High-tower granulator

Abstract

The utility model relates to the technical field of production and processing of compound fertilizers, and discloses a high-tower granulator which comprises a shell, and a spray head is rotationally arranged at the bottom of the shell; the scraping assembly is rotationally arranged in the shell, the scraping assembly comprises a scraping plate, a wall scraping frame and a stirring paddle, the wall scraping frame is fixedly arranged on the curved surface of the stirring paddle, the wall scraping frame is rotationally arranged in the shell, and the scraping plate is fixedly arranged on the bottom surface of the shell; the heating structure comprises a heating pipe frame and a steam heating coil pipe, the heating pipe frame is fixedly arranged in the wall scraping frame, the steam heating coil pipe is fixedly arranged in the shell, the heating pipe frame is arranged in the stirring paddle, slurry is synchronously heated by utilizing high-speed rotation of the stirring paddle, and the slurry is uniformly heated; the slurry is heated comprehensively and uniformly in cooperation with heat of the steam heating pipe, the sprayed slurry is cooled in cooperation with the cooling water cavity formed in the spray head, heat dissipation is guaranteed, and therefore the good granulation effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of production and processing of compound fertilizers, and specifically relates to a high-tower granulator. Background Art

[0002] The high tower granulator is a granulating equipment suitable for the fields of pharmaceuticals, chemicals, food, fertilizers, etc. Its main function is to convert loose powdered raw materials into granular materials with uniform specifications and stable quality.

[0003] The prior art discloses a high-tower granulator (CN209128339U), which includes a mixing tank, a first motor fixed to the top of the mixing tank by bolts, a screw rod fixed to the shaft of the first motor after passing through the top of the mixing tank, a limit plate fixed to the bottom of the screw rod by bolts, a nut sleeved on the screw rod, the nut is welded and fixed to one end of multiple connecting rods, and the other end of each connecting rod is welded and fixed to a scraper; an exhaust fan is fixed to the top of the mixing tank; an outer shell is also provided on the outer periphery of the mixing tank, and a steam heating coil is sandwiched between the mixing tank and the outer shell; a nozzle for spraying fertilizer slurry is provided at the lower part of the mixing tank.

[0004] After searching, it was found that the existing technology uses a screw and a scraper to scrape off the material attached to the inner wall of the mixing tank during use. Then, the exposure of the screw will cause part of the slurry to adhere to the screw thread, affecting use, thereby affecting the scraping effect of the scraper; furthermore, the heating of the slurry only relies on the steam heating pipe between the mixing tank and the outer shell, which will result in incomplete heating, and the heat cannot be dissipated, resulting in poor granulation effect.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above-mentioned technical problems of incomplete heating and poor scraping effect, the basic concept of the technical solution adopted by the utility model is:

[0007] A high tower granulator, comprising

[0008] The shell has a nozzle rotatably arranged on the bottom of the shell;

[0009] A scraping assembly is rotatably disposed in the housing, comprising a scraper, a scraping frame, and a stirring paddle. The scraper frame is fixedly disposed on the curved surface of the stirring paddle, the scraping frame is rotatably disposed in the housing, and the scraper is fixedly disposed on the bottom surface of the housing;

[0010] The heating structure includes a heating pipe rack and a steam heating coil. The heating pipe rack is fixedly arranged in the scraping frame, and the steam heating coil is fixedly arranged in the shell.

[0011] As a preferred embodiment of the present invention, a mixing tank is provided inside the shell, a heating chamber is provided between the mixing tank and the shell, and a steam heating coil for heating is provided in the heating chamber.

[0012] As a preferred embodiment of the present invention, a steam inlet pipe is provided above the heating chamber, and a steam outlet pipe is provided below the heating chamber. Both the steam inlet pipe and the steam outlet pipe are communicated with the outer shell and the heating chamber.

[0013] As a preferred embodiment of the present invention, a ring groove is provided on the bottom curved surface of the shell, a fixing ring is fixedly provided on the top surface of the nozzle, the inner side of the fixing ring corresponds to the shape of the ring groove, and the fixing ring slides around the ring groove.

[0014] As a preferred embodiment of the present invention, two scrapers are symmetrically fixed to the bottom surface of the shell, and the scrapers correspond to the shape of the inner side of the nozzle, and the scrapers slide around on the inner wall surface of the nozzle.

[0015] As a preferred embodiment of the present invention, the same cooling water chamber is opened inside the nozzle and the fixed ring, a water inlet pipe is fixedly provided on the top surface of the fixed ring, the water inlet pipe is communicated with the cooling water chamber, and a water outlet pipe is fixedly provided on the bottom of the nozzle, the water outlet pipe is communicated with the cooling water chamber.

[0016] As a preferred embodiment of the present invention, a high-speed motor is fixedly mounted on the top surface of the outer shell, the output end of the high-speed motor is connected to the top surface of the stirring paddle, the scraping frame is a cross-shaped structure composed of two U-shaped square frames, and a heating tube rack similar in shape to the stirring paddle is provided inside the stirring paddle, and the bottom surface of the stirring paddle is fixedly connected to the inner bottom surface of the nozzle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up a scraping component, the stirring paddle stirs the slurry in the shell, and the scraping rack scrapes the slurry on the inner wall of the shell. At the same time, the stirring paddle drives the nozzle to rotate at high speed, and the nozzle scrapes the inner wall around the scraper, avoiding the use of a screw rod and improving the scraping effect.

