System for processing gypsum powder by utilizing desulfurized gypsum and heat energy

Abstract

The invention relates to the field of gypsum powder preparation, and discloses a system for processing gypsum powder by using desulfurized gypsum and heat energy, which is used for communicating a flue gas discharge port of a fluidized bed furnace body and a cyclone dust removal system, and comprises an outer pipe body, a flue gas channel is formed on the inner side of the outer pipe body, and a plurality of loading frames are sequentially arranged on the flue gas channel in the flue gas circulation direction; a water absorption medium is loaded in each loading frame for flue gas to pass through, one end of the flue gas channel is communicated with the flue gas discharge port, the other end of the flue gas channel is communicated with the cyclone dust removal system, and when flue gas passes through the loading frames, the water absorption medium in the loading frames absorbs moisture in the flue gas, so that the phenomenon that the flue gas with excessive moisture enters the cyclone dust removal system is avoided; and the temperature of the inner wall of the cyclone dust collector is lower than that of the fluidized bed furnace, so that gaseous water vapor in the flue gas is liquefied into water drops on the inner wall of the cyclone dust collector and is in contact with gypsum powder in the flue gas, the dried gypsum powder absorbs water again and is condensed and hardened into dihydrate gypsum, and the product quality is influenced.

Description

Technical Field

[0001] The invention relates to the field of gypsum powder preparation, and in particular to a system for processing gypsum powder by utilizing desulfurized gypsum and thermal energy. Background Art

[0002] Desulfurized gypsum is a byproduct of wet desulfurization of industrial flue gas. my country is a major coal-fired power country, and the emission of desulfurized gypsum is huge. It has piled up in thermal power plants, which has a potential serious impact on the environment. The main way to recycle desulfurized gypsum is to convert it into semi-hydrated gypsum and use it as a cementing material as a building material; calcination is the most commonly used industrial method for preparing semi-hydrated gypsum, especially the method of using a boiling furnace to calcine to prepare gypsum powder, which is widely used in industrial production.

[0003] For example, a patent with publication number CN220520392U and publication date of February 23, 2024 discloses a gypsum powder calcining boiling furnace, including a furnace body, a feed valve arranged at the upper part of the furnace body and connected to the furnace body; a boiling device is arranged at the bottom of the furnace body to blow air evenly into the furnace body; the boiling device includes an air distribution plate, a slideway is evenly distributed on the air distribution plate, a tube body is inserted into the slideway, the tube body is in a stepped column shape, and the diameter of the lower end of the tube body is larger than the slideway, and a straight tube body is arranged at the upper end of the tube body. A cap has a diameter larger than that of the slide, and an air outlet channel is arranged on the side wall of the tube body. When the tube body is not lifted up by air pressure, the air outlet channel is located in the slide. In the above structure, the boiling device has a tube body that can be raised and lowered. When air is blown, the tube body rises, and air flow is blown out from the tube body to boil the material. When air is not blown, the tube body falls back into the slide without the support of the air flow, and the air outlet channel on the tube body is blocked by the slide wall. The material will not enter the pipeline through the tube body, thereby eliminating the situation of material accumulation and pipeline blockage.

[0004] The existing fluidized bed furnace is usually connected to a cyclone dust collector. The cyclone dust collector is mainly used to reduce dust and flue gas in the fluidized bed furnace. However, due to the high water content of desulfurized gypsum, when the fluidized bed furnace calcines the desulfurized gypsum, the moisture in the desulfurized gypsum evaporates into water vapor. When the cyclone dust collector extracts the flue gas in the fluidized bed furnace, the inner wall temperature of the cyclone dust collector is lower than the temperature of the fluidized bed furnace, so the gaseous water vapor in the flue gas is easily liquefied into water droplets on the inner wall of the cyclone dust collector. When the gypsum powder in the flue gas contacts the water droplets, the product of the calcined desulfurized gypsum has hydration activity, and the gypsum powder is easily condensed and hardened into dihydrate gypsum after meeting water, resulting in a small amount of dihydrate gypsum in the finished product, affecting the quality of the product. Summary of the invention

[0005] The object of the present invention is to provide a system for processing gypsum powder by utilizing desulfurized gypsum and thermal energy, so as to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A system for processing gypsum powder using desulfurized gypsum and thermal energy, which is used to connect the flue gas outlet of a boiling furnace body and a cyclone dust removal system, and comprises an outer tube body, a flue gas channel is formed inside the outer tube body, a plurality of loading frames are sequentially arranged in the flue gas flow direction in the flue gas channel, each loading frame is loaded with a water absorbing medium for the flue gas to pass through, one end of the flue gas channel is connected to the flue gas outlet, and the other end of the flue gas channel is connected to the cyclone dust removal system.

