CN113499837A

CN113499837A - Coal gangue crushing and recycling device

Info

Publication number: CN113499837A
Application number: CN202110815295.8A
Authority: CN
Inventors: 汪德才; 王清; 周熠; 姚贤华; 吴靖江; 郭长龙
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-10-15

Abstract

The invention discloses a coal gangue crushing and recycling device, which comprises a crushing box, wherein the crushing box is fixed on a support frame, two feeding hoppers are arranged on the upper end surface of the crushing box, a first crushing assembly and a second crushing assembly are arranged in an inner cavity of the crushing box, a discharge hole is formed in the bottom of the crushing box, a discharge pipe is arranged at the discharge hole, a recycling box is arranged on the inner side of the support frame, the recycling box is arranged right below the discharge pipe, and a dust collection assembly is also arranged on the discharge pipe; according to the invention, the first crushing knife and the second crushing knife are arranged in a staggered manner, so that the uniformity of crushed particles can be ensured, and in addition, the crushing knives are not easy to wear.

Description

Coal gangue crushing and recycling device

Technical Field

The invention relates to the technical field of coal gangue crushing, in particular to a coal gangue crushing and recycling device.

Background

The coal gangue is solid waste discharged in the coal mining process and the coal washing process, and is a black and gray rock which has lower carbon content and is harder than coal and is associated with a coal bed in the coal forming process. Comprises tunneling waste rocks in the tunneling process of a roadway, waste rocks extracted from a top plate, a bottom plate and an interlayer in the mining process, and washing waste rocks extracted in the coal washing process.

The coal gangue is solid waste discharged in the coal mining process and the coal washing process, and is a black and gray rock which has lower carbon content and is harder than coal and is associated with a coal bed in the coal forming process. Comprises tunneling waste rocks in the tunneling process of a roadway, waste rocks extracted from a top plate, a bottom plate and an interlayer in the mining process, and washing waste rocks extracted in the coal washing process. The main components of the material are Al2O3 and SiO2, and the material also contains Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium and cobalt). Coal gangue replaces fuel: iron melting; burning the boiler; lime burning; and (5) recovering coal. Cement production: producing ordinary portland cement; producing special cement; producing clinker-free cement. Producing a building material: the coal gangue baked brick has good quality and uniform color; the coal gangue is used for producing the lightweight aggregate, and the lightweight aggregate is a porous aggregate selected for reducing the relative density of concrete; the production of coal gangue asbestos is a building material made up by using coal gangue and lime as raw material through the processes of high-temp. melting and blowing. Production of chemical products: the crystalline aluminum trichloride is prepared by taking coal gangue and hydrochloric acid which is a byproduct in the chemical industry as main raw materials and carrying out production processes of crushing, roasting, grinding, acid leaching, precipitation, concentration crystallization, dehydration and the like, and is a novel water purifying agent; preparing water glass; producing ammonium sulfate, producing SO2 from iron sulfide in coal gangue at high temperature, oxidizing to produce SO3, producing sulfuric acid when meeting water, and producing ammonium sulfate with ammonia compound.

The stone crusher can be classified into a medical stone crusher and a mining stone crusher according to the major categories. The mining stone crusher is suitable for crushing massive mine hard rocks in principle, the typical granite discharge granularity is less than or equal to 40mm and accounts for 90%, the machine can process materials with the side length of less than 100-500 mm, the compression strength can reach 350 MPa, the crushing ratio is high, the crushed materials are cubic particles, and the like. The mining stone crushing machine is a crushing machine with the particle size of more than three millimeters accounting for more than 50 percent of the total discharge amount in the discharged materials. The coal gangue needs to be crushed after being collected, and the existing crushing device has a single structure and poor crushing uniformity, so that improvement is needed.

Disclosure of Invention

The invention aims to provide a coal gangue crushing and recycling device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a broken recovery unit of gangue, includes broken case, broken case is fixed in on the support frame, two income hoppers of broken case up end installation, the broken subassembly of first broken subassembly of broken incasement chamber installation and second, the discharge gate is seted up to broken bottom of the case portion, discharge gate department installation discharging pipe, the inboard installation collection box of support frame, just the collection box sets up under the discharging pipe, still install dust absorption assembly on the discharging pipe.

Preferably, the application provides a broken recovery unit of coal gangue, wherein, first broken subassembly includes first pivot, first servo motor and the first broken sword of multi-disc, first pivot horizontal installation is in broken incasement wall, first pivot one end is connected with the transmission of the first servo motor who installs at broken incasement wall, and the equidistant installation in first pivot outside of the first broken sword of multi-disc.

Preferably, the application provides a broken recovery unit of coal gangue, wherein, the broken subassembly of second includes second pivot, second servo motor and the broken sword of multi-disc second, second pivot transverse installation is in broken incasement wall, second pivot one end is connected with the second servo motor transmission of installing at broken incasement wall, and the equidistant installation in second pivot of multi-disc second is outside, the crisscross setting of first broken sword and the broken sword of second.

Preferably, the application provides a broken recovery unit of gangue, wherein, the dust absorption subassembly includes dust absorption pipe, dust bag and dust absorption fan, dust absorption pipe one end is connected with the dust absorption mouth that sets up at the discharging pipe outer wall, the dust bag is connected to the dust absorption pipe other end, the inlet scoop and the dust absorption pipe intercommunication of dust absorption fan.

Preferably, the coal gangue crushing and recycling device provided by the application is characterized in that the surfaces of the first crushing cutter and the second crushing cutter are plated with an alloy steel wear-resistant layer.

