A dust-free closed-cycle spray dryer

Abstract

The utility model discloses a dust-free closed-cycle spray dryer, comprising: a shell, a uniform drying mechanism, the uniform drying mechanism is arranged on the shell, the uniform drying mechanism comprises a fixed shell, the fixed shell is installed on the top of the shell, a suction pump is installed on the top of the inner wall of the shell, a filter connecting mechanism, the filter connecting mechanism is arranged on the shell, the filter connecting mechanism comprises an exhaust fan, the exhaust fan is installed on the left side of the top of the shell, and two partitions are installed on the inner wall of the fixed shell. The utility model cooperates with the fixed shell, the suction pump, the partition, the suction pipe, the guide pipe, the annular block, the annular groove, the fixed pipe, the atomizing nozzle, the fixed shaft, the guide plate, the hot air blower, the cavity and the air outlet, so that the material can be uniformly atomized and sprayed, so that it can be further uniformly dried, thereby improving the efficiency of material processing.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dryers, in particular to a dust-free closed-cycle spray dryer. Background Art

[0002] Closed cycle spray dryer is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow rate and size of the spray hole of the liquid pump can be adjusted to obtain the required spherical particles of a certain size ratio. Spray dryer is a kind of continuous atmospheric pressure dryer. The liquid material is sprayed into a mist with special equipment, so that it contacts with hot air and is dried. It is used to dry some heat-sensitive liquids, suspensions and viscous liquids, and is also used to dry fuels, intermediates, soap powder and inorganic salts.

[0003] According to the application number: CN202222866250.6, a new anti-blocking and anti-sticking spray dryer includes a drying tower and a feeding mechanism installed on the top of the drying tower. A hot air blower is installed on the side of the drying tower. A discharging mechanism is installed inside the drying tower. The feeding mechanism includes a feed pump fixedly connected to the top of the drying tower, and a feed pipe is installed on the liquid outlet pipe of the feed pump.

[0004] The spray dryer in the above case has low drying efficiency and cannot evenly dry the sprayed material, thus reducing the drying effect. Utility Model Content

[0005] The purpose of the utility model is to provide a dust-free closed-cycle spray dryer to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a dust-free closed-cycle spray dryer, comprising:

[0007] case;

[0008] A uniform drying mechanism, the uniform drying mechanism is arranged on a shell, the uniform drying mechanism comprises a fixed shell, the fixed shell is installed on the top of the shell, a pump is installed on the top of the inner wall of the shell, a fixed pipe connected with the pump is installed at the bottom of the pump, an atomizing nozzle connected with the pump is installed on the surface of the fixed pipe, a fixed shaft is movably connected with the groove at the bottom of the inner wall of the shell through a bearing, a guide plate is installed on the inner wall of the shell and on the surface of the fixed shaft, hot air blowers are installed on both sides of the shell, two cavities are provided inside the shell, and a plurality of air outlets are provided on the opposite sides of the two cavities;

[0009] A filter connection mechanism is arranged on the shell, and the filter connection mechanism includes an exhaust fan, and the exhaust fan is installed on the left side of the top of the shell.

[0010] Preferably, two partitions are installed on the inner wall of the fixed shell, and a suction pipe connected to the pump is installed on the top of the pump, and the top end of the suction pipe passes through the shell and the fixed shell from bottom to top and extends to the inside of the fixed shell.

[0011] Preferably, a material guide pipe is installed on the right partition plate, the bottom end of which passes through the suction pipe and extends into the interior thereof, an annular block is installed on the surface of the material guide pipe, an annular groove is provided on the inner wall of the suction pipe and at a position corresponding to the annular block, and the side of the annular block close to the inner wall of the annular groove passes through the annular groove and extends into the interior thereof to rotate in contact with the inner wall of the annular groove.

[0012] Preferably, a filter screen is provided on the partition plate on the left side, and top blocks are provided on both left and right sides of the bottom of the filter screen.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model cooperates with each other among a fixed shell, a material pump, a partition, a material suction pipe, a material guide pipe, an annular block, an annular groove, a fixed pipe, an atomizing nozzle, a fixed shaft, a guide plate, a hot air blower, a cavity and an air outlet, so that the material can be evenly atomized and sprayed out, and further evenly dried, thereby improving the efficiency of material processing.

[0015] 2. The utility model facilitates the adsorption and filtration of dust generated during processing through the cooperation of the exhaust fan, the filter screen and the top block, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0018] Figure 3 It is a structural cross-sectional view of the front view of the housing and the fixed housing of the utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of middle A.