[0008] As mentioned above, a smoke inlet is opened at the center of the bottom of the outer tube body, and the smoke inlet is connected to the smoke exhaust port. A plurality of smoke exhaust ports are opened at the edge of the top of the outer tube body. The plurality of smoke exhaust ports are arranged at intervals along the circumference of the outer tube body. The smoke in the boiling furnace body enters into the smoke channel through the smoke inlet, and the smoke passes through the loading frame in the smoke channel and enters into the cyclone dust removal system from the smoke exhaust port.

[0009] As mentioned above, the surface of the loading frame is hollowed out.

[0010] The outer tube body is divided into a loading part and a discharging part by the smoke channel. The loading part is hollow and filled with unused water-absorbing medium. The discharging part is provided with a discharging cavity for storing the used water-absorbing medium in the loading frame.

[0011] As mentioned above, the bottom surface of the discharge cavity is inclined downward, and an opening is provided at the bottom of the discharge cavity and is connected to the outside.

[0012] As mentioned above, a plurality of make way grooves are provided on the loading part and the discharging part of the flue gas duct, and the make way grooves on the loading part and the discharging part correspond one to one. The two corresponding make way grooves on the loading part and the discharging part correspond to a loading frame, and the two ends of the loading frame are respectively inserted into the make way grooves on the loading part and the discharging part.

[0013] As mentioned above, shielding plates are provided at both upper and lower ends of the loading frame, and the shielding plates are connected to the loading frame through traction springs. The shielding plates are used to shield the upper and lower ends of the loading frame to prevent the water-absorbing medium from leaking from the loading frame. A connecting opening is provided on the shielding plate. In the initial state, the connecting opening is staggered with the outer tube body.

[0014] As mentioned above, a driving assembly is also provided in the outer tube body, and the driving assembly is connected to multiple loading frames. The driving assembly is used to drive the multiple loading frames to reciprocate up and down in the discharge cavity. When the loading frames reciprocate up and down, the internal water absorbing medium is replaced.

[0015] As mentioned above, a trigger part is arranged in the give way groove of the smoke channel. When the loading frame moves up and down in the smoke channel, the shielding plate on the loading frame passes through the trigger part, and the shielding plate slides in a direction away from the center of the outer tube body under the action of the trigger part.

[0016] As mentioned above, the trigger part includes multiple trigger wedges, two trigger wedges are present in a give way slot, the two trigger wedges are disposed at both ends of the give way slot, the two trigger wedges correspond to a shielding plate, and two adjustment wedges are installed on the side of the shielding plate away from the loading frame, and the two adjustment wedges correspond one-to-one to the two trigger wedges in the corresponding give way slots.

[0017] The beneficial effect of the present invention is that in the above technical scheme, a system for processing gypsum powder using desulfurized gypsum and thermal energy is provided by the present invention. By setting a loading frame equipped with a water-absorbing medium, when the desulfurized gypsum is calcined in the boiling furnace body, the cyclone dust removal system works to extract the flue gas in the boiling furnace body, and the flue gas enters the outer tube body through the flue gas external exhaust port, and the flue gas passes through multiple loading frames and enters the cyclone dust removal system. When the flue gas passes through the loading frame, the water-absorbing medium in the loading frame absorbs moisture in the flue gas, reduces the water content in the flue gas, and avoids high-temperature and excessively water-containing flue gas from entering the cyclone dust collector. Because the inner wall temperature of the cyclone dust collector is lower than the temperature of the boiling furnace, the gaseous water vapor in the flue gas is liquefied into water droplets on the inner wall of the cyclone dust collector and contacts with the gypsum powder in the flue gas, so that the dried gypsum powder absorbs water again and condenses and hardens into dihydrate gypsum, affecting the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic structural diagram of a system for processing gypsum powder using desulfurized gypsum and thermal energy provided by an embodiment of the present invention;

[0020] Figure 2 A schematic front view of the structure of a system for processing gypsum powder using desulfurized gypsum and thermal energy provided by an embodiment of the present invention;

[0021] Figure 3 The embodiment of the present invention provides Figure 2 A schematic cross-sectional view of AA;

[0022] Figure 4 The embodiment of the present invention provides Figure 3 An enlarged schematic diagram of point B;

[0023] Figure 5 A schematic diagram of the internal structure of an outer tube body provided in an embodiment of the present invention;

[0024] Figure 6A schematic diagram of a preferred structure of a loading frame provided in an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of a state in which a shielding plate on a loading frame provided by an embodiment of the present invention is opened;

[0026] Figure 8 A schematic diagram of the connection between the loading frame and the outer tube body provided in an embodiment of the present invention;

