An oxygen-enriched coal gas conveying device

Abstract

The present application relates to the field of conveying, in particular to an oxygen-rich coal gas conveying device, which comprises a conveying pipe, a coal conveying pipe, a coal screening assembly, a screening plate, filter holes arranged inside the screening plate, a recovery channel arranged at one end of the screening plate, a transmission plate arranged at an end face of the screening plate, and a coal drop opening arranged at one end of the transmission plate, a gas conveying assembly, a gas conveying pipeline arranged on the outer wall of the conveying pipe, an oxygen conveying pipeline arranged on the outer wall of the gas conveying pipeline, a piston arranged inside the gas conveying pipeline, and a spray head arranged on the outer wall of the gas conveying pipeline, a gas cutting-off assembly, a block ring arranged inside the gas conveying pipeline, a first support column arranged inside the block ring, and a second support column arranged on the outer wall of the piston, a connecting assembly, a round cover arranged inside the gas conveying pipeline, and a first connecting rod arranged inside the round cover, and the coal screening assembly and the gas conveying assembly are arranged to respectively add coal powder and oxygen into the conveying pipe, so that an oxygen-rich state is formed inside the conveying pipe, and the combustion efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of transportation, and in particular to an oxygen-enriched gas transportation device. Background Technology

[0002] A thermal power plant, or coal-fired power plant for short, is a factory that uses coal, oil, or natural gas as fuel to produce electricity. Its basic production process involves burning fuel in a boiler to heat water and produce steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives a turbine to rotate, converting the thermal energy into mechanical energy. The turbine then drives a generator to rotate, converting the mechanical energy into electrical energy. In thermal power plants, pulverized coal is frequently used for power generation. To improve the utilization rate of pulverized coal, it needs to be screened according to different uses, classified by diameter, to improve energy efficiency and environmental protection. Meanwhile, research shows that increasing the oxygen enrichment rate of coal gas by 1% can increase the coal gas injection rate by 6%, and increasing the oxygen enrichment rate by 3% to 4% is equivalent to increasing the blast furnace blast temperature by 200°C. Therefore, adding oxygen to pulverized coal during transportation is essential. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the existing problems, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an oxygen-enriched gas transportation device; comprising, Transport pipes, coal conveying pipes; A coal screening assembly includes a screening plate, filter holes disposed inside the screening plate, a recovery channel disposed at one end of the screening plate, a transmission plate disposed on the end face of the screening plate, and a coal discharge port disposed at one end of the transmission plate. A gas delivery assembly includes a gas delivery pipe disposed on the outer wall of the delivery pipe, an oxygen delivery pipe disposed on the outer wall of the gas delivery pipe, a piston disposed inside the gas delivery pipe, and a nozzle disposed on the outer wall of the gas delivery pipe; and, The gas shut-off assembly includes a blocking ring disposed inside the gas supply pipe, a first support disposed inside the blocking ring, and a second support disposed on the outer wall of the piston; and... The connecting assembly includes a round cover disposed inside the gas pipeline and a first connecting rod disposed inside the round cover.

[0006] As a preferred embodiment of the oxygen-enriched coal gas transportation device of the present invention, the outer wall of the coal conveying pipe is provided with an observation window, the end face of the coal conveying pipe is provided with a No. 1 motor, the outer wall of the output shaft of the No. 1 motor is fixedly connected with a stirring rod, and one end of the stirring rod extends into the interior of the coal conveying pipe. The outer wall of the stirring rod is provided with an array of push plates, and the interior of the coal conveying pipe is provided with a filter screen. A deflector plate is fixedly provided at one end of the screening plate near the transmission plate, and the coal drop port at one end of the transmission plate is connected to the inside of the coal conveying pipe.

[0007] In a preferred embodiment of the oxygen-enriched gas transport device of the present invention, a fixed plate is fixedly provided on the side of the transmission plate away from the screening plate, and a slide rail and a limiting plate are fixedly provided on the side of the transmission plate close to the fixed plate, and the end face of the transmission plate is provided with a plane and a buffer surface respectively.

[0008] In a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, a sliding plate is slidably provided on the outer wall of the slide rail, the sliding plate passes through the fixing plate and is fixedly connected to the outer wall of the screening plate, a sliding rod is fixedly connected to the outer wall of the sliding plate, the sliding rod passes through the limiting plate, a drag plate is provided at the other end of the sliding rod, and a limiting block is provided on the end face of the drag plate.

[0009] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, the transmission plate end face is provided with a worm gear, the worm gear end face is provided with a circulating track for the limit block to slide, the transmission plate end face is provided with a second motor, the outer wall of the output shaft of the second motor is fixedly connected with a worm, and the worm is meshed with the worm gear.

