Expanded perlite preheating device

Abstract

The utility model discloses an expanded perlite preheating device which comprises a preheating cylinder and a material storage cylinder, a discharging pipe is installed at a discharging port in the bottom of the preheating cylinder, a stirring mechanism is arranged in the preheating cylinder and comprises a stirring shaft, a servo motor and a stirring rod, the upper side of an inner cavity of the preheating cylinder is rotationally connected with the stirring shaft, and the stirring rod is connected with the servo motor. According to the expanded perlite preheating device, the hot air blower is installed at the air inlet in the bottom end of the right side of the preheating cylinder, hot air can directly enter the preheating cylinder to preheat perlite, the stirring mechanism is matched, the preheating effect is guaranteed, the storage cylinder is arranged on the upper side of the preheating cylinder, the storage cylinder is arranged on the lower side of the preheating cylinder, and the storage cylinder is arranged on the lower side of the preheating cylinder; and the discharging pipe with the heating pipe is installed at the bottom of the storage barrel, when perlite enters the preheating barrel, preheating can be conducted through the heating pipe, and the perlite preheating efficiency is improved in cooperation with the discharging mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of expanded perlite, and in particular relates to an expanded perlite preheating device. Background Art

[0002] Expanded perlite is a natural acidic glassy volcanic lava, a non-metallic mineral, including perlite, pitchstone and obsidian, the three of which differ only in the content of crystal water. Because its volume rapidly expands 4 to 30 times under high temperature conditions, it is collectively called expanded perlite. When processing expanded perlite, it needs to be preheated and then expanded through an expansion furnace.

[0003] At present, perlite is mostly preheated by a preheating mechanism with a double-chamber structure. Due to the stacking of perlite, the internal perlite preheating efficiency is low. For example, the patent with application number 201120227032.7 discloses a novel preheating production device for expanded perlite. Under the action of a heat exchanger and an induced draft duct, the patent introduces the waste heat of the exhaust gas discharged during the operation of the expansion furnace into the sealed insulation body outside the preheating furnace, thereby heating the rotatable furnace body and completing the preheating process of the ore in the rotatable furnace body, saving energy. However, the double-chamber preheating structure has the problems of low preheating efficiency and poor preheating effect. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides an expanded perlite preheating device, by installing a hot air blower at the air inlet at the right bottom end of the preheating cylinder, the hot air can directly enter the preheating cylinder to preheat the perlite, and cooperate with the stirring mechanism to ensure the preheating effect, by arranging a storage cylinder on the upper side of the preheating cylinder, and installing a feeding pipe with a heating pipe at the bottom of the storage cylinder, when the perlite enters the preheating cylinder, it can be preheated by the heating pipe, and cooperate with the feeding mechanism to improve the efficiency of preheating the perlite.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A preheating device for expanded perlite comprises a preheating cylinder and a storage cylinder, a discharge port at the bottom of the preheating cylinder is equipped with a discharge pipe, a stirring mechanism is arranged in the preheating cylinder, the stirring mechanism comprises a stirring shaft, a servo motor and a stirring rod, the stirring shaft is rotatably connected to the upper side of the inner cavity of the preheating cylinder, a servo motor connected to the stirring shaft is installed on the upper side of the preheating cylinder, stirring rods are arranged on the left and right sides of the stirring shaft, and a first spiral sheet located in the inner cavity of the discharge pipe is arranged on the side surface of the bottom end of the stirring shaft; a hot air blower is installed at the air inlet at the bottom right end of the preheating cylinder, a storage cylinder is installed on the upper side of the preheating cylinder, a discharge port at the bottom of the storage cylinder is connected to the inner cavity of the preheating cylinder, and a discharge pipe is installed at the discharge port at the bottom of the storage cylinder, and a heating pipe is installed on the side wall of the discharge pipe. A feeding pipe is installed at the feeding port on the upper side of the storage barrel, and a feeding mechanism is provided in the storage barrel, and the feeding mechanism includes a rotating shaft, a reduction motor and a second spiral sheet. The upper side of the inner cavity of the storage barrel is rotatably connected with the rotating shaft, and the bottom end side of the rotating shaft is provided with a second spiral sheet located in the inner cavity of the feeding pipe. The upper side of the storage barrel is provided with a reduction motor connected with the rotating shaft. By installing a hot air blower at the air inlet at the bottom end of the right side of the preheating barrel, the hot air can directly enter the preheating barrel to preheat the perlite, and cooperate with the stirring mechanism to ensure the preheating effect. By arranging the storage barrel on the upper side of the preheating barrel and installing a feeding pipe with a heating pipe at the bottom of the storage barrel, the perlite can be preheated by the heating pipe when entering the preheating barrel. Cooperating with the feeding mechanism, the efficiency of preheating the perlite is improved.

