Raw material drying equipment for waterproof material production

Abstract

The invention discloses raw material drying equipment for waterproof material production, relates to the technical field of drying equipment, and aims to provide a drying system which is compact in structure, efficient and energy-saving. The equipment comprises a feeding section, a fluidization drying section, a feeding screw rod and a fluidization screw rod, and materials are pushed by the feeding screw rod and the fluidization screw rod to move upwards along the outer wall of the equipment; the equipment adopts a double drying process: firstly, primary drying is carried out through the fluidized drying section, then further drying is carried out in the pneumatic drying section, moisture in the materials is ensured to be fully removed, and the equipment is further provided with a heat recovery system, so that the heat recovery efficiency of the equipment is improved. The energy utilization efficiency is improved by recovering heat in hot gas, and the equipment has a small occupied area and a remarkable drying effect through optimized structural design, and is suitable for production of special materials such as waterproof materials.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to raw material drying equipment for producing waterproof materials. Background Art

[0002] In the modified asphalt waterproof coating and its preparation method, drying the raw materials is an important step to ensure the quality of the coating, especially for some key raw materials such as activated steel wire tire rubber powder and calcite powder, which usually contain a certain amount of moisture. If they are not properly dried, these raw materials may have adverse effects in the production process. As an important raw material for waterproof coating, activated steel wire tire rubber powder has a certain moisture content. Especially when stored in a humid environment, the rubber powder is easy to absorb moisture. If the moisture in the rubber powder is not completely removed, steam may be generated during high-temperature processing, resulting in bubbles in the coating or unstable physical properties, affecting the quality of the final product. Therefore, it is necessary to reduce its moisture content to a reasonable range through effective drying equipment to ensure the quality and stability of the coating. Calcite powder, as one of the fillers of waterproof coating, is often used to improve the fluidity of the coating and increase its physical properties. However, calcite powder is also easy to absorb moisture due to improper storage environment, resulting in an increase in its moisture content. If the moisture is too high, the fluidity of the calcite powder will decrease, thereby affecting the uniformity of the coating and the adhesion of the coating. Therefore, the calcite powder needs to be dried to ensure that its degree of dryness meets the production requirements, thereby improving the quality of the waterproof coating.

[0003] Chinese invention patent CN109959239B discloses a tire particle dehydration dryer with an IPC classification number of F26B, which adopts facilities such as a drying cylinder, a hot air blower and an air supply mechanism. The drying tube of the equipment is evenly provided with through holes for conveying hot air to the material for drying, and at the same time, the water vapor is recovered by the water vapor treatment mechanism to save energy. Although the equipment effectively utilizes the hot air and water vapor recovery system in the drying process, it still has the following shortcomings: the overall structure of the equipment is large, the floor space is large, and the handling and installation are cumbersome. The drying process of the material may be affected by the uneven distribution of the airflow, resulting in unsatisfactory drying effect, especially when drying raw materials of different shapes and particle sizes, it is difficult to maintain consistency. The heat recovery system has certain limitations and cannot fully utilize the heat sources inside and outside the equipment, thereby affecting the overall energy efficiency.

[0004] The specification of Chinese invention patent CN112503885B discloses a high-utilization rubber product raw material drying equipment with IPC classification number F26B. It adopts a more traditional hot air drying method, which mainly relies on the flow of hot air in the drying cylinder to dry the material. Although this method is effective in some applications, in the production of waterproof materials, due to the particularity of the material and its sensitivity to drying temperature, the traditional hot air drying method may lead to energy waste, and the hot air circulation is insufficient, resulting in excessively long or uneven drying time.

[0005] The above design utilizes airflow to suspend and heat the raw materials to accelerate the drying process. Although the equipment can achieve good drying effects, due to the lack of a heat recovery system, the energy utilization rate is low, and the uniformity of the material is poor, and the stable drying of the waterproof material raw materials cannot be ensured. Secondly, the existing drying equipment generally has the problems of low drying efficiency and large footprint, and it is difficult to adapt to the special requirements of waterproof materials for the drying process. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a raw material drying device for producing waterproof materials to solve the above-mentioned problems.

