Dust removal type unloading structure for coal mines

Abstract

The present invention discloses a dust removal type unloading structure for coal mines, comprising a base, a bracket fixed on the base, a workbench arranged on the bracket, a conveyor belt arranged on a driving shaft, a support platform arranged on the workbench, a connecting rib rod connected to the support platform through a pin shaft, a unloading bucket fixed to the end of the connecting rib rod, an electric telescopic rod fixed between the support platform and the connecting rib rod, a dust cover connected to the top of the unloading bucket through a movable shaft rod, dust suction holes evenly fixed to the bottom surface of the dust cover, a dust collecting box fixed to the top surface of the support platform, a water storage tank fixed to the top of the dust collecting box, a spray head opened on the middle top wall of the dust guide pipe, a water pump fixed in the water storage tank, and an electric adjustment rod arranged between the dust cover and the top wall of the unloading bucket. The present invention has a reasonable structure, can effectively realize the shoveling and unloading of coal materials, through the dust cover and the dust collector, dust removal is realized without directly spraying water mist into the coal materials, which is conducive to ensuring the dryness of the coal materials, strong applicability and good practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mines, and in particular relates to a dust removal type unloading structure for coal mines. Background Art

[0002] The unloader is a common coal sorting machine with the advantages of absolute self-locking, large overload capacity and long-distance stable travel. It mainly acts on the driving rod by extending the push rod to drive the unloading structure to fall, and fits tightly with the belt surface to unload the coal running on the belt into the hopper or to the required place. Although it can meet the market demand, it will produce greater coal dust pollution during actual operation. The common operation is to install an atomizing nozzle on the unloader to atomize the surrounding environment and absorb coal dust through droplets to avoid coal dust pollution of the surrounding air. However, since it will cause moisture in the coal mine during atomization, affecting the quality of the coal, the coal needs to be dried in the subsequent process, which greatly increases the cost and affects the processing efficiency. The applicability and practicality are limited. Summary of the invention

[0003] The purpose of the present invention is to provide a dust removal type unloading structure for coal mines which has reasonable structural arrangement and strong applicability.

[0004] The technical solution to achieve the purpose of the present invention is a dust removal type unloading structure for coal mines, comprising a base, a bracket fixed on the base, a workbench provided on the bracket, a driving shaft and a driving motor connected to the driving shaft provided on the workbench, a conveyor belt provided on the driving shaft, a supporting platform provided on the workbench, a connecting rib connected to the supporting platform via a pin shaft, and a unloading bucket fixed to the end of the connecting rib;

[0005] An electric telescopic rod is fixed between the support platform and the connecting rib rod;

[0006] The top of the unloading bucket is connected to a dust cover via a movable shaft, and dust suction holes are evenly fixed on the bottom surface of the dust cover;

[0007] A dust collecting box is fixed on the top surface of the support platform, a dust collector is fixed in the dust collecting box, and the dust collector is connected to the dust collecting hole through a dust guide pipe;

[0008] A water storage tank is fixed on the top of the dust collecting box, a spray head is provided on the middle top wall of the dust guiding pipe, a water pump is fixed in the water storage tank, and the water pump is connected to the spray head through the water guiding pipe;

[0009] An electric adjustment rod is arranged between the dust removal cover and the top wall of the discharge bucket.

[0010] It is further preferred that: an inclined material guide plate is provided on the workbench through a support arm, the bottom surface of the inclined material guide plate is attached to the surface of the conveyor belt and the unloading bucket is located directly behind the inclined material guide plate;

[0011] The rear end of the inclined material guide plate is connected to a movable baffle plate via a rotating pin, and a control structure is provided between the movable baffle plate and the bottom surface of the inclined material guide plate;

[0012] The movable baffle can be tilted downward under the action of the control structure to guide the material on the inclined material guide plate into the discharge bucket, and can also be tilted upward to block the accumulation of material on the inclined material guide plate when the discharge bucket leaves the conveyor belt.

[0013] It is further preferred that: the control structure comprises a retractable electric rod and an arched connecting block;

[0014] The two ends of the arched connecting block are respectively connected to the end of the retractable electric rod and the back side of the movable baffle through connecting pins.

[0015] It is further preferred that: a concave cavity is formed on the top surface of the workbench, and a rotating shaft is integrally formed at the center of the bottom surface of the support platform;

[0016] A rotating motor is fixed in the concave cavity, and the rotating motor is connected to the rotating shaft and can rotate the supporting platform.

[0017] It is further preferred that: a water level sensor is provided in the water storage tank;

[0018] A power cavity and a cavity cover are fixed in the support platform, a power supply is arranged in the power cavity, and a flame retardant heat insulation layer is arranged on the inner wall of the power cavity and the inner wall of the cavity cover.

[0019] Further preferably, limiting convex plates are integrally formed on both sides of the workbench, and the edges of the conveyor belt are pressed against the inner walls of the limiting convex plates.

[0020] It is further preferred that: the height of the inclined material guide plate is smaller than the height of the limiting convex plate.

