Dust removal device for feed granulation

Abstract

The utility model discloses a dust removal device for feed granulation, which relates to the technical field of dust removal equipment and comprises a shell and an impeller mounted in the shell. An operation hole is formed in the shell, a protective shell is detachably mounted on the shell outside the operation hole, a telescopic driving part is mounted in the protective shell, a mounting plate is mounted at the tail end of the telescopic driving part, and a plurality of air nozzles are mounted on the side, close to the operation hole, of the mounting plate; the air nozzle is connected with an external air source air path through a connecting pipe; connecting pieces are installed on the inner walls, on the two sides of the operation hole, of the shell, sealing plates are rotationally installed in the connecting pieces, and torsional springs are arranged between the connecting pieces and the sealing plates. The cleaning device is ingenious in structure, safe, practical and good in cleaning effect, and the problem of safety risks caused by manual cleaning is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, and more specifically, it relates to a dust removal device for feed granulation. Background Art

[0002] After sugarcane is transported to a sugar factory for juice extraction, a large amount of bagasse will be generated. In order to avoid wasting this bagasse and reduce the transportation cost of bagasse, some sugar factories have established special feed departments to produce coarse fiber feed from this bagasse, realizing the reuse of bagasse and improving the overall efficiency of the sugar factory, killing two birds with one stone. During the process of producing feed from bagasse, the main pollution is dust pollution. Therefore, a large number of granulation dust removal fans (hereinafter referred to as fans for short) are equipped on the production line, and they are generally centrifugal fans. However, due to the long-term contact of the fans with dust, the blades of the impeller are prone to adhering to dust, especially the edges and the back sides (i.e., the sides close to the inner wall of the housing) of the blades. If not cleaned in time, it will lead to operation defects such as large vibration, ash leakage, and shaking during the operation of the fans, and the safe operation of the equipment cannot be guaranteed. Therefore, regular ash cleaning and maintenance are required. To facilitate the cleaning of the fan blades, an operation hole is generally opened on the fan housing, and a closing plate is installed in the operation hole. When cleaning is required, only the closing plate needs to be removed, and the dust on the edges and back sides can be effectively blown off by blowing air on the blades with an air gun. However, due to the installation environment of the fans, some fans are installed at high places, and some are installed close to other equipment, resulting in greater safety risks for the staff during operation. Moreover, the fans are also in a rotating state when being cleaned. Although the rotation speed is lower than the rated speed, if the staff accidentally inserts the air gun into the blade gap, it will also pose a greater safety threat to the staff. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a dust removal device for feed granulation aiming at the deficiencies of the prior art, and solve the problem of safety risks caused by manual cleaning.

[0004] A dust removal device for feed granulation described in the utility model includes a housing and an impeller installed in the housing; an operation hole is opened on the housing, and a protective housing is detachably installed on the housing outside the operation hole. A telescopic driving member is installed in the protective housing, an installation plate is installed at the end of the telescopic driving member, and a plurality of air nozzles are installed on one side of the installation plate close to the operation hole. The air nozzles are connected to an external air source through a connecting pipe; connecting members are installed on the inner walls of the housing on both sides of the operation hole, a closing plate is rotatably installed in the connecting members, and a torsion spring is provided between the connecting members and the closing plate.

[0005] Preferably, ejector rods are fixedly provided on both sides of the installation plate.

[0006] Preferably, one end of the ejector rod extends to the front of the jet nozzle, and the other end of the ejector rod extends into the protective housing.

[0007] Preferably, the end of the ejector rod close to the closing plate is of an arc structure.

[0008] Preferably, the connecting pipe is provided with a folding pipe section located in the protective housing.

[0009] Preferably, a plurality of the jet nozzles are arranged in two groups, and each group of the jet nozzles is mounted on the mounting plate through a moving structure, and a driving assembly for driving the two moving structures to reciprocate is mounted on the mounting plate.

[0010] Preferably, the moving structure includes a slider, a spring, a positioning block and a fixing plate; the slider is slidably mounted on the mounting plate, the positioning block is fixedly mounted on one side of the mounting plate, and the spring is mounted between the positioning block and the slider; a through groove is formed in the mounting plate, a connecting block is arranged below the slider and penetrates and extends below the through groove, and a fixing plate is fixedly mounted on the connecting block, and a group of jet nozzles are mounted on the fixing plate.

