, and the position of the liquid inlet pipe far from the absorption tower is communicated with an external absorption liquid source through a liquid inlet pump.

[0011] A further improvement of the technical solution of the present utility model lies in that: the closing mechanism includes a closing block in the shape of a boss for closing the liquid inlet hole, and both sides of the closing block are respectively connected with the inner wall of the absorption tower through a moving mechanism.

[0012] A further improvement of the above technical solution of the present utility model lies in that: the moving mechanism includes connecting plates horizontally fixed on both sides of the closing block, and fixing plates horizontally fixedly connected with the inner wall of the absorption tower and located above the connecting plates; wherein, a vertical spring rod is fixedly connected between the fixing plate and the corresponding connecting plate.

[0013] A further improvement of the above technical solution of the present utility model lies in that: the intake direction of the intake one-way valve is that the ammonium sulfate waste gas flows from the intake pipe to the absorption tower.

[0014] A further improvement of the above technical solution of the present utility model lies in that: the liquid outlet direction of the liquid outlet one-way valve is that the absorption liquid flows from the absorption tower to the liquid outlet pipe.

[0015] A further improvement of the technical solution of the present utility model lies in that: an air outlet hole is opened at the position of the absorption tower corresponding to the air extraction pipe, an air inlet hole is opened at the side wall of the absorption tower corresponding to the intake one-way valve, and a liquid outlet hole is opened at the side wall of the absorption tower corresponding to the liquid outlet one-way valve.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model includes:

[0017] Through the provided absorption tower, the present utility model can cool the waste gas through the absorption tower before the waste gas enters the fan body, and simultaneously absorb the ammonium sulfate powder in the waste gas. Thus, when the waste gas after passing through the absorption tower enters the fan body through the air extraction pipe, it can prevent the water vapor in the waste gas from adhering to the surface of the fan impeller and condensing into water droplets, thereby making the surface of the fan impeller become wet. At the same time, the ammonium sulfate dust in the waste gas will adhere to the surface of the fan impeller, resulting in unbalanced operation of the fan impeller and excessive vibration, shortening the service life of the fan body. Therefore, the present utility model can extend the service life of the fan body.

[0018] Meanwhile, when the waste gas enters the absorption tower in the present utility model, the absorption liquid in the absorption tower absorbs the heat of the waste gas, cooling the waste gas and heating the absorption liquid at the same time. The heated absorption liquid expands in volume, causing the liquid level of the absorption liquid in the absorption tower to rise. When the liquid level of the absorption liquid submerges the capacitive liquid level switch, the capacitive liquid level switch in the present utility model closes for a set time. At this time, the liquid discharge pump pumps the heated absorption liquid in the absorption tower into the liquid discharge pipe for discharge, thus discharging the heated absorption liquid in the absorption tower. At the same time, the liquid inlet pump pumps the absorption liquid from the external absorption liquid source into the liquid inlet pipe and pushes the sealing mechanism upward. The absorption liquid in the liquid inlet pipe enters the absorption tower through the liquid inlet hole, thus replenishing the absorption liquid in the absorption tower and cooling the inside of the absorption tower, facilitating the continuous use of the present utility model.

[0019] In the present utility model, the provided sealing mechanism can close the liquid inlet hole when the liquid inlet pump is not working, preventing the absorption liquid in the absorption tower from discharging into the liquid inlet pipe through the liquid inlet hole. At the same time, in the present utility model, the provided intake check valve can prevent the absorption liquid in the absorption tower from flowing back into the intake pipe when adding waste gas to the absorption tower. By providing the rated liquid discharge check valve, when the liquid discharge pump is working, it can prevent the absorption liquid in the liquid discharge pipe from flowing back into the absorption tower. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of a device for protecting a ammonium sulfate blower according to the present utility model;

[0021] Figure 2 is a schematic structural diagram of the cross-section of the absorption tower of a device for protecting a ammonium sulfate blower according to the present utility model;

[0022] Figure 3 is a schematic cross-sectional structural diagram when the liquid level of the absorption liquid in the absorption tower of a device for protecting a ammonium sulfate blower according to the present utility model submerges the capacitive liquid level switch.

[0023] In the drawings: 1. Blower body; 11. Suction pipe; 12. Mounting seat;

[0024] 2. Absorption tower; 21. Absorption liquid; 22. Sealing mechanism; 221. Sealing block; 222. Connecting plate; 223. Fixed plate; 224. Spring rod; 23. Support leg; 24. Liquid inlet hole; 25. Capacitive liquid level switch; 26. Air outlet hole; 27. Air inlet hole; 28. Liquid outlet hole;

[0025] 3. Liquid inlet pipe; 31. Liquid inlet pump;

[0026] 4. Intake check valve; 41. Intake pipe;

