Continuous drying apparatus for fuel pellets

Abstract

This utility model relates to the field of testing equipment technology, and in particular to a continuous fuel particle drying device. Based on a drum-type dryer, the sampled fuel particles are dried. A dust-suppressing feeding device is connected to the inlet of the dryer, which is then connected to a crushing system. A dust-suppressing discharge device is connected to the outlet of the dryer, which is then connected to a particle size detection device via a discharge conveyor belt, thus obtaining a continuous drying device. This allows the material to be tested for particle size to be dried quickly and continuously, preventing fuel particles from clumping together.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a continuous fuel pellet drying device. Background Technology

[0002] During the production of fuels such as coal and coke, crushing is carried out to obtain target fuel particles that meet the particle size requirements. Particle size detection is performed during the crushing process. When the moisture content of the particles is high, the particles will clump together, making it impossible to accurately determine the crushed particle size. The raw materials are dried before or after crushing.

[0003] Existing drying equipment mainly includes dryers, including drum dryers, where materials move along the drying drum and are dried. They are highly efficient, have high sealing performance, and can achieve continuous operation.

[0004] There is a need for a continuous drying device based on a dryer to continuously dry fuel particles that require particle size detection. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a continuous fuel pellet drying device.

[0006] This utility model is achieved through the following technical solution: a continuous fuel pellet drying device, including a dryer, wherein the feed inlet of the dryer is connected to a dust-suppressing feed device, the dust-suppressing feed device includes a feed cover, the feed cover has a feed opening on its side, the discharge outlet of the dryer is connected to a dust-suppressing discharge device, the dust-suppressing discharge device includes a discharge cover, the discharge cover is connected to a discharge conveyor belt.

[0007] Furthermore, the feed hood includes a connecting seat, a plurality of columns are provided on the upper end of the connecting seat, a side sealing plate is provided between the sides of the plurality of columns, an upper sealing plate is provided between the upper ends of the plurality of columns, and a dust removal pipe is connected to the upper sealing plate.

[0008] Furthermore, an upper baffle is provided at the upper end of the feed opening, the upper baffle is connected to the upper sealing plate, and a lower baffle is provided at the lower end of the feed opening, the lower baffle is connected to the connecting seat.

[0009] Furthermore, the discharge port of the dryer is inserted into the discharge cover, and an extension cover is provided at the upper end of the discharge cover, extending above the discharge port of the dryer. A second dust removal pipe is provided on the side of the discharge cover.

[0010] Furthermore, the discharge cover is also connected to a sealing cover plate that cooperates with the discharge conveyor belt, and the sealing cover plate is connected to an airflow cooling device.

[0011] Furthermore, the airflow cooling device includes an air inlet located at the lower end of the sealing cover, a filter screen is provided at the air inlet, and an air outlet pipe is provided at the upper end of the sealing cover, the air outlet pipe being connected to a negative pressure fan.

[0012] The beneficial effects of this utility model are as follows: Based on the drying of sampled fuel particles by a drum dryer, a dust-suppressing feeding device is connected at the inlet of the dryer, which is then connected to the crushing system. A dust-suppressing discharge device is connected at the outlet of the dryer, which is then connected to the particle size detection equipment via the discharge conveyor belt, thus obtaining a continuous drying device. This allows the material to be tested for particle size to be dried quickly and continuously, preventing the fuel particles from clumping together. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Example 1;

[0014] Figure 2 This is a schematic diagram of the dryer structure;

[0015] Figure 3 This is a schematic diagram of the dust suppression feeding device.

[0016] Figure 4 This is a schematic diagram of the dust suppression and discharge device.

[0017] Figure 5 This is a schematic diagram of the structure of Example 2.

[0018] The components include: 1. Dryer; 2. Dust-suppressing feeding device; 201. Connecting seat; 202. Column; 203. Side sealing plate; 204. Upper sealing plate; 205. Dust removal pipe one; 206. Upper baffle; 207. Material drop port; 208. Lower baffle; 3. Dust-suppressing discharge device; 301. Discharge cover; 302. Extension cover; 303. Dust removal pipe two; 4. Sealing cover plate; 401. Straight discharge section; 402. Inclined rising section; 403. Straight feeding section; 404. Material receiving port; 405. Air inlet; 406. Air outlet pipe; 5. Discharge conveyor belt. Detailed Implementation

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Example 1

[0022] like Figure 1-4 As shown, a continuous fuel pellet drying device is used to dry sampled fuel pellets. The device includes a dryer 1, which is a drum-type dryer. The fuel pellets move along the drying drum and are dried. The device is highly efficient and has a high sealing performance. It can also achieve continuous operation. The fuel pellets are further dispersed during the drying process.

