Cyclohexane oxidation off-gas separation pretreatment device

Abstract

The utility model discloses a cyclohexane oxidation tail gas separation pretreatment device relates to chemical industry waste gas treatment technical field, including cooling water tank still includes: circulating mechanism, the circulating mechanism sets up in cooling water tank, the circulating mechanism includes the cooling cylinder of setting in cooling water tank, the circulating mechanism is used for when the salt class is separated, the salt class of gaseous is cooled down, the cooling water of the utility model absorbs heat can flow into cooling water tank, when the cooling water passes through the fin, heat will be transferred from the cooling water to the fin, and the fin will transfer heat from the air outside, so that the cooling water in the cooling cylinder and cooling water tank will continuously circulate the cooling of cyclohexane oxidation tail gas in the conical hollow cylinder, ensure that the gaseous salt class in cyclohexane oxidation tail gas separates as solid to the inner wall of conical hollow cylinder, when the airflow rotates in the conical hollow cylinder, and the solid salt separated from the bottom of conical hollow cylinder is discharged, so as to realize the separation of salt class.

Description

Technical Field

[0001] This utility model relates to the field of chemical waste gas treatment technology, and in particular to a cyclohexane oxidation tail gas separation and pretreatment device. Background Technology

[0002] The cyclohexane oxidation tail gas separation and pretreatment unit plays a crucial role in the cyclohexane oxidation production process. It is mainly used to perform preliminary treatment on the cyclohexane oxidation tail gas, creating conditions for subsequent deep treatment and utilization.

[0003] Salts contained in exhaust gases may crystallize and precipitate on the inner walls of equipment and pipelines as temperature and pressure change. For example, during the cooling and separation of organic matter, salts may crystallize in low-temperature areas, causing blockages in pipelines and equipment and affecting the normal operation of the device. Utility Model Content

[0004] The purpose of this invention is to provide a cyclohexane oxidation tail gas separation and pretreatment device to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cyclohexane oxidation tail gas separation and pretreatment device, including a cooling water tank, and further comprising:

[0006] A circulation mechanism is provided inside a cooling water tank. The circulation mechanism includes a cooling cylinder provided inside the cooling water tank. The circulation mechanism is used to cool down the gaseous salts during salt precipitation, thereby accelerating the salt precipitation rate.

[0007] An agitation mechanism is provided inside a cooling water tank. The agitation mechanism includes a conical hollow cylinder disposed inside the cooling water tank. The agitation mechanism is used to agitate the cooling water during salt separation, so that the cooling water can fully cool the gas inside the conical hollow cylinder.

[0008] Preferably, the circulation mechanism includes a cooling cylinder fixedly installed on the top of the cooling water tank, the cooling cylinder communicating with the cooling water tank, a plurality of support legs fixedly installed at the bottom of the cooling water tank, a plurality of heat sinks fixedly installed inside the cooling water tank, and the bottom ends of the plurality of heat sinks extending outside the cooling water tank.

[0009] Preferably, a mounting plate is fixedly installed on the top of the cooling water tank, a water pump is fixedly installed on the right side of the mounting plate, an inlet pipe is fixedly installed at the bottom of the water pump and the inlet pipe is connected to the cooling water tank, and an outlet pipe is fixedly installed at the top of the water pump and the top of the outlet pipe is connected to the cooling cylinder.

[0010] Preferably, a limit spring is fixedly installed on the bottom inner wall of the cooling cylinder, and a stirring box is fixedly installed on the top of the limit spring. The stirring box is slidably connected to the cooling cylinder, and a plurality of circular holes are opened in the stirring box.

[0011] Preferably, the top of the mixing tank is fixedly installed with two circular holes, the top ends of the two circular holes extend slidably out of the cooling cylinder, and the top ends of the two strip plates are respectively fixedly installed with tapered rods.

[0012] Preferably, the agitation mechanism includes a conical hollow cylinder that is fixedly installed inside the cooling cylinder, a circular cylinder that is rotatably installed inside the conical hollow cylinder, the top end of the circular cylinder extending outside the conical hollow cylinder, and a plurality of drive blades fixedly installed on the outer wall of the circular cylinder.

[0013] Preferably, a circular rotating box is rotatably mounted on the top of the cylindrical cylinder, and an air outlet pipe is fixedly mounted on the top of the circular rotating box.

