A spray dryer

Abstract

The invention discloses a spray dryer, and relates to the technical field of spray drying. A heating pipe is fixedly connected to the side of the machine body, a heating system is fixedly connected to the bottom of the heating pipe, and a cyclone separator is fixedly connected to the side of the machine body. The invention provides a feeding component, places an external liquid barrel in a feeding shell, and contacts the bottom of the feeding pipe through the liquid. A liquid feeding pump is turned on to feed the liquid to a feeding port, and a contact mechanism is pulled to slide upward on a connecting rod by the suction force generated by the liquid feeding pump. When the liquid feeding is stopped, the contact mechanism moves in the inner cavity of the feeding shell through the reset stretching action of a first spring, so as to avoid the excess liquid from adhering to the inner wall of the feeding pipe when the liquid feeding is stopped.

Description

Technical Field

[0001] The invention relates to the technical field of spray drying, in particular to a spray drying machine. Background Art

[0002] Spray dryer is a kind of continuous atmospheric pressure dryer. Liquid materials are sprayed into mist by special equipment, so that they are dried by contact with hot air. It is used to dry liquids, suspensions and viscous liquids, such as milk, eggs, juice and some medicines. It is also used to dry fuels, intermediates, soap powder and inorganic salts. There are many heat-sensitive active substances in foods, medicines, biological products and other materials that need to be spray dried, which can be inactivated even at temperatures above 65°C.

[0003] When the existing device feeds the liquid for a long time, the liquid will adhere to the inner wall of the feed pipe. If it is not cleaned for a long time, the liquid will dry on the inner wall of the feed pipe, thereby deteriorating and interfering with the subsequent drying work of the liquid. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention solves the technical problems by adopting the following technical solution: a spray dryer according to the present invention comprises: A machine body, a heating pipe is fixedly connected to the side of the machine body, a heating system is fixedly connected to the bottom of the heating pipe, a cyclone separator is fixedly connected to the side of the machine body, a collecting component is fixedly connected to the side of the cyclone separator, a feed inlet is opened on the top of the machine body, a molding component is fixedly connected to the inner wall of the machine body, a connecting pipe is fixedly connected to the bottom of the molding component, and a centrifugal atomizer is fixedly connected to the bottom of the feed inlet; A feeding component, which is used to feed the liquid feed, wherein the side of the feeding component is fixedly connected to the top of the machine body, and the end of the connecting pipe away from the forming component is fixedly connected to the cyclone separator; The feeding component includes a feeding shell, a feeding pipe is fixedly connected to the top of the feeding shell, a side of the feeding pipe away from the feeding shell is fixedly connected to a liquid delivery pump, a side of the feeding pipe is fixedly connected to a fixing rod, the bottom of the fixing rod is fixedly connected to the top of the machine body, the inner wall of the feeding pipe is fixedly connected to a lower baffle, the top of the lower baffle is fixedly connected to a connecting rod, an end of the connecting rod away from the lower baffle is fixedly connected to an upper baffle, the side of the upper baffle is fixedly connected to the inner wall of the feeding pipe, a contact mechanism is slidably connected to the side of the connecting rod, a first spring is sleeved on the connecting rod, The bottom of the first spring is fixedly connected to the lower baffle, and one end of the first spring away from the lower baffle is fixedly connected to the contact plate; by placing the external liquid barrel in the feed shell, the liquid contacts the bottom of the feed pipe, and by turning on the liquid delivery pump, the liquid is delivered to the feed port, and the suction force generated by the liquid delivery pump pulls the contact mechanism to slide upward on the connecting rod. When the liquid delivery is stopped, the contact mechanism moves in the inner cavity of the feed shell through the reset stretching action of the first spring, thereby avoiding excess liquid from adhering to the inner wall of the feed pipe when the liquid delivery is stopped.