[0021] More preferably, the dust removal cover is a cover body made of plastic material.

[0022] Its working principle is briefly described as follows: when in use, the conveyor belt conveys coal, and at the same time the inclined guide plate is placed on the conveyor belt. When the unloading bucket is not lowered, the movable baffle is moved upward to allow the coal to accumulate on the inclined guide plate and the conveyor belt without overflowing. The unloading bucket is allowed to enter through the electric telescopic rod as needed. At this time, the movable baffle is opened downward. Under the thrust of the conveyor belt, the coal enters the unloading bucket from the inclined guide plate and the movable baffle. At this time, the dust removal hood is moved downward to close to the top of the feed port of the unloading bucket, and the coal dust is removed by the vacuum cleaner and the spray head. After the unloading bucket is full, it rises and moves to the corresponding position. At this time, the movable baffle is blocked upward, and the above operation is repeated.

[0023] The present invention has positive effects: the structure of the present invention is reasonable, it is not only easy to operate, but also can effectively realize the shoveling and unloading of coal. Moreover, through the dust removal hood and the dust collector, dust removal can be achieved without directly spraying water mist into the coal, which is beneficial to ensure the dryness of the coal and will not affect the quality of the coal. It is stable and reliable to use, has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the specific structure of the unloading bucket in the present invention;

[0027] Figure 3 It is a specific structural schematic diagram of the inclined material guide plate, the rotating pin shaft, the movable baffle plate and the control structure in the present invention.

[0028] Figure numerals: base 1, bracket 2, workbench 3, drive shaft 4, drive motor 5, conveyor belt 6, support platform 7, pin 8, connecting rib rod 9, unloading bucket 10, electric telescopic rod 11, movable shaft 12, dust cover 13, dust suction hole 14, dust collecting box 15, vacuum cleaner 16, dust guide pipe 17, water storage tank 18, spray head 19, water pump 20, inclined guide plate 21, rotating pin 22, movable baffle 23, control structure 24, retractable electric rod 241, arched connecting block 242, connecting pin body 243, concave cavity 25, rotating shaft 26, rotating motor 27, water level sensor 28, power supply cavity 29, cavity cover 30, power supply 31, flame retardant and heat-insulating layer 32, limiting convex plate 33, support arm 34. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] See Figures 1 to 3 As shown, a dust removal type unloading structure for coal mines includes a base 1, a bracket 2 fixed on the base, a workbench 3 is arranged on the bracket, a driving shaft 4 and a driving motor 5 connected to the driving shaft are arranged on the workbench, and a conveyor belt 6 is arranged on the driving shaft. In actual application, limiting convex plates 33 are integrally formed on both sides of the workbench, and the edge of the conveyor belt is pressed against the inner wall of the limiting convex plate.

[0032] A support platform 7 is provided on the workbench, and a connecting rib 9 is connected to the support platform through a pin shaft 8. A discharge bucket 10 is fixed to the end of the connecting rib, and an electric telescopic rod 11 is fixed between the support platform and the connecting rib. A dust cover 13 is connected to the top of the discharge bucket through a movable shaft 12, and dust suction holes 14 are evenly fixed on the bottom surface of the dust cover. In this embodiment, the dust cover is a plastic material cover.

[0033] A dust box 15 is fixed on the top surface of the support platform, a dust collector 16 is fixed in the dust box, the dust collector is connected to the dust suction hole through a dust guide pipe 17, a water storage tank 18 is fixed on the top of the dust box, a spray head 19 is provided on the middle top wall of the dust guide pipe, a water pump 20 is fixed in the water storage tank, the water pump is connected to the spray head through a water guide pipe, and an electric adjustment rod is provided between the dust hood and the top wall of the unloading bucket.

[0034] The workbench is provided with an inclined material guide plate 21 through a support arm 34. In this embodiment, the height of the inclined material guide plate is less than the height of the limiting convex plate. In actual application, the bottom surface of the inclined material guide plate is attached to the surface of the conveyor belt and the unloading bucket is directly behind the inclined material guide plate. In this embodiment, the most suitable inclination angle of the inclined material guide plate is between 15 and 45 degrees.

[0035] At the same time, a movable baffle 23 is connected to the rear end of the inclined material guide plate through a rotating pin 22, and a control structure 24 is arranged between the movable baffle and the bottom surface of the inclined material guide plate. During operation, the movable baffle can be tilted downward under the action of the control structure to guide the material on the inclined material guide plate into the unloading bucket, and can also be tilted upward to block the accumulation of material on the inclined material guide plate when the unloading bucket leaves the conveyor belt.

[0036] In this embodiment, for easier use, the control structure 24 includes a retractable electric rod 241 and an arched connecting block 242, and both ends of the arched connecting block are respectively connected to the end of the retractable electric rod and the back of the movable baffle through a connecting pin 243.