[0011] Preferably, the driving assembly includes a motor and a cam; the motor is fixedly mounted on the mounting plate, the cam is fixedly mounted on the driving end of the motor, and both sides of the cam are in contact connection with the two sliders respectively.

[0012] Preferably, ear plates are fixedly provided on both sides of the protective housing, and the ear plates are mounted on the housing through bolts.

[0013] Preferably, the telescopic driving member is an electric push rod or a hydraulic cylinder.

[0014] The advantages of the present utility model are as follows:

[0015] 1. A protective housing is installed at the operation hole of the housing, and a jet cleaning assembly composed of a telescopic driving member, a mounting plate and a jet nozzle is installed in the protective housing. At the same time, a closable plate that can be automatically reset is arranged at the operation hole. When cleaning the blade, the jet nozzle of the jet cleaning assembly only needs to be sent into the housing to jet-clean the blade through the jet nozzle. When not in need of cleaning, the closable plate closes the operation hole to prevent dust from entering the protective housing, thereby solving the problem of safety risks caused by manual cleaning and realizing automatic cleaning of the blades of the dust removal device.

[0016] 2. Through the arrangement of the moving structure and the driving assembly, the two groups of jet nozzles can reciprocate, so as to achieve a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front structural schematic diagram of the dust removal device of the present utility model;

[0018] Figure 2 Schematic diagram of the first internal structure of the dust removal device of the present utility model;

[0019] Figure 3 Schematic diagram of the second internal structure of the dust removal device of the present utility model;

[0020] Figure 4 is Figure 3 Enlarged structure schematic diagram of part A in

[0021] Figure 5 Top view structure schematic diagram of the jet cleaning assembly of the present utility model;

[0022] Figure 6 Bottom view structure schematic diagram of the jet cleaning assembly of the present utility model;

[0023] Figure 7 is Figure 5 Schematic diagram of the sectional structure at B - B in

[0024] Wherein: 1 - support, 2 - transmission mechanism, 3 - housing, 4 - impeller, 5 - ear plate, 6 - protective housing, 7 - connecting piece, 8 - closing plate, 9 - telescopic driving piece, 10 - mounting plate, 11 - jet nozzle, 12 - slider, 13 - motor, 14 - ejector rod, 15 - connecting pipe, 16 - folding pipe section, 17 - connecting block, 18 - spring, 19 - fixing plate, 20 - cam, 21 - through groove, 22 - positioning block. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Referring to Figures 1-7 , a dust removal device for feed granulation of the present utility model includes a support 1, a transmission mechanism 2, a housing 3, and an impeller 4 installed in the housing 3. An operation hole is provided on the housing 3, and a protective housing 6 is detachably installed on the housing 3 outside the operation hole. Specifically, ear plates 5 are fixedly provided on both sides of the protective housing 6, and the ear plates 5 are installed on the housing 3 through bolts, so as to facilitate the disassembly and assembly of the protective housing 6 and the jet cleaning assembly installed in the protective housing 6, and facilitate the maintenance and repair thereof. The jet cleaning assembly in the protective housing 6 will be introduced below.

[0027] A telescopic driving member 9 is installed in the protective shell 6, and an installation plate 10 is installed at the end of the telescopic driving member 9, which is used to drive the movement of the installation plate 10 so that it can extend into or out of the shell 3. In this embodiment, the telescopic driving member 9 is an electric push rod. Moreover, to avoid the contact between the jet nozzle 11 and the edge of the impeller 4, when the electric push rod is extended to the maximum, there is still a safety distance between the jet nozzle 11 and the edge of the impeller 4. A plurality of jet nozzles 11 are installed on one side of the installation plate 10 close to the operation hole, and the jet nozzles 11 are connected to the external air source air path through a connecting pipe 15. Among them, the connecting pipe 15 is provided with a folding pipe section 16 located in the protective shell 6 to adapt to the extension / retraction of the jet nozzle 11 into / from the shell 3. Connecting members 7 are installed on the inner walls of the shell 3 on both sides of the operation hole, and a closing plate 8 is rotatably installed in the connecting members 7. When the two closing plates 8 are closed, the operation hole can be closed. In addition, both ends of the closing plate 8 are set as semi-circular structures, so that there is no interference problem with other parts during the rotation of the closing plate 8, and at the same time, effective contact can be formed when the two closing plates 8 are closed. A torsion spring is provided between the connecting member 7 and the closing plate 8. Through the setting of the torsion spring, when the jet cleaning assembly is removed from the inside of the shell 3, the two closing plates 8 can automatically rotate and reset under the action of the torsion spring, so as to realize the closing of the operation hole. With such a setting, when cleaning the blades of the impeller 4, the jet nozzle 11 can be pushed into the shell 3 by the electric push rod, and after opening the external air source, gas can be ejected through the jet nozzle 11 to clean the blades, solving the problem of safety risks caused by manual cleaning.