[0005] Preferably, the contact mechanism includes a contact plate, the inner side of the contact plate is slidably connected to the side of the connecting rod, the side of the contact plate is evenly provided with a clearance groove, one side of the contact plate is fixedly connected to a scraper, the side of the scraper is evenly provided with square grooves, the side of the contact plate away from the scraper is fixedly connected to a fixed shaft, and the side of the fixed shaft is rotatably connected to a cleaning roller; when the liquid delivery pump stops delivering the liquid, the second spring pulls the contact plate to move in the inner cavity of the feed pipe through the stretching and resetting action of the first spring, so that when the contact plate is reset, the inner wall of the feed pipe can be cleaned by the scraper. The cleaning roller is made of rubber, and when the contact plate is reset, the cleaning roller is first contacted and wiped with the inner wall of the feed pipe, thereby wiping and moving the residual liquid on the inner wall of the feed pipe, and then the scraper is contacted and scraped with the inner wall of the feed pipe, thereby avoiding residual liquid on the inner wall of the feed pipe.

[0006] Preferably, the molding component includes a molding shell, the bottom of the molding shell is fixedly connected to one side of the connecting pipe, the side of the molding shell is fixedly connected to the inner wall of the body, the bottom of the molding shell is fixedly connected to a limiting frame, the top of the limiting frame is rotatably connected to a rotating shaft, the side of the rotating shaft is fixedly connected to an inclined plate, the number of the inclined plates is four, and the four inclined plates are evenly arranged with the rotating shaft as the center, the side of the rotating shaft is fixedly connected to an arc rod, the side of the arc rod is fixedly connected to a guide rod, the side of the guide rod away from the arc rod is fixedly connected to a guide plate, the side of the guide plate away from the guide rod is fixedly connected to a straight plate, and the side of the guide plate away from the straight plate is fixedly connected to a curved plate; the feed liquid is driven by the feed liquid delivery pump and enters the centrifugal atomizer through the feed inlet, and the feed liquid is rotated by the centrifugal atomizer, so that the feed liquid is rotated into extremely fine mist-like liquid droplets, so that it can be dried into a finished product in a very short time in co-current contact with hot air, and the dried and molded feed liquid continues to fall In the inner wall of the molding shell, when the dried and formed material liquid continues to fall and contacts and collides with the inclined plate, the inclined plate drives the rotating shaft to rotate in the inner cavity of the molding shell, and at the same time, the cyclone separator works. The suction generated when the cyclone separator is working makes the dried and formed material liquid enter the connecting pipe. At the same time, the suction generated when the cyclone separator is working accelerates the speed of the rotating shaft driven by the inclined plate, so that when the rotating shaft rotates in the inner cavity of the molding shell, the rotating shaft drives the arc rod to rotate, so that the guide plate rotates in the inner cavity of the molding shell through the guide rod, so that the bent plate and the straight plate can clean and scratch the inner wall of the molding shell. At the same time, the material of the bent plate is rubber material, so as to avoid the bent plate from damaging the inner wall of the molding shell when it is scratching and cleaning the inner wall of the molding shell, thereby avoiding the accumulation of the dried material liquid in the inner wall of the molding shell during discharge, thereby causing the dried material liquid to accumulate on the inner wall of the molding shell.

[0007] Preferably, the collecting component includes a collecting shell, the top of the collecting shell is fixedly connected with a discharge pipe, the other end of the discharge pipe is fixedly connected to the cyclone separator, the inner wall of the collecting shell is slidably connected with a collecting cylinder, the inner wall of the discharge pipe is fixedly connected with a bracket, the bottom of the bracket is rotatably connected with a rotating shaft, both sides of the rotating shaft are slidably connected with a dispersion mechanism, and the bottom of the rotating shaft is fixedly connected with a bent rod; when the dried and formed material liquid is driven by the cyclone separator to enter the discharge pipe through the connecting pipe, and at the same time, the dried material liquid continues to pass through the discharge pipe and enters the collecting cylinder, when the dried and formed material liquid contacts with the bent rod, the bent rod impacts with the dried and formed material liquid, so that the bent rod drives the rotating shaft to rotate in the inner cavity of the collecting cylinder, and at the same time, when the bent rod contacts and rotates with the dried and formed material liquid, the dried and formed material liquid is prevented from agglomerating into a mass when discharging.