[0023] The feed inlet of the dryer 1 is connected to a dust-suppressing feed device 2. The dust-suppressing feed device 2 includes a feed cover with a feed opening on its side. The feed cover includes a connecting seat 201, which is square and welded from angle steel. It mates with the feed inlet of the dryer 1 and is bolted to the feed inlet of the dryer 1. Multiple columns 202 are connected to the upper end of the connecting seat 201. In this embodiment, there are three columns 202, all made of angle steel, distributed at three corners away from the feed opening. Two columns 202 form two sides of the feed opening, thus ensuring the stability of the feed opening shape. Side sealing plates 203 are fixed between the sides of the multiple columns 202, and an upper sealing plate 204 is fixed between the upper ends of the multiple columns 202. The upper sealing plate 204 is connected to a dust removal pipe 205. Connected to the negative pressure dust removal system, a semi-enclosed feeding hood is formed. A material inlet 207 is formed in the middle of the connecting seat 201. An upper baffle 206 is installed at the upper end of the feeding opening, which is connected to the upper sealing plate 204. A lower baffle 208 is located at the lower end of the feeding opening, which is connected to the connecting seat 201. The upper baffle 206 and the lower baffle 208 can form a lateral support, thereby preventing the feeding opening from deforming. The crushed fuel particles are transported to the feeding opening by a conveyor belt or a robot and poured into the feeding opening. The side sealing plate 203 and the upper sealing plate 204 prevent outward splashing. The dust is discharged outward through the dust removal pipe 205, thereby ensuring clean air near the equipment. The connecting seat 201 is connected to the feeding port of the dryer 1 by bolts, which also facilitates the adjustment of the feeding opening angle, which can be adjusted by 90° each time.

[0024] The discharge port of dryer 1 is connected to a dust-reducing discharge device 3, which includes a discharge cover 301. The discharge cover 301 is connected to a discharge conveyor belt. Specifically, the discharge port of dryer 1 is connected to a discharge chute, which is inserted into the discharge cover 301. An extension cover 302 is integrally formed on the upper end of the discharge cover 301. The extension cover 302 extends above the discharge port of dryer 1 for easy connection. A second dust removal pipe 303 is installed on the side of the discharge cover 301. The second dust removal pipe 303 is connected to a negative pressure dust removal system. Since the fuel particles discharged from the discharge port of dryer 1 are at a high temperature, some heat is also carried away during the dust discharge process through the second dust removal pipe 303.

[0025] The discharge cover 301 is also connected to a sealing cover 4 that cooperates with the discharge conveyor belt 5. The sealing cover 4 is also machined with a receiving port 404 that cooperates with the discharge cover 301. The sealing cover 4 includes a straight discharge section 401 that conforms to the shape of the discharge conveyor belt 5, an inclined rising section 402, and a straight feeding section 403. The sealing cover 4 is made of stainless steel and can dissipate heat.

[0026] Example 2

[0027] like Figure 1-5 As shown, a continuous fuel pellet drying device differs from Embodiment 1 in that the sealing cover plate 4 is connected to an airflow cooling device. The airflow cooling device includes an air inlet 405 machined at the lower end of the inclined rising section 402, a filter screen is installed at the air inlet 405, and an air outlet pipe 406 is installed at the upper end of the inclined rising section 402. The air outlet pipe 406 is connected to a negative pressure fan, thereby rapidly cooling the fuel pellets through airflow.

[0028] It is worth noting that the discharge conveyor belt 5 is made of PVC belt, which absorbs heat during the process and dissipates heat during the return process. When the material quantity is low, it can achieve the effect of cooling the material. When the material quantity is large, the discharge conveyor belt 5 can be made of metal chain plate conveyor belt to cool the fuel particles, or a composite metal mesh layer can be added to the belt body of the discharge conveyor belt 5 to cool the fuel particles.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A continuous fuel pellet drying apparatus, comprising a drum-type dryer, characterized in that, The dryer's inlet is connected to a dust-suppressing feeding device, which includes an inlet cover with an inlet opening on its side. The dryer's outlet is connected to a dust-suppressing discharge device, which includes a discharge cover and is connected to a discharge conveyor belt.

2. The continuous fuel pellet drying apparatus according to claim 1, characterized in that, The feed hood includes a connecting seat, with multiple columns at the upper end of the connecting seat. Side sealing plates are provided between the sides of the multiple columns, and an upper sealing plate is provided between the upper ends of the multiple columns. A dust removal pipe is connected to the upper sealing plate.

3. The continuous fuel pellet drying apparatus according to claim 2, characterized in that, An upper baffle is provided at the upper end of the feed opening, and the upper baffle is connected to the upper sealing plate. A lower baffle is provided at the lower end of the feed opening, and the lower baffle is connected to the connecting seat.

4. The continuous fuel pellet drying apparatus according to claim 1, characterized in that, The discharge port of the dryer is inserted into the discharge cover. An extension cover is provided at the upper end of the discharge cover, which extends above the discharge port of the dryer. A dust removal pipe is provided on the side of the discharge cover.

5. The continuous fuel pellet drying apparatus according to claim 4, characterized in that, The discharge cover is also connected to a sealing cover plate that cooperates with the discharge conveyor belt, and the sealing cover plate is connected to an airflow cooling device.

6. The continuous fuel pellet drying apparatus according to claim 5, characterized in that, The airflow cooling device includes an air inlet located at the lower end of the sealing cover, a filter screen is provided at the air inlet, and an air outlet pipe is provided at the upper end of the sealing cover, the air outlet pipe being connected to a negative pressure fan.

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