Biomass particle rapid cooling device

Abstract

The utility model relates to the technical field of biomass fuel, and discloses a biomass particle rapid cooling device which comprises a placing base, a cooling bin capable of being arranged in a stacked mode is placed on the placing base, a conveying belt moving backwards is arranged at the front end in the cooling bin, and air inlets are evenly formed in the upper ends of the left side and the right side of the cooling bin. And temperature sensors are symmetrically arranged on the front side and the rear side of the top face of the cooling bin, a feeding port is formed in the front side of the top face of the cooling bin, a discharging port is formed in the rear side of the bottom face of the cooling bin, and the cooling bin and the internal assemblies are symmetrically arranged in a front-and-back mode in an overlapped mode. By arranging the cooling bins capable of being stacked, the space utilization rate can be greatly increased, and the cooling scale can be flexibly expanded according to the yield requirement; a plurality of cooling fans are uniformly arranged on the two sides, so that transverse penetrating airflow is formed, and particles are in full contact with cold air in the conveying process; and the cooling fans are respectively controlled and are matched with the temperature sensor, so that segmented cooling adjustment can be realized, and the cooling accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of biomass fuel technology, specifically to a rapid cooling device for biomass pellets. Background Technology

[0002] Biomass fuel pellets are an environmentally friendly fuel made from agricultural and forestry waste. The raw materials are widely available, including straw, sawdust, and rice husks. After processing such as crushing, drying, and extrusion, they become pellets with a diameter of approximately 6 to 8 millimeters. Biomass fuel pellets offer numerous advantages. From an environmental perspective, they emit low levels of sulfur and nitrogen pollutants during combustion, with near-zero carbon dioxide emissions, making them a renewable and clean energy source. In terms of usage, the high particle density and small size of the fuel pellets facilitate storage and transportation, and they boast high combustion efficiency, increasing efficiency by more than 50% compared to traditional loose burning of straw. Furthermore, the production of biomass fuel pellets transforms waste into valuable resources, contributing to the resource utilization of agricultural and forestry waste and reducing environmental pollution from incineration. Therefore, biomass fuel pellets are widely used in heating, industrial boilers, and biomass power generation, aligning with the low-carbon development trend and serving as an important alternative to fossil fuels.

[0003] Patent CN220892698U discloses a cooling device for biomass pellet processing, including a storage box. Support components are located below both ends of the storage box. A cooling fan is located on the outer end of the storage box. An air-cooling component for rapid cooling of the biomass pellets is located inside the storage box. The cooling fan is connected to the air-cooling component via a first connecting pipe. A discharge component is located on the lower end of the storage box. Through the cooling fan, the first connecting pipe, and the air-cooling component, the cooling effect of the biomass pellets inside the storage box is improved, and the cooling time is reduced.

[0004] Although the above-mentioned device improves the cooling effect of biomass pellets, it still has the following shortcomings:

[0005] Temperature change is an indicator that needs to be monitored constantly when cooling biomass fuel pellets. However, the above-mentioned device lacks temperature detection and temperature regulation of the pellets, which can lead to overcooling or undercooling of the pellets, significantly affecting the quality and performance of the biomass pellets. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a rapid cooling device for biomass pellets, which solves the problem that the quality and performance of pellets are significantly affected by the lack of temperature detection and cooling temperature regulation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for biomass pellets, including a base, on which stackable cooling chambers are placed. A conveyor belt that moves backward is provided at the front end of the cooling chamber. Air inlets are evenly provided on the upper ends of the left and right sides of the cooling chamber. Cooling fans that are controlled separately are provided in the air inlets. Temperature sensors are symmetrically arranged on the front and back of the top surface of the cooling chamber. A feed inlet is provided on the front side of the top surface of the cooling chamber. A discharge outlet is provided on the rear side of the bottom surface of the cooling chamber. The feed inlet and discharge outlet are symmetrically arranged on the horizontal plane. The cooling chambers and their internal components are symmetrically stacked.

