White mud desulfurization device

Abstract

The utility model discloses a white mud desulfurization device, which is applied to the technical field of flue gas desulfurization and comprises a liquid conveying mechanism and a driving mechanism, the liquid conveying mechanism pumps out desulfurization liquid in a liquid storage tank, conveys the desulfurization liquid into a spraying ring and sprays the desulfurization liquid out of an atomizing spray head, and at the moment, a starting mechanism drives a connecting shaft and the spraying ring to rotate; the atomized desulfurizing agent can be diffused all around under the action of centrifugal force, so that the spraying area is increased, the flue gas is in full contact with the desulfurizing agent, and the desulfurizing agent in the tower body flows back into the liquid storage tank through the return pipe, is filtered by the filter screen and then is pumped out by the centrifugal pump, so that the aim of circulating spraying is fulfilled; and limitation on the filter screen can be relieved through the fixing mechanism, and the filter screen can be conveniently taken out of the liquid storage box.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas desulfurization, in particular to a white mud desulfurization device. Background Art

[0002] White mud is a major byproduct of the alkali recovery process for black liquor in the papermaking industry. Its primary chemical component is calcium carbonate, along with some calcium oxide and impurities such as silicon and metal salts. Common methods for harmlessly treating white mud include calcining it into lime for recycling in the alkali recovery process, extracting refined calcium carbonate for use as papermaking filler, and producing cement, coatings, and other building materials. Alternatively, a simpler and more practical method is to use it as a flue gas desulfurizer in coal-fired boilers.

[0003] At present, the Chinese utility model with the announcement number CN219252178U discloses a white mud flue gas desulfurization tower, which relates to the field of flue gas desulfurization. Its beneficial effects are: unreacted desulfurizer flows into the bottom of the tower body, a part of the flue gas in the water inlet pipe can react with the flue gas at the bottom of the tower body, and the other part rises and reacts with the desulfurizer in the spray system, thereby improving the desulfurization efficiency of the flue gas and the desulfurizer; the flue gas in the water inlet pipe flows out along the air outlet, and the flue gas enters the liquid layer of the desulfurizer and disperses into bubbles, increasing the contact area between the flue gas and the desulfurizer, thereby improving the reaction effect of the flue gas and the desulfurizer.

[0004] In the above technology, the desulfurizer is atomized to increase the contact area between the flue gas and the desulfurizer, but the range of the atomized spray is still limited, which is not convenient for the flue gas and the desulfurizer to fully contact each other. At the same time, the filter is set in the spray pipe. When the mesh of the filter is blocked, it is inconvenient to disassemble and clean it. Utility Model Content

[0005] The utility model aims at a white mud desulfurization device, which has the advantages of enabling flue gas to fully contact with a desulfurizer and facilitating the disassembly and cleaning of a filter screen.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a white mud desulfurization device, comprising a tower body, a connecting shaft is provided on the top of the tower body, the bottom of the connecting shaft passes through the top of the tower body and is fixedly connected to a spray ring, atomizing nozzles are distributed at the bottom of the spray ring, a driving mechanism is provided on the top of the tower body, a liquid storage tank is provided below the tower body, an infusion mechanism is provided on one side of the liquid storage tank, two filters are provided inside the liquid storage tank, the liquid storage tank includes a return pipe connected to the bottom of the tower body, the bottom of the return pipe is connected to the top of the liquid storage tank, and a fixing mechanism is provided on the inner wall of the liquid storage tank.

[0007] The above technical solution is adopted: the centrifugal pump and the motor are started, the centrifugal pump extracts the desulfurization liquid in the liquid storage tank through the liquid extraction pipe, and transports it from the liquid delivery pipe to the spray ring, and sprays it through the atomizing nozzle. At this time, the motor drives the driving wheel to rotate. When the driving wheel rotates, the driven wheel can drive the connecting shaft to rotate, and then the spray ring can rotate. Under the action of centrifugal force, the atomized desulfurizer can be diffused to the surroundings, thereby increasing the spraying area and allowing the flue gas to fully contact the desulfurizer; the desulfurizer in the tower body flows back to the liquid storage tank through the reflux pipe, is filtered through the filter screen, and then extracted by the centrifugal pump, thereby achieving the purpose of circulating spraying. When the filter screen needs to be disassembled and cleaned, the fixing bolt is moved to make the two connecting blocks close to each other, and the limit pin is separated from the limit hole. At this time, the spring is compressed, thereby releasing the restriction on the filter screen, making it easy to remove it from the liquid storage tank.

