Chemical fertilizer granulating and drying device

Abstract

The utility model discloses a chemical fertilizer granulating and drying device which comprises a bottom plate, an outer cylinder is fixed on one side of the upper surface of the bottom plate through a supporting frame, an inner cylinder is fixedly connected in the outer cylinder, a closed heating cavity is formed between the outer side wall of the inner cylinder and the inner side wall of the outer cylinder, and an annular spiral material guide plate is fixedly connected in the inner cylinder. Air inlets are jointly formed in the middles of the bottom ends of the outer cylinder and the inner cylinder, air outlets are formed in the middles of the top ends of the outer cylinder and the inner cylinder, and fans are fixed in the air outlets. According to the drying device, the outer cylinder, the inner cylinder, the heating cavity, the annular spiral material guide plate, the fan and the heating assembly are arranged, when materials slowly slide down along the annular spiral material guide plate, the heating assembly can inject high-temperature flue gas into the heating cavity, and therefore the materials are heated and dried; an upward air flowing channel is formed in the middle of the inner barrel and the middle of the annular spiral material guide plate, and evaporated water can be rapidly brought out in cooperation with a fan.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer processing, in particular to a fertilizer granulation and drying device. Background Art

[0002] Chemical fertilizers are referred to as fertilizers. They are made by chemical or physical methods and contain one or more nutrients required for the growth of crops. They are also called inorganic fertilizers, including nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, micro-fertilizers, compound fertilizers, etc. When granulating fertilizers, wet materials are generally used for granulation. Therefore, the fertilizer particles after granulation need to go through a drying process. However, the current fertilizer granulation and drying devices have the following disadvantages:

[0003] When the current drying device is used, the fertilizer particles are placed in the drying device, and the fertilizer particles are dried by the internal drying components, and then the fertilizer particles are taken out or discharged. This results in that the drying cannot be carried out continuously, and the loading and unloading process wastes time. In addition, if the fertilizer particles are to be completely dried, the drying time required is long. Secondly, the current drying devices all use electric heating for drying, which results in relatively high energy consumption of the device and relatively increased drying costs. Therefore, the utility model proposes a fertilizer granulation and drying device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a fertilizer granulation and drying device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fertilizer granulation and drying device comprises a base plate, an outer cylinder is fixed to one side of the upper surface of the base plate through a support frame, an inner cylinder is fixedly connected to the inside of the outer cylinder, a closed heating chamber is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, an annular spiral guide plate is fixedly connected to the inside of the inner cylinder, an air inlet is jointly provided in the middle of the bottom end of the outer cylinder and the inner cylinder, an air outlet is provided in the middle of the top end of the outer cylinder and the inner cylinder, and a fan is fixed inside the air outlet, a heating component is fixed to the other side of the upper surface of the base plate through a support frame, a smoke exhaust pipe is fixedly connected to the top end of the outer cylinder side wall, the smoke exhaust pipe is communicated with the heating chamber, and a filter component is fixedly connected to the middle of the smoke exhaust pipe.

[0006] Furthermore, the top and bottom ends of the annular spiral guide plate are both sealed, the top ends of the outer cylinder and the inner cylinder are fixedly connected with a feeding hopper, and the bottom ends of the side walls of the outer cylinder and the inner cylinder and close to the tail of the annular spiral guide plate are fixedly installed with a discharge guide plate.

[0007] Furthermore, a baffle is fixed on the inner side of the annular spiral material guide plate.

[0008] Furthermore, the heating assembly includes a combustion furnace fixed on the upper surface of the base plate, a smoke guide pipe is fixedly connected to the top wall of the combustion furnace, the other end of the smoke guide pipe passes through the side wall of the outer tube and is connected to the heating chamber, a feeding port is provided on the top side wall of the combustion furnace, and a slag discharge port is provided on the bottom wall of the combustion furnace.

[0009] Furthermore, a bracket is fixed inside the combustion furnace and below the charging port.

[0010] Furthermore, the filter assembly includes a box body fixed to the middle of the smoke exhaust pipe, a plurality of filter frames are vertically arranged inside the box body, and a filter screen is fixed inside each filter frame.

[0011] Furthermore, a strip opening is provided on the top wall of the box body and at the top of each filter frame, and a mounting plate is fixedly connected to the top of the filter frame through the strip opening, and the mounting plate is fixedly connected to the upper surface of the box body by bolts.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, the fertilizer granulation and drying device is provided with an outer cylinder, an inner cylinder, a heating chamber, an annular spiral guide plate, a fan and a heating component. When the material slowly slides down along the annular spiral guide plate, the heating component injects high-temperature flue gas into the heating chamber, thereby heating and drying the material. In addition, an upward air flow channel is formed in the middle of the inner cylinder and the middle of the annular spiral guide plate, and the evaporated water can be quickly taken out in conjunction with the fan. The device can continuously add and discharge materials, thereby realizing continuous drying of materials. In addition, the material moves along the annular spiral guide plate for a long time, which can ensure complete drying of the material and improve production efficiency.