[0008] Preferably, the dispersion mechanism includes a sliding groove, the sliding groove is opened on the side of the rotating shaft, the inner wall of the sliding groove is fixedly connected with a telescopic rod, one end of the telescopic rod away from the sliding groove is fixedly connected with a connecting plate, the side of the connecting plate is slidably connected to the inner wall of the sliding groove, and the one end of the connecting plate away from the telescopic rod is fixedly connected to the dispersion plate, and the side of the dispersion plate is evenly opened with an arc groove, and the telescopic rod is sleeved with a second spring, one end of the second spring away from the sliding groove is fixedly connected to the dispersion plate, and the other end of the second spring is fixedly connected to the inner wall of the sliding groove; when the cyclone separation drives the dried and formed liquid to enter the discharging barrel, at the same time, the wind force of the cyclone separator is used to enable the rotating shaft to rotate in the inner cavity of the collecting barrel, and when the rotating shaft rotates, the connecting plate is disengaged from the sliding groove, so that the connecting plate drives the dispersion plate to move, so that the dried and formed liquid can fully contact with the dispersion plate when discharging, thereby avoiding the fast discharge speed of the dried and formed liquid, and the inability to fully disperse the dried and formed liquid when the discharge amount is large.

[0009] The beneficial effects of the present invention are as follows: 1. The present invention arranges a feeding component, places an external liquid barrel in a feeding shell, contacts the bottom of a feeding pipe through the liquid, and turns on a liquid delivery pump to deliver the liquid to a feeding port. At the same time, the suction force generated by the liquid delivery pump pulls the contact mechanism to slide upward on the connecting rod. When the delivery of the liquid is stopped, the contact mechanism moves in the inner cavity of the feeding shell through the reset stretching action of the first spring, thereby preventing excess liquid from adhering to the inner wall of the feeding pipe when the delivery of the liquid is stopped.

[0010] 2. The present invention provides a contact mechanism. When the liquid conveying pump stops conveying the liquid, the first spring is stretched and reset, so that the second spring pulls the contact plate to move in the inner cavity of the feed pipe. When the contact plate is reset, the scraper can be used to clean and scratch the inner wall of the feed pipe, thereby scraping off the residual liquid on the inner wall of the feed pipe, thereby avoiding residual liquid on the inner wall of the feed pipe. At the same time, the contact plate continues to move, so that the cleaning roller contacts and rotates with the inner wall of the feed pipe, so that the cleaning roller can clean and wipe the residual liquid on the inner wall of the feed pipe. The cleaning roller is made of rubber. When the contact plate is reset, the cleaning roller is first contacted and wiped with the inner wall of the feed pipe, thereby wiping and moving the residual liquid on the inner wall of the feed pipe. Subsequently, the scraper contacts and scratches with the inner wall of the feed pipe, thereby avoiding residual liquid on the inner wall of the feed pipe.

[0011] 3. The present invention sets a collecting component. When the dried and formed liquid is driven by the cyclone separator through the connecting pipe and enters the discharge pipe, and at the same time, the dried liquid continues to pass through the discharge pipe and enters the collecting barrel. When the dried and formed liquid comes into contact with the bent rod, the bent rod impacts the dried and formed liquid, so that the bent rod drives the rotating shaft to rotate in the inner cavity of the collecting barrel. At the same time, when the bent rod comes into contact and rotates with the dried and formed liquid, the dried and formed liquid is prevented from agglomerating into a mass when being discharged.

