CN113446836A

CN113446836A - Uplifting type environment-friendly drying equipment for coal particles

Info

Publication number: CN113446836A
Application number: CN202111008111.3A
Authority: CN
Inventors: 张建国
Original assignee: Haimen Xinghong Environmental Protection Technology Co Ltd
Current assignee: Haimen Xinghong Environmental Protection Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-09-28
Anticipated expiration: 2041-08-31
Also published as: CN113446836B

Abstract

The invention discloses raised coal particle environment-friendly drying equipment, which belongs to the technical field of coal drying, and can be used for flatly paving coal particles on a drying disc, utilizing the traction effect of a linkage rod on a raised film to enable the raised film to be raised upwards to softly turn the coal particles, meanwhile, the raised film can effectively absorb heat on the outer side of coal, utilizing the fluidity of heat-conducting fluid after recovering the shape, and promoting extension films distributed around the ring array to be extruded and expanded, and adapting to the turned coal particles, and performing sufficient contact bonding along the elastic deformation of gaps among the coal particles to uniformly and sufficiently release the absorbed heat to the coal particles.

Description

Uplifting type environment-friendly drying equipment for coal particles

Technical Field

The invention relates to the technical field of coal drying, in particular to raised type environment-friendly drying equipment for coal particles.

Background

The coal drying process is a special technical measure for preparing coking coal by drying the charged coal in advance to reduce the moisture content to below 6% and then charging the coal. Has the effects of stabilizing the operation of the coke oven, improving the mechanical strength of cementing, reducing the heat consumption of coking and the like.

The current drying mode is mainly a heating and drying mode, evaporated moisture in coal is taken away by hot air through heat transfer, the used drying carrier is a roller, in the rotating process of the roller, heat transfer is carried out on the coal through the inner wall of the roller, meanwhile, the rolling roller can turn over the coal, and then the coal can be in contact with the coal as uniformly as possible.

However, in the rolling process of the existing roller to coal, a large amount of coal is still accumulated at the bottom under the influence of gravity, the lifting height in the coal turning process is limited, the turning amplitude is small, especially when the humidity is large, the coal is adhered together, the lifting height of the coal is lower, the drying effect is further influenced, and although the drying effect on the coal can be improved due to the increase of the turning amplitude, the coal is easily cracked.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a raised type environment-friendly drying device for coal particles, the coal particles can be flatly paved on the drying plate, the lifting film is lifted upwards to turn over the coal particles softly by utilizing the traction effect of the linkage rod on the lifting film, and meanwhile, the lifted lifting film can effectively absorb the heat outside the coal, then the shape is recovered, and the fluidity of the heat-conducting fluid is utilized to cause the extending films distributed around the annular array of the extending films to be extruded and expanded, and the coal particles are adapted to be turned over, and are in elastic deformation along gaps among the coal particles to be fully contacted and attached, so that the absorbed heat is uniformly and fully released to the coal particles, compared with the existing roller drying mode, the invention can quickly and efficiently dry coal particles on the premise of ensuring higher yield.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A raised type coal particle environment-friendly drying device comprises a drying cylinder, a hot air pipe is installed on the side wall of the drying cylinder, a cover body is installed at the upper end of the drying cylinder, a power supply box is installed at the upper end of the cover body, the lower end of the power supply box is electrically connected with an electric push rod, the lower end of the electric push rod is fixedly connected with a lifting plate, a plurality of drying discs which are uniformly distributed are fixedly connected with the inner bottom end of the drying cylinder, coal particles are laid on the drying discs, a linkage rod is fixedly connected between the drying discs and the lifting plate, each drying disc comprises a shaping disc body, a raised film and a plurality of extension films, the raised films are fixedly connected with the linkage rod, a main hole is formed in the center of the shaping disc body, the raised films are connected to the inner side of the main hole in an embedded manner, a plurality of auxiliary holes which are distributed in an annular array manner are further formed in the shaping disc body, and the extension embedded films are connected to the inner side of the auxiliary hole, and the shaping disc body is filled with heat-conducting fluid.

