Heating centrifugal blower for mine well

Abstract

The heating centrifugal blower for the mine well comprises a centrifugal blower body, a drawing groove and a fixing mechanism, an air inlet of the centrifugal blower body is communicated with a connecting box, a blocking plate is fixedly connected in the connecting box, the interior of the connecting box is divided into an air inlet chamber and an air outlet chamber by the blocking plate, an air inlet is formed in one side of the air inlet chamber, and an air outlet is formed in the other side of the air outlet chamber. A drawing groove is formed in the bottom end of the connecting box and communicates with the air inlet chamber and the air outlet chamber, a drawing box is slidably connected to the inner wall of the drawing groove, the interior of the drawing box is divided into a square groove and a trapezoidal groove, the square groove communicates with the bottom end of the trapezoidal groove, clear water is injected into the communicating position, and a fixing mechanism is installed in the connecting box and matched with the drawing box. Due to the design of the centrifugal blower, the internal cleanness of the centrifugal blower is ensured, the input air does not contain dust, and the air quality in a mine well is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a heating centrifugal blower for mine shafts. Background Art

[0002] Most mines are located in sparsely populated areas, where the winter temperature is below zero and the gas content is high. Coal mine ventilation is the most important safety production condition for mines. In winter, in order to keep the shaft warm and prevent freezing and safety accidents;

[0003] Therefore, it is necessary to supply air to the mine shaft. At present, centrifugal fans are used to supply air to the mine shaft. However, the centrifugal fans need to be cleaned regularly after being used for a period of time. The internal structure of the centrifugal fans is complicated, so it is not easy to clean.

[0004] Therefore, we propose a heating centrifugal blower for mine shafts. Utility Model Content

[0005] The utility model aims to provide a heating centrifugal blower for mine shafts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating centrifugal blower for mine shafts, comprising: a centrifugal blower body, a pull-out groove and a fixing mechanism, the air inlet of the centrifugal blower body is connected to a connecting box, a blocking plate is fixedly connected to the inside of the connecting box, the inside of the connecting box is divided into an air inlet chamber and an air outlet chamber by the blocking plate, an air inlet is provided on one side of the air inlet chamber, a pull-out groove is provided inside the bottom end of the connecting box, the pull-out groove is connected to the air inlet chamber and the air outlet chamber, a pull-out box is slidably connected to the inner wall of the pull-out groove, the inside of the pull-out box is divided into a square groove and a trapezoidal groove, the square groove is connected to the bottom end of the trapezoidal groove, and clean water is injected into the connecting point, a fixing mechanism is installed inside the connecting box, and the fixing mechanism is installed in coordination with the pull-out box.

[0007] Preferably, the fixing mechanism includes: a rotating rod, a sliding groove is opened on the inner wall of the bottom end of the pull-out groove, the inner wall of the sliding groove is rotatably connected to the rotating rod, external threads are symmetrically opened at both ends of the rotating rod, and extrusion blocks are symmetrically slidably connected to the inner wall of the sliding groove, the two extrusion blocks are threadedly connected to the external threads on the rotating rod, and card slots are opened on the bottom of both ends of the pull-out box. The extrusion blocks are trapezoidal in design, and the inclined ends of the extrusion blocks are installed in cooperation with the card slots.

[0008] Preferably, a sealing gasket is fixedly connected to the interior of the connection box below the blocking plate.

[0009] Preferably, a curved heating tube is installed inside the air outlet chamber.

[0010] Preferably, a detachable filter plate is installed on the inner wall of the trapezoidal groove.

[0011] Preferably, the two external threads have opposite thread directions.

[0012] Preferably, a hexagonal groove is formed at one end of the rotating rod.

[0013] Preferably, a handle is fixedly connected to the outer wall of the drawer box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In actual application of the utility model, air first enters the air intake chamber through the air inlet, and then flows through the square groove, exerting pressure on the clean water, causing the water level of the clean water in the trapezoidal groove to gradually rise. As the clean water level continues to rise, when the clean water level in the square groove is lower than the blocking plate, the clean water begins to flow back. At this time, a large number of bubbles gather and enter the trapezoidal groove. These bubbles are divided into smaller bubbles under the action of the filter plate, so that the air becomes purer after the "washing" process of clean water. The clean air after washing enters the centrifugal blower under the heating action of the heating tube, and is then sent into the mine shaft. This design not only ensures the cleanliness of the inside of the centrifugal blower, but also the input air does not contain dust, effectively improving the air quality in the mine shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection box of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the drawer box of the utility model.

[0019] In the figure: 1. centrifugal blower; 2. connecting box; 3. blocking plate; 4. air inlet chamber; 5. air outlet chamber; 6. air inlet; 7. pull-out groove; 8. pull-out box; 9. square groove; 10. trapezoidal groove; 11. fixing mechanism; 12. sealing gasket; 13. heating tube; 14. filter plate; 15. hexagonal groove; 16. handle; 111. slide groove; 112. rotating rod; 113. external thread; 114. extrusion block; 115. card slot. DETAILED DESCRIPTION

[0020] 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 the embodiments. 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.

