CN116036739A - Mine return air waste heat recycling device and method - Google Patents

Abstract

The invention discloses a mine return air waste heat recycling device and a method, and relates to the technical field of mine return air waste heat recycling devices. According to the invention, the trapezoidal scraping plate is matched with the pressing seat and other parts, the output end of the hydraulic cylinder drives the pressing seat to drive the two pushing swing rods to move downwards, so that the pushing swing plate pushes the guide block to slide on the outer wall of the arched filter screen, the rectangular guide block drives the trapezoidal scraping plate to move on the outer wall of the arched filter screen, the top end of the surface of the arched filter screen is cleaned, manual operation by a worker is not required, and the overall practicability of the equipment is improved.

Description

Device and method for recovery and utilization of mine return air waste heat

technical field

The invention relates to the technical field of mine return air waste heat recovery devices, in particular to a mine return air waste heat recovery device and method.

Background technique

In the process of coal mine production, the mine return air contains very rich waste heat resources, and the temperature and humidity of the return air flow are basically stable throughout the year. It is a very high-quality low-temperature heat source, which is often directly discharged into the atmosphere during the coal mine production process. Therefore, it is wasted in vain. The existing technology usually uses the combination of heat pump technology and air spray technology to recycle the low-temperature heat energy in the return air of the mine to realize cooling in summer and heating in winter.

However, the existing mine return air waste heat recovery and utilization devices generally collect the mine return air through the return air duct, but in the process of collecting the return air, the front end of the return air duct is generally equipped with a filter screen Dust particles are filtered. Since the return air is generally continuous, the surface of the filter screen is often blocked by dust particles, which requires staff to replace and clean the filter screen regularly. It is extremely troublesome to shut down the recycling device, so we provide a mine return air waste heat recycling device and method to solve the above problems.

Contents of the invention

The object of the present invention is to provide a mine return air waste heat recovery device and method in order to solve the problem that the filter at the front end of the return air duct of the mine return air waste heat recovery device is easily blocked.

In order to achieve the above object, the present invention provides the following technical solutions: a mine return air waste heat recovery device, including a return air pipe, one end of the return air pipe is fixedly connected with an air guide shell, and the air inlet of the air guide shell An arched filter screen is fixedly connected at the position, and the outer wall of the air guide shell is fixedly connected with a return frame through a bolt assembly. A scraping mechanism is provided on the inner side of the return frame, and a guide block, the outer wall of the guide block is provided with a dust pressing assembly, and the top of the return frame is provided with a knocking member extending to the top of the arched filter screen;

The scraping mechanism includes a connection sleeve fixedly connected to the outer wall of one side of the guide block, a rectangular guide block is slidably connected to the inside of the connection sleeve, and one end of the rectangular guide block penetrates to the outside of the guide block A trapezoidal scraping plate is fixedly connected, and the trapezoidal scraping plate is attached to the outer wall of the arched filter screen, and the top end of the rectangular guide block is fixedly connected with an adjustment spring, and the top end of the adjustment spring is connected to the The sleeve is fixedly connected, and a crimping part is arranged on the inner side of the clip and the top end of the guide block.

As a further solution of the present invention: the scraping mechanism also includes swing rods arranged on the outer walls of both sides of the air guide shell, the inner side of the swing rod is provided with a through groove, and the inner side of the swing rod is fixedly connected with a rotating shaft. One end of the rotating shaft is rotatably connected to the air guiding shell, and a torsion spring is installed on one side of the outer wall of the swing lever outside the rotating shaft, and one end of the torsion spring is installed on one side of the outer wall of the air guiding shell , the outer walls on both sides of the guide block are fixedly connected with a swing seat, one end of the swing seat is fixedly connected with the swing rod, the inner side of the swing rod is fixedly connected with a scraping plate, and the scraping plate Attached to the outer wall of the arch filter.

As a further solution of the present invention: there are two groups of the swing rod, the trapezoidal scraping plate, and the guide block, and two swing rods are provided in each group, and the through groove is connected with the other swing rod. The rods are matched, and the swing rods of the two groups are arranged crosswise.

As a further solution of the present invention: the press screw includes a hydraulic cylinder fixedly connected to the inner side of the return frame, the output end of the hydraulic cylinder is connected to a pressing seat, and the outer walls on both sides of the pressing seat are fixed An auxiliary seat is connected, the inner side of the auxiliary seat is rotatably connected with a push rod, the outer wall of the guide block is fixedly connected with a push plate, and the inner side of the push plate is fixedly connected with a connection push seat, and the connection push seat The inner side of the rotatable is connected with a push and swing lever.