[0027] Fig. 9 The embodiment of the present invention provides Figure 8 An enlarged schematic diagram of point C;

[0028] Fig.10 A schematic top view of a push-flattening mechanism in one side of a loading frame provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Boiling furnace body; 2. Smoke exhaust port; 3. Cyclone dust removal system; 4. Outer tube body; 41. Smoke channel; 411. Smoke inlet; 412. Smoke exhaust port; 413. Loading part; 414. Discharging part; 415. Discharging cavity; 416. Make way groove; 417. Guide block; 42. Loading frame; 43. Water-absorbing medium; 44. Shielding plate; 45. Connecting opening; 46. Adjusting wedge block; 47. Guide slide groove; 5. Driving assembly; 6. Triggering wedge block; 7. Pushing mechanism; 71. Driving shaft; 72. Driving gear; 73. Matching rack; 74. Rectangular spiral groove; 75. Pushing plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1-10 , the present invention is further introduced in detail.

[0032] An embodiment of the present invention provides a system for processing gypsum powder using desulfurized gypsum and thermal energy, which is used to connect the flue gas outlet 2 of a boiling furnace body 1 and a cyclone dust removal system 3, and includes an outer tube body 4, a flue gas channel 41 is formed on the inner side of the outer tube body 4, and the flue gas channel 41 is sequentially arranged with a plurality of loading frames 42 along the flow direction of the flue gas, each loading frame 42 is loaded with a water absorbing medium 43 for the flue gas to pass through, one end of the flue gas channel 41 is connected to the flue gas outlet 2, and the other end of the flue gas channel 41 is connected to the cyclone dust removal system 3.

[0033] Specifically, the boiling furnace body 1 is vertically arranged, and the flue gas outlet 2 is usually opened at the top of the boiling furnace body 1. The boiling furnace body 1 is used to calcine the desulfurized gypsum and remove the moisture in the desulfurized gypsum so that the desulfurized gypsum forms semi-hydrated gypsum. The side wall of the boiling furnace body 1 is also connected with a feeding assembly, which is used to continuously feed the desulfurized gypsum into the boiling furnace body 1. The existing feeding assembly is usually composed of a feeder, a double-roll crusher and a bucket elevator. The feeder transports the desulfurized gypsum to the double-roll crusher, and the double-roll crusher crushes the desulfurized gypsum. The crushed material enters the boiling furnace body 1 through the bucket elevator for calcination. The cyclone dust removal system 3 is usually composed of a suction pipe, a cyclone dust collector and a spray drying tower. In the prior art, the cyclone dust collector is connected to the flue gas outlet 2 on the boiling furnace body 1 through a suction pipe. The existing boiling furnace body 1 is used for calcining the desulfurized gypsum. During burning, the staff pours the desulfurized gypsum into the feeder, and the feeder transports the desulfurized gypsum material to the double-roll crusher, which crushes the desulfurized gypsum material. The crushed desulfurized gypsum material enters the boiling furnace body 1 through a bucket elevator, and the boiling furnace body 1 calcines the desulfurized gypsum entering therein to remove moisture from the desulfurized gypsum to form semi-hydrated gypsum (also known as gypsum powder). When the boiling furnace body 1 calcines the desulfurized gypsum, flue gas will be generated, and the flue gas will contain gypsum powder. In order to avoid excessive flue gas in the boiling furnace body 1, which will increase the internal pressure and affect the normal use of the boiling furnace body 1, the cyclone dust collector in the cyclone dust removal system 3 starts to work, and the cyclone dust collector extracts the dust and flue gas in the boiling furnace body 1 through a suction pipe. The extracted flue gas enters the spray drying tower, and the spray drying tower dries the gypsum powder to complete the preparation of the gypsum powder.

[0034] Currently, due to the high water content of desulfurized gypsum, the water in the desulfurized gypsum is vaporized during calcination. When the cyclone dust collector extracts the flue gas and dust in the boiling furnace body 1, the vaporized water also enters the cyclone dust collector. Since there is no heating source in the cyclone dust collector, the temperature of the inner wall of the cyclone dust collector is lower than the temperature of the boiling furnace body 1. Therefore, when the gaseous water vapor in the flue gas enters the cyclone dust collector, it is easy to liquefy into water droplets on the inner wall of the cyclone dust collector. Since the product after calcination of desulfurized gypsum is water-activated, when the dehydrated gypsum powder in the flue gas contacts the water droplets again, the gypsum powder is easy to absorb water again and condense and harden into dihydrate gypsum, which affects the quality of the gypsum powder after calcination.

