Pneumatic bulldozing device for drying kiln and drying kiln

Abstract

The utility model belongs to the field of material transportation and transfer in the raw material production industry, and particularly relates to a pneumatic push rake device for a drying kiln and the drying kiln. The pneumatic bulldozing device is arranged on the inner side of a feeding chute of the drying kiln and comprises an air cylinder, a telescopic rod and a push plate, one end of the telescopic rod is connected with the air cylinder and can be driven by the air cylinder, the other end of the telescopic rod is connected with the push plate, and the push plate is fixedly connected with the telescopic rod in a non-perpendicular mode. The side edge of the push plate is attached to the inner wall of the feeding chute, and the included angle between the push plate and the inner wall is 75-85 degrees. According to the device, accumulated materials can be better dredged, so that the purposes of continuous feeding and continuous production are achieved, the use effect is good after implementation, and the operation efficiency is improved; a large amount of manpower and production halt overhaul time are saved, cost consumption is reduced, and large economic benefits and social benefits can be created.

Description

Technical Field

[0001] The utility model belongs to the field of material transportation and transfer in the raw material production industry, and specifically relates to a pneumatic push rake device for a drying kiln and a drying kiln. Background Art

[0002] At present, in the process of raw material transportation in the drying kiln in the raw material drying industry, the drying kiln receiving port is often blocked due to excessive moisture content of the material. In particular, the current country pays attention to environmental protection, and mining enterprises must carry out dust reduction production through water selection, so wet ore output is inevitable. Here, it is necessary to use the production process of drying kilns to dry wet ore to achieve the purpose of drying ore. Therefore, the blocking failure of the drying kiln receiving port due to excessive moisture content of the material during the transportation of the drying kiln raw materials must be solved. The utility model solves this problem by designing a pneumatic push rake, which is a device that realizes material dredging through a cylinder and a workpiece push rake. After nearly a year of use and actual application on site, the original feed port is frequently blocked due to excessive material humidity, excessive moisture content, and poor fluidity. Manual dredging is difficult, and production time is delayed for a long time, resulting in failure shutdown, which seriously affects production. In addition, handling failures will cause more material leakage, and can only rely on manual cleaning, which is time-consuming and labor-intensive, and also increases the safety risks and operational difficulty of operators. By designing and installing a pneumatic push rake, the failure time of the drying kiln material receiving port being blocked and the impact on production are greatly reduced, and the occurrence of blockage of the material receiving port is avoided. The utility model is safe and reliable. The utility model can be applied to the transportation and transshipment of a large number of raw materials in the raw material production industry. The operation is convenient and simple, and the inspection and maintenance are convenient. It can save a lot of manpower and production stoppage time, reduce costs, and create greater economic and social benefits. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a pneumatic push-rake device for clearing blockage faults in the process of material transportation and transfer, to solve the problems of blockage, obstruction, leakage, inconvenient operation and difficult cleaning of the material transfer channel, and to solve the blockage fault problems and safety hazards of operators in the process of material transportation and transfer.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] The first aspect of the utility model provides a pneumatic push-rake device for a drying kiln, which is arranged on the inner side of a feed chute of the drying kiln. The pneumatic push-rake device comprises a cylinder, a telescopic rod, and a push plate. One end of the telescopic rod is connected to the cylinder, and the other end of the telescopic rod is connected to the push plate. The push plate is fixedly connected to the telescopic rod in a non-vertical manner. The angle between the push plate and the inner wall of the chute is 75 to 85 degrees, and the bottom of the push plate is in contact with the bottom of the inner wall of the feed chute.

[0006] In some embodiments of the present invention, the included angle between the push plate and the inner wall of the chute is 80 degrees.

[0007] In some embodiments of the utility model, the push plate includes an end face, which is a side of the push plate for pushing and raking materials. The end face is provided with one or more first clamping grooves, which clamp one or more thorn-like structures, and the thorn-like structures are detachably connected to the end face by bolts.

