Fluidized bed drying equipment for processing brewing powder

Abstract

The utility model discloses fluidized bed drying equipment for processing brewing powder, and relates to the technical field of food processing. The fluidized bed comprises a fluidized bed main body and a material arrangement rack, a high-pressure exhaust fan is arranged on one side of the bottom of the fluidized bed main body, a cyclone separator is arranged on one side of the top of the fluidized bed main body, and a plurality of ventilation limiting racks are fixedly clamped in the fluidized bed main body from top to bottom; a rotating rod is clamped to the center of one side of the material arranging frame in a penetrating mode, and rotating scrapers are fixedly clamped to the periphery of the outer side of the rotating rod. By arranging the fluidized bed main body and the material sorting frame, the problems that the fluidized bed drying equipment is difficult to quickly scatter large materials through airflow, the production cost is increased when the materials are scattered through a stirring structure, and the materials separated by the cyclone separator and the directly discharged materials are respectively recycled, so that the production cost is reduced are solved. And the drying degree of the discharged material is difficult to judge.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing, in particular to a fluidized bed drying device used for processing instant powder. Background Art

[0002] Instant powder generally refers to plant instant powder, which is made from grains such as soybeans, peanuts, corn, and wheat. It contains pure plant protein and oil, and provides a variety of nutrients such as VA and VE. It is low in calories, cholesterol-free, and does not contain trans fatty acids. It is nutritionally comprehensive and balanced, providing high-quality protein raw materials for food processing companies. In the process of processing instant powder, fluidized bed drying equipment is usually used to dry the processed powder. Fluidized bed drying is a process in which the bulk material is placed on a perforated plate and gas is transported from its lower part, causing the material particles to move on the gas distribution plate and be suspended in the airflow, producing a mixed bottom layer of material particles and gas, just like liquid boiling. In the fluidized bed dryer, the material particles are fully in contact with the gas in this mixed bottom layer, and heat and moisture transfer between the material and the gas is carried out. It has the characteristics of bulk material being placed on a perforated plate and gas is transported from its lower part, causing the material particles to move on the gas distribution plate and be suspended in the airflow, producing a mixed bottom layer of material particles and gas, just like liquid boiling. In the fluidized bed dryer, the material particles are fully in contact with the gas in this mixed bottom layer, and heat and moisture transfer between the material and the gas is carried out. It is widely used in the chemical, food, ceramic, pharmaceutical, polymer and other industries, but it still has the following disadvantages in actual use:

[0003] The utility model with publication number CN206959457U discloses a fluidized bed drying system, wherein the inlet of an air filter is connected to the atmosphere, the outlet of the air filter is connected to the inlet of a blower, the outlet of the blower is connected to the heating gas inlet of an air heat exchanger, the heating gas outlet of the air heat exchanger is connected to the air inlet of a fluidized bed dryer; the exhaust port of the fluidized bed dryer is connected to the air inlet of a cyclone separator, the air outlet of the cyclone separator is connected to the inlet of an induced draft fan, the outlet of the induced draft fan is connected to the atmosphere, and when the fluidized bed drying system dries the material through the high-temperature airflow, the large pieces of material are usually directly broken up by the collision between the materials, or the material is stirred by a stirring structure. The material is stirred and the large pieces of material are broken up to improve the drying efficiency of the material. However, the former is difficult to quickly break up the material, and the latter will greatly increase the production expenses. At the same time, the fluidized bed drying system usually installs a cyclone separator to process the air discharged from the material to avoid a small amount of material being discharged through the exhaust port to pollute the environment and waste the material. However, the hot air discharged through the exhaust port usually contains more moisture. The humidity of the material separated by the cyclone separator may be high, making it difficult to directly carry out the next step of processing. In addition, the material separated by the cyclone separator and the material dried by the fluidized bed dryer are difficult to be discharged at the same time, which increases the labor intensity of the staff.

