A copper smelting flue gas purification, cooling and dust removal device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a copper smelting fume purification, cooling and dust removal device, comprising: an absorption tower, an air inlet pipe for the entry of fume is fixedly installed at the bottom of the absorption tower; a guide component, which is arranged at the port of the air inlet pipe and is used for cutting and diverting the incoming fume, the guide component comprises a guide part and a cutting part, the guide part is fixedly connected to the air inlet pipe, the cutting part is fixedly connected to the guide part, part of the fume discharged from the air inlet pipe rises from the gap between the outer wall of the guide part and the inner wall of the absorption tower, another part of the gas enters from the smaller port of the guide part and is cut and diverted by the cutting part, and the rising airflow after cutting continues to be cut by another cutting part above, and the beam-shaped airflow discharged from the air inlet pipe is cut and dispersed, the contact area between the airflow and the liquid is increased, the cooling effect is improved, and the gas is kept moist for easy adsorption and treatment by the adsorbent, the scheme has less resistance to the airflow and smoother exhaust.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a copper smelting fume purification, cooling and dust removal device. Background Art

[0002] Since the cooling and dust removal of the copper smelting flue gas acid-making unit was built, the temperature of the SO2 flue gas at the outlet of the first-level cooling and dust removal scrubber is 72℃, and the content of mineral dust and heavy metals is 5mmg / m3, which cannot meet the normal production needs of acid production and seriously affects the realization of the company's production goals. It is mainly manifested in that the temperature of SO2 flue gas is still 72℃ after it comes out of the first-level cooling and dust removal device for acid purification, and the acid mist contains heavy metals and mineral dust exceeding 5mg / m3, which seriously exceeds the process indicators. This causes the electrostatic precipitator to be blocked, frequent shutdowns for cleaning, and the production cannot be carried out continuously and normally.

[0003] The prior art discloses a desulfurization and purification device for copper smelting flue gas (publication number: CN206276222U), which includes an absorption tower and a water inlet pipe. A packing layer is arranged inside the absorption tower. The water inlet pipe includes a first water inlet pipe and a second water inlet pipe. The first water inlet pipe leads to three branches, each branch is connected to a single-channel spray pipe in the absorption tower, and the second water inlet pipe is connected to two annular spray pipes, and the annular spray pipes are spaced apart from the single-channel spray pipe.

[0004] In the prior art, the air intake pipe is set to a chimney structure, that is, an umbrella-shaped plate is installed at the pipe opening to cover the pipe opening, so as to achieve dispersion and guidance of the intake air. The smoke discharged from the air intake pipe needs to come into contact with the sprayed liquid. Although the umbrella-shaped plate can guide and disperse the gas to the surroundings, it also forms a gas-blocking effect at the port of the smoke pipe, which limits the exhaust efficiency of the smoke pipe and increases the exhaust resistance, leaving a certain space for optimization.

[0005] Therefore, we propose a copper smelting flue gas purification, cooling and dust removal device. Utility Model Content

[0006] The utility model mainly solves the technical problems that the exhaust gas resistance of the air inlet pipe is large and the gas cutting effect is not ideal, and provides a copper smelting fume purification, cooling and dust removal device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme, a copper smelting flue gas purification, cooling and dust removal device, comprising:

[0008] The absorption tower has a hollow tank structure, a pipe for exhaust is fixedly installed on the top surface of the absorption tower, and an air inlet pipe for flue gas to enter is fixedly installed on the bottom of the absorption tower;

[0009] An adsorption component is arranged in the absorption tower cavity and is used for cooling the flue gas. The adsorption component includes a support plate and a water spraying member. The support plate and the water spraying member are both fixedly connected to the absorption tower. The water spraying member is hollow inside and connected to a water source.

[0010] The guide assembly is arranged at the port of the air inlet pipe and is used to cut and divert the incoming flue gas. The guide assembly includes a guide part and a cutting part. The guide part is fixedly connected to the air inlet pipe, and the cutting part is fixedly connected to the guide part. Several guide parts are arranged in the absorption tower, and the multiple guide parts jointly cut and divert the flue gas.

[0011] As a preferred embodiment of the utility model, the support plate forms a circular plate structure adapted to the absorption tower chamber, the circumferential surface of the support plate is fixedly connected to the inner wall of the absorption tower, a plurality of air holes are evenly opened on the top of the support plate, the water spray component is arranged above the support plate, two support plates are arranged in the absorption tower, and a water spray component is arranged above each support plate.