[0008] Furthermore, a guide hopper that fits into the feed inlet is placed on the top surface of the cooling chamber, and a limiting plate that fits into the top surface of the cooling chamber is provided on the outer side of the lower end of the guide hopper.

[0009] Furthermore, a guide plate extending to the bottom surface of the conveyor belt is provided on the inner front end of the discharge port.

[0010] Furthermore, the top surface of the front end of the guide plate is provided with a scraper blade that is inclined backward and upward, and the top of the scraper blade is 3 to 5 mm away from the bottom surface of the conveyor belt.

[0011] Furthermore, a sliding dustproof net is installed on the outside of the air inlet, and a placement rack for sliding the dustproof net up and down is installed on the outside of the cooling chamber.

[0012] Furthermore, a temperature display screen connected to a temperature sensor is installed on the rear side of the cooling chamber.

[0013] Furthermore, mounting alignment blocks are symmetrically arranged on the upper ends of the left and right sides of the cooling chamber, with the top of the mounting alignment blocks being higher than the top surface of the cooling chamber. Alignment clips corresponding to the positions of the mounting alignment blocks are arranged on the lower ends of the left and right sides of the cooling chamber, and base alignment blocks that cooperate with the alignment clips are arranged on both sides of the base.

[0014] Furthermore, an observation window is provided on the front side of the cooling chamber.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting up stackable cooling chambers, space utilization can be significantly improved, and the cooling scale can be flexibly expanded according to production needs. Multiple cooling fans evenly placed on both sides create a transverse airflow, ensuring that particles fully contact the cold air during transport. Individual fan control, combined with temperature sensors, allows for segmented cooling adjustment, improving cooling accuracy. Guide plates guide the particles downwards, while scraper blades on the guide plates remove residual particles from the conveyor belt surface upon discharge. Sliding dust screens prevent dust ingress and can be quickly removed for cleaning, facilitating daily maintenance. A temperature display screen connected to a temperature sensor provides intuitive temperature data, and independent temperature control for different cooling chambers and fans improves cooling uniformity. Alignment blocks, clamps, and base alignment blocks ensure precise and rapid alignment of cooling chambers during stacking and placement, improving installation efficiency. Observation windows allow operators to monitor the operation within the cooling chambers in real time, promptly identifying and addressing machine malfunctions, thus improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention after being cut in half.

[0019] Figure 3 This is a three-dimensional structural diagram of the cooling chamber of this utility model after it has been cut open and disassembled.

[0020] Figure 4 This is a side view of the cooling chamber of this utility model after it has been cut in half.

[0021] In the diagram: 1. Placement base; 101. Base alignment block; 2. Cooling chamber; 201. Air inlet; 202. Cooling fan; 203. Temperature sensor; 204. Feed inlet; 205. Discharge outlet; 206. Guide plate; 207. Scraper blade; 208. Dustproof net; 209. Placement rack; 210. Temperature display screen; 211. Installation alignment block; 212. Alignment clamp; 213. Observation window; 3. Conveyor belt; 4. Guide hopper; 401. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] like Figures 1 to 4As shown, a rapid cooling device for biomass pellets includes a base 1, on which stackable cooling chambers 2 are placed. A conveyor belt 3 that moves backward is provided at the front end of the interior of the cooling chamber 2. Air inlets 201 are evenly provided on the upper ends of the left and right sides of the cooling chamber 2. Cooling fans 202, which are controlled separately, are provided in the air inlets 201. Temperature sensors 203 are symmetrically arranged on the front and back of the top surface of the cooling chamber 2. A feed inlet 204 is provided on the front side of the top surface of the cooling chamber 2. A discharge outlet 205 is provided on the rear side of the bottom surface of the cooling chamber 2. The feed inlet 204 and the discharge outlet 205 are symmetrically arranged on the horizontal plane. The cooling chambers 2, together with their internal components, are symmetrically stacked.