[0004] When fluidized bed drying equipment is drying materials, it usually feeds and discharges materials simultaneously. It is difficult to judge the degree of dryness of materials when they are discharged. Especially when the amount of materials is large, a small amount of materials may be discharged without being completely dried, which reduces the quality of the finished product. Utility Model Content

[0005] The utility model aims to provide a fluidized bed drying device for instant powder processing. Through the fluidized bed main body and the material sorting rack, the problem that it is difficult to quickly break up large pieces of material by airflow when the fluidized bed drying device is drying the material is solved, and breaking up the material by a stirring structure will increase production expenses, the material separated by the cyclone separator may have a high humidity, and the separated material and the material directly discharged are recycled separately, which is time-consuming and labor-intensive to operate, and the problem that the dryness of the discharged material is difficult to judge.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a fluidized bed drying device for processing instant powder, comprising a fluidized bed body and a material arrangement frame, wherein a high-pressure exhaust fan is arranged on one side of the bottom of the fluidized bed body, a cyclone separator is arranged on one side of the top of the fluidized bed body, a plurality of ventilation limit frames are fixedly connected from top to bottom in the fluidized bed body, a material arrangement frame is arranged on one side of the fluidized bed body, a first material discharge pipe is welded through one end of the top of the material arrangement frame, a rotating rod is connectedly connected through the center of one side of the material arrangement frame, rotating scrapers are fixedly connectedly connected on all sides of the outer side of the rotating rod, and the rotating scrapers are attached to the inner wall of the material arrangement frame;

[0008] A large amount of air can be drawn into the fluidized bed body by a high-pressure exhaust fan, so that the instant powder can be dried by high-temperature airflow. The instant powder flowing out with the air can be separated by a cyclone separator to avoid pollution to the environment and waste of materials. The instant powder falls into the inner side of the material sorting rack, and the instant powder separated by the cyclone separator can be collected by the material sorting rack, so that qualified instant powder can be directly discharged. A plurality of ventilation limit racks can prevent the rapid discharge of part of the instant powder that has not been dried, and large pieces of instant powder can be cut at the same time to improve the drying efficiency. The structure is simple and the cost is low. The material sorting rack can feed, collect and discharge materials at the same time, and can make the discharged instant powder re-enter the fluidized bed body for drying when it does not meet the drying standard, and the instant powder that meets the drying standard can be discharged to ensure the quality of the finished product.

[0009] Furthermore, a filter is inserted and connected to one end of the outer peripheral surface of the high-pressure exhaust fan, an air intake pipe is inserted and welded to the top of the filter, a heating pipe is inserted and connected to one end of the high-pressure exhaust fan, and the other end of the heating pipe is inserted and connected to the bottom of the fluidized bed body;

[0010] The air entering the fluidized bed body can be filtered through the filter to prevent dust and bacteria in the air from contaminating the mixing powder. The air can be heated through the heating tube to improve the drying efficiency of the mixing powder.

[0011] Furthermore, an exhaust pipe is inserted through the top of the cyclone separator, a material drop pipe is inserted through the bottom of the cyclone separator, and a first connecting pipe is inserted through the top of the outer peripheral surface of the cyclone separator, and the other end of the first connecting pipe is inserted through the top of the fluidized bed body;

[0012] The cyclone separator can separate the air and the preparing powder entering the first connecting pipe, so that the preparing powder in the exhausted air can fall into the material sorting rack through the dropping pipe for collection, thereby preventing a small amount of preparing powder from being directly discharged with the air to pollute the environment and avoid wasting raw materials.

[0013] Furthermore, a porous plate is fixedly connected to the bottom of the fluidized bed body, a guide frame is fixedly connected to the top of the fluidized bed body, a plurality of material passing ports are formed through the top of the ventilation limit frame, a support rod is fixedly connected to each material passing port, and a cutting knife is welded and fixedly connected to the outer peripheral surface of the support rod;

[0014] The air entering the fluidized bed body can be diverted by the porous plate. When the instant powder flows upward with the hot air, it can enter the feeding port and collide with the cutting knife, thereby cutting and crushing large pieces of instant powder, thereby improving the drying efficiency. In addition, multiple ventilation limit racks can prevent the rapid discharge of part of the instant powder that has not been dried.