Furthermore, the heat-conducting fluid is a mixture of heat-conducting sand and heat-conducting oil, the mass ratio is 2:1, good fluidity can be maintained to meet the deformation of the raised film and the extended film, and heat can be effectively conducted.

Furthermore, the volume of the heat-conducting fluid is larger than the volume of the shaping disc body, so that the expansion state of one of the swelling film and the extension film is ensured under a normal state, the extension film can retract when the swelling film swells, on one hand, the coal particles are not easily turned to form a barrier, on the other hand, the coal particles can be adapted by elastic deformation after being turned, so that a good drying effect is always kept, and the extension film can expand and extend into gaps of the coal particles when the swelling film retracts.

Further, the design disk body adopts the stereoplasm heat conduction material to make, it all adopts the elasticity heat conduction material to make to rise the membrane and extend the membrane, and the elasticity of uplift membrane is superior to and extends the membrane, guarantees that the membrane that rises has sufficient elasticity and extrudees the heat conduction fluid and fill the inflation to extending the membrane.

Furthermore, the outer surface of the swelling membrane is covered with a plurality of densely distributed heat-gathering scales, and the heat-gathering scales close to the edges are covered on the heat-gathering scales on the inner side of the swelling membrane, so that the heat-gathering scales can improve the strength of the swelling membrane and are not easy to generate large deformation, coal particles can be effectively turned over, and meanwhile, the heat absorption and heat conduction can be faster under the action of the heat-gathering scales.

Further, gather hot scale and include outer contact, annular limit membrane and inflation gas piece, outer contact is kept away from uplift membrane center department one end and is passed through elastic connection between inflation gas piece and the uplift membrane, all the other marginal areas of outer contact pass through between annular limit membrane and the uplift membrane sealing connection, gather hot scale and when following uplift membrane uplift to external world, the swell phenomenon can take place for outer contact under the spring action of inflation gas piece to inhale to outer contact in with external hot-air, increase simultaneously and external environment's area of contact, can gather the heat very fast, and when contracting along with the uplift membrane, release away inspiratory hot-air under the extrusion of coal granule, can further improve the heating effect to coal granule, can take over the steam after the evaporation simultaneously.

Further, the outer contact piece is made of hard heat conduction materials, the annular side membrane is made of elastic air-tight materials, and the expansion air block is made of elastic air-tight materials.

Further, install the electrical heating piece in the lifter plate, the trace adopts the heat conduction material to make, and the trace runs through the extension membrane and extends to the design disk body inboard, can heat the drying dish through lifter plate and trace initiative, though the energy consumption improves to some extent, can keep the drying dish to be in higher temperature all the time to improve the drying efficiency to the coal granule.

Furthermore, the outer surfaces of the shaping tray body, the extension film and the outer contact piece are all covered with fluff layers, the fluff layers are made of water-absorbing fibers, on one hand, the fluff layers can protect the extension film and reduce dust flying, on the other hand, moisture on coal particles can be actively absorbed, and therefore the drying effect on the coal particles is improved.

Further, the using method comprises the following steps:

s1, spreading the coal particles on a drying tray, and then introducing hot air to circularly heat the coal particles;

s2, starting the electric push rod to control the lifting plate to ascend, and further pulling the raised membrane to be raised by the linkage rod, so that the coal particles are turned over integrally, and meanwhile, the extended membrane retracts;

s3, controlling the lifting plate to descend, enabling the raised film to retract after the coal particles release and absorb heat, enabling the extension film to expand, performing self-adaptive extension along the turned coal particles, and fully heating the coal particles;

and S4, repeating the above processes until the moisture content of the coal particles is lower than 6%, and finishing drying the coal particles.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, the coal particles can be flatly paved on the drying disc, the traction effect of the linkage rod on the swelling film is utilized, the swelling film is enabled to swell upwards to turn the coal particles softly, meanwhile, the swelling film after swelling can effectively absorb heat outside the coal, then the shape is recovered, and the fluidity of the heat-conducting fluid is utilized, so that the extending film distributed around the annular array is enabled to be extruded and expanded, the extending film adapts to the turned coal particles, elastic deformation is generated along gaps among the coal particles to perform sufficient contact fitting, the absorbed heat is uniformly and sufficiently released to the coal particles, and compared with the existing roller drying mode, the high-efficiency drying device can rapidly perform high-efficiency drying on the coal particles on the premise of ensuring high yield.