[0007] The objective of the present invention is achieved through the following technical solutions: a raw material drying device for waterproof material production, comprising a feeding section, the top of the feeding section is rotatably connected to a fluidized drying section, the outer ends of the feeding section and the fluidized drying section are rotatably connected to a feeding screw and a fluidizing screw respectively, the feeding screw and the fluidizing screw are fixedly connected, the fluidized drying section and the fluidizing screw are both conical structures, and the end with a larger diameter of the conical structure is arranged toward the direction close to the feeding section, the outer end of the feeding screw is rotatably connected to a feeding box, a plurality of through holes are provided on the fluidized drying section, the bottom end of the feeding screw is fixedly connected to a turntable, the bottom end of the turntable is rotatably connected to a fixed disk, the bottom end of the fixed disk is fixedly connected to a motor, the motor power shaft passes through the fixed disk, and the penetrating portion is fixedly connected to the bottom end of the turntable, the top of the feed box is fixed A water vapor collection section is connected, an exhaust pipe 1 is fixedly connected to the top of the water vapor collection section, an airflow drying section is fixedly connected to the top of the water vapor collection section, the airflow drying section is a hollow structure, and the hollow part is connected to the inner wall of the airflow drying section through multiple through holes, and is a conical structure, and the end with a smaller diameter of the conical structure is arranged toward the direction close to the fluidizing screw, the fluidizing drying section and the fluidizing screw extend into the airflow drying section, the bottom end of the airflow drying section is connected to the external air supply system through the air supply ring 1, and the air supply ring 1 is connected to the hollow part of the airflow drying section, the outer end of the fixed disk is fixedly connected to the collecting hopper, the top of the collecting hopper is fixedly connected to the baffle assembly, the inner wall of the feeding section is fixedly connected to the air supply ring 2, the bottom end of the air supply ring 2 passes through the turntable and the motor, and the penetrating part is connected to the external air supply equipment. .

[0008] The present invention optimizes the structure of the fluidized drying section and the airflow drying section and utilizes a dual drying process to ensure that the raw materials are fully exposed to the hot air flow during the drying process, thereby greatly improving the drying efficiency. The drying process of the material is more uniform, reducing time waste and uneven drying phenomena. By introducing a hot air recovery system in the design and rationally configuring the airflow paths of each section, the equipment can better recover waste heat and improve energy utilization. The waste gas generated during the material drying process is reused through a recovery device, thereby reducing energy consumption and reducing production costs. By optimizing the equipment layout and using innovative designs such as a conical fluidized drying section, the overall volume of the equipment is effectively reduced, which is suitable for efficient layout in the waterproof material production line, saving production space and improving the integration of the production line. The equipment design of the present invention can adapt to the drying of raw materials of different particle sizes and shapes, providing a more flexible adjustment space, making it more applicable and not only limited to the production of waterproof materials, but also widely used in the drying treatment of other materials.

[0009] The top of the airflow drying section is fixedly connected with a conical collecting cover, and the end of the conical collecting cover with a smaller diameter is arranged away from the airflow drying section.

[0010] The baffle assembly comprises a baffle layer 1 which is sleeved on the outside of the water vapor collecting section, a baffle layer 2 is arranged on the outside of the baffle layer 1, and a baffle layer 3 is arranged on the outside of the baffle layer 2.

[0011] The adjacent water vapor collection sections, baffle layer 1, baffle layer 2, and baffle layer 3 are 10-15 cm apart. The bottom ends of baffle layer 2 and baffle layer 3 are fixedly connected to the top of the collecting hopper, and the bottom end of baffle layer 1 is 10-15 cm apart from the top of the collecting hopper.

[0012] An exhaust pipe 2 is fixedly connected to the baffle layer 3 near its top, and the exhaust pipe 2 is communicated with the inner wall of the baffle layer 3. An opening is arranged at the top of the baffle layer 2.

[0013] An air inlet pipe is fixedly connected to a position near the bottom end of the baffle layer three; the baffle layer one, the baffle layer two and the baffle layer three are all hollow structures, and the air inlet pipe is connected to the hollow part of the baffle layer three.

[0014] A pipe is fixedly connected between the inner wall of baffle layer three and the top of baffle layer two, and the pipe connects the hollow parts of baffle layer three and baffle layer two; a pipe is fixedly connected between the bottom end of baffle layer two and the bottom end of baffle layer one, and the pipe connects the hollow parts of baffle layer two and baffle layer one.

[0015] A manifold is fixedly connected between the top end of the baffle layer 1 and the bottom end of the air supply ring 2, and the manifold connects the hollow part of the baffle layer 1 with the air supply ring 2.

[0016] The end of the exhaust pipe 1 away from the water vapor collection section passes through the baffle layer 1, the baffle layer 2 and the baffle layer 3 in sequence, and the penetrating part is wound around the outer wall of the manifold, and the bottom end of the collecting hopper is connected with the external equipment through a pipeline.

[0017] The water vapor collection section, baffle layer 1, baffle layer 2 and baffle layer 3 are all connected to the inside of the collecting hopper. A feed pipe is fixedly connected to the outer end of the feed box, and the feed pipe is connected to the inner wall of the feed box. The end of the feed pipe away from the feed box passes through baffle layer 1, baffle layer 2 and baffle layer 3 in sequence, and the passing part is connected to the external feeding system. The feed pipe is arranged obliquely upward at the end away from the feed box.