[0019] 2. By setting a heating tube rack in the stirring paddle, the high-speed rotation of the stirring paddle is used to heat the slurry synchronously. The heat from the steam heating tube is used to heat the slurry comprehensively and evenly. The cooling water chamber set in the nozzle is used to cool the sprayed slurry to ensure heat dissipation, thereby ensuring a good granulation effect.

[0020] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached figure:

[0022] Figure 1 It is an overall schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the housing of the utility model;

[0024] Figure 3 This is a schematic diagram of the scraping assembly and nozzle of the utility model;

[0025] Figure 4 It is a cross-sectional schematic diagram of the utility model;

[0026] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of point A in the middle.

[0027] In the figure: 10, outer shell; 11, nozzle; 12, steam inlet pipe; 13, steam outlet pipe; 14, ring groove; 15, scraper; 16, water outlet pipe; 17, fixing ring; 18, water inlet pipe; 19, scraper frame; 20, stirring paddle; 21, high-speed motor; 22, cooling water chamber; 23, heating pipe rack; 24, heating chamber; 25, steam heating coil. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0029] A high tower granulator, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes an outer shell 10, and a nozzle 11 is rotatably provided at the bottom of the outer shell 10; a scraping assembly, which is rotatably provided in the outer shell 10, and the scraping assembly includes a scraper 15, a scraping frame 19 and a stirring paddle 20, the scraping frame 19 is fixedly provided on the curved surface of the stirring paddle 20, the scraping frame 19 is rotatably provided in the outer shell 10, and the scraper 15 is fixedly provided on the bottom surface of the outer shell 10; a heating structure, the heating structure includes a heating pipe rack 23 and a steam heating coil 25, the heating pipe rack 23 is fixedly provided in the scraping frame 19, and the steam heating coil 25 is fixedly provided in the outer shell 10.

[0030] Specifically, the device is provided with a scraping component, the stirring paddle 20 stirs the slurry in the outer shell 10, and the scraping rack 19 scrapes the slurry on the inner wall surface of the outer shell. At the same time, the stirring paddle 20 drives the nozzle 11 to rotate at high speed, and the nozzle 11 scrapes the inner wall surface around the scraper 15, avoiding the use of a screw rod and improving the scraping effect. By arranging a heating pipe rack 23 in the stirring paddle 20, the high-speed rotation of the stirring paddle 20 is used to heat the slurry synchronously, and the heat of the steam heating pipe 25 is used to heat the slurry comprehensively and evenly, and the cooling water chamber 22 provided in the nozzle 11 is used to cool the sprayed slurry to ensure heat dissipation, thereby ensuring a good granulation effect.

[0031] like Figure 1 and Figure 4 As shown, a mixing tank is provided inside the housing 10, a heating chamber 24 is provided between the mixing tank and the housing 10, and a steam heating coil 25 for heating is provided in the heating chamber 24; Figure 2 and Figure 4 As shown, a steam inlet pipe 12 is provided above the heating chamber 24 , and a steam outlet pipe 13 is provided below the heating chamber 24 . Both the steam inlet pipe 12 and the steam outlet pipe 13 are communicated with the shell 10 and the heating chamber 24 .

[0032] Specifically, the steam inlet pipe 12 of the heating chamber 24 is located at the upper part of the mixing tank, and the steam outlet pipe 13 is located at the lower part of the mixing tank; the lower part of the mixing tank is provided with a nozzle 11 for spraying fertilizer slurry. The nozzle 11 is a double-layer structure with a plurality of spray holes opened inside. The mixing tank is heated by injecting steam into the heating chamber 24 and cooperating with the steam heating coil 25.

[0033] like Figure 2 and Figure 3 As shown, an annular groove 14 is provided on the bottom curved surface of the housing 10, and a fixing ring 17 is fixedly provided on the top surface of the nozzle 11. The inner side of the fixing ring 17 corresponds to the shape of the annular groove 14, and the fixing ring 17 slides around the annular groove 14; Figure 1 、 Figure 2 and Figure 3 As shown, two scrapers 15 are symmetrically fixed to the bottom surface of the housing 10. The scrapers 15 correspond to the shape of the inner side of the nozzle 11, and the scrapers 15 slide around the inner wall surface of the nozzle 11; Figure 3 、 Figure 4 and Figure 5 As shown, the same cooling water chamber 22 is opened inside the nozzle 11 and the fixed ring 17, and a water inlet pipe 18 is fixedly provided on the top surface of the fixed ring 17, and the water inlet pipe 18 is communicated with the cooling water chamber 22. A water outlet pipe 16 is fixedly provided on the bottom of the nozzle 11, and the water outlet pipe 16 is communicated with the cooling water chamber 22.

