Integrated crystallization dryer for treating desulfurization wastewater concentrated solution

Abstract

The invention discloses an integrated crystallization dryer for treating a desulfurization wastewater concentrated solution, and relates to the technical field of dryers, the integrated crystallization dryer comprises a drying tank, the interior of the drying tank is fixedly connected with an air inlet assembly, the outer side of the air inlet assembly is movably connected with a first sleeve, and the outer side of the first sleeve is fixedly connected with a plurality of scraping frames; and material accumulation assemblies are arranged on the inner sides of the scraping frames correspondingly, and first rotating rods are fixedly connected to the material accumulation assemblies. By means of the air inlet assembly, hot air enters from the inlet end of an air inlet part, then enters an exhaust block along a vertical part and then is exhausted through the outlet ends of six exhaust holes, so that the hot air enters the interior of the drying tank in the radial direction of the exhaust block, and therefore the hot air can heat falling atomized waste liquid in multiple directions; and the production position of the crystal substances is more uniform, and the crystal substances are not accumulated on one side of the inner wall of the drying tank body, so that the attached crystal substances can be scraped off.

Description

Technical Field

[0001] The present invention relates to the technical field of dryers, and specifically to an integrated crystallization dryer for treating desulfurized wastewater concentrate. Background Art

[0002] Desulfurized wastewater is a by-product generated during industrial production processes such as coal-fired power plants. It contains high concentrations of sulfates, heavy metals, and other harmful substances. If directly discharged without treatment, it will cause serious pollution to the environment. To reduce pollution and achieve resource utilization, the treatment of desulfurized wastewater has become an important topic in the environmental protection field. Common treatment methods include chemical precipitation, membrane separation, and evaporation crystallization. Among them, the evaporation crystallization technology has gradually become the mainstream method for treating desulfurized wastewater due to its high efficiency and energy-saving characteristics. This technology evaporates the water in the wastewater by heating, causing the dissolved solid substances to crystallize and precipitate, thereby achieving the purification and resource recovery of the wastewater.

[0003] However, traditional evaporation crystallization equipment has a complex structure, high operation and maintenance costs, and is prone to the phenomenon of crystallized substances clogging the equipment when treating high-concentration wastewater, which affects the treatment efficiency. Moreover, during the collection and drying process of crystallized substances in existing equipment, there are often problems such as uneven heat distribution, one-way entry of hot air into the interior of the tank body, and uneven attachment of crystallized substances, resulting in unstable quality of crystallized substances and even the phenomenon of remelting. In addition, the thermal energy utilization rate of the equipment is low, and the excess hot air cannot be effectively recycled, increasing energy consumption. Therefore, an integrated crystallization dryer for treating desulfurized wastewater concentrate is needed to solve the existing deficiencies. Summary of the Invention

[0004] The purpose of the present invention is to make up for the deficiencies of the existing technology and provide an integrated crystallization dryer for treating desulfurized wastewater concentrate. By setting an air inlet assembly, it is beneficial to make the production position of crystallized substances more uniform, so as not to accumulate on one side of the inner wall of the drying tank, thereby facilitating the scraping of the attached crystallized substances; by setting a material accumulation assembly, the attachment area after the crystallization of the waste liquid is increased, further improving the production efficiency of crystallized substances, and thus improving the treatment efficiency of the wastewater concentrate; by setting a partition assembly, it is beneficial to enable the scraping rods in the middle of the drying tank to work simultaneously; by setting a heating assembly and a circulation pipe, it is possible to prevent the crystallized substances from remelting due to a decrease in temperature. Heating from the inside of the crystallized substances is beneficial to maintaining the dryness of the crystallized substances.