[0018] The beneficial effects of the present invention are: 1. Efficient drying and space saving. The present invention realizes the spiral rising and fluidized drying of materials through the ingenious combination of the feeding section, the fluidized drying section, the feeding screw and the fluidized screw. The materials move upward along the outer wall of the equipment under the push of the feeding screw and the fluidized screw, and are dried under the action of the high-temperature gas. This design completes the material conveying and drying process in a smaller space, reduces the floor space of the equipment, and is suitable for factories with limited production space.

[0019] 2. Double drying, significant drying effect. The material is first dried in the fluidized drying section, where high-temperature gas is used to fluidize and dry the material through the through holes. Subsequently, the material enters the airflow drying section, where it is suspended and rises under the action of the ejected hot air for secondary drying. Through two consecutive drying processes, the moisture in the material is fully removed, and the drying effect is significantly improved, meeting the requirements for low moisture content of raw materials in the production of waterproof materials.

[0020] 3. The conical structure optimizes the airflow and material flow. The fluidized drying section and the fluidized screw adopt a conical structure, with the end with a larger diameter facing the feed section. This design reduces the resistance encountered by the material during upward transportation and improves the transportation efficiency. At the same time, the conical structure is conducive to the uniform distribution of high-temperature gas, increases the contact area between the material and the gas, and improves the drying efficiency.

[0021] 4. The baffle assembly improves the gas-solid separation efficiency. Baffle layers 1, 2 and 3 are added to form a multi-stage baffle structure. The spacing between adjacent baffle layers is reasonable. The direction of the gas changes continuously when passing through the baffle layers, and the speed gradually slows down. This design effectively promotes the sedimentation of material particles, prevents fine particles from being lost with the air flow, and improves the recovery rate and drying quality of the material.

[0022] 5. Independent gas exhaust channel to prevent airflow interference. The gases generated in the two drying processes are discharged independently through exhaust pipe 1 and exhaust pipe 2. Exhaust pipe 1 is used to discharge high-temperature water vapor after fluidized drying, and exhaust pipe 2 is used to discharge the gas after airflow drying. This design avoids mutual interference between airflows in different drying stages and ensures the stability and efficiency of the drying process.

[0023] 6. Heat recovery and energy saving. The present invention realizes effective heat recovery through the ingenious configuration of the manifold, the baffle and the air inlet pipe. During the discharge process, the high-temperature exhaust gas exchanges heat with the normal-temperature air flowing in the baffle, which reduces the exhaust temperature and increases the temperature of the normal-temperature air. The air after absorbing heat flows back to the air supply ring through the manifold to participate in the next round of drying process. This heat recovery mechanism greatly reduces energy consumption and improves the thermal efficiency of the equipment.

[0024] 7. Material cooling is convenient for subsequent processing. In addition to achieving energy saving, the heat recovery system also cools the material. During the sinking process, the dried material exchanges heat with the airflow in the baffle layer, which reduces the temperature of the material, facilitates subsequent packaging and processing, and prevents high temperature from affecting subsequent processes.

[0025] 8. The feed pipe is tilted to ensure smooth material transportation. The feed pipe is tilted upward to utilize gravity to allow the material to slide smoothly into the feed box, avoiding material blockage in the feed pipe, improving feeding efficiency and ensuring production continuity.

[0026] 9. It complies with energy conservation and environmental protection requirements and has significant economic benefits. The present invention greatly reduces energy consumption through multiple heat recovery and optimized drying processes, which complies with the national policy requirements of energy conservation and emission reduction. At the same time, the equipment has a compact structure and occupies a small area, which reduces the investment and operating costs of the enterprise and has good economic benefits.

[0027] 10. With a wide range of applications and convenient operation and maintenance, the equipment is suitable for the drying of various raw materials of waterproof materials and has broad application prospects. The various components of the equipment are reasonably designed and easy to disassemble and clean, which facilitates daily maintenance and reduces the maintenance cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall structure diagram of the present invention; Figure 2 The local explosion of the present invention Figure 1 ; Figure 3 The local explosion of the present invention Figure 2 ; Figure 4 The local explosion of the present invention Figure 3 ; Figure 5 It is an overall exploded view of the present invention; Figure 6 It is a front view of the present invention; Figure 7 For the present invention Figure 6 Middle AA section view; Figure 8 For the present invention Figure 7 Middle BB section view; Fig. 9 For the present invention Figure 7 Middle CC section view; Fig.10 It is the appearance structure diagram of the present invention.