[0010] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, the gas transmission pipeline has a first limiting platform on its inner wall, a first inclined surface on its outer wall, a second limiting platform inside the gas transmission pipeline, and the oxygen transmission pipeline is connected to the inside of the gas transmission pipeline. The nozzle is hollow inside, and the outer wall of the nozzle is provided with a first channel. The first channel is connected to the inside of the gas supply pipe. The outer wall of the first channel is provided with a bearing. The inner wall of the bearing is fixedly connected to the outer wall of the first channel, and the outer wall of the bearing is fixedly connected to the inner wall of the gas supply pipe. The nozzle outer wall array is provided with air jets, which are connected to the interior of the nozzle. The inner wall of the first channel is provided with a first groove, and the inner wall of the first channel is provided with a notch, which is connected to the first groove and is a shaped structure.

[0011] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, the second support column is provided with a second movable channel inside, the outer wall of the second support column is provided with a first slot, one side of the first slot is provided with a first arc surface, a telescopic rod is slidably provided inside the second movable channel, and a third movable channel is provided inside the telescopic rod, and a second slot is provided inside the third movable channel. The first pillar has a fourth movable channel inside, and a limiting blade is slidably installed inside the fourth movable channel. The outer wall of the limiting blade has a second arc.

[0012] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, the fourth movable channel is provided with a first elastic element, one end of the first elastic element is fixedly connected to the limiting knife, and the other end is fixedly connected to the inner wall of the fourth movable channel. The round cover is cup-shaped, the first connecting rod passes through the inside of the round cover, the outer wall of the round cover is provided with a second inclined surface that matches the first inclined surface, and the outer wall of the first connecting rod is provided with a support rod that can slide along the inside of the first groove.

[0013] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, wherein: a ball head is fixedly provided at one end of the first connecting rod, a movable groove is provided inside the ball head, a second sliding groove is arrayed on the outer wall of the ball head, an air bladder and a sliding column are respectively provided inside the movable groove, a third inclined surface is provided on the outer wall of the sliding column, a push rod is slidably provided inside the second sliding groove, one end of the push rod abuts against the third inclined surface, and a rolling ball is provided at the other end of the push rod.

[0014] As a preferred embodiment of the oxygen-enriched gas transportation device of the present invention, the round cover is provided with a second elastic element inside.

[0015] The beneficial effects of this invention are: by setting up a coal screening assembly and a gas conveying assembly to add pulverized coal and oxygen into the transport pipe respectively, an oxygen-rich state is formed inside the transport pipe, which effectively improves combustion efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the external structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the coal conveying pipe and its internal structure in this invention.

[0018] Figure 3This is a schematic diagram of the screening plate and related structures in this invention.

[0019] Figure 4 This is a bottom view of the screening component in this invention.

[0020] Figure 5 This is a schematic diagram of the transmission plate in this invention.

[0021] Figure 6 This is a schematic cross-sectional view of the gas pipeline in this invention.

[0022] Figure 7 This is a schematic diagram of the internal structure of the gas pipeline in this invention.

[0023] Figure 8 This is a schematic cross-sectional view of the internal gas compression structure in this invention.

[0024] Figure 9 This is a schematic diagram of the connection component structure and the nozzle structure in this invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1 Reference Figures 1-7 This is the first embodiment of the present invention. This embodiment provides an oxygen-enriched gas transportation device, in which oxygen is continuously injected through piston 103 and then sprayed into transportation pipe A through nozzle 104.

[0029] Transport pipe A, coal conveying pipe B; The coal screening assembly K includes a screening plate K1, a filter hole K1-1 inside the screening plate K1, a recovery channel K2 at one end of the screening plate K1, a transmission plate K3 at the end face of the screening plate K1, and a coal drop port K3-1 at one end of the transmission plate K3. The gas delivery assembly 100 includes a gas delivery pipe 101, an oxygen delivery pipe 102 disposed on the outer wall of the gas delivery pipe 101, a piston 103 disposed inside the gas delivery pipe 101, and a nozzle 104 disposed on the outer wall of the gas delivery pipe 101; and, The gas shut-off assembly 200 includes a blocking ring 201 disposed inside the gas supply pipe 101, a first support 201a disposed inside the blocking ring 201, and a second support 202 disposed on the outer wall of the piston 103; and, The connecting assembly 300 includes a round cover 301 disposed inside the gas pipeline 101 and a first connecting rod 301a disposed inside the round cover 301.

