Desorption device for purifying power wave circulating fluid and method of use thereof

Abstract

The present invention discloses a desorption device for purifying dynamic wave circulating liquid and a method for using the device, comprising: a cavity, the cavity being divided into a first chamber and a second chamber connected in upper and lower directions; a motor; a rotating shaft, the rotating shaft being transmission-connected to the motor and vertically distributed in the first chamber; a turntable, the turntable being fixedly connected to the bottom of the rotating shaft; a feed port, the feed port being opened on the side of the first chamber and located above the turntable; a receiving pipe, the receiving pipe being located in the second chamber and located below the first chamber; a conical opening, the conical opening being formed at the top of the receiving pipe and expanding outwards; an air inlet; an exhaust port; and a liquid discharge port. The beneficial effect of the present invention is that the circulating liquid is driven by the turntable to collide with the inner wall of the first chamber and is mixed with the upward-flowing air, so that the sulfur dioxide gas in the circulating liquid is precipitated and the dust particles are separated from the circulating liquid at the same time, so that the separation of the three states of gas, liquid and solid is achieved in one step, and the operation is simple and efficient.

Description

Technical Field

[0001] The present invention relates to a power wave washing system, in particular to a desorption device for purifying power wave circulating fluid and a use method thereof. Background Art

[0002] In the pyrite acid production system, due to incomplete dust collection by cyclone dust collectors or electrostatic dust collectors, some dust still enters the purification system along with the flue gas. In the purification system, as the acid concentration and solid content of the power wave circulating liquid increase, the power wave circulating liquid needs to be regularly discharged. Because a large amount of SO2 gas is dissolved in the circulating liquid, SO2 gas is prone to escape during the discharge process, affecting the surrounding environment. Therefore, before the circulating liquid is discharged, it needs to be desorbed and recovered by a desorption device to remove the dissolved SO2 gas. However, because the circulating liquid contains a large amount of solid tiny particles, conventional desorption devices are difficult to adapt to the working conditions and are prone to clogging, resulting in unsatisfactory results.

[0003] Chinese utility model patent publication number CN205570047U discloses a dynamic wave scrubber with automatic sewage discharge function, which mainly includes a scrubber, a purified flue gas outlet, a conical settling bucket, a sewage outlet, a sewage pump, a dynamic wave reverse nozzle, a reverse nozzle, an absorption liquid circulation pump, an absorption liquid specific gravity monitor, an absorption liquid replenishment control valve, and an absorption liquid level monitor; it improves the deficiency of using the same circulation pipeline for the circulating liquid outlet pipeline and the sewage pipe, but does not involve the treatment of high-solid content circulating liquid.

[0004] Another example is China Utility Model Patent Publication No. CN209952549U, which discloses a power wave washing tower with an automatic sewage discharge function. The tower includes an outer shell and four supporting legs. The outer wall of the outer shell is plugged with an inner shell, and the outer wall of the inner shell is plugged with a power wave reverse jet pipe. The outer wall of the power wave reverse jet pipe is bolted to an air outlet hopper. The inner wall of the inner shell is bolted to an arc-shaped baffle, and the inner walls on both sides of the inner shell are provided with a first through hole. The bottom inner wall of the inner shell is bolted to a liquid pump, and the output end of the liquid pump is flanged to a liquid outlet pipe. The outer wall of the inner shell is provided with second through holes distributed at equal distances. By providing an arc-shaped baffle and an outer shell, the absorption liquid that has absorbed dust and impurities can be stored and allowed to stand. An arc-shaped drainage plate is provided. This patent only stores and allows the absorption liquid to stand, and does not further process or utilize it. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing circulating fluid with high solid content cannot be desorbed by a general desorption device. To this end, a desorption device for purifying the dynamic wave circulating fluid and a method for using the same are provided.