[0035] In order to solve the above problems, an outer tube body 4 is further arranged between the boiling furnace body 1 and the cyclone dust removal system 3, that is, the above-mentioned suction pipe is connected to the smoke exhaust port 2 on the boiling furnace body 1 through the outer tube body 4, and a smoke channel 41 is formed on the inner side of the outer tube body 4. The smoke channel 41 has multiple loading frames 42 arranged in sequence along the flow direction of the smoke, and each loading frame 42 is loaded with a water absorbing medium 43 for the smoke to pass through. One end of the smoke channel 41 is connected to the smoke exhaust port 2, and the other end of the smoke channel 41 is connected to the cyclone dust removal system 3.

[0036] Specifically, after the existing desulfurized gypsum is calcined, flue gas will be formed in the boiling furnace body 1. The gypsum powder in the flue gas usually exists in a micro-powder state. At this time, the particle size of the gypsum powder is small, and the water-absorbing medium 43 can be selected from modified activated carbon, polyacrylamide, silica gel, calcium chloride, molecular sieve, polymer desiccant and other materials that can absorb water vapor. In this embodiment, the water-absorbing medium 43 is selected as modified activated carbon with large pores to ensure that the pores of the modified activated carbon are larger than the particle size of the gypsum powder in the micro-powder state. When the flue gas containing gypsum powder runs at a high flow rate under the action of the cyclone dust removal system 3, the high-flow gypsum powder flue gas can pass through the large gaps between the accumulated modified activated carbon particles. This is a prior art and its principle will not be repeated here. When it is necessary to extract the flue gas generated in the boiling furnace body 1, the cyclone dust removal system 3 starts to work. Under the suction action of the cyclone dust removal system 3, the flue gas generated in the boiling furnace body 1 is sucked. The flue gas generated in the furnace body 1 enters the flue gas channel 41 of the outer tube body 4 through the flue gas external exhaust port 2, and as the cyclone dust removal system 3 continues to suck, the flue gas containing gypsum powder diffuses in the flue gas channel 41 of the outer tube body 4 toward the cyclone dust removal system 3, and the flue gas containing gypsum powder passes through the loading frame 42 during the diffusion process. When the flue gas passes through the loading frame 42, the flue gas comes into contact with the water absorbing medium 43 in the loading frame 42, and the water absorbing medium 43 absorbs moisture in the flue gas. As the flue gas diffuses toward the cyclone dust removal system 3, the flue gas passes through multiple loading frames 42, and the water absorbing medium 43 in each loading frame 42 absorbs water to the flue gas, thereby further reducing the moisture content in the flue gas, reducing the phenomenon of liquefaction of water vapor in the flue gas when the flue gas enters the cyclone dust removal system 3, and further reducing the occurrence of the gypsum powder in the flue gas absorbing moisture and hardening into dihydrate gypsum.

[0037] Preferably, Figure 5As shown, a smoke inlet 411 is opened at the center of the bottom of the outer tube body 4, and the smoke inlet 411 is connected to the smoke exhaust port 2. A plurality of smoke exhaust ports 412 are opened at the edge of the top of the outer tube body 4 (the edge of the top of the outer tube body 4 is also the area of ​​the top of the outer tube body 4 away from the center, wherein the plurality of loading frames 42 are all located in the area between the smoke inlet 411 and the smoke exhaust port 412), and the plurality of smoke exhaust ports 412 are arranged at intervals along the circumference of the outer tube body 4. The smoke in the boiling furnace body 1 enters into the smoke channel 41 through the smoke inlet 411, and the smoke passes through the loading frame 42 in the smoke channel 41 and enters into the cyclone dust removal system 3 from the smoke exhaust port 412; the surface of the loading frame 42 is hollow.

[0038] Specifically, in the present embodiment, the loading frame 42 is in the shape of a rectangular frame as a whole. When the smoke diffuses inside the smoke channel 41, no matter in which direction the smoke diffuses, it will contact the loading frame 42 for dehydration treatment, thereby improving the dehydration efficiency of the smoke. It should be noted that the loading frame 42 is not limited to a rectangular frame, but can also be a plate-shaped or circular frame-shaped shape. It is only necessary for the loading frame 42 to separate the smoke exhaust port 412 from the smoke inlet 411, and the surface of the loading frame 42 is hollow, which is convenient for the smoke to fully contact with the water absorbing medium 43 in the loading frame 42, thereby improving the absorption effect of the moisture in the smoke. When it is necessary to suck the smoke generated in the boiling furnace body 1, the cyclone dust removal system 3 starts to work. Under the suction action of the wind dust removal system 3, the flue gas generated in the boiling furnace body 1 enters the flue gas channel 41 of the outer tube body 4 through the flue gas external exhaust port 2, and as the cyclone dust removal system 3 continues to suck, the flue gas containing gypsum powder diffuses in all directions in the flue gas channel 41 of the outer tube body 4 (that is, diffuses from the direction of the smoke inlet 411 toward the direction of the smoke outlet 412). The flue gas containing gypsum powder will pass through the loading frame 42 during the diffusion process, and the water-absorbing medium 43 in the multiple loading frames 42 performs multiple water absorption treatments on the flue gas, thereby reducing the moisture content in the flue gas, and reducing the situation where the water vapor in the flue gas is liquefied when the flue gas enters the cyclone dust removal system 3, and the gypsum powder in the flue gas absorbs moisture and hardens into dihydrate gypsum.