As a further solution of the present invention: the dust pressing assembly includes water tanks fixedly connected to the outer walls on both sides of the return frame, and a plurality of support seats are fixedly connected to one side outer wall of the guide block, and a plurality of the support seats Atomizing nozzles are installed on the inner side of the atomizing nozzle, the water inlet of the atomizing nozzle is connected with a drainage pipe, and the water inlet of the drainage pipe is fixedly connected with a telescopic hose, and one end of the telescopic hose is connected to the outlet of the water tank. Fixed connection.

As a further solution of the present invention: the knocking member includes an impact block arranged on the top of the arched filter screen, the top of the impact block is fixedly connected with a first pulling column, and the top end of the first pulling column is fixed An impact spring is connected, and the top end of the impact spring is fixedly connected to the loop frame, and the inner side of the loop frame is provided with a second pulling column, and the inner side of the loop frame is fixedly connected with a limit collar, and the The limiting collar is arranged on the outer wall of the second pulling column, the top end of the first pulling column is fixedly connected with a first pulling rope, and one end of the first pulling rope is fixedly connected with the second pulling column, so The top end of the reciprocating frame is fixedly connected with a first guide seat, and the inner side of the first guide seat is rotatably connected with a first guide wheel, and the first pull rope is attached to the outer wall of the first guide wheel. The outer wall of the pressing seat and the outer wall of the second pulling column are provided with a pulling assembly, and the outer wall of the hydraulic cylinder and the outer wall of the second pulling column are provided with a defense member.

As a further solution of the present invention: the pulling assembly includes a guide plate fixedly connected to the top of the pressing seat, one side of the outer wall of the guide plate is fixedly connected with a rectangular guide shell, and the inner side of the rectangular guide shell is slidably connected There is a trapezoidal locking block, one end of the trapezoidal locking block penetrates to the outside of the second pulling column, the top of the trapezoidal locking block is provided with a slope, and the outer wall of the other end of the trapezoidal locking block is fixedly connected with Return spring, one end of the return spring is installed in the inside of the rectangular guide shell, and the other end outer wall of the trapezoidal locking block is fixedly connected with a second pull rope on the inner side of the return spring, and the second pull rope One end of one end is fixedly connected with the shape frame, the top end of the rectangular guide shell is fixedly connected with a second guide seat, the inner side of the second guide seat is rotatably connected with a second guide wheel, and the second pull rope fits On the outer wall of the second guide wheel, the inner side of the second guide wheel is rotatably connected with a plurality of pressing wheels, and the plurality of pressing wheels are pressed against the outer wall of the second pulling rope, and the second pulling The bottom end of the column is fixedly connected with a hemispherical block.

As a further solution of the present invention: the inside of the second pulling column is provided with a fixing hole matching the trapezoidal locking block, and the inside of the rectangular guide shell is provided with a fixing hole matching the trapezoidal locking block. guide groove.

As a further solution of the present invention: the defense member includes a conical scraping block fixedly connected to the front end of the hydraulic cylinder, the inner side of the conical scraping block is attached to the outer wall of the output end of the hydraulic cylinder, the The outer wall of the conical scraping block is set as a conical surface, one side of the outer wall of the conical scraping block is fixedly connected with a rectangular block, one side of the outer wall of the second pulling column is fixedly connected with a rectangular impact plate, and the rectangular impact plate A plate is attached to the bottom end of the rectangular block.

The present invention also discloses a method for recovering and utilizing waste heat of mine return air. Using the above-mentioned device for recovering and utilizing waste heat of mine return air comprises the following steps:

S1. First, connect the return air pipe with the corresponding waste heat recovery equipment. After the air inside the mine is filtered through the arched filter and enters the inside of the return air pipe, the mine is cooled by the special waste heat recovery equipment. Utilize the waste heat in the internal return air;

S2. When it is necessary to clean the surface of the arched filter screen, start the hydraulic cylinder, and the output end of the hydraulic cylinder drives the pressing seat to drive the two push rods to move downward, thereby passing the The swaying plate pushes the guide block to slide on the outer wall of the arched filter, so that the trapezoidal scraping plate is driven by the rectangular guide block to move on the outer wall of the arched filter, and the arch filter Clean the top of the net surface;

S3. When the guide block slides on the outer wall of the arched filter net, it drives the swing rod to rotate through the rotating shaft through the swing seat, and then drives one end of the torsion spring to rotate, so that the torsion spring Twisting, the swing rod rotates and drives the scraping plate to rotate at the same time, so as to scrape the side of the arched filter net;

S4. When the surface of the arched filter needs to be cleaned, the atomizing nozzle is started at the same time, and the output end of the atomizing nozzle sprays water mist to reduce the dust cleaned by the trapezoidal scraping plate, so that the dust Dust no longer occurs. When the water mist sprayed by the atomizing nozzle is aimed at the surface of the arched filter screen, the dust on the surface of the arched filter screen will adhere to the top of the arched filter screen. The scraping of the trapezoidal scraping plate cleans it up, so as to better clean up the dust on the surface of the arched filter screen;