[0037] In this embodiment, in order to ensure the stability and reliability of use, a concave cavity 25 is opened on the top surface of the workbench, and a rotating shaft 26 is integrally formed at the center of the bottom surface of the support platform. A rotating motor 27 is fixed in the concave cavity, and the rotating motor is connected to the rotating shaft and can rotate the support platform. The rotating motor and the rotating shaft are connected by gears.

[0038] A water level sensor 28 is arranged in the water storage tank, a power cavity 29 and a cavity cover 30 are fixed in the support platform, a power supply 31 is arranged in the power cavity, and a flame retardant heat insulation layer 32 is arranged on the inner wall of the power cavity and the inner wall of the cavity cover.

[0039] Its working principle is briefly described as follows: when in use, the conveyor belt conveys coal, and at the same time the inclined guide plate is placed on the conveyor belt. When the unloading bucket is not lowered, the movable baffle is moved upward to allow the coal to accumulate on the inclined guide plate and the conveyor belt without overflowing. The unloading bucket is allowed to enter through the electric telescopic rod as needed. At this time, the movable baffle is opened downward. Under the thrust of the conveyor belt, the coal enters the unloading bucket from the inclined guide plate and the movable baffle. At this time, the dust removal hood is moved downward to close to the top of the feed port of the unloading bucket, and the coal dust is removed by the vacuum cleaner and the spray head. After the unloading bucket is full, it rises and moves to the corresponding position. At this time, the movable baffle is blocked upward, and the above operation is repeated.

[0040] The structure of the present invention is reasonable. It is not only easy to operate, but also can effectively realize the shoveling and unloading of coal. Moreover, through the dust removal hood and the dust collector, dust removal can be achieved without directly spraying water mist into the coal, which is beneficial to ensure the dryness of the coal and will not affect the quality of the coal. It is stable and reliable to use, has strong applicability and good practicality.

[0041] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A dust removal type unloading structure for coal mines, comprising a base, a bracket fixed on the base, a workbench provided on the bracket, a driving shaft and a driving motor connected to the driving shaft provided on the workbench, a conveyor belt provided on the driving shaft, characterized in that: A support platform is provided on the workbench, a connecting rib rod is connected to the support platform via a pin shaft, and a discharge bucket is fixed to the end of the connecting rib rod; An electric telescopic rod is fixed between the support platform and the connecting rib rod; The top of the unloading bucket is connected to a dust cover via a movable shaft rod, and dust suction holes are evenly fixed on the bottom surface of the dust cover; A dust collecting box is fixed on the top surface of the support platform, a dust collector is fixed in the dust collecting box, and the dust collector is connected to the dust collecting hole through a dust guide pipe; A water storage tank is fixed on the top of the dust collecting box, a spray head is provided on the middle top wall of the dust guiding pipe, a water pump is fixed in the water storage tank, and the water pump is connected to the spray head through the water guiding pipe; An electric adjustment rod is arranged between the dust removal cover and the top wall of the discharge bucket.

2. A dust removal type unloading structure for coal mines according to claim 1, characterized in that: The workbench is provided with an inclined material guide plate through a support arm, the bottom surface of the inclined material guide plate is attached to the surface of the conveyor belt and the unloading bucket is located directly behind the inclined material guide plate; The rear end of the inclined material guide plate is connected to a movable baffle plate via a rotating pin, and a control structure is provided between the movable baffle plate and the bottom surface of the inclined material guide plate; The movable baffle can be tilted downward under the action of the control structure to guide the material on the inclined material guide plate into the discharge bucket, and can also be tilted upward to block the accumulation of material on the inclined material guide plate when the discharge bucket leaves the conveyor belt.

3. A dust removal type unloading structure for coal mines according to claim 2, characterized in that: The control structure includes a retractable electric rod and an arched connecting block; The two ends of the arched connecting block are respectively connected to the end of the retractable electric rod and the back side of the movable baffle through connecting pins.

4. A dust removal type unloading structure for coal mines according to claim 3, characterized in that: A concave cavity is formed on the top surface of the workbench, and a rotating shaft is integrally formed at the center of the bottom surface of the support platform; A rotating motor is fixed in the concave cavity, and the rotating motor is connected to the rotating shaft and can rotate the supporting platform.

5. A dust removal type unloading structure for coal mines according to claim 4, characterized in that: A water level sensor is provided in the water storage tank; A power cavity and a cavity cover are fixed in the support platform, a power supply is arranged in the power cavity, and a flame retardant heat insulation layer is arranged on the inner wall of the power cavity and the inner wall of the cavity cover.

6. A dust removal type unloading structure for coal mines according to claim 5, characterized in that: Limiting convex plates are integrally formed on both sides of the workbench, and the edges of the conveyor belt are pressed against the inner walls of the limiting convex plates.

7. A dust removal type unloading structure for coal mines according to claim 6, characterized in that: The height of the inclined material guiding plate is smaller than the height of the limiting convex plate.

8. A dust removal type unloading structure for coal mines according to claim 7, characterized in that: The dust removal cover is a cover body made of plastic material.

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