[0015] Furthermore, a second material discharge pipe is welded through one end of the top of the material sorting rack, the second material discharge pipe is located at the other end of the material sorting rack relative to the first material discharge pipe, and the material discharge pipe is connected through the top of the second material discharge pipe;

[0016] The instant powder separated by the cyclone separator can be received by the second discharge pipe, and the instant powder falls into the material sorting rack for collection. After a certain period of time, the instant powder that meets the drying standard is discharged through the discharge pipe. There is no need to discharge the material separated by the cyclone separator and the material dried in the fluidized bed separately, thereby reducing the labor intensity of the staff.

[0017] Furthermore, a second connecting pipe is welded through the top of the material sorting rack, a partition net is clamped and fixed at the bottom of the second connecting pipe, a slow flow pipe is clamped through the top of the second connecting pipe, the second connecting pipe is located at one end of the first discharge pipe of the material sorting rack, a feed pipe and a discharge pipe are respectively welded through the two ends of the bottom of the material sorting rack, the feed pipe is located at one end of the first discharge pipe of the material sorting rack, one end of the feed pipe is penetrated and clamped at the bottom of the outer peripheral surface of the fluidized bed body, the other end of the feed pipe relative to the material sorting rack is located between the porous plate and the bottom ventilation limit frame, the other end of the first discharge pipe relative to the material sorting rack is penetrated and clamped at the top of the outer peripheral surface of the fluidized bed body, the other end of the first discharge pipe relative to the material sorting rack is located between the guide frame and the top ventilation limit frame;

[0018] When the instant powder is discharged through the first discharge pipe, the slow-flow pipe can slow the flow of air entering the material sorting rack to prevent a large amount of air from being discharged through the material sorting rack. The partition net can prevent a small amount of instant powder from being discharged through the slow-flow pipe. The humidity of the fed instant powder, the separated instant powder and the discharged instant powder can be monitored by the humidity sensor. When the discharged instant powder and the separated instant powder do not reach the specified dryness, the rotating scraper is driven by the rotating motor to rotate, so that the unqualified instant powder can re-enter the feed pipe and re-enter the fluidized bed body for drying. When the discharged instant powder and the separated instant powder reach the specified dryness, the rotating scraper is driven to rotate in the opposite direction, so that the instant powder is discharged through the discharge pipe. The structure is simple, the operation is convenient, and the quality of the finished product is guaranteed.

[0019] Furthermore, a rotating motor is clamped and fixed on one side of the material sorting frame, the rotating rod is clamped on one end of the rotating motor, a humidity sensor is clamped and fixed on the clockwise side of each rotating scraper, a hopper is provided on one side of the material sorting frame, a support frame is clamped and fixed on the bottom of the hopper, a feeding pipe is clamped through the center of the bottom of the hopper, the feeding pipe is clamped through the bottom of one side of the material sorting frame, the feeding pipe is located at one end of the feeding pipe of the material sorting frame, a one-way valve is clamped through one end of the outer peripheral surface of the feeding pipe, a feeding motor is clamped and fixed on the other end of the feeding pipe, a spiral feeding assembly is clamped on one end of the feeding motor, and the spiral feeding assembly is inserted through one end of the feeding pipe;

[0020] The feeding motor can drive the spiral feeding assembly to rotate, so as to convey the mixing powder poured into the hopper, so that the mixing powder enters the material sorting rack and is fed through the feeding pipe, thereby improving the automation degree of the fluidized bed drying equipment.

