CN217430836U - Closed circulation spray drying equipment - Google Patents

Abstract

The utility model discloses a closed circulation spray drying equipment, including the feed liquid jar, the feed liquid jar is connected with the atomizer through first catheter, the atomizer bottom is connected with drying device, drying device one side is connected with heating device, and drying device is connected with cyclone through first passage, cyclone bottom is connected with the receiving flask, and cyclone one side is connected with the draught fan through first passage, drying device includes the drying chamber and sets up the dry subassembly of enhancement in the drying chamber, the drying chamber top passes through atomizer and first catheter connection, and the drying chamber bottom is connected with cyclone through first passage, it includes the motor to strengthen the dry subassembly, the pivot and rotate the seat, the output and the pivot of motor are connected. The device can increase the heated area of powder, improves drying efficiency, can prevent the heat loss.

Description

Closed circulation spray drying equipment

Technical Field

The utility model relates to a spray drying technical field especially relates to a closed circulation spray drying equipment.

Background

Spray drying systems are generally used to atomize a liquid slurry while hot air drying to form a solute powder, and are generally classified into open spray drying systems and closed spray drying systems.

The closed spray drying system adopts a closed inert gas (usually nitrogen) circulating system, and recycles the tail gas discharged in the drying process after solvent recovery, thereby avoiding dust pollution to the atmosphere and simultaneously recycling the organic solvent on line; the closed spray drying system can avoid safety accidents such as combustion or explosion and the like, and simultaneously widens the application range of the solvent of the material.

When the existing closed spray drying equipment is used for drying liquid, atomized liquid is dried through high-temperature hot air, but some liquid is discharged outside without being dried, and meanwhile, the heat loss speed is high, so that the drying efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a closed circulation spray drying equipment has solved among the prior art liquid drying when have some liquid not dry successfully just by the discharge external world, and the heat runs off fast simultaneously, makes the technical problem of dry efficiency reduction.

The technical scheme of the utility model is realized like this:

the utility model provides a closed circulation spray drying equipment, includes the feed liquid jar, the feed liquid jar is connected with the atomizer through first catheter, the atomizer bottom is connected with drying device, drying device one side is provided with heating device and connects, just drying device is connected with cyclone through first passage, the cyclone bottom is connected with the receiving flask, just cyclone one side is connected with first draught fan through first guide duct.

The drying device comprises a drying chamber and a reinforced drying assembly arranged in the drying chamber, the top of the drying chamber is connected with the first liquid guide pipe through an atomizer, and the bottom of the drying chamber is connected with the cyclone separator through the first material guide pipe.

Strengthen the drying subassembly and include motor, pivot and rotation seat, the output of motor with the pivot is connected, the motor sets up the drying chamber outside, the pivot is kept away from the one end of motor runs through the drying chamber and with rotate the seat and connect, rotate seat one side with the drying chamber inner wall is connected, just the cover is equipped with the thermal-arrest board in the pivot, the thermal-arrest board outside is provided with the ceramic layer.

Preferably, a feeding pump is arranged on the first liquid guide pipe.

Preferably, heating device includes second draught fan, rose box and second air duct, the second draught fan passes through the second air duct with the rose box is connected, the rose box is connected with the heat collector through the third air duct, the heat collector pass through the fourth air duct with the drying chamber is connected.

Preferably, the heat collecting plate is provided with a through hole.

Preferably, a support plate is arranged at the bottom of the first draught fan.

Preferably, an exhaust pipe is arranged on the first induced draft fan.

The utility model has the advantages that: the device comprises a feed liquid tank, a heating device, a rotary seat, a motor, a rotary shaft, a heat collecting plate, a ceramic layer, a cyclone separator, a first guide pipe, a second guide pipe, a rotary seat, a rotary shaft, a rotary seat, a rotary shaft, a rotary guide pipe and a rotary guide pipe, improve drying efficiency and prevent heat loss.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the interior of the drying chamber according to the present invention;

fig. 3 is a schematic structural view of the middle reinforced drying assembly of the present invention.