[0028] When the electric push rod pushes the jet nozzle 11 into the shell 3, the jet nozzle 11 needs to push open the closing plate 8. However, during this process, there is a great risk of damage to the jet nozzle 11. Therefore, ejector rods 14 are fixedly provided on both sides of the installation plate 10 in this embodiment. One end of the ejector rod 14 extends to the front of the jet nozzle 11. When the electric push rod pushes the jet nozzle 11 into the shell 3, it is the ejector rod 14 that contacts the closing plate 8 and pushes it open, thus avoiding the contact between the jet nozzle 11 and the closing plate 8 and effectively protecting the jet nozzle 11. In addition, considering that the closing plate 8 has the ability to automatically reset under the action of the torsion spring, the other end of the ejector rod 14 extends towards the inside of the protective shell 6. As Figure 3 shown, after the jet nozzle 11 extends into the shell 3, there is still an interference position between the ejector rod 14 and the closing plate 8, so that the ejector rod 14 still blocks the closing plate 8 to prevent it from automatically resetting.

[0029] In this embodiment, the end of the ejector rod 14 close to the closing plate 8 is an arc structure, which can effectively reduce the friction at the contact position between the ejector rod 14 and the closing plate 8 and reduce the wear of both.

[0030] During the process of manually cleaning the blades, the staff often move the water spray gun back and forth to improve the cleaning effect. Therefore, in this embodiment, in order to improve the automatic cleaning effect of the air jet cleaning component, the following improvements are also made.

[0031] The multiple air jet nozzles 11 are set into two groups. Each group of air jet nozzles 11 is installed on the mounting plate 10 through a moving structure. A driving component for driving the two moving structures to reciprocate is installed on the mounting plate 10. When the driving component drives the two moving structures and the air jet nozzles 11 thereon to move, the two groups of air jet nozzles 11 will reciprocate, achieving a better cleaning effect. Among them, the air jet nozzles 11 on the two moving structures are arranged in a staggered manner to further improve the cleaning effect.

[0032] Specifically, the moving structure includes a slider 12, a spring 18, a positioning block 22 and a fixing plate 19. The slider 12 is slidably installed on the mounting plate 10. The positioning block 22 is fixedly installed on one side of the mounting plate 10. The spring 18 is installed between the positioning block 22 and the slider 12, realizing the automatic reset of the slider 12. A through groove 21 is formed on the mounting plate 10. A connecting block 17 is provided below the slider 12 and extends through and below the through groove 21. A fixing plate 19 is fixedly installed on the connecting block 17. A group of air jet nozzles 11 is installed on the fixing plate 19. The driving component of this embodiment includes a motor 13 and a cam 20. The motor 13 is fixedly installed on the mounting plate 10. The cam 20 is fixedly installed on the driving end of the motor 13. The two sides of the cam 20 are respectively in contact with the two sliders 12. When the most protruding end of the cam 20 contacts one of the sliders 12, the spring 18 connected to this slider 12 is in a compressed state, while the spring 18 corresponding to the other slider 12 is in a natural extended state. When the motor 13 operates, it will drive the cam 20 to rotate. Among them, the compressed spring 18 is released, and this slider 12 slides under the spring force of the spring 18, while the other slider 12 moves under the push of the cam 20 and compresses the spring 18 connected to it. The two sliders 12 move in the same direction. In this way, the reciprocating movement of the slider 12 and the fixing plate 19 and the air jet nozzles 11 connected thereto can be formed.