[0021] The utility model has the following beneficial effects:

[0022] The utility model solves the problem that when a fluidized bed drying system dries materials through high-temperature airflow, the large pieces of materials are usually directly broken up by collision between the materials, or the materials are stirred by a stirring structure to break up the large pieces of materials, thereby improving the drying efficiency of the materials. However, the former is difficult to break up the materials quickly, while the latter greatly increases production expenses. At the same time, a cyclone separator is usually installed in the fluidized bed drying system to process the air discharged from the materials, so as to avoid a small amount of materials being discharged through the exhaust port to pollute the environment and waste the materials. However, the hot air discharged through the exhaust port usually contains more moisture, and the moisture of the materials separated by the cyclone separator may The material separation by the cyclone separator and the material dried by the fluidized bed dryer are difficult to be discharged at the same time, which increases the labor intensity of the staff. The material discharge speed can be slowed down by a plurality of ventilation limit frames to avoid the rapid discharge of part of the instant powder that has not been dried. At the same time, when the material passes through the ventilation limit frame, the cutting knife can cut large pieces of material to improve the drying efficiency. The structure is simple and the cost is low. The material separated by the cyclone separator can fall into the material sorting rack. When the material reaches the drying standard, the material dried by the fluidized bed main body and the material separated by the cyclone separator can be discharged through the discharge pipe, which reduces the labor intensity of the staff.

[0023] The utility model solves the problem that when a fluidized bed drying device dries materials, it usually feeds and discharges materials simultaneously while drying, and it is difficult to judge the dryness of the materials when discharging them. Especially when the amount of materials is large, a small amount of materials may be discharged before being completely dried, thereby reducing the quality of the finished products. The materials dried by the fluidized bed enter the material sorting rack through the first discharge pipe, and the dryness and humidity of the materials are monitored by the humidity sensor in the material sorting rack. When the humidity does not meet the standard, the rotating motor drives the rotating scraper to rotate, so that the discharged materials enter the fluidized bed body again through the feed pipe for drying. When the drying standard is reached, the rotating motor drives the rotating scraper to rotate in the opposite direction, so that the materials are discharged through the discharge pipe, thereby ensuring the quality of the finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural effect diagram of the utility model;

[0025] Figure 2 This is a structural diagram of the fluidized bed body, high-pressure exhaust fan and cyclone separator of the utility model;

[0026] Figure 3 It is a cross-sectional view of the main body of the fluidized bed of the utility model;

[0027] Figure 4 It is a cross-sectional view of the ventilation limit frame of the utility model;

[0028] Figure 5 This is a structural diagram of the material sorting rack of the utility model;

[0029] Figure 6 This is a structural diagram of the hopper and the feed pipe of the utility model;

[0030] Figure 7 It is a cross-sectional view of the material arrangement rack of the utility model.

[0031] Reference numerals:

[0032] 1. Fluidized bed body; 101. High-pressure exhaust fan; 102. Cyclone separator; 103. Filter; 104. Air inlet pipe; 105. Heating pipe; 106. First connecting pipe; 107. Exhaust pipe; 108. Dropping pipe; 109. Perforated plate; 110. Ventilation limit frame; 111. Guide frame; 112. Material port; 113. Support rod; 114. Cutting knife; 2. Material sorting rack; 201. Hopper ; 202, support frame; 203, first feed pipe; 204, feed pipe; 205, discharge pipe; 206, slow flow pipe; 207, second feed pipe; 208, feed pipe; 209, spiral feed assembly; 210, feed motor; 211, one-way valve; 212, rotating motor; 213, rotating rod; 214, rotating scraper; 215, humidity sensor; 216, second connecting pipe; 217, partition net. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] See also Figure 1-7 As shown, the utility model is a fluidized bed drying device for processing instant powder, comprising a fluidized bed body 1 and a material arrangement frame 2, a high-pressure exhaust fan 101 is arranged on one side of the bottom of the fluidized bed body 1, a cyclone separator 102 is arranged on one side of the top of the fluidized bed body 1, a plurality of ventilation limit frames 110 are fixed from top to bottom in the fluidized bed body 1, a material arrangement frame 2 is arranged on one side of the fluidized bed body 1, a first discharge pipe 203 is welded through one end of the top of the material arrangement frame 2, a rotating rod 213 is inserted through the center of one side of the material arrangement frame 2, a rotating scraper 214 is fixed on all sides of the outer side of the rotating rod 213, and the rotating scraper 214 is attached to the inner wall of the material arrangement frame 2;