[0029] Description of the symbols in the figure 1. Feeding section; 2. Fluidized drying section; 3. Feeding screw; 4. Fluidized screw; 5. Feeding box; 6. Turntable; 7. Fixed plate; 8. Motor; 9. Water vapor collecting section; 10. Exhaust pipe 1; 11. Airflow drying section; 12. Air supply ring 1; 13. Collecting hopper; 14. Air supply ring 2; 15. Baffle layer 1; 16. Baffle layer 2; 17. Baffle layer 3; 18. Inlet pipe; 19. Converging pipe; 20. Feeding pipe. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] It is to be noted that the concepts of directions “left”, “right”, “up”, “down”, “front”, “back”, “inside” and “outside” in the following schemes are all relative directions and will not be listed one by one here.

[0032] Embodiment 1: like Figures 1 to 10 As shown, this embodiment provides a raw material drying equipment for waterproof material production, including a feeding section 1, the top of the feeding section 1 is rotatably connected to a fluidized drying section 2, the outer ends of the feeding section 1 and the fluidized drying section 2 are respectively rotatably connected to a feeding screw 3 and a fluidizing screw 4, the feeding screw 3 and the fluidizing screw 4 are fixedly connected, the fluidized drying section 2 and the fluidizing screw 4 are both conical structures, and the end with a larger diameter of the conical structure is arranged toward the direction close to the feeding section 1.

[0033] The outer end of the feed screw 3 is rotatably connected to the feed box 5, a plurality of through holes are opened on the fluidized drying section 2, the bottom end of the feed screw 3 is fixedly connected to the turntable 6, the bottom end of the turntable 6 is rotatably connected to the fixed disk 7, the bottom end of the fixed disk 7 is fixedly connected to the motor 8, the power shaft of the motor 8 passes through the fixed disk 7, and the passing part is fixedly connected to the bottom end of the turntable 6.

[0034] The top of the feed box 5 is fixedly connected to a water vapor collecting section 9, the top of the water vapor collecting section 9 is fixedly connected to an exhaust pipe 10, and the top is also fixedly connected to an airflow drying section 11. The airflow drying section 11 is a hollow structure, and the hollow part is connected to the inner wall of the airflow drying section 11 through a plurality of through holes. The airflow drying section 11 is a conical structure, and the end with a smaller diameter of the conical structure is arranged in a direction close to the fluidizing screw 4, and the fluidizing drying section 2 and the fluidizing screw 4 extend into the airflow drying section 11.

[0035] The bottom end of the airflow drying section 11 is connected to the external air supply system through an air supply ring 12, and the air supply ring 12 is connected to the hollow part of the airflow drying section 11. The outer end of the fixed plate 7 is fixedly connected to a collecting hopper 13, and the top of the collecting hopper 13 is fixedly connected to a deflection assembly. The inner wall of the feed section 1 is fixedly connected to an air supply ring 2 14, and the bottom end of the air supply ring 2 14 passes through the turntable 6 and the motor 8, and the passing part is connected to the external air supply equipment.

[0036] In addition, a conical collecting cover is fixedly connected to the top of the airflow drying section 11 , and the end of the conical collecting cover with a smaller diameter is arranged away from the airflow drying section 11 .

[0037] Working process: When in use, the raw materials to be dried are introduced into the feed box 5 through the feed pipe, and the motor 8 is started at the same time. The motor 8 drives the feed screw 3 and the fluidizing screw 4 to rotate through the turntable 6. The feed screw 3 and the fluidizing screw 4 push the raw materials upward along the outer walls of the feed section 1 and the fluidizing drying section 2 during rotation.

[0038] At the same time, high-temperature gas is introduced into the gas supply ring 2 14 through external gas supply equipment. The high-temperature gas rises along the inner walls of the feed section 1 and the fluidized drying section 2, and flows out from the through holes on the fluidized drying section 2, enters the outer wall of the fluidized drying section 2, and dries the raw materials thereon. In this process, the raw materials on the outer wall of the fluidized drying section 2 form a fluidized state under the action of the gas, and the gas takes away the moisture in the raw materials.

[0039] The high-temperature gas containing moisture is collected through the water vapor collecting section 9 and discharged through the exhaust pipe 10. The discharged high-temperature water vapor contacts the conical collector hood. The setting of the conical collector hood optimizes the flow path of the gas and improves the drying efficiency.

[0040] The raw materials that have completed fluidized drying enter the airflow drying section 11 driven by the fluidizing screw 4, and dry hot air is introduced into the hollow part of the airflow drying section 11 through the air supply ring 12. The hot air is ejected through the through holes of the airflow drying section 11, so that the raw materials are suspended and move upward under the action of the airflow. In this process, the moisture in the raw materials is further evaporated to complete the secondary drying.