[0006] The technical solution of the present invention is: a desorption device for purifying power wave circulating liquid, comprising: a cavity, the cavity is divided into a first chamber and a second chamber connected to each other up and down, the second chamber is larger than the first chamber; a motor, the motor is installed on the top of the first chamber; a rotating shaft, the rotating shaft is connected to the motor and is vertically distributed in the first chamber; a turntable, the turntable is fixed to the bottom of the rotating shaft, and the edge of the turntable is in clearance with the first chamber; a feed port, the feed port is opened on the side of the first chamber and is located between the turntable and the sealing plate; a receiving pipe, the receiving pipe is located in the second chamber and is located at the first chamber Below; an annular connecting plate, the outer edge of the annular connecting plate is fixedly connected to the inner wall of the second chamber, and the inner edge of the annular connecting plate is fixedly connected to the bottom outer wall of the receiving pipe; a conical opening portion, the conical opening portion is formed at the top of the receiving pipe and expands outward, the top inner diameter of the conical opening portion is larger than the inner diameter of the first chamber, and the conical opening portion and the top inner wall of the second chamber are gap-fitted; an air inlet, the air inlet is opened at the top of the second chamber; an exhaust port, the exhaust port is opened on the side wall of the first chamber and is located above the feed port; a liquid discharge port, the liquid discharge port is opened on the side wall of the second chamber and is located below the annular connecting plate.

[0007] The improvement of the above scheme is that it also includes a sealing plate, which is sleeved on the middle of the rotating shaft and its outer edge is sealed with the inner wall of the first chamber. A vertical air vent is opened on the sealing plate, and the sealing plate is located above the feed port and below the exhaust port.

[0008] In the above solution, there is at least one vertical air vent.

[0009] A further improvement of the above scheme is that it also includes: a sieve plate, which is slidably fitted in the receiving pipe; a bottom plate, which is fixed to the inner wall of the second chamber and is located below the annular connecting plate, and a drainage channel is formed between the bottom plate and the annular connecting plate, and the drainage port is connected to the drainage channel; a cylinder, which is located between the bottom plate and the bottom of the second chamber, and the piston rod of the cylinder passes through the bottom plate and extends into the receiving pipe and is fixed to the sieve plate.

[0010] A further improvement of the above solution is that the bottom of the storage pipe is provided with a limit block extending toward the center thereof.

[0011] In the above solution, the upper surface of the turntable is provided with a plurality of flow channels extending from the center to the surrounding areas.

[0012] The method for using the desorption device for purifying the power wave circulating liquid comprises the following steps: injecting air into the air inlet, starting the motor, driving the turntable to rotate the rotating shaft, injecting the circulating liquid into the feed port, the circulating liquid falling on the turntable and then being thrown toward the inner wall of the first chamber, while the rotation of the turntable drives the air to be sucked into the first chamber, the sucked air contacts the circulating liquid in the gap between the edge of the turntable and the inner wall of the first chamber, precipitating the sulfur dioxide gas in the circulating liquid, and separating the dust particles in the circulating liquid from the circulating liquid, the circulating liquid and the dust particles enter the receiving pipe through the tapered opening and finally fall to the bottom of the second chamber to form an upper layer of clear liquid and a lower layer of high-solid content waste acid, the drain port is opened, and the upper layer of clear liquid overflows into the power wave for recycling.

[0013] The beneficial effect of the present invention is that the circulating liquid is driven by the turntable to collide with the inner wall of the first chamber and mix with the upward-flowing air, so that the sulfur dioxide gas in the circulating liquid is precipitated and the dust particles are separated from the circulating liquid at the same time, so that the separation of gas, liquid and solid three states is achieved in one step. The operation is simple and efficient. The cylinder drives the screen plate to move up and down to prevent the dust particles from accumulating on the screen plate for a long time and causing it to be blocked. At the same time, a vertical force is applied to the air, circulating liquid and dust particles at the edge of the turntable, thereby improving the separation effect of air, circulating liquid and dust particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of embodiment 1 of the present invention;

[0015] Figure 2 is a schematic diagram of embodiment 2 of the present invention;

[0016] Figure 3 is a schematic diagram of embodiment 3 of the present invention;

[0017] Figure 4 It is a schematic diagram of a turntable of the present invention;