[0014] Preferably, a contact plate is fixedly installed on the cylindrical tube, and the contact plate is adapted to two tapered cylindrical rods.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model:

[0017] 1. During use, water is injected into the cooling cylinder and cooling water tank. Then, the cyclohexane oxidation tail gas is introduced into the conical hollow cylinder through the inlet pipe. After entering the conical hollow cylinder, the cyclohexane oxidation tail gas will rotate and descend at high speed. The heat of the cyclohexane oxidation tail gas will be transferred to the outer wall of the conical hollow cylinder. The cooling water in the cooling cylinder will cool and dissipate heat from the outer wall of the conical hollow cylinder. The cooling water that absorbs heat will flow into the cooling water tank. When the cooling water passes through the heat sink, heat will be transferred from the cooling water to the heat sink. The heat sink will transfer the heat away from the outside air. In this way, with the continuous pumping, the cooling water in the cooling cylinder and cooling water tank will continuously circulate and cool the cyclohexane oxidation tail gas in the conical hollow cylinder, ensuring that the gaseous salts in the cyclohexane oxidation tail gas precipitate as solids onto the inner wall of the conical hollow cylinder. When the airflow rotates in the conical hollow cylinder, the precipitated solid salts are discharged from the bottom of the conical hollow cylinder, thereby achieving the separation of salts.

[0018] 2. When the cyclohexane oxidation tail gas enters the conical hollow cylinder, the gas comes into contact with the drive fan blades, which drive the cylinder to rotate. The cylinder then drives the contact plate to rotate, and the contact plate comes into contact with the conical rod. The conical rod descends under the action of its inclined surface, which in turn drives the strip plate to descend. The strip plate then drives the mixing box to descend. At this time, the limit spring will undergo compression deformation. When the contact plate leaves the conical rod, the limit spring will drive the mixing box to rise under the action of elastic force. As the contact plate continuously contacts the conical rod, it will drive the mixing box to rise and fall continuously. The mixing box will rise and fall through the circular hole, which will cause the cooling water in the cooling cylinder to continuously tumble up and down, thus ensuring that the water flows fully and can fully contact the outer wall of the conical hollow cylinder, improving the cooling efficiency of the cooling water for the cyclohexane oxidation tail gas and allowing the gaseous salts in the cyclohexane oxidation tail gas to precipitate rapidly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the right side of this utility model;

[0021] Figure 3 This is a schematic diagram of the left sectional view of the present invention;

[0022] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0023] Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.

[0024] In the diagram: 1. Cooling water tank; 101. Cooling cylinder; 102. Support leg; 1021. Heat sink; 103. Mounting plate; 104. Water pump; 105. Inlet pipe; 106. Outlet pipe; 107. Limiting spring; 108. Mixing tank; 109. Circular hole; 110. Strip plate; 111. Conical rod; 2. Conical hollow cylinder; 201. Circular cylinder; 202. Air inlet pipe; 2021. Drive fan blade; 203. Circular rotating box; 204. Air outlet pipe; 205. Contact plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figure 1-5 The cyclohexane oxidation tail gas separation pretreatment device shown includes a cooling water tank 1, and further includes: a circulation mechanism, which is disposed within the cooling water tank 1 and includes a cooling cylinder 101 disposed within the cooling water tank 1. The circulation mechanism is used to cool the gaseous salts during salt precipitation, thereby accelerating the salt precipitation rate; and an agitation mechanism, which is disposed within the cooling water tank 1 and includes a conical hollow cylinder 2 disposed within the cooling water tank 1. The agitation mechanism is used to agitate the cooling water during salt separation, so that the cooling water can fully cool the gas inside the conical hollow cylinder 2. The circulation mechanism includes a cooling cylinder 101 fixedly installed on the top of the cooling water tank 1, which is connected to the cooling water tank 1. Several support legs 102 are fixedly installed at the bottom of the cooling water tank 1, and several heat sinks 1021 are fixedly installed inside the cooling water tank 1, with the bottom ends of the heat sinks 1021 extending outside the cooling water tank 1. A mounting plate 103 is fixedly installed on the top of the cooling water tank 1. A water pump 104 is fixedly installed on the right side of the mounting plate 103. An inlet pipe 105 is fixedly installed at the bottom of the water pump 104, and the inlet pipe 105 communicates with the cooling water tank 1. An outlet pipe 106 is fixedly installed at the top of the water pump 104, and the top of the outlet pipe 106 communicates with the cooling cylinder 101. A limit spring 107 is fixedly installed on the bottom inner wall of the cooling cylinder 101. A stirring box 108 is fixedly installed at the top of the limit spring 107. The stirring box 108 is slidably connected to the cooling cylinder 101. Several circular holes 109 are opened inside the stirring box 108. Two circular holes 109 are fixedly installed at the top of the stirring box 108. The tops of the two circular holes 109 slide to the outside of the cooling cylinder 101. Conical rods 111 are fixedly installed at the tops of the two strip plates 110 respectively.