[0035] A large amount of instant powder is poured into the inner side of the hopper 201, and the instant powder is transported to the material sorting rack 2 through the feeding pipe 208. The instant powder entering the material sorting rack 2 enters the fluidized bed body 1 through the feeding pipe 204 under the action of gravity. The high-pressure exhaust fan 101 draws the air filtered by the filter 103 into the heating pipe 105 to heat the air, and the air is allowed to enter the fluidized bed body 1 to dry the instant powder at high temperature. The instant powder moves upward under the action of the high-temperature airflow and enters the ventilation limit rack 110. The large pieces of instant powder are cut and broken up by the cutting knife 114. When the instant powder moves to the top of multiple ventilation limit racks 110, the dried instant powder passes through the first discharge pipe 204. 03 enters the material sorting rack 2, and the air enters the cyclone separator 102 through the first connecting pipe 106. The small amount of instant powder entering the first connecting pipe 106 with the air flow is separated, and the instant powder falls to the inner side of the material sorting rack 2 through the second discharge pipe 207 under the action of gravity. The dryness and humidity of the instant powder are monitored by the humidity sensor 215. After a certain period of time, when the humidity does not reach the standard, the rotating motor 212 is controlled to drive the rotating scraper 214 to rotate so that the instant powder passes through the feed pipe 204 again into the fluidized bed body 1 for drying. When the standard is reached, the rotating motor 212 is controlled to drive the rotating scraper 214 to rotate in the opposite direction, so that the instant powder is discharged through the discharge pipe 205.

[0036] Among them Figure 1-4 As shown, a filter 103 is inserted through one end of the outer peripheral surface of the high-pressure exhaust fan 101, and an air inlet pipe 104 is inserted through the top of the filter 103 and welded thereto. A heating pipe 105 is inserted through one end of the high-pressure exhaust fan 101 and clamped thereto. The other end of the heating pipe 105 is inserted through the bottom of the fluidized bed body 1 and clamped thereto. An exhaust pipe 107 is inserted through the top of the cyclone separator 102 and clamped thereto. A material drop pipe 108 is inserted through the bottom of the cyclone separator 102 and welded thereto. A first connecting pipe 106 is inserted through the top of the outer peripheral surface of the cyclone separator 102 and clamped thereto. The other end of the first connecting pipe 106 is inserted through the top of the fluidized bed body 1 and clamped thereto.

[0037] A porous plate 109 is fixedly connected to the bottom of the fluidized bed body 1, a guide frame 111 is fixedly connected to the top of the fluidized bed body 1, and a plurality of material passing ports 112 are formed through the top of the ventilation limit frame 110. A support rod 113 is fixedly connected to each material passing port 112, and a cutting knife 114 is welded and fixedly connected to the outer peripheral surface of the support rod 113.

[0038] The high-pressure exhaust fan 101 is in operation, so that the air enters the filter 103 through the air inlet pipe 104 for filtration, and enters the heating pipe 105 for heating. After the hot air enters the fluidized bed body 1, it is diverted by the porous plate 109, so that the air entering the fluidized bed body 1 flows upward evenly. The high-speed flowing hot air drives the mixing powder to move upward, so that the mixing powder enters the material through-hole 112, and the large pieces of mixing powder are cut and crushed by the cutting knife 114. After the mixing powder passes through multiple ventilation limit racks 110, the dry mixing powder is guided by the guide rack 111, so that the mixing powder passes through the first discharge pipe 203 and enters the material sorting rack 2, while a large amount of air containing moisture enters the cyclone separator 102 through the first connecting pipe 106, and the air and a small amount of mixing powder are separated, so that the small amount of mixing powder falls to the material sorting rack 2 under the action of gravity for collection.