[0005] To achieve the above object, the present invention provides the following technical solution: An integrated crystallization dryer for treating desulfurized wastewater concentrate, comprising a drying tank. An air inlet assembly is fixedly connected inside the drying tank, and a first sleeve is movably connected to the outside of the air inlet assembly. A plurality of scraping frames are fixedly connected to the outside of the first sleeve. Material accumulation assemblies are arranged inside the scraping frames. A first rotating rod is fixedly connected to the material accumulation assemblies, and a first gear is fixedly connected to the top end of each first rotating rod. A toothed ring is fixedly connected to the top of the drying tank, and the first gears are all meshed with the toothed ring. A partition assembly is fixedly connected to the top of the drying tank. The partition assembly includes a support cylinder, and a spray head is fixedly connected inside the support cylinder. A driving assembly is arranged on the top of the partition assembly and is connected to the outside of the first rotating rod. A heating assembly is arranged at the bottom of the drying tank. A circulation pipe is arranged outside the drying tank, and the heating assembly is connected to the circulation pipe through the air inlet assembly.

[0006] The present invention is further configured such that the air inlet assembly includes an exhaust block, a cleaning rod, a connecting rod, a rotating blade, and a support frame. The exhaust block is fixedly connected to the top end of the support frame. The rotating blades are distributed in a circular array, and the rotating blades are all fixedly connected to the outside of the connecting rod. A pair of symmetric cleaning rods are fixedly connected to the top end of the connecting rod. The connecting rod movably penetrates through the axis of the exhaust block, and the cleaning rod is movably connected to the outside of the exhaust block. The rotating blade is located inside the support frame.

[0007] The present invention is further configured such that the support frame includes a vertical part, an air inlet part, and a communication part. The vertical part, the air inlet part, and the communication part form a T-shaped structure. The first sleeve is movably sleeved on the outside of the vertical part. The exhaust block is fixedly connected to the top end of the vertical part. A plurality of exhaust holes are formed in the exhaust block. The inside of the air inlet part, the inside of the vertical part, and the exhaust holes of the exhaust block are sequentially communicated. The vertical part and the communication part both fixedly penetrate through the tank wall of the drying tank.

[0008] The present invention is further configured such that the scraping frame includes a scraping strip and a connecting frame. One side of the connecting frame is fixedly connected to the scraping strip, and the other side of the connecting frame is fixedly connected to the outside of the first sleeve. The scraping strip is in contact with the inner wall of the drying tank. The first rotating rod penetrates through the connecting frame, and the first rotating rod is movably connected to the connecting frame.

[0009] The present invention is further configured such that the material accumulation assembly includes a material accumulation plate, a synchronous belt, a first synchronous pulley, a second synchronous pulley, a second rotating rod, and a scraping rod. A pair of symmetric first synchronous pulleys are fixedly connected to the bottom end of the first rotating rod. A pair of symmetric second synchronous pulleys are fixedly connected to the outside of the second rotating rod. The outside of the first synchronous pulley and the second synchronous pulley at adjacent heights are both sleeved with a synchronous belt, and the first synchronous pulley, the second synchronous pulley, and the synchronous belt form a belt drive structure. A group of scraping rods are fixedly connected between the two synchronous belts, and the scraping rod is movably connected to the surface of the material accumulation plate.

[0010] The present invention is further configured such that the material accumulation plate is fixedly connected to the inner side of the connection frame. The bottom of the first rotating rod movably penetrates through the material accumulation plate, and the first synchronous pulley is movably connected to the material accumulation plate through the first rotating rod. The second rotating rod movably penetrates through the material accumulation plate, and the second synchronous pulley is movably connected to the material accumulation plate through the second rotating rod.

[0011] The present invention is further configured such that the separation assembly further includes a fixed ring, a moving ring, and a support ring. The fixed ring is fixedly connected to the inside of the drying tank. The support ring is located inside the fixed ring, and the moving ring is movably connected between the fixed ring and the support ring. The support cylinder fixedly penetrates through the axis of the support ring, and the top end of the support cylinder is fixedly connected to the top axis of the drying tank. The first rotating rod penetrates through the moving ring, and the first rotating rod is movably connected to the moving ring.

[0012] The present invention is further configured such that the driving assembly includes a synchronous rod, a second sleeve, a second gear, and a third gear. A plurality of synchronous rods are fixedly connected to the outer side of the second sleeve, and the other ends of the synchronous rods are fixedly connected to the top end of the moving ring. The second sleeve penetrates through the axis of the second gear, and the second sleeve is fixedly connected to the second gear. The third gear is movably connected to the inside of the drying tank through a rotating shaft, and the second gear meshes with the third gear.

