Desulfurized lime powder processing equipment and processing method

By introducing blowing mechanisms and scrapers into the desulfurized lime powder processing equipment, the problems of low grinding efficiency and waste of powder in existing equipment are solved, and the recycling grinding and efficient desulfurization of limestone are achieved.

CN119771597AInactive Publication Date: 2025-04-08林佳禄
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Patent Information

Application Number
CN202411787879.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-04-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The grinding efficiency of existing desulfurization lime powder processing equipment is low, and lime powder is prone to accumulate in the corners of the grinding cylinder, causing residual waste.

Method used

A desulfurization lime powder processing equipment including a blowing mechanism and a scraper is designed. The blowing mechanism blows up the accumulated limestone powder through the wind power generated by the turbofan, and the scraper throws the powder outwards to ensure it is re-grinded.

Benefits of technology

The recyclable grinding of limestone is achieved, the grinding efficiency is improved, and the residual waste of lime powder is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of lime powder production and processing, and specifically, to a desulfurized lime powder processing equipment and a processing method. In order to solve the above technical problems, the present invention provides such a desulfurized lime powder processing equipment, including a base, a first motor, a bevel gear and a feeding mechanism, wherein the first motor is installed at the lower part of the base, and the output shaft of the first motor is connected to a bevel gear, and the base is provided with a feeding mechanism. By installing a blowing mechanism, the wind energy generated by the turbofan will enter the grinding cylinder through the first one-way air valve, and the wind will blow up the accumulated limestone powder particles, and the limestone particles that are not ground thoroughly enough will be blown up and contact with the grinding wheel group, and will be ground again when in contact, so that the present invention can achieve the recycling of limestone particles.
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Description

Technical Field

[0001] The invention relates to the technical field of lime powder production and processing, and in particular to a desulfurized lime powder processing device and a processing method. Background Art

[0002] Desulfurized lime powder is a commonly used desulfurizer. Its main function is to be used for flue gas desulfurization, that is, to remove sulfur dioxide from flue gas containing sulfur dioxide, thereby reducing the emission of atmospheric pollutants; it can effectively reduce sulfur dioxide emissions and improve the quality of the atmospheric environment; the development of the steel industry is inseparable from environmental protection, and desulfurized lime powder, as an important environmentally friendly material, plays an indispensable role in steel production.

[0003] According to a patent authorization publication number CN111420739B, the announcement date is 2021-12-10, a desulfurized quicklime powder fine grinding and finishing process includes a bottom plate, a support frame and a grinding device. The upper end of the bottom plate is symmetrically equipped with a support frame, and a grinding device is installed between the support frames. The grinding device is located at the upper end of the bottom plate. The device is placed in the shell frame after crushing the limestone raw material by an external crusher. The grinding mechanism can evenly crush and grind the limestone raw material, the screening mechanism can screen the ground raw material, and the scraping mechanism can scrape the raw material. The grinding mechanism is conical (narrow at the top and wide at the bottom). Since the crushing mechanism of this device uses a spiral blade to initially crush the limestone and cannot be cyclically crushed, the crushed limestone is in large blocks. At this time, the large limestone blocks will directly enter the grinding step. Since the grinding mechanism is conical, narrow at the top and wide at the bottom, the initially crushed limestone will accumulate on the top of the grinding mechanism. The limestone approaches the grinding mechanism only by its own gravity. While the grinding mechanism rotates, it grinds the limestone above it. Since the limestone blocks are large and the grinding speed is slow, the grinding efficiency is low, and the lime powder is easily accumulated in the corners of the grinding cylinder, resulting in residual waste.

[0004] Therefore, we are in urgent need of a desulfurized lime powder processing equipment and a processing method. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a desulfurized lime powder processing equipment and a processing method.