[0008] The utility model is further configured as follows: the driving mechanism includes a motor fixed to the top of the tower body, the output end of the motor is fixedly connected to a driving wheel, the outer side of the driving wheel is meshedly connected to a driven wheel, and the connecting shaft is fixedly connected to the inner ring of the driven wheel.

[0009] The above technical solution can drive the spray ring to spread the atomized liquid to all sides.

[0010] The utility model is further configured such that the infusion mechanism includes a centrifugal pump arranged on one side of the liquid storage tank, a liquid extraction tube is provided at the water extraction end of the centrifugal pump, one end of the liquid extraction tube is connected to one side of the liquid storage tank, and an infusion tube is provided at the drainage end of the centrifugal pump.

[0011] By adopting the above technical solution, the desulfurizer in the liquid storage tank can be extracted.

[0012] The present invention is further configured such that one end of the infusion tube passes through the connecting shaft and is located in the spray ring.

[0013] The above technical solution is adopted to facilitate the delivery of the desulfurizer into the spray ring.

[0014] The utility model is further configured such that the top of the tower body is fixedly connected with a support rod, the top of the support rod is fixedly connected with a supporting ring, and the top of the supporting ring is fixedly connected with a limiting ring by screws.

[0015] The above technical solution can be used to easily reinforce the infusion tube.

[0016] The utility model is further configured such that the fixing mechanism includes a limit pin slidably connected to the inner wall of the liquid storage tank, the number of the limit pins is four, and two form a group, one end of the limit pin is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a spring, and a limit hole is provided on one side of the filter screen.

[0017] The above technical solution makes it easy to disassemble and assemble the filter screen, thereby facilitating its replacement.

[0018] The utility model is further configured such that a sliding block is fixedly connected to one side of the connecting block.

[0019] The above technical solution can ensure stable movement of the connecting block.

[0020] The present invention is further configured such that a fixing bolt is fixedly connected to the top of the connecting block.

[0021] Adopting the above technical solution: it is convenient to move the connecting block to make it moveable.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1: Start the infusion mechanism and the driving mechanism. The infusion mechanism extracts the desulfurization liquid in the liquid storage tank and transports it to the spray ring to be sprayed from the atomizing nozzle. At this time, the starting mechanism drives the connecting shaft and the spray ring to rotate. Under the action of centrifugal force, the atomized desulfurizer can be diffused to the surroundings, thereby increasing the spray area and making the flue gas fully contact with the desulfurizer.

[0024] 2: The desulfurizer in the tower body flows back to the liquid storage tank through the reflux pipe, is filtered through the filter and then pumped out by the centrifugal pump, thereby achieving the purpose of circulating spraying. When the filter needs to be disassembled and cleaned, the restriction on the filter can be released through the fixing mechanism, making it easy to take it out of the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic structural diagram of the interior of the tower body of the utility model;

[0027] Figure 3 This is a structural diagram of the infusion tube and the connecting shaft of the utility model;

[0028] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0029] Figure numerals: 1, tower body; 2, connecting shaft; 3, spray ring; 4, atomizing nozzle; 5, motor; 6, driving wheel; 7, driven wheel; 8, liquid storage tank; 81, return pipe; 9, filter screen; 10, centrifugal pump; 11, suction pipe; 12, infusion pipe; 13, support rod; 14, support ring; 15, limiting ring; 16, limiting pin; 17, connecting block; 18, spring; 19, limiting hole; 20, slider. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 、 Figure 2 and Figure 3 A white mud desulfurization device includes a tower body 1, a connecting shaft 2 is provided at the top of the tower body 1, the bottom of the connecting shaft 2 passes through the top of the tower body 1 and is fixedly connected to a spray ring 3, and atomizing nozzles 4 are distributed at the bottom of the spray ring 3. A driving mechanism is provided at the top of the tower body 1, a liquid storage tank 8 is provided at the bottom of the tower body 1, and an infusion mechanism is provided on one side of the liquid storage tank 8. The bottom of the tower body 1 is conical.