[0018] In the figure, 1. first chamber, 2. second chamber, 3. motor, 4. rotating shaft, 5. turntable, 6. feed port, 7. receiving pipe, 8. annular connecting plate, 9. conical opening, 10. air inlet, 11. exhaust port, 12. drain port, 13. sealing plate, 14. vertical air vent, 15. sieve plate, 16. bottom plate, 17. cylinder, 18. limit block, 19. flow channel. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, embodiment 1: the present invention includes a cavity, which is divided into a first chamber 1 and a second chamber 2 connected up and down, the second chamber is larger than the first chamber, the bottom of the first chamber is open, and is connected to the top of the second chamber through the opening; a motor 3, the motor is installed on the top of the first chamber; a rotating shaft 4, the rotating shaft is connected to the motor and is vertically distributed in the first chamber; a turntable 5, the turntable is fixed to the bottom of the rotating shaft, and the edge of the turntable is matched with the gap of the first chamber, and the gap here can be referred to as gap 1; a feed port 6, the feed port is opened on the side of the first chamber and is located above the turntable; a receiving pipe 7, the receiving pipe is located in the second chamber and below the first chamber; an annular A connecting plate 8, wherein the outer edge of the annular connecting plate is fixedly connected to the inner wall of the second chamber, and the inner edge of the annular connecting plate is fixedly connected to the bottom outer wall of the receiving pipe, and the annular connecting plate is used to support the receiving pipe; a conical opening portion 9, wherein the conical opening portion is formed at the top of the receiving pipe and expands outward, and the top inner diameter of the conical opening portion is larger than the inner diameter of the first chamber, and the conical opening portion and the top inner wall of the second chamber are gap-matched, and the gap here can be referred to as gap 2; an air inlet 10, wherein the air inlet is opened at the top of the second chamber; an exhaust port 11, wherein the exhaust port is opened on the side wall of the first chamber and is located above the feed port; a liquid discharge port 12, wherein the liquid discharge port is opened on the side wall of the second chamber and is located below the annular connecting plate.

[0021] The method for using a desorption device for purifying power wave circulating liquid comprises the following steps: injecting air into the air inlet, starting the motor, driving the turntable to rotate the rotating shaft, injecting circulating liquid into the feed port, causing the circulating liquid to fall on the turntable and then be thrown toward the inner wall of the first chamber, while the rotation of the turntable drives the air to be sucked into the first chamber, the sucked air contacts the circulating liquid in the gap between the edge of the turntable and the inner wall of the first chamber, precipitating the sulfur dioxide gas in the circulating liquid, and separating the dust particles in the circulating liquid from the circulating liquid, the circulating liquid and the dust particles enter the receiving pipe through the tapered opening and finally fall to the bottom of the second chamber to form an upper layer of clear liquid and a lower layer of high-solid content waste acid, thereby shortening the static sedimentation time of the circulating liquid, opening the drain port, and allowing the upper layer of clear liquid to overflow into the power wave for recycling.

[0022] In the above embodiment, the feed port and the air inlet are preferably inclined downward, so that the circulating liquid discharged from the feed port can fall as far as possible into the central area of the turntable, and the air entering from the air inlet can be sucked into the first chamber more quickly.

[0023] Example 2: Figure 2As shown, the difference from Example 1 is that it also includes a sealing plate 13, which is sleeved on the middle of the rotating shaft and its outer edge is sealed with the inner wall of the first chamber. The sealing plate is provided with a vertical air vent 14 that is centered. The sealing plate is located above the feed port and below the exhaust port. When the rotating shaft rotates, it can drive the sealing plate to rotate synchronously, and the gap 1-gap 2-vertical air vent forms an air path, through which air and precipitated sulfur dioxide gas are discharged. Due to the rotation of the vertical air vent, the air path undergoes regular changes, which is more conducive to the precipitation of sulfur dioxide gas and the separation of dust particles. The vertical air vent can be one, two, or even three.

[0024] Example 3: Figure 3 As shown, the difference from Example 1 is that it also includes: a sieve plate 15, which slides within the receiving duct; a base plate 16, which is fixedly attached to the inner wall of the second chamber and located below the annular connecting plate. A drainage channel is formed between the base plate and the annular connecting plate, and the drainage port is connected to the drainage channel; and a cylinder 17, which is located between the base plate and the bottom of the second chamber. The piston rod of the cylinder passes through the base plate and extends into the receiving duct to be fixedly attached to the sieve plate. The up and down movement of the cylinder piston rod drives the sieve plate to slide up and down. The center of the sieve plate has no sieve holes and is connected to the cylinder piston rod. The rest of the sieve plate has several sieve holes distributed throughout to filter dust particles. As the sieve plate slides up and down, dust particles also vibrate up and down to prevent them from clogging the sieve holes. This also generates an upward thrust, supporting the circulating liquid in the air path and allowing it to mix with the air for a longer time. To prevent the sieve plate from detaching from the receiving duct, a stopper 18 extending toward the center of the receiving duct is provided at the bottom. The circulating liquid after separation of dust particles is clear liquid and can be directly discharged from the drain port and enter the power wave circulation for use.