[0006] In order to solve the above technical problems, the present invention provides a desulfurized lime powder processing equipment, including a base, a first motor, a bevel gear, a feeding mechanism, a grinding mechanism, a blowing mechanism and a desulfurization mechanism. The first motor is installed at the lower part of the base, and the middle part of the base is provided with a feeding mechanism. The feeding mechanism includes a cylinder, a first partition, a grinding cylinder, an air outlet pipe, a second partition and a feeding cylinder. The middle part of the base is provided with a cylinder, the first partition is connected to the cylinder, and through holes are evenly opened on the outer edge of the first partition. The cylinder is connected with a grinding cylinder, which is located above the first partition and fits with it. The grinding cylinder and the cylinder are jointly provided with an air outlet pipe, and a one-way valve is installed in the air outlet pipe. The cylinder is connected with a second partition, and a feed port is provided on the second partition. The second partition is located at the grinding A discharge barrel is provided on the second partition above the grinding cylinder, and a grinding mechanism is provided on the base. The grinding mechanism and the discharge mechanism rotate in cooperation. The grinding mechanism includes a rotating shaft, a grinding wheel group and a scraper. A rotating shaft is rotatably provided on the base. The output shaft of the first motor and the lower part of the rotating shaft are connected with bevel gears, and the two bevel gears are meshed with each other. A grinding wheel group is installed on the rotating shaft, and the grinding wheel group is rotatably connected to the grinding cylinder. At least four scrapers are connected to the bottom of the grinding wheel group, and the scrapers are fitted with the first partition. A blowing mechanism is provided on the rotating shaft and the grinding cylinder. The blowing mechanism includes a turbofan and a first one-way air valve. A turbofan is connected to the rotating shaft, and the turbofan is located between the cylinder body and the first partition. The lower part of the grinding cylinder is symmetrically connected with the first one-way air valve, and a desulfurization mechanism is provided on the second partition.

[0007] The lower material barrel is rotatably connected to the second partition, and a discharge port is provided at the bottom of the lower material barrel, and the discharge port can overlap with the feed port on the second partition. A conical body with a narrow top and a wide bottom is connected inside the lower material barrel for easy discharge of materials.

[0008] The desulfurization mechanism includes a connecting pipe, an air pump, a feed pipe, an absorption tower, a second one-way air valve and a sprinkler. The absorption tower is installed on the side of the base. The top of the absorption tower is connected with a feed pipe. The other end of the feed pipe is connected to the air outlet of the air pump. A connecting pipe is connected between the air inlet of the air pump and the cylinder. The second one-way air valve is penetrated through the upper part of the absorption tower, and a sprinkler is installed on the inner upper part of the absorption tower.

[0009] Preferably, the desulfurization mechanism also includes a second motor, a stirring assembly and a third partition. The third partition is connected to the absorption tower above the second motor, and a water leakage hole is opened on the third partition. The water leakage hole does not overlap with the second motor in the vertical direction. The third partition is rotatably connected to the stirring assembly, and the stirring assembly is connected to the output shaft of the second motor.

[0010] Preferably, a filter screen for filtering lime powder is also installed in the water leakage hole.

[0011] Preferably, a baffle is also included, and the baffle is slidably provided on the connecting pipe.

[0012] Preferably, a water storage mechanism is also included. The absorption tower is provided with a water storage mechanism, and the water storage mechanism includes a water outlet pipe and a wastewater tower. The absorption tower is provided with a water outlet pipe, and the water inlet of the water outlet pipe is connected to the third partition plate. The water outlet pipe is located below the leakage hole. The absorption tower is connected to a wastewater tower, and the water outlet pipe passes through the absorption tower and is connected to the wastewater tower.

[0013] Preferably, there are at least four sprinklers, which are located at the same height as a group and are symmetrically arranged on the upper wall of the absorption tower.

[0014] Preferably, a groove for drainage is obliquely provided on the third partition, and the water leakage hole is located at the lowest point of the groove.