[0030] Among them, the coal conveying pipe B is fixedly installed above the transport pipe A and is connected to the transport pipe A. One end of the transport pipe A is connected to a fan, which can blow away the coal dust falling inside the coal conveying pipe B. The main function of the screening component K is to screen the coal dust to allow it to burn better and more completely. The screening plate K1 has filter holes K1-1 on its surface, and the upper surface of the screening plate K1 is a slope. One end of the bottom is connected to the recovery channel K2. The coal dust that does not meet the requirements is transported to the coal mill for re-crushing through the recovery pipe K2. The transmission plate K3 is set below the screening plate K1. The upper surface of the screening plate K1 is also a slope. One end of the bottom is connected to the coal drop port K3-1, which is connected to the inside of the coal conveying pipe B.

[0031] The gas delivery pipe 101 connects to the interior of the transport pipe A; the piston 103 is tightly attached to the inner wall of the gas delivery pipe 101, and its sliding is achieved by a telescopic motor. The piston 103 mainly functions to seal one end of the gas delivery pipe 101 and simultaneously compress the gas inside the pipe, increasing the internal pressure; the size of the blocking ring 201 is larger than the radius of the oxygen delivery pipe 102. When the piston 103 moves toward the nozzle 104, the second support 202 fixedly connected to the side of the piston 103 near the oxygen delivery pipe 102 pushes the blocking ring 201, blocking... The plug ring 201 blocks the opening of the oxygen delivery pipe 102, preventing the piston 103 from sliding along the inside of the gas delivery pipe 101 while squeezing the internal gas out of the gas delivery pipe 101 through the oxygen delivery pipe 102, thus preventing the formation of internal high pressure. At the same time, the round cover 301 is slidably set inside the gas delivery pipe 101. When the piston 103 moves to the point where the second support 202 can push the first connecting rod 301a, the round cover 301 slides, and the high-pressure gas inside the gas delivery pipe 101 quickly enters the nozzle 104 and is sprayed into the inside of the transport pipe A, increasing the internal oxygen content and forming oxygen-enriched coal gas in the transport pipe A.

[0032] Example 2 Reference Figures 1-5 This is the first embodiment of the present invention, which provides a coal powder screening mechanism to screen coal powder with larger particles to ensure complete combustion in the later stage.

[0033] Specifically, the outer wall of the coal conveying pipe B is provided with an observation window B1, the end face of the coal conveying pipe B is provided with a No. 1 motor B2, the outer wall of the output shaft of the No. 1 motor B2 is fixedly connected with a stirring rod B2-1, and one end of the stirring rod B2-1 extends into the interior of the coal conveying pipe B. The outer wall of the stirring rod B2-1 is provided with an array of push plates B2-2, and the interior of the coal conveying pipe B is provided with a filter screen B3. A deflector plate K1-2 is fixedly installed at one end of the screening plate K1 near the transmission plate K3, and the coal drop port K3-1 at one end of the transmission plate K3 is connected to the inside of the coal conveying pipe B.

[0034] A fixing plate K3-2 is fixed on the side of the transmission plate K3 away from the screening plate K1, and a slide rail K3-3 and a limiting plate K3-4 are fixed on the side of the transmission plate K3 close to the fixing plate K3-2. A plane K3-5 and a buffer surface K3-6 are respectively provided on the end face of the transmission plate K3.

[0035] An observation window B1, filled with glass, is provided on the outer wall of the coal conveying pipe B to facilitate observation by staff to check whether the internal filter screen B3 is clogged. A motor B2 is fixedly connected to the upper surface of the coal conveying pipe B. An agitator B2-1 is fixedly connected to the outer wall of the output shaft of motor B2. The agitator B2-1 extends to the filter screen B3, and a pusher plate B2-2 is fixedly connected to the outer wall of the agitator B2-1 near the filter screen B3. Motor B2 drives the agitator B2-1 to rotate, and the pusher plate B2-2 pushes the coal dust on the surface of the filter screen B3, preventing... To prevent coal powder from being squeezed and clogged, the filter screen B3 is blocked, preventing the coal powder from falling into the transport pipe A. At the same time, the main function of the filter screen is to make the coal powder fall more loosely, which is conducive to the coal powder flowing evenly from the transport pipe A into the combustion furnace. The lower surface of the screening plate K1 is fixedly connected to the push plate K1-2, which contacts the plane K3-5 on the upper surface of the transmission plate K3. After being screened from the filter port K3-1, the coal powder falls into the interior of the transmission plate K3, and is then pushed to the buffer surface K3-6 by the push plate K1-2, and then slides into the coal conveying pipe B from the coal drop port K3-1.