[0033] Working principle of the utility model: When it is necessary to clean the blades on the impeller 4, after the impeller 4 rotates at a low speed, start the electric push rod to send the jet cleaning assembly into the housing 3. During this process, the ejector rod 14 first contacts the closing plate 8 and pushes the closing plate 8 open as the electric push rod advances. When the electric push rod stops moving, the jet nozzle 11 reaches the cleaning position outside the impeller 4. At this time, compressed gas is sent into the jet nozzle 11 through an external air source for spraying, so that it sprays on the blades to perform jet cleaning on them; at the same time, power is supplied to the motor 13 to drive the cam 20 to rotate. The cooperation of the rotating cam 20 and the spring 18 drives the two sliders 12 to reciprocate, thereby driving the jet nozzle 11 on the fixing plate 19 to also reciprocate, achieving the purpose of improving the cleaning effect on the blades.

[0034] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. Any equivalent changes or modified changes completed under the technical spirit prompted by the utility model shall fall within the scope of the patent covered by the utility model.

Claims

1. A dust removal device for feed pelleting, comprising a housing (3) and an impeller (4) installed in the housing (3), wherein an operating hole is provided on the housing (3), characterized in that: A protective shell (6) is detachably mounted on the shell (3) outside the operating hole, a telescopic driving member (9) is mounted in the protective shell (6), a mounting plate (10) is mounted at the end of the telescopic driving member (9), a plurality of air nozzles (11) are mounted on the side of the mounting plate (10) close to the operating hole, and the air nozzles (11) are connected to an external air source through a connecting pipe (15); connecting members (7) are mounted on the inner walls of the shell (3) on both sides of the operating hole, a closing plate (8) is rotatably mounted in the connecting member (7), and a torsion spring is provided between the connecting member (7) and the closing plate (8).

2. A dust removal device for feed pelleting according to claim 1, characterized in that: Push rods (14) are fixedly provided on both sides of the mounting plate (10).

3. A dust removal device for feed pelleting according to claim 2, characterized in that: One end of the push rod (14) extends to the front of the air nozzle (11), and the other end of the push rod (14) extends into the interior of the protective shell (6).

4. A dust removal device for feed pelleting according to claim 2, characterized in that: One end of the push rod (14) close to the closing plate (8) is an arc-shaped structure.

5. A dust removal device for feed pelleting according to claim 1, characterized in that: The connecting pipe (15) is provided with a folded pipe section (16) located in the protective shell (6).

6. A dust removal device for feed pelleting according to claim 1, characterized in that: The plurality of air nozzles (11) are arranged in two groups, and each group of the air nozzles (11) is mounted on a mounting plate (10) via a movable structure, and a driving assembly for driving the two movable structures to reciprocate is mounted on the mounting plate (10).

7. A dust removal device for feed pelleting according to claim 6, characterized in that: The movable structure comprises a slider (12), a spring (18), a positioning block (22) and a fixed plate (19); the slider (12) is slidably mounted on the mounting plate (10), the positioning block (22) is fixedly mounted on one side of the mounting plate (10), and the spring (18) is mounted between the positioning block (22) and the slider (12); a through slot (21) is provided on the mounting plate (10), a connecting block (17) is provided below the slider (12) and passes through and extends to the bottom of the through slot (21), a fixed plate (19) is fixedly mounted on the connecting block (17), and a group of air nozzles (11) are mounted on the fixed plate (19).

8. A dust removal device for feed pelleting according to claim 7, characterized in that: The driving assembly comprises a motor (13) and a cam (20); the motor (13) is fixedly mounted on a mounting plate (10), the cam (20) is fixedly mounted on a driving end of the motor (13), and two sides of the cam (20) are respectively in contact with and connected to two sliders (12).

9. A dust removal device for feed pelleting according to claim 1, characterized in that: Ear plates (5) are fixedly provided on both sides of the protective shell (6), and the ear plates (5) are mounted on the shell (3) by means of bolts.

10. A dust removal device for feed pelleting according to claim 1, characterized in that: The telescopic driving member (9) is an electric push rod or a hydraulic cylinder.

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