[0025] In the above embodiment, the upper surface of the turntable is provided with a plurality of flow channels 19 extending from the center to the periphery. The flow channels can provide a medium for the circulating fluid to radiate outward and disperse. The above embodiments can be combined as needed, and as long as the resulting solutions do not conflict with each other, they are all within the scope of protection of the present invention.

Claims

1. A desorption device for purifying power wave circulating fluid, characterized by: include: A cavity, the cavity being divided into a first cavity (1) and a second cavity (2) connected in an upper and lower manner, the second cavity being larger than the first cavity; A motor (3), the motor being mounted on the top of the first chamber; a rotating shaft (4), the rotating shaft being transmission-connected to the motor and being vertically distributed in the first chamber; a turntable (5), the turntable being fixedly connected to the bottom of the rotating shaft, the edge of the turntable being in clearance with the first chamber; a feed port (6), the feed port being opened on the side of the first chamber and being located above the turntable; a receiving pipe (7), the receiving pipe being located in the second chamber and being located below the first chamber; an annular connecting plate (8), the outer edge of the annular connecting plate being fixedly connected to the inner wall of the second chamber, the inner edge of the annular connecting plate being in clearance with the bottom of the receiving pipe; The outer wall of the first chamber is fixedly connected; a conical opening portion (9), the conical opening portion is formed at the top of the receiving pipe and expands outward, the inner diameter of the top of the conical opening portion is larger than the inner diameter of the first chamber, and the conical opening portion is clearance-matched with the inner wall of the top of the second chamber; an air inlet (10), the air inlet is opened at the top of the second chamber; an exhaust port (11), the exhaust port is opened at the side wall of the first chamber and is located above the feed port; a liquid discharge port (12), the liquid discharge port is opened at the side wall of the second chamber and is located below the annular connecting plate; and further comprising: a sieve plate (15), the sieve plate being slidably fitted in the receiving pipe; A bottom plate (16), the bottom plate is fixedly connected to the inner wall of the second chamber and is located below the annular connecting plate, a drainage channel is formed between the bottom plate and the annular connecting plate, and the drainage port is connected to the drainage channel; a cylinder (17), the cylinder is located between the bottom plate and the bottom of the second chamber, the piston rod of the cylinder passes through the bottom plate and extends into the receiving pipe and is fixed to the screen plate; a plurality of flow channels (19) extending from the center to the surrounding areas are opened on the upper surface of the turntable.

2. The desorption device for purifying the power wave circulating fluid according to claim 1, characterized in that: It also includes a sealing plate (13), which is sleeved on the middle of the rotating shaft and has an outer edge that is sealed with the inner wall of the first chamber. A vertical air vent (14) is provided on the sealing plate, and the sealing plate is located above the feed port and below the exhaust port.

3. The desorption device for purifying the power wave circulating fluid according to claim 2, characterized in that: There is at least one vertical air vent.

4. The desorption device for purifying the power wave circulating fluid according to claim 3, characterized in that: The bottom of the receiving pipe is provided with a limiting block (18) extending toward the center thereof.

5. The method for using the desorption device for purifying power wave circulating fluid according to any one of claims 1 to 4, characterized in that: The following steps are involved: Inject air into the air inlet, start the motor, drive the turntable to rotate, and inject circulating liquid into the feed port. The circulating liquid falls on the turntable and is then thrown to the inner wall of the first chamber. At the same time, the rotation of the turntable drives air to be sucked into the first chamber. The sucked air contacts the circulating liquid in the gap between the edge of the turntable and the inner wall of the first chamber, precipitating the sulfur dioxide gas in the circulating liquid. At the same time, the dust particles in the circulating liquid are also separated from the circulating liquid. The circulating liquid and dust particles enter the receiving pipe through the tapered opening and finally fall to the bottom of the second chamber to form an upper layer of clear liquid and a lower layer of high-solid content waste acid. The drain port is opened, and the upper layer of clear liquid overflows into the power wave for recycling.

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