Carbon black production tail gas waste heat utilization device

Abstract

The utility model belongs to the field of waste heat utilization devices, and particularly relates to a carbon black production tail gas waste heat utilization device which comprises a water tank, a coil pipe is fixedly connected to the inner side of the water tank, a shaft tail fixing seat is fixedly connected to the top of the inner side of the water tank, and a rotating shaft is installed on the inner side of the shaft tail fixing seat through a bearing. Fan blades are fixedly connected to the middle section of a shaft body of the rotating shaft, a stirring rod is fixedly connected to the lower section of the shaft body of the rotating shaft, a plurality of connecting frames are fixedly connected to the end, located on the outer side of the water tank, of the coil pipe, and flange plate connecting pipes are fixedly connected to the other ends of the connecting frames. The coil pipe is arranged in the water tank, tail gas produced by carbon black can enter the coil pipe, then clean water in the coil pipe can be heated, the basic waste heat recovery function is achieved, after the tail gas is discharged out of the coil pipe, the fan blades can be blown, the stirring rod coaxial with the fan blades rotates synchronously, then the clean water is stirred, and the waste heat recovery effect is achieved. The inner wall of the water tank is prevented from incrustation.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization devices, in particular to a waste heat utilization device for tail gas from carbon black production. Background Art

[0002] The waste heat utilization device of tail gas from carbon black production refers to the recovery and utilization of energy by collecting and utilizing the waste heat in the tail gas generated in the process of carbon black production. The utility model patent with the announcement number CN219128600U discloses a tail gas collection device for producing carbon black, including: a carbon black collection device; a waste heat utilization device, the waste heat utilization device is connected to the carbon black tail gas outlet; a tail gas recovery device, the tail gas recovery device is arranged after the waste heat utilization device, the tail gas recovery device includes a conical shell, a spiral carbon black tail gas inlet pipe arranged above the conical shell, a de-powdered carbon black tail gas outlet vertically arranged in the conical shell, a carbon black powder discharge port arranged below the conical shell, a carbon black powder collection bin arranged below the carbon black powder discharge port, the conical shell is sealed and connected to the carbon black powder collection bin; the de-powdered carbon black tail gas outlet is connected to the furnace body of the acetylene cracking combustion furnace; the device realizes the waste heat utilization of high-temperature carbon black tail gas and the recovery of hydrogen in the carbon black tail gas through the waste heat utilization device and the tail gas recovery device.

[0003] When the existing carbon black production tail gas waste heat utilization device is used, the waste heat of the tail gas is used to heat the clean water in the water tank. However, the clean water in the water tank is relatively static, which easily causes scale to form on the inner wall of the water tank. In addition, large particles of impurities in the tail gas are easily accumulated in the tail gas transmission pipeline, causing the transmission pipeline to be blocked. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a device for utilizing waste heat from tail gas produced by carbon black, which solves the problems that the water tank in the existing device for utilizing waste heat from tail gas produced by carbon black is prone to scale generation and the tail gas conveying pipeline is prone to blockage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for utilizing waste heat from carbon black production exhaust gas, comprising a water tank, a coil is fixedly connected to the inner side of the water tank, a shaft tail fixing seat is fixedly connected to the inner top of the water tank, a rotating shaft is installed on the inner side of the shaft tail fixing seat through a bearing, a fan blade is fixedly connected to the middle section of the shaft body of the rotating shaft, a stirring rod is fixedly connected to the lower section of the shaft body of the rotating shaft, one end of the coil located on the outer side of the water tank is fixedly connected to a plurality of connecting frames, the other end of the connecting frame is fixedly connected to a flange connecting pipe, a knob is connected to the flange connecting pipe and the coil for common rotation, and the knob is slidably connected to the inner side of the connecting frame, and a filter is fixedly connected to the inner side of the knob.

[0006] Preferably, a plurality of evenly distributed fins are fixedly connected to the outer side of the tube wall of the coil, and the fins and the coil are an integrated structure. The heat dissipation capacity of the coil can be increased by setting the fins.