[0027] 5. Liquid discharge check valve; 51. Liquid discharge pipe; 52. Liquid discharge pump. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. In the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0029] First, refer to Figure 1 , according to Figure 1 , it can be known that the present utility model includes a fan body 1, which is fixedly installed on the ground through a mounting base 12. At the same time, an absorption tower 2 is arranged on one side of the fan body 1, and the absorption tower 2 is installed on the ground through a plurality of vertical support legs 23; continue to refer to Figure 1 , the air inlet of the fan body 1 is fixedly communicated with an air extraction pipe 11, and the end of the air extraction pipe 11 away from the fan body 1 is arranged at the top of the absorption tower 2 and is communicated with the inside of the absorption tower 2; continue to refer to Figure 1 , the bottom of the absorption tower 2 is fixedly communicated with a liquid inlet pipe 3, and the end of the liquid inlet pipe 3 away from the absorption tower 2 is connected to an external absorption liquid 21 source through a liquid inlet pump 31; continue to refer to Figure 1 , the bottom of the side wall of the absorption tower 2 is communicated with an air inlet pipe 41 through an air inlet check valve 4, and the opening direction of the air inlet check valve 4 is for the ammonium sulfate waste gas to flow from the air inlet pipe 41 to the absorption tower 2; continue to refer to Figure 1 , the upper part of the side wall of the absorption tower 2 is communicated with a liquid outlet pipe 51 through a liquid outlet check valve 5, and the end of the liquid outlet pipe 51 away from the liquid outlet check valve 5 is fixedly communicated with a liquid outlet pump 52, and the opening direction of the liquid outlet check valve 5 is for the absorption liquid 21 to flow from the absorption tower 2 to the liquid outlet pipe 51.

[0030] In the present utility model, when the absorption tower 2 is specifically arranged, reference can be made to Figure 2 and Figure 3 , according to Figure 2 and Figure 3 , it can be known that an air outlet hole 26 communicated with the air extraction pipe 11 is opened at the position of the top of the absorption tower 2 corresponding to the air extraction pipe 11, an air inlet hole 27 communicated with the air inlet check valve 4 is opened at the position of the side wall of the absorption tower 2 corresponding to the air inlet check valve 4, and a liquid outlet hole 28 communicated with the liquid outlet check valve 5 is provided at the position of the side wall of the absorption tower 2 corresponding to the liquid outlet check valve 5.

[0031] Continue to refer to Figure 2 and Figure 3 , a liquid inlet hole 24 is opened at the position of the bottom of the absorption tower 2 corresponding to the liquid inlet pipe 3, and a closing mechanism 22 for closing the liquid inlet hole 24 is arranged inside the absorption tower 2. When the closing mechanism 22 is specifically arranged, continue to refer to Figure 2 and Figure 3It can be seen that the closing mechanism 22 includes a closing block 221 for closing the liquid inlet hole 24. The closing block 221 is in the shape of a frustum of a cone with a larger upper part and a smaller lower part, and the lower part of the closing block 221 can be inserted into the liquid inlet hole 24. Continuing to refer to Figure 2 and Figure 3 , horizontal connecting plates 222 are fixedly connected to both sides of the closing block 221 respectively, and fixing plates 223 horizontally connected to the inner wall of the absorption tower 2 are arranged above each connecting plate 222, and the fixing plates 223 and the corresponding connecting plates 222 are connected by vertical spring rods 224.

[0032] Continuing to refer to Figure 2 and Figure 3 It can be seen that a capacitive liquid level switch 25 for controlling the liquid outlet pump 52 and the liquid inlet pump 31 is fixedly connected to the inner wall of the absorption tower 2.

[0033] The working principle of the device for protecting the ammonium sulfate fan in this embodiment is as follows: Before the present utility model is used, the liquid level height of the absorption liquid 21 in the absorption tower 2 is lower than the height of the capacitive liquid level switch 25, and the closing block 221 closes the liquid inlet hole 24 under the action of the spring rod 224.

[0034] When the present utility model is in use, the fan body 1 works to extract the air in the absorption tower 2. At this time, the pressure in the absorption tower 2 becomes smaller. Under the action of the pressure difference, the ammonium sulfate waste gas enters the absorption tower 2 through the air inlet pipe 41 and the intake check valve 4, and is mixed with the absorption liquid 21 in the absorption tower 2. The ammonium sulfate powder hi in the waste gas melts in the absorption liquid 21. At the same time, the absorption liquid 21 in the absorption tower 2 absorbs the heat of the waste gas, cooling the waste gas and heating the absorption liquid 21. The heated absorption liquid 21 expands in volume, so that the liquid level of the absorption liquid 21 in the absorption tower 2 rises. The waste gas passing through the absorption liquid 21 finally enters the fan body 1 through the exhaust pipe 11.