[0008] In some embodiments of the utility model, the push plate includes a back side, which is opposite to the side of the push plate that pushes and raks materials. The back side is provided with one or more second clamping grooves, and the back side is clamped with a fixing block, one end of the fixing block is against the side of the telescopic rod, and the other end is against the back of the push plate, and the fixing block is detachably connected to the second clamping groove by bolts.

[0009] In some embodiments of the present invention, the side cross-section of the push plate is a rectangle or a trapezoid whose bottom side is longer than the top side.

[0010] In some embodiments of the utility model, the interior of the telescopic rod is hollow, and the telescopic rod includes a telescopic connecting rod, a connecting piece and an extension rod. The interior of the telescopic connecting rod is hollow and matches and is snap-fitted with the extension rod. The telescopic connecting rod and the extension rod are fixed by the connecting piece, and one end of the extension rod is connected to the push plate.

[0011] In some embodiments of the present invention, the bottom of the push plate further includes a protective cover, which is a long strip structure with grooves. The bottom of the push plate can be adaptably inserted into the protective cover, and the push plate and the protective cover are detachably connected.

[0012] In some embodiments of the present invention, the push plate includes a back side, which is opposite to the side of the push plate that pushes and raks materials, and the back side is connected to a vibration motor.

[0013] In some embodiments of the utility model, the push plate includes a protective plate and an inner plate, one side of the inner plate is fixedly connected to the telescopic rod, and the other side is covered with the protective plate, the inner plate includes one or more first through holes, the protective plate includes one or more second through holes, the first through holes correspond to the second through holes, and the protective plate is bolted to the inner plate through the second through holes and the first through holes.

[0014] The second aspect of the utility model provides a drying kiln, comprising a wet ore bin, a feed chute, a drying furnace body and the aforementioned pneumatic pusher and rake device, wherein the pneumatic pusher and rake device is installed inside the feed chute, and the feed chute is inclined at 50 to 70 degrees to the horizontal plane.

[0015] Beneficial effects of the utility model:

[0016] The pneumatic pusher and rake device of the utility model has a simple structure, and its push plate is at a specific angle, which can better dredge the accumulated materials, solve the problems of blockage, blocking, leakage, inconvenient operation and difficult cleaning of the material transfer channel, and has a long service life, low failure rate, economical and applicable, convenient and reliable operation and maintenance. It can save a lot of manpower and production stoppage time, reduce costs, and create greater economic and social benefits.

[0017] The utility model summarizes various aspects of the embodiment and should not be used to limit the claims. Other embodiments can be conceived based on the technology described herein, which will be obvious to those skilled in the art after studying the following drawings and specific embodiments, and these embodiments are intended to be included in the scope of the utility model.

[0018] These and other aspects, objects and features of the present invention will be understood and appreciated by those skilled in the art after studying the following specification, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] in:

[0021] Figure 1 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0022] Figure 2 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0023] Figure 3 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0024] Figure 4 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0025] Figure 5 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0026] Figure 6 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0027] Figure 7 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0028] Figure 8 Shown is a schematic diagram of a pneumatic push-rake device used in a drying kiln in some embodiments of the utility model;

[0029] Fig. 9 Shown is a bottom view of a push plate of a pneumatic push rake device for a drying kiln in some embodiments of the utility model;

[0030] Fig.10a It is a schematic diagram showing the installation position and use status of the pneumatic push rake device used in the drying kiln in some embodiments of the utility model;

[0031] Fig.10b It is a schematic diagram showing the installation position and use status of the pneumatic push rake device used in the drying kiln in some embodiments of the utility model;

[0032] Fig.10c It is a schematic diagram showing the installation position and use status of the pneumatic push rake device used in the drying kiln in some embodiments of the utility model;