[0007] Furthermore, an induced draft fan is installed at the exhaust port on the left side of the upper end of the preheating cylinder, and an air supply pipe is installed at the air outlet of the induced draft fan. The exhaust port of the air supply pipe is connected with the inner cavity of the preheating cylinder. The induced draft fan can continue to transport excess heat above the inner cavity of the preheating cylinder to the preheating cylinder through the air supply pipe, which is convenient for reuse, reduces waste and improves energy saving.

[0008] Furthermore, a scraper is fixed to the end of the stirring rod, and the scraper is slidably connected to the inner wall of the preheating cylinder. By arranging the scraper at the end of the stirring rod, part of the perlite is prevented from adhering to the inner wall of the preheating cylinder when the perlite is stirred.

[0009] Compared with the prior art, the utility model has the following beneficial effects: by installing a hot air blower at the air inlet at the right bottom end of the preheating cylinder, hot air can directly enter the preheating cylinder to preheat the perlite, and cooperate with the stirring mechanism to ensure the preheating effect; by arranging a storage cylinder on the upper side of the preheating cylinder, and installing a feeding pipe with a heating pipe at the bottom of the storage cylinder, when the perlite enters the preheating cylinder, it can be preheated by the heating pipe, and cooperate with the feeding mechanism to improve the efficiency of preheating the perlite; the induced draft fan can continue to transport excess heat above the inner cavity of the preheating cylinder to the preheating cylinder through the air delivery pipe, which is convenient for repeated use, reduces waste, and improves energy saving; by arranging a scraper at the end of the stirring rod, when the perlite is stirred, part of the perlite is prevented from adhering to the inner wall of the preheating cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model.

[0011] In the figure: 1 preheating cylinder, 2 discharge pipe, 3 first spiral sheet, 4 stirring mechanism, 41 stirring shaft, 42 servo motor, 43 stirring rod, 5 storage cylinder, 6 discharge pipe, 7 discharge mechanism, 71 rotating shaft, 72 reduction motor, 73 second spiral sheet, 8 heating pipe, 9 feeding pipe, 10 hot air blower, 11 scraper, 12 induced draft fan, 13 air delivery pipe. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0014] See attached Figure 1As shown, an expanded perlite preheating device comprises a preheating cylinder 1 and a storage cylinder 5, a discharge port at the bottom of the preheating cylinder 1 is installed with a discharge pipe 2, a stirring mechanism 4 is arranged in the preheating cylinder 1, the stirring mechanism 4 comprises a stirring shaft 41, a servo motor 42 and a stirring rod 43, a stirring shaft 41 is rotatably connected to the upper side of the inner cavity of the preheating cylinder 1, a servo motor 42 connected to the stirring shaft 41 is installed on the upper side of the preheating cylinder 1, stirring rods 43 are arranged on the left and right sides of the stirring shaft 41, and a first spiral sheet 3 located in the inner cavity of the discharge pipe 2 is arranged on the side of the bottom end of the stirring shaft 41; a hot air blower 10 is installed at the air inlet at the bottom end of the right side of the preheating cylinder 1, a storage cylinder 5 is installed on the upper side of the preheating cylinder 1, a discharge port at the bottom of the storage cylinder 5 is connected to the inner cavity of the preheating cylinder 1, and a discharge pipe 6 is installed at the discharge port at the bottom of the storage cylinder 5, a heating pipe 8 is installed on the side wall of the discharge pipe 6, and the storage cylinder A feeding pipe 9 is installed at the feeding port on the upper side of 5, and a feeding mechanism 7 is provided in the storage barrel 5. The feeding mechanism 7 includes a rotating shaft 71, a reduction motor 72 and a second spiral piece 73. The upper side of the inner cavity of the storage barrel 5 is rotatably connected with the rotating shaft 71, and the bottom end side of the rotating shaft 71 is provided with a second spiral piece 73 located in the inner cavity of the feeding pipe 6. The upper side of the storage barrel 5 is installed with a reduction motor 72 connected with the rotating shaft 71. By installing a hot air blower 10 at the air inlet at the bottom end of the right side of the preheating barrel 1, hot air can directly enter the preheating barrel 1 to preheat the perlite. In conjunction with the stirring mechanism 4, the preheating effect is guaranteed. By arranging the storage barrel 5 on the upper side of the preheating barrel 1 and installing a feeding pipe 6 with a heating pipe 8 at the bottom of the storage barrel 5, when the perlite enters the preheating barrel 1, it can be preheated by the heating pipe 8. In conjunction with the feeding mechanism 7, the efficiency of preheating the perlite is improved.