[0036] The lower surface of the transmission plate K3 is fixedly connected to a fixing plate K3-2, and there are two fixing plates K3-2. The other end of the fixing plate K3-2 is fixedly connected to the ground. The lower surface of the transmission plate K3 is fixedly connected to a slide rail K3-3 and two limiting plates K3-4, and the limiting plates K3-4 are U-shaped.

[0037] The slide rail K3-3 has a sliding plate K4 on its outer wall. The sliding plate K4 passes through the fixed plate K3-2 and is fixedly connected to the outer wall of the screening plate K1. The slide rail K4 has a sliding rod K5 fixedly connected to its outer wall. The sliding rod K5 passes through the limiting plate K3-4. The other end of the sliding rod K5 has a drag plate K5-1. The end face of the drag plate K5-1 has a limiting block K5-1-1.

[0038] Among them, the slide plate K4 slides along the outer wall of the slide rail K3-3. The outer wall of the slide rail K3-3 has a slide rail groove. The middle part of the slide plate K4 has a protrusion and a protrusion that can slide along the inside of the slide rail groove. The two ends of the slide plate K4 pass through the fixed plate K3-2 and are fixedly connected to the outer wall of the screening plate K1. This allows the slide plate K4 to slide along the outer wall of the slide rail K3-3 without falling off. At the same time, it can drive the screening plate K1 to move while sliding back and forth. The push plate K1-2 on the lower surface of the screening plate K1 can push back and forth on the surface of the plane K3-5 to push the coal powder into the coal conveying pipe B. The slide rod K5 slides along the inside of the U-shaped limiting plate K3-4. One end is fixedly connected to the outer wall of the slide plate K4, and the other end is fixedly connected to the drag plate K5-1. The upper surface of the drag plate K5-1 is fixedly connected to the limiting block K5-1-1.

[0039] The end face of the transmission plate K3 is provided with a worm gear K6, and the end face of the worm gear K6 is provided with a circulating track K6-1 for the limit block K5-1-1 to slide. The end face of the transmission plate K3 is provided with a second motor K7, and the outer wall of the output shaft of the second motor K7 is fixedly connected with a worm K8, which meshes with the worm gear K6.

[0040] The transmission plate K3 has a second motor K7 fixed on its lower surface. The output shaft of the second motor K7 is fixedly connected to a screw K8. Both sides of the worm K8 are equipped with worm wheels K6. The worm wheels K6 can rotate by means of a hole and shaft. When the worm K8 rotates, it drives the worm wheels K6 on both sides to rotate. The circulating track K6-1 is shaped like four arcs connected together. The arc-shaped track is designed to allow the slide plate K4 to move back and forth when the worm wheels K6 rotate.

[0041] During operation, motors B2-2 and K7 need to be started. Motor K7 drives worm gear K8 to rotate, which in turn drives worm wheel K6 to rotate, causing slide plate K4 to move back and forth. Both ends of slide plate K4 are fixedly connected to the outer wall of screening plate K1. As slide plate K4 moves, it drives screening plate K1 to move back and forth. Coal powder on screening plate K1 enters the transmission plate K2. When screening plate K1 moves back and forth, it pushes coal powder on plane K3-5 into buffer surface K3-6. This pushing action also prevents coal powder from accumulating and affecting screening efficiency. Qualified coal powder will enter transport pipe A through coal conveying pipe B, and then be enriched with oxygen and blown into the combustion furnace. At the same time, unqualified coal powder will be driven by the back and forth movement of screening plate K1, entering the recovery channel K2 from the inclined plane for re-crushing.

[0042] Example 3 Reference Figures 1-8 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that, in order to prevent the internal gas from being evacuated and forming a pressure difference with the outside when the piston 103 reciprocates, thus preventing it from reciprocating, the piston 103 is not allowed to reciprocate.

[0043] Specifically, the gas pipeline 101 has a first limiting platform 101a on the inner wall, a first inclined surface 101a-1 on the outer wall of the first limiting platform 101a, a second limiting platform 101b inside the gas pipeline 101, and the oxygen pipeline 102 is connected to the inside of the gas pipeline 101.

[0044] Among them, the first limiting platform 101a on the inner wall of the gas pipeline is a chamfered bevel on the side near the nozzle 104, and the second limiting platform 101b inside the gas pipeline 101 is an annular frustum. Its function is to limit the reciprocating motion of the blocking ring 201 to prevent the blocking ring 201 from moving continuously with the piston 103, so that the process of compressing air cannot block the oxygen pipeline 102 in time.