[0024] like Figure 1 As shown, the biomass pellet cooling device in this utility model is structurally similar to existing biomass pellet cooling devices. For example, patent CN220892698U discloses a cooling device for biomass pellet processing. The main improvement of this utility model is that it solves the problem that the quality and performance of the pellets are significantly affected by the lack of temperature detection and cooling temperature regulation. Figures 1 to 4 As shown, in this utility model, a rapid cooling device for biomass pellets is used. Before use, a suitable number of cooling chambers 2 are selected according to the production requirements and arranged symmetrically front and back so that the inlet 204 and outlet 205 are close together. Multiple cooling chambers 2 can be directly connected in series to form a production line operation. During the placement process, the alignment block 211 and the base alignment block 101 are installed and used in conjunction with the alignment clamp 212 to ensure that the cooling chambers 2 can be accurately and quickly aligned when placed on the placement base 1 and stacked, thereby improving installation efficiency. Finally, the guide hopper 4 is placed at the inlet 204 to complete the installation. When cooling of biomass fuel pellets is required, the pellets are guided onto the conveyor belt 3 via the feed hopper 4 and feed inlet 204, and move along with the conveyor belt 3. During this movement, the cooling fans 202 inside the air inlet 201 create a transverse airflow. The two sets of cooling fans 202 have opposite airflow directions, ensuring that the pellets are fully exposed to cold air during transport and do not shift to one side. During the cooling process, the temperature data can be displayed intuitively on the temperature display screen 210, and then adjusted according to the different cooling chambers 2. Different cooling fans 202 are used for independent temperature control to improve cooling uniformity. When the pellets move to the end of the conveyor belt 3, they fall onto the guide plate 206 and slide down into the inlet / outlet 205 for further cooling. At this time, the scraper blades 207 at the front end of the guide plate 206 scrape off the residual pellets on the surface of the conveyor belt 3 during discharge to prevent material adhesion. The residual pellets will merge with the normally falling pellets on the guide plate 206 and be collected through the outlet 205 after the last cooling, thus completing the cooling of the biomass fuel pellets.

[0025] like Figure 2As shown, a guide hopper 4 that fits into the feed inlet 204 is placed on the top surface of the cooling chamber 2, and a limiting plate 401 that fits into the top surface of the cooling chamber 2 is provided on the outer side of the lower end of the guide hopper 4.

[0026] Specifically, by placing a guide hopper 4 that fits the feed inlet 204 on the top surface of the cooling chamber 2, the biomass fuel pellets to be cooled can be guided into the chamber, making it convenient for workers to pick up the pellets. The limiting plate 401 set on the lower outer side of the guide hopper 4 can make the placement of the guide hopper 4 more stable.

[0027] like Figure 2 and Figure 4 As shown, a guide plate 206 extending to the bottom surface of the end of the conveyor belt 3 is provided on the inner front end of the discharge port 205.

[0028] like Figure 2 and Figure 4 As shown, the top surface of the front end of the guide plate 206 is provided with a scraper blade 207 that is inclined to the rear and upward, and the top of the scraper blade 207 is 3 to 5 mm away from the bottom surface of the conveyor belt 3.

[0029] Specifically, a guide plate 206 is provided on the inner front end of the discharge port 205. The guide plate 206 extends to the bottom surface of the end of the conveyor belt 3 to guide the particles to fall. The top surface of the front end of the guide plate 206 is provided with a scraper blade 207 that is inclined backward and upward. This blade can scrape off residual particles on the surface of the conveyor belt during discharge, prevent material adhesion, ensure the cleanliness of the conveyor belt and discharge efficiency. At the same time, the top of the scraper blade 207 is 3 to 5 mm away from the bottom surface of the conveyor belt 3 to prevent the blade from wearing down the conveyor belt 3.

[0030] like Figure 1 and Figure 3 As shown, a sliding dustproof net 208 is provided on the outside of the air inlet 201, and a placement rack 209 for the dustproof net 208 to slide up and down is provided on the outside of the cooling chamber 2.

[0031] Specifically, a sliding dustproof net 208 is placed on a mounting rack 209, and the dustproof net 208 covers the outside of the air inlet 201. While preventing dust from entering, it can be quickly pulled out for cleaning, which facilitates daily maintenance.