[0021] See also Figure 1-3 As shown, a heating centrifugal blower for mine shafts includes a centrifugal blower body 1, a drawing groove 7 and a fixing mechanism 11. The air inlet of the centrifugal blower body 1 is connected to a connection box 2, and a blocking plate 3 is fixedly connected to the inside of the connection box 2. The inside of the connection box 2 is divided into an air inlet chamber 4 and an air outlet chamber 5 by the blocking plate 3. An air inlet 6 is opened on one side of the air inlet chamber 4. A drawing groove 7 is opened inside the bottom end of the connection box 2. The drawing groove 7 is connected to the air inlet chamber 4 and the air outlet chamber 5. The inner wall of the drawing groove 7 is slidably connected to a drawing groove 7. Box 8, the interior of the pull-out box 8 is divided into a square groove 9 and a trapezoidal groove 10, the square groove 9 is connected to the bottom end of the trapezoidal groove 10, and clean water is injected into the connecting point, a fixing mechanism 11 is installed inside the connecting box 2, and the fixing mechanism 11 is installed in conjunction with the pull-out box 8. A sealing gasket 12 is fixedly connected to the interior of the connecting box 2 below the blocking plate 3, a curved heating pipe 13 is installed inside the air outlet chamber 5, a detachable filter plate 14 is installed on the inner wall of the trapezoidal groove 10, and a handle 16 is fixedly connected to the outer wall of the pull-out box 8.

[0022] See also Figure 2-3 As shown, the fixing mechanism 11 includes: a rotating rod 112, a sliding groove 111 is provided on the inner wall of the bottom end of the drawer groove 7, the inner wall of the sliding groove 111 is rotatably connected to the rotating rod 112, external threads 113 are symmetrically provided at both ends of the rotating rod 112, and the inner wall of the sliding groove 111 is symmetrically slidably connected to extrusion blocks 114, the two extrusion blocks 114 are threadedly connected to the external threads 113 on the rotating rod 112, and a card slot 115 is provided at the bottom of both ends of the drawer box 8, the extrusion block 114 is trapezoidal in design, and the inclined end of the extrusion block 114 is matched with the card slot 115 for installation, the two external threads 113 are in opposite directions, and one end of the rotating rod 112 is provided with a hexagonal groove 15.

[0023] Working principle:

[0024] In practical application, the working process of the utility model is as follows: air first enters the air inlet chamber 4 through the air inlet 6, and then flows through the square groove 9, exerting pressure on the clean water, so that the water level of the clean water in the trapezoidal groove 10 gradually rises. As the clean water level continues to rise, when the clean water level in the square groove 9 is lower than the blocking plate 3, the clean water begins to flow back, and a large number of bubbles gather and enter the trapezoidal groove 10. These bubbles are refined into smaller bubbles under the action of the filter plate 14, so that the air becomes purer after the "washing" process of clean water. The clean air after washing then enters the centrifugal blower body 1 under the heating action of the heating tube 13, and is finally sent into the mine shaft. This design not only ensures the cleanliness of the inside of the centrifugal blower body 1, but also the input air does not contain dust, thereby effectively improving the air quality in the mine shaft. When it is necessary to replace the clean water, the rotating rod 112 only needs to be rotated. Since the external threads 113 on the rotating rod 112 have opposite screw directions, the two extrusion blocks 114 will move away from each other and completely enter the chute 111 when the rotating rod 112 rotates. At this time, the drawer box is no longer restricted and can be easily taken out to replace the clean water. After the replacement is completed, the above action is repeated to return the drawer box to its original position.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating centrifugal blower for mine shafts, characterized in that: include: A centrifugal blower body (1), wherein an air inlet of the centrifugal blower body (1) is connected to a connection box (2), a blocking plate (3) is fixedly connected to the interior of the connection box (2), the interior of the connection box (2) is divided into an air inlet chamber (4) and an air outlet chamber (5) by the blocking plate (3), and an air inlet (6) is provided on one side of the air inlet chamber (4); A pull-out groove (7), wherein the bottom end of the connection box (2) is provided with a pull-out groove (7), the pull-out groove (7) is connected to the air inlet chamber (4) and the air outlet chamber (5), the inner wall of the pull-out groove (7) is slidably connected to a pull-out box (8), the inside of the pull-out box (8) is divided into a square groove (9) and a trapezoidal groove (10), the bottom ends of the square groove (9) and the trapezoidal groove (10) are connected, and clean water is injected into the connecting point; A fixing mechanism (11) is installed inside the connection box (2), and the fixing mechanism (11) is installed in coordination with the drawer box (8).

2. A heating centrifugal blower for mine shafts according to claim 1, characterized in that: The fixing mechanism (11) comprises: a rotating rod (112); a sliding groove (111) is provided on the inner wall of the bottom end of the drawer groove (7); the inner wall of the sliding groove (111) is rotatably connected to the rotating rod (112); external threads (113) are symmetrically provided at both ends of the rotating rod (112); the inner wall of the sliding groove (111) is symmetrically slidably connected to extrusion blocks (114); the two extrusion blocks (114) are threadedly connected to the external threads (113) on the rotating rod (112); and the bottom of both ends of the drawer box (8) is provided with a clamping groove (115); the extrusion block (114) is of trapezoidal design, and the inclined end of the extrusion block (114) is mounted in cooperation with the clamping groove (115).

3. A heating centrifugal blower for mine shafts according to claim 2, characterized in that: A sealing gasket (12) is fixedly connected to the interior of the connection box (2) below the blocking plate (3).

4. A heating centrifugal blower for mine shafts according to claim 3, characterized in that: A curved heating tube (13) is installed inside the gas outlet chamber (5).

5. A heating centrifugal blower for mines according to claim 3, characterized in that: A detachable filter plate (14) is mounted on the inner wall of the trapezoidal groove (10).

6. A heating centrifugal blower for mine shafts according to claim 2, characterized in that: The two external threads (113) have opposite thread directions.

7. A heating centrifugal blower for mines according to claim 2, characterized in that: One end of the rotating rod (112) is provided with a hexagonal groove (15).

8. A heating centrifugal blower for mines according to claim 2, characterized in that: A handle (16) is fixedly connected to the outer wall of the drawer box (8).

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