Hot air curtain for coal production conveying belt

Abstract

The hot air curtain for the coal production conveying belt comprises a machine body, a draught fan, an air outlet and a circulating water pipe, a pair of air guide plates are installed in the machine body, a plurality of third springs are connected to the air guide plates, and parallel assemblies are arranged at the positions, close to the upper end faces of the air guide plates, in the air outlet. The parallel assembly comprises a second sliding block and a second spring, an air gathering assembly is arranged at the position, close to the lower end face of the air guide plate, in the air outlet and comprises a first sliding block and a first spring, the air guide plate is matched with the parallel assembly and the air gathering assembly, and a plurality of connecting rings are installed in the air outlet. One ends of the connecting rings are connected to the air guide plate, and the other ends of the connecting rings are connected to the machine body. Compared with the prior art, the hot air curtain machine has the advantages that the air gathering nozzle is additionally arranged at the air outlet of the hot air curtain machine, the air outlet mode of the hot air curtain machine can be switched through manual operation, and the air speed of the air outlet is increased through the air gathering nozzle to overcome the influence of strong wind and low-temperature environment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of hot air curtain, specifically about a hot air curtain for coal production and transportation belt. BACKGROUND

[0002] In the coal mining operation, the mined coal is transported into the coal conveying gallery by the conveying belt, and the workers pre-process the mined coal. In the coal mining site in Hulunbuir, the lowest temperature in winter is about minus fifty degrees Celsius, at this time, the running coal conveying belt will bring the extremely low temperature air outside into the coal conveying gallery, which will threaten the safety of the indoor workers.

[0003] Usually, the method of installing a hot air curtain can be used to reduce the extremely low temperature air brought by the coal conveying belt into the room. However, when it is in Hulunbuir in winter, the strong wind and extremely cold weather often greatly reduces the effect of the hot air curtain, affecting the temperature in the coal conveying gallery. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a hot air curtain for coal production and transportation belt to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides a hot air curtain for coal production and transportation belt, which comprises a machine body, a fan, an air outlet and a circulating water pipe, a pair of air deflectors is installed inside the machine body, a plurality of third springs are connected to the pair of air deflectors, a parallel assembly is arranged at the position close to the upper end surface of the air deflector inside the air outlet, the parallel assembly comprises a second sliding block and a second spring, a wind gathering assembly is arranged at the position close to the lower end surface of the air deflector inside the air outlet, the wind gathering assembly comprises a first sliding block and a first spring, and the air deflector is matched with the parallel assembly and the wind gathering assembly.

[0006] In one or more embodiments of the utility model, a plurality of connecting rings are installed inside the air outlet, one end of the connecting rings is connected to the air deflector, and the other end is connected to the machine body.

[0007] In one or more embodiments of the utility model, a plurality of limiting plates are installed inside the air outlet, and the limiting plates are matched with the first sliding block and the second sliding block.

[0008] In one or more embodiments of the utility model, the wind gathering assembly is installed in the limiting plate at the lower end surface inside the air outlet, the wind gathering assembly is used for deflecting and limiting the air deflector, one end of the first spring is fixedly connected to the limiting plate, and the other end is fixedly connected to the first sliding block.

[0009] In one or more embodiments of the utility model, parallel assembly is installed in the limit board of the upper end face inside air outlet, parallel assembly is used for switching baffle to enter parallel state, one end of second spring is fixedly connected on limit board, and the other end is fixedly connected on second sliding block.

[0010] In one or more embodiments of the utility model, one end of third spring is fixedly connected on baffle, and the other end is fixedly connected on the inner wall of air outlet.

[0011] In one or more embodiments of the utility model, third spring, first spring and second spring are all tensile springs.

[0012] In one or more embodiments of the utility model, the shape of first sliding block and second sliding block is all a rectangle plus a trapezoid, and the length of the base of trapezoid in the shape of first sliding block is equal to the distance from the side of baffle close to limit board to limit board.

[0013] In one or more embodiments of the utility model, first sliding groove is set on the body close to lower end face, first handle that is matched with first sliding groove is fixedly connected on first sliding block, and first handle penetrates first sliding groove.

[0014] In one or more embodiments of the utility model, second sliding groove is set on the body close to upper end face, second handle that is matched with second sliding groove is fixedly connected on second sliding block, and second handle penetrates second sliding groove.