[0041] The raw materials after secondary drying pass through the water vapor collecting section 9 , enter the collecting hopper 13 , and are discharged through the bottom of the collecting hopper 13 .

[0042] Use of the feed pipe 20: When in use, the raw materials to be dried are introduced into the feed box 5 through the feed pipe 20. The feed pipe 20 is arranged obliquely upward to help the materials slide down into the feed box 5 under the action of gravity.

[0043] Heat exchange process: The high-temperature gas containing water is discharged through the exhaust pipe 10, and the discharged high-temperature water vapor exchanges heat with the manifold 19, transferring heat to the gas in the manifold 19 to achieve heat recovery.

[0044] By recovering heat, energy is saved while the raw materials are cooled. Two consecutive dryings can effectively remove moisture from the raw materials, and the gases after the two dryings are discharged independently without interfering with each other.

[0045] The drying equipment of this embodiment realizes fluidized drying of raw materials through the spiral rise of the feed section 1, the fluidized drying section 2, the feed screw 3 and the fluidized screw 4. The setting of the airflow drying section 11 realizes secondary drying of the raw materials and enhances the drying effect. The application of the conical collector hood optimizes the gas flow path and improves the drying efficiency. The equipment realizes efficient drying in a smaller space and reduces the footprint of the equipment. Through two consecutive dryings, the moisture in the raw materials can be better removed. The dried gases are independently discharged through the exhaust pipe 10 without interfering with each other, thereby improving the drying quality.

[0046] Embodiment 2: like Figures 1 to 10 As shown, on the basis of Example 1, this example further provides a raw material drying device for waterproof material production, adds a deflection component to optimize the drying effect, and the deflection component includes a deflection layer 15 which is sleeved on the outside of the water vapor collection section 9, a deflection layer 2 16 is arranged on the outside of the deflection layer 15, and a deflection layer 3 17 is arranged on the outside of the deflection layer 2 16.

[0047] The adjacent water vapor collection sections 9, baffle layer 1 15, baffle layer 2 16 and baffle layer 3 17 are all 10-15 cm apart. The bottom ends of baffle layer 2 16 and baffle layer 3 17 are fixedly connected to the top of the collecting hopper 13. The bottom end of baffle layer 15 is 10-15 cm apart from the top of the collecting hopper 13. The baffle layer 3 17 is fixedly connected with an exhaust pipe 2 near its top. The exhaust pipe 2 is connected to the inner wall of the baffle layer 3 17. The top of the baffle layer 2 16 is provided with an opening.

[0048] The other structures are the same as those in Example 1, including a feed section 1, a fluidized drying section 2, a feed screw 3, a fluidized screw 4, a feed box 5, a turntable 6, a fixed plate 7, a motor 8, an air flow drying section 11, an air supply ring 1 12, an air supply ring 2 14 and other components.

[0049] Working process: When in use, the raw materials to be dried are introduced into the feed box 5 through the feed pipe, and the motor 8 is started at the same time. The motor 8 drives the feed screw 3 and the fluidizing screw 4 to rotate through the turntable 6. The feed screw 3 and the fluidizing screw 4 push the raw materials upward along the outer walls of the feed section 1 and the fluidizing drying section 2 during rotation.

[0050] High-temperature gas is introduced into the gas supply ring 2 14 through an external gas supply device. The high-temperature gas rises along the inner walls of the feed section 1 and the fluidized drying section 2, flows out from the through holes on the fluidized drying section 2, and enters the outer wall of the fluidized drying section 2 to fluidize and dry the raw materials thereon. The high-temperature gas containing moisture is collected through the water vapor collection section 9.

[0051] The raw materials that have completed fluidized drying enter the airflow drying section 11 driven by the fluidizing screw 4, and dry hot air is introduced into the hollow part of the airflow drying section 11 through the air supply ring 12. The hot air is ejected through the through holes of the airflow drying section 11, so that the raw materials are suspended and move upward under the action of the airflow for secondary drying.

[0052] The raw materials after secondary drying pass through the gaps between the water vapor collection section 9, the baffle layer 1 15, the baffle layer 2 16 and the baffle layer 3 17 in sequence. During this process, the setting of the baffle layer changes the direction of the airflow, slows down the airflow speed, and causes the raw materials to settle into the collecting hopper 13 under the action of gravity and be discharged through the bottom of the collecting hopper 13.

[0053] The gas generated during the drying process is guided into the interior of the baffle layer three 17 when passing through the baffle layer, and is discharged through the exhaust pipe two near its top. An opening is provided at the top of the baffle layer two 16, allowing the gas to smoothly enter the baffle layer three 17, thereby improving the gas discharge efficiency.