[0034] Specifically, the cross-section of the annular groove 14 is trapezoidal in shape, and a trapezoidal slip ring corresponding to the annular groove 14 is provided in the fixed ring 17. The trapezoidal slip ring slides around in the annular groove 14. When the nozzle 11 rotates, it rotates around the two scrapers 15. At this time, the scrapers 15 continuously scrape off the slurry attached to the inner wall of the nozzle 11. Water is added to the cooling water chamber 22 through the water inlet pipe 18. The water source cools the slurry sprayed from the nozzle hole, and the outlet pipe 16 discharges the heated water to replace the cooling water.

[0035] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, a high-speed motor 21 is fixedly mounted on the top surface of the outer shell 10, and the output end of the high-speed motor 21 is connected to the top surface of the stirring paddle 20. The scraping frame 19 is a cross-shaped structure composed of two U-shaped square frames. A heating tube rack 23 similar in shape to the stirring paddle 20 is provided inside the stirring paddle 20, and the bottom surface of the stirring paddle 20 is fixedly connected to the inner bottom surface of the nozzle 11.

[0036] Specifically, a feed pipe is provided on the top surface of the housing 10, and the feed pipe is located on one side of the high-speed motor 21. The slurry is added into the feed pipe, and the slurry enters the mixing tank, and the high-speed motor 21 is started synchronously. The high-speed motor 21 drives the stirring paddle 20 to stir the slurry. During the stirring process, the heating pipe rack 23 heats the slurry, and the synchronous steam heating coil 25 heats the steam in the heating chamber 24 to conduct heat to the slurry. The high-speed motor 21 also drives the stirring paddle 20 to rotate at high speed. The scraper frame 19 is driven to scrape the inner wall of the mixing tank to scrape off the slurry attached to the inner wall of the mixing tank. Synchronously, the nozzle 11 located at the bottom of the stirring paddle 20 rotates at high speed. At this time, the slurry sprayed out from the nozzle hole of the nozzle 11 is cooled by the cooling water in the cooling water chamber 22 to achieve rapid cooling and granulation. Moreover, while the nozzle 11 rotates around the two scrapers 15, the slurry attached to the inner wall of the nozzle 11 will be scraped off by the two scrapers 15. At this time, the scraping effect of the scraping assembly is improved.

[0037] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A high tower granulator, characterized in that, include A housing (10), wherein a nozzle (11) is rotatably provided at the bottom of the housing (10); A scraping assembly, the scraping assembly being rotatably disposed in the housing (10), the scraping assembly comprising a scraper (15), a scraping frame (19) and a stirring paddle (20), the scraping frame (19) being fixedly disposed on the curved surface of the stirring paddle (20), the scraping frame (19) being rotatably disposed in the housing (10), and the scraper (15) being fixedly disposed on the bottom surface of the housing (10); A heating structure comprises a heating pipe rack (23) and a steam heating coil (25); the heating pipe rack (23) is fixedly arranged in a scraping rack (19); and the steam heating coil (25) is fixedly arranged in an outer shell (10).

2. A high tower granulator according to claim 1, characterized in that, A mixing tank is provided inside the shell (10), a heating chamber (24) is provided between the mixing tank and the shell (10), and a steam heating coil (25) for heating is provided in the heating chamber (24).

3. A high tower granulator according to claim 2, characterized in that, A steam inlet pipe (12) is provided above the heating chamber (24), and a steam outlet pipe (13) is provided below the heating chamber (24). Both the steam inlet pipe (12) and the steam outlet pipe (13) are in communication with the outer shell (10) and the heating chamber (24).

4. A high tower granulator according to claim 1, characterized in that, An annular groove (14) is provided on the bottom curved surface of the shell (10), and a fixing ring (17) is fixedly provided on the top surface of the nozzle (11). The inner side of the fixing ring (17) corresponds to the shape of the annular groove (14), and the fixing ring (17) slides around the annular groove (14).

5. A high tower granulator according to claim 1, characterized in that, Two scrapers (15) are symmetrically fixed to the bottom surface of the shell (10), and the scrapers (15) correspond to the shape of the inner side of the nozzle (11). The scrapers (15) slide around on the inner wall surface of the nozzle (11).

6. A high tower granulator according to claim 4, characterized in that, The nozzle (11) and the fixed ring (17) are provided with a same cooling water cavity (22). A water inlet pipe (18) is fixedly provided on the top surface of the fixed ring (17), and the water inlet pipe (18) is communicated with the cooling water cavity (22). A water outlet pipe (16) is fixedly provided on the bottom of the nozzle (11), and the water outlet pipe (16) is communicated with the cooling water cavity (22).

7. A high tower granulator according to claim 1, characterized in that, A high-speed motor (21) is fixedly mounted on the top surface of the housing (10), and the output end of the high-speed motor (21) is connected to the top surface of the stirring paddle (20). The scraping frame (19) is a cross-shaped structure consisting of two U-shaped square frames. A heating tube rack (23) similar in shape to the stirring paddle (20) is provided inside the stirring paddle (20), and the bottom surface of the stirring paddle (20) is fixedly connected to the inner bottom surface of the nozzle (11).

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