[0015] A desulfurized lime powder processing method, the specific steps of the method are as follows: S1. First, add a certain amount of limestone into the lower barrel, rotate the lower barrel to allow the limestone to enter the grinding barrel, and drive the grinding mechanism to grind it. The ground limestone powder particles will fall onto the first partition plate; S2, the limestone powder particles are blown up by the blowing mechanism, so that they are in contact with the grinding wheel set again and ground again, and the scraper can throw the limestone powder particles in the middle of the first partition to the outer edge and cooperate with the blowing mechanism to blow them up and grind them again; S3, after the limestone powder is thoroughly ground, the baffle is slid upward and the air pump is driven. The air pump cooperates with the blowing mechanism to suck the blown limestone powder into the absorption tower. The sprinkler is turned on, and the limestone powder entering the absorption tower will absorb water and fall down and accumulate on the third partition. Then the stirring component is driven to stir and mix the absorbed limestone powder. S4, after the limestone powder is fully mixed by the stirring component, an absorption slurry is obtained. At this time, the vent of the absorption tower is opened, and the booster fan is connected and driven. The booster fan conveys sulfur dioxide flue gas into the absorption tower. Then the second one-way air valve is opened to allow air to enter the absorption tower. The oxygen in the air is a reaction catalyst. The absorption slurry and the sulfur dioxide flue gas undergo a reverse contact reaction in the absorption tower. The reaction products are hydrated calcium sulfate and carbon dioxide, thereby completing the desulfurization step of the lime powder; S5. Finally, open another vent on the absorption tower and connect it to the collection device to collect the carbon dioxide in the absorption tower. Then open the water leakage hole and the excess water will flow into the wastewater tower through the outlet pipe.

[0016] 1. The present invention installs a blowing mechanism, and the wind energy generated by the turbofan will enter the grinding cylinder through the first one-way air valve. At this time, the wind will blow up the accumulated limestone powder particles, and the limestone particles that are not ground thoroughly enough will be blown up and contact the grinding wheel group, and will be ground again when in contact, so that the present invention can achieve the recycling of limestone particles.

[0017] 2. The present invention installs a scraper, which will throw the limestone powder particles to the outer edge, so that the limestone powder particles falling in the middle of the first partition can also be blown up, and there will not be a large amount of lime powder remaining and wasted inside the device, so that the present invention achieves the effect of not having a large amount of lime powder remaining and wasted inside the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the grinding mechanism of the present invention.

[0021] Figure 4 It is an enlarged three-dimensional structural schematic diagram of the scraper of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the blowing mechanism of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the material unloading mechanism and the desulfurization mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the desulfurization mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting pipe, baffle, air pump and feed pipe of the present invention.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second motor, the stirring mechanism and the third partition of the present invention.

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the water storage mechanism of the present invention.