[0013] The present invention is further configured such that the support cylinder penetrates through the second sleeve, and the support cylinder is movably connected to the second sleeve. A servo motor is fixedly connected to the top end of the drying tank, and the output end of the servo motor is fixedly connected to the rotating shaft of the third gear.

[0014] The present invention is further configured such that the heating assembly includes a central tube and auxiliary tubes. The top end of the central tube is fixedly connected to the bottom end of the air inlet portion. A plurality of groups of symmetric auxiliary tubes are fixedly connected to the outer side of the central tube. The other ends of the auxiliary tubes fixedly penetrate through the tank wall of the drying tank, and the top of the central tube is connected to the inside of the communication portion. The bottom end of the circulation tube is connected to the end of the communication portion.

[0015] Compared with the prior art, the integrated crystallization dryer for treating desulfurized wastewater concentrate has the following beneficial effects:

[0016] First, through the provided air inlet assembly of the present invention, hot air enters through the inlet end of the air inlet portion, then enters the inside of the exhaust block along the vertical portion, and then is discharged through the outlet ends of the six exhaust holes. In this way, the hot air enters the inside of the drying tank along the radial direction of the exhaust block, so that the hot air can heat the falling mist-like waste liquid from multiple directions, which is beneficial to making the production position of the crystal more uniform and not accumulating on one side of the inner wall of the drying tank body, thus facilitating the scraping of the attached crystals.

[0017] Second, through the material accumulation component provided in the present invention, the scraping rods between the synchronous belts move synchronously, thereby scraping the crystals on the material accumulation plate, causing them to fall to the bottom of the drying tank. By setting, it is beneficial for the mist-like waste liquid near the axis of the tank body to quickly crystallize under the action of the drying hot air, increasing the adhesion area after the waste liquid crystallizes, further improving the production efficiency of the crystals, and thus improving the treatment efficiency of the wastewater concentrate.

[0018] Third, through the partition component provided in the present invention, the support ring is fixedly connected to the drying tank through the support cylinder, and the moving ring is movably connected between the fixed ring and the support ring. When the moving ring rotates, the first rotating rod will rotate around the axis of the moving ring, so that the first gear meshes with the toothed ring, thereby realizing the rotation of the first gear around the axis of the moving ring while rotating itself, which is beneficial to realizing the simultaneous operation of the scraping rods in the middle of the drying tank.

[0019] Fourth, through the heating component and the circulation pipe provided in the present invention, the excess flue gas inside the drying tank will be discharged through the circulation pipe, and enter the inside of the central pipe through the communication part, and then be dispersed into the inside of the auxiliary pipe, thereby continuously heating the bottom of the drying tank, and finally discharging from the outlet end of the auxiliary pipe, which is beneficial to improving the utilization of the waste heat inside the drying tank, continuously heating the crystals at the bottom of the drying tank, preventing the crystals from remelting due to the decrease in temperature, and heating from the inside of the crystals is beneficial to maintaining the dryness of the crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the drying tank of the present invention;

[0022] Figure 3 is of the present invention Figure 2 inverted structural schematic diagram;

[0023] Figure 4 is a schematic diagram of the air intake component, heating component and circulation pipe structure of the present invention;

[0024] Figure 5 is a schematic diagram of the air intake component, scraping frame and material accumulation component structure of the present invention;

[0025] Figure 6 is a schematic diagram of the material accumulation component and scraping frame structure of the present invention;

[0026] Figure 7 is a schematic diagram of the partition component and drive component structure of the present invention;

[0027] Figure 8 is a schematic diagram of the partition component structure of the present invention;

[0028] Figure 9 Schematic diagram of the driving component structure of the present invention;

[0029] Figure 10 of the present invention Figure 4 Enlarged structure schematic diagram of part A in it.