[0033] Reference numerals

[0034] 1. Feed chute; 2. Cylinder; 3. Telescopic rod; 301. Telescopic connecting rod; 302. Connecting piece; 303. Extension rod; 4. Push plate; 401. Thorn-shaped structure; 402. First clamping groove; 403. Fixing block; 404. Second clamping groove; 405. Protective cover; 406. Vibration motor; 407. Inner plate; 408. Protective plate. DETAILED DESCRIPTION

[0035] Embodiments of the present utility model are described below. However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various alternative forms. The drawings are not necessarily drawn to scale; certain features may be exaggerated or minimized to show the details of specific components. Therefore, the specific structural and functional details disclosed in the present utility model should not be interpreted as restrictive, but merely as a representative basis for teaching those skilled in the art to use the present utility model in various ways. As will be understood by those skilled in the art, the various features shown and described with reference to any one of the drawings may be combined with the features shown in one or more other drawings to produce embodiments that are not explicitly shown or described. The combination of the features shown provides representative embodiments for typical applications. However, various combinations and modifications of features consistent with the teachings of the present utility model may be desirable for certain specific applications or embodiments.

[0036] In addition, in the present invention, relational terms such as first and second, etc. are used only to distinguish one entity or action from another entity or action, and do not necessarily require or imply any actual such relationship or order between these entities or actions. The terms "include", "comprises", or any other variation thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but may also include elements that are not explicitly listed or inherent to these processes, methods, articles, or apparatuses.

[0037] like Figure 1 As shown, the first aspect of the utility model provides a pneumatic push-rake device for a drying kiln, the pneumatic push-rake device is arranged on the inner side of a feed chute 1 of the drying kiln, the pneumatic push-rake device comprises a cylinder 2, a telescopic rod 3, and a push plate 4, one end of the telescopic rod 3 is connected to the cylinder 2 and can be driven by the cylinder 2, the other end of the telescopic rod 3 is connected to the push plate 4, the push plate 4 is fixedly connected to the telescopic rod 3 in a non-vertical manner, and the side edge of the push plate 4 is in contact with the inner wall of the feed chute 1 and is 75 to 85 degrees thereto.

[0038] In the prior art, the dry kiln feed chute 1 is clogged due to the high moisture content of the raw materials, the high viscosity of the materials, and the poor fluidity of the materials, which adhere to the surrounding areas of the chute. In order to overcome the above problems and clear the materials in time, the utility model provides a pneumatic push-rake device. At present, the materials in the dry kiln feed chute 1 are generally powdery. When the materials are damp and blocked, in order to better apply force to the materials and better disperse the resistance of the materials during the operation of the push-rake, the utility model tilts the push plate 4 of the pneumatic push-rake device so that the push plate 4 is fixedly connected to the telescopic rod 3 in a non-vertical manner, and the side edge of the push plate 4 is in contact with the inner wall of the feed chute 1 and the push plate 4 is 75 to 85 degrees with the inner wall, so that the wet materials can be better unloaded and the feed chute 1 can be cleared.

[0039] In some embodiments of the present invention, the push plate 4 is at an angle of 80 degrees to the inner wall.

[0040] Figures 10a to 10c The schematic diagram of the installation position and environment of the pneumatic push rake device used in the drying kiln in some embodiments of the utility model is shown. Figures 10a to 10c It can be seen that the drying kiln feed chute 1 is at a certain angle relative to the horizontal plane. In some embodiments of the utility model, the drying kiln feed chute 1 is 50 to 70 degrees relative to the horizontal plane, generally 60 degrees. The material is accumulated in the inclined drying kiln feed chute 1, and the push plate 4 is pushed along the angle of the feed chute 1. In order to better avoid the resistance between the material and the push plate 4, the angle between the push plate 4 and the inner wall of the feed chute 1 is set to 80 degrees, which can minimize the resistance from the material.