(2) The capacity of the heat-conducting fluid is larger than the volume of the shaping disc body, one of the bulging film and the extension film is in an expansion state under a normal state, and the extension film can retract when the bulging film bulges, so that the coal particles are not easily turned to form a barrier, and the coal particles can be elastically deformed to adapt after being turned, so that a good drying effect is always kept, and the extension film can expand and extend into gaps of the coal particles when the bulging film retracts.

(3) The outer surface of the swelling membrane is covered with a plurality of densely distributed heat-gathering scales, and the heat-gathering scales close to the edges are covered on the heat-gathering scales on the inner side of the swelling membrane, so that the heat-gathering scales can improve the strength of the swelling membrane, are not easy to generate large deformation, can effectively turn over coal particles, and can absorb heat and conduct heat more quickly under the action of the heat-gathering scales.

(4) Gather hot scale and include outer contact, annular limit membrane and inflation gas piece, outer contact is kept away from the one end of uplift membrane center department and is passed through elastic connection between inflation gas piece and the uplift membrane, all the other marginal areas of outer contact pass through sealing connection between annular limit membrane and the uplift membrane, gather hot scale and when following the uplift membrane uplift to external world, the swell phenomenon can take place for outer contact under the spring action of inflation gas piece, thereby inhale external hot-air to in the outer contact, increase simultaneously and external environment's area of contact, can gather the heat very fast, and when contracting along with the uplift membrane, release away inhaled hot-air under coal granule's squeezing action, can further improve the heating effect to coal granule, can take over the steam after the evaporation simultaneously.

(5) The outer surfaces of the shaping disc body, the extension film and the outer contact piece are all covered with fluff layers, the fluff layers are made of water-absorbing fibers, on one hand, the fluff layers can protect the extension film and reduce flying of dust, on the other hand, moisture on coal particles can be actively absorbed, and therefore the drying effect on the coal particles is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the drying pan of the present invention when it is not raised;

FIG. 3 is a schematic structural view of the drying pan of the present invention when raised;

FIG. 4 is a schematic structural view of a drying tray according to the present invention;

FIG. 5 is an external view of the drying pan of the present invention when it is raised;

FIG. 6 is a schematic structural view of heat-accumulating flakes of the present invention;

FIG. 7 is a schematic view of the structure at A in FIG. 6;

FIG. 8 is a schematic structural view of the heat-accumulating flakes before and after extrusion;

FIG. 9 is a schematic view of the stretched film of the present invention when retracted;

FIG. 10 is a schematic structural view of the stretched film of the present invention when deformed.

The reference numbers in the figures illustrate:

1 drying cylinder, 2 hot air pipes, 3 cover bodies, 4 power boxes, 5 electric push rods, 6 lifting plates, 7 linkage rods, 8 drying discs, 81 shaping disc bodies, 82 bulging films, 83 extending films, 9 heat-gathering scales, 91 external contact sheets, 92 annular edge films and 93 expansion air blocks.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, an environment-friendly drying apparatus for raised coal particles comprises a drying cylinder 1, a hot air pipe 2 is installed on the side wall of the drying cylinder 1, a cover body 3 is installed on the upper end of the drying cylinder 1, a power supply box 4 is installed on the upper end of the cover body 3, an electric push rod 5 is electrically connected to the lower end of the power supply box 4, a lifting plate 6 is fixedly connected to the lower end of the electric push rod 5, a plurality of drying trays 8 which are uniformly distributed are fixedly connected to the inner bottom end of the drying cylinder 1, coal particles are laid on the drying trays 8, a linkage rod 7 is fixedly connected between the drying trays 8 and the lifting plate 6, each drying tray 8 comprises a shaping tray body 81, a raised film 82 and a plurality of extension films 83, the raised film 82 is fixedly connected to the linkage rod 7, a main hole is formed in the center of the shaping tray body 81, the raised film 82 is connected to the inner side of the main hole in an embedded manner, a plurality of auxiliary holes which are distributed in an annular array manner are further formed in the shaping tray body 81, and the extension film 83 is embedded and connected to the inner side of the auxiliary hole, and the shaping tray body 81 is filled with a heat-conducting fluid.

