Spray drying tower convenient to clean

Abstract

The utility model relates to the technical field of spray drying towers, and discloses a spray drying tower convenient to clean, which comprises a drying tower body, the center of the bottom of the drying tower body is fixedly communicated with a discharge pipe, and a cleaning and scraping assembly comprises a rotating shaft rotationally connected in the drying tower body. Hollow pipes are symmetrically and fixedly connected to the outer portion of the rotating shaft at equal intervals in the circumferential direction, limiting plates are movably connected to the interiors of the hollow pipes, cross rods are fixedly connected to one ends of the limiting plates, the tail ends of the cross rods extend to the outer portions of the hollow pipes, and springs are additionally arranged in the hollow pipes; the tail ends of the two sets of transverse rods on the same side are fixedly connected with the same vertical scraping plate, and the bottom end of the vertical scraping plate is fixedly connected with an inclined scraping plate. According to the drying tower, the problem that the cleaning effect on the interior of the drying tower is reduced due to the fact that external dust and impurities are prone to being attached to the cleaning assembly when the cleaning assembly is idle and the cleaning assembly is prone to being stained with materials during cleaning is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray drying towers, in particular to a spray drying tower which is easy to clean. Background Art

[0002] A spray drying tower is a device that can simultaneously dry and granulate, and is commonly used in the fields of biological pesticides, medicine, food microorganisms, etc. Its main function is to atomize various emulsion raw materials into tiny droplets, remove moisture through instantaneous high temperature, and form tiny solid particles, thereby achieving powderization of the raw materials. After the spray drying tower is used, it is easy for residual materials to adhere to its interior, so it needs to be cleaned.

[0003] A Chinese utility model patent with announcement number CN220736202U discloses a spray drying tower that is easy to clean. The device uses a lifting cylinder to drive the cleaning component at the bottom of the U-shaped frame into the interior of the drying tower body, and then uses the forward and reverse motor inside the motor box to drive the disc to rotate. The disc pushes multiple L-shaped plates to expand outward at the same time through a V-shaped rod, so that the cleaning brush plate on the baffle will contact the inner wall of the drying tower body, thereby being able to clean the materials attached to the inner wall of the drying tower. With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] When the device is actually used, since the idle cleaning components are placed outside the drying tower, dust and impurities attached to the cleaning components are easily brought into the drying tower during the cleaning process inside the drying tower, which will cause secondary pollution inside the drying tower. At the same time, materials will also be attached to the cleaning components during the cleaning process. In addition, the device lacks an integrated structure that can remove materials on the cleaning components, which will affect the cleaning effect of the inside of the drying tower. For this reason, we provide a spray drying tower that is easy to clean. Utility Model Content

[0005] In order to solve the problem in the above background technology that the cleaning component is easily attached with external dust and impurities when idle and is easily contaminated with materials during cleaning, which reduces the cleaning effect of the inside of the drying tower, the utility model provides a spray drying tower that is easy to clean.

[0006] The utility model adopts the following technical scheme to achieve: a spray drying tower that is easy to clean, comprising:

[0007] A drying tower body, wherein one side of the top of the drying tower body is fixedly connected to a feed pipe, and the center of the bottom of the drying tower body is fixedly connected to a discharge pipe;

[0008] A scraping assembly, which includes a rotating shaft rotatably connected to the inside of a drying tower body, a motor fixedly connected to the top center of the drying tower body and the rotor end of the motor is coaxially fixedly connected to the rotating shaft, a hollow tube is fixedly connected to the outside of the rotating shaft in an equidistant and circumferentially symmetrical manner, the inside of the hollow tube is movably connected with a limit plate, one end of the limit plate is fixedly connected to a cross bar and the end of the cross bar extends to the outside of the hollow tube, a spring is added to the inside of the hollow tube, the ends of the two groups of cross bars on the same side are fixedly connected to the same vertical scraper, and the bottom end of the vertical scraper is fixedly connected to an inclined scraper.

[0009] As a further improvement of the above scheme, the discharge pipe is movably connected to an annular scraper inside, a telescopic rod is equidistantly and circumferentially fixedly connected the inner wall of the annular scraper and the rotating shaft, the inner wall of the annular scraper is also equidistantly and circumferentially fixedly connected to an L-shaped connecting piece, and a connecting rod is symmetrically hinged between the bottom end of the inclined scraper and the L-shaped connecting piece through a hinge.

[0010] As a further improvement of the above solution, the bottom of the drying tower body is designed as a funnel-shaped structure.

[0011] As a further improvement of the above solution, a solenoid valve is provided on the discharge pipe.

[0012] As a further improvement of the above solution, two ends of the spring are fixedly connected to the limiting plate and the inner wall of the hollow tube respectively.

[0013] As a further improvement of the above solution, the diameter of the annular scraper matches the inner diameter of the discharge pipe.