[0014] 2. When the utility model is in use, the fertilizer granulation and drying device is provided with a heating component and a filtering component. The heating component adopts a combustion furnace. Fuel is added inside the combustion furnace to heat the heating chamber between the inner cylinder and the outer cylinder using the heat generated by the combustion, which can reduce energy consumption. The filtering component is used to filter the combustion smoke before discharging it to avoid affecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 : The overall stereogram of the utility model;

[0017] Figure 2 : An overall cross-sectional view of the utility model;

[0018] Figure 3 : A top sectional view of the bottom of the outer cylinder and the inner cylinder of the utility model;

[0019] Figure 4 : A cross-sectional view of a filter assembly of the present invention.

[0020] The reference numerals are as follows:

[0021] 1. Bottom plate; 2. Outer cylinder; 3. Inner cylinder; 4. Heating chamber; 5. Annular spiral guide plate; 6. Baffle; 7. Feeding hopper; 8. Discharge guide plate; 9. Heating assembly; 91. Combustion furnace; 92. Feeding port; 93. Slag discharge port; 94. Bracket; 95. Smoke guide pipe; 10. Smoke exhaust pipe; 11. Filter assembly; 111. Box body; 112. Filter frame; 113. Filter screen; 114. Strip port; 115. Mounting plate; 12. Air inlet; 13. Fan. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] like Figure 1-Figure 4 As shown, it relates to a fertilizer granulation and drying device, including a base plate 1, an outer cylinder 2 is fixed to one side of the upper surface of the base plate 1 through a support frame, an inner cylinder 3 is fixedly connected to the outer cylinder 2, a closed heating chamber 4 is formed between the outer wall of the inner cylinder 3 and the inner wall of the outer cylinder 2, an annular spiral guide plate 5 is fixedly connected to the inner cylinder 3, an air inlet 12 is commonly provided in the middle of the bottom ends of the outer cylinder 2 and the inner cylinder 3, an air outlet is provided in the middle of the top ends of the outer cylinder 2 and the inner cylinder 3, and a fan 13 is fixed inside the air outlet, a heating component 9 is fixed to the other side of the upper surface of the base plate 1 through a support frame, a smoke exhaust pipe 10 is fixedly connected to the top end of the side wall of the outer cylinder 2, the smoke exhaust pipe 10 is connected to the heating chamber 4, and a filter component 11 is fixedly connected to the middle of the smoke exhaust pipe 10.

[0024] like Figure 2 and Figure 3 As shown, the top and bottom ends of the annular spiral guide plate 5 are both sealed, the tops of the outer cylinder 2 and the inner cylinder 3 are fixedly connected with a feeding hopper 7, and the bottom ends of the side walls of the outer cylinder 2 and the inner cylinder 3 and close to the tail of the annular spiral guide plate 5 are fixedly installed with a discharge guide plate 8.

[0025] Wet fertilizer granular raw materials can be added into the inner tube 3 through the feeding hopper 7, and the raw materials will slide along the annular spiral guide plate 5 and finally be discharged along the discharge guide plate 8 at the rear end of the annular spiral guide plate 5.

[0026] like Figure 2 and Figure 3 As shown, a baffle plate 6 is fixed on the inner side of the annular spiral guide plate 5 .

[0027] By setting the baffle 6, the fertilizer particles are prevented from being separated from the annular spiral guide plate 5 when the annular spiral guide plate 5 slides down, and an air flow channel is formed inside the baffle 6 and the center of the inner cylinder 3. When the fan 13 is turned on, the air flow inside the channel can be accelerated, so that the moisture generated by drying can be quickly taken out.

[0028] like Figure 1 and Figure 2 As shown, the heating assembly 9 includes a combustion furnace 91 fixed on the upper surface of the base plate 1, a smoke guide pipe 95 is fixedly connected to the top wall of the combustion furnace 91, the other end of the smoke guide pipe 95 passes through the side wall of the outer tube 2 and is connected to the heating chamber 4, a feeding port 92 is provided on the top side wall of the combustion furnace 91, and a slag discharge port 93 is provided on the bottom wall of the combustion furnace 91.

[0029] By adding fuel such as firewood into the combustion furnace 91, the high-temperature flue gas generated by the combustion will enter the heating chamber 4 along the smoke guide pipe 95, thereby heating the inner tube 3 and the internal space of the inner tube 3, thereby achieving heating and drying of the fertilizer particles on the surface of the annular spiral guide plate 5.

[0030] like Figure 2 As shown, a bracket 94 is fixed inside the combustion furnace 91 and below the charging port 92. The bracket 94 is mesh-shaped and can support the fuel, and the burned ash can be discharged from the slag discharge port 93.

[0031] like Figure 2 and Figure 4 As shown, the filter assembly 11 includes a box body 111 fixed to the middle of the smoke exhaust pipe 10 , a plurality of filter frames 112 are vertically arranged inside the box body 111 , and a filter screen 113 is fixed inside each filter frame 112 .