[0020] In the figure: 1 shell, 2 uniform drying mechanism, 21 fixed shell, 22 extraction pump, 23 partition, 24 suction pipe, 25 guide pipe, 26 annular block, 27 annular groove, 28 fixed pipe, 29 atomizing nozzle, 210 fixed shaft, 211 guide plate, 212 hot air blower, 213 cavity, 214 air outlet, 3 filter connecting mechanism, 31 exhaust fan, 32 filter screen, 33 top block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A dust-free closed-cycle spray dryer comprises: a shell 1, a fixed door is movably connected to the bottom of the front side of the shell 1 through a hinge, and the fixed door is opened to facilitate the removal of the dried material. A transparent observation window is provided on the top of the front side of the shell 1 to facilitate the observation of the situation inside the shell 1.

[0023] The uniform drying mechanism 2 is arranged on the shell 1. The uniform drying mechanism 2 includes a fixed shell 21, which is installed on the top of the shell 1. A pumping pump 22 is fixedly connected to the top of the inner wall of the shell 1. Two partitions 23 are fixedly connected to the inner wall of the fixed shell 21. A suction pipe 24 connected to the top of the pumping pump 22 is fixedly connected. The top of the suction pipe 24 passes through the shell 1 and the fixed shell 21 from bottom to top and extends to the inside of the fixed shell 21. A guide pipe 25 is fixedly connected to the right partition 23. The bottom end of the guide pipe 25 passes through the suction pipe 24 and extends to the inside. A solenoid valve is arranged on the left side of the guide pipe 25. An annular block 26 is fixedly connected to the surface of the guide pipe 25. The inner wall of the suction pipe 24 and the position corresponding to the annular block 26 are fixedly connected to the guide pipe 25. An annular groove 27 is provided in the shell 1, and one side of the annular block 26 close to the inner wall of the annular groove 27 penetrates the annular groove 27 and extends to the inside thereof to rotate in contact with the inner wall of the annular groove 27. The bottom of the suction pump 22 is fixedly connected with a fixed pipe 28 which is interconnected with it, and the surface of the fixed pipe 28 is fixedly connected with an atomizing nozzle 29 which is interconnected with it. A fixed shaft 210 is movably connected with the groove at the bottom of the inner wall of the shell 1 through a bearing, and the top of the fixed shaft 210 is fixedly connected with the bottom end of the fixed pipe 28. A guide plate 211 is fixedly connected on the inner wall of the shell 1 and on the surface of the fixed shaft 210. A hot air blower 212 is fixedly connected to the left and right sides of the shell 1. Two cavities 213 are provided inside the shell 1, and a plurality of air outlets 214 are provided on the opposite sides of the two cavities 213.

[0024] Furthermore, a feeding cover is provided on the top of the fixed shell 21, and an air outlet pipe interconnected with the fixed shell 21 is fixedly connected to the left side of the bottom of the fixed shell 21. The bottom end of the air outlet pipe passes through the shell 1 and extends to the interior. A one-way valve is provided on the air outlet pipe to prevent gas backflow. The top of the hot air blower 212 is fixedly connected to an air duct interconnected with the cavity 213.

[0025] Through the mutual cooperation of the fixed shell 21, the suction pump 22, the partition 23, the suction pipe 24, the guide pipe 25, the annular block 26, the annular groove 27, the fixed pipe 28, the atomizing nozzle 29, the fixed shaft 210, the guide plate 211, the hot air blower 212, the cavity 213 and the air outlet 214, the material can be evenly atomized and sprayed out, and further evenly dried, thereby improving the efficiency of material processing.

[0026] A filter connection mechanism 3 is provided on the shell body 1. The filter connection mechanism 3 includes an exhaust fan 31. The exhaust fan 31 is installed on the left side of the top of the shell body 1. A filter screen 32 is provided on the partition 23 on the left side. Top blocks 33 are provided on the left and right sides of the bottom of the filter screen 32. The top of the top block 33 is in contact with the bottom of the filter screen 32. The side of the filter screen 32 close to the inner wall of the fixed shell 21 is in contact with the inner wall of the fixed shell 21. The side of the filter screen 32 close to the partition 23 is in contact with the partition 23. The top of the exhaust fan 31 is fixedly connected with an air intake pipe interconnected with the exhaust fan 31. The end of the air intake pipe away from the exhaust fan 31 passes through the fixed shell 21 and extends to the inside thereof. The bottom of the exhaust fan 31 is provided with an exhaust pipe interconnected with the shell body 1.