[0014] As a further improvement of the above solution, the top of the annular scraper is designed to be inclined inwards.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model drives the rotating shaft to rotate through a motor, so that the rotating shaft can drive the vertical scraper and the inclined scraper to rotate. At the same time, the centrifugal force generated during the rotation process is utilized, and under the active cooperation between the limit plate and the hollow tube, the vertical scraper and the inclined scraper can contact the inner wall of the drying tower body, so that the material attached to the inner wall during drying can be scraped off, thereby reducing the amount of material attached to the inside of the drying tower body, making it convenient to clean it later. After the material inside the drying tower body is emptied, the rotating shaft is regularly rotated intermittently by controlling the motor, and under the active cooperation between the limit plate and the hollow tube, the action of the centrifugal force and the elastic action of the spring, the vertical scraper and the inclined scraper can not only clean the inner wall of the drying tower body, but also can regularly hit the inner wall of the drying tower body to generate vibration to shake off the material on the inner wall and the scraper, thereby avoiding affecting the cleaning effect of the drying tower body. At the same time, the cleaning and scraping component is arranged inside the device, which will not cause secondary pollution to the inside of the drying tower body, and has strong practicality.

[0017] 2. In the process of the motor driving the scraping assembly to rotate intermittently regularly, the utility model can drive the annular scraper to rotate and move vertically regularly through the back and forth movement of the inclined scraper, the active cooperation between the annular scraper and the discharge pipe, the telescopic effect of the telescopic rod, the L-shaped connecting piece and the hinged action between the inclined scraper and the connecting rod, so that the residual material attached to the inside of the discharge pipe can be removed, thereby improving the thoroughness of the cleaning of the inside of the drying tower body and further improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the vertical sectional three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the scraping component of the utility model;

[0020] Figure 3 It is a vertical sectional perspective diagram of the hollow tube and crossbar connection structure of the utility model;

[0021] Figure 4 It is a top view of the three-dimensional structure of the annular scraper of the utility model.

[0022] Description of main symbols:

[0023] 1. Drying tower body; 2. Feed pipe; 3. Discharge pipe; 101. Rotating shaft; 102. Hollow pipe; 103. Limiting plate; 104. Cross bar; 105. Spring; 106. Vertical scraper; 107. Inclined scraper; 108. Motor; 201. Annular scraper; 202. Telescopic rod; 203. L-shaped connector; 204. Connecting rod. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Embodiment 1:

[0026] Please combine Figure 1-4 , a spray drying tower that is easy to clean in this embodiment includes:

[0027] A drying tower body 1, a feeding pipe 2 is fixedly connected to one side of the top of the drying tower body 1, a discharging pipe 3 is fixedly connected to the center of the bottom of the drying tower body 1, and a solenoid valve is added to the discharging pipe 3 to facilitate the control of the opening and closing of the discharging pipe 3;

[0028] A scraping assembly includes a rotating shaft 101 rotatably connected to the inside of the drying tower body 1, a motor 108 is fixedly connected to the top center of the drying tower body 1, and the rotor end of the motor 108 is coaxially fixedly connected to the rotating shaft 101, the motor 108 is a servo stepper motor, and its model is 86HSE12N, the outside of the rotating shaft 101 is equidistantly and circumferentially symmetrically fixedly connected to the hollow tube 102, the inside of the hollow tube 102 is movably connected to a limit plate 103, one end of the limit plate 103 is fixedly connected to a cross bar 104, and the end of the cross bar 104 extends to the outside of the hollow tube 102, a spring 105 is added to the inside of the hollow tube 102, and the two ends of the spring 105 are respectively fixedly connected to the limit plate 103 and the inner wall of the hollow tube 102, the ends of the two groups of cross bars 104 on the same side are fixedly connected to the same vertical scraper 106, and the bottom end of the vertical scraper 106 is fixedly connected to an inclined scraper 107.

[0029] The discharge pipe 3 is movably connected to an annular scraper 201 inside, and a telescopic rod 202 is equidistantly and circumferentially fixedly connected between the inner wall of the annular scraper 201 and the rotating shaft 101. The telescopic rod 202 is a prior art device, which is composed of a sleeve and a sleeve rod with one end movably connected to the inside of the sleeve. The inner wall of the annular scraper 201 is also equidistantly and circumferentially fixedly connected to an L-shaped connector 203, and a connecting rod 204 is symmetrically hinged between the bottom end of the inclined scraper 107 and the L-shaped connector 203 through a hinge. The diameter of the annular scraper 201 matches the inner diameter of the discharge pipe 3, which can ensure the thoroughness of removing the material attached to the inner wall of the discharge pipe 3. The top of the annular scraper 201 is designed to be inclined inward, so that when the annular scraper 201 moves vertically upward to scrape the inner wall of the discharge pipe 3, the scraped material can slide down and be discharged smoothly.