[0032] The smoke entering the heating chamber 4 will flow upward and then be discharged from the smoke exhaust pipe 10. When passing through the smoke exhaust pipe 10, it will pass through the filter 113 inside the box body 111 to filter the smoke, so that the exhausted smoke will not affect the atmospheric environment.

[0033] like Figure 4 As shown, a strip opening 114 is provided on the top wall of the box body 111 and at the top of each filter frame 112 , and a mounting plate 115 is fixedly connected to the top of the filter frame 112 through the strip opening 114 , and the mounting plate 115 is fixedly connected to the upper surface of the box body 111 by bolts.

[0034] Therefore, when the filtering effect of the filter 113 deteriorates or is clogged, the mounting plate 115 can be separated from the upper surface of the box body 111, and the filter frame 112 together with the filter 113 can be pulled out from the strip opening 114 to facilitate replacement or cleaning of the filter 113.

[0035] Working principle: First, add fuel to the combustion furnace 91, and the high-temperature flue gas generated by the combustion will enter the heating chamber 4 along the smoke guide pipe 95. The high temperature of the heating chamber 4 will heat the inner tube 3. Then, the fertilizer granules that have just been granulated can be lifted into the feeding hopper 7 through the lifting device. The materials enter the top of the inner tube 3 along the feeding hopper 7 and fall on the top surface of the annular spiral guide plate 5. Then, the materials slide down along the annular spiral guide plate 5. In this process, the materials will be heated and dried by the high temperature in the inner tube 3. At this time, turn on the fan 13, and use the fan 13 to accelerate the air flow, so that the evaporated water vapor can quickly flow upward and be discharged. The dried materials are discharged from the tail of the annular spiral guide plate 5 along the discharge guide plate 8. Because the annular spiral guide plate 5 of the device prolongs the moving time of the materials in the inner tube 3, it can ensure that the materials have enough time to be completely dried, and the device can continuously load materials, saving the time of loading and taking materials, thereby improving the drying efficiency.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fertilizer granulation and drying device, comprising a bottom plate (1), characterized in that: An outer cylinder (2) is fixed to one side of the upper surface of the bottom plate (1) through a support frame, an inner cylinder (3) is fixedly connected to the inside of the outer cylinder (2), a closed heating chamber (4) is formed between the outer wall of the inner cylinder (3) and the inner wall of the outer cylinder (2), an annular spiral guide plate (5) is fixedly connected to the inside of the inner cylinder (3), an air inlet (12) is commonly provided in the middle of the bottom ends of the outer cylinder (2) and the inner cylinder (3), an air outlet is provided in the middle of the top ends of the outer cylinder (2) and the inner cylinder (3), and a fan (13) is fixed inside the air outlet, a heating component (9) is fixed to the other side of the upper surface of the bottom plate (1) through a support frame, a smoke exhaust pipe (10) is fixedly connected to the top end of the side wall of the outer cylinder (2), the smoke exhaust pipe (10) is in communication with the heating chamber (4), and a filter component (11) is fixedly connected to the middle of the smoke exhaust pipe (10).

2. The fertilizer granulation and drying device according to claim 1, characterized in that: The top and bottom ends of the annular spiral guide plate (5) are both sealed, the top ends of the outer cylinder (2) and the inner cylinder (3) are fixedly connected to a feeding hopper (7), and a discharge guide plate (8) is fixedly installed at the bottom ends of the side walls of the outer cylinder (2) and the inner cylinder (3) and close to the tail of the annular spiral guide plate (5).

3. The fertilizer granulation and drying device according to claim 1 is characterized in that: A baffle plate (6) is fixed inside the annular spiral material guide plate (5).

4. The fertilizer granulation and drying device according to claim 1, characterized in that: The heating assembly (9) comprises a combustion furnace (91) fixed to the upper surface of the bottom plate (1); a smoke guide pipe (95) is fixedly connected to the top wall of the combustion furnace (91); the other end of the smoke guide pipe (95) passes through the side wall of the outer tube (2) and is connected to the heating chamber (4); a feeding port (92) is provided on the top side wall of the combustion furnace (91); and a slag discharge port (93) is provided on the bottom wall of the combustion furnace (91).

5. The fertilizer granulation and drying device according to claim 4, characterized in that: A bracket (94) is fixed inside the combustion furnace (91) and below the charging port (92).

6. The fertilizer granulation and drying device according to claim 1, characterized in that: The filter assembly (11) comprises a box body (111) fixed to the middle of the smoke exhaust pipe (10), a plurality of filter frames (112) are vertically arranged inside the box body (111), and a filter screen (113) is fixed inside each filter frame (112).

7. The fertilizer granulation and drying device according to claim 6, characterized in that: A strip-shaped opening (114) is provided on the top wall of the box body (111) and at the top of each filter frame (112); a mounting plate (115) is fixedly connected to the top of the filter frame (112) through the strip-shaped opening (114); and the mounting plate (115) is fixedly connected to the upper surface of the box body (111) by bolts.

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