[0039] Obviously, as the flue gas in the boiling furnace body 1 is continuously filtered, the water-absorbing medium 43 in the loading frame 42 will reach a saturated adsorption state. At this time, the water-absorbing medium 43 that has reached the saturated adsorption state cannot continue to absorb moisture in the flue gas, so that the moisture in the flue gas will enter the cyclone dust removal system 3 along with the flue gas. At this time, the flue gas containing moisture is prone to liquefaction in the cyclone dust removal system 3, causing the gypsum powder in the flue gas to absorb water again to form dihydrate gypsum, affecting the quality of the prepared gypsum powder.

[0040] In order to solve the above problems, the outer tube body 4 is divided into a feeding part 413 and a discharging part 414 by the smoke channel 41. The feeding part 413 is hollow inside to form a accommodating chamber. The accommodating chamber of the feeding part 413 is filled with unused water-absorbing medium 43. In order to facilitate the filling of unused water-absorbing medium 43 into the feeding part 413, in the present embodiment, an openable or closable feeding port is provided on the feeding part 413. The feeding port is connected to the outside of the outer tube body 4 through a pipeline. In this way, the water-absorbing medium 43 can be continuously replenished on the outside of the outer tube body 4. The unused water-absorbing medium 43 can be added to the inside of the feeding part 413 through the feeding port. In addition, the smoke exhaust port 412 is provided on the feeding part 413, wherein the discharging port 412 is provided on the feeding part 413. A discharge chamber 415 is provided in the portion 414, and the discharge chamber 415 is used to store the used water-absorbing medium 43 in the loading frame 42; the smoke inlet 411 is provided on the discharge portion 414, and the bottom surface of the discharge chamber 415 is preferably inclined downward, and the bottom end of the discharge chamber 415 is provided with an opening and is connected to the outside; wherein, shielding plates 44 are provided at both upper and lower ends of the loading frame 42, and the shielding plates 44 are connected to the loading frame 42 through a traction spring (the traction spring is not shown in the figure), and the shielding plates 44 are used to shield the openings at the upper and lower ends of the loading frame 42 to prevent the water-absorbing medium 43 from leaking from the loading frame 42, and a connecting opening 45 is provided on the shielding plate 44, and in the initial state, the connecting opening 45 is misaligned with the loading frame 42 The outer tube body 4 is also provided with a driving assembly 5, which is connected to the plurality of loading frames 42, and the driving assembly 5 is used to drive the plurality of loading frames 42 to reciprocate up and down. When the loading frames 42 reciprocate up and down, the water absorbing medium 43 inside is replaced. The driving assembly 5 can select a plurality of electrically controlled telescopic rods, which are all installed in the smoke channel 41 and located on the feeding part 413. A connecting rod is fixedly installed on the telescopic end of the electrically controlled telescopic rod, and the connecting rod connects the plurality of loading frames 42. The feeding part 413 and the discharge part 414 of the smoke channel 41 are connected to the outer tube body 4. A plurality of clearance grooves 416 are provided, and the clearance grooves 416 on the feeding part 413 and the discharging part 414 correspond one to one. The two corresponding clearance grooves 416 on the feeding part 413 and the discharging part 414 correspond to one loading frame 42. The two ends of the loading frame 42 are respectively inserted into the clearance grooves 416 of the feeding part 413 and the clearance grooves 416 on the discharging part 414 in a dynamic and sealed manner, so that it can be driven to reciprocate up and down; the clearance grooves 416 of the smoke channel 41 are all provided with trigger parts. When the loading frame 42 moves up and down in the smoke channel 41, the shielding plate 44 on the loading frame 42 passes the triggering part, and the shielding plate 44 slides in the direction away from the center of the outer tube body 4 under the action of the triggering part;The triggering part includes a plurality of triggering wedges 6, two triggering wedges 6 are arranged in one clearance groove 416, and the two triggering wedges 6 are arranged at both ends of the clearance groove 416. The two triggering wedges 6 correspond to a shielding plate 44. Two adjusting wedges 46 are installed on the side of the shielding plate 44 away from the loading frame 42. The two adjusting wedges 46 correspond to the two triggering wedges 6 in the corresponding clearance groove 416 one by one. In order to facilitate the filling of materials, the inner cavity of the feeding part 413 and the clearance groove 416 thereon are in a state of mutual communication. The area where the inner cavity of the material part 413 communicates with the clearance groove 416 thereon is located between the two trigger wedges 6 in the clearance groove 416, and a plurality of guide blocks 417 are also arranged in the inner cavity of the material loading part 413. The plurality of guide blocks 417 are all triangular in structure and are installed at the bottom of the inner cavity of the material loading part 413. The plurality of guide blocks 417 form a slope inclined toward the clearance groove 416, and the water-absorbing medium 43 in the inner cavity of the material loading part 413 easily enters the clearance groove 416 along the guide blocks 417. ;

