Efficient hot air circulation flash drying and crushing integrated equipment

Abstract

The utility model relates to the technical field of flash drying and smashing integrated equipment, and discloses efficient hot air circulation flash drying and smashing integrated equipment which comprises a pulse drying tower, a cyclone drying tower, a separator, a bag filter, an air extractor and a heater. The pulse drying tower, the cyclone drying tower, the separator, the bag filter, the air extractor and the heater are sequentially communicated through pipelines, a dehumidification mechanism is arranged between the heater and the air extractor and comprises an absorption box, a supporting frame, a hydraulic cylinder, a first connecting rod, a placement box and a storage barrel, and a molecular sieve is placed in the storage barrel. According to the efficient hot air circulation flash drying and smashing integrated equipment, a molecular sieve can absorb water vapor in hot air, so that the content of the water vapor in the hot air is reduced, the dried hot air enters a heater through a pipeline, the heater introduces the dried hot air into a flash dryer, the hot air can be effectively circulated, and the drying efficiency is improved. And the energy consumption of the flash dryer is reduced.

Description

Technical Field

[0001] This application relates to the technical field of integrated flash drying and pulverizing equipment, specifically a high-efficiency hot air circulating flash drying and pulverizing integrated equipment. Background Technology

[0002] The integrated flash drying and pulverizing equipment, also known as a flash dryer, is a new type of continuous drying equipment that integrates drying, pulverizing, and screening. It mainly consists of a heater, feeder, mixing and crushing system, classifier, main drying pipe, cyclone separator, bag filter, and fan. Hot air enters tangentially at the bottom of the dryer, forming a powerful rotating airflow under the action of the agitator. Its working principle is as follows: Pasty materials enter the dryer through a screw feeder. Under the strong action of the high-speed rotating agitator, the material is dispersed by impact, friction, and shear stress. Lumpy materials are rapidly pulverized, fully contacting, heated, and dried by the hot air. The dehydrated dry material rises with the hot airflow. The classifying ring retains large particles, while small particles are discharged from the center of the ring and recovered by the cyclone separator and dust collector. Incompletely dried or large pieces are thrown against the wall by centrifugal force and fall back to the bottom to be pulverized and dried again.

[0003] Existing flash dryers typically discharge the hot steam directly during operation, preventing effective recycling of the hot air and increasing energy consumption, which is detrimental to their use.

[0004] Therefore, there is an urgent need for a high-efficiency hot air circulating flash drying and pulverizing integrated equipment to solve the problem of the inability to circulate and utilize hot air in flash dryers. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides an integrated high-efficiency hot air circulating flash drying and pulverizing device, which has the advantage of reducing the energy consumption of flash dryers and solves the problem of the inability to circulate and utilize hot air in flash dryers.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-efficiency hot air circulating flash drying and pulverizing integrated equipment, comprising a pulse drying tower, a cyclone drying tower, a separator, a bag filter, an exhaust fan, and a heater, wherein the pulse drying tower, the cyclone drying tower, the separator, the bag filter, the exhaust fan, and the heater are connected sequentially by pipelines, a dehumidification mechanism is provided between the heater and the exhaust fan, and a stirring mechanism is provided at the bottom of the pulse drying tower;

[0007] The dehumidification mechanism includes an absorption box, a support frame, a hydraulic cylinder, a connecting rod, a placement box, and a storage cylinder. The absorption box is connected to an air extractor and a heater via pipes. The support frame is welded to the outer surface of the absorption box. The hydraulic cylinder is located on the outside of the support frame. One end of the connecting rod is fixedly connected to the output end of the hydraulic cylinder, and the other end of the connecting rod is fixedly connected to the outside of the placement box by bolts. The storage cylinder is placed in a slot inside the placement box, and a molecular sieve is placed inside the storage cylinder.

[0008] Molecular sieves can absorb water vapor in hot gas, thereby reducing the water vapor content in the hot gas. The dried hot gas enters the heater through a pipe, and the heater then passes the dried hot gas into the flash dryer, allowing the hot gas to circulate effectively and reducing the energy consumption of the flash dryer.

[0009] Preferably, the outer surface of the placement box is slidably connected to the plate on the outside of the absorption box.

[0010] Preferably, the outer surface of the placement box and storage cylinder is provided with several sets of evenly distributed small holes.

[0011] Preferably, the inner side of the absorption box is provided with a slot that is compatible with the placement box.

[0012] Preferably, a rubber pad is provided between the absorption box and the placement box.