[0012] 4. The present invention sets a molding component. When the dried and formed material liquid continues to fall and contacts and collides with the inclined plate, the inclined plate drives the rotating shaft to rotate in the inner cavity of the molding shell, and at the same time, the cyclone separator works. The suction generated when the cyclone separator works makes the dried and formed material liquid enter the connecting pipe. At the same time, the suction generated when the cyclone separator works accelerates the speed at which the inclined plate drives the rotating shaft to rotate. When the rotating shaft rotates in the inner cavity of the molding shell, the rotating shaft drives the arc rod to rotate, so that the guide plate rotates in the inner cavity of the molding shell through the guide rod, so that the bent plate and the straight plate can clean and scratch the inner wall of the molding shell. At the same time, the material of the bent plate is rubber material, so as to avoid the bent plate from damaging the inner wall of the molding shell when it is scratching and cleaning the inner wall of the molding shell, thereby avoiding the accumulation of the dried material liquid in the inner wall of the molding shell when discharging, thereby causing the dried material liquid to accumulate on the inner wall of the molding shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the spray dryer of the present invention; Figure 2 is an axonometric view of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 It is a structural schematic diagram of the feeding component of the present invention; Figure 5 It is a structural schematic diagram of the contact mechanism of the present invention; Figure 6 It is a schematic structural diagram of the molding component of the present invention; Figure 7 The present invention Figure 6 The structural diagram at B in the middle; Figure 8 It is a schematic diagram of the structure of the collecting component of the present invention; Fig. 9 The present invention Figure 8 The structural diagram at A in the middle; In the figure: 1, machine body; 2, heating system; 3, heating pipe; 4, feeding component; 41, feeding shell; 42, feeding pipe; 43, liquid delivery pump; 44, fixing rod; 45, lower baffle; 46, upper baffle; 47, connecting rod; 48, first spring; 49, contact mechanism; 491, contact plate; 492, yielding groove; 493, scraper; 494, square groove; 495, fixing shaft; 496, cleaning roller; 5, collecting component; 51, collecting shell; 52, collecting cylinder; 53, discharging pipe; 5 4. Bracket; 55. Rotating shaft; 56. Dispersing mechanism; 561. Sliding groove; 562. Telescopic rod; 563. Connecting plate; 564. Dispersing plate; 565. Circular arc groove; 566. Second spring; 57. Bending rod; 6. Feed inlet; 7. Cyclone separator; 8. Forming component; 81. Forming shell; 82. Limiting frame; 83. Rotating shaft; 84. Inclined plate; 85. Circular arc rod; 86. Guide rod; 87. Guide plate; 88. Straight plate; 89. Bending plate; 9. Centrifugal atomizer; 10. Connecting pipe. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0015] Example 1, using Figure 1-Figure 7 A spray dryer according to one embodiment of the present invention is described as follows. like Figure 1-Figure 7 A spray dryer of the present invention comprises: A machine body 1, a heating pipe 3 is fixedly connected to the side of the machine body 1, a heating system 2 is fixedly connected to the bottom of the heating pipe 3, a cyclone separator 7 is fixedly connected to the side of the machine body 1, a collecting component 5 is fixedly connected to the side of the cyclone separator 7, a feed inlet 6 is opened on the top of the machine body 1, a molding component 8 is fixedly connected to the inner wall of the machine body 1, a connecting pipe 10 is fixedly connected to the bottom of the molding component 8, and a centrifugal atomizer 9 is fixedly connected to the bottom of the feed inlet 6; A feeding component 4 is used to feed the liquid feed, the side of the feeding component 4 is fixedly connected to the top of the body 1, and one end of the connecting pipe 10 away from the forming component 8 is fixedly connected to the cyclone separator 7; The feed component 4 includes a feed shell 41, a feed pipe 42 is fixedly connected to the top of the feed shell 41, a feed liquid delivery pump 43 is fixedly connected to the side of the feed pipe 42 away from the feed shell 41, a fixed rod 44 is fixedly connected to the side of the feed pipe 42, the bottom of the fixed rod 44 is fixedly connected to the top of the machine body 1, a lower baffle 45 is fixedly connected to the inner wall of the feed pipe 42, a connecting rod 47 is fixedly connected to the top of the lower baffle 45, an end of the connecting rod 47 away from the lower baffle 45 is fixedly connected to an upper baffle 46, the side of the upper baffle 46 is fixedly connected to the inner wall of the feed pipe 42, a contact mechanism 49 is slidably connected to the side of the connecting rod 47, a first spring 48 is sleeved on the connecting rod 47, and the first spring The bottom of 48 is fixedly connected to the lower baffle 45, and the end of the first spring 48 away from the lower baffle 45 is fixedly connected to the contact plate 491; by placing the external liquid barrel in the feed shell 41, the liquid contacts the bottom of the feed pipe 42, and by opening the liquid delivery pump 43, the liquid is delivered to the feed port 6, and the suction force generated by the liquid delivery pump 43 pulls the contact mechanism 49 to slide upward on the connecting rod 47. When the liquid delivery is stopped, the contact mechanism 49 moves in the inner cavity of the feed shell 41 through the reset stretching action of the first spring 48, thereby avoiding the adhesion of excess liquid to the inner wall of the feed pipe 42 when the liquid delivery is stopped.