[0039] Among them Figure 1 , 5 As shown in , 6, and 7, a second discharge pipe 207 is welded through one end of the top of the material sorting rack 2, and the second discharge pipe 207 is located at the other end of the material sorting rack 2 relative to the first discharge pipe 203. The drop pipe 108 is connected to the top of the second discharge pipe 207 through a second connecting pipe 216, and a partition net 217 is fixed to the bottom of the second connecting pipe 216. A slow-flow pipe 206 is connected to the top of the second connecting pipe 216, and the second connecting pipe 216 is located at one end of the first discharge pipe 203 of the material sorting rack 2. The two ends of the bottom of the material sorting rack 2 are respectively A feed pipe 204 and a discharge pipe 205 are welded through the feed pipe 204, the feed pipe 204 is located at one end of the first discharge pipe 203 of the material sorting frame 2, one end of the feed pipe 204 is connected to the bottom of the outer peripheral surface of the fluidized bed body 1, the other end of the feed pipe 204 relative to the material sorting frame 2 is located between the perforated plate 109 and the bottom ventilation limit frame 110, the other end of the first discharge pipe 203 relative to the material sorting frame 2 is connected to the top of the outer peripheral surface of the fluidized bed body 1, and the other end of the first discharge pipe 203 relative to the material sorting frame 2 is located between the guide frame 111 and the top ventilation limit frame 110;

[0040] A rotating motor 212 is fixedly connected to one side of the material sorting frame 2, a rotating rod 213 is fixedly connected to one end of the rotating motor 212, a humidity sensor 215 is fixedly connected to the clockwise side of each rotating scraper 214, a hopper 201 is arranged on one side of the material sorting frame 2, a supporting frame 202 is fixedly connected to the bottom of the hopper 201, a feeding pipe 208 is connectedly connected through the center of the bottom of the hopper 201, the feeding pipe 208 is connectedly connected to the bottom of one side of the material sorting frame 2, the feeding pipe 208 is located at one end of the feeding pipe 204 of the material sorting frame 2, a one-way valve 211 is connectedly connected through one end of the outer peripheral surface of the feeding pipe 208, a feeding motor 210 is fixedly connected to the other end of the feeding pipe 208, a spiral feeding assembly 209 is connected to one end of the feeding motor 210, and the spiral feeding assembly 209 is connectedly connected to one end of the feeding pipe 208;

[0041] A large amount of instant powder is poured into the inner side of the hopper 201, and the instant powder falls to one end of the feeding pipe 208 under the action of gravity. The feeding motor 210 drives the spiral feeding assembly 209 to rotate, and the instant powder entering the feeding pipe 208 is transported to the material sorting rack 2, and enters the fluidized bed body 1 through the feed pipe 204 under the action of gravity for drying. The instant powder and air enter the material sorting rack 2 through the first discharge pipe 203, and the instant powder is retained in the material sorting rack 2 through the partition net 217, while the air passes through the slow flow The powder entering the material sorting rack 2 through the first feeding pipe 203 is discharged slowly, and the humidity is monitored by the humidity sensor 215. After a certain period of time, when the powder entering the material sorting rack 2 through the first feeding pipe 203 does not reach the dryness standard, and the powder entering the material sorting rack 2 through the second feeding pipe 207 reaches the dryness standard, the rotating motor 212 drives the rotating scraper 214 to rotate, so that the powder entering the material sorting rack 2 through the second feeding pipe 207 is discharged through the discharge pipe 205, and then drives the rotating scraper 214 to rotate in the opposite direction. The rotating scraper 214 is controlled to rotate so that the instant powder entering the material sorting rack 2 through the first discharge pipe 203 is fed again through the feed pipe 204. When the instant powder entering the material sorting rack 2 through the first discharge pipe 203 reaches the dry standard, and the instant powder entering the material sorting rack 2 through the second discharge pipe 207 does not reach the dry standard, the feed pipe 204 is closed and the rotating scraper 214 is controlled to rotate so that the instant powder entering the material sorting rack 2 through the first discharge pipe 203 is discharged through the discharge pipe 205, and then the feed pipe 204 is opened to allow the instant powder entering the material sorting rack 2 through the second discharge pipe 207 to discharge. The instant powder entering the material sorting rack 2 is dried again through the feed pipe 204. When the instant powder entering the material sorting rack 2 through the first discharge pipe 203 and the second discharge pipe 207 reaches the drying standard, the rotating scraper 214 rotates to make all the instant powder be discharged through the discharge pipe 205. When the instant powder entering the material sorting rack 2 through the first discharge pipe 203 and the second discharge pipe 207 does not reach the drying standard, the rotating scraper 214 rotates in the opposite direction to make all the instant powder enter the fluidized bed body 1 again through the feed pipe 204 for drying.