[0045] The nozzle 104 is hollow inside, and the outer wall of the nozzle 104 is provided with a first channel 104b, which is connected to the interior of the gas pipeline 101. The outer wall of the first channel 104b is provided with a bearing 105, and the inner wall of the bearing 105 is fixedly connected to the outer wall of the first channel 104b. The outer wall of the bearing 105 is also fixedly connected to the inner wall of the gas pipeline 101.

[0046] The nozzle 104 has an array of air jets 104a on its outer wall, which are connected to the interior of the nozzle 104. The inner wall of the first channel 104b has a first groove 104b-1 and a notch 104b-2, which are connected to the first groove 104b-1 and have a V-shaped structure.

[0047] The nozzle 104 is a disc-shaped structure with a hollow interior. Its outer wall is arrayed with air jets 104a, each jet being an oblique through-hole that connects the interior and exterior of the nozzle 104. When high-pressure gas rapidly enters the nozzle 104, it is ejected through the oblique jets 104a, creating an impact that causes the gas to rotate and be ejected, thus more evenly mixing the gas inside the gas pipeline 101 with the coal gas. A first channel 104b is fixedly connected to the side of the nozzle 104 closest to the gas pipeline 101. The first channel 104b connects to the inside of the nozzle 104 and the other end connects to the inside of the gas supply pipe 101. A bearing 105 is fixedly connected to the outer wall of the first channel 104b. The bearing 105 is used to realize the rotational connection between the nozzle 104 and the gas supply pipe 101. The first groove 104b-1 on the inner wall of the first channel 104b is an inclined groove, and the first groove 104b-1 is connected to the notch 104b-2. The notch 104b-2 is V-shaped. There are two notches and two grooves 104b-1. The two V-shaped notches 104b-2 are connected.

[0048] The second support column 202 has a second movable channel 202a inside, and a first slot 202b is provided on the outer wall of the second support column 202. A first arc surface 202b-1 is provided on one side of the first slot 202b. A telescopic rod 203 is slidably provided inside the second movable channel 202a. A third movable channel 203a is provided inside the telescopic rod 203. A second slot 203a-1 is provided inside the third movable channel 203a.

[0049] The second support column 202 has a second movable channel 202a inside, and a spring is installed inside the second movable channel 202a. The outer wall of the second movable channel 202 has a first groove 202b with a radius smaller than that of the outer wall of the second support column 202. The first groove 202b has a first arc surface 202b-1 on the side near the nozzle 104. A telescopic rod 203 slides inside the second movable channel 202a. The third movable channel 203a inside the telescopic rod 203 connects to the outside of the telescopic rod 203, and the second groove 203a-1 inside the third movable channel 203a is an annular groove that fits the inner wall.

[0050] The first pillar 201a has a fourth movable channel 201a-1 inside, and a limiting knife 204 is slidably provided inside the fourth movable channel 201a-1. The outer wall of the limiting knife 204 has a second arc 204a.

[0051] Among them, the blocking ring 201 is a ring structure, and two first pillars 201a are fixedly connected to the inner wall. The fourth movable channel 201a-1 inside the first pillar 201a leads to the outside, and the outer wall of the limiting knife 204 slidably disposed inside is in contact with the inner wall of the fourth movable channel 201a-1. The side of the limiting knife 204 near the telescopic rod 203 has an arc-shaped second arc 204a.

[0052] The fourth active channel 201a-1 is provided with a first elastic element 205. One end of the first elastic element 205 is fixedly connected to the limiting knife 204, and the other end is fixedly connected to the inner wall of the fourth active channel 201a-1.

[0053] Among them, the first elastic element 205 inside the fourth active channel 201a-1 is a compression spring, one end of which is fixedly connected to the inner wall of the fourth active channel 201a-1, and the other end is fixedly connected to the limiting knife 204 near the inner wall of the fourth active channel 201a-1.

[0054] It should be noted that when the telescopic rod 203 pushes the blocking ring 201, due to the spring inside the second active channel 202a, the telescopic rod 203 will first push the blocking ring 201. Then, after the blocking ring 201 touches the first limiting platform 101a, the telescopic rod will slide along the inside of the second active channel 202a. The telescopic rod 203 cannot slide out of the second active channel 202a, as there is a limiting platform at the opening connecting the second active channel 202a to the outside, which can restrict the telescopic rod 203 from sliding out of the second active channel.