[0016] The contact mechanism 49 includes a contact plate 491, the inner side of which is slidably connected to the side of the connecting rod 47, the side of the contact plate 491 is evenly provided with a clearance groove 492, one side of the contact plate 491 is fixedly connected with a scraper 493, the side of the scraper 493 is evenly provided with a square groove 494, the side of the contact plate 491 away from the scraper 493 is fixedly connected with a fixed shaft 495, and the side of the fixed shaft 495 is rotatably connected with a cleaning roller 496; when the liquid delivery pump 43 stops delivering the liquid, the first spring 48 is stretched and reset, so that the second spring 566 pulls the contact plate 491 to move in the inner cavity of the feed pipe 42, so that when the contact plate 491 is reset, the scraper 493 can be used to clean the inner wall of the feed pipe 42 The cleaning roller 496 is made of rubber. When the contact plate 491 is reset, the cleaning roller 496 is first contacted and wiped with the inner wall of the feed pipe 42, thereby wiping and moving the residual liquid on the inner wall of the feed pipe 42, and then the scraper 493 is contacted and scratched with the inner wall of the feed pipe 42, thereby avoiding the residual liquid on the inner wall of the feed pipe 42.

[0017] The molding component 8 includes a molding shell 81, the bottom of the molding shell 81 is fixedly connected to one side of the connecting pipe 10, the side of the molding shell 81 is fixedly connected to the inner wall of the body 1, the bottom of the molding shell 81 is fixedly connected to a limit frame 82, the top of the limit frame 82 is rotatably connected to a rotating shaft 83, the side of the rotating shaft 83 is fixedly connected to an inclined plate 84, the number of the inclined plates 84 is four, and the four inclined plates 84 are evenly arranged with the rotating shaft 83 as the center, the side of the rotating shaft 83 is fixedly connected to an arc rod 85, the side of the arc rod 85 is fixedly connected to a guide rod 86, and the guide rod 86 is fixedly connected to the guide rod 86. A guide plate 87 is fixedly connected to the side of the guide rod 86 away from the arc rod 85, a straight plate 88 is fixedly connected to the side of the guide plate 87 away from the guide rod 86, and a curved plate 89 is fixedly connected to the side of the guide plate 87 away from the straight plate 88; the liquid feed is driven by the liquid feed delivery pump 43 and enters the centrifugal atomizer 9 through the feed inlet 6, and the liquid feed is rotated by the centrifugal atomizer 9, thereby rotating the liquid feed into extremely fine mist-like liquid beads, so that it can be dried into a finished product in a very short time by co-current contact with the hot air, and the dried and formed liquid feed continues to fall on the inner wall of the forming shell 81 When the dried and formed material liquid continues to fall and contacts and collides with the inclined plate 84, the inclined plate 84 drives the rotating shaft 83 to rotate in the inner cavity of the forming shell 81. At the same time, the cyclone separator 7 works, and the suction force generated by the cyclone separator 7 when working makes the dried and formed material liquid enter the connecting pipe 10. At the same time, the suction force generated by the cyclone separator 7 when working accelerates the speed of the rotating shaft 83 driven by the inclined plate 84, so that when the rotating shaft 83 rotates in the inner cavity of the forming shell 81, the rotating shaft 83 drives the arc rod 8 5 is rotated, so that the guide plate 87 rotates in the inner cavity of the molding shell 81 through the guide rod 86, so that the curved plate 89 and the straight plate 88 can clean and scrape the inner wall of the molding shell 81. At the same time, the curved plate 89 is made of rubber material, so as to avoid the curved plate 89 from damaging the inner wall of the molding shell 81 when cleaning the inner wall of the molding shell 81, thereby preventing the dried liquid from accumulating in the inner wall of the molding shell 81 when discharging, thereby causing the dried liquid to accumulate on the inner wall of the molding shell 81.