[0027] In operation, water is injected into the cooling cylinder 101 and the cooling water tank 1. Then, the cyclohexane oxidation tail gas is introduced into the conical hollow cylinder 2 through the inlet pipe 202. After entering the conical hollow cylinder 2, the cyclohexane oxidation tail gas rotates and descends at high speed. The heat of the cyclohexane oxidation tail gas is transferred to the outer wall of the conical hollow cylinder 2. The cooling water in the cooling cylinder 101 cools and dissipates heat from the outer wall of the conical hollow cylinder 2. The cooled water that has absorbed heat flows into the cooling water tank 1. When the cooling water passes through the heat sink 1021, the heat is transferred from the cooling water to the outer wall of the conical hollow cylinder 2. The heat is transferred from the water to the heat sink 1021, which then transfers heat from the outside air. With the continuous pumping of the water pump 104, the cooling water in the cooling cylinder 101 and the cooling water tank 1 will continuously circulate and cool the cyclohexane oxidation tail gas in the conical hollow cylinder 2, ensuring that the gaseous salts in the cyclohexane oxidation tail gas precipitate as solids onto the inner wall of the conical hollow cylinder 2. When the airflow rotates inside the conical hollow cylinder 2, the precipitated solid salts are discharged from the bottom of the conical hollow cylinder 2, thereby achieving the separation of salts.

[0028] The agitation mechanism includes a conical hollow cylinder 2 that is fixedly installed inside the cooling cylinder 101. A circular cylinder 201 is rotatably installed inside the conical hollow cylinder 2, with its top end extending outside the conical hollow cylinder 2. Several drive fan blades 2021 are fixedly installed on the outer wall of the circular cylinder 201. A circular rotating box 203 is rotatably installed at the top end of the circular cylinder 201, and an exhaust pipe 204 is fixedly installed at the top end of the circular rotating box 203. A contact plate 205 is fixedly installed on the circular cylinder 201, and the contact plate 205 is adapted to two conical rods 111.

[0029] When the cyclohexane oxidation tail gas enters the conical hollow cylinder 2, the gas comes into contact with the drive fan blade 2021. The drive fan blade 2021 drives the circular cylinder 201 to rotate, which in turn drives the contact plate 205 to rotate. The contact plate 205 then comes into contact with the conical rod 111, which descends under the action of its inclined surface. The conical rod 111 then drives the strip plate 110 to descend, which in turn drives the mixing tank 108 to descend. At this time, the limit spring 107 will undergo compression deformation. When the contact plate 205 leaves the conical rod 111... After step 11, the limit spring 107 will drive the mixing tank 108 to rise under the action of elastic force. As the contact plate 205 continuously contacts the conical rod 111, it will drive the mixing tank 108 to rise and fall continuously. The mixing tank 108 will rise and fall through the circular hole 109. The circular hole 109 will drive the cooling water in the cooling cylinder 101 to continuously tumble up and down, thereby making the water flow fully and allowing the cooling water to fully contact the outer wall of the conical hollow cylinder 2, improving the cooling efficiency of the cooling water on the cyclohexane oxidation tail gas, and allowing the gaseous salts in the cyclohexane oxidation tail gas to precipitate quickly.

[0030] The working principle of the cyclohexane oxidation tail gas separation and pretreatment device provided by this utility model is as follows:

[0031] In operation, water is injected into the cooling cylinder 101 and the cooling water tank 1. Then, the cyclohexane oxidation tail gas is introduced into the conical hollow cylinder 2 through the inlet pipe 202. After entering the conical hollow cylinder 2, the cyclohexane oxidation tail gas rotates and descends at high speed. The heat of the cyclohexane oxidation tail gas is transferred to the outer wall of the conical hollow cylinder 2. The cooling water in the cooling cylinder 101 cools and dissipates heat from the outer wall of the conical hollow cylinder 2. The cooled water that has absorbed heat flows into the cooling water tank 1. When the cooling water passes through the heat sink 1021, the heat is transferred from the cooling water to the outer wall of the conical hollow cylinder 2. The heat is transferred from the water to the heat sink 1021, which then transfers heat from the outside air. With the continuous pumping of the water pump 104, the cooling water in the cooling cylinder 101 and the cooling water tank 1 will continuously circulate and cool the cyclohexane oxidation tail gas in the conical hollow cylinder 2, ensuring that the gaseous salts in the cyclohexane oxidation tail gas precipitate as solids onto the inner wall of the conical hollow cylinder 2. When the airflow rotates inside the conical hollow cylinder 2, the precipitated solid salts are discharged from the bottom of the conical hollow cylinder 2, thereby achieving the separation of salts.