[0041] like Figure 2As shown, in some embodiments of the present invention, the push plate 4 includes an end surface, which is a side of the push plate 4 that pushes and raks the material. Fig. 9 As shown, the end surface is provided with one or more first clamping grooves 402, and the thorn-shaped structure 401 is detachably connected to the end surface by bolts.

[0042] If the material is accumulated in the feed chute 1 for a long time, it is easy to adhere to the bottom of the feed chute 1 of the drying kiln after being wet and hardened and dried. When the material is seriously hardened after drying, the thorn-like structure 401 on the push plate 4 can crush the hardened material after drying from the outside, and the material is pushed into the drying kiln after being crushed. In the utility model, the thorn-like structure 401 can be a conical structure, a needle structure, or other structures with a pointed end.

[0043] In order to better fix the push plate 4 and prevent it from angular deviation during long-term use, in some embodiments of the present invention, as Figure 3 As shown, the push plate 4 includes a back side, which is opposite to the side of the push plate 4 that pushes and raks the material. The back side is provided with one or more second clamping grooves 404, and the back side is clamped with a fixing block 403. One end of the fixing block 403 abuts against the side of the telescopic rod 3, and the other end abuts against the back side of the push plate 4. The fixing block 403 is detachably connected to the second clamping groove 404 by bolts.

[0044] In the present invention, the edge of the fixing block 403 is provided with an arc-shaped structure, which can more firmly abut against the side of the telescopic rod 3 and disperse the force exerted on the push plate 4. Figure 3 The structure of the fixed block 403 is shown in FIG.

[0045] Since materials often block the chute channel during the production process, in some embodiments of the utility model, such as Figure 4 As shown, the side cross-section of the push plate 4 is set to be a rectangle or a trapezoid with a bottom side longer than the top side. When the blockage is serious, in order to disperse the force of the material on the device and to protect the push plate 4 from deformation, the push plate 4 is set to be a trapezoid with a bottom side longer than the top side, such as Figure 4 As shown, the device of the utility model can be applied to the situation where the material blockage is serious.

[0046] In order to adapt to the different lengths of the feed chute 1, in some embodiments of the present invention, as Figure 5As shown, the interior of the telescopic rod 3 is hollow, and the telescopic rod 3 includes a telescopic connecting rod 301, a connecting piece 302 and an extension rod 303. The interior of the telescopic connecting rod 301 is hollow and matches and is connected to the extension rod 303 and fixed by the connecting piece 302. One end of the extension rod 303 is connected to the push plate 4. A piston structure is arranged inside the cylinder, and the piston structure divides the inside of the cylinder into an air intake part and a movable part, and the two parts are airtight. The end of the telescopic connecting rod 301 is fixedly connected to one side of the movable part of the piston structure of the cylinder. An air intake pipeline is arranged on the top of the cylinder, and the air intake pipeline is connected to an air pump or other air intake device. An air intake valve is arranged in the middle of the air intake pipeline. When the air intake valve is opened, gas enters the air intake part, and the volume of the air intake part expands, pushing the piston structure to squeeze the movable part, driving the telescopic connecting rod 301 to move in the squeezing direction. When it is necessary to drive the telescopic connecting rod 301 to contract, the air intake pipeline is connected to a negative pressure device, the valve is opened, and the air pump extracts the gas in the cylinder, so that the volume of the air intake part is reduced. According to the principle of atmospheric pressure, the volume of the movable part becomes larger at this time, driving the telescopic connecting rod 301 to move in the direction of exhaust. At the same time, the setting of the extension rod 303 can prevent the high temperature inside the drying kiln from damaging the cylinder 2 and causing the cylinder 2 seal to leak. It greatly reduces the downtime of equipment failure and improves operating efficiency; saves a lot of manpower and production suspension and maintenance time, and reduces cost consumption.