[0054] Heat exchange process: The high-temperature gas containing moisture is discharged through the exhaust pipe 10, and heat is exchanged with the manifold 19, transferring heat to the gas in the manifold 19, thereby improving the utilization rate of thermal energy.

[0055] Gas emission and separation: The raw materials after secondary drying settle into the collecting hopper 13 under the action of gravity and are discharged through the bottom of the collecting hopper 13. The gas is discharged through the exhaust pipe 2 on the baffle layer 3 17, avoiding mutual interference between air flows and improving drying efficiency.

[0056] In this embodiment, a multi-stage baffle structure is formed by arranging baffle layer 15, baffle layer 2 16 and baffle layer 3 17 on the outer side of the water vapor collection section 9. The spacing between adjacent baffle layers is 10-15 cm, ensuring that the airflow and raw materials have enough space to separate when passing through the baffle layers. The bottom ends of baffle layer 2 16 and baffle layer 3 17 are fixedly connected to the top of the collecting hopper 13, ensuring the stability of the structure.

[0057] The multi-stage setting of the baffle layer causes the airflow to change direction continuously and slow down its speed gradually when passing through, which effectively improves the separation efficiency of raw material particles and gas, prevents fine particles from being lost with the airflow, and increases the recovery rate of raw materials.

[0058] The setting of the exhaust pipe 2 provides an independent exhaust channel for the gas, avoiding mutual interference between airflows and improving the drying efficiency and stability of the equipment. The opening design at the top of the baffle layer 2 16 ensures the smooth flow of gas inside the baffle layer, further optimizing the gas exhaust process.

[0059] In summary, based on Example 1, this embodiment significantly improves the drying effect and recovery rate of raw materials by adding a baffle component and optimizing the gas exhaust path, and has the advantages of reasonable structure, high efficiency and low energy consumption.

[0060] Embodiment 3: like Figures 1 to 10 As shown, based on Examples 1 and 2, this example further provides a raw material drying device for waterproof material production, which adds an optimized design for heat recovery and energy utilization.

[0061] Specifically, the air inlet pipe 18 is fixedly connected to the baffle layer 3 17 near its bottom end. The baffle layer 1 15 , the baffle layer 2 16 and the baffle layer 3 17 are all hollow structures, and the air inlet pipe 18 is connected to the hollow part of the baffle layer 3 17 .

[0062] A pipe is fixedly connected between the inner wall of the third baffle layer 17 and the top of the second baffle layer 16, connecting the hollow parts of the third baffle layer 17 and the second baffle layer 16; a pipe is also fixedly connected between the bottom end of the second baffle layer 16 and the bottom end of the first baffle layer 15, connecting the hollow parts of the second baffle layer 16 and the first baffle layer 15.

[0063] A manifold 19 is fixedly connected between the top of the baffle layer 15 and the bottom of the air supply ring 2 14 , and the manifold 19 connects the hollow part of the baffle layer 15 with the air supply ring 2 14 .

[0064] The end of the exhaust pipe 10 away from the water vapor collection section 9 passes through the baffle layer 15, the baffle layer 2 16 and the baffle layer 3 17 in sequence, and the penetrating part is wrapped around the outer wall of the manifold 19. The bottom end of the collecting hopper 13 is connected to the external equipment through a pipeline.

[0065] The water vapor collection section 9, the baffle layer 1 15, the baffle layer 2 16 and the baffle layer 3 17 are all connected to the inside of the collecting hopper 13. A feed pipe 20 is fixedly connected to the outer end of the feed box 5. The feed pipe 20 is connected to the inner wall of the feed box 5. The end of the feed pipe 20 away from the feed box 5 passes through the baffle layer 1 15, the baffle layer 2 16 and the baffle layer 3 17 in sequence, and the passing part is connected to the external feeding system. The feed pipe 20 is arranged obliquely upward at the end away from the feed box 5.

[0066] The other structures are the same as those of Examples 1 and 2, including a feed section 1, a fluidized drying section 2, a feed screw 3, a fluidized screw 4, a turntable 6, a fixed plate 7, a motor 8, an airflow drying section 11, an air supply ring 12 and other components.

[0067] Working process: When in use, the raw materials to be dried are introduced into the feed box 5 through the feed pipe 20. The feed pipe 20 is arranged obliquely upward, which helps the material to slide smoothly into the feed box 5 under the action of gravity. At the same time, the motor 8 is started, and the motor 8 drives the feed screw 3 and the fluidizing screw 4 to rotate through the turntable 6, pushing the raw materials to move upward along the outer wall of the feed section 1 and the fluidizing drying section 2.