[0018] Embodiment 2, use Figure 8-Figure 9 A spray dryer of the present invention is described as follows: like Figure 8-Figure 9 Shown, a spray dryer of the present invention, based on the first embodiment; The collecting component 5 includes a collecting shell 51, a discharge pipe 53 is fixedly connected to the top of the collecting shell 51, the other end of the discharge pipe 53 is fixedly connected to the cyclone separator 7, a collecting barrel 52 is slidably connected to the inner wall of the collecting shell 51, a bracket 54 is fixedly connected to the inner wall of the discharge pipe 53, a rotating shaft 55 is rotatably connected to the bottom of the bracket 54, both sides of the rotating shaft 55 are slidably connected to the dispersion mechanism 56, and a bent rod 57 is fixedly connected to the bottom of the rotating shaft 55; when the dried and formed liquid is driven by the cyclone separator 7 to enter the discharge pipe 53 through the connecting pipe 10, and at the same time, the dried liquid continues to pass through the discharge pipe 53 and enters the collecting barrel 52, when the dried and formed liquid contacts the bent rod 57, the bent rod 57 impacts the dried and formed liquid, so that the bent rod 57 drives the rotating shaft 55 to rotate in the inner cavity of the collecting barrel 52, and at the same time, when the bent rod 57 contacts and rotates with the dried and formed liquid, the dried and formed liquid is prevented from agglomerating when discharging.

[0019] The dispersion mechanism 56 includes a sliding groove 561, which is provided on the side of the rotating shaft 55. A telescopic rod 562 is fixedly connected to the inner wall of the sliding groove 561. The end of the telescopic rod 562 away from the sliding groove 561 is fixedly connected to a connecting plate 563. The side of the connecting plate 563 is slidably connected to the inner wall of the sliding groove 561. The end of the connecting plate 563 away from the telescopic rod 562 is fixedly connected to a dispersion plate 564. The side of the dispersion plate 564 is evenly provided with arc grooves 565. A second spring 566 is sleeved on the telescopic rod 562. The end of the second spring 566 away from the sliding groove 561 is fixedly connected to the dispersion plate 564. The other end is fixedly connected to the inner wall of the sliding groove 561; when the cyclone separation drives the dried and formed liquid to enter the discharge barrel, the wind force of the cyclone separator 7 is used to enable the rotating shaft 55 to rotate in the inner cavity of the collecting barrel 52. When the rotating shaft 55 rotates, the connecting plate 563 is disengaged from the sliding groove 561, so that the connecting plate 563 drives the dispersion plate 564 to move, so that the dried and formed liquid can fully contact with the dispersion plate 564 when discharging, thereby avoiding the fast discharge speed of the dried and formed liquid and the inability to fully disperse the dried and formed liquid when the discharge volume is large.

