Fertilizer production cooling device

Abstract

The utility model belongs to the technical field of fertilizer cooling, and particularly relates to a fertilizer production cooling device which comprises a collector, a pneumatic cooling conveying pipeline, a chemical fertilizer particle discharging pipeline, a cooling air pipe and a dust gas blocking bin. A dust gas blocking bin is fixedly connected to the side, right opposite to the pneumatic cooling conveying pipeline, of the inner wall of the collector, the dust gas blocking bin is inclined to the end face, right opposite to the pneumatic cooling conveying pipeline, of the dust gas blocking bin, and a filter screen is fixedly connected to the inclined end face of the dust gas blocking bin. Falling particles are evenly wrapped by low-temperature high-speed airflow and pushed to the collector, buffering collection and dust gas collection are achieved, and therefore complete gas circulation is formed, it is guaranteed that the particles are cooled efficiently and accurately, the cooling efficiency is improved to the maximum extent, process circulation is smooth, and electric energy loss and horizontal occupied area are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fertilizer cooling, and in particular relates to a fertilizer production cooling device. Background Art

[0002] After the fertilizer granules are processed, they need to be cooled. The current process is to discharge the finished product to the cooling mechanism and then to the collection mechanism. The cooling mechanism most commonly uses heat exchange to dissipate heat. A large number of granular products are located in the cooling device and are cooled by turning over and coordinating with low-temperature air to enter the exchange. This cooling method is relatively cumbersome, mainly because the turning of the granule pile is affected by gravity, resulting in large power loss. Secondly, during the heat exchange process, cold air flows into the interior. Due to too many granules, the cold air cannot accurately act on each granule, resulting in a slow cooling effect or repeated cooling resulting in insufficient cooling uniformity. In addition, the cooling stage and the collection stage cannot be carried out simultaneously, which is not conducive to the process flow. At the same time, if a tunnel cooling mechanism is used, the granules are spread flat by a conveyor and cooled by air convection, which is more convenient for the process flow, but the need to increase the conveying mechanism will also cause space waste. Utility Model Content

[0003] The utility model provides a fertilizer production cooling device, including a collector, a pneumatic cooling conveying pipeline, a fertilizer particle discharge pipeline, a cooling air pipe, and a dust gas barrier chamber;

[0004] The pneumatic cooling delivery pipeline is connected to the top of the collector side, the cooling air pipe is connected to the pneumatic cooling delivery pipeline, an air cooling mechanism or a liquid cooling mechanism may be installed outside the cooling air pipe, and the cooling air pipe is connected to an external high-pressure air pump;

[0005] The fertilizer particle discharge pipeline is obliquely connected to the top of the pneumatic cooling and conveying pipeline, and the fertilizer particle discharge pipeline is connected to the discharge pipeline of the fertilizer preparation mechanism;

[0006] A dust gas barrier bin is fixedly connected to the inner wall of the collector on the side opposite to the pneumatic cooling and conveying pipeline, the dust gas barrier bin is inclined to the end face opposite to the pneumatic cooling and conveying pipeline, a filter is fixedly connected to the inclined end face of the dust gas barrier bin, a side of the dust gas barrier bin away from the pneumatic cooling and conveying pipeline is fixedly connected to a gas exhaust pipe, and the gas exhaust pipe is connected to an exhaust gas treatment mechanism;

[0007] A first deceleration rubber layer and a dynamic second deceleration mechanism are fixedly connected below the collector. The first deceleration rubber layer is located below the pneumatic cooling and conveying pipeline, and the dynamic second deceleration mechanism is installed below the dust gas isolation chamber.

[0008] The bottom surface height of the first decelerating and falling rubber layer is lower than the top height of the dynamic second decelerating and falling mechanism, and the bottom edge of the first decelerating and falling rubber layer is located directly below the dust gas barrier chamber.

[0009] Among them, the dynamic second deceleration drop mechanism includes an outer frame, a second deceleration drop rubber layer, and springs. The outer frame is rotatably connected to the collector, and the outer frame and the collector are elastically connected through two springs. The second deceleration drop rubber layer is fixedly connected to the inner wall of the outer frame.