[0041] Specifically, in the present embodiment, the discharge chamber 415 is tilted downward. When the used water-absorbing medium 43 in the loading frame 42 enters the discharge chamber 415, the water-absorbing medium 43 slides downward along the inclined surface of the discharge chamber 415. At this time, the water-absorbing medium 43 gathers at the bottom of the discharge chamber 415. Then the staff takes out the used water-absorbing medium 43 in the discharge chamber 415 through the opening at the bottom of the discharge chamber 415. Obviously, in order to increase the efficiency of taking out the water-absorbing medium 43 in the discharge chamber 415, a combination of a suction pump and a collection box can be added at the above-mentioned opening. The waste material in the discharge chamber 415 (that is, the water-absorbing medium 43 that has reached a saturated adsorption state) is sucked out by the suction of the suction pump, and the sucked out waste material enters the collection box to complete the discharge. The water-absorbing medium 43 in the cavity 415 is automatically collected and processed. In this embodiment, the loading frame 42 is in the shape of a plate as a whole. In the initial state, the upper and lower ends of the loading frame 42 are respectively inserted into the corresponding two giving way grooves 416. The shielding plate 44 on the loading frame 42 shields the upper and lower ends of the loading frame 42. When the cyclone dust removal system 3 is working, the flue gas in the boiling furnace body 1 enters the flue gas channel 41 through the smoke inlet 411. Subsequently, under the suction action of the cyclone dust removal system 3, the flue gas moves from the center to the edge inside the outer tube 4 (that is, the flue gas moves from the smoke inlet 411 toward the smoke outlet 412). The flue gas passes through the loading frame 42, and the water-absorbing medium 43 in the loading frame 42 absorbs the moisture in the flue gas to complete the flue gas dehydration process.

[0042] When the water-absorbing medium 43 in the loading frame 42 needs to be replaced after a long period of use, the electrically-controlled telescopic rod in the driving assembly 5 begins to extend, and under the action of the connecting rod, the multiple loading frames 42 begin to move downward toward the discharge portion 414. When the loading frame 42 enters the inside of the yielding groove 416 on the discharge portion 414, the adjusting wedge 46 on the shielding plate 44 at the bottom of the loading frame 42 abuts against the trigger wedge 6. The adjusting wedge 46 moves in the horizontal direction under the squeezing action of the trigger wedge 6. At this time, the traction spring connected to the shielding plate 44 is stretched, and the connecting rod on the shielding plate 44 is pulled. The through opening 45 is aligned with the loading frame 42, and the used water-absorbing medium 43 in the loading frame 42 enters the discharge cavity 415 of the discharge portion 414 through the through opening 45. At this time, the water-absorbing medium 43 slides downward along the inclined surface of the discharge cavity 415. At this time, the water-absorbing medium 43 gathers at the bottom of the discharge cavity 415. Then, the staff takes out the used water-absorbing medium 43 in the discharge cavity 415 through the opening at the bottom of the discharge cavity 415, and completes the emptying process of the water-absorbing medium 43 in the loading frame 42. Then, the electric control telescopic rod in the driving assembly 5 begins to shrink, and under the action of the connecting rod Under the action of the trigger wedge 6, the adjusting wedge 46 on the shielding plate 44 on the top surface of the loading frame 42 abuts against the trigger wedge 6. At this time, the traction spring connected to the shielding plate 44 is stretched, and the connecting opening 45 on the shielding plate 44 is aligned with the loading frame 42. The unused water-absorbing medium 43 in the loading portion 413 enters into the loading frame 42 through the connecting opening 45, completing the operation of the loading frame 42. The water-absorbing medium 43 is filled inside the loading frame 42. Finally, the electrically-controlled telescopic rod is extended, carrying the loading frame 42 away from the trigger wedge 6 at the feeding portion 413. The baffle 44 on the top surface of the loading frame 42 is closed. At this time, the unused water-absorbing medium 43 is filled inside the loading frame 42 and intercepted inside the smoke channel 41. When the smoke moves from the center to the edge in the outer tube body 4 (that is, the smoke moves from the smoke inlet 411 toward the smoke exhaust port 412), the smoke passes through the loading frame 42, and the water-absorbing medium 43 in the loading frame 42 absorbs the moisture in the smoke, thereby completing the smoke dehydration process.