S5. When the pressing seat approaches the arched filter net, the trapezoidal locking block drives the second pulling column to move synchronously, so that the first pulling column is controlled by the first pulling rope Pulling, and then pulling the impact block to move away from the arched filter net, when the trapezoidal locking block moves towards the arched filter net, since one end of the second pull rope is fixed, thus Pull the trapezoidal locking block, when the trapezoidal locking block is pulled out from the fixing hole inside the second pulling column, the impact spring is no longer driven by the external force through the first pulling column The impact block is reset, so that the impact block hits the outer wall of the arched filter screen, and the trapezoidal scraping plate is vibrated through resonance, so that the surface of the arched filter screen and the trapezoidal scraping plate The agglomerated dust on the surface of the rubbing board falls, thereby improving the efficiency of cleaning the surface of the arched filter screen;

S6. When the output end of the hydraulic cylinder shrinks, the output end of the hydraulic cylinder is cleaned by the conical scraping block, and the dust on the surface is cleaned, so as to ensure that the hydraulic cylinder can operate normally, and the impact spring When the first pulling column is pushed to reset, the first pulling rope is pulled, thereby pulling the second pulling column to perform quick reset, and the rectangular block is hit by the rectangular impact plate, so that the sticky The dust attached to the output end of the hydraulic cylinder and the dust on the outer wall of the cone are vibrated down.

Compared with prior art, the beneficial effect of the present invention is:

1. Through the cooperation of the trapezoidal scraping plate and the pressing seat and other parts, the output end of the hydraulic cylinder drives the pressing seat to drive the two push rods to move downward, so that the guide block is pushed on the outer wall of the arch filter through the push swing plate. Sliding, so that the trapezoidal scraping plate is driven to move on the outer wall of the arched filter screen through the rectangular guide block, and the top of the arched filter screen surface is cleaned without manual operation by the staff, thereby improving the overall practicability of the equipment;

2. By setting the cooperation of the scraping plate and the swing rod and other parts, when the guide block slides on the outer wall of the arched filter screen, it drives the swing rod to rotate through the rotating shaft through the swing seat, and then drives one end of the torsion spring to rotate, so that the torsion spring moves forward. Twisting, the swing rod rotates and drives the scraping plate to rotate at the same time, so as to scrape the side of the arch filter;

3. By setting up the dust-pressing component, when it is necessary to clean the surface of the arch filter, start the atomizing nozzle at the same time, and the output end of the atomizing nozzle sprays water mist to reduce the dust cleaned by the trapezoidal scraping plate, so that the dust is no longer When dust is generated, when the water mist sprayed by the atomizing nozzle is aimed at the surface of the arched filter, the dust on the surface of the arched filter will adhere to the top of the arched filter, and it will be cleaned by the trapezoidal scraper. Cleaning, in order to better clean up the dust on the surface of the arch filter;

4. By setting the knocking part and the pull-out assembly, when the pressing seat approaches the arched filter net, the trapezoidal locking block drives the second pulling column to move synchronously, so that the first pulling column is pulled by the first pulling rope , and then pull the impact block to move away from the arched filter net. When the trapezoidal locking block moves towards the direction of the arched filter net, because one end of the second pull rope is fixed, the trapezoidal locking block is pulled. When the trapezoidal locking block When the block is pulled out from the fixing hole inside the second pulling column, the impact spring is no longer subject to external force and the impact block is driven by the first pulling column to reset, so that the impact block hits the outer wall of the arched filter screen, and the trapezoidal scraping is achieved through resonance. The rubbing plate vibrates, so that the agglomerated dust on the surface of the arched filter screen and the surface of the trapezoidal scraping plate falls, thereby improving the efficiency of cleaning the surface of the arched filter screen;

5. By setting up the defense parts, when the output end of the hydraulic cylinder shrinks, the output end of the hydraulic cylinder is cleaned by the conical scraping block, and the dust on the surface is cleaned, so as to ensure the normal operation of the hydraulic cylinder, and the impact spring pushes the first When the pulling column is reset, the first pulling rope is pulled, thereby pulling the second pulling column for quick reset. The rectangular block is hit by the rectangular impact plate, so that the dust adhering to the output end of the hydraulic cylinder and the dust on the outer wall of the cone surface are separated. Shake it down.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of the top of the wind guide shell of the present invention;

Fig. 3 is an enlarged view at A place in Fig. 2 of the present invention;

Fig. 4 is a schematic diagram of the top structure of the arch filter screen of the present invention;

Fig. 5 is a schematic diagram of a partial structure of the scraping mechanism of the present invention;

Fig. 6 is a structural schematic diagram of the knocking member and the pull-out assembly of the present invention;

Fig. 7 is a schematic diagram of the top structure of the pressing seat of the present invention;

Fig. 8 is a sectional view of a rectangular guide shell of the present invention;

Fig. 9 is a schematic diagram of the inner structure of the second guide wheel of the present invention.