[0028] The marks in the accompanying drawings are: 1-base, 101-first motor, 102-bevel gear, 2-unloading mechanism, 21-cylinder, 22-first partition, 23-grinding cylinder, 24-air outlet pipe, 25-second partition, 26-unloading cylinder, 3-grinding mechanism, 31-rotating shaft, 32-grinding wheel group, 321-scraper, 4-blowing mechanism, 41-turbofan, 42-first one-way air valve, 5-desulfurization mechanism, 51-connecting pipe, 511-baffle, 52-air pump, 53-feeding pipe, 54-absorption tower, 55-second one-way air valve, 56-sprinkler, 57-second motor, 58-stirring assembly, 59-third partition, 6-water storage mechanism, 61-water outlet pipe, 62-wastewater tower. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment 1: A desulfurized lime powder processing equipment, such as Figure 1-Figure 7 As shown, it includes a base 1, a first motor 101, a bevel gear 102, a feeding mechanism 2, a grinding mechanism 3, a blowing mechanism 4 and a desulfurization mechanism 5. The first motor 101 is installed at the lower part of the base 1 by bolts. The base 1 is provided with a feeding mechanism 2, and the feeding mechanism 2 includes a cylinder 21, a first baffle 22, a grinding cylinder 23, an air outlet pipe 24, a second baffle 25 and a feeding cylinder 26. The cylinder 21 is installed at the center of the base 1 by bolts, and the first baffle 22 is welded in the cylinder 21, and the diameter of the first baffle 22 is the same as the diameter of the cylinder 21, and the first baffle 22 is Through holes are evenly opened on the outer edge, a grinding cylinder 23 is welded inside the cylinder 21, the grinding cylinder 23 is located above the first partition plate 22 and fits with it, an air outlet pipe 24 is penetrated through the grinding cylinder 23 and the cylinder 21, a one-way valve is installed in the air outlet pipe 24, a second partition plate 25 is connected to the cylinder 21, a feed port is arranged on the second partition plate 25, the second partition plate 25 is located above the grinding cylinder 23, a lower barrel 26 is rotatably connected to the second partition plate 25, and a discharge port is arranged at the bottom of the lower barrel 26, and the discharge port can overlap with the feed port on the second partition plate 25, and a useful The base 1 is provided with a grinding mechanism 3, which is rotatably matched with the unloading mechanism 2. The grinding mechanism 3 includes a rotating shaft 31, a grinding wheel set 32 ​​and a scraper 321. The base 1 is rotatably provided with the rotating shaft 31. The output shaft of the first motor 101 and the lower part of the rotating shaft 31 are both connected with bevel gears 102. The two bevel gears 102 are meshed with each other. The rotating shaft 31 is installed with a grinding wheel set 32. The grinding wheel set 32 ​​is rotatably connected with the grinding cylinder 23. Six scrapers 321 are connected to the bottom of the grinding wheel set 32. The base 1 is rotatably connected with the rotating shaft 31. 1. The output shaft of the first motor 101 and the lower part of the rotating shaft 31 are commonly connected with a bevel gear 102, and the scraper 321 is fitted with the first partition 22. The rotating shaft 31 and the grinding cylinder 23 are commonly provided with a blowing mechanism 4, and the blowing mechanism 4 includes a turbofan 41 and a first one-way air valve 42. The turbofan 41 is welded on the rotating shaft 31, and the turbofan 41 is located between the cylinder 21 and the first partition 22. The lower part of the grinding cylinder 23 is symmetrically connected with the first one-way air valve 42, and the air outlet of the first one-way air valve 42 is close to the first partition 22. The second partition 25 is provided with a desulfurization mechanism 5.

[0031] When the device is to be used, a certain amount of limestone is first added into the lower barrel 26, and the lower barrel 26 is rotated so that the discharge port at the bottom of the lower barrel 26 coincides with the feed port on the second partition 25. At this time, the limestone in the lower barrel 26 will fall into the grinding barrel 23, driving the first motor 101. The output shaft of the first motor 101 will drive the rotating shaft 31 to rotate. The rotation of the rotating shaft 31 will drive the grinding wheel set 32 ​​and the turbofan 41 to rotate together. When the limestone contacts the grinding wheel set 32, it will be crushed by the grinding wheel set 32, and the crushed limestone powder particles will fall and accumulate on the first partition 22; the wind energy generated by the rotation of the turbofan 41 will enter the cavity between the cylinder body 21 and the grinding barrel 23 through the through hole on the outer edge of the first partition 22, and the wind will then enter the grinding barrel 23 through the first one-way air valve 42. At this time, the wind will blow up the accumulated limestone powder particles. The limestone powder is relatively light and is blown up to a higher height. The limestone particles that are not ground thoroughly are heavier and are blown up to a lower height. The blown limestone particles come into contact with the grinding wheel group 32 and will be ground again when in contact. The gas generated in the grinding cylinder 23 will be discharged outward from the outlet pipe 24; when the grinding wheel group 32 rotates, the scraper 321 at the bottom will also rotate, and the scraper 321 will shovel the limestone powder particles and rotate together, and throw them out to the outer edge, so that the limestone powder particles that fall in the middle of the first partition 22 can also be blown up, and there will not be a large amount of limestone powder remaining and wasted inside the device. In this way, the device can circulate and grind the limestone so that it can be ground thoroughly without a large amount of limestone powder remaining and wasted.

[0032] Embodiment 2: Based on embodiment 1, Figure 1 and Figure 6-Figure 10 As shown, the desulfurization mechanism 5 includes a connecting pipe 51, an air pump 52, a feed pipe 53, an absorption tower 54, a second one-way air valve 55 and a sprinkler 56. The absorption tower 54 is installed on the side of the base 1. The top of the absorption tower 54 is connected with the feed pipe 53 in a through-type manner. The other end of the feed pipe 53 is connected to the air outlet of the air pump 52. A connecting pipe is connected between the air inlet of the air pump 52 and the cylinder 23. The upper part of the absorption tower 54 is penetrated by a second one-way air valve 55. The inner upper part of the absorption tower 54 is installed with a sprinkler 56. The inner upper wall of the absorption tower 54 is symmetrically connected with three sprinklers 56.