[0010] Wherein, a drop guide controller for driving the dynamic second deceleration drop mechanism to rotate is installed below the dust gas barrier bin, and the drop guide controller includes a telescopic push rod fixedly connected to the inner wall of the collector and a roller rotatably connected to the end of the telescopic push rod, and the roller (72) is in contact with the upper surface of the outer frame.

[0011] Wherein, a groove body is provided on the bottom side of the collector, and a collection box is accommodated inside the groove body.

[0012] The beneficial effects of the utility model are as follows: using high-speed low-temperature airflow as a carrier, when the particles continuously fall into the pneumatic cooling and conveying pipeline, the low-temperature high-speed airflow is used to continuously promote the movement of the particles, and at the same time, the flow rate of the fertilizer particle discharge pipeline is fixed, the volume of the pneumatic cooling and conveying pipeline is fixed, and the low-temperature high-speed airflow is fixed, so the fallen particles are evenly wrapped by the low-temperature high-speed airflow and pushed to the collector, realizing buffer collection and dust gas collection, thereby forming a complete gas cycle, ensuring efficient and accurate cooling of the particles, maximizing the cooling efficiency, smoothing the process flow, and reducing power loss and horizontal occupied area.

[0013] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the main cross-section of the utility model;

[0016] Figure 3 This is a schematic diagram of the use of the utility model

[0017] In the figure: 1. Collector; 11. Collecting box; 2. Pneumatic cooling and conveying pipeline; 3. Fertilizer particle discharge pipeline; 4. Cooling air pipe; 5. Dust gas barrier chamber; 51. Filter; 52. Gas discharge pipeline; 6. First deceleration drop rubber layer; 7. Drop guide controller; 71. Telescopic push rod; 72. Roller; 8. Dynamic second deceleration drop mechanism; 81. Outer frame; 82. Second deceleration drop rubber layer; 83. Shrapnel. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 3 , the utility model provides the following technical solutions: including a collector 1, a pneumatic cooling and conveying pipeline 2, a fertilizer particle discharge pipeline 3, a cooling air pipe 4, and a dust gas barrier chamber 5;

[0019] The pneumatic cooling delivery pipeline 2 is connected to the top of the side of the collector 1, the cooling air pipe 4 is connected to the pneumatic cooling delivery pipeline 2, an air cooling mechanism or a liquid cooling mechanism can be installed outside the cooling air pipe 4, and the cooling air pipe 4 is connected to an external high-pressure air pump;

[0020] The fertilizer particle discharge pipeline 3 is obliquely connected to the top of the pneumatic cooling and conveying pipeline 2, and the fertilizer particle discharge pipeline 3 is connected to the discharge pipeline of the fertilizer preparation mechanism;

[0021] A dust gas barrier bin 5 is fixedly connected to the inner wall of the collector 1 on the side opposite to the pneumatic cooling and conveying pipeline 2. The end faces of the dust gas barrier bin 5 and the pneumatic cooling and conveying pipeline 2 are inclined. A filter screen 51 is fixedly connected to the inclined end face of the dust gas barrier bin 5. A gas exhaust pipe 52 is fixedly connected to the side of the dust gas barrier bin 5 away from the pneumatic cooling and conveying pipeline 2. The gas exhaust pipe 52 is connected to the exhaust gas treatment mechanism.

[0022] A first decelerating and falling rubber layer 6 and a dynamic second decelerating and falling mechanism 8 are fixedly connected below the collector 1 . The first decelerating and falling rubber layer 6 is located below the pneumatic cooling and conveying pipeline 2 , and the dynamic second decelerating and falling mechanism 8 is installed below the dust gas barrier chamber 5 .