[0007] Preferably, a drain pipe is fixedly connected to the bottom of the water tank, and a valve is provided in the middle section of the drain pipe. The arrangement of the drain pipe facilitates the discharge of the heated clean water.

[0008] Preferably, the knob is in the shape of a hollow ring and is made of plastic. The arrangement of the knob facilitates the installation of the filter.

[0009] Preferably, a plurality of fixing rods are fixedly connected to the inner side of the flange connecting pipe, and a central axis is fixedly connected between the plurality of fixing rods, and a brush is fixedly connected to the right section of the shaft of the central axis, and the brush is in contact with the filter screen. The relative rotation between the filter screen and the brush can prevent the filter screen from being blocked.

[0010] Preferably, a rotating rod is fixedly connected to the middle section of the shaft of the central axis, and a convex ball is fixedly connected to the side of the filter screen close to the central axis. The filter screen can vibrate through the mutual misalignment between the rotating rod and the convex ball, further preventing the filter screen from being blocked.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model sets a coil in the water tank, and the exhaust gas produced by carbon black production can enter the coil, and then the clean water in the coil can be heated to achieve the basic waste heat recovery function. After the exhaust gas is discharged from the coil, it will blow the fan blades, so that the stirring rod coaxial with the fan blades rotates synchronously, thereby stirring the clean water to prevent scale from forming on the inner wall of the water tank.

[0013] 2. The utility model installs a flange connecting pipe through a connecting frame at the inlet of the coil for connecting with the exhaust outlet of the carbon black production equipment, and then sets a knob with a built-in filter between the flange connecting pipe and the coil, and a relatively fixed brush is set on the inner side of the flange connecting pipe, so that the filter can be prevented from being blocked by the relative rotation between the filter and the brush, thereby ensuring the normal circulation of the exhaust while filtering the exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A front view cutaway stereogram of

[0016] Figure 3 For the utility model Figure 1 A front cross-sectional view of

[0017] Figure 4 For the utility model Figure 3 A-section structure enlarged view.

[0018] In the figure: 1, water tank; 2, coil; 3, fin; 4, shaft tail fixing seat; 5, rotating shaft; 6, fan blades; 7, stirring rod; 8, drain pipe; 9, connecting frame; 10, flange connecting pipe; 11, knob; 12, filter screen; 13, fixing rod; 14, center axis; 15, brush; 16, convex ball; 17, rotating rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A device for utilizing waste heat from tail gas in carbon black production includes a water tank 1, a coil 2 is fixedly connected to the inner side of the water tank 1, and a plurality of evenly distributed fins 3 are fixedly connected to the outer side of the tube wall of the coil 2, and the fins 3 and the coil 2 are an integrated structure. The arrangement of the fins 3 can increase the heat dissipation capacity of the coil 2, a shaft tail fixing seat 4 is fixedly connected to the inner top of the water tank 1, a rotating shaft 5 is installed on the inner side of the shaft tail fixing seat 4 through a bearing, a fan blade 6 is fixedly connected to the middle section of the shaft body of the rotating shaft 5, and a stirring rod 7 is fixedly connected to the lower section of the shaft body of the rotating shaft 5, a drain pipe 8 is fixedly connected to the bottom of the water tank 1, and a valve is arranged in the middle section of the pipe body of the drain pipe 8. The arrangement of the drain pipe 8 facilitates the discharge of clean water after heating.

[0021] See also Figure 1-4 The coil 2 is fixedly connected to one end outside the water tank 1 with a plurality of connecting frames 9, and the other end of the connecting frame 9 is fixedly connected to a flange connecting pipe 10, and a knob 11 is rotatably connected between the flange connecting pipe 10 and the coil 2, and the knob 11 is a hollow circular ring and made of plastic. The setting of the knob 11 facilitates the installation of the filter 12, and the knob 11 is slidably connected to the inner side of the connecting frame 9, and the inner side of the knob 11 is fixedly connected to the filter 12.