[0030] In the figure: 1, drying tank; 2, air inlet component; 201, exhaust block; 202, cleaning rod; 203, connecting rod; 204, rotating blade; 205, vertical part; 206, air inlet part; 207, communicating part; 3, sleeve one; 4, scraping frame; 401, scraping strip; 402, connecting frame; 5, material accumulation component; 501, material accumulation plate; 502, synchronous belt; 503, first synchronous pulley; 504, second synchronous pulley; 505, second rotating rod; 506, scraping rod; 6, first rotating rod; 7, first gear; 8, toothed ring; 9, separating component; 901, support cylinder; 902, fixed ring; 903, moving ring; 904, support ring; 10, spray head; 11, driving component; 1101, synchronous rod; 1102, sleeve two; 1103, second gear; 1104, third gear; 12, heating component; 1201, central pipe; 1202, auxiliary pipe; 13, circulation pipe; 14, exhaust hole; 15, servo motor. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Such as Figures 1 - 10As shown in the figure, the present invention provides a technical solution: an integrated crystallization dryer for treating desulfurized wastewater concentrate, which includes a drying tank 1. An air inlet assembly 2 is fixedly connected inside the drying tank 1, and a sleeve 3 is movably connected to the outside of the air inlet assembly 2. A plurality of scraping frames 4 are fixedly connected to the outside of the sleeve 3. In this embodiment, the number of scraping frames 4 is six. The scraping frames 4 can scrape the crystals on the inner wall of the drying tank 1, so that the crystals fall to the bottom of the tank for further drying. A material accumulation assembly 5 is arranged on the inner side of each scraping frame 4. The material accumulation assembly 5 is beneficial for the atomized waste liquid near the axis of the tank to quickly crystallize under the action of the drying hot air, increasing the adhesion area after the waste liquid crystallizes. A rotating rod 6 is fixedly connected to the material accumulation assembly 5, and a gear 7 is fixedly connected to the top of each rotating rod 6. A toothed ring 8 is fixedly connected to the top of the drying tank 1, and the gears 7 are all meshed with the toothed ring 8. A separating assembly 9 is fixedly connected to the top of the drying tank 1. The separating assembly 9 includes a support cylinder 901, and a spray head 10 is fixedly connected to the inside of the support cylinder 901. The spray head 10 helps to atomize the waste liquid and spray it into the drying tank 1, and it can quickly crystallize under the action of the drying gas. A driving assembly 11 is arranged on the top of the separating assembly 9, and the driving assembly 11 is connected to the outside of the rotating rod 6. A heating assembly 12 is arranged at the bottom of the drying tank 1. A circulating pipe 13 is arranged on the outside of the drying tank 1, and the heating assembly 12 is connected to the circulating pipe 13 through the air inlet assembly 2. Through the circulating pipe 13, it is helpful to pass the excess hot air through the bottom of the drying tank 1 again to continuously heat the crystals accumulated at the bottom of the drying tank 1 and prevent the crystals from remelting due to the decrease in temperature.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10As shown, the intake assembly 2 includes an exhaust block 201, a cleaning rod 202, a connecting rod 203, a rotating blade 204 and a support frame. The exhaust block 201 is fixedly connected to the top of the support frame. The rotating blades 204 are distributed in a circular array and can generate a rotating force when hot air flows, driving the connecting rod 203 to rotate, thereby controlling the cleaning rod 202 to clean the crystals on the surface of the exhaust block 201 and the outlet end of the exhaust hole 14. The rotating blades 204 are fixedly connected to the outside of the connecting rod 203. A set of symmetric cleaning rods 202 are fixedly connected to the top of the connecting rod 203. The connecting rod 203 movably penetrates through the axis of the exhaust block 201. The cleaning rod 202 is movably connected to the outside of the exhaust block 201. The rotating blades 204 are located inside the support frame. The support frame includes a vertical part 205, an intake part 206 and a connecting part 207. The vertical part 205, the intake part 206 and the connecting part 207 form a T-shaped structure. The first sleeve 3 is movably sleeved on the outside of the vertical part 205. The exhaust block 201 is fixedly connected to the top of the vertical part 205. The exhaust block 201 is provided with several exhaust holes 14. In the embodiment, the number of exhaust holes 14 is six, and the exhaust holes 14 are distributed in a circular array. Filter grids are arranged at the outlet ends of the exhaust holes 14 to prevent the crystals inside the drying tank 1 from accumulating at the outlet ends of the exhaust holes 14. The inside of the intake part 206, the inside of the vertical part 205 and the exhaust holes 14 of the exhaust block 201 are sequentially connected in communication. The vertical part 205 and the connecting part 207 both fixedly penetrate through the tank wall of the drying tank 1.