In the figure: 1, air return pipe; 2, air guiding shell; 3, arch filter screen; 401, return frame; 402, water tank; 403, swing rod; 404, rotating shaft; 405, telescopic hose; 406, drainage Tube; 407, connecting sleeve; 408, guide block; 409, even swing seat; 410, push swing plate; 411, trapezoidal scraping plate; 412, impact block; 413, first pulling column; 414, first pulling rope ; 415, the first guide wheel; 416, the first guide seat; 417, push the swing bar; 424, rectangular impact plate; 425, conical surface; 426, the second pull rope; 427, the second guide wheel; 428, the second guide seat; 429, rectangular guide shell; 430, torsion spring; 431, Atomizing nozzle; 432, support seat; 433, rectangular guide block; 434, scraping plate; 435, through groove; 436, adjusting spring; 437, limit collar; 438, hydraulic cylinder; 439, connecting push seat; 440 , trapezoidal locking block; 441, inclined plane; 442, back-moving spring; 443, pressing wheel; 444, the second pulling column; 445, auxiliary seat.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection" and "setting" should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention.

Please refer to Figures 1 to 9. In an embodiment of the present invention, a mine return air waste heat recovery device includes a return air pipe 1, and one end of the return air pipe 1 is fixedly connected with an air guide shell 2, and the air intake of the air guide shell 2 The mouth is fixedly connected with an arched filter screen 3, and the outer wall of the air guide shell 2 is fixedly connected with a return frame 401 through a bolt assembly. Block 408, the outer wall of the guide block 408 is provided with a dust pressing assembly, and the top of the return frame 401 is provided with a knocking member extending to the top of the arched filter screen 3;

The scraping mechanism includes a connecting sleeve 407 fixedly connected to the outer wall of one side of the guide block 408. The inside of the connecting sleeve 407 is slidably connected with a rectangular guide block 433, and one end of the rectangular guide block 433 penetrates to the outside of the guide block 408 and is fixedly connected with a trapezoidal The scraping plate 411, and the trapezoidal scraping plate 411 is attached to the outer wall of the arch filter screen 3, the top of the rectangular guide block 433 is fixedly connected with an adjustment spring 436, and the top of the adjustment spring 436 is fixedly connected with the connecting sleeve 407, and the shape The inner side of the frame 401 and the top end of the guide block 408 are provided with crimping parts.

In this embodiment: the surface of the arched filter screen 3 is cleaned by the scraping mechanism, and at the same time, the dust cleaned by the scraping mechanism is subjected to dust reduction treatment by spraying water mist through the dust pressing assembly, so that the dust is agglomerated to facilitate scraping The mechanism cleans the surface of the arched filter 3 better, and at the same time hits the arched filter 3 through the knocking parts, so that the dust agglomerated on the surface of the arched filter 3 slides down from its surface, and passes through the above multiple The cooperation of the parts realizes the function of automatically cleaning the surface of the arched filter screen 3 without manual operation by staff.

Please refer to Figures 1 to 7, the scraping mechanism also includes a swing rod 403 arranged on the outer walls of both sides of the air guide shell 2, the inner side of the swing rod 403 is provided with a through groove 435, and the inner side of the swing rod 403 is fixedly connected with a rotating shaft 404, and the rotating shaft 404 One end of the torsion spring 430 is installed on one side of the outer wall of the air guide shell 2, and the two sides of the guide block 408 The outer walls are fixedly connected with a connecting swing seat 409, one end of the connecting swing seat 409 is fixedly connected with the swing rod 403, and the inner side of the swing rod 403 is fixedly connected with a scraping plate 434, and the scraping plate 434 is attached to the outer wall of the arched filter screen 3 There are two groups of swing rods 403, trapezoidal scraping plates 411, and guide blocks 408, and two swing rods 403 are provided in each group. The through groove 435 is matched with another swing rod 403, and the two groups of swing rods 403 are arranged crosswise. The pressure screw includes a hydraulic cylinder 438 fixedly connected to the inner side of the return frame 401, the output end of the hydraulic cylinder 438 is connected with a pressing seat 419, the outer walls of both sides of the pressing seat 419 are fixedly connected with an auxiliary seat 445, and the inner side of the auxiliary seat 445 Rotationally connected with a push and swing bar 417, the outer wall of the guide block 408 is fixedly connected with a push and swing plate 410, the inside of the push and swing plate 410 is fixedly connected with a push seat 439, and the inboard of the connection push seat 439 is rotatably connected with a push and swing bar 417.