[0032] When the cyclohexane oxidation tail gas enters the conical hollow cylinder 2, the gas comes into contact with the drive fan blade 2021. The drive fan blade 2021 drives the circular cylinder 201 to rotate, which in turn drives the contact plate 205 to rotate. The contact plate 205 then comes into contact with the conical rod 111, which descends under the action of its inclined surface. The conical rod 111 then drives the strip plate 110 to descend, which in turn drives the mixing tank 108 to descend. At this time, the limit spring 107 will undergo compression deformation. When the contact plate 205 leaves the conical rod 111... After step 11, the limit spring 107 will drive the mixing tank 108 to rise under the action of elastic force. As the contact plate 205 continuously contacts the conical rod 111, it will drive the mixing tank 108 to rise and fall continuously. The mixing tank 108 will rise and fall through the circular hole 109. The circular hole 109 will drive the cooling water in the cooling cylinder 101 to continuously tumble up and down, thereby making the water flow fully and allowing the cooling water to fully contact the outer wall of the conical hollow cylinder 2, improving the cooling efficiency of the cooling water on the cyclohexane oxidation tail gas, and allowing the gaseous salts in the cyclohexane oxidation tail gas to precipitate quickly.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cyclohexane oxidation tail gas separation and pretreatment device, comprising a cooling water tank (1), characterized in that, Also includes: A circulation mechanism is provided in a cooling water tank (1). The circulation mechanism includes a cooling cylinder (101) provided in the cooling water tank (1). The circulation mechanism is used to cool down the gaseous salts during salt precipitation to accelerate the salt precipitation rate. The stirring mechanism is installed in the cooling water tank (1). The stirring mechanism includes a conical hollow cylinder (2) installed in the cooling water tank (1). The stirring mechanism is used to stir the cooling water when separating salts so that the cooling water can fully cool the gas in the conical hollow cylinder (2).

2. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 1, characterized in that: The circulation mechanism includes a cooling cylinder (101) fixedly installed on the top of the cooling water tank (1), the cooling cylinder (101) is connected to the cooling water tank (1), a number of support legs (102) are fixedly installed at the bottom of the cooling water tank (1), a number of heat sinks (1021) are fixedly installed inside the cooling water tank (1), and the bottom ends of the heat sinks (1021) extend to the outside of the cooling water tank (1).

3. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 2, characterized in that: A mounting plate (103) is fixedly installed on the top of the cooling water tank (1). A water pump (104) is fixedly installed on the right side of the mounting plate (103). An inlet pipe (105) is fixedly installed at the bottom of the water pump (104). The inlet pipe (105) is connected to the cooling water tank (1). An outlet pipe (106) is fixedly installed at the top of the water pump (104). The top of the outlet pipe (106) is connected to the cooling cylinder (101).

4. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 2, characterized in that: A limiting spring (107) is fixedly installed on the bottom inner wall of the cooling cylinder (101), and a stirring box (108) is fixedly installed on the top of the limiting spring (107). The stirring box (108) is slidably connected to the cooling cylinder (101), and a number of circular holes (109) are opened in the stirring box (108).

5. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 4, characterized in that: Two strip plates (110) are fixedly installed on the top of the mixing tank (108), and the top ends of the two circular holes (109) slide to the outside of the cooling cylinder (101). Conical rods (111) are fixedly installed on the top ends of the two strip plates (110).

6. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 5, characterized in that: The agitation mechanism includes a conical hollow cylinder (2) that is fixedly installed inside the cooling cylinder (101). A circular cylinder (201) is rotatably installed inside the conical hollow cylinder (2). The top of the circular cylinder (201) extends to the outside of the conical hollow cylinder (2). Several transmission fan blades (2021) are fixedly installed on the outer wall of the circular cylinder (201).

7. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 6, characterized in that: A circular rotating box (203) is rotatably mounted on the top of the cylindrical tube (201), and an air outlet pipe (204) is fixedly mounted on the top of the circular rotating box (203).

8. The cyclohexane oxidation tail gas separation and pretreatment device according to claim 7, characterized in that: A contact plate (205) is fixedly installed on the cylindrical tube (201), and the contact plate (205) is adapted to two tapered rods (111).

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