Counter-flow cooler

Abstract

The utility model relates to a reverse flow type cooler, and relates to the technical field of coolers, the reverse flow type cooler comprises a cooler body, an air inlet pipe surrounding the cooler body is arranged at an air inlet of the cooler body, the air inlet pipe is communicated with the interior of the cooler body, one side of the air inlet pipe is provided with a dust collection box body, and the dust collection box body is communicated with the interior of the cooler body. A connecting pipe is fixedly connected and communicated between the dust collection box body and the air inlet pipe, an induced draft fan is installed on the connecting pipe, dust removal cloth used for preventing dust from entering the connecting pipe is arranged in the dust collection box body, and a collecting piece used for collecting the dust blocked by the dust removal cloth is arranged in the dust collection box body. The device has the effect of reducing the influence of dust in air on the quality of granules.

Description

Technical Field

[0001] The present application relates to the technical field of coolers, and in particular to a counter-flow cooler. Background Art

[0002] In pellet production, pellets coming out of pellet presses must go through a cooling process to achieve the purpose of cooling and dehydration. In the existing equipment configuration, there are mainly counter-current, vertical and drum coolers.

[0003] The counter-flow cooler has better performance and is widely used. The counter-flow cooler is an advanced pellet feed cooling equipment. It adopts the counter-flow cooling principle, that is, the cooling air and the high-temperature material move in the opposite direction, so that the material is gradually cooled from top to bottom. This design avoids the problem of cracking on the surface of the material and the difficulty in dissipating moisture and heat in the core. The cooling effect is better than that of the traditional vertical cooler. It plays an important role in producing high-quality pellet feed, extending the storage time of pellet feed, and improving economic benefits.

[0004] In the related art, external air usually enters the counterflow cooler directly through the counterflow cooler, but dust may be attached to the gas, and the dust may be attached to the granular material, thereby affecting the product quality of the granular material. Utility Model Content

[0005] In order to reduce the impact of dust in the air on the quality of granular materials, the present application provides a counter-flow cooler.

[0006] The present application provides a counter-flow cooler adopting the following technical solution:

[0007] A countercurrent cooler comprises a cooler body, an air inlet pipe arranged around the cooler body is provided at the air inlet of the cooler body, the air inlet pipe is communicated with the interior of the cooler body, a dust collection box is provided on one side of the air inlet pipe, a connecting pipe is fixedly connected and communicated between the dust collection box and the air inlet pipe, an induced draft fan is installed on the connecting pipe, a dust removal cloth for blocking dust from entering the connecting pipe is provided in the dust collection box, and a collecting piece for collecting dust blocked by the dust removal cloth is provided in the dust collection box.

[0008] By adopting the above technical solution, the induced draft fan can be started to allow air to enter the connecting pipe through the dust collecting box. At the same time, when the air passes through the dust removal cloth, the dust removal cloth will block the dust in the air, so that most of the blocked dust falls into the collecting part. Then the air after dust removal can enter the air inlet pipe through the connecting pipe, and finally the air enters the cooler body to participate in cooling. In this way, most of the dust in the air can be filtered out by the dust removal cloth, reducing the dust in the air from entering the counterflow device body and affecting the quality of the granular material.

[0009] Optionally, the collecting member is configured as a collecting box, the upper end of the collecting box is opened and the collecting box is placed directly below the dust removal cloth, and the collecting box is slidably inserted into the dust collection box.

[0010] By adopting the above technical solution, dust particles can be collected by the collection box, and the collection box can be removed from the dust box body by sliding, so that the dust in the collection box can be cleaned regularly.

[0011] Optionally, the dust collection box includes a main box and a sealing plate, the main box is provided with a maintenance port for replacing the dust removal cloth, the sealing plate blocks the maintenance port, and the sealing plate is provided with a locking assembly for fixing the sealing plate to the maintenance port.

[0012] By adopting the above technical solution, the blocking plate can be unfixed on the main box body by adjusting the locking assembly, and then the dust removal cloth can be cleaned and maintained through the maintenance port.

[0013] Optionally, the locking assembly includes a plurality of locking bolts, and the locking bolts pass through the sealing plate and are threadedly connected to the main box body.

[0014] By adopting the above technical solution, the rod of the locking bolt can be separated from the main box body by rotating the locking bolt, thereby realizing the removal of the blocking plate from the main box body.

[0015] Optionally, the dust collection box is provided with a fixing component for fixing the dust removal cloth in the dust collection box, and the fixing component includes a fixing net fixed in the dust collection box, and a pressing net is rotatably connected to the fixing net, and the pressing net presses the dust removal cloth tightly onto the fixing net.