[0043] Among them, in this embodiment, because the area where the accommodating cavity of the feeding part 413 is connected to the give way groove 416 thereon is located between the two trigger wedges 6 in the give way groove 416, the connected area cannot include the entire side of the loading frame 42. Therefore, when the water-absorbing medium 43 enters the interior of the loading frame 42 through the connected area, the water-absorbing medium 43 in the loading frame 42 is likely to form a shape that is high in the middle and low on both sides. Therefore, when entering the smoke channel 41, a vacant area of ​​the water-absorbing medium 43 is likely to appear on the loading frame 42, affecting the absorption effect of moisture in the smoke.

[0044] In order to solve this problem, in this embodiment, a flattening mechanism 7 is further installed on the loading frame 42. The flattening mechanism 7 flattens the arched water-absorbing medium 43 in the loading frame 42 based on the downward movement of the loading frame 42, thereby eliminating the vacant area on the loading frame 42. The flattening mechanism 7 includes a driving shaft 71, which rotates on the loading frame 42. A driving gear 72 is fixedly installed at the center of the driving shaft 71. A matching rack 73 meshing with the driving gear 72 is fixedly installed in the clearance groove 416 on the feeding part 413. Two rectangular spiral grooves 74 are provided on the moving shaft 71 from the center toward both ends, and the spiral directions of the two rectangular spiral grooves 74 are opposite. A horizontal guide groove 47 is provided on the loading frame 42 (the guide groove 47 is parallel to the driving shaft 71), and two push plates 75 are sleeved on the driving shaft 71. The two push plates 75 correspond to the two rectangular spiral grooves 74 one by one. The two push plates 75 are slidably installed in the guide grooves 47 with their ends, and sliders are provided on the push plates 75. The sliders on the push plates 75 are inserted into the corresponding rectangular spiral grooves 74.

[0045] Specifically, in the initial state, the two push plates 75 are located at both ends of the driving shaft 71. When the loading frame 42 moves upward to fill the water-absorbing medium 43, as the loading frame 42 moves upward, the driving gear 72 on the loading frame 42 meshes with the matching rack 73 in the clearance groove 416, and the driving gear 72 rotates. At this time, the push plates 75 located at both ends of the driving shaft 71 move along the guide groove 47 toward the center of the driving shaft 71. When the loading frame 42 moves upward to the highest position, the two push plates 75 are located on both sides of the driving gear 72. After the filling process of the water-absorbing medium 43 is completed, as the loading frame 42 moves upward, the two push plates 75 are located on both sides of the driving gear 72. 2 moves downward, the driving gear 72 on the loading frame 42 meshes with the matching rack 73 in the giving way groove 416 again, and the matching rack 73 drives the driving gear 72 to rotate in the opposite direction. At this time, the two pushing plates 75 located on both sides of the driving gear 72 move toward the two ends of the driving shaft 71 respectively. With the movement of the two pushing plates 75, the two pushing plates 75 push the water absorbing medium 43 arched in the middle to the two ends, driving the water absorbing medium 43 in the loading frame 42 to remain flat, avoiding the situation where there is a vacant area of ​​the water absorbing medium 43, thereby improving the absorption effect of moisture in the smoke and indirectly improving the quality of the produced semi-hydrated gypsum.