[0020] The specific workflow is as follows: During operation, the liquid to be dried and granulated is placed on the feeding component 4, and the feeding component drives the liquid to pass through the feeding port 6 to the centrifugal atomizer 9, so that the centrifugal atomizer 9 rotates the liquid into extremely fine mist-like liquid beads. At the same time, the heating system 2 is turned on, and the heating system 2 heats the inner cavity of the machine body 1. The hot air can be dried into a finished product in a very short time by co-current contact. At the same time, the dried liquid continues to slide into the connecting pipe 10 through the forming component 8, and the dried liquid is sent to the collecting component 5 through the cyclone separator 7. At the same time, the waste gas generated during processing can be discharged through the top of the cyclone separator 7; By placing the external liquid barrel in the feed shell 41, the liquid contacts the bottom of the feed pipe 42, and the liquid delivery pump 43 is turned on to deliver the liquid to the feed port 6. At the same time, the suction force generated by the liquid delivery pump 43 pulls the contact mechanism 49 to slide upward on the connecting rod 47. When the delivery of the liquid is stopped, the contact mechanism 49 moves in the inner cavity of the feed shell 41 through the reset stretching action of the first spring 48, thereby preventing excess liquid from adhering to the inner wall of the feed pipe 42 when the delivery of the liquid is stopped. When the liquid delivery pump 43 stops delivering the liquid, the first spring 48 is stretched and reset, so that the second spring 566 pulls the contact plate 491 to move in the inner cavity of the feed pipe 42, so that when the contact plate 491 is reset, the scraper 493 can clean and scrape the inner wall of the feed pipe 42, so as to scrape off the residual liquid on the inner wall of the feed pipe 42, thereby avoiding the residual liquid on the inner wall of the feed pipe 42. At the same time, the contact plate 491 continues to move, so that the cleaning roller 493 can be cleaned and scraped. 96 contacts and rotates with the inner wall of the feed pipe 42, so that the cleaning roller 496 can clean and wipe the residual liquid on the inner wall of the feed pipe 42. The cleaning roller 496 is made of rubber. When the contact plate 491 is reset, the cleaning roller 496 first contacts and wipes the inner wall of the feed pipe 42, so as to wipe and move the residual liquid on the inner wall of the feed pipe 42. Subsequently, the scraper 493 contacts and scrapes the inner wall of the feed pipe 42, so as to avoid the residual liquid on the inner wall of the feed pipe 42. The liquid feed is driven by the liquid feed delivery pump 43 and enters the centrifugal atomizer 9 through the feed inlet 6. The liquid feed is rotated by the centrifugal atomizer 9, thereby rotating the liquid feed into extremely fine mist-like liquid beads, which can be dried into a finished product in a very short time by co-flow contact with the hot air. The dried and formed liquid feed continues to fall on the inner wall of the molding shell 81. When the dried and formed liquid feed continues to fall and contacts and collides with the inclined plate 84, the inclined plate 84 drives the rotating shaft 83 to rotate in the inner cavity of the molding shell 81. At the same time, the cyclone separator 7 works, and the suction force generated by the cyclone separator 7 when it works makes the dried and formed liquid feed enter the connecting pipe 10. At the same time, the suction force generated by the cyclone separator 7 when it works The speed at which the inclined plate 84 drives the rotating shaft 83 to rotate is accelerated, so that when the rotating shaft 83 rotates in the inner cavity of the forming shell 81, the rotating shaft 83 drives the arc rod 85 to rotate, so that the guide plate 87 rotates in the inner cavity of the forming shell 81 through the guide rod 86, so that the curved plate 89 and the straight plate 88 can clean and scrape the inner wall of the forming shell 81. At the same time, the curved plate 89 is made of rubber material, so as to avoid the curved plate 89 from damaging the inner wall of the forming shell 81 when it is scraping and cleaning the inner wall of the forming shell 81, thereby avoiding the accumulation of the dried liquid in the inner wall of the forming shell 81 when discharging, thereby causing the dried liquid to accumulate on the inner wall of the forming shell 81; When the dried and formed liquid is driven by the cyclone separator 7 through the connecting pipe 10 to enter the discharge pipe 53, and at the same time, the dried liquid continues to pass through the discharge pipe 53 to enter the collecting barrel 52, when the dried and formed liquid contacts with the bent rod 57, the bent rod 57 impacts with the dried and formed liquid, so that the bent rod 57 drives the rotating shaft 55 to rotate in the inner cavity of the collecting barrel 52, and at the same time, when the bent rod 57 contacts and rotates with the dried and formed liquid, the dried and formed liquid is prevented from agglomerating when being discharged; When the cyclone separation drives the dried and formed liquid material into the discharge barrel, the wind force of the cyclone separator 7 enables the rotating shaft 55 to rotate in the inner cavity of the collecting barrel 52. When the rotating shaft 55 rotates, the connecting plate 563 disengages from the sliding groove 561, so that the connecting plate 563 drives the dispersion plate 564 to move, so that the dried and formed liquid material can fully contact with the dispersion plate 564 when discharging, thereby avoiding the fast discharge speed of the dried and formed liquid material, and the inability to fully disperse the dried and formed liquid material when the discharge amount is large.

[0021] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A spray dryer, characterized in that: include: A machine body (1), a heating tube (3) is fixedly connected to the side of the machine body (1), a heating system (2) is fixedly connected to the bottom of the heating tube (3), a cyclone separator (7) is fixedly connected to the side of the machine body (1), a collecting component (5) is fixedly connected to the side of the cyclone separator (7), a feed inlet (6) is provided on the top of the machine body (1), a molding component (8) is fixedly connected to the inner wall of the machine body (1), a connecting tube (10) is fixedly connected to the bottom of the molding component (8), and a centrifugal atomizer (9) is fixedly connected to the bottom of the feed inlet (6); A feeding component (4), the feeding component (4) being used to feed the liquid feed, the side surface of the feeding component (4) being fixedly connected to the top of the machine body (1), and the end of the connecting pipe (10) away from the forming component (8) being fixedly connected to the cyclone separator (7); The feed component (4) comprises a feed shell (41), the top of the feed shell (41) is fixedly connected to a feed pipe (42), a side of the feed pipe (42) away from the feed shell (41) is fixedly connected to a liquid delivery pump (43), a side of the feed pipe (42) is fixedly connected to a fixing rod (44), an inner wall of the feed pipe (42) is fixedly connected to a lower baffle (45), a top of the lower baffle (45) is fixedly connected to a connecting rod (47), an end of the connecting rod (47) away from the lower baffle (45) is fixedly connected to an upper baffle (46), a side of the connecting rod (47) is slidably connected to a contact mechanism (49), and a first spring (48) is sleeved on the connecting rod (47).