[0023] In this implementation scheme: The core of this patent is to establish a material flow cooling channel, using high-speed low-temperature airflow as a carrier, and when the particles continuously fall into the pneumatic cooling and conveying pipeline 2, the low-temperature high-speed airflow is used to continuously promote the movement of the particles. At the same time, the flow rate of the fertilizer particle discharge pipeline 3 is fixed, the volume of the pneumatic cooling and conveying pipeline 2 is fixed, and the low-temperature high-speed airflow is fixed. Therefore, the fallen particles are evenly wrapped by the low-temperature high-speed airflow and pushed to the collector 1, realizing buffer collection and dust gas collection, thereby forming a complete gas cycle, ensuring efficient and accurate cooling of the particles, maximizing the cooling efficiency, smooth process flow, and reducing power loss and horizontal occupied area.

[0024] First, the fertilizer particle discharge pipeline 3 is built above the pneumatic cooling and conveying pipeline 2. The finished high-temperature particles fall into the inside of the pneumatic cooling and conveying pipeline 2 due to gravity. A cooling air pipe 4 is set at the front end of the pneumatic cooling and conveying pipeline 2. The cooling air pipe 4 is made of metal or other materials with high thermal conductivity. Fins can be set inside the cooling air pipe 4 to assist in cooling. A water tank can be set outside the cooling air pipe 4. Water and the cooling air pipe 4 are used for heat exchange to reduce the temperature inside the cooling air pipe 4. When the high-pressure gas passes through the cooling air pipe 4, low-temperature air is formed. Alternatively, a liquid nitrogen pipeline is coiled outside the cooling air pipe 4 to rapidly cool it down with liquid nitrogen. Adaptive changes can be made based on actual needs and multiple characteristics such as the length of the cooling air pipe 4, the particle temperature, and the target temperature for cooling.

[0025] The high-temperature airflow from the cooling air pipe 4 pushes the particles inside the pneumatic cooling conveying pipeline 2 to quickly rush into the collector 1, and the wind and the particles undergo temperature replacement, and the dust inside the particles falls on the dust gas barrier 5. The filter 51 is made of non-metallic material to reduce the impact of the particles on the filter 51. The dust is affected by the wind and enters the dust gas barrier 5, and is discharged through the gas exhaust pipe 52, filtering the dust and realizing air convection at the same time.

[0026] Large particles blocked by the filter 51 fall downward due to the influence of the inclined surface. In actual use, the pushing airflow of the cooling air pipe 4 does not need to push the particles to the filter 51, and the particles can fall naturally. However, the dust is small in mass and will still pass through the filter 51.

[0027] The cooled particles are easily damaged when falling, so a first decelerating rubber layer 6 is arranged under the collector 1. The first decelerating rubber layer 6 itself is elastic, and can cushion the particles well when falling and guide them to the dynamic second decelerating falling mechanism 8, and further guide them to the collection box 11 below through the dynamic second decelerating falling mechanism 8, thereby completing the collection.

[0028] The bottom surface height of the first deceleration rubber layer 6 is lower than the top height of the dynamic second deceleration mechanism 8, and the bottom edge of the first deceleration rubber layer 6 is located directly below the dust gas barrier 5; for some particles that rush into the filter 51, they are affected by the slope of the filter 51 and gravity and can still fall to the first deceleration rubber layer 6. Please refer to Figure 2 , and the bottom surface height of the first deceleration rubber layer 6 is lower than the top height of the dynamic second deceleration mechanism 8. When the particles fall directly to the first deceleration rubber layer 6, there is still a horizontal force. Therefore, with the guided movement of the first deceleration rubber layer 6, the particles can impact the top of the outer frame 81, thereby further buffering.