[0034] The hot air enters through the inlet end of the intake part 206, then enters the inside of the exhaust block 201 along the vertical part 205, and then is discharged through the outlet ends of the six exhaust holes 14. In this way, the hot air enters the inside of the drying tank 1 along the radial direction of the exhaust block 201, so that the hot air can heat the falling fog-like waste liquid from multiple directions, which is beneficial to making the production position of the crystals more uniform and not accumulating on one side of the inner wall of the drying tank 1, thereby facilitating the scraping off of the attached crystals. During the movement of the hot air in the vertical part 205, it drives the rotating blade 204 to rotate, thereby causing the connecting rod 203 to rotate, controlling the cleaning rod 202 to rotate outside the exhaust hole 14, and being able to scrape off the crystals attached to the surface of the exhaust block 201 and the outlet end of the exhaust hole 14, preventing the crystals from blocking the outlet end of the exhaust hole 14 and keeping the hot air continuously entering the inside of the drying tank 1.

[0035] As Figure 1 and Figure 6 shown, the scraping frame 4 includes a scraping strip 401 and a connecting frame 402. One side of the connecting frame 402 is fixedly connected to the scraping strip 401, and the other side of the connecting frame 402 is fixedly connected to the outside of the first sleeve 3. The scraping strip 401 is in contact with the inner wall of the drying tank 1. The first rotating rod 6 penetrates through the connecting frame 402, and the first rotating rod 6 is movably connected to the connecting frame 402. As the scraping strip 401 rotates inside the drying tank 1, it helps to scrape off the crystals attached to the inner wall of the drying tank 1.

[0036] As Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the material accumulation component 5 includes a material accumulation plate 501, a synchronous belt 502, a first synchronous pulley 503, a second synchronous pulley 504, a second rotating rod 505 and a scraping rod 506. A set of symmetric first synchronous pulleys 503 are fixedly connected to the bottom end of the first rotating rod 6. A set of symmetric second synchronous pulleys 504 are fixedly connected to the outer side of the second rotating rod 505. Synchronous belts 502 are sleeved on the outer sides of the first synchronous pulleys 503 and the second synchronous pulleys 504 at adjacent heights. Moreover, the first synchronous pulley 503, the second synchronous pulley 504 and the synchronous belt 502 form a belt drive structure. A set of scraping rods 506 are fixedly connected between the two synchronous belts 502. In this embodiment, the number of the scraping rods 506 is two, which are respectively located on both sides of the material accumulation plate 501, and the scraping rods 506 are movably connected to the surface of the material accumulation plate 501. The material accumulation plate 501 is fixedly connected to the inside of the connection frame 402. The bottom of the first rotating rod 6 movably penetrates through the material accumulation plate 501, and the first synchronous pulley 503 is movably connected to the material accumulation plate 501 through the first rotating rod 6. The second rotating rod 505 movably penetrates through the material accumulation plate 501, and the second synchronous pulley 504 is movably connected to the material accumulation plate 501 through the second rotating rod 505.

[0037] When the first gear 7 meshes and rotates with the toothed ring 8, it drives the first rotating rod 6 to rotate synchronously. Thus, under the action of the first synchronous pulley 503 and the second synchronous pulley 504, the synchronous belt 502 is driven, and the scraping rods 506 between the synchronous belts 502 move synchronously, so as to scrape the crystallized substances on the material accumulation plate 501, making them fall to the bottom of the drying tank 1. By setting, it is beneficial for the mist-like waste liquid near the axis position of the tank body to quickly crystallize under the action of the drying hot air, increasing the adhesion area after the waste liquid crystallizes, further improving the production efficiency of the crystallized substances, and thus improving the treatment efficiency of the waste water concentrate.

