Blast heating device for rock wool insulation board production

Abstract

The utility model provides a blast heating device for rock wool insulation board production, which comprises a shell, one side of the shell is fixedly connected with a driving motor, one end of the driving motor is welded with a turbine fan blade, the other side of the shell is in threaded connection with an air inlet baffle, the outer side of the shell is fixedly connected with an air outlet pipe, and the air outlet pipe is in threaded connection with the turbine fan blade. And an anti-backflow mechanism is arranged on the inner side surface of the air outlet pipe. According to the blast heating device for rock wool insulation board production, through the arrangement of the backflow prevention mechanism, when the driving motor works, high-speed air impacts the movable baffle and blows up the movable baffle, the movable baffle rotates around the rotating shaft, the air enters the cupola furnace, blast heating is conducted on the interior of the cupola furnace, and after blast heating is completed, the backflow prevention mechanism is started; when flue gas in the cupola furnace flows back, the movable baffle falls down under the action of gravity, when the backflow flue gas impacts the movable baffle, the first fixed baffle and the second fixed baffle can prevent the movable baffle from rotating reversely, and therefore the backflow prevention effect of the blast equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to the production of rock wool insulation boards, and in particular to an air blast heating device for the production of rock wool insulation boards. Background Art

[0002] Rock wool insulation board is made of basalt and other natural minerals as the main raw materials. After melting, the internationally advanced four-roller centrifugal cotton making process is used to pull the high-temperature melt of basalt cotton rock into non-continuous fibers of four to seven microns. A certain amount of adhesive, dust-proof oil, and water-repellent agent are added to the rock wool fiber. After sedimentation, solidification, cutting and other processes, a series of products with different densities are made according to different uses. In the production process of rock wool insulation board, a blast equipment is required to blast and heat the cupola. Once the blast equipment stops working, the smoke generated by the combustion in the cupola may flow back to the blower through the air intake pipe. Therefore, a blast heating device for the production of rock wool insulation board is particularly needed.

[0003] However, in the existing rock wool insulation board production, after the blast heating device is heated, once the stock equipment stops working, the smoke burning in the cupola may enter the blast equipment through the air outlet pipe and finally be discharged, causing environmental pollution. Utility Model Content

[0004] The purpose of the utility model is to provide a blast heating device for the production of rock wool insulation boards, so as to solve the problem that in the existing blast heating device for the production of rock wool insulation boards proposed in the above-mentioned background technology, after the blast heating, once the stock equipment stops working, the smoke burning in the cupola may enter the blast equipment through the air outlet pipe and finally be discharged, causing environmental pollution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blast heating device for producing rock wool insulation boards, comprising an outer shell and an anti-backflow mechanism, the anti-backflow mechanism comprising a first fixed baffle, a movable baffle, a second fixed baffle, a rotating shaft and a fixed sleeve, one side of the outer shell is fixedly connected to a drive motor, one end of the drive motor is welded with a turbine blade, the other side of the outer shell is threadedly connected to an air inlet baffle, the outer side of the outer shell is fixedly connected to an air outlet pipe, the inner surface of the air outlet pipe is provided with an anti-backflow mechanism, and the lower surface of the outer shell is provided with a fixing mechanism.

[0006] Preferably, the driving motor is connected to a switch, and the switch is connected to an electric wire.

[0007] Preferably, the anti-backflow mechanism includes a first fixed baffle, a movable baffle, a second fixed baffle, a rotating shaft and a fixed sleeve, the first fixed baffle is fixedly connected to the inner surface of the air outlet duct, the movable baffle is attached to one side of the first fixed baffle, the second fixed baffle is attached to the other side of the movable baffle, one side of the movable baffle is rotatably connected to the rotating shaft, and a fixed sleeve is sleeved on the outer end of the rotating shaft.

[0008] Preferably, the fixing sleeve is fixedly connected to the inner surface of the air outlet pipe, and the fixing sleeve is symmetrically arranged with respect to the central axis of the air outlet pipe.

[0009] Preferably, the fixing mechanism includes a fixing frame, a threaded hole, a fixing bolt, a spring and a pressure plate, the fixing frame is fixedly connected to the lower surface of the shell, a threaded hole is opened on one side of the fixing frame, a fixing bolt is threadedly connected to the inner surface of the threaded hole, a spring is fixedly connected to one side of the fixing bolt, and a pressure plate is welded to the other end of the spring.