[0068] High-temperature gas is introduced into the gas supply ring 2 14 through external gas supply equipment. The high-temperature gas rises along the inner walls of the feed section 1 and the fluidized drying section 2, flows out from the through holes on the fluidized drying section 2, enters the outer wall of the fluidized drying section 2, and dries the raw materials thereon. In this process, the raw materials form a fluidized state under the action of the gas, and the gas takes away the moisture in the raw materials.

[0069] The high-temperature gas containing moisture is collected by the water vapor collecting section 9 and discharged through the exhaust pipe 10. The end of the exhaust pipe 10 away from the water vapor collecting section 9 passes through the baffle layer 15, the baffle layer 2 16 and the baffle layer 3 17 in sequence, and the passing part is wound on the outer wall of the manifold 19. During the discharge process, the high-temperature exhaust gas exchanges heat with the gas in the manifold 19, thereby reducing the exhaust temperature.

[0070] The raw materials that have completed fluidized drying enter the airflow drying section 11 driven by the fluidizing screw 4, and dry hot air is introduced into the hollow part of the airflow drying section 11 through the air supply ring 12. The hot air is ejected through the through holes of the airflow drying section 11, so that the raw materials are suspended and move upward under the action of the airflow for secondary drying.

[0071] The raw materials after secondary drying pass through the gaps between the water vapor collection section 9, the baffle layer 1 15, the baffle layer 2 16 and the baffle layer 3 17 in turn. During this process, the raw materials settle into the collecting hopper 13 under the action of gravity, and are discharged from the bottom of the collecting hopper 13 to enter the subsequent processing link.

[0072] At the same time, normal temperature air is introduced into the hollow part of the baffle layer three 17 through the air inlet pipe 18, and the normal temperature air flows through the hollow parts of the baffle layer three 17, the baffle layer two 16 and the baffle layer one 15 in turn. The three are connected by fixedly connected pipes. During the flow, the normal temperature air exchanges heat with the high-temperature exhaust pipe one 10 wound on the outer wall of the manifold 19, and the temperature rises after absorbing heat.

[0073] The air after absorbing heat enters the air supply ring 2 14 through the conduit 19, participates in the drying process, and realizes the recovery and utilization of heat.

[0074] Based on Examples 1 and 2, this embodiment forms an internal circulation heat recovery system by adding an air inlet pipe 18 of the baffle layer 3 17 and the hollow structures of the baffle layer 15 , the baffle layer 2 16 and the baffle layer 3 17 .

[0075] Normal temperature air enters the hollow part of baffle layer three 17 from the air inlet pipe 18, flows through the hollow parts of baffle layer two 16 and baffle layer one 15 in turn, exchanges heat with the high temperature exhaust pipe one 10, absorbs heat and its temperature rises, and then enters the air supply ring two 14 through the manifold 19 to participate in the drying process of the raw materials.

[0076] This design effectively recovers the heat in the exhaust gas, reduces energy consumption, and improves the thermal efficiency of the equipment. At the same time, the penetrating portion of the exhaust pipe 10 is wrapped around the outer wall of the manifold 19, further enhancing the heat exchange effect, lowering the exhaust temperature, and reducing heat waste.

[0077] The feed pipe 20 is arranged obliquely upward, and gravity is used to allow the material to smoothly enter the feed box 5, thereby avoiding material blockage and improving the feeding efficiency.

[0078] Through the above improvements, the drying equipment of this embodiment realizes efficient drying and heat recovery, has the advantages of energy saving and environmental protection, reasonable structure and stable operation, and meets the demand for efficient drying of raw materials in the production of waterproof materials.

[0079] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be regarded as excluding other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A raw material drying device for waterproof material production, characterized in that: The invention comprises a feeding section (1), the top of the feeding section (1) is rotatably connected to a fluidized drying section (2), the outer ends of the feeding section (1) and the fluidized drying section (2) are respectively rotatably connected to a feeding screw (3) and a fluidizing screw (4), the feeding screw (3) and the fluidizing screw (4) are fixedly connected, the fluidized drying section (2) and the fluidizing screw (4) are both conical structures, and the end with a larger diameter of the conical structure is arranged in a direction close to the feeding section (1), and the outer end of the feeding screw (3) is rotatably connected to the feeding section (1). A feed box (5) is connected, a plurality of through holes are formed on the fluidized drying section (2), a turntable (6) is fixedly connected to the bottom end of the feed screw (3), a fixed plate (7) is rotatably connected to the bottom end of the turntable (6), a motor (8) is fixedly connected to the bottom end of the fixed plate (7), a power shaft of the motor (8) passes through the fixed plate (7), and the passing portion is fixedly connected to the bottom end of the turntable (6), a water vapor collection section (9) is fixedly connected to the top end of the feed box (5), and the water vapor collection section (9) The top end of the water vapor collection section (9) is fixedly connected to an exhaust pipe (10); the top end of the water vapor collection section (9) is fixedly connected to an airflow drying section (11); the airflow drying section (11) is a hollow structure, and the hollow portion is connected to the inner wall of the airflow drying section (11) through a plurality of through holes; the structure is a conical structure, and the end of the conical structure with a smaller diameter is arranged toward a direction close to the fluidizing screw (4); the fluidizing drying section (2) and the fluidizing screw (4) extend into the airflow drying section (11); and the airflow drying section ( The bottom end of the fixed plate (7) is connected to an external air supply system through an air supply ring (12), and the air supply ring (12) is connected to the hollow part of the airflow drying section (11). The outer end of the fixed plate (7) is fixedly connected to a collecting hopper (13), and the top of the collecting hopper (13) is fixedly connected to a deflection assembly. The inner wall of the feed section (1) is fixedly connected to an air supply ring (14), and the bottom end of the air supply ring (14) passes through the turntable (6) and the motor (8), and the passing part is connected to the external air supply equipment.