[0022] See also Figure 4A plurality of fixing rods 13 are fixedly connected to the inner side of the flange connecting pipe 10, and a central axis 14 is fixedly connected between the plurality of fixing rods 13. A brush 15 is fixedly connected to the right section of the shaft body of the central axis 14, and the brush 15 is in contact with the filter screen 12. The filter screen 12 can be prevented from being blocked by the relative rotation between the filter screen 12 and the brush 15. A rotating rod 17 is fixedly connected to the middle section of the shaft body of the central axis 14, and a convex ball 16 is fixedly connected to the side of the filter screen 12 close to the central axis 14. The mutual misalignment between the rotating rod 17 and the convex ball 16 can cause the filter screen 12 to vibrate, further preventing the filter screen 12 from being blocked.

[0023] The specific implementation process of the utility model is as follows: when in use, the device is connected to the exhaust gas outlet of the carbon black production equipment through the flange connecting pipe 10, so that the exhaust gas enters the coil 2 through the flange connecting pipe 10, and before entering the coil 2, the particulate impurities will be effectively intercepted and filtered by the filter 12, and then the waste heat of the exhaust gas will heat the clean water in the water tank 1, so that the waste heat of the exhaust gas is effectively utilized, and after the exhaust gas is discharged through the coil 2, it will blow the fan blades 6, so that the stirring rod 7 coaxial with the fan blades 6 rotates synchronously, and then stirs the clean water to prevent scale from forming on the inner wall of the water tank 1; in addition, by turning the knob 11, the filter 12 on the inner side of the knob 11 and the brush 15 can be rotated relative to each other, thereby preventing the filter 12 from being blocked, and thus filtering the exhaust gas while also ensuring the normal circulation of the exhaust gas.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for utilizing waste heat from tail gas in carbon black production, comprising a water tank (1), characterized in that: The inner side of the water tank (1) is fixedly connected with a coil (2), the inner top of the water tank (1) is fixedly connected with a shaft tail fixing seat (4), the inner side of the shaft tail fixing seat (4) is installed with a rotating shaft (5) through a bearing, the middle section of the shaft body of the rotating shaft (5) is fixedly connected with a fan blade (6), the lower section of the shaft body of the rotating shaft (5) is fixedly connected with a stirring rod (7), one end of the coil (2) located outside the water tank (1) is fixedly connected with a plurality of connecting frames (9), the other end of the connecting frame (9) is fixedly connected with a flange connecting pipe (10), a knob (11) is rotatably connected between the flange connecting pipe (10) and the coil (2), and the knob (11) is slidably connected to the inner side of the connecting frame (9), and a filter screen (12) is fixedly connected to the inner side of the knob (11).

2. A carbon black production tail gas waste heat utilization device according to claim 1, characterized in that: A plurality of evenly distributed fins (3) are fixedly connected to the outer side of the tube wall of the coil (2), and the fins (3) and the coil (2) are an integrated structure.

3. The device for utilizing waste heat from tail gas produced by carbon black production according to claim 1, characterized in that: The bottom of the water tank (1) is fixedly connected to a drainage pipe (8), and a valve is provided in the middle section of the drainage pipe (8).

4. A carbon black production tail gas waste heat utilization device according to claim 1, characterized in that: The knob (11) is in the shape of a hollow ring and is made of plastic.

5. The device for utilizing waste heat from tail gas produced by carbon black production according to claim 1, characterized in that: A plurality of fixing rods (13) are fixedly connected to the inner side of the flange connection pipe (10), and a central axis (14) is fixedly connected between the plurality of fixing rods (13). A brush (15) is fixedly connected to the right section of the shaft of the central axis (14), and the brush (15) is in contact with the filter screen (12).

6. A carbon black production tail gas waste heat utilization device according to claim 5, characterized in that: A rotating rod (17) is fixedly connected to the middle section of the shaft body of the central shaft (14), and a convex ball (16) is fixedly connected to the side of the filter screen (12) close to the central shaft (14).

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