[0055] In summary, starting the telescopic motor drives the piston 103 to reciprocate. When the piston 103 moves towards the nozzle 104, the telescopic rod 203 abuts against the two limiting blades 204, pushing the blocking ring 201 to slide along the inner wall of the gas pipeline. When the blocking ring 201 contacts the first limiting platform 101a, the end of the telescopic rod 203 near the limiting blade 204 slides along the outer wall of the second arc surface 204a of the outer wall of the limiting blade 204, pushing the limiting blade 204 to slide inside the fourth active channel 201a-1, while simultaneously squeezing the first elastic element 205. Subsequently, the telescopic rod 203 abuts against the round cover 301, and the telescopic rod 203 slides inside the second active channel 202a, simultaneously entering the second active channel 202a to squeeze the spring. During this process, the piston... 103 continuously moves and compresses the gas inside the gas pipeline 101, creating a high-pressure environment inside. When the telescopic rod 203 touches the bottom of the second active channel 202a, at the same time, the limiting knife 204 enters the first slot 202b and begins to push the round cover 301. The round cover 301 leaves the first limiting platform 101a, and the gas quickly enters the nozzle 104. At this time, the piston 103 continues to move, and the gas continues to be pushed. When the high-pressure gas enters the smaller nozzle 104, it quickly rushes out from the jet nozzle 104a. Since the jet nozzle 104a is oblique, the gas ejection is equivalent to having an oblique cutting force on the disc, which allows the nozzle 104 to rotate and spray gas in different directions, so that the gas can be better mixed with the gas inside the transport pipeline. When piston 103 moves back, the same principle applies: as second pillar 202 moves back, first slot 202b drags limit knife 204, simultaneously driving blocking ring 201 to move. During this process, as round cover 301 resets, the gas leading to nozzle 104 is drawn back as piston 103 moves. As round cover 301 contacts first limit platform 101a, the gas is drawn back into the other side of first limit platform 101a inside gas delivery pipe 101, compensating for the air pressure during piston 103's sliding of blocking ring 201, preventing internal negative pressure that would prevent piston from moving. At the same time, when round cover 301 re-blocks first limit platform 101a, oxygen delivery pipe 102 begins to deliver gas to gas delivery pipe 101, internal pressure gradually recovers, and piston moves unimpeded.

[0056] Example 4 Reference Figures 1-9 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that, in order to make the operation of the whole device smoother, the telescopic rod 203 and the round cover 301 are connected by the connecting component 300, so as to make the internal reciprocating motion smoother.

[0057] Specifically, the round cover 301 is cup-shaped, the first connecting rod 301a passes through the inside of the round cover 301, the outer wall of the round cover 301 is provided with a second inclined surface 301b that is adapted to the first inclined surface 101a-1, and the outer wall of the first connecting rod 301a is provided with a sliding support rod 301a-1 that can slide along the inside of the first sliding groove 104b-1.

[0058] The round cover 301 is a cup-shaped object with an open end near the nozzle 104 and a closed end. The outer wall of the closed section is provided with a second inclined surface 301b that fits against the first inclined surface 101a-1. This is mainly to achieve the function of gas isolation. The gas pipeline 101 is divided into two chambers by the first limiting platform 101a. The first connecting rod 301a passes through the round cover 301, with one end extending into the interior of the first movable channel 104b. Two support rods 301a-1 are fixed on the outer wall, and the two support rods 301a-1 extend into the interior of the first sliding groove 104b-1 respectively.

[0059] One end of the first connecting rod 301a is fixedly provided with a ball head 302. The ball head 302 has a movable groove 302a inside. The outer wall of the ball head 302 is provided with a second sliding groove 302b. The movable groove 302a is provided with an airbag 303 and a sliding column 304 respectively. The outer wall of the sliding column 304 is provided with a third inclined surface 304a. The second sliding groove 302b is provided with a push rod 305. One end of the push rod 305 abuts against the third inclined surface 304a. The other end of the push rod 305 is provided with a rolling ball 306.

[0060] The first connecting rod 301a extends to the outside of the round cover 301 at one end away from the support rod 301a-1, and is fixedly connected to a ball head 302. The ball head 302 has a movable groove 302a inside, and an air bladder 303 at the bottom of the movable groove 302a. A sliding column 304 is fixedly connected to the surface of the air bladder 303. The sliding column 304 is a draft body, and its outer wall forms a third inclined surface 304a. The outer wall of the ball head 302 is provided with a second sliding groove 302b. The radius of the push rod 305 slidably disposed inside the second sliding groove 302b is adapted to the radius of the second sliding groove 302b. The radius of the opening of the second sliding groove 302b near the outside is smaller than the radius of the inside, so that only a part of the outer wall of the rolling ball 306 is exposed outside the ball head 302. At the same time, one end of the push rod 305 abuts against the surface of the third inclined surface 304a, and the other end contacts the outer surface of the rolling ball 306.