[0015] Compared with prior art, the utility model has the advantages that the air outlet of hot air curtain machine is equipped with air collecting nozzle, the air outlet mode of hot air curtain machine can be switched manually, and the influence of strong wind and low temperature environment is overcome by increasing the air speed of air outlet through air collecting nozzle. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the first structure diagram of hot air curtain for coal production and transportation belt in an embodiment of the utility model,

[0017] Figure 2 It is the second structure diagram of hot air curtain for coal production and transportation belt in an embodiment of the utility model, Figure 1 It is the enlarged view of B in the second structure diagram,

[0018] Figure 3 It is the second structure diagram of hot air curtain for coal production and transportation belt in an embodiment of the utility model,

[0019] Figure 4 It is the enlarged view of B in the second structure diagram, Figure 3

[0020] Figure 5 ​The first internal structure diagram of the hot air curtain for the coal production and transportation belt in one embodiment of the present application;

[0021] Figure 6 The second internal structure diagram of the hot air curtain for the coal production and transportation belt in one embodiment of the present application;

[0022] Figure 7 The schematic diagram of the hot air curtain for the coal production and transportation belt in one embodiment of the present application.

[0023] Main figure mark explanation:

[0024] 1-machine body, 101-connection ring, 102-first sliding groove, 103-second sliding groove, 104-limiting plate, 2-fan, 3-air outlet, 4-circulating water pipe, 5-air deflector, 501-third spring, 6-first sliding block, 601-first spring, 602-first handle, 7-second sliding block, 701-second spring, 702-second handle. Specific implementation

[0025] The specific implementation of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific implementation.

[0026] Referring to the drawings, a hot air curtain for a coal production and transportation belt is used in a coal mining site with extremely low temperature in winter such as Hulunbeier, is installed at the entrance position of the coal transportation belt into the coal conveying corridor, and is used for blocking the low-temperature cold wind outside and blocking part of the dust from entering the indoor coal conveying corridor.

[0027] A hot air curtain for a coal production and transportation belt comprises a machine body 1, a fan 2, an air outlet 3 and a circulating water pipe 4, two circulating water pipes 4 are respectively used for hot water in and out, are used for heating the hot water pipeline in the machine body 1, the wind generated by the fan 2 is heated through the hot water pipeline and is blown out from the air outlet 3, and the two hot air fans placed oppositely blow each other to generate a hot air curtain.

[0028] The body 1 is internally provided with a pair of air deflectors 5, which can be used to change the air direction at the air outlet 3. The air deflectors 5 are connected with a plurality of third springs 501, one end of each third spring 501 is fixedly connected to the air deflector 5, and the other end is fixedly connected to the inner wall of the air outlet 3. The third spring 501 is a tension spring. The air outlet 3 is internally provided with a plurality of connecting rings 101, one end of each connecting ring 101 is connected to the upper end surface of the air deflector 5, and the other end is connected to the body 1. The air deflector 5 can rotate around the connecting ring 101. When the air deflector 5 and the third spring 501 are not subjected to external force, the air deflector 5 is in a deflected state under the action of the third spring 501. At this time, the end of the air deflector 5 connected with the connecting ring 101 rotates, and the end of the air deflector 5 fixedly connected with the third spring 501 is attached to the inner wall of the air outlet 3.

[0029] The air outlet 3 is internally provided with a plurality of limiting plates 104, which are matched with the first sliding block 6 and the second sliding block 7. The first sliding block 6 and the second sliding block 7 can slide and displace along the internal space of the limiting plate 104. A wind gathering assembly is installed in the limiting plate 104 at the lower end surface of the air outlet 3. The wind gathering assembly is used to deflect and limit the air deflector 5. One end of the first spring 601 is fixedly connected to the limiting plate 104, and the other end is fixedly connected to the first sliding block 6. The first spring 601 is a tension spring. When the first sliding block 6 and the first spring 601 are not subjected to external force, the first sliding block 6 is fixed at a position close to the air outlet 3 under the action of the first spring 601.

[0030] When the first sliding block 6 is at the starting position close to the air outlet 3 under the stretching of the first spring 601, the trapezoidal part of the first sliding block 6 will resist one side of the air deflector 5, preventing the air deflector 5 from being attached to the inner wall of the air outlet 3 under the stretching of the third spring 501. Because the length of the bottom edge of the trapezoidal part of the first sliding block 6 is equal to the distance from the side of the air deflector 5 close to the limiting plate 104 to the limiting plate 104, when the first sliding block 6 is at the starting position close to the air outlet 3, the air deflector 5 is resisted by the first sliding block 6 and is in a position parallel to the air outlet 3. At this time, the air deflector 5 does not affect the airflow in the air outlet 3.