In this embodiment: the output end of the hydraulic cylinder 438 drives the pressing seat 419 to drive the two push rods 417 to move downward, thereby pushing the guide block 408 to slide on the outer wall of the arched filter screen 3 through the push plate 410, thereby guiding The block 433 drives the trapezoidal scraping plate 411 to move on the outer wall of the arched filter screen 3, and the top of the arched filter screen 3 surface is cleaned, and the guide block 408 swings through the connecting seat 409 when sliding on the outer wall of the arched filter screen 3 The rod 403 rotates through the rotating shaft 404, and then drives one end of the torsion spring 430 to rotate, so that the torsion spring 430 is twisted, and the swing rod 403 rotates while driving the scraping plate 434 to rotate, so as to scrape the side of the arched filter screen 3 Rubbing, thus realizing the function of comprehensively cleaning the arched filter screen 3, thereby avoiding the arched filter screen 3 from being blocked, and this process does not require manual operation by staff.

Please refer to Fig. 1-5 emphatically, the dust pressing assembly includes the water tank 402 fixedly connected to the outer wall of both sides of the return frame 401, the outer wall of one side of the guide block 408 is fixedly connected with a plurality of support seats 432, and the inner sides of the plurality of support seats 432 are An atomizing nozzle 431 is installed, and the water inlet of the atomizing nozzle 431 is connected with a drainage pipe 406, and the water inlet of the drainage pipe 406 is fixedly connected with a flexible hose 405, and one end of the flexible hose 405 is fixedly connected with the outlet of the water tank 402.

In this embodiment: when it is necessary to clean the surface of the arched filter screen 3, the atomizing nozzle 431 is started, and the output end of the atomizing nozzle 431 sprays water mist to reduce dust on the dust cleaned by the trapezoidal scraping plate 411, thereby making the dust Dust will no longer occur. When the water mist sprayed by the atomizing nozzle 431 is aimed at the surface of the arch filter 3, the dust on the surface of the arch filter 3 will adhere to the top of the arch filter 3 and pass through the trapezoidal scraping plate. 411 is scraped to clean it, so that the dust on the surface of the arched filter screen 3 is better cleaned up.

Please refer to Fig. 1-9 emphatically, the knocking part includes the impact block 412 that is arranged on the top of the arched filter screen 3, the top of the impact block 412 is fixedly connected with the first pulling post 413, and the top of the first pulling post 413 is fixedly connected with the impact block. Spring 418, the top of the impact spring 418 is fixedly connected with the loop frame 401, the inner side of the loop frame 401 is provided with a second pulling post 444, the inside of the loop frame 401 is fixedly connected with the limit collar 437, and the limit loop 437 is set On the outer wall of the second pulling column 444, the top of the first pulling column 413 is fixedly connected with a first pulling rope 414, and one end of the first pulling rope 414 is fixedly connected with the second pulling column 444, and the top of the loop frame 401 is fixedly connected with a The first guide seat 416, the inner side of the first guide seat 416 is rotatably connected with the first guide wheel 415, the first pulling rope 414 is attached to the outer wall of the first guide wheel 415, and the outer wall of the pressing seat 419 is connected to the second pulling column 444 The outer wall of the hydraulic cylinder 438 is provided with a pulling assembly, the outer wall of the hydraulic cylinder 438 and the outer wall of the second pulling column 444 are provided with a defensive member, the pulling assembly includes a guide plate 421 fixedly connected to the top of the pressing seat 419, and one side of the outer wall of the guide plate 421 is fixedly connected. There is a rectangular guide shell 429, the inner side of the rectangular guide shell 429 is slidingly connected with a trapezoidal locking block 440, one end of the trapezoidal locking block 440 penetrates to the outside of the second pulling column 444, and the top of the trapezoidal locking block 440 is provided with a slope 441, The outer wall of the other end of the trapezoidal locking block 440 is fixedly connected with a back-moving spring 442, and one end of the back-moving spring 442 is installed in the inside of the rectangular guide shell 429, and the other end outer wall of the trapezoidal locking block 440 is positioned at the inner side of the back-moving spring 442 and is fixedly connected with a second Pull the rope 426, one end of the second pull rope 426 is fixedly connected with the loop frame 401, the top of the rectangular guide shell 429 is fixedly connected with the second guide seat 428, and the inner side of the second guide seat 428 is rotatably connected with the second guide wheel 427, The second pulling rope 426 is attached to the outer wall of the second guide wheel 427, and the inner side of the second guiding wheel 427 is connected with a plurality of pressing wheels 443, and the plurality of pressing wheels 443 are pressed against the outer wall of the second pulling rope 426. The bottom end of the second pulling column 444 is fixedly connected with a hemispherical block 420, the inside of the second pulling column 444 is provided with a fixing hole matching the trapezoidal locking block 440, and the inside of the rectangular guide shell 429 is provided with a hole matching the trapezoidal locking block 440. Matching guide slots.