[0061] The round cover 301 has a second elastic element 307 inside.

[0062] The second elastic element 307 is a compression spring, one end of which is fixedly connected to the inner wall of the gas pipeline 101 near the nozzle 104, and the other end extends into the inside of the round cover 301 and is fixedly connected to the bottom surface of the round cover 301.

[0063] In summary, when the piston 103 moves towards the nozzle 104, the telescopic rod 203 contacts the ball head 302, and the telescopic rod 203 begins to slide along the interior of the second movable channel 202a. When the spring in the second movable channel 202a cannot be compressed by the telescopic rod 203, the telescopic rod 203 begins to push the round cover 301 to move, while simultaneously compressing the second elastic element 307. When the round cover 301 leaves the surface of the first limiting platform 101a, the support rod 301a-1 slides along the first sliding groove 104b-1. When the second elastic element 307 is compressed, the round cover 301 is not easily rotated, and the support rod 301a-1 pushes the first channel 104b to rotate, causing the nozzle 104 to rotate, and high-pressure gas enters the interior of the nozzle 104. The gas is ejected through the nozzle 104a, which continues to drive the nozzle 104 to rotate. When the round cover 301 touches the bottom of the gas supply pipe 101 near the nozzle 104, the piston 103 continues to move. The ball 306 inside the ball head 302 begins to be squeezed by the inner wall of the third active channel 203a and begins to move inward, pushing the push rod 305 inward. At the same time, the push rod 305 slides along the outer wall of the third inclined surface 304a, and the slide column 304 squeezes the air bag 303. When the ball 306 slides along the inner wall of the third active channel 203a to the second slot 203a-1, the air bag 303 pushes the slide column 305 to move, and the ball 306 enters the interior of the second slot 203a-1. The telescopic rod 203 is connected to the ball head 302. When piston 103 moves back, support rod 301a-1 moves back and enters notch 104b-2, beginning to slide along the inner wall of notch 104b-2. At this point, regardless of its angle, it can slide along the inner wall of notch 104b-2 into the interior of the first groove 104b-1. Simultaneously, the first groove 202b on the outer wall of the second support 202 drives the blocking ring 201 to slide, gradually revealing the opening of the oxygen delivery pipe 102. When the blocking ring 201 contacts the second limiting platform 101b... The limiting knife 204 will slide along the outer wall of the first arc surface 202b-1, the piston 103 continues to move, the telescopic rod 203 begins to slide along the inside of the second active channel 202a. When the telescopic rod 203 can no longer slide, the piston 103 continues to move, the inner wall of the third active channel 203a begins to squeeze the ball 306. Similarly, the push rod 305 is pushed to squeeze the third inclined surface 304a, and the slide column 304 is pushed to squeeze the airbag 303. When the ball head 302 slides out of the third active channel 203a, the ball 306 resets.