[0010] Preferably, two groups of the fixing brackets are provided on the lower surface of the housing, and the fixing bolts are symmetrically arranged about the central axis of the fixing bracket.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the blast heating device for producing rock wool insulation boards, through the setting of the anti-backflow mechanism, when the driving motor is working, high-speed air impacts the movable baffle, blows up the movable baffle, and the movable baffle rotates around the rotating shaft, and the air enters the cupola to perform blast heating in the cupola. When the blast heating is completed, the movable baffle falls under the action of gravity when the flue gas in the cupola flows back. When the refluxed flue gas impacts the movable baffle, the first fixed baffle and the second fixed baffle can prevent the movable baffle from rotating in the opposite direction. At the same time, the size of the movable baffle is slightly smaller than the size of the air outlet pipe, so that the movable baffle can rotate normally. At the same time, the first fixed baffle, the second fixed baffle and the fixed sleeve can prevent the flue gas from flowing from the edge, thereby completing the anti-backflow effect of the blast equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the side view of the appearance structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the drive motor and the drive motor matching each other in the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the backflow prevention mechanism of the utility model;

[0015] Figure 4 It is a schematic cross-sectional structure diagram of the fixing mechanism of the utility model.

[0016] In the figure: 1. casing; 2. driving motor; 3. turbine blades; 4. air inlet baffle; 5. air outlet duct; 6. anti-backflow mechanism; 601. first fixed baffle; 602. movable baffle; 603. second fixed baffle; 604. rotating shaft; 605. fixing sleeve; 7. fixing mechanism; 701. fixing frame; 702. threaded hole; 703. fixing bolt; 704. spring; 705. pressure plate. DETAILED DESCRIPTION

[0017] 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 implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] See also Figure 1-4 The utility model provides a technical solution: a blast heating device for producing rock wool insulation board, comprising a shell 1 and an anti-backflow mechanism 6, the anti-backflow mechanism 6 comprises a first fixed baffle 601, a movable baffle 602, a second fixed baffle 603, a rotating shaft 604 and a fixed sleeve 605, a driving motor 2 is fixedly connected to one side of the shell 1, a turbine blade 3 is welded to one end of the driving motor 2, an air inlet baffle 4 is threadedly connected to the other side of the shell 1, an air outlet pipe 5 is fixedly connected to the outside of the shell 1, an anti-backflow mechanism 6 is arranged on the inner surface of the air outlet pipe 5, and a fixing mechanism 7 is arranged on the lower surface of the shell 1; by means of the above structure, the driving motor 2 drives the turbine blade 3 to rotate, drives air to enter from the holes on the air inlet baffle 4, is sent out from the air outlet pipe 5, enters the cupola, and the temperature in the cupola rises.

[0019] Furthermore, the driving motor 2 is connected to a switch, and the switch is connected to an electric wire; through the above structure, the working state of the driving motor 2 can be controlled by the switch.

[0020] Furthermore, the backflow prevention mechanism 6 includes a first fixed baffle 601, a movable baffle 602, a second fixed baffle 603, a rotating shaft 604 and a fixed sleeve 605. The inner surface of the air outlet duct 5 is fixedly connected with the first fixed baffle 601, one side of the first fixed baffle 601 is attached with the movable baffle 602, and the other side of the movable baffle 602 is attached with the second fixed baffle 603. One side of the movable baffle 602 is rotatably connected with the rotating shaft 604, and the outer end of the rotating shaft 604 is sleeved with a fixed sleeve 605. With the above structure, when the driving motor 2 is working, high-speed air impacts the movable baffle 602, blows up the movable baffle 602, and the movable baffle 602 It rotates around the rotating shaft 604, and the air enters the cupola to heat the cupola with blasting. When the blasting and heating are completed, the smoke in the cupola flows back and the movable baffle 602 falls under the action of gravity. When the returning smoke hits the movable baffle 602, the first fixed baffle 601 and the second fixed baffle 603 can prevent the movable baffle 602 from rotating in the opposite direction. At the same time, the size of the movable baffle 602 is slightly smaller than the size of the air outlet pipe 5, so that the movable baffle 602 can rotate normally. At the same time, the first fixed baffle 601, the second fixed baffle 603 and the fixed sleeve 605 can prevent the smoke from flowing from the edge, thereby completing the anti-backflow effect of the blast equipment.

[0021] Furthermore, the fixing sleeve 605 is fixedly connected to the inner surface of the air outlet pipe 5, and the fixing sleeve 605 is symmetrically arranged with respect to the central axis of the air outlet pipe 5. With the above structure, the fixing sleeve 605 is symmetrically arranged with respect to the central axis of the air outlet pipe 5, which can make the fixing of the rotating shaft 604 more stable.

[0022] Furthermore, the fixing mechanism 7 includes a fixing frame 701, a threaded hole 702, a fixing bolt 703, a spring 704 and a pressure plate 705. The fixing frame 701 is fixedly connected to the lower surface of the shell 1, a threaded hole 702 is opened on one side of the fixing frame 701, and a fixing bolt 703 is threadedly connected to the inner surface of the threaded hole 702. A spring 704 is fixedly connected to one side of the fixing bolt 703, and a pressure plate 705 is welded to the other end of the spring 704. With the above structure, when installing the air blowing equipment, first align the threaded hole 702 on the fixing frame 701 with the threaded groove of the object to be installed, and then screw the fixing bolt 703 in. When it is screwed to a certain position, the fixing bolt 703 will squeeze the spring 704, and the spring 704 will provide a reverse force to prevent the fixing bolt 703 from slipping when the fixing bolt 703 is screwed.