In this embodiment: when the pressing seat 419 approaches the arched filter net 3, the trapezoidal locking block 440 drives the second pulling column 444 to move synchronously, thereby pulling the first pulling column 413 through the first pulling rope 414, Then pull the impact block 412 to move away from the arched filter net 3, and when the trapezoidal locking block 440 moves towards the arched filter net 3, because one end of the second pulling rope 426 is fixed, the trapezoidal locking block 440 is pulled , when the trapezoidal locking block 440 is pulled out from the inner fixing hole of the second pulling column 444, the impact spring 418 is no longer subjected to external force and resets by driving the impact block 412 through the first pulling column 413, so that the impact block 412 hits the arch The outer wall of the filter screen 3 vibrates the trapezoidal scraping plate 411 through resonance, so that the agglomerated dust on the surface of the arched filter screen 3 and the surface of the trapezoidal scraping plate 411 falls, thereby improving the impact on the arched filter screen 3 Surface cleaning efficiency.

Please refer to Fig. 3 emphatically, the defensive part includes a conical scraping block 423 fixedly connected to the front end of the hydraulic cylinder 438, the inner side of the conical scraping block 423 is attached to the outer wall of the output end of the hydraulic cylinder 438, and the outer wall of the conical scraping block 423 Set as a conical surface 425, one side outer wall of the conical scraping block 423 is fixedly connected with a rectangular block 422, one side outer wall of the second pulling column 444 is fixedly connected with a rectangular impact plate 424, and the rectangular impact plate 424 is attached to the rectangular block 422 bottom end.

In this embodiment: when the output end of the hydraulic cylinder 438 shrinks, the output end of the hydraulic cylinder 438 is cleaned by the tapered scraping block 423, and the dust on its surface is cleaned up, so as to ensure that the hydraulic cylinder 438 can operate normally, and the impact spring 418 pushes When the first pulling column 413 is reset, the first pulling rope 414 is pulled, thereby pulling the second pulling column 444 to perform a quick reset. The rectangular block 422 is hit by the rectangular impact plate 424, thereby outputting the adhesive on the hydraulic cylinder 438. The dust at the end and the dust on the outer wall of the cone 425 vibrate down.

In combination with the above-mentioned mine return air waste heat recovery and utilization device, a method for mine return air waste heat recovery and utilization is provided, which specifically includes the following steps:

S1. First, connect the return air pipe 1 with the corresponding waste heat recovery equipment. After the air inside the mine is filtered through the arch filter 3 and enters the interior of the return air pipe 1, the mine is returned to the inside of the mine through the special waste heat recovery equipment. use the waste heat in the

S2. When it is necessary to clean the surface of the arched filter screen 3, start the hydraulic cylinder 438, and the output end of the hydraulic cylinder 438 drives the pressing seat 419 to drive the two push rods 417 to move downward, thereby pushing the guide block through the push plate 410 408 slides on the outer wall of the arched filter screen 3, thereby driving the trapezoidal scraping plate 411 to move on the outer wall of the arched filter screen 3 through the rectangular guide block 433, and cleans the top of the arched filter screen 3 surface;

S3. When the guide block 408 slides on the outer wall of the arched filter screen 3, it drives the swing rod 403 to rotate through the rotating shaft 404 through the swing seat 409, and then drives one end of the torsion spring 430 to rotate, so that the torsion spring 430 is twisted, and the swing rod 403 is rotated. The rotation drives the scraping plate 434 to rotate simultaneously, so that the side of the arched filter screen 3 is scraped;

S4. When the surface of the arched filter 3 needs to be cleaned, the atomizing nozzle 431 is started, and the output end of the atomizing nozzle 431 sprays water mist to reduce the dust cleaned by the trapezoidal scraping plate 411, so that the dust will no longer occur. Dust, when the water mist sprayed by the atomizing nozzle 431 is aimed at the surface of the arched filter screen 3, the dust on the surface of the arched filter screen 3 is adhered to the top of the arched filter screen 3, and is scraped by the trapezoidal scraping plate 411. Rub it to clean it, so that the dust on the surface of the arched filter screen 3 can be better cleaned;