The heat-conducting fluid is a mixture of heat-conducting sand and heat-conducting oil, the mass ratio is 2:1, good fluidity can be maintained to meet the deformation of the raised film 82 and the extended film 83, and heat can be effectively conducted.

The volume of the heat-conducting fluid is larger than that of the shaping tray body 81, so that the swelling film 82 and the extension film 83 are in an expansion state under a normal state, the extension film 83 retracts when the swelling film 82 swells, on one hand, the coal particles are not easy to block, on the other hand, the coal particles can be adapted by elastic deformation after being flipped, so that a good drying effect is always kept, and the extension film 83 can expand and extend into gaps of the coal particles when the swelling film 82 retracts.

The shaping tray body 81 is made of hard heat conduction materials, the ridge film 82 and the extension film 83 are made of elastic heat conduction materials, the elasticity of the ridge film 82 is superior to that of the extension film 83, and the ridge film 82 is guaranteed to have enough elasticity to extrude heat conduction fluid to fill and expand the extension film 83.

Referring to fig. 5, the outer surface of the raised film 82 is covered with a plurality of densely distributed heat-collecting scales 9, and the heat-collecting scales 9 near the edges are covered on the heat-collecting scales 9 at the inner sides thereof, so that the heat-collecting scales 9 can improve the strength of the raised film 82, are not easy to generate large deformation, can effectively turn over coal particles, and can absorb heat and conduct heat more quickly under the action of the heat-collecting scales 9.

Referring to fig. 6-9, the heat collecting scale 9 includes an external contact 91, an annular edge film 92 and an expansion air block 93, one end of the external contact 91 far from the center of the swelling film 82 is elastically connected with the swelling film 82 through the expansion air block 93, and the rest edge area of the external contact 91 is hermetically connected with the swelling film 82 through the annular edge film 92, so that when the heat collecting scale 9 swells outside along with the swelling film 82, the external contact 91 is swelled under the elastic force of the expansion air block 93, thereby sucking the outside hot air into the external contact 91, increasing the contact area with the outside environment, rapidly collecting heat, and releasing the sucked hot air under the extrusion action of the coal particles when the swelling film 82 retracts, further improving the heating effect of the coal particles, and bringing out the evaporated water vapor.

The outer contact piece 91 is made of hard heat conducting material, the annular edge film 92 is made of elastic air-tight material, and the expansion air block 93 is made of elastic air-tight material.

Install the electrical heating piece in the lifter plate 6, trace 7 adopts the heat conduction material to make, and trace 7 runs through and extends membrane 83 and extend to design disk body 81 inboard, can heat drying tray 8 through lifter plate 6 and trace 7 initiative, though the energy consumption improves to some extent, can keep drying tray 8 to be in higher temperature all the time to improve the drying efficiency to the coal granule.

The outer surfaces of the shaping disc body 81, the extension film 83 and the outer contact piece 91 are all covered with fluff layers, the fluff layers are made of water-absorbing fibers, on one hand, the fluff layers can protect the extension film 83 and reduce dust flying, on the other hand, the fluff layers can actively absorb moisture on coal particles, and therefore the drying effect on the coal particles is improved.

When in use, the coal particles are flatly paved on the drying tray 8, and then hot air is introduced to circularly heat the coal particles; starting the electric push rod 5 to control the lifting plate 6 to ascend, and further pulling the rising film 82 to rise by the linkage rod 7, so that the coal particles are turned over integrally, and meanwhile, the extension film 83 retracts; the lifting plate 6 is controlled to descend, the swelling film 82 begins to retract after the coal particles release and absorb heat, meanwhile, the extension film 83 begins to expand and carries out self-adaptive extension along the turned coal particles, and the coal particles are fully heated; and repeating the process until the water content of the coal particles is lower than 6%, and finishing the drying of the coal particles.