[0023] Furthermore, two groups of fixing brackets 701 are provided on the lower surface of the outer shell 1, and fixing bolts 703 are symmetrically arranged with respect to the central axis of the fixing bracket 701; by means of the above structure, two groups of fixing brackets 701 are provided on the lower surface of the outer shell 1, so that the blowing device can be fixed more stably.

[0024] Working principle: First, turn on the external power supply. When installing the air blowing device, first align the threaded hole 702 on the fixing frame 701 with the threaded groove of the object to be installed, and then screw in the fixing bolt 703. When it is screwed to a certain position, the fixing bolt 703 will squeeze the spring 704, and the spring 704 will provide a reverse force to prevent the fixing bolt 703 from slipping when the fixing bolt 703 is screwed. The fixing frame 701 is provided with two groups on the lower surface of the shell 1, which can make the air blowing device more stable. Then turn on the drive motor 2 through the switch, and the drive motor 2 drives the turbine fan blades 3 to rotate, driving the air to enter from the hole on the air inlet baffle 4 and be sent out from the air outlet pipe 5. When entering the cupola, the high-speed air impacts the movable baffle 602, blows up the movable baffle 602, and the movable baffle 602 revolves around the rotating shaft 604. Rotation, air enters the cupola, and the cupola is heated by blasting. When the blast heating is completed, the movable baffle 602 falls under the action of gravity when the smoke in the cupola flows back. When the returning smoke hits the movable baffle 602, the first fixed baffle 601 and the second fixed baffle 603 can prevent the movable baffle 602 from rotating in the opposite direction. At the same time, the size of the movable baffle 602 is slightly smaller than the size of the air outlet pipe 5, so that the movable baffle 602 can rotate normally. At the same time, the first fixed baffle 601, the second fixed baffle 603 and the fixed sleeve 605 can prevent the smoke from flowing from the edge, thus completing the anti-backflow effect of the blast equipment. The fixed sleeve 605 is symmetrically arranged with the central axis of the air outlet pipe 5, which can make the fixation of the rotating shaft 604 more stable, thus completing a blast heating device for the production of rock wool insulation boards.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the implementation rules without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blast heating device for producing rock wool insulation boards, comprising a housing (1) and a backflow prevention mechanism (6), characterized in that: The anti-backflow mechanism (6) comprises a first fixed baffle (601), a movable baffle (602), a second fixed baffle (603), a rotating shaft (604) and a fixed sleeve (605); a driving motor (2) is fixedly connected to one side of the housing (1); a turbine blade (3) is welded to one end of the driving motor (2); an air inlet baffle (4) is threadedly connected to the other side of the housing (1); an air outlet pipe (5) is fixedly connected to the outside of the housing (1); an inner surface of the air outlet pipe (5) is provided with the anti-backflow mechanism (6); and a fixing mechanism (7) is provided on the lower surface of the housing (1); The anti-backflow mechanism (6) comprises a first fixed baffle (601), a movable baffle (602), a second fixed baffle (603), a rotating shaft (604) and a fixed sleeve (605); the first fixed baffle (601) is fixedly connected to the inner surface of the air outlet pipe (5); the movable baffle (602) is attached to one side of the first fixed baffle (601); the second fixed baffle (603) is attached to the other side of the movable baffle (602); one side of the movable baffle (602) is rotatably connected to the rotating shaft (604); and the fixed sleeve (605) is sleeved on one end of the outer side of the rotating shaft (604).

2. The blast heating device for producing rock wool insulation board according to claim 1, characterized in that: The driving motor (2) is connected to a switch, and the switch is connected to an electric wire.

3. The air blast heating device for producing rock wool insulation board according to claim 1, characterized in that: The fixing sleeve (605) is fixedly connected to the inner surface of the air outlet pipe (5), and the fixing sleeve (605) is symmetrically arranged with respect to the central axis of the air outlet pipe (5).

4. The blast heating device for producing rock wool insulation board according to claim 1, characterized in that: The fixing mechanism (7) comprises a fixing frame (701), a threaded hole (702), a fixing bolt (703), a spring (704) and a pressure plate (705); the fixing frame (701) is fixedly connected to the lower surface of the housing (1); a threaded hole (702) is provided on one side of the fixing frame (701); a fixing bolt (703) is threadedly connected to the inner surface of the threaded hole (702); a spring (704) is fixedly connected to one side of the fixing bolt (703); and a pressure plate (705) is welded to the other end of the spring (704).

5. The blast heating device for producing rock wool insulation board according to claim 4, characterized in that: Two groups of the fixing frame (701) are arranged on the lower surface of the housing (1), and the fixing bolts (703) are symmetrically arranged about the central axis of the fixing frame (701).

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