[0033] like Fig. 9As shown, the desulfurization mechanism 5 also includes a second motor 57, a stirring assembly 58 and a third partition 59. The second motor 57 is installed at the lower part of the absorption tower 54 by bolts. The third partition 59 is welded in the absorption tower 54, and the diameter of the third partition 59 is the same as the diameter of the absorption tower 54. The absorption tower 54 above the second motor 57 is connected to the third partition 59, and a leakage hole is opened on the third partition 59. The leakage hole and the second motor 57 do not overlap in the vertical direction. A filter screen for filtering lime powder is also installed in the leakage hole. A groove for drainage is obliquely opened on the third partition 59, and the leakage hole is located at the lowest point of the groove. The third partition 59 is rotatably connected with a stirring assembly 58, and the stirring assembly 58 is connected to the output shaft of the second motor 57 through a coupling.

[0034] like Figure 8-Figure 10 As shown, it also includes a baffle 511 and a water storage mechanism 6. The baffle 511 is slidably provided on the connecting pipe 51; the absorption tower 54 is provided with a water storage mechanism 6, and the water storage mechanism 6 includes a water outlet pipe 61 and a wastewater tower 62. The absorption tower 54 is penetrated with a water outlet pipe 61, and the water inlet of the water outlet pipe 61 is connected to the third partition plate 59, and the water outlet pipe 61 is located below the leakage hole. The wastewater tower 62 is welded on the absorption tower 54, and the water outlet pipe 61 passes through the absorption tower 54 and is connected to the wastewater tower 62.

[0035] When the limestone in the grinding cylinder 23 is completely ground, the air pump 52 is driven, and the air pump 52 will suck the blown limestone powder into the feed pipe 53 through the connecting pipe 51, and the limestone powder will then enter the absorption tower 54 along the feed pipe 53. The sprinkler 56 in the absorption tower 54 sprinkles water on the limestone powder entering, so that it absorbs water and increases weight, falls and accumulates on the third partition plate 59; the second motor 57 is driven, and the output shaft of the second motor 57 drives the stirring component 58 to rotate, and the stirring component 58 drives the limestone powder that absorbs water to rotate and mix. After being completely mixed, the limestone powder becomes an absorption slurry. At this time, the air vent of the absorption tower 54 is opened, and the booster fan is connected and driven, and the booster fan transports the limestone powder into the absorption tower 54. For sulfur dioxide flue gas, open the second one-way air valve 55 to allow air to enter the absorption tower 54. The oxygen in the air is a reaction catalyst. The absorption slurry and the sulfur dioxide flue gas undergo reverse contact reactions in the gas phase and liquid phase in the absorption tower 54. The reaction products are hydrated calcium sulfate and carbon dioxide, thereby completing the desulfurization step of the lime powder; open another vent on the absorption tower 54 and connect it to a collection device, so that carbon dioxide can be discharged from the absorption tower 54 and collected, and will not be directly discharged into the air to pollute the atmospheric environment; open the water leakage hole, and the excess water will flow into the wastewater tower 62 along the outlet pipe 61; when processing the next batch of limestone, repeat the above steps, and close and clean the device after completing the work.