[0038] As Figure 1 , Figure 7 and Figure 8 As shown, the separation component 9 further includes a fixed ring 902, a moving ring 903 and a support ring 904. The fixed ring 902 is fixedly connected to the inside of the drying tank 1. The support ring 904 is located inside the fixed ring 902, and the moving ring 903 is movably connected between the fixed ring 902 and the support ring 904. The support cylinder 901 fixedly penetrates through the axis of the support ring 904, and the top end of the support cylinder 901 is fixedly connected to the top axis of the drying tank 1. The first rotating rod 6 penetrates through the moving ring 903, and the first rotating rod 6 is movably connected to the moving ring 903.

[0039] The support ring 904 is fixedly connected to the drying tank 1 through the support cylinder 901, and the moving ring 903 is movably connected between the fixed ring 902 and the support ring 904. When the moving ring 903 rotates, the first rotating rod 6 rotates around the axis of the moving ring 903, so that the first gear 7 meshes with the toothed ring 8, thereby realizing the rotation of the first gear 7 around the axis of the moving ring 903 while rotating itself, which is beneficial to the simultaneous operation of the scraping rod 506 in the middle of the drying tank 1.

[0040] As Figure 1 and Figure 7 shown, the driving assembly 11 includes a synchronous rod 1101, a second sleeve 1102, a second gear 1103 and a third gear 1104. A plurality of synchronous rods 1101 are fixedly connected to the outer side of the second sleeve 1102, and the other ends of the synchronous rods 1101 are fixedly connected to the top end of the moving ring 903. The second sleeve 1102 passes through the axis of the second gear 1103, and the second sleeve 1102 is fixedly connected to the second gear 1103. The third gear 1104 is movably connected to the inside of the drying tank 1 through a rotating shaft, and the second gear 1103 meshes with the third gear 1104. The support cylinder 901 passes through the second sleeve 1102, and the support cylinder 901 is movably connected to the second sleeve 1102. A servo motor 15 is fixedly connected to the top end of the drying tank 1, and the output end of the servo motor 15 is fixedly connected to the rotating shaft of the third gear 1104.

[0041] Start the servo motor 15 to drive the third gear 1104 to rotate, so that the second gear 1103 drives the second sleeve 1102 to rotate synchronously. Under the action of the synchronous rod 1101, the moving ring 903 rotates between the fixed ring 902 and the support ring 904, and the first rotating rod 6 movably passes through the moving ring 903, so that the first rotating rod 6 rotates around the axis of the second sleeve 1102.

[0042] As Figure 1 and Figure 4 shown, the heating assembly 12 includes a central tube 1201 and auxiliary tubes 1202. The top end of the central tube 1201 is fixedly connected to the bottom end of the air inlet part 206. A plurality of groups of symmetric auxiliary tubes 1202 are fixedly connected to the outer side of the central tube 1201. The other ends of the auxiliary tubes 1202 all fixedly penetrate through the wall of the drying tank 1, and the top of the central tube 1201 is connected to the inside of the communication part 207. The bottom end of the circulation tube 13 is connected to the end of the communication part 207.

[0043] The excess flue gas inside the drying tank 1 will be discharged through the circulation pipe 13, enter the interior of the central pipe 1201 through the connecting part 207, and then be dispersed into the interior of the auxiliary pipe 1202, so as to continuously heat the bottom of the drying tank 1, and finally be discharged from the outlet end of the auxiliary pipe 1202, which is beneficial to improving the utilization of the waste heat inside the drying tank 1, continuously heating the crystals at the bottom of the drying tank 1, preventing the crystals from remelting after the temperature drops, and heating from the inside of the crystals is beneficial to maintaining the dryness of the crystals.