[0047] In some embodiments of the present invention, Figure 6 As shown, in order to prevent the side edge of the push plate 4 from being worn, a protective cover 405 is also provided on the push plate 4. The protective cover 405 is a long strip structure with grooves. The side edge of the push plate 4 can be adaptively inserted into the protective cover 405, and the push plate 4 and the protective cover 405 are detachably connected. When the function of the protective cover 405 is to prevent the side edge of the push plate 4 from being worn, the protective cover 405 is generally made of a wear-resistant rigid material. When the material in use contains fine wet particles, in order to better remove the material residue, the protective cover 405 can be made of a wear-resistant flexible material, such as wear-resistant rubber, so that the fine material residue can be better scraped away.

[0048] If the material is seriously blocked, it is difficult to push it out at once by the thrust of the device alone. Figure 7 As shown, in some embodiments of the present invention, the push plate 4 includes a back side, which is opposite to the side of the push plate 4 that pushes and raks the material, and the back side is connected to a vibration motor 406. The vibration motor 406 can vibrate and crush the material, and the auxiliary device can better clean the chute. The connection method of the vibration motor 406 is not limited by the present invention. A slot can be set on the push plate 4, and a clamping part can be set on the vibration motor 406. After the vibration motor 406 is clamped with the push plate 4, the vibration motor 406 is fixed by bolts.

[0049] like Figure 8As shown, in order to protect the push plate 4 of the device and to be able to replace the end face of the push plate 4 in time when it is worn, in some embodiments of the utility model, the push plate 4 is arranged to be a double-layer structure, so that the push plate 4 includes a protective plate 408 and an inner plate 407, one side of the inner plate 407 is fixedly connected to the telescopic rod 3, and the other side is covered with the protective plate 408, the inner plate 407 includes one or more first through holes, the protective plate 408 includes one or more second through holes, the first through holes correspond to the second through holes, and the protective plate 408 is bolted to the inner plate 407 through the second through holes and the first through holes.

[0050] On the other hand, in some embodiments of the present invention, a drying kiln is also provided, such as Fig.10a As shown, it includes a wet ore bin, a feed chute 1, a drying furnace body and the aforementioned pneumatic pusher and rake device, wherein the wet ore bin and the feed chute 1 are arranged at an angle and are commonly connected to the drying furnace body, the pneumatic pusher and rake device is installed on the inner side of the feed chute 1, the feed chute 1 is inclined at 50 to 70 degrees to the horizontal plane, and the wet ore bin is perpendicular to the horizontal plane.

[0051] In some embodiments of the utility model, the model of the cylinder 2 is SC125*700, and the front end of the push rake is made of a δ=10mm steel plate slightly smaller than the size of the feed chute 1, and the outer size is 250*250mm.

[0052] Figures 10a to 10b It is a schematic diagram of the installation position and use status of the utility model device. When in use, the telescopic rod 3 in the cylinder 2 is extended, so that the push plate 4 can push away the material, and then the push plate 4 is retracted to wait for the next wave of materials to enter from the silo. Specifically: Fig.10a Schematic diagram of the installation position and use state of the pneumatic push rake device of the utility model, wherein the telescopic rod 3 is in a retracted state. In some embodiments of the utility model, the telescopic connecting rod 301 in the telescopic rod is retracted in the cylinder 2, and the extension rod 303 in the telescopic rod is extended and fixedly connected to the push plate 4 in a non-vertical manner, so that the device is in a state of clearing the accumulated material in the feed chute of the drying kiln (such as Fig.10a ), then the cylinder 2 is filled with gas to push the telescopic connecting rod 301 in the telescopic rod forward, and the telescopic connecting rod 301 in the telescopic rod is in a forward state (such as Fig.10b ), clear the accumulated material in the feed chute of the drying kiln, then the cylinder 2 contracts, driving the telescopic connecting rod 301 in the telescopic rod to contract in the cylinder 2 (such as Figure 3 ), waiting for the next opportunity to clear the accumulated material (such as Fig.10c shown).