S5. When the pressing seat 419 approaches the arch filter net 3, the trapezoidal locking block 440 drives the second pulling column 444 to move synchronously, thereby pulling the first pulling column 413 through the first pulling rope 414, and then pulling and impacting The block 412 moves away from the arched filter screen 3, and when the trapezoidal locking block 440 moves toward the arched filter screen 3, because one end of the second pulling rope 426 is fixed, the trapezoidal locking block 440 is pulled. When the locking block 440 is pulled out from the inner fixing hole of the second pulling column 444, the impact spring 418 is no longer subjected to external force and the impacting block 412 is driven by the first pulling column 413 to reset, so that the impacting block 412 hits the arch filter net 3, the trapezoidal scraping plate 411 is vibrated by resonance, so that the agglomerated dust on the surface of the arched filter screen 3 and the surface of the trapezoidal scraping plate 411 falls, thereby improving the cleaning efficiency of the arched filter screen 3 surface efficiency;

S6. When the output end of the hydraulic cylinder 438 shrinks, the output end of the hydraulic cylinder 438 is cleaned by the tapered scraping block 423, and the dust on its surface is cleaned up, so as to ensure the normal operation of the hydraulic cylinder 438, and the impact spring 418 pushes the first pull When the column 413 is reset, the first pulling rope 414 is pulled, thereby pulling the second pulling column 444 for quick reset, and the rectangular block 422 is hit by the rectangular impact plate 424, so that the dust adhering to the output end of the hydraulic cylinder 438 and the The dust on the outer wall of the cone surface 425 shakes down.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technology of the present invention Any equivalent replacement or change of the scheme and its inventive concepts shall fall within the protection scope of the present invention.

Claims (10)