2. A spray dryer according to claim 1, characterized in that: The bottom of the fixing rod (44) is fixedly connected to the top of the machine body (1), the side of the upper baffle (46) is fixedly connected to the inner wall of the feed pipe (42), and the bottom of the first spring (48) is fixedly connected to the lower baffle (45).

3. A spray dryer according to claim 1, characterized in that: The contact mechanism (49) comprises a contact plate (491), a side surface of the contact plate (491) being evenly provided with clearance grooves (492), one side of the contact plate (491) being fixedly connected to a scraper (493), a side surface of the scraper (493) being evenly provided with square grooves (494), a side of the contact plate (491) away from the scraper (493) being fixedly connected to a fixed shaft (495), and a side surface of the fixed shaft (495) being rotatably connected to a cleaning roller (496).

4. A spray dryer according to claim 3, characterized in that: The inner side of the contact plate (491) is slidably connected to the side of the connecting rod (47), and one end of the first spring (48) away from the lower baffle plate (45) is fixedly connected to the contact plate (491).

5. A spray dryer according to claim 1, characterized in that: The collecting component (5) comprises a collecting shell (51), the top of the collecting shell (51) is fixedly connected to a discharge pipe (53), the other end of the discharge pipe (53) is fixedly connected to a cyclone separator (7), the inner wall of the collecting shell (51) is slidably connected to a collecting barrel (52), the inner wall of the discharge pipe (53) is fixedly connected to a bracket (54), the bottom of the bracket (54) is rotatably connected to a rotating shaft (55), both sides of the rotating shaft (55) are slidably connected to a dispersion mechanism (56), and the bottom of the rotating shaft (55) is fixedly connected to a bent rod (57).

6. A spray dryer according to claim 5, characterized in that: The dispersion mechanism (56) comprises a sliding groove (561), the inner wall of the sliding groove (561) is fixedly connected to a telescopic rod (562), one end of the telescopic rod (562) away from the sliding groove (561) is fixedly connected to a connecting plate (563), one end of the connecting plate (563) away from the telescopic rod (562) is fixedly connected to a dispersion plate (564), the side surface of the dispersion plate (564) is evenly provided with arc grooves (565), and a second spring (566) is sleeved on the telescopic rod (562).

7. A spray dryer according to claim 6, characterized in that: The sliding groove (561) is formed on a side surface of the rotating shaft (55); the side surface of the connecting plate (563) is slidably connected to the inner wall of the sliding groove (561); one end of the second spring (566) away from the sliding groove (561) is fixedly connected to the dispersion plate (564); and the other end of the second spring (566) is fixedly connected to the inner wall of the sliding groove (561).

8. A spray dryer according to claim 1, characterized in that: The molding component (8) comprises a molding shell (81), the bottom of the molding shell (81) is fixedly connected to a limiting frame (82), the top of the limiting frame (82) is rotatably connected to a rotating shaft (83), the side of the rotating shaft (83) is fixedly connected to an inclined plate (84), the side of the rotating shaft (83) is fixedly connected to an arc rod (85), the side of the arc rod (85) is fixedly connected to a guide rod (86), the side of the guide rod (86) away from the arc rod (85) is fixedly connected to a guide plate (87), the side of the guide plate (87) away from the guide rod (86) is fixedly connected to a straight plate (88), and the side of the guide plate (87) away from the straight plate (88) is fixedly connected to a bent plate (89).

9. A spray dryer according to claim 8, characterized in that: The side surface of the molded shell (81) is fixedly connected to the inner wall of the machine body (1), the bottom of the molded shell (81) is fixedly connected to one side of the connecting pipe (10), the number of the inclined plates (84) is four, and the four inclined plates (84) are evenly arranged with the rotating shaft (83) as the center.

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