[0044] Working principle: During use, the wastewater concentrate is sprayed into the interior of the drying tank 1 through the top pipe of the spray head 10. When the misty wastewater falls, hot air is injected through the inlet end of the air inlet part 206. The hot air enters the exhaust holes 14 of the exhaust block 201 along the vertical part 205 and is sprayed into the interior of the drying tank 1 from the outlet end of the exhaust holes 14, so as to heat and evaporate the falling wastewater. In addition, during the movement of the hot air inside the vertical part 205 and the exhaust holes 14, under the action of the rotating blade 204, the connecting rod 203 is driven to rotate, so that the cleaning rod 202 rotates on the surface of the exhaust block 201, so as to remove the crystals on the surface of the exhaust block 201 and at the outlet end of the exhaust block 201. The generated crystal substances will accumulate on the inner wall of the drying tank 1 and the surface of the material accumulation plate 501. At the same time, the servo motor 15 is started to drive the gear three 1104 to rotate, so that the gear two 1103 drives the sleeve two 1102 to rotate synchronously. Under the action of the synchronous rod 1101, the moving ring 903 rotates between the fixed ring 902 and the support ring 904, and the first rotating rod 6 movably penetrates through the moving ring 903, so that the first rotating rod 6 rotates around the axis of the sleeve two 1102, and drives the scraping strip 401 to scrape the crystals on the inner wall of the drying tank 1. The connecting frame 402 and the sleeve one 3 rotate around the axis of the vertical part 205. Since the gear one 7 meshes with the toothed ring 8, the first rotating rod 6 rotates simultaneously. Under the action of the first synchronous pulley 503 and the second synchronous pulley 504, the synchronous belt 502 rotates, so that the scraping rods 506 between the synchronous belts 502 move synchronously, so as to scrape the crystals on the material accumulation plate 501 and make them fall to the bottom of the drying tank 1; The excess flue gas inside the drying tank 1 will be discharged through the circulation pipe 13, enter the interior of the central pipe 1201 through the connecting part 207, and then be dispersed into the interior of the auxiliary pipe 1202, so as to continuously heat the bottom of the drying tank 1, and finally be discharged from the outlet end of the auxiliary pipe 1202.

[0045] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An integrated crystallization dryer for treating desulfurization wastewater concentrate, comprising a drying tank (1), characterized in that: The interior of the drying tank (1) is fixedly connected to an air intake assembly (2), and the outer side of the air intake assembly (2) is movably connected to a sleeve (3), the outer side of the sleeve (3) is fixedly connected to a plurality of scrapers (4), the inner side of each scraper (4) is provided with a material accumulation assembly (5), the material accumulation assembly (5) is fixedly connected to a rotary rod (6), and the top of each rotary rod (6) is fixedly connected to a gear (7), the top of the drying tank (1) is fixedly connected to a gear ring (8), and the gears (7) are meshed with the gear ring (8), and the drying tank (1) ) is fixedly connected to the top of the drying tank (1), the partition assembly (9) comprises a support tube (901), the inner side of the support tube (901) is fixedly connected to a spray head (10), the top of the partition assembly (9) is provided with a driving assembly (11), and the driving assembly (11) is connected to the outer side of the rotary rod (6), the bottom of the drying tank (1) is provided with a heating assembly (12), the outer side of the drying tank (1) is provided with a circulation pipe (13), and the heating assembly (12) is connected to the circulation pipe (13) through an air intake assembly (2).

2. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 1, characterized in that: The air intake assembly (2) comprises an exhaust block (201), a cleaning rod (202), a connecting rod (203), a rotary vane (204) and a support frame. The exhaust block (201) is fixedly connected to the top end of the support frame. The rotary vanes (204) are distributed in a circular array and are all fixedly connected to the outside of the connecting rod (203). A group of symmetrical cleaning rods (202) are fixedly connected to the top end of the connecting rod (203). The connecting rod (203) movably passes through the axis of the exhaust block (201). The cleaning rod (202) is movably connected to the outside of the exhaust block (201). The rotary vane (204) is located on the inside of the support frame.

3. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 2, characterized in that: The support frame comprises a vertical portion (205), an air inlet portion (206) and a connecting portion (207); the vertical portion (205), the air inlet portion (206) and the connecting portion (207) form a T-shaped structure; the sleeve (3) is movably sleeved on the outer side of the vertical portion (205); the exhaust block (201) is fixedly connected to the top of the vertical portion (205); a plurality of exhaust holes (14) are provided on the exhaust block (201); the interior of the air inlet portion (206), the interior of the vertical portion (205) and the exhaust holes (14) of the exhaust block (201) are sequentially connected; and the vertical portion (205) and the connecting portion (207) are both fixedly passed through the tank wall of the drying tank (1).

4. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 1, characterized in that: The scraper frame (4) comprises a scraper strip (401) and a connecting frame (402), one side of the connecting frame (402) is fixedly connected to the scraper strip (401), and the other side of the connecting frame (402) is fixedly connected to the outer side of the sleeve (3), the scraper strip (401) is in contact with the inner wall of the drying tank (1), the rotating rod (6) passes through the connecting frame (402), and the rotating rod (6) is movably connected to the connecting frame (402).

5. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 1, characterized in that: The material accumulation component (5) comprises a material accumulation plate (501), a synchronous belt (502), a synchronous wheel one (503), a synchronous wheel two (504), a rotary rod two (505) and a scraper rod (506); the bottom end of the rotary rod one (6) is fixedly connected to a group of symmetrical synchronous wheels one (503); the outer side of the rotary rod two (505) is fixedly connected to a group of symmetrical synchronous wheels two (504); the outer sides of the synchronous wheels one (503) and two (504) at adjacent heights are both sleeved with synchronous belts (502); the synchronous wheels one (503), two (504) and the synchronous belt (502) constitute a belt transmission structure; a group of scraper rods (506) are fixedly connected between the two synchronous belts (502), and the scraper rods (506) are movably connected to the surface of the material accumulation plate (501).

6. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 5, characterized in that: The material accumulation plate (501) is fixedly connected to the inner side of the connection frame (402), the bottom of the rotary rod 1 (6) movably penetrates the material accumulation plate (501), and the synchronous wheel 1 (503) is movably connected to the material accumulation plate (501) through the rotary rod 1 (6), the rotary rod 2 (505) movably penetrates the material accumulation plate (501), and the synchronous wheel 2 (504) is movably connected to the material accumulation plate (501) through the rotary rod 2 (505).

7. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 1, characterized in that: The partition assembly (9) further comprises a fixed ring (902), a movable ring (903) and a support ring (904); the fixed ring (902) is fixedly connected to the interior of the drying tank (1); the support ring (904) is located on the inner side of the fixed ring (902); and the movable ring (903) is movably connected between the fixed ring (902) and the support ring (904); the support tube (901) is fixedly passed through the axis of the support ring (904); and the top end of the support tube (901) is fixedly connected to the top axis of the drying tank (1); the rotary rod (6) passes through the movable ring (903); and the rotary rod (6) is movably connected to the movable ring (903).

8. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 1, characterized in that: The driving assembly (11) comprises a synchronization rod (1101), a second sleeve (1102), a second gear (1103) and a third gear (1104); the outer side of the second sleeve (1102) is fixedly connected with a plurality of synchronization rods (1101), and the other ends of the synchronization rods (1101) are fixedly connected to the top end of the moving ring (903); the second sleeve (1102) passes through the axis of the second gear (1103), and the second sleeve (1102) is fixedly connected to the second gear (1103); the third gear (1104) is movably connected to the interior of the drying tank (1) via a rotating shaft, and the second gear (1103) is meshed with the third gear (1104).

9. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 8, characterized in that: The support tube (901) passes through the second sleeve (1102), and the support tube (901) is movably connected to the second sleeve (1102). The top end of the drying tank (1) is fixedly connected to a servo motor (15), and the output end of the servo motor (15) is fixedly connected to the rotating shaft of the third gear (1104).

10. The integrated crystallization dryer for treating desulfurization wastewater concentrate according to claim 2, characterized in that: The heating assembly (12) comprises a central tube (1201) and auxiliary tubes (1202); the top end of the central tube (1201) is fixedly connected to the bottom end of the air inlet portion (206); the outer side of the central tube (1201) is fixedly connected to a plurality of groups of symmetrical auxiliary tubes (1202); the other ends of the auxiliary tubes (1202) are fixedly passed through the tank wall of the drying tank (1); the top of the central tube (1201) is connected to the inside of the connecting portion (207); and the bottom end of the circulation tube (13) is connected to the end of the connecting portion (207).

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