[0032] like Figures 1 to 4 As shown, a temperature display screen 210 connected to a temperature sensor 203 is provided on the rear side of the cooling chamber 2.

[0033] Specifically, by setting up a temperature display screen 210 connected to the temperature sensor 203, staff can intuitively display temperature data, and improve cooling uniformity by coordinating independent temperature control of different cooling chambers 2 and different cooling fans 202.

[0034] like Figures 1 to 4As shown, mounting alignment blocks 211 are symmetrically arranged on the upper ends of the left and right sides of the cooling chamber 2. The top of the mounting alignment blocks 211 is higher than the top surface of the cooling chamber 2. Alignment clips 212 corresponding to the positions of the mounting alignment blocks 211 are arranged on the lower ends of the left and right sides of the cooling chamber 2. Base alignment blocks 101 that cooperate with the alignment clips 212 are arranged on both sides of the base 1.

[0035] Specifically, by setting up the alignment block 211 and the matching alignment clamp 212 and base alignment block 101, the cooling chamber 2 can be accurately and quickly aligned when stacked and placed, thus improving installation efficiency.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, an observation window 213 is provided on the front side of the cooling chamber 2.

[0037] Specifically, by setting an observation window 213 on the front side of the cooling chamber 2, staff can observe the working conditions inside the cooling chamber 2 in real time, and promptly detect and handle machine malfunctions, thereby improving work efficiency.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid cooling device for biomass pellets, comprising a base (1), characterized in that, The base (1) is provided with stackable cooling chambers (2). The front end of the cooling chamber (2) is provided with a conveyor belt (3) that moves backward. The upper ends of the left and right sides of the cooling chamber (2) are evenly provided with air inlets (201). The air inlets (201) are provided with separately controlled cooling fans (202). Temperature sensors (203) are symmetrically arranged on the front and back of the top of the cooling chamber (2). The front side of the top of the cooling chamber (2) is provided with a feed inlet (204). The rear side of the bottom of the cooling chamber (2) is provided with a discharge outlet (205). The feed inlet (204) and the discharge outlet (205) are symmetrically arranged on the horizontal plane. The cooling chambers (2) together with the internal components are symmetrically stacked.

2. The rapid cooling device for biomass pellets according to claim 1, characterized in that, The top surface of the cooling chamber (2) is provided with a guide hopper (4) that fits the feed inlet (204), and the lower outer side of the guide hopper (4) is provided with a limiting plate (401) that fits the top surface of the cooling chamber (2).

3. The rapid cooling device for biomass pellets according to claim 1, characterized in that, The inner front end of the discharge port (205) is provided with a guide plate (206) extending to the bottom surface of the end of the conveyor belt (3).

4. The rapid cooling device for biomass pellets according to claim 3, characterized in that, The top surface of the front end of the guide plate (206) is provided with a scraper blade (207) that is inclined to the rear and upward. The top end of the scraper blade (207) is 3 to 5 mm away from the bottom surface of the conveyor belt (3).

5. A rapid cooling device for biomass pellets according to claim 1, characterized in that, A sliding dustproof net (208) is provided on the outside of the air inlet (201), and a placement rack (209) for the dustproof net (208) to slide up and down is provided on the outside of the cooling chamber (2).

6. The rapid cooling device for biomass pellets according to claim 1, characterized in that, A temperature display screen (210) connected to a temperature sensor (203) is provided on the rear side of the cooling chamber (2).

7. The rapid cooling device for biomass pellets according to claim 1, characterized in that, The upper ends of the left and right sides of the cooling chamber (2) are symmetrically provided with mounting alignment blocks (211). The top of the mounting alignment blocks (211) is higher than the top surface of the cooling chamber (2). The lower ends of the left and right sides of the cooling chamber (2) are provided with alignment clips (212) corresponding to the position of the mounting alignment blocks (211). The sides of the base (1) are provided with base alignment blocks (101) that cooperate with the alignment clips (212).

8. A rapid cooling device for biomass pellets according to claim 1, characterized in that, An observation window (213) is provided on the front side of the cooling chamber (2).

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