[0013] Preferably, the stirring mechanism includes a drive motor, a second connecting rod, a fixed frame, a scraper, and a stirring rod. The drive motor is installed at the bottom of the pulse drying tower. One end of the second connecting rod is fixedly connected to the output end of the drive motor. One end of the fixed frame and the stirring rod are welded to the outer surface of the second connecting rod. The other end of the fixed frame is fixedly connected to one end of the scraper by bolts. The bottom of the scraper is slidably connected to the bottom wall of the pulse drying tower.

[0014] Preferably, the outer surface of the connecting rod is rotatably connected to the plate inside the pulse drying tower, and the two sides of the scraper are inclined surfaces.

[0015] In summary, this application includes at least one of the following beneficial effects:

[0016] 1. This high-efficiency hot air circulating flash drying and pulverizing integrated equipment draws hot air through a heater and then into an absorption box. A molecular sieve is placed inside the storage cylinder of the absorption box, which absorbs moisture from the hot air, thus reducing its moisture content. The dried hot air then enters the heater through a pipe, which in turn passes the dried hot air into the flash dryer, allowing for effective circulation of the hot air, reducing the energy consumption of the flash dryer, and making it more convenient to use.

[0017] 2. In this high-efficiency hot air circulating flash drying and pulverizing integrated equipment, when the paste material is introduced into the pulse drying tower, the connecting rod two drives the scraper to rotate through the fixed frame. When the scraper rotates, it stirs and scrapes up the paste material deposited at the bottom of the pulse drying tower, preventing the paste material from settling to the bottom, thus making the paste material drier better and improving the processing efficiency of the flash dryer. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the flash dryer in this application;

[0019] Figure 2 This is a rear view structural diagram of the flash dryer of this application;

[0020] Figure 3 This is a structural diagram of the placement box and storage cylinder of this application;

[0021] Figure 4 This is a structural diagram of the mixing mechanism in this application.

[0022] The components include: 1. Pulse drying tower; 111. Absorption box; 112. Support frame; 113. Hydraulic cylinder; 114. Connecting rod one; 115. Placement box; 116. Storage cylinder; 2. Cyclone drying tower; 211. Drive motor; 212. Connecting rod two; 213. Fixing frame; 214. Scraper; 215. Stirring rod; 3. Separator; 4. Bag filter; 5. Air extractor; 6. Heater. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1-4 A high-efficiency hot air circulating flash drying and pulverizing integrated equipment includes a pulse drying tower 1, a cyclone drying tower 2, a separator 3, a bag filter 4, an exhaust fan 5, and a heater 6. The pulse drying tower 1, cyclone drying tower 2, separator 3, bag filter 4, exhaust fan 5, and heater 6 are connected in sequence through pipelines. A dehumidification mechanism is provided between the heater 6 and the exhaust fan 5. A stirring mechanism is provided at the bottom of the pulse drying tower 1.

[0025] The paste-like material enters the pulse drying tower 1 through the screw feeder for initial drying. The heater 6 introduces heated air into the pulse drying tower 1 to dry the material. The material is further dried in the cyclone drying tower 2. The separator 3 and bag filter 4 separate the dried powder. The blower 5 extracts the hot air.

[0026] Specifically, the dehumidification mechanism includes an absorption box 111, a support frame 112, a hydraulic cylinder 113, a connecting rod 114, a placement box 115, and a storage cylinder 116. The absorption box 111 is connected to the vacuum pump 5 and the heater 6 through a pipe. The support frame 112 is welded to the outer surface of the absorption box 111. The hydraulic cylinder 113 is located on the outside of the support frame 112. One end of the connecting rod 114 is fixedly connected to the output end of the hydraulic cylinder 113, and the other end of the connecting rod 114 is fixedly connected to the outside of the placement box 115 by bolts. The storage cylinder 116 is placed in the slot inside the placement box 115. The inner side of the absorption box 111 has a slot that matches the placement box 115. A rubber pad is provided between the absorption box 111 and the placement box 115. A molecular sieve is placed inside the storage cylinder 116. The outer surface of the placement box 115 is slidably connected to the plate on the outside of the absorption box 111. Several sets of evenly distributed small holes are provided on the outer surfaces of the placement box 115 and the storage cylinder 116.

[0027] Through the above technical solution, when hot gas containing water vapor enters the absorption box 111, the water vapor will be absorbed by the molecular sieve inside the storage cylinder 116, thereby obtaining dry hot gas. The dry hot gas enters the heater 6 through the pipe. The heater 6 then passes the dry hot gas into the flash dryer, allowing the hot gas to circulate effectively, reducing the energy consumption of the flash dryer, and making the flash dryer more convenient to use.

[0028] After the molecular sieve has been used for a period of time, the hydraulic cylinder 113 is activated. The hydraulic cylinder 113 drives the placement box 115 to move through the connecting rod 114. When the placement box 115 moves outward, it drives the storage cylinder 116 to move outward, allowing the staff to easily replace the storage cylinder 116, enabling the molecular sieve to continuously process hot gas and making the flash dryer more convenient to use.