[0046] Obviously, if the height of the water-absorbing medium 43 in the loading frame 42 is much greater than the height of the pushing plate 75, when the loading frame 42 moves downward, the driving gear 72 is meshed with the mating rack 73, and the water-absorbing medium 43 in the loading frame 42 cannot be pushed flat by only one push of the pushing plate 75. The water-absorbing medium 43 in the subsequent loading frame 42 still maintains the state of arching in the middle area, which affects the absorption effect of moisture in the smoke. Therefore, in order to ensure that the water-absorbing medium 43 in the loading frame 42 can be flat, when the loading frame 42 is filled with the water-absorbing medium 43, the driving component 5 can drive the loading frame 42 to move upward multiple times. The loading frame 42 reciprocates downward, so that the driving gear 72 on the loading frame 42 can repeatedly mesh with the matching rack 73. When the loading frame 42 moves upward, the loading frame 42 is filled with the water-absorbing medium 43. When the loading frame 42 moves downward, the pushing plate 75 pushes the water-absorbing medium 43 in the loading frame 42 flat. The loading frame 42 repeats the above steps many times. By adding a small amount of water-absorbing medium 43 to the loading frame 42 many times and cooperating with the multiple leveling treatments of the pushing plate 75, it is possible to ensure that the water-absorbing medium 43 in the loading frame 42 is in a flat state, thereby avoiding the occurrence of vacant areas of the water-absorbing medium 43 in the loading frame 42.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A system for processing gypsum powder using desulfurized gypsum and heat energy, which is used to connect the flue gas outlet (2) of a boiling furnace body (1) and a cyclone dust removal system (3), characterized in that: It comprises an outer tube body (4), a smoke channel (41) is formed inside the outer tube body (4), a plurality of loading frames (42) are arranged in sequence along the flow direction of the smoke, each loading frame (42) is loaded with a water absorbing medium (43) for the smoke to pass through, one end of the smoke channel (41) is connected to a smoke outlet (2), and the other end of the smoke channel (41) is connected to a cyclone dust removal system (3).

2. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 1, characterized in that: A smoke inlet (411) is provided at the center of the bottom of the outer tube body (4), the smoke inlet (411) being connected to the smoke exhaust port (2), a plurality of smoke exhaust ports (412) are provided at the edge of the top of the outer tube body (4), the plurality of smoke exhaust ports (412) being arranged at intervals along the circumference of the outer tube body (4), the smoke in the boiling furnace body (1) enters the smoke channel (41) through the smoke inlet (411), the smoke passes through the loading frame (42) in the smoke channel (41), and enters the cyclone dust removal system (3) from the smoke exhaust port (412).

3. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 2, characterized in that: The surface of the loading frame (42) is hollow.

4. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 2, characterized in that: The outer tube body (4) is divided into a loading portion (413) and a discharging portion (414) by a smoke passage (41); the loading portion (413) is hollow inside and filled with unused water-absorbing medium (43); a discharging cavity (415) is provided in the discharging portion (414); the discharging cavity (415) is used to store the used water-absorbing medium (43) in the loading frame (42).

5. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 4, characterized in that: The bottom surface of the discharge cavity (415) is inclined downward, and an opening is provided at the bottom end of the discharge cavity (415) and is in communication with the outside.

6. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 4, characterized in that: A plurality of clearance grooves (416) are provided on the loading part (413) and the discharging part (414) of the smoke passage (41), and the clearance grooves (416) on the loading part (413) and the discharging part (414) correspond one to one. Two corresponding clearance grooves (416) on the loading part (413) and the discharging part (414) correspond to a loading frame (42), and two ends of the loading frame (42) are respectively inserted into the clearance grooves (416) on the loading part (413) and the discharging part (414).

7. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 6, characterized in that: The upper and lower ends of the loading frame (42) are both provided with shielding plates (44), which are connected to the loading frame (42) via a traction spring. The shielding plates (44) are used to shield the upper and lower ends of the loading frame (42) to prevent the water-absorbing medium (43) from leaking from the loading frame (42). The shielding plates (44) are provided with a communication opening (45), and in an initial state, the communication opening (45) is arranged in a staggered manner with the outer tube body (4).

8. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 7, characterized in that: A driving assembly (5) is also provided inside the outer tube body (4). The driving assembly (5) is connected to the plurality of loading frames (42). The driving assembly (5) is used to drive the plurality of loading frames (42) to perform up and down reciprocating motion inside the discharge chamber (415). When the loading frames (42) perform up and down reciprocating motion, the water absorbing medium (43) inside is replaced.

9. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 8, characterized in that: A trigger portion is provided in each of the clearance grooves (416) of the smoke passage (41). When the loading frame (42) moves up and down in the smoke passage (41), the shielding plate (44) on the loading frame (42) passes through the trigger portion, and the shielding plate (44) slides in a direction away from the center of the outer tube body (4) under the action of the trigger portion.

10. A system for processing gypsum powder using desulfurized gypsum and thermal energy according to claim 9, characterized in that: The triggering part comprises a plurality of triggering wedges (6), two triggering wedges (6) are arranged in a clearance groove (416), the two triggering wedges (6) are arranged at two ends of the clearance groove (416), the two triggering wedges (6) correspond to a shielding plate (44), two adjusting wedges (46) are installed on a side of the shielding plate (44) away from the loading frame (42), and the two adjusting wedges (46) correspond one to one with the two triggering wedges (6) in the corresponding clearance groove (416).

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