[0027] Furthermore, a mounting plate is provided on the left side of the front of the fixed shell 21, and two fastening bolts threadedly connected to the fixed shell 21 are provided on the front of the mounting plate. Then, the fastening bolts can be loosened to open the mounting plate, and the filter screen 32 can be pulled forward to remove the filter screen 32 from the fixed shell 21, so that the filter screen 32 can be disassembled and cleaned conveniently.

[0028] Furthermore, the control methods of the extraction pump 22, the solenoid valve of the material guide pipe 25, the hot air blower 212 and the exhaust fan 31 are all controlled by the external controller matched therewith, and the control circuit can be realized by simple programming by technicians in this field. It is common knowledge in this field and will not be elaborated here.

[0029] The exhaust fan 31, the filter screen 32 and the top block 33 cooperate with each other, so that the dust generated during processing can be adsorbed and filtered, thereby improving practicality.

[0030] When in use, open the feeding cover and load materials into the fixed shell 21. When processing is required, first open the solenoid valve on the guide pipe 25, and then start the extraction pump 22. The extraction pump 22 passes through the suction pipe 24, the guide pipe 25 and the fixed pipe 28, so that the liquid material is ejected through the atomizing nozzle 29. At the same time, the hot air blower 212 discharges the hot air through the cavity 213 and the air outlet 214, dries the ejected atomized material, and makes it fall on the guide plate 211 for collection after drying. At the same time, start the exhaust fan 31, and the exhaust fan 31 discharges the impurities in the shell 1 into the fixed shell 21, and after filtering through the filter net 32, it is discharged into the interior of the shell 1 through the air outlet pipe.

[0031] In summary: the dust-free closed-cycle spray dryer solves the problems raised in the above-mentioned background technology through the mutual cooperation of the fixed shell 21, the suction pump 22, the partition 23, the suction pipe 24, the guide pipe 25, the annular block 26, the annular groove 27, the fixed pipe 28, the atomizing nozzle 29, the fixed shaft 210, the guide plate 211, the hot air blower 212, the cavity 213 and the air outlet 214.

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

Claims

1. A dust-free closed-cycle spray dryer, characterized in that: include: Housing (1); A uniform drying mechanism (2), the uniform drying mechanism (2) being arranged on a shell (1), the uniform drying mechanism (2) comprising a fixed shell (21), the fixed shell (21) being mounted on the top of the shell (1), a pumping pump (22) being mounted on the top of the inner wall of the shell (1), a fixed pipe (28) being mounted on the bottom of the pumping pump (22) and being in communication with the pumping pump (22), an atomizing nozzle (29) being mounted on the surface of the fixed pipe (28) and being in communication with the pumping pump (22), a fixed shaft (210) being movably connected to the groove at the bottom of the inner wall of the shell (1) via a bearing, a guide plate (211) being mounted on the inner wall of the shell (1) and on the surface of the fixed shaft (210), a hot air blower (212) being mounted on both the left and right sides of the shell (1), two cavities (213) being provided inside the shell (1), a plurality of air outlets (214) being provided on opposite sides of the two cavities (213); A filter connection mechanism (3), wherein the filter connection mechanism (3) is arranged on the housing (1), and the filter connection mechanism (3) comprises an exhaust fan (31), and the exhaust fan (31) is installed on the left side of the top of the housing (1).

2. A dust-free closed-cycle spray dryer according to claim 1, characterized in that: Two partitions (23) are installed on the inner wall of the fixed shell (21), and a suction pipe (24) connected to the pump (22) is installed on the top of the pump (22). The top end of the suction pipe (24) passes through the shell (1) and the fixed shell (21) in sequence from bottom to top and extends to the interior of the fixed shell (21).

3. A dust-free closed-cycle spray dryer according to claim 2, characterized in that: A material guide pipe (25) is installed on the right partition plate (23), the bottom end of the material guide pipe (25) penetrates the suction pipe (24) and extends into the interior thereof, an annular block (26) is installed on the surface of the material guide pipe (25), an annular groove (27) is provided on the inner wall of the suction pipe (24) and at a position corresponding to the annular block (26), and a side of the annular block (26) close to the inner wall of the annular groove (27) penetrates the annular groove (27) and extends into the interior thereof to be in rotational contact with the inner wall of the annular groove (27).

4. A dust-free closed-cycle spray dryer according to claim 3, characterized in that: A filter screen (32) is arranged on the partition plate (23) on the left side, and top blocks (33) are arranged on both left and right sides of the bottom of the filter screen (32).

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