1. A mine return air waste heat recycling device, comprising an air return pipe (1), is characterized in that one end of the air return pipe (1) is fixedly connected with an air guide shell (2), and the air guide shell ( 2) The air inlet is fixedly connected with an arched filter screen (3), the outer wall of the wind guide shell (2) is fixedly connected with a return frame (401) through a bolt assembly, and the return frame (401) The inner side is provided with a scraping mechanism, and a guide block (408) is provided above the arched filter screen (3), and the outer wall of the guide block (408) is provided with a dust pressing assembly. The top is provided with a knocking member extending to the top of the arched filter screen (3); The scraping mechanism includes a connection sleeve (407) fixedly connected to the outer wall of one side of the guide block (408), and a rectangular guide block (433) is slidably connected to the inside of the connection sleeve (407). One end of the guide block (433) penetrates to the outside of the guide block (408) and is fixedly connected with a trapezoidal scraping plate (411), and the trapezoidal scraping plate (411) is attached to the arched filter screen (3 ), the top of the rectangular guide block (433) is fixedly connected with an adjustment spring (436), and the top of the adjustment spring (436) is fixedly connected with the connecting sleeve (407), and the clip ( The inner side of 401) and the top end of the guide block (408) are provided with crimping parts. 2. A mine return air waste heat recycling device according to claim 1, characterized in that the scraping mechanism further comprises swing rods (403) arranged on the outer walls of both sides of the wind guiding shell (2), The inside of the swing rod (403) is provided with a through slot (435), and the inside of the swing rod (403) is fixedly connected with a rotating shaft (404). Rotational connection, one side of the outer wall of the swing lever (403) is located on the outside of the shaft (404) and a torsion spring (430) is installed, and one end of the torsion spring (430) is installed on the wind guide shell (2) The outer wall on one side of the guide block (408) is fixedly connected with a swing seat (409), and one end of the swing seat (409) is fixedly connected with the swing rod (403). A scraping plate (434) is fixedly connected to the inner side of the swing rod (403), and the scraping plate (434) is attached to the outer wall of the arched filter screen (3). 3. A mine return air waste heat recycling device according to claim 2, characterized in that, the swing rod (403), the trapezoidal scraping plate (411), and the guide block (408) are provided with Two groups, each group of said swing rods (403) is provided with two, said through slots (435) are matched with another said swing rods (403), and said two groups of said swing rods (403) are arranged in cross. 4. A mine return air waste heat recovery and utilization device according to claim 2, characterized in that, the press-rotating member includes a hydraulic cylinder (438) fixedly connected to the inner side of the return frame (401), and the The output end of the hydraulic cylinder (438) is connected with a pressing seat (419), the outer walls of both sides of the pressing seat (419) are fixedly connected with auxiliary seats (445), and the inner side of the auxiliary seat (445) is rotatably connected with A push rod (417), the outer wall of the guide block (408) is fixedly connected with a push plate (410), and the inner side of the push plate (410) is fixedly connected with a connection push seat (439), and the connection push The inboard of seat (439) is rotatably connected with push and swing bar (417). 5. A mine return air waste heat recovery and utilization device according to claim 4, characterized in that, the dust pressing assembly includes water tanks (402) fixedly connected to the outer walls of both sides of the return frame (401), the A side outer wall of the guide block (408) is fixedly connected with a plurality of support seats (432), and the inner sides of the plurality of support seats (432) are equipped with atomizing nozzles (431), and the atomizing nozzles (431) The water inlet is connected with a drainage pipe (406), and the water inlet of the drainage pipe (406) is fixedly connected with a telescopic hose (405), and one end of the telescopic hose (405) is connected to the drain of the water tank (402). The port is fixedly connected. 6. A mine return air waste heat recovery and utilization device according to claim 4, characterized in that, said knocking member comprises an impact block (412) arranged at the top of said arched filter screen (3), said The top of the impact block (412) is fixedly connected with a first pulling column (413), and the top of the first pulling column (413) is fixedly connected with an impact spring (418), and the top of the impact spring (418) is connected with the The loop frame (401) is fixedly connected, and the inner side of the loop frame (401) is provided with a second pulling column (444), and the inside of the loop frame (401) is fixedly connected with the limit collar (437), so The limiting collar (437) is arranged on the outer wall of the second pulling column (444), and the top end of the first pulling column (413) is fixedly connected with a first pulling rope (414), and the first pulling rope One end of (414) is fixedly connected with the second pulling column (444), the top end of the loop frame (401) is fixedly connected with a first guide seat (416), and the inner side of the first guide seat (416) A first guide wheel (415) is rotatably connected, and the first pulling rope (414) is attached to the outer wall of the first guide wheel (415), and the outer wall of the pressing seat (419) is connected to the second pulley. The outer wall of the pulling column (444) is provided with a pulling assembly, and the outer wall of the hydraulic cylinder (438) and the outer wall of the second pulling column (444) are provided with a defense member. 7. A mine return air waste heat recovery and utilization device according to claim 6, characterized in that, the pulling assembly includes a guide plate (421) fixedly connected to the top of the pressing seat (419), and the guide plate One side of the outer wall of the plate (421) is fixedly connected with a rectangular guide shell (429), the inner side of the rectangular guide shell (429) is slidably connected with a trapezoidal locking block (440), and one end of the trapezoidal locking block (440) Penetrating to the outside of the second pulling column (444), the top of the trapezoidal locking block (440) is provided with a slope (441), and the outer wall of the other end of the trapezoidal locking block (440) is fixedly connected with a return spring (442), one end of the return spring (442) is installed inside the rectangular guide shell (429), and the outer wall of the other end of the trapezoidal locking block (440) is fixed inside the return spring (442) A second pull rope (426) is connected, one end of the second pull rope (426) is fixedly connected to the loop frame (401), and the top end of the rectangular guide shell (429) is fixedly connected to the second guide seat (428), the inner side of the second guide seat (428) is rotatably connected with a second guide wheel (427), and the second pull rope (426) is attached to the outer wall of the second guide wheel (427), The inner side of the second guide wheel (427) is rotatably connected with a plurality of pressing wheels (443), and the plurality of pressing wheels (443) are pressed against the outer wall of the second pulling rope (426). The bottom ends of the two pulling columns (444) are fixedly connected with hemispherical blocks (420). 8. The device for recovery and utilization of mine return air waste heat according to claim 7, characterized in that, the second pulling column (444) is provided with a fixed lock matching with the trapezoidal locking block (440). The inside of the rectangular guide shell (429) is provided with a guide groove matching the trapezoidal locking block (440). 9. A mine return air waste heat recovery and utilization device according to claim 6, characterized in that, the defense member includes a conical scraping block (423) fixedly connected to the front end of the hydraulic cylinder (438), the The inner side of the tapered scraping block (423) is attached to the outer wall of the output end of the hydraulic cylinder (438), and the outer wall of the tapered scraping block (423) is set as a conical surface (425). One side outer wall of rub block (423) is fixedly connected with rectangular block (422), and one side outer wall of described second pulling post (444) is fixedly connected with rectangular impact plate (424), and described rectangular impact plate (424) sticks close at the bottom of the rectangular block (422). 10. A mine return air waste heat recovery and utilization method, characterized in that, adopting a mine return air waste heat recovery and utilization device according to any one of claims 1-9, comprising the following steps: S1. Firstly, connect the return air pipe (1) with the corresponding waste heat recovery equipment, when the air inside the mine is filtered through the arch filter (3) and enters the return air pipe (1) , Utilize the waste heat in the return air inside the mine through special waste heat recovery equipment; S2. Clean the surface of the arched filter screen (3) through the scraping mechanism, and at the same time spray water mist through the dust-pressing assembly to reduce dust on the dust cleaned by the scraping mechanism, so that the dust is agglomerated to facilitate scraping The rubbing mechanism cleans the surface of the arch filter (3) better, and at the same time hits the arch filter (3) through the knocking parts, so that the surface of the arch filter (3) Pieces of dust slide off its surface.

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