[0042] The specific working principle of the utility model is as follows: a large amount of instant powder is poured into the inner side of the hopper 201, and the instant powder falls to one end of the feeding pipe 208 under the action of gravity, and the spiral feeding assembly 209 is driven by the feeding motor 210 to rotate, so as to transport the instant powder entering the feeding pipe 208, so that the instant powder enters the material sorting rack 2, and enters the fluidized bed body 1 through the feeding pipe 204 under the action of gravity, and the high-pressure exhaust fan 101 is operated to make the air pass through the air inlet pipe 104 and enter the filter 103 for filtration, and enter the heating pipe 105 for heating, and the hot air enters the fluidized bed body 1 and is diverted through the porous plate 109, so that the air entering the fluidized bed body 1 flows upward evenly, and the high-speed flowing hot air drives the instant powder to move upward, so that the instant powder enters the feeding port 112, and the large pieces of instant powder are cut and crushed by the cutting knife 114, and after the instant powder passes through multiple ventilation limit racks 110, the dry instant powder passes through the guide The rack 111 guides the flow so that the instant powder enters the material sorting rack 2 through the first discharge pipe 203, and the instant powder is retained in the material sorting rack 2 through the partition net 217, while the air is slow-flowed and discharged through the slow-flow pipe 206, and a large amount of air containing moisture enters the cyclone separator 102 through the first connecting pipe 106, and the air and a small amount of instant powder are separated, so that a small amount of instant powder falls into the material sorting rack 2 through the discharge pipe 108 and the second discharge pipe 207 under the action of gravity and is collected, and the hot air containing moisture is discharged through the exhaust pipe 107, and the dryness and humidity of the instant powder entering the material sorting rack 2 is monitored by the humidity sensor 215. After a certain period of time, according to the dryness of the instant powder at different positions, the rotating motor 212 is controlled to drive the rotating rod 213 and the rotating scraper 214 to rotate in the forward and reverse directions, so that the qualified instant powder is discharged through the discharge pipe 205, and the unqualified instant powder is again dried by entering the fluidized bed body 1 through the feed pipe 204.

[0043] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A fluidized bed drying device for processing instant powder, comprising a fluidized bed body (1) and a material arrangement rack (2), characterized in that: A high-pressure exhaust fan (101) is arranged on one side of the bottom of the fluidized bed body (1), a cyclone separator (102) is arranged on one side of the top of the fluidized bed body (1), a plurality of ventilation limit frames (110) are clamped and fixed from top to bottom in the fluidized bed body (1), a material sorting frame (2) is arranged on one side of the fluidized bed body (1), a first material discharge pipe (203) is welded through one end of the top of the material sorting frame (2), a rotating rod (213) is clamped through the center of one side of the material sorting frame (2), and rotating scrapers (214) are clamped and fixed on all four sides of the outer side of the rotating rod (213), and the rotating scrapers (214) are attached to the inner wall of the material sorting frame (2).