[0012] As a preferred embodiment of the utility model, the water spraying member forms an annular structure, the bottom of the water spraying member is evenly provided with spray holes, the circumferential surface of the water spraying member is fixedly connected with a water pipe, and the water pipe is connected to a water source.

[0013] As a preferred embodiment of the utility model, a feeding window is provided on the outer wall of the absorption tower, a feeding box is fixedly mounted on the wall of the absorption tower, the feeding box faces the feeding window, and the feeding box is located on one side of the support plate.

[0014] As a preferred embodiment of the utility model, the feeding box forms an open frame structure, one side of the feeding box forms an arc surface and fits the outer wall of the absorption tower, and a sealing plate is provided at the opening on the other side of the feeding box, and the sealing plate is locked and fixed to the feeding box by fasteners.

[0015] As a preferred embodiment of the present invention, the guide portion forms a circular funnel structure, the smaller opening of the guide portion faces the port of the air intake pipe, and the sizes of the multiple guide portions increase uniformly in the direction away from the air intake pipe.

[0016] As a preferred embodiment of the utility model, a cross arm is fixedly provided at the bottom end of each guide portion, the cross arm is fixedly connected to another guide portion below, and the lowest cross arm is fixedly connected to the top end of the intake pipe.

[0017] As a preferred embodiment of the present invention, the cutting portion forms a plate with a cross-shaped horizontal cross section, the side wall of the cutting portion is fixedly connected to the inner wall surface of the guide portion, and two adjacent cutting portions are staggered. Beneficial Effects

[0018] The utility model provides a copper smelting fume purification, cooling and dust removal device. It has the following beneficial effects:

[0019] 1. A copper smelting flue gas purification, cooling and dust removal device, part of the flue gas discharged from the air inlet pipe rises from the gap between the outer wall of the guide part and the inner wall of the absorption tower, and the other part of the gas enters the cutting part from the smaller port of the guide part to be cut and diverted, and the rising airflow after cutting continues to be cut by another cutting part above, through the staggered arrangement of multiple cutting parts, the angle of the cutting part is forty-five degrees for example, and then the multiple cutting parts form a blade-shaped structure to cut the rising airflow, and another identical water spray part is installed above the uppermost guide part for spraying liquid, and the contact area between the airflow and the liquid is increased by cutting and dispersing the beam-like airflow discharged from the air inlet pipe, thereby improving the cooling effect, and at the same time, keeping the gas moist for easy adsorption by the adsorbent. The funnel-shaped guide part can guide the gas and compared with the prior art that uses a cover plate to block the air inlet pipe opening to disperse the airflow, this solution has less resistance to the airflow and smoother exhaust.

[0020] 2. This copper smelting flue gas purification, cooling and dust removal device is connected to a water source through a water pipe. The water source can be circulating water. The adsorbent is supplemented or replaced toward the two support plates through a feeding box. A sealing plate is provided to facilitate opening and closing of the feeding window and later maintenance. The annular water spraying part has a larger spraying area, and the water and gas are in more complete contact, thereby ensuring the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall stereogram of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the absorption tower of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the support plate and the guide part of the utility model;

[0024] Figure 4 This is a three-dimensional diagram of the adsorption component of the utility model;

[0025] Figure 5 It is a stereoscopic diagram of the guide part and the cutting part of the utility model.

[0026] Legend: 10. Absorption tower; 11. Support plate; 12. Water spraying part; 13. Air inlet pipe; 20. Guide part; 21. Cutting part. DETAILED DESCRIPTION

[0027] A copper smelting flue gas purification, cooling and dust removal device, such as Figure 1 and Figure 2 As shown, including:

[0028] The absorption tower 10 has a hollow tank structure, a pipe for exhaust is fixedly installed on the top surface of the absorption tower 10, and an air inlet pipe 13 for flue gas to enter is fixedly installed on the bottom of the absorption tower 10;

[0029] like Figure 2 , Figure 3 and Figure 4 as well as Figure 5 As shown, the adsorption assembly is arranged in the cavity of the absorption tower 10 and is used for cooling the flue gas. The adsorption assembly includes a support plate 11 and a water spraying member 12. The support plate 11 and the water spraying member 12 are both fixedly connected to the absorption tower 10. The water spraying member 12 is hollow inside and connected to a water source. Specifically, the adsorbent laid on the top surface of the support plate 11 is alkaline, and is neutralized by contacting the adsorbent on the support plate 11 through the rising airflow, thereby reducing the acidity. The water spraying member 12 is connected to the water source to spray water on the rising airflow and then achieve cooling treatment, thereby achieving cooling, dust removal and neutralization treatment of the flue gas. This is an existing well-known technology and will not be described in detail here.