[0015] An induced draft fan 12 is installed at the exhaust port on the left side of the upper end of the preheating tube 1, and an air duct 13 is installed at the air outlet of the induced draft fan 12. The exhaust port of the air duct 13 is connected with the inner cavity of the preheating tube 1. The induced draft fan 12 can continue to transport excess heat above the inner cavity of the preheating tube 1 to the preheating tube 1 through the air duct 13, which is convenient for reuse, reduces waste, and improves energy saving.

[0016] The ends of the stirring rods 43 are fixed with scrapers 11, which are slidably connected to the inner wall of the preheating tube 1. By arranging the scrapers 11 at the ends of the stirring rods 43, part of the perlite is prevented from adhering to the inner wall of the preheating tube 1 when the perlite is stirred.

[0017] Working principle: the perlite to be preheated enters the storage barrel 5 through the feeding pipe 9, and the reduction motor 72 drives the second spiral piece 73 to rotate through the rotating shaft 71. Under the rotation of the second spiral piece 73, the perlite in the storage barrel 5 enters the preheating barrel 1 through the feeding pipe 6. When the perlite passes through the feeding pipe 6, the heating pipe 8 in the side wall of the feeding pipe 6 preheats the perlite, thereby improving the efficiency of preheating the perlite. By installing a hot air blower 10 at the air inlet at the bottom right end of the preheating barrel 1, the hot air can directly enter the preheating barrel 1 to preheat the perlite. At the same time, the servo motor 42 drives the stirring rod 43 to rotate through the stirring shaft 41, so as to The perlite is stirred to ensure the preheating effect. The induced draft fan 12 can continue to transport the excess heat above the inner cavity of the preheating cylinder 1 to the preheating cylinder 1 through the air duct 13, which is convenient for reuse, reduces waste and improves energy saving. By arranging a scraper 11 at the end of the stirring rod 43, when the perlite is stirred, part of the perlite is prevented from adhering to the inner wall of the preheating cylinder 1. After the preheating of the perlite is completed, the servo motor 42 drives the stirring rod 43 to rotate in the opposite direction through the stirring shaft 41, thereby driving the first spiral piece 3 to rotate in the opposite direction. Under the action of the first spiral piece 3, the preheated perlite is discharged from the discharge pipe 2.

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An expanded perlite preheating device, comprising a preheating cylinder and a storage cylinder, a discharge port at the bottom of the preheating cylinder is provided with a discharge pipe, a stirring mechanism is provided in the preheating cylinder, the stirring mechanism comprises a stirring shaft, a servo motor and a stirring rod, a stirring shaft is rotatably connected to the upper side of the inner cavity of the preheating cylinder, a servo motor connected to the stirring shaft is installed on the upper side of the preheating cylinder, stirring rods are provided on both sides of the stirring shaft, a first spiral sheet located in the inner cavity of the discharge pipe is provided on the side of the bottom end of the stirring shaft, and the characteristics are: A hot air blower is installed at the air inlet at the bottom right end of the preheating cylinder, a storage barrel is installed on the upper side of the preheating barrel, the discharge port at the bottom of the storage barrel is connected to the inner cavity of the preheating barrel, and a discharge pipe is installed at the discharge port at the bottom of the storage barrel, a heating pipe is installed on the side wall of the discharge pipe, a feeding pipe is installed at the feeding port on the upper side of the storage barrel, a discharge mechanism is provided in the storage barrel, the discharge mechanism includes a rotating shaft, a reduction motor and a second spiral sheet, a rotating shaft is rotatably connected to the upper side of the inner cavity of the storage barrel, a second spiral sheet located in the inner cavity of the discharge pipe is provided on the bottom end side of the rotating shaft, and a reduction motor connected to the rotating shaft is installed on the upper side of the storage barrel.

2. The expanded perlite preheating device according to claim 1, characterized in that: An induced draft fan is installed at the exhaust port on the left side of the upper end of the preheating cylinder, an air supply pipe is installed at the air outlet of the induced draft fan, and the exhaust port of the air supply pipe is connected to the inner cavity of the preheating cylinder.

3. The expanded perlite preheating device according to claim 1, characterized in that: The ends of the stirring rods are fixed with scrapers, and the scrapers are slidably connected to the inner wall of the preheating cylinder.

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