2. The fluidized bed drying equipment for preparing instant powder according to claim 1, characterized in that: A filter (103) is inserted through and clamped on one end of the outer peripheral surface of the high-pressure exhaust fan (101), an air intake pipe (104) is inserted through and welded on the top of the filter (103), a heating pipe (105) is inserted through and clamped on one end of the high-pressure exhaust fan (101), and the other end of the heating pipe (105) is inserted through and clamped on the bottom of the fluidized bed body (1).

3. The fluidized bed drying equipment for preparing instant powder according to claim 1, characterized in that: An exhaust pipe (107) is inserted through the top of the cyclone separator (102) and is clamped thereon; a material discharge pipe (108) is inserted through the bottom of the cyclone separator (102) and is welded thereon; a first connecting pipe (106) is inserted through the top of the outer peripheral surface of the cyclone separator (102) and is clamped thereon; the other end of the first connecting pipe (106) is inserted through the top of the fluidized bed body (1) and is clamped thereon.

4. The fluidized bed drying equipment for preparing instant powder according to claim 1, characterized in that: A porous plate (109) is fixedly fastened to the bottom of the fluidized bed body (1), a flow guide frame (111) is fixedly fastened to the top of the fluidized bed body (1), a plurality of material passage openings (112) are formed through the top of the ventilation limit frame (110), a support rod (113) is fixedly fastened to the inside of each material passage opening (112), and a cutting knife (114) is welded and fixedly fastened to the outer peripheral surface of the support rod (113).

5. The fluidized bed drying equipment for preparing instant powder according to claim 3, characterized in that: A second material discharge pipe (207) is welded through one end of the top of the material sorting rack (2), the second material discharge pipe (207) is located at the other end of the material sorting rack (2) relative to the first material discharge pipe (203), and the material discharge pipe (108) is inserted through the top of the second material discharge pipe (207).

6. The fluidized bed drying equipment for preparing instant powder according to claim 4, characterized in that: A second connecting pipe (216) is welded through the top of the material sorting rack (2), a partition net (217) is clamped and fixed at the bottom of the second connecting pipe (216), a slow flow pipe (206) is clamped through the top of the second connecting pipe (216), the second connecting pipe (216) is located at one end of the first discharge pipe (203) of the material sorting rack (2), and a feed pipe (204) and a discharge pipe (205) are respectively welded through the two ends of the bottom of the material sorting rack (2), the feed pipe (204) is located at the first discharge pipe (203) of the material sorting rack (2). The first material discharge pipe (203) is connected to one end of the fluidized bed body (1), one end of the feed pipe (204) is connected to the bottom of the outer peripheral surface of the fluidized bed body (1), and the other end of the feed pipe (204) is located between the porous plate (109) and the ventilation limit frame (110) at the bottom relative to the material sorting frame (2). The other end of the first material discharge pipe (203) is connected to the top of the outer peripheral surface of the fluidized bed body (1), and the other end of the first material discharge pipe (203) is located between the flow guide frame (111) and the ventilation limit frame (110) at the top relative to the material sorting frame (2).

7. The fluidized bed drying equipment for preparing instant powder according to claim 6, characterized in that: A rotating motor (212) is fixedly connected to one side of the material sorting frame (2), the rotating rod (213) is fixedly connected to one end of the rotating motor (212), and a humidity sensor (215) is fixedly connected to the clockwise side of each rotating scraper (214). A hopper (201) is provided on one side of the material sorting frame (2), a supporting frame (202) is fixedly connected to the bottom of the hopper (201), and a conveying pipe (208) is inserted through the center of the bottom of the hopper (201). The conveying pipe (208) is inserted through and clamped on the bottom of one side of the material sorting rack (2); the material conveying pipe (208) is located at one end of the feed pipe (204) of the material sorting rack (2); a one-way valve (211) is inserted through and clamped on one end of the outer peripheral surface of the material conveying pipe (208); a material conveying motor (210) is clamped and fixed on the other end of the material conveying pipe (208); one end of the material conveying motor (210) is clamped and clamped with a spiral material conveying assembly (209); the spiral material conveying assembly (209) is inserted through and clamped on one end of the material conveying pipe (208).

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