[0035] As the liquid level of the absorption liquid 21 in the absorption tower 2 rises, the absorption liquid 21 will submerge the capacitive liquid level switch 25. As Figure 3 shown, at this time, the capacitive liquid level switch 25 closes for a set time (such as 30 s, 1 min, etc.). The liquid outlet pump 52 pumps the heated absorption liquid 21 in the absorption tower 2 into the liquid outlet pipe 51 for discharge, thereby discharging the heated absorption liquid 21 in the absorption tower 2. At the same time, the liquid inlet pump 31 pumps the absorption liquid 21 from the external absorption liquid 21 source into the liquid inlet pipe 3 and pushes the closing block 221 upward. The absorption liquid 21 in the liquid inlet pipe 3 enters the absorption tower 2 through the liquid inlet hole 24, thereby replenishing the absorption liquid 21 in the absorption tower 2 and cooling the inside of the absorption tower 2, facilitating the continuous use of the present utility model.

[0036] In the above embodiments, the present utility model provides a device for protecting an ammonium sulfate fan. By arranging an absorption tower, the waste gas can be cooled by the absorption tower and the ammonium sulfate powder in the waste gas can be absorbed before the waste gas enters the fan body. Therefore, when the waste gas passing through the absorption tower enters the fan body through the suction pipe, it can prevent the water vapor in the waste gas from adhering to the surface of the fan impeller and condensing into water droplets, thus making the surface of the fan impeller become wet. At the same time, the ammonium sulfate dust in the waste gas will adhere to the surface of the fan impeller, resulting in unbalanced operation and excessive vibration of the fan impeller, shortening the service life of the fan body. Therefore, the present utility model can extend the service life of the fan body.

[0037] The above-described embodiments are only used to describe the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various variations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model should fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. A device for protecting an ammonium sulfate fan, comprising a fan body (1), characterized in that: One side of the air inlet of the fan body (1) is connected to the absorption tower (2) located on one side of the fan body (1) through an extraction pipe (11). An absorption liquid (21) is contained in the absorption tower (2). The bottom of the absorption tower (2) is connected to a liquid inlet pipe (3) through a closing mechanism (22). The bottom of the side wall of the absorption tower (2) is connected to an air inlet pipe (41) through an air inlet check valve (4). The upper part of the side wall of the absorption tower (2) is connected to a liquid outlet pipe (51) through a liquid outlet check valve (5). One end of the liquid outlet pipe (51) far from the liquid outlet check valve (5) is fixedly connected to a liquid outlet pump (52). A capacitive liquid level switch (25) for controlling the liquid outlet pump (52) is arranged at the upper part of the inner wall of the absorption tower (2), and the liquid level height of the absorption liquid (21) is lower than the height of the capacitive liquid level switch (25).

2. The device for protecting an ammonium sulfate blower according to claim 1, characterized in that: The fan body (1) is arranged on the ground through a mounting seat (12), and the absorption tower (2) is arranged on the ground through a plurality of vertical support legs (23) arranged at the bottom.

3. The device for protecting an ammonium sulfate blower according to claim 1, characterized in that: One end of the extraction pipe (11) far from the fan body (1) is connected to the top of the absorption tower (2).

4. The device for protecting an ammonium sulfate blower according to claim 1, wherein: A liquid inlet hole (24) closed by the closing mechanism (22) is formed at the bottom of the absorption tower (2) corresponding to the position of the liquid inlet pipe (3), and the position of the liquid inlet pipe (3) far from the absorption tower (2) is connected to an external absorption liquid (21) source through a liquid inlet pump (31).

5. The device for protecting an ammonium sulfate fan according to claim 4, wherein: The closing mechanism (22) includes a closing block (221) in the shape of a convex platform for closing the liquid inlet hole (24). Both sides of the closing block (221) are respectively connected to the inner wall of the absorption tower (2) through a moving mechanism.

6. The device for protecting an ammonium sulfate fan according to claim 5, characterized in that: The moving mechanism includes connecting plates (222) horizontally fixed on both sides of the closing block (221), and fixing plates (223) located above the connecting plates (222) and horizontally fixedly connected to the inner wall of the absorption tower (2); wherein, a vertical spring rod (224) is fixedly connected between the fixing plate (223) and the corresponding connecting plate (222).

7. The device for protecting an ammonium sulfate blower according to claim 1, characterized in that: The air inlet direction of the air inlet check valve (4) is that the ammonium sulfate waste gas flows from the air inlet pipe (41) to the absorption tower (2).

8. A device for protecting an ammonium sulfate blower according to claim 1, characterized in that: The liquid outlet direction of the liquid outlet check valve (5) is that the absorption liquid (21) flows from the absorption tower (2) to the liquid outlet pipe (51).

9. A device for protecting an ammonium sulfate blower according to any one of claims 1-8, characterized in that: An air outlet hole (26) is formed at the position of the absorption tower (2) corresponding to the extraction pipe (11), an air inlet hole (27) is formed at the position of the side wall of the absorption tower (2) corresponding to the air inlet check valve (4), and a liquid outlet hole (28) is formed at the position of the side wall of the absorption tower (2) corresponding to the liquid outlet check valve (5).

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