[0030] The guide assembly is arranged at the port of the air inlet pipe 13 and is used to cut and divert the incoming flue gas. The guide assembly includes a guide portion 20 and a cutting portion 21. The guide portion 20 is fixedly connected to the air inlet pipe 13, and the cutting portion 21 is fixedly connected to the guide portion 20. A plurality of guide portions 20 are arranged in the absorption tower 10. The plurality of guide portions 20 cut and divert the flue gas together. The guide portion 20 forms a circular funnel structure. The smaller opening of the guide portion 20 faces the port of the air inlet pipe 13. The sizes of the plurality of guide portions 20 increase evenly in the direction away from the air inlet pipe 13. A cross arm is fixedly provided at the bottom end of each guide portion 20, and the cross arm is fixedly connected to another guide portion 20 below, and the lowest cross arm is fixedly connected to the top of the air inlet pipe 13. The cutting portion 21 forms a plate with a cross-shaped horizontal cross section, and the side wall of the cutting portion 21 is fixedly connected to the inner wall surface of the guide portion 20. Two adjacent cutting portions 21 are staggered. In this solution, by setting a plurality of guide portions 20, the funnel-shaped guide portion 20 is used to guide the gas discharged from the air inlet pipe 13, wherein the outer diameter of the guide portion 20 is smaller than the inner diameter of the absorption tower 10. Part of the flue gas discharged from the air inlet pipe 13 rises from the gap between the outer wall of the guide part 20 and the inner wall of the absorption tower 10, and the other part of the gas enters the cutting part 21 from the smaller port of the guide part 20 to be cut and diverted. The rising airflow after cutting continues to be cut by another cutting part 21 above. Through the staggered arrangement of multiple cutting parts 21, the angle of the cutting part 21 is forty-five degrees, and then the multiple cutting parts 21 form a blade-like structure to cut the rising airflow. Another identical water spraying part 12 is installed above the uppermost guide part 20 for spraying liquid. By cutting and dispersing the beam-shaped airflow discharged from the air inlet pipe 13, the contact area between the airflow and the liquid is increased, the cooling effect is improved, and at the same time, the gas is kept moist to facilitate adsorption by the adsorbent. The funnel-shaped guide part 20 can guide the gas and, compared with the prior art that uses a cover plate to block the air inlet pipe 13 to disperse the airflow, this solution has less resistance to the airflow and smoother exhaust. By setting the above structure, the flue gas temperature is reduced from 280±50℃ to 62℃, and the dust content is less than 10mg / m3, which solves the problems encountered in production.

[0031] like Figure 2 and Figure 3As shown, the support plate 11 forms a circular plate structure adapted to the chamber of the absorption tower 10, the circumferential surface of the support plate 11 is fixedly connected to the inner wall of the absorption tower 10, a plurality of air holes are evenly opened on the top of the support plate 11, a water spraying member 12 is arranged above the support plate 11, two support plates 11 are arranged in the absorption tower 10, a water spraying member 12 is arranged above each support plate 11, the water spraying member 12 forms an annular structure, spray holes are evenly opened at the bottom of the water spraying member 12, a water pipe is fixedly connected to the circumferential surface of the water spraying member 12, the water pipe is connected to a water source, a feeding window is opened on the outer wall of the absorption tower 10, a feeding box is fixedly installed on the wall of the absorption tower 10, and the feeding box Facing the feeding window, the feeding box is located on one side of the support plate 11, and the feeding box forms an open frame structure. One side of the feeding box forms an arc surface and fits the outer wall of the absorption tower 10. A sealing plate is provided at the opening on the other side of the feeding box, and the sealing plate is locked and fixed to the feeding box by fasteners. As a supplement to the above scheme, it is connected to a water source through a water pipe. The water source can be circulating water, and the adsorbent is supplemented or replaced through the feeding box toward the two support plates 11. The sealing plate is provided to facilitate opening and closing the feeding window and subsequent maintenance. The annular water spraying member 12 has a larger spraying area, and the water and gas are in more sufficient contact to ensure the cooling effect.