[0030] The implementation principle of a spray drying tower that is easy to clean in the embodiment of the present application is as follows: first, when drying materials, the motor 108 is controlled to continuously drive the rotating shaft 101 to rotate, and the rotating shaft 101 can drive the vertical scraper 106 and the inclined scraper 107 to rotate, and the centrifugal force generated during the rotation process and the active cooperation between the limit plate 103 and the hollow tube 102 are used to make the vertical scraper 106 and the inclined scraper 107 contact with the inner wall of the drying tower body 1, so that the material attached to the inner wall during drying can be scraped off, thereby reducing the amount of material attached to the inside of the drying tower body 1, making it convenient to clean it later, and then after the material is dried, the solenoid valve is opened to completely discharge it, during which the motor 108 is controlled to drive the rotating shaft 101 to rotate intermittently regularly, and under the active cooperation between the limit plate 103 and the hollow tube 102, the action of centrifugal force and the elastic action of the spring 105, the vertical scraper 106 and The inclined scraper 107 can not only scrape the inner wall of the drying tower body 1, but also regularly hit the inner wall of the drying tower body 1 to generate vibration to shake off the materials on the inner wall and the scraper, thereby avoiding affecting the cleaning effect of the drying tower body 1. At the same time, the scraping component is arranged inside the device, and will not cause secondary pollution to the inside of the drying tower body 1. At the same time, in the process of the motor 108 driving the scraping component to rotate regularly and intermittently, through the back and forth movement of the inclined scraper 107, and the active cooperation between the annular scraper 201 and the discharge pipe 3, the telescopic effect of the telescopic rod 202, the L-shaped connector 203 and the hinged action between the inclined scraper 107 and the connecting rod 204, the annular scraper 201 can be driven to rotate and move vertically regularly, so that the residual materials attached to the inside of the discharge pipe 3 can be removed, thereby improving the thoroughness of the cleaning of the inside of the drying tower body 1, and finally the scraped materials will be discharged through the discharge pipe 3.

[0031] Embodiment 2:

[0032] Based on Example 1, this embodiment is further improved in that the bottom of the drying tower body 1 is designed as a funnel-shaped structure, which facilitates the rapid discharge of materials and prevents excessive materials from remaining inside the drying tower body 1.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A spray drying tower that is easy to clean, characterized in that: include: A drying tower body (1), wherein a feed pipe (2) is fixedly connected to one side of the top of the drying tower body (1), and a discharge pipe (3) is fixedly connected to the center of the bottom of the drying tower body (1); A scraping assembly, the scraping assembly comprising a rotating shaft (101) rotatably connected to the inside of a drying tower body (1); a motor (108) is fixedly connected to the top center of the drying tower body (1), and the rotor end of the motor (108) is coaxially fixedly connected to the rotating shaft (101); a hollow tube (102) is fixedly connected to the outside of the rotating shaft (101) in an equidistant and circumferentially symmetrical manner; a limit plate (103) is movably connected to the inside of the hollow tube (102); one end of the limit plate (103) is fixedly connected to a cross bar (104), and the end of the cross bar (104) extends to the outside of the hollow tube (102); a spring (105) is added to the inside of the hollow tube (102); the ends of two groups of cross bars (104) on the same side are fixedly connected to the same vertical scraper (106); the bottom end of the vertical scraper (106) is fixedly connected to an inclined scraper (107).

2. A spray drying tower that is easy to clean as claimed in claim 1, characterized in that: The discharge pipe (3) is movably connected to an annular scraper (201) inside, and a telescopic rod (202) is fixedly connected to the inner wall of the annular scraper (201) and the rotating shaft (101) at equal distances in the circumference. The inner wall of the annular scraper (201) is also fixedly connected to an L-shaped connecting piece (203) at equal distances in the circumference. A connecting rod (204) is symmetrically hinged between the bottom end of the inclined scraper (107) and the L-shaped connecting piece (203) via a hinge.

3. A spray drying tower that is easy to clean as claimed in claim 1, characterized in that: The bottom of the drying tower body (1) is designed as a funnel-shaped structure.

4. A spray drying tower that is easy to clean as claimed in claim 1, characterized in that: The discharge pipe (3) is provided with a solenoid valve.

5. A spray drying tower that is easy to clean as claimed in claim 1, characterized in that: The two ends of the spring (105) are respectively fixedly connected to the limiting plate (103) and the inner wall of the hollow tube (102).

6. A spray drying tower that is easy to clean as claimed in claim 2, characterized in that: The diameter of the annular scraper (201) matches the inner diameter of the discharge pipe (3).

7. A spray drying tower that is easy to clean as claimed in claim 2, characterized in that: The top of the annular scraper (201) is designed to be inclined inwards.

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