[0033] One side of the tower body 1 is connected to an air inlet pipe, and the flue gas enters the tower body 1 from the air inlet pipe. The top of the tower body 1 is connected to an exhaust pipe for discharging the flue gas after desulfurization. A bearing is provided on the outside of the connecting shaft 2, and the bearing is fixedly connected to the top of the inner cavity of the tower body 1 by screws.

[0034] refer to Figure 1 and Figure 2 The driving mechanism includes a motor 5 fixed to the top of the tower body 1, the output end of the motor 5 is fixedly connected to the driving wheel 6, the outer side of the driving wheel 6 is meshed with the driven wheel 7, and the connecting shaft 2 is fixedly connected to the inner ring of the driven wheel 7.

[0035] refer to Figure 1 and Figure 2 The infusion mechanism includes a centrifugal pump 10 arranged on one side of the liquid storage tank 8, a liquid extraction pipe 11 is provided at the water extraction end of the centrifugal pump 10, one end of the liquid extraction pipe 11 is connected to one side of the liquid storage tank 8, and a liquid infusion pipe 12 is provided at the drainage end of the centrifugal pump 10.

[0036] refer to Figure 3 One end of the infusion tube 12 passes through the connecting shaft 2 and is located in the spray ring 3.

[0037] refer to Figure 1 and Figure 2 The top of the tower body 1 is fixedly connected to a support rod 13, and the top of the support rod 13 is fixedly connected to a supporting ring 14. The top of the supporting ring 14 is fixedly connected to a limiting ring 15 by screws. The supporting ring 14 and the limiting ring 15 are fixed to the outside of the infusion tube 12 by fixing screws, and the supporting force is provided by the support rod 13, thereby reinforcing the infusion tube 12 to prevent it from shaking during infusion.

[0038] Brief description of the usage process: Start the centrifugal pump 10 and the motor 5. The centrifugal pump 10 extracts the desulfurization liquid in the liquid storage tank 8 through the liquid extraction pipe 11, and transports it to the spray ring 3 from the liquid delivery pipe 12, and sprays it through the atomizing nozzle 4. At this time, the motor 5 drives the driving wheel 6 to rotate. When the driving wheel 6 rotates, the driven wheel 7 drives the connecting shaft 2 to rotate, and then the spray ring 3 rotates. Under the action of centrifugal force, the atomized desulfurizer can be diffused to the surroundings, thereby increasing the spraying area and making the flue gas fully contact with the desulfurizer.

[0039] Example 2:

[0040] refer to Figure 1 、 Figure 2 and Figure 4 A white mud desulfurization device includes a tower body 1, a liquid storage tank 8 is arranged below the tower body 1, two filter screens 9 are arranged inside the liquid storage tank 8, the liquid storage tank 8 includes a reflux pipe 81 connected to the bottom of the tower body 1, the bottom of the reflux pipe 81 is connected to the top of the liquid storage tank 8, and a fixing mechanism is provided on the inner wall of the liquid storage tank 8.

[0041] Since the filter screens 9 are in two groups, when one of the filter screens 9 is disassembled for cleaning, the filtering effect can still be achieved through the other filter screen 9, thus avoiding filtering interruption.

[0042] refer to Figure 4 The fixing mechanism includes a limit pin 16 slidably connected to the inner wall of the liquid storage tank 8. There are four limit pins 16, and two are in a group. One end of the limit pin 16 is fixedly connected to a connecting block 17, and one side of the connecting block 17 is fixedly connected to a spring 18. A limit hole 19 is opened on one side of the filter screen 9.