[0029] Specifically, the stirring mechanism includes a drive motor 211, a connecting rod 212, a fixing frame 213, a scraper 214, and a stirring rod 215. The drive motor 211 is installed at the bottom of the pulse drying tower 1. One end of the connecting rod 212 is fixedly connected to the output end of the drive motor 211. One end of the fixing frame 213 and the stirring rod 215 are welded to the outer surface of the connecting rod 212. The other end of the fixing frame 213 is fixedly connected to one end of the scraper 214 by bolts. The bottom of the scraper 214 is slidably connected to the inner bottom wall of the pulse drying tower 1. The outer surface of the connecting rod 212 is rotatably connected to the plate on the inner side of the pulse drying tower 1. The two sides of the scraper 214 are inclined surfaces.

[0030] With the above technical solution, when the paste material is introduced into the pulse drying tower 1, the drive motor 211 is started. The drive motor 211 drives the connecting rod 212 to rotate. The connecting rod 212 drives the scraper 214 to rotate through the fixed frame 213. When the scraper 214 rotates, it stirs and scrapes up the paste material deposited at the bottom of the pulse drying tower 1, so that the paste material will not settle to the bottom, making the paste material dry better and improving the processing efficiency of the flash dryer. When the stirring rod 215 rotates, it stirs the paste material, so that the paste material can be fully dried.

[0031] During use, the molecular sieve can absorb water vapor in the hot gas, thereby reducing the water vapor content in the hot gas. The dried hot gas enters the heater 6 through the pipe, and the heater 6 then passes the dried hot gas into the flash dryer, allowing the hot gas to circulate effectively and reducing the energy consumption of the flash dryer.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency hot air circulating flash drying and pulverizing integrated equipment, comprising a pulse drying tower (1), a cyclone drying tower (2), a separator (3), a bag filter (4), a vacuum pump (5), and a heater (6), characterized in that: The pulse drying tower (1), cyclone drying tower (2), separator (3), bag filter (4), air extractor (5) and heater (6) are connected in sequence through pipelines. A dehumidification mechanism is provided between the heater (6) and the air extractor (5). A stirring mechanism is provided at the bottom of the pulse drying tower (1). The dehumidification mechanism includes an absorption box (111), a support frame (112), a hydraulic cylinder (113), a connecting rod (114), a placement box (115), and a storage cylinder (116). The absorption box (111) is connected to the air extractor (5) and the heater (6) through a pipe. The support frame (112) is welded to the outer surface of the absorption box (111). The hydraulic cylinder (113) is located on the outside of the support frame (112). One end of the connecting rod (114) is fixedly connected to the output end of the hydraulic cylinder (113), and the other end of the connecting rod (114) is fixedly connected to the outside of the placement box (115) by bolts. The storage cylinder (116) is placed in the slot inside the placement box (115), and a molecular sieve is placed inside the storage cylinder (116).

2. The high-efficiency hot air circulation flash drying and pulverizing integrated device according to claim 1, characterized in that: The outer surface of the placement box (115) is slidably connected to the plate on the outside of the absorption box (111).

3. The high-efficiency hot air circulation flash drying and pulverizing integrated device according to claim 1, characterized in that: The outer surfaces of the placement box (115) and the storage cylinder (116) are provided with several sets of evenly distributed small holes.

4. The high-efficiency hot air circulation flash drying and pulverizing integrated device according to claim 1, characterized in that: The absorption box (111) has a slot on its inner side that is compatible with the placement box (115).

5. The high-efficiency hot air circulation flash drying and pulverizing integrated device according to claim 1, characterized in that: A rubber pad is provided between the absorption box (111) and the placement box (115).

6. The high-efficiency hot air circulation flash drying and pulverizing integrated device according to claim 1, characterized in that: The stirring mechanism includes a drive motor (211), a connecting rod (212), a fixing frame (213), a scraper (214), and a stirring rod (215). The drive motor (211) is installed at the bottom of the pulse drying tower (1). One end of the connecting rod (212) is fixedly connected to the output end of the drive motor (211). One end of the fixing frame (213) and the stirring rod (215) are welded to the outer surface of the connecting rod (212). The other end of the fixing frame (213) is fixedly connected to one end of the scraper (214) by bolts. The bottom of the scraper (214) is slidably connected to the inner bottom wall of the pulse drying tower (1).

7. The high-efficiency hot air circulating flash drying and pulverizing integrated equipment according to claim 6, characterized in that: The outer surface of the connecting rod (212) is rotatably connected to the plate on the inner side of the pulse drying tower (1), and the scraper (214) has inclined surfaces on both sides.

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