[0036] A desulfurized lime powder processing method, the specific steps of the method are as follows: S1, first add a certain amount of limestone into the lower barrel 26, rotate the lower barrel 26 to allow the limestone to enter the grinding barrel 23, and drive the grinding mechanism 3 to grind it, and the ground limestone powder particles will fall onto the first partition plate 22; S2, the limestone powder particles are blown up by the blowing mechanism 4, so that they are in contact with the grinding wheel set 32 ​​again and ground again, and the scraper 321 can throw the limestone powder particles in the middle of the first partition 22 outward and cooperate with the blowing mechanism 4 to blow them up and grind them again; S3, after the limestone powder is completely ground, the baffle plate 511 is slid upward and the air pump 52 is driven. The air pump 52 cooperates with the blowing mechanism 4 to suck the blown limestone powder into the absorption tower 54. The sprinkler 56 is turned on, and the limestone powder entering the absorption tower will absorb water and fall down and accumulate on the third partition plate 59. Then the stirring assembly 58 is driven to stir and mix the absorbed limestone powder. S4, after the stirring component 58 fully mixes the limestone powder, an absorption slurry is obtained. At this time, the vent of the absorption tower 54 is opened, and the booster fan is connected and driven. The booster fan conveys sulfur dioxide flue gas into the absorption tower 54, and then the second one-way air valve 55 is opened to allow air to enter the absorption tower 54. The oxygen in the air is a reaction catalyst. The absorption slurry and the sulfur dioxide flue gas undergo a reverse contact reaction in the absorption tower 54, and the reaction products are hydrated calcium sulfate and carbon dioxide, thereby completing the desulfurization step of the lime powder; S5. Finally, open another vent on the absorption tower 54 and connect it to a collection device to collect the carbon dioxide in the absorption tower 54. Then open the water leakage hole, and the excess water will flow into the wastewater tower 62 along the outlet pipe 61.

[0037] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A desulfurized lime powder processing equipment, comprising: Base (1); A first motor (101) is mounted on the lower part of the base (1); A material discharge mechanism (2) is arranged on the base (1), and the material discharge mechanism (2) comprises: A cylinder (21) mounted in the middle of the base (1); A first partition plate (22) is connected to the cylinder (21), and through holes are evenly formed on the outer edge of the first partition plate (22); A grinding cylinder (23) connected to the cylinder body (21), wherein the grinding cylinder (23) is located above the first partition plate (22) and is in close contact with the first partition plate (22); An air outlet pipe (24) is provided on the grinding cylinder (23) and the cylinder body (21) together, and a one-way valve is installed in the air outlet pipe (24); A second partition (25) is connected to the cylinder (21), and a feed port is provided on the second partition (25), and the feed port is located above the grinding cylinder (23); A lower barrel (26) disposed on the second partition plate (25); The grinding mechanism (3) is arranged on the base (1), and the grinding mechanism (3) is rotatably matched with the feeding mechanism (2), and the grinding mechanism (3) comprises: A rotating shaft (31) is rotatably connected to the base (1), and a bevel gear (102) is connected to the lower part of the rotating shaft (31) and the output shaft of the first motor (101), and the bevel gears (102) are meshed with each other; A grinding wheel assembly (32) is mounted on the rotating shaft (31), and the grinding wheel assembly (32) is rotatably connected to and tightly fitted with the grinding cylinder (23); It is characterized in that Also included are: Scrapers (321), at least four of the scrapers (321), all connected to the bottom of the grinding wheel assembly (32), and the bottom of the scrapers (321) is tightly fitted to the first partition (22); The blowing mechanism (4) is disposed on the rotating shaft (31) and the grinding cylinder (23), and the blowing mechanism (4) comprises: a turbofan (41) connected to the rotating shaft (31) and located between the cylinder (21) and the first partition (22); a first one-way air valve (42), at least two of which are symmetrically and obliquely connected to the lower part of the grinding cylinder (23); The desulfurization mechanism (5) is arranged on the second separator (25).

2. A desulfurized lime powder processing equipment according to claim 1, characterized in that: The lower material barrel (26) is rotatably connected to the second partition (25), and a discharge port is provided at the bottom of the lower material barrel (26), and the discharge port can overlap with the feed port on the second partition (25). A conical body with a narrow top and a wide bottom is connected inside the lower material barrel (26) to facilitate material discharge.

3. A desulfurized lime powder processing equipment according to claim 2, characterized in that: The desulfurization mechanism (5) comprises: An absorption tower (54) installed on the side of the base (1); A feed pipe (53) connected in a through-type manner to the top of the absorption tower (54); An air pump (52), wherein an air outlet of the air pump (52) is connected to the other end of the feed pipe (53); A connecting pipe (51) connected between the air inlet of the air pump (52) and the cylinder (21); A second one-way gas valve (55) is disposed on the upper portion of the absorption tower (54); A sprinkler (56) is installed at the inner upper part of the absorption tower (54).