Referring to fig. 10, the coal particles are heated with high encapsulation mainly by the self-adaptive deformation of the extension film 83, and the protrusion of the protrusion film 82 is used for turning over the coal particles, so as to absorb the external heat for supplying in real time, and then the hot air carried by the heat-collecting flakes 9 is used for further improving the heating effect and taking away the evaporated water vapor.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a uplift formula coal granule environmental protection drying equipment, includes drying cylinder (1), install hot-blast main (2) on drying cylinder (1) lateral wall, lid (3), its characterized in that are installed to drying cylinder (1) upper end: the drying device is characterized in that a power supply box (4) is installed at the upper end of the cover body (3), the lower end of the power supply box (4) is electrically connected with an electric push rod (5), the lower end of the electric push rod (5) is fixedly connected with a lifting plate (6), a plurality of drying discs (8) which are uniformly distributed are fixedly connected with the inner bottom end of the drying cylinder (1), coal particles are laid on the drying discs (8), a linkage rod (7) is fixedly connected between the drying discs (8) and the lifting plate (6), each drying disc (8) comprises a sizing disc body (81), a swelling film (82) and a plurality of extension films (83), the swelling film (82) is fixedly connected with the linkage rod (7), a main hole is formed in the center of the sizing disc body (81), the swelling film (82) is connected to the inner side of the main hole in an embedded manner, a plurality of auxiliary holes which are distributed in an annular array manner are further formed in the sizing disc body (81), and the extension films (83) are connected to the inner side of the auxiliary hole, the shaping tray body (81) is filled with heat-conducting fluid, the heat-conducting fluid is a mixture of heat-conducting sand and heat-conducting oil, the mass ratio is 2:1, the shaping tray body (81) is made of hard heat-conducting materials, the bulging film (82) and the extension film (83) are both made of elastic heat-conducting materials, and the elasticity of the bulging film (82) is superior to that of the extension film (83).

2. The raised coal particle environment-friendly drying equipment as claimed in claim 1, wherein: the volume of the heat-conducting fluid is larger than the volume of the shaping disc body (81).

3. The raised coal particle environment-friendly drying equipment as claimed in claim 1, wherein: the outer surface of the raised film (82) is covered with a plurality of densely distributed heat-gathering scales (9), and the heat-gathering scales (9) close to the edges are covered on the heat-gathering scales (9) on the inner side of the raised film.

4. The raised coal particle environment-friendly drying equipment as claimed in claim 3, wherein: gather hot scale (9) and include outer contact (91), annular limit membrane (92) and inflation gas piece (93), outer contact (91) are kept away from and are risen elastic connection between membrane (82) and swell membrane (93) through inflation gas piece (93) in the one end of membrane (82) center department, all the other marginal areas of outer contact (91) are through sealed connection between annular limit membrane (92) and the membrane (82) of rising.

5. The raised coal particle environment-friendly drying equipment as claimed in claim 4, wherein: the outer contact piece (91) is made of hard heat conduction materials, the annular edge film (92) is made of elastic air-tight materials, and the expansion air block (93) is made of elastic air-tight materials.

6. The raised coal particle environment-friendly drying equipment as claimed in claim 1, wherein: install the electrical heating piece in lifter plate (6), trace (7) adopt the heat conduction material to make, and trace (7) run through and extend membrane (83) and extend to design disk body (81) inboard.

7. The raised coal particle environment-friendly drying equipment as claimed in claim 4, wherein: the outer surfaces of the shaping disc body (81), the extension film (83) and the outer contact piece (91) are all covered with fluff layers, and the fluff layers are made of water-absorbing fibers.

8. The raised coal particle environment-friendly drying equipment as claimed in claim 1, wherein: the using method comprises the following steps:

s1, spreading the coal particles on a drying tray (8), and then introducing hot air to circularly heat the coal particles;

s2, starting the electric push rod (5) to control the lifting plate (6) to ascend, and further pulling the swelling film (82) to swell by the linkage rod (7), so that the coal particles are turned over integrally, and meanwhile, the extension film (83) retracts;

s3, controlling the lifting plate (6) to descend, enabling the raised film (82) to retract after the coal particles release and absorb heat, enabling the extension film (83) to expand at the same time, performing self-adaptive extension along the turned coal particles, and fully heating the coal particles;