[0016] By adopting the above technical solution, the downward pressure net can be rotated to move the downward pressure net away from the fixed net, and then the dust removal cloth between the downward pressure net and the fixed net can be taken out and replaced.

[0017] Optionally, a positioning bolt is provided between the downward pressure net and the fixed net, and the positioning bolt passes through the downward pressure net and is threadedly connected to the main box body.

[0018] By adopting the above technical solution, the fixing between the lower pressure net and the fixed net can be achieved through the positioning bolts, thereby improving the stability of the dust removal cloth between the lower pressure net and the fixed net.

[0019] Optionally, a drying box is fixedly connected to the dust collection box and connected to the connecting pipe, and a plurality of drying boxes for containing desiccant are provided in the drying box.

[0020] By adopting the above technical solution, the air can be dried through the drying box to reduce the humidity of the air entering the counterflow device body.

[0021] Optionally, the upper end of the drying box is opened and the drying box is slidably connected in the drying box body.

[0022] By adopting the above technical solution, the drying box can be taken out from the dust collecting box by sliding, thereby replacing the desiccant in the drying box.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Most of the dust in the air can be filtered out through the dust removal cloth, reducing the dust in the air from entering the counterflow device body and affecting the quality of the granular material;

[0025] 2. The dust particles can be collected through the collection box, and the collection box can be removed from the dust box body by sliding, so as to regularly clean the dust in the collection box;

[0026] 3. The air can be dried through a drying box to reduce the humidity of the air entering the counterflow device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 It is a structural schematic diagram of the main box of an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the structure of the locking assembly of an embodiment of the present application.

[0030] In the figure, 1. cooler body; 2. air inlet pipe; 3. dust collection box; 31. main box; 311. maintenance port; 32. blocking plate; 33. locking assembly; 331. locking bolt; 4. connecting pipe; 41. induced draft fan; 5. dust removal cloth; 6. collecting piece; 7. fixing assembly; 71. fixing net; 72. pressing net; 73. positioning bolt; 8. drying box; 81. drying box; 9. dust storage tank. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0032] The embodiment of the present application is: a counter-flow cooler, referring to Figure 1The invention comprises a cooler body 1, an air inlet pipe 2 is arranged at the air inlet of the cooler body 1, and the air inlet pipe 2 is arranged around the cooler body 1. The air inlet pipe 2 is connected with the inside of the cooler body 1.

[0033] Reference Figure 1 and Figure 2 , dust collecting boxes 3 are provided on both sides of the air inlet pipe 2. The dust collecting boxes 3 are provided with air inlets away from the cooler body 1, and each dust collecting box 3 is fixedly connected to the air inlet pipe 2 and connected with a connecting pipe 4, on which an induced draft fan 41 for conveying air to the connecting pipe 4 is installed.

[0034] A dust cloth 5 for preventing dust from entering the connecting pipe 4 is arranged in the dust collecting box 3 , and a locking assembly 33 for fixing the dust cloth 5 in the dust collecting box 3 is arranged in the dust collecting box 3 .

[0035] The fixing assembly 7 includes a fixing net 71 fixedly connected to the dust collecting box 3, a pressing net 72 is arranged above the fixing net 71, and one end of the pressing net 72 is rotatably connected to the fixing net 71. The dust cloth 5 is placed between the fixing net 71 and the pressing net 72. The pressing net 72 presses the dust cloth 5 onto the fixing net 71. At the same time, in order to improve the stability of the dust cloth 5 between the pressing net 72 and the fixing net 71. A positioning bolt 73 is arranged between the pressing net 72 and the fixing net 71, and the positioning bolt 73 is located on a side away from the rotation connection between the pressing net 72 and the fixing net 71. The positioning bolt 73 passes through the pressing net 72 and is threadedly connected to the dust collecting box 3, and the nut of the positioning bolt 73 is pressed onto the upper end surface of the pressing net 72.

[0036] The positioning bolt 73 is thereby rotated to disengage the rod of the positioning bolt 73 from the dust collecting box 3, thereby canceling the fixation between the pressing net 72 and the fixing net 71. The pressing net 72 is then rotated to move away from the fixing net 71, and the dust removal cloth 5 between the pressing net 72 and the fixing net 71 is removed, and the dust removal cloth 5 is replaced.

[0037] At the same time, in order to facilitate the opening of the dust collection box 3, the dust collection box 3 includes a main box 31 and a blocking plate 32. The upper end surface of the main box 31 is provided with a maintenance port 311 for replacing the dust removal cloth 5. The blocking plate 32 blocks the maintenance port 311, and a locking assembly 33 for fixing the blocking plate 32 on the maintenance port 311 is provided on the blocking plate 32.