[0053] It should be particularly pointed out that the various components in the above-mentioned embodiments can be crossed, replaced, added, and deleted with each other. Therefore, the combinations formed by these reasonable arrangements and combinations should also belong to the protection scope of the present utility model, and the protection scope of the present utility model should not be limited to the embodiments.

[0054] The above are exemplary embodiments disclosed by the present utility model. The order disclosed in the above embodiments of the present utility model is only for description and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope (including claims) disclosed in the embodiments of the present utility model is limited to these examples. Various changes and modifications can be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present utility model can be described or required in individual form, unless explicitly limited to the singular, they can also be understood as multiple. A skilled technician can implement the described functions in a flexible manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present utility model.

Claims

1. A pneumatic push-rake device for a drying kiln, the pneumatic push-rake device being arranged inside a feed chute (1) of the drying kiln, the pneumatic push-rake device comprising a cylinder (2), a telescopic rod (3), and a push plate (4), characterized in that: One end of the telescopic rod (3) is connected to the cylinder (2) and can be driven by the cylinder (2), and the other end of the telescopic rod (3) is connected to the push plate (4), and the push plate (4) is non-vertically fixedly connected to the telescopic rod (3), and the side edge of the push plate (4) is in contact with the inner wall of the feed chute (1), and the push plate (4) is at an angle of 75 to 85 degrees to the inner wall.

2. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) is at an angle of 80 degrees to the inner wall.

3. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) comprises an end face, which is a side of the push plate (4) for pushing and raking materials. The end face is provided with one or more first clamping grooves (402), which clamp one or more thorn-like structures (401). The thorn-like structures (401) are detachably connected to the end face by bolts.

4. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) comprises a back side, which is opposite to the side of the push plate (4) for pushing and raking materials, and the back side is provided with one or more second clamping grooves (404). The back side is clamped with a fixing block (403), one end of the fixing block (403) is against the side of the telescopic rod (3), and the other end is against the back side of the push plate (4), and the fixing block (403) is detachably connected to the second clamping groove (404) by bolts.

5. The pneumatic push-rake device according to claim 1, characterized in that: The side cross-section of the push plate (4) is a rectangle or a trapezoid whose bottom side is longer than the top side.

6. The pneumatic push-rake device according to claim 1, characterized in that: The interior of the telescopic rod (3) is hollow, and the telescopic rod (3) comprises a telescopic connecting rod (301), a connecting piece (302) and an extension rod (303). The interior of the telescopic connecting rod (301) is hollow and is matched and snap-connected with the extension rod (303). The telescopic connecting rod (301) and the extension rod (303) are fixed by the connecting piece (302), and one end of the extension rod (303) is connected to the push plate (4).

7. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) further comprises a protective cover (405), wherein the protective cover (405) is a long strip structure with a groove, and the side edge of the push plate (4) can be adaptively inserted into the protective cover (405), and the push plate (4) and the protective cover (405) are detachably connected.

8. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) comprises a back side, which is opposite to the side of the push plate (4) that pushes and raks materials, and the back side is connected to a vibration motor (406).

9. The pneumatic push-rake device according to claim 1, characterized in that: The push plate (4) includes a protective plate (408) and an inner plate (407), one side of the inner plate (407) is fixedly connected to the telescopic rod (3), and the other side is covered with the protective plate (408), the inner plate (407) includes one or more first through holes, the protective plate (408) includes one or more second through holes, the first through holes correspond to the second through holes, and the protective plate (408) is bolted to the inner plate (407) through the second through holes and the first through holes.

10. A drying kiln, characterized in that: It comprises a wet ore bin, a feed chute (1), a drying furnace body and a pneumatic push-raking device as described in any one of claims 1 to 9, wherein the wet ore bin and the feed chute (1) are arranged at an angle and are commonly connected to the drying furnace body, the pneumatic push-raking device is installed on the inner side of the feed chute (1), the feed chute (1) is inclined at 50 to 70 degrees to the horizontal plane, and the wet ore bin is perpendicular to the horizontal plane.

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