[0029] The dynamic second deceleration and dropping mechanism 8 includes an outer frame 81, a second deceleration and dropping rubber layer 82, and springs 83. The outer frame 81 is rotatably connected to the collector 1. The outer frame 81 and the collector 1 are elastically connected by two springs 83. The second deceleration and dropping rubber layer 82 is fixedly connected to the inner wall of the outer frame 81. A dropping guide controller 7 for driving the dynamic second deceleration and dropping mechanism 8 to rotate is installed below the dust gas barrier chamber 5. The dropping guide controller 7 includes a telescopic push rod 71 fixedly connected to the inner wall of the collector 1 and a roller 72 rotatably connected to the end of the telescopic push rod 71, and the roller 72 is in contact with the upper surface of the outer frame 81. If the discharge position below the dynamic second deceleration and dropping mechanism 8 is fixed, it is easy to cause particle accumulation in a local part of the collection box 11. Therefore, it is supported by the outer frame 81. The telescopic push rod 71 pushes the roller 72 to contact the outer frame 81, so that the outer frame 81 rotates, the springs 83 are elastically deformed, and the end of the outer frame 81 is horizontally displaced to avoid accumulation problems.

[0030] A trough is provided on the bottom side of the collector 1 , and a collection box 11 is accommodated inside the trough; after a period of time, the collection box 11 can be collected, or a packaging conveyor belt can be added under the collector 1 to transfer to the packaging process.

Claims

1. A fertilizer production cooling device, characterized in that: It comprises a collector (1), a pneumatic cooling and conveying pipeline (2), a fertilizer particle discharge pipeline (3), a cooling air pipe (4), and a dust gas barrier chamber (5); The pneumatic cooling delivery pipeline (2) is in communication with the top of the side of the collector (1), the cooling air pipe (4) is in communication with the pneumatic cooling delivery pipeline (2), an air cooling mechanism or a liquid cooling mechanism may be installed outside the cooling air pipe (4), and the cooling air pipe (4) is in communication with an external high-pressure air pump; The fertilizer particle discharge pipeline (3) is obliquely connected to the top of the pneumatic cooling and conveying pipeline (2), and the fertilizer particle discharge pipeline (3) is connected to the discharge pipeline of the fertilizer preparation mechanism; A dust gas barrier chamber (5) is fixedly connected to the inner wall of the collector (1) on the side opposite to the pneumatic cooling conveying pipeline (2); the end faces of the dust gas barrier chamber (5) opposite to the pneumatic cooling conveying pipeline (2) are inclined; a filter screen (51) is fixedly connected to the inclined end face of the dust gas barrier chamber (5); a gas exhaust pipe (52) is fixedly connected to the side of the dust gas barrier chamber (5) away from the pneumatic cooling conveying pipeline (2); and the gas exhaust pipe (52) is connected to an exhaust gas treatment mechanism; A first decelerating and falling rubber layer (6) and a dynamic second decelerating and falling mechanism (8) are fixedly connected below the collector (1); the first decelerating and falling rubber layer (6) is located below the pneumatic cooling and conveying pipeline (2); and the dynamic second decelerating and falling mechanism (8) is installed below the dust gas barrier chamber (5).

2. A fertilizer production cooling device according to claim 1, characterized in that: The bottom surface height of the first decelerating and falling rubber layer (6) is lower than the top surface height of the dynamic second decelerating and falling mechanism (8), and the bottom edge of the first decelerating and falling rubber layer (6) is located directly below the dust gas barrier chamber (5).

3. A fertilizer production cooling device according to claim 1, characterized in that: The dynamic second deceleration drop mechanism (8) comprises an outer frame (81), a second deceleration drop rubber layer (82), and a spring sheet (83); the outer frame (81) is rotatably connected to the collector (1); the outer frame (81) and the collector (1) are elastically connected via two spring sheets (83); the second deceleration drop rubber layer (82) is fixedly connected to the inner wall of the outer frame (81); a drop guide controller (7) for driving the dynamic second deceleration drop mechanism (8) to rotate is installed below the dust gas barrier chamber (5); the drop guide controller (7) comprises a telescopic push rod (71) fixedly connected to the inner wall of the collector (1) and a roller (72) rotatably connected to the end of the telescopic push rod (71); the roller (72) is in contact with the upper surface of the outer frame (81).

4. A fertilizer production cooling device according to claim 1, characterized in that: The collector (1) has a groove body on the bottom side thereof, and a collection box (11) is accommodated inside the groove body.

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