[0031] The first sliding groove 102 is arranged on the body 1 near the lower end face, and the first handle 602 fixedly connected with the first sliding groove 102 is arranged on the first sliding block 6, the first handle 602 penetrates the first sliding groove 102, and the first handle 602 can be held to drag the first sliding block 6 to move left and right within the range of the first sliding groove 102. When the first handle 602 is held to drag the first sliding block 6 to move backward from the starting position near the air outlet 3, the first spring 601 is stretched, and when the upper end face of the trapezoidal shape on the first sliding block 6 is separated from the side of the air deflector 5 away from the air outlet 3, the first sliding block 6 no longer abuts against the air deflector 5, the air deflector 5 is attached to the inner wall of the air outlet 3 under the action of the third spring 501, and at this time, the air deflector 5 completes the deflection displacement.

[0032] At this time, the first handle 602 is released, the first sliding block 6 moves to the starting position near the air outlet 3 under the action of the first spring 601, and finally abuts against the air deflector 5 which has undergone the deflection displacement, thereby limiting the air deflector 5 which has undergone the deflection, and preventing the air deflector 5 from moving due to wind blowing after the deflection.

[0033] The parallel assembly is arranged inside the air outlet 3 near the upper end face of the air deflector 5, and the parallel assembly includes the second sliding block 7 and the second spring 701. The second spring 701 is a tensile spring, the parallel assembly is installed in the limiting plate 104 on the upper end face inside the air outlet 3, the parallel assembly is used for switching the air deflector 5 into the parallel state, one end of the second spring 701 is fixedly connected to the limiting plate 104, and the other end is fixedly connected to the second sliding block 7. When the second sliding block 7 and the second spring 701 are not subjected to external force, the second sliding block 7 is located at the starting position near the air outlet 3 under the action of the second spring 701.

[0034] The second sliding groove 103 is arranged on the body 1 near the upper end face, and the second handle 702 fixedly connected with the second sliding groove 103 is arranged on the second sliding block 7, and the second handle 702 penetrates the second sliding groove 103. When the second handle 702 is held, the second sliding block 7 can slide along the inside of the limiting plate 104, and when the second handle 702 is held to drag the second sliding block 7 to move away from the air outlet 3, the trapezoidal protrusion on the second sliding block 7 lifts the air deflector 5 to make the air deflector 5 undergo the deflection displacement, and the second sliding block 7 can lift and deflect the air deflector 5 to a height sufficient to separate the side of the air deflector 5 in contact with the first sliding block 6.

[0035] After the side of the air deflector 5 in contact with the first sliding block 6 is separated, the first sliding block 6 no longer limits the air deflector 5 under the action of the first spring 601, the trapezoidal slope on the first sliding block 6 is inserted into the side of the air deflector 5 which has undergone the deflection, at this time, the second handle 702 is released, the first sliding block 6 returns to the initial position near the air outlet 3 and re-lifts the air deflector 5 to make the air deflector 5 into the parallel state with the air outlet 3.

[0036] The length of the second sliding groove 103 matches the displacement position of the second sliding block 7, and the internal distance of the second sliding groove 103 only needs to be enough to lift the air deflector 5 to a state of being separated from the first sliding block 6. The length of the first sliding groove 102 matches the displacement position of the first sliding block 6, and the length of the first sliding groove 102 supports the first sliding block 6 to be displaced to a position of being separated from the air deflector 5.

[0037] That is, pulling the first handle 602 can switch the air deflector 5 from the parallel position to the offset position and limit the air deflector 5. Pulling the second handle 702 can release the limitation of the air deflector 5 and switch it from the offset position to the parallel position.

[0038] When a pair of air deflectors 5 are switched to the offset position, the air outlet area at the air outlet 3 is reduced, and the two opposite air deflectors 5 form an air gathering nozzle at the air outlet 3. The wind speed in the air gathering nozzle is faster and the distance is farther. In extremely cold weather and windy weather, the hot air outlet opening air gathering nozzle of the coal production and transportation belt can be switched. The faster blowing speed of the hot air will improve the effect of blocking the cold wind.

[0039] In specific use, a pair of hot air machines are placed opposite each other on both sides of the coal production and transportation belt. Opening the hot air machines on both sides can form a hot air curtain. When the first sliding block 6 of the hot air curtain for coal production and transportation belt is at the starting position close to the air outlet 3, the air deflector 5 is in a parallel state. At this time, the air deflector 5 does not affect the wind speed and direction of the air outlet 3, and the hot air curtain for coal production and transportation belt is in a normal working state.