Reference numerals: 1. a feed liquid tank; 101. a first liquid guide tube; 102. an atomizer; 103. a first material guide pipe; 104. A cyclone separator; 105. a collection bottle; 106. a first air duct; 107. a first induced draft fan; 108. a drying chamber; 109. a motor; 110. a rotating shaft; 111. a rotating seat; 112. a heat collecting plate; 114. a filter box; 115. A second air duct; 116. a heat collector; 117. a through hole; 118. and (4) exhausting the gas.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a technical scheme of closed circulation spray drying equipment:

a closed circulation spray drying device comprises a feed liquid tank 1, the feed liquid tank 1 is connected with an atomizer 102 through a first liquid guide pipe 101, the bottom of the atomizer 102 is connected with a drying device, one side of the drying device is connected with a heating device, the drying device is connected with a cyclone separator 104 through a first material guide pipe 103, the bottom of the cyclone separator 104 is connected with a collecting bottle 105, one side of the cyclone separator 104 is connected with a first induced draft fan 107 through a first air guide pipe 106, the drying device comprises a drying chamber 108 and a reinforced drying component arranged in the drying chamber 108, the top of the drying chamber 108 is connected with the first liquid guide pipe 101 through the atomizer 102, the bottom of the drying chamber 108 is connected with the cyclone separator 104 through the first material guide pipe 103, the reinforced drying component comprises a motor 109, a rotating shaft 110 and a rotating seat 111, the output end of the motor 109 is connected with the rotating shaft 110, the motor 109 is arranged outside the drying chamber 108, one end of the rotating shaft 110, which is far away from the motor 109, penetrates through the drying chamber 108 and is connected with the rotating seat 111, one side of the rotating seat 111 is connected with the inner wall of the drying chamber 108, a heat collecting plate 112 is sleeved on the rotating shaft 110, and a ceramic layer is arranged on the outer side of the heat collecting plate 112.

Firstly, mixed liquid enters the atomizer 102 through the liquid feeding tank 1 through the first liquid guide pipe 101, is atomized through the atomizer 102 and then enters the drying chamber 108, then hot air enters the drying chamber 108 through the heating device, when drying is carried out, the rotating shaft 110 is driven to rotate on the rotating seat 111 through the motor 109, then the rotating shaft 110 drives the heat collecting plate 112 to rotate, the flow velocity of the hot air in the drying chamber 108 is driven to be accelerated through the heat collecting plate 112, so that the contact area of the atomized liquid and the hot air is increased, the drying efficiency is improved, the ceramic layer is arranged on the heat collecting plate 112, heat is absorbed through the ceramic layer, when the atomized liquid enters the drying chamber 108, the heat is released through the ceramic layer, the drying efficiency of the atomized liquid is improved, the energy loss is prevented, then the atomized liquid enters the cyclone separator 104 through the first material guide pipe 103, and dried powder enters the collecting bottle 105 through the cyclone separator 104, the gas is then discharged into a post-treatment device by a first induced draft fan 107.

The first liquid guide pipe 101 is provided with a feeding pump, and liquid mixed in the liquid tank 1 enters the atomizer 102 through the first liquid guide pipe 101 by the feeding pump.

Heating device includes the second draught fan, rose box 114 and second air duct 115, the second draught fan is connected with rose box 114 through second air duct 115, rose box 114 is connected with heat collector 116 through the third air duct, heat collector 116 is connected with drying chamber 108 through the fourth air duct, it gets into rose box 114 through second air duct 115 to drive external gas through the second draught fan, filter through rose box 114, then filterable gas gets into heat collector 116 through the third air duct, make gaseous heating through heat collector 116, get into in the drying chamber 108 through the fourth air duct.

The heat collecting plate 112 is formed with a through hole 117, and the through hole 117 accelerates the flow rate of the hot wind, thereby increasing a contact area and improving drying efficiency.

The bottom of the first induced draft fan 107 is provided with a supporting plate, and the first induced draft fan 107 is supported through the supporting plate.

The first induced draft fan 107 is provided with an exhaust pipe 118, and gas is discharged through the exhaust pipe 118.

The cyclone separator 104 is a device for separating a gas-solid system, and the working principle is as follows: the solid particles with larger inertial centrifugal force are thrown to the wall surface and separated by the rotary motion caused by the tangential introduction of the airflow.