[0038] Reference Figure 2 and Figure 3 The locking assembly 33 includes four locking bolts 331 , which are respectively located at the four corners of the upper end of the blocking plate 32 . The locking bolts 331 pass through the blocking plate 32 and are threadedly connected to the upper end surface of the main box body 31 .

[0039] Thus, the locking bolt 331 can be rotated to make the rod of the locking bolt 331 fall off the main box body 31, thereby canceling the fixation of the blocking plate 32 on the main box body 31, and then the dust removal cloth 5 can be cleaned and maintained through the maintenance port 311.

[0040] A collecting member 6 for collecting dust blocked by the dust cloth 5 is provided in the dust collecting box 3. The collecting member 6 in this embodiment is configured as a collecting box, which is configured in a rectangular parallelepiped shape, with an opening at the upper end thereof and the collecting box placed directly below the dust cloth 5, and the collecting box is slidably inserted into the dust collecting box 3.

[0041] Therefore, when too much dust is collected in the collection box, the dust in the collection box can be cleaned by sliding the collection box out of the dust collection box body 3.

[0042] The dust collecting box 3 and the connecting pipe 4 are fixedly connected and communicated with a drying box 8, and a plurality of drying boxes 81 for containing desiccant are arranged in the drying box 8. In this embodiment, three drying boxes 81 are arranged and stacked up and down. The upper end of the drying box 81 is opened and the drying box 81 is slidably connected in the drying box 8.

[0043] Therefore, when the desiccant in the drying box 81 needs to be replaced, the drying box 81 can be slid out of the dust collecting box 3 by sliding, and then the desiccant in the drying box 81 can be replaced.

[0044] The implementation principle of the embodiment of the present application is: by starting the induced draft fan 41, air can pass through the dust collection box 3 into the connecting pipe 4. At the same time, when the air passes through the dust removal cloth 5, the dust removal cloth 5 will filter the dust in the air, so that most of the blocked dust falls into the collection box.

[0045] The dust-removed air can then enter the drying box 8, where the moisture in the air is absorbed by the desiccant on the drying box 81. The air then enters the air inlet pipe 2 through the connecting pipe 4, and finally enters the cooler body 1 to participate in cooling.

[0046] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A counter-flow cooler, comprising a cooler body (1), characterized in that: An air inlet pipe (2) arranged around the cooler body (1) is provided at the air inlet of the cooler body (1); the air inlet pipe (2) is connected to the interior of the cooler body (1); a dust collecting box (3) is provided on one side of the air inlet pipe (2); a connecting pipe (4) is fixedly connected and connected between the dust collecting box (3) and the air inlet pipe (2); an induced draft fan (41) is installed on the connecting pipe (4); a dust collecting cloth (5) for blocking dust from entering the connecting pipe (4) is provided in the dust collecting box (3); and a collecting member (6) for collecting dust blocked by the dust collecting cloth (5) is provided in the dust collecting box (3).

2. A counter-flow cooler according to claim 1, characterized in that: The collecting member (6) is configured as a collecting box, the upper end of the collecting box is opened and the collecting box is placed directly below the dust removal cloth (5), and the collecting box is slidably inserted into the dust collection box body (3).

3. A counter-flow cooler according to claim 1, characterized in that: The dust collection box (3) comprises a main box (31) and a blocking plate (32); the main box (31) is provided with a maintenance opening (311) for replacing the dust removal cloth (5); the blocking plate (32) blocks the maintenance opening (311); and the blocking plate (32) is provided with a locking assembly (33) for fixing the blocking plate (32) on the maintenance opening (311).

4. A counter-flow cooler according to claim 3, characterized in that: The locking assembly (33) comprises a plurality of locking bolts (331), wherein the locking bolts (331) pass through the blocking plate (32) and are threadedly connected to the main box body (31).

5. A counter-flow cooler according to claim 4, characterized in that: The dust collecting box (3) is provided with a fixing assembly (7) for fixing the dust removal cloth (5) inside the dust collecting box (3); the fixing assembly (7) comprises a fixing net (71) fixed inside the dust collecting box (3); a pressing net (72) is rotatably connected to the fixing net (71); the pressing net (72) presses the dust removal cloth (5) against the fixing net (71).

6. A counter-flow cooler according to claim 5, characterized in that: A positioning bolt (73) is provided between the downward pressure net (72) and the fixed net (71); the positioning bolt (73) passes through the downward pressure net (72) and is threadedly connected to the main box body (31).

7. The counter-flow cooler according to claim 1, characterized in that: A drying box (8) is fixedly connected between the dust collection box (3) and the connecting pipe (4) and is in communication with each other. A plurality of drying boxes (81) for containing desiccants are provided in the drying box (8).

8. A counter-flow cooler according to claim 7, characterized in that: The upper end of the drying box (81) is opened and the drying box (81) is slidably connected inside the drying box body (8).

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