[0040] When extremely cold and windy weather is encountered, the normally operating hot air curtain for coal production and transportation belt has difficulty in blocking the entry of cold wind. At this time, the first handle 602 is moved away from the air outlet 3 by hand or by foot. The first handle 602 drives the first sliding block 6 to be separated from the air deflector 5. The air deflector 5 is deflected under the action of the third spring 501, and the first handle 602 is released to limit the air deflector 5. After the deflection operation of a pair of air deflectors 5 is completed, a pair of opposite air deflectors 5 form an air gathering outlet. At this time, the wind speed at the air outlet 3 is increased, the effect of the hot air curtain is improved, and the blocking effect of the cold wind is enhanced.

[0041] When the air gathering outlet is not needed, the second handle 702 can be manually pulled to the end of the second sliding groove 103. At this time, the second sliding block 7 is displaced and the air deflector 5 is lifted, so that the air deflector 5 is separated from the first sliding block 6. The limitation of the air deflector 5 is released. At this time, the first sliding block 6 is reset under the action of the first spring 601. The first handle 702 is released. The first sliding block 6 lifts the air deflector 5 during the resetting process and finally switches the air deflector 5 from the deflected state to the parallel state.

[0042] When the first handle 602 is manually dragged or driven by the foot, the air deflector 5 is switched from the parallel state to the deflection state; when the second handle 702 is manually dragged, the air deflector 5 is switched from the deflection state to the parallel state.

[0043] When the pair of air deflectors 5 are in the deflection state, the air outlet 3 forms a wind concentrator; when the pair of air deflectors 5 are in the parallel state, the wind speed and direction of the air outlet 3 are not affected; when only one side of the air deflector 5 is deflected, the wind direction of the air outlet 3 is deflected.

[0044] Compared with the prior art, the beneficial effects of the utility model are that the wind concentrator is installed at the air outlet of the hot air curtain machine, the air outlet mode of the hot air curtain machine can be manually switched, and the influence of strong wind and low temperature environment is overcome by increasing the wind speed of the air outlet through the wind concentrator.

[0045] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0046] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot air curtain for coal production transportation belt, comprising a machine body, a fan, an air outlet and a circulating water pipe, characterized in that, The body is internally provided with a pair of air deflectors, a plurality of third springs are connected to the air deflectors, a parallel assembly is arranged at the upper end surface of the air deflectors, the parallel assembly comprises a second sliding block and a second spring, a wind gathering assembly is arranged at the lower end surface of the air deflectors, the wind gathering assembly comprises a first sliding block and a first spring, and the air deflectors are matched with the parallel assembly and the wind gathering assembly.

2. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, A plurality of connecting rings are internally arranged in the air outlet, one end of the connecting rings is connected to the air deflectors, and the other end is connected to the body.

3. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, A plurality of limiting plates are internally arranged in the air outlet, and the limiting plates are matched with the first sliding block and the second sliding block.

4. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, The wind gathering assembly is arranged in the limiting plate at the lower end surface of the air outlet, the wind gathering assembly is used for deflecting and limiting the air deflectors, one end of the first spring is fixedly connected to the limiting plate, and the other end is fixedly connected to the first sliding block.

5. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, The parallel assembly is arranged in the limiting plate at the upper end surface of the air outlet, the parallel assembly is used for switching the air deflectors into a parallel state, one end of the second spring is fixedly connected to the limiting plate, and the other end is fixedly connected to the second sliding block.

6. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, One end of the third spring is fixedly connected to the air deflectors, and the other end is fixedly connected to the inner wall of the air outlet.

7. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, The third spring, the first spring and the second spring are all tensile springs.

8. A hot blast curtain for coal production conveyor belts according to claim 4 or 5, characterised in that, The first sliding block and the second sliding block are both in the shape of a rectangle plus a trapezoid, the length of the bottom side of the trapezoid in the shape of the first sliding block is equal to the distance from the side of the air deflector close to the limiting plate to the limiting plate.

9. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, A first sliding groove is arranged at the lower end surface of the body, a first handle fixedly connected to the first sliding groove is arranged on the first sliding block, and the first handle penetrates through the first sliding groove.

10. The hot air curtain for coal production conveyor belt according to claim 1, characterized in that, A second sliding groove is arranged at the upper end surface of the body, a second handle fixedly connected to the second sliding groove is arranged on the second sliding block, and the second handle penetrates through the second sliding groove.

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