4. A desulfurized lime powder processing equipment according to claim 3, characterized in that: The desulfurization mechanism (5) further comprises: a second motor (57) installed in the lower inner part of the absorption tower (54); A third partition plate (59) is connected to the absorption tower (54) above the second motor (57), and a water leakage hole is provided on the third partition plate (59), wherein the water leakage hole and the second motor (57) do not overlap in the vertical direction; A stirring assembly (58) is rotatably connected to the third partition plate (59), and a lower portion of the stirring assembly (58) is connected to an output shaft of the second motor (57).

5. A desulfurized lime powder processing equipment according to claim 4, characterized in that: A filter screen for filtering lime powder is also installed in the water leakage hole.

6. A desulfurized lime powder processing equipment according to claim 5, characterized in that: It also includes a baffle (511) slidably arranged on the connecting pipe (51).

7. A desulfurized lime powder processing equipment according to claim 6, characterized in that: It also includes a water storage mechanism (6) disposed on the absorption tower (54), wherein the water storage mechanism (6) includes: A water outlet pipe (61) is installed on the absorption tower (54), and a water inlet of the water outlet pipe (61) is connected to the third partition plate (59), and the water outlet pipe (61) is located below the water leakage hole; The wastewater tower (62) is connected to the absorption tower (54), and the water outlet pipe (61) passes through the absorption tower (54) and is connected to the wastewater tower (62).

8. A desulfurized lime powder processing equipment according to claim 7, characterized in that: There are at least four sprinklers (56), which are located at the same height as a group and are symmetrically arranged on the inner wall of the absorption tower (54) in an upper and lower manner.

9. A desulfurized lime powder processing equipment according to claim 8, characterized in that: The third partition plate (59) is provided with an inclined groove for drainage, and the water leakage hole is located at the lowest point of the groove.

10. A desulfurized lime powder processing equipment and a processing method, using the desulfurized lime powder processing equipment according to claims 1-9, characterized in that: The specific steps of the method are as follows: S1, first add a certain amount of limestone into the lower barrel (26), rotate the lower barrel (26) to allow the limestone to enter the grinding barrel (23), and drive the grinding mechanism (3) to grind it, and the ground limestone powder particles will fall onto the first partition (22); S2, the limestone powder particles are blown up by the blowing mechanism (4) so ​​that they come into contact with the grinding wheel assembly (32) again and are ground again, and the scraper (321) can throw the limestone powder particles in the middle of the first partition (22) outward and cooperate with the blowing mechanism (4) to blow them up and grind them again; S3, after the limestone powder is completely ground, the baffle plate (511) is slid upward and the air pump (52) is driven. The air pump (52) cooperates with the blowing mechanism (4) to suck the blown limestone powder into the absorption tower (54). The sprinkler (56) is turned on, and the limestone powder that has entered absorbs water and falls down and accumulates on the third partition plate (59). Then, the stirring assembly (58) is driven to stir and mix the absorbed limestone powder. S4, after the limestone powder is fully mixed by the stirring assembly (58), an absorption slurry is obtained. At this time, the air vent of the absorption tower (54) is opened, and the booster fan is connected and driven. The booster fan conveys sulfur dioxide flue gas into the absorption tower (54). Then, the second one-way air valve (55) is opened to allow air to enter the absorption tower (54). Oxygen in the air serves as a reaction catalyst. The absorption slurry and the sulfur dioxide flue gas undergo a reverse contact reaction in the absorption tower (54). The reaction products are hydrated calcium sulfate and carbon dioxide, thereby completing the desulfurization step of the lime powder. S5. Finally, another vent on the absorption tower (54) is opened and connected to a collection device to collect the carbon dioxide in the absorption tower (54). The water leakage hole is then opened, and excess water flows through the outlet pipe (61) into the wastewater tower (62).

Citation Information

Patent Citations

  • A fine grinding and refining process for desulfurized quicklime powder

    CN111420739B