[0032] The working principle of the utility model is as follows: the outer diameter of the guide part 20 is smaller than the inner diameter of the absorption tower 10, part of the flue gas discharged from the air inlet pipe 13 rises from the gap between the outer wall of the guide part 20 and the inner wall of the absorption tower 10, and the other part of the gas enters the cutting part 21 from the smaller port of the guide part 20 and is cut and diverted, and the rising airflow after cutting continues to be cut by another cutting part 21 above, through the staggered arrangement of multiple cutting parts 21, the angle of the cutting part 21 is forty-five degrees as an example, and then multiple cutting parts 21 form a blade-like structure to cut the rising airflow, and another identical water spraying part 12 is installed above the uppermost guide part 20 for spraying liquid, by discharging the air inlet pipe 13 The beam-shaped airflow is cut and dispersed, increasing the contact area between the airflow and the liquid, improving the cooling effect, and at the same time, keeping the gas moist for easy adsorption by the adsorbent. The adsorbent laid on the top surface of the support plate 11 is alkaline, and is neutralized by the contact between the rising airflow and the adsorbent on the support plate 11 to reduce the acidity. The water spraying part 12 is connected to the water source to realize water spraying on the rising airflow and then realize cooling treatment, thereby achieving cooling, dust removal and neutralization treatment of the flue gas. It is connected to the water source through a water pipe, and the water source can be circulating water. The adsorbent is supplemented or replaced toward the two support plates 11 through the feeding box, and a sealing plate is provided to facilitate the opening and closing of the feeding window to ensure the later maintenance.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A copper smelting flue gas purification, cooling and dust removal device, characterized in that: include: An absorption tower (10) having a hollow tank structure, a pipe for exhaust gas being fixedly mounted on the top surface of the absorption tower (10), and an air inlet pipe (13) for flue gas to enter being fixedly mounted on the bottom of the absorption tower (10); An adsorption component is arranged in the cavity of the absorption tower (10) and is used for cooling the flue gas, the adsorption component comprising a support plate (11) and a water spraying member (12), the support plate (11) and the water spraying member (12) are both fixedly connected to the absorption tower (10), and the water spraying member (12) is hollow inside and connected to a water source; A guide assembly is arranged at a port of an air inlet pipe (13) and is used to cut and divert incoming flue gas, the guide assembly comprising a guide portion (20) and a cutting portion (21), the guide portion (20) being fixedly connected to the air inlet pipe (13), the cutting portion (21) being fixedly connected to the guide portion (20), a plurality of guide portions (20) being arranged in the absorption tower (10), and the plurality of guide portions (20) jointly cutting and diverting the flue gas.

2. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: The support plate (11) forms a circular plate structure adapted to the chamber of the absorption tower (10); the circumferential surface of the support plate (11) is fixedly connected to the inner wall of the absorption tower (10); a plurality of air holes are evenly provided on the top of the support plate (11); the water spraying member (12) is arranged above the support plate (11); two support plates (11) are arranged in the absorption tower (10); and a water spraying member (12) is arranged above each support plate (11).

3. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: The water spraying member (12) forms an annular structure, the bottom of the water spraying member (12) is evenly provided with spraying holes, the circumferential surface of the water spraying member (12) is fixedly connected to a water pipe, and the water pipe is connected to a water source.

4. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: The outer wall of the absorption tower (10) is provided with a feeding window, and a feeding box is fixedly mounted on the wall of the absorption tower (10), the feeding box facing the feeding window, and the feeding box is located on one side of the support plate (11).

5. The copper smelting flue gas purification, cooling and dust removal device according to claim 4 is characterized in that: The feeding box forms an open frame structure, one side of the feeding box forms an arc surface and fits the outer wall of the absorption tower (10), and a sealing plate is provided at the opening on the other side of the feeding box, and the sealing plate is locked and fixed to the feeding box by fasteners.

6. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: The guide portion (20) forms a circular funnel structure, the smaller opening of the guide portion (20) faces the port of the air intake pipe (13), and the sizes of the plurality of guide portions (20) increase uniformly in a direction away from the air intake pipe (13).

7. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: A cross arm is fixedly provided at the bottom end of each guide portion (20), the cross arm being fixedly connected to another guide portion (20) below, and the lowest cross arm being fixedly connected to the top end of the air intake pipe (13).

8. The copper smelting flue gas purification, cooling and dust removal device according to claim 1 is characterized by: The cutting portion (21) forms a plate with a cross-shaped horizontal cross section, the side wall of the cutting portion (21) is fixedly connected to the inner wall surface of the guide portion (20), and two adjacent cutting portions (21) are staggered.

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