The atomizer 102 is an air compression atomizer: the jet atomization is based on Venturi jet principle, and utilizes compressed air to form high-speed airflow through fine nozzle, the generated negative pressure drives liquid or other fluid to be sprayed onto the obstacle together, and the liquid drops splash to the periphery under high-speed impact to change into mist particles to be sprayed out from the air outlet pipe.

The utility model discloses a theory of operation and use flow: the liquid mixed in the feed liquid tank 1 enters the atomizer 102 through the first liquid guide pipe 101 by the feed pump, is atomized by the atomizer 102 and then enters the drying chamber 108, the outside air is driven by the second draught fan to enter the filter box 114 through the second air guide pipe 115 and is filtered by the filter box 114, the filtered air enters the heat collector 116 through the third air guide pipe, the air is heated by the heat collector 116 and enters the drying chamber 108 through the fourth air guide pipe, when drying is performed, the rotating shaft 110 is driven by the motor 109 to rotate on the rotating base 111, then the rotating shaft 110 drives the heat collecting plate 112 to rotate, the flow rate of hot air in the drying chamber 108 is driven by the heat collecting plate 112 to be accelerated, thereby increasing the contact area between the atomized liquid and the hot air, improving the drying efficiency, the ceramic layer is arranged on the heat collecting plate 112, when the atomized liquid enters the drying chamber 108 by absorbing heat through the ceramic layer, through ceramic layer release heat, improve drying efficiency to atomizing liquid, prevent thermal loss, through-hole 117 makes hot-blast velocity of flow increase to increase area of contact, improve drying efficiency, get into cyclone 104 through first baffle pipe 103, make dry powder get into receiving flask 105 through cyclone 104, then make gas outgoing get into back end treatment device through first draught fan 107. The device can increase the heated area of powder, improves drying efficiency, can prevent that the heat from running off.

The basic principles, main features and advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and only the preferred embodiments of the present invention are described in the above embodiments and the description, and the present invention is not limited by the above embodiments, and the present invention can also have various changes and improvements, which fall within the scope of the claimed invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A closed circulation spray drying equipment, includes feed liquid jar (1), its characterized in that: the feed liquid tank (1) is connected with an atomizer (102) through a first liquid guide pipe (101); the bottom of the atomizer (102) is connected with a drying device; one side of the drying device is connected with the heating device, and the drying device is connected with the cyclone separator (104) through a first material guide pipe (103); the bottom of the cyclone separator (104) is connected with a collecting bottle (105), and one side of the cyclone separator (104) is connected with a first induced draft fan (107) through a first air guide pipe (106);

the drying apparatus comprises a drying chamber (108) and a reinforced drying assembly disposed within the drying chamber (108); the top of the drying chamber (108) is connected with the first liquid guide pipe (101) through an atomizer (102), and the bottom of the drying chamber (108) is connected with the cyclone separator (104) through the first material guide pipe (103);

the reinforced drying component comprises a motor (109), a rotating shaft (110) and a rotating seat (111); the output end of the motor (109) is connected with the rotating shaft (110); the motor (109) is arranged outside the drying chamber (108); one end of the rotating shaft (110) far away from the motor (109) penetrates through the drying chamber (108) and is connected with the rotating seat (111); one side of the rotating seat (111) is connected with the inner wall of the drying chamber (108), and a heat collecting plate (112) is sleeved on the rotating shaft (110); and a ceramic layer is arranged on the outer side of the heat collecting plate (112).

2. A closed cycle spray drying apparatus according to claim 1, wherein: the first liquid guide pipe (101) is provided with a feeding pump.

3. A closed cycle spray drying apparatus according to claim 1, wherein: heating device includes second draught fan, rose box (114) and second air duct (115), the second draught fan passes through second air duct (115) with rose box (114) are connected, rose box (114) are connected with heat collector (116) through the third air duct, heat collector (116) through the fourth air duct with drying chamber (108) are connected.

4. A closed cycle spray drying apparatus according to claim 1, wherein: the heat collecting plate (112) is provided with a through hole (117).

5. A closed cycle spray drying apparatus according to claim 1, wherein: the bottom of the first induced draft fan (107) is provided with a supporting plate.

6. A closed cycle spray drying apparatus according to claim 1, wherein: an exhaust pipe (118) is arranged on the first induced draft fan (107).

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