[0043] refer to Figure 4 A slider 20 is fixedly connected to one side of the connecting block 17, and a slide groove is provided on the inner wall of the liquid storage tank 8. The slider 20 is slidably connected to the slide groove. The connecting block 17 can drive the slider 20 and move it in the slide groove, so that the connecting block 17 can remain stable during movement.

[0044] refer to Figure 4 The top of the connecting block 17 is fixedly connected with a fixing bolt.

[0045] Brief description of the usage process: the desulfurizer in the tower body 1 flows back to the liquid storage tank 8 through the reflux pipe 81, is filtered through the filter screen 9 and then pumped out by the centrifugal pump 10, thereby achieving the purpose of circulating spraying. When the filter screen 9 needs to be disassembled and cleaned, the fixing bolt is moved to make the two connecting blocks 17 close to each other, and the limit pin 16 is separated from the limit hole 19. At this time, the spring 18 is compressed, thereby releasing the restriction on the filter screen 9, making it easier to remove it from the liquid storage tank 8. When a single filter screen 9 needs to be disassembled, it is only necessary to move the connecting block 17 on that side to make the limit pin 16 on that side disengage from the limit hole 19. The operation is convenient.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A white mud desulfurization device, comprising a tower body (1), characterized in that: The top of the tower body (1) is provided with a connecting shaft (2), the bottom of the connecting shaft (2) passes through the top of the tower body (1) and is fixedly connected to a spray ring (3), the bottom of the spray ring (3) is distributed with atomizing nozzles (4), the top of the tower body (1) is provided with a driving mechanism, a liquid storage tank (8) is provided below the tower body (1), a liquid infusion mechanism is provided on one side of the liquid storage tank (8), two filter screens (9) are provided inside the liquid storage tank (8), the liquid storage tank (8) includes a return pipe (81) connected to the bottom of the tower body (1), the bottom of the return pipe (81) is connected to the top of the liquid storage tank (8), and the inner wall of the liquid storage tank (8) is provided with a fixing mechanism.

2. A white mud desulfurization device according to claim 1, characterized in that: The driving mechanism comprises a motor (5) fixed to the top of the tower body (1); the output end of the motor (5) is fixedly connected to a driving wheel (6); the outer side of the driving wheel (6) is meshingly connected to a driven wheel (7); and the connecting shaft (2) is fixedly connected to the inner ring of the driven wheel (7).

3. A white mud desulfurization device according to claim 1, characterized in that: The infusion mechanism comprises a centrifugal pump (10) arranged on one side of the liquid storage tank (8); a liquid extraction pipe (11) is provided at the water extraction end of the centrifugal pump (10); one end of the liquid extraction pipe (11) is communicated with one side of the liquid storage tank (8); and a liquid infusion pipe (12) is provided at the drainage end of the centrifugal pump (10).

4. A white mud desulfurization device according to claim 3, characterized in that: One end of the liquid infusion tube (12) passes through the connecting shaft (2) and is located inside the spray ring (3).

5. The white mud desulfurization device according to claim 1, characterized in that: The top of the tower body (1) is fixedly connected to a support rod (13), the top of the support rod (13) is fixedly connected to a support ring (14), and the top of the support ring (14) is fixedly connected to a limiting ring (15) via screws.

6. The white mud desulfurization device according to claim 1, characterized in that: The fixing mechanism comprises a limit pin (16) slidably connected to the inner wall of the liquid storage tank (8), the number of the limit pins (16) is four, and two form a group, one end of the limit pin (16) is fixedly connected to a connecting block (17), one side of the connecting block (17) is fixedly connected to a spring (18), and a limit hole (19) is provided on one side of the filter screen (9).

7. A white mud desulfurization device according to claim 6, characterized in that: A slider (20) is fixedly connected to one side of the connecting block (17).

8. The white mud desulfurization device according to claim 6, characterized in that: The top of the connecting block (17) is fixedly connected with a fixing bolt.

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