2. The raw material drying equipment for waterproof material production according to claim 1, characterized in that: A conical collecting cover is fixedly connected to the top of the airflow drying section (11), and an end of the conical collecting cover with a smaller diameter is arranged away from the airflow drying section (11).

3. The raw material drying equipment for waterproof material production according to claim 2, characterized in that: The baffle assembly comprises a baffle layer 1 (15) sleeved on the outside of the water vapor collection section (9), a baffle layer 2 (16) is arranged on the outside of the baffle layer 1 (15), and a baffle layer 3 (17) is arranged on the outside of the baffle layer 2 (16).

4. The raw material drying equipment for waterproof material production according to claim 3 is characterized by: The adjacent water vapor collection section (9), baffle layer 1 (15), baffle layer 2 (16), and baffle layer 3 (17) are all 10-15 centimeters apart. The bottom ends of baffle layer 2 (16) and baffle layer 3 (17) are both fixedly connected to the top end of the collecting hopper (13). The bottom end of baffle layer 1 (15) is 10-15 centimeters apart from the top end of the collecting hopper (13).

5. The raw material drying equipment for waterproof material production according to claim 4, characterized in that: The baffle layer 3 (17) is fixedly connected to an exhaust pipe 2 near its top, and the exhaust pipe 2 is connected to the inner wall of the baffle layer 3 (17). The top of the baffle layer 2 (16) is provided with an opening.

6. The raw material drying equipment for waterproof material production according to claim 5, characterized in that: The baffle layer three (17) is fixedly connected to an air inlet pipe (18) near its bottom end; the baffle layer one (15), the baffle layer two (16) and the baffle layer three (17) are all hollow structures; the air inlet pipe (18) is in communication with the hollow portion of the baffle layer three (17).

7. The raw material drying equipment for waterproof material production according to claim 6, characterized in that: A pipe is fixedly connected between the inner wall of the baffle layer three (17) and the top of the baffle layer two (16), and the pipe connects the hollow parts of the baffle layer three (17) and the baffle layer two (16). A pipe is fixedly connected between the bottom end of the baffle layer two (16) and the bottom end of the baffle layer one (15), and the pipe connects the hollow parts of the baffle layer two (16) and the baffle layer one (15).

8. The raw material drying equipment for waterproof material production according to claim 7, characterized in that: A collector pipe (19) is fixedly connected between the top end of the baffle layer 1 (15) and the bottom end of the air supply ring 2 (14), and the collector pipe (19) connects the hollow part of the baffle layer 1 (15) and the air supply ring 2 (14).

9. The raw material drying equipment for waterproof material production according to claim 8, characterized in that: The end of the exhaust pipe 1 (10) away from the water vapor collection section (9) passes through the baffle layer 1 (15), the baffle layer 2 (16) and the baffle layer 3 (17) in sequence, and the passing part is wound around the outer wall of the collecting pipe (19), and the bottom end of the collecting hopper (13) is connected to the external equipment through a pipeline.

10. The raw material drying equipment for waterproof material production according to claim 9, characterized in that: The water vapor collection section (9), the baffle layer 1 (15), the baffle layer 2 (16) and the baffle layer 3 (17) are all connected to the interior of the collecting hopper (13); a feed pipe (20) is fixedly connected to the outer end of the feed box (5); the feed pipe (20) is connected to the inner wall of the feed box (5); the end of the feed pipe (20) away from the feed box (5) passes through the baffle layer 1 (15), the baffle layer 2 (16) and the baffle layer 3 (17) in sequence, and the passing part is connected to the external feeding system; the end of the feed pipe (20) away from the feed box (5) is arranged obliquely upward.

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