Compared with the prior art, the invention has the beneficial effects that: the coal gangue crushing device is novel in structural design, can uniformly crush coal gangue, and can realize quick dust collection during recovery, so that dust pollution is reduced; according to the invention, the first crushing knife and the second crushing knife are arranged in a staggered manner, so that the uniformity of crushed particles can be ensured, and in addition, the crushing knives are not easy to wear.

Drawings

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

FIG. 2 is a schematic view of the dust collection assembly of the present invention;

in the figure: crushing case 1, support frame 2, go into hopper 3, discharging pipe 4, collection box 5, first pivot 6, first servo motor 7, first broken sword 8, second pivot 9, second servo motor 10, broken sword 11 of second, dust absorption pipe 12, dust bag 13 and dust absorption fan 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "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.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a broken recovery unit of gangue, includes broken case 1, broken case 1 is fixed in on the support frame 2, two income hoppers 3 of 1 up end installation of broken case, the broken subassembly of first broken subassembly of broken case 1 inner chamber installation and second, the discharge gate is seted up to broken case 1 bottom, discharge gate department

installation discharging pipe

4, 2 inboard installation collection box 5 of support frame, just collection box 5 sets up under discharging pipe 4, still install the dust absorption subassembly on discharging pipe 4.

According to the invention, the first crushing assembly comprises a first rotating shaft 6, a first servo motor 7 and a plurality of first crushing cutters 8, the first rotating shaft 6 is transversely arranged on the inner wall of the crushing box 1, one end of the first rotating shaft 6 is in transmission connection with the first servo motor 7 arranged on the outer wall of the crushing box 1, and the plurality of first crushing cutters 8 are arranged outside the first rotating shaft 6 at equal intervals; the second crushing assembly comprises a second rotating shaft 9, a second servo motor 10 and a plurality of second crushing knives 11, the second rotating shaft 9 is transversely installed on the inner wall of the crushing box 1, one end of the second rotating shaft 9 is in transmission connection with the second servo motor 10 installed on the outer wall of the crushing box 1, the plurality of second crushing knives 11 are installed outside the second rotating shaft 9 at equal intervals, and the first crushing knives 8 and the second crushing knives 11 are arranged in a staggered mode; the surfaces of the first crushing cutter 8 and the second crushing cutter 11 are coated with an alloy steel wear-resistant layer.

In addition, in the invention, the dust collection assembly comprises a dust collection pipe 12, a dust collection bag 13 and a dust collection fan 14, one end of the dust collection pipe 12 is connected with a dust collection opening arranged on the outer wall of the discharge pipe 4, the other end of the dust collection pipe 12 is connected with the dust collection bag 13, and an air suction opening of the dust collection fan 14 is communicated with the dust collection pipe 12.

The working principle is as follows: in dropping into broken case with the gangue from going into the hopper, open first servo motor and second servo motor respectively, servo motor during operation drives the pivot and rotates, and the pivot drives broken sword and rotates, and the crisscross broken sword that sets up carries out quick even breakage to the gangue, and during the discharging pipe of below was fallen into to the gangue granule after the breakage, opened dust absorption fan, dust absorption fan during operation was inhaled the dust in the discharging pipe fast, prevented the dust pollution from appearing.

In conclusion, the coal gangue crushing device is novel in structural design, can uniformly crush coal gangue, and can realize quick dust collection during recovery, so that dust pollution is reduced; according to the invention, the first crushing knife and the second crushing knife are arranged in a staggered manner, so that the uniformity of crushed particles can be ensured, and in addition, the crushing knives are not easy to wear.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a broken recovery unit of coal gangue, includes broken case (1), its characterized in that: broken case (1) is fixed in on support frame (2), two income hoppers (3) of broken case (1) up end installation, broken case (1) inner chamber installation first broken subassembly and the broken subassembly of second, the discharge gate has been seted up to broken case (1) bottom, discharge gate department installation discharging pipe (4), support frame (2) inboard installation collection box (5), just collection box (5) set up under discharging pipe (4), still install dust absorption assembly on discharging pipe (4).

2. The coal gangue crushing and recycling device according to claim 1, characterized in that: the first crushing assembly comprises a first rotating shaft (6), a first servo motor (7) and a plurality of first crushing cutters (8), the first rotating shaft (6) is transversely installed on the inner wall of the crushing box (1), one end of the first rotating shaft (6) is in transmission connection with the first servo motor (7) installed on the outer wall of the crushing box (1), and the plurality of first crushing cutters (8) are installed outside the first rotating shaft (6) at equal intervals.

3. The coal gangue crushing and recycling device according to claim 1, characterized in that: the second crushing assembly comprises a second rotating shaft (9), a second servo motor (10) and a plurality of second crushing cutters (11), the second rotating shaft (9) is transversely installed on the inner wall of the crushing box (1), one end of the second rotating shaft (9) is in transmission connection with the second servo motor (10) installed on the outer wall of the crushing box (1), the plurality of second crushing cutters (11) are installed on the outer portion of the second rotating shaft (9) at equal intervals, and the first crushing cutters (8) and the second crushing cutters (11) are arranged in a staggered mode.

4. The coal gangue crushing and recycling device according to claim 1, characterized in that: the dust collection assembly comprises a dust collection pipe (12), a dust collection bag (13) and a dust collection fan (14), one end of the dust collection pipe (12) is connected with a dust collection opening formed in the outer wall of the discharge pipe (4), the other end of the dust collection pipe (12) is connected with the dust collection bag (13), and an air suction opening of the dust collection fan (14) is communicated with the dust collection pipe (12).

5. The coal gangue crushing and recycling device according to claim 1, characterized in that: and the surfaces of the first crushing cutter (8) and the second crushing cutter (11) are plated with alloy steel wear-resistant layers.