[0064] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An oxygen-enriched gas transport device, characterized in that: include, Transport pipe (A), coal conveying pipe (B); The coal screening assembly (K) includes a screening plate (K1), a filter hole (K1-1) inside the screening plate (K1), a recycling channel (K2) at one end of the screening plate (K1), a transmission plate (K3) at the end face of the screening plate (K1), and a coal drop port (K3-1) at one end of the transmission plate (K3). A deflector plate (K1-2) is fixedly provided at one end of the screening plate (K1) near the transmission plate (K3), and the coal drop port (K3-1) at one end of the transmission plate (K3) is connected to the inside of the coal conveying pipe (B). A fixing plate (K3-2) is fixedly provided on the side of the transmission plate (K3) away from the screening plate (K1), and a slide rail (K3-3) and a limiting plate (K3-4) are fixedly provided on the side of the transmission plate (K3) close to the fixing plate (K3-2). The end face of the transmission plate (K3) is provided with a plane (K3-5) and a buffer surface (K3-6). The gas delivery assembly (100) includes a gas delivery pipe (101) disposed on the outer wall of the delivery pipe (A), an oxygen delivery pipe (102) disposed on the outer wall of the gas delivery pipe (101), a piston (103) disposed inside the gas delivery pipe (101), and a nozzle (104) disposed on the outer wall of the gas delivery pipe (101); and, The gas shut-off assembly (200) includes a blocking ring (201) disposed inside the gas supply pipe (101), a first support (201a) disposed inside the blocking ring (201), and a second support (202) disposed on the outer wall of the piston (103); and, The connecting assembly (300) includes a round cover (301) disposed inside the gas pipeline (101) and a first connecting rod (301a) disposed inside the round cover (301). The gas pipeline (101) has a first limiting platform (101a) on its inner wall, a first inclined surface (101a-1) on its outer wall, a second limiting platform (101b) inside the gas pipeline (101), and the oxygen pipeline (102) is connected to the inside of the gas pipeline (101). The nozzle (104) is hollow inside, and the outer wall of the nozzle (104) is provided with a first channel (104b). The first channel (104b) is connected to the interior of the gas supply pipe (101). The outer wall of the first channel (104b) is provided with a bearing (105). The inner wall of the bearing (105) is fixedly connected to the outer wall of the first channel (104b), and the outer wall of the bearing (105) is fixedly connected to the inner wall of the gas supply pipe (101). The nozzle (104) has an array of air jets (104a) on its outer wall, which are connected to the interior of the nozzle (104). The inner wall of the first channel (104b) is provided with a first groove (104b-1) and a notch (104b-2) on its inner wall. The notch (104b-2) is connected to the first groove (104b-1) and the notch (104b-2) is a V-shaped structure. The second support column (202) has a second movable channel (202a) inside, and a first slot (202b) is provided on the outer wall of the second support column (202). A first arc surface (202b-1) is provided on one side of the first slot (202b). A telescopic rod (203) is slidably provided inside the second movable channel (202a). A third movable channel (203a) is provided inside the telescopic rod (203). A second slot (203a-1) is provided inside the third movable channel (203a). The first support column (201a) is provided with a fourth movable channel (201a-1), and a limiting knife (204) is slidably provided inside the fourth movable channel (201a-1). The outer wall of the limiting knife (204) is provided with a second arc (204a). The fourth movable channel (201a-1) is provided with a first elastic element (205), one end of the first elastic element (205) is fixedly connected to the limiting knife (204), and the other end is fixedly connected to the inner wall of the fourth movable channel (201a-1); The round cover (301) is cup-shaped. The first connecting rod (301a) passes through the interior of the round cover (301). The outer wall of the round cover (301) is provided with a second inclined surface (301b) that is adapted to the first inclined surface (101a-1). The outer wall of the first connecting rod (301a) is provided with a sliding support rod (301a-1) that can slide along the interior of the first sliding groove (104b-1).

2. The oxygen-enriched gas transport device as described in claim 1, characterized in that: The outer wall of the coal conveying pipe (B) is provided with an observation window (B1). A motor (B2) is provided at the end face of the coal conveying pipe (B). A stirring rod (B2-1) is fixedly connected to the outer wall of the output shaft of the motor (B2). One end of the stirring rod (B2-1) extends into the interior of the coal conveying pipe (B). Push plates (B2-2) are arranged in an array on the outer wall of the stirring rod (B2-1). A filter screen (B3) is provided inside the coal conveying pipe (B).

3. The oxygen-enriched gas transport device as described in claim 2, characterized in that: The slide rail (K3-3) has a sliding plate (K4) that slides on its outer wall. The sliding plate (K4) passes through the fixed plate (K3-2) and is fixedly connected to the outer wall of the screening plate (K1). The sliding plate (K4) has a sliding rod (K5) that is fixedly connected to its outer wall. The sliding rod (K5) passes through the limiting plate (K3-4). The other end of the sliding rod (K5) has a drag plate (K5-1). The end face of the drag plate (K5-1) has a limiting block (K5-1-1).

4. The oxygen-enriched gas transport device as described in claim 3, characterized in that: The transmission plate (K3) has a worm gear (K6) rotatably mounted on its end face. The end face of the worm gear (K6) has a circulating track (K6-1) for the sliding of the limiting block (K5-1-1). The transmission plate (K3) has a second motor (K7) mounted on its end face. The outer wall of the output shaft of the second motor (K7) is fixedly connected to a worm (K8), which meshes with the worm gear (K6).

5. The oxygen-enriched gas transport device as described in claim 4, characterized in that: One end of the first connecting rod (301a) is fixedly provided with a ball head (302). The ball head (302) is provided with a movable groove (302a) inside. The outer wall of the ball head (302) is provided with a second sliding groove (302b). An air bladder (303) and a sliding column (304) are respectively provided inside the movable groove (302a). The outer wall of the sliding column (304) is provided with a third inclined surface (304a). A push rod (305) is slidably provided inside the second sliding groove (302b). One end of the push rod (305) abuts against the third inclined surface (304a). The other end of the push rod (305) is provided with a rolling ball (306).

6. The oxygen-enriched gas transport device as described in claim 5, characterized in that: The round cover (301) is provided with a second elastic element (307) inside.

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