Coal slime homogenizing, crushing and diluting device

Abstract

The utility model relates to a coal slime homogenizing, crushing and diluting device, which belongs to the technical field of coal slime crushing and diluting equipment and comprises a vibrating screen pit, a vibrating screen is arranged in the vibrating screen pit, a vibrating screen guide frame is arranged at the lower end of the vibrating screen, and a deslagging and stacking area communicated with the vibrating screen pit is arranged at the rear end of the vibrating screen. A conveying and smashing assembly is arranged on the side edge of the vibrating screen, and a flow guide groove is formed between the conveying and smashing assembly and the vibrating screen. The conveying and smashing assembly comprises a smashing machine, a charging hopper is arranged at the upper end of the smashing machine, and a spiral conveyor communicated with the smashing machine through a flange pipeline is arranged between the charging hopper and the smashing machine. The device has the characteristics of compact structure, complete functions and good operation stability. The problem that the coal slime is diluted and reused after being homogenized and crushed is solved, and coal slime homogenization dequantization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slime crushing and dilution equipment, in particular to a coal slime homogenizing, crushing and diluting device. Background Art

[0002] In recent years, the washing rate of thermal coal has gradually increased. At present, most thermal coal adopts the full-size washing process of lump coal, which is usually a combined separation of heavy medium shallow trough + heavy medium cyclone. A large amount of fine coal slime is inevitably produced during the washing process. The output of coal slime generally accounts for about 8-12% of the total raw coal.

[0003] Due to the low degree of metamorphism and easy mudification of gangue, the coal slime of thermal coal generally has the characteristics of high ash content (35-50%), high moisture content (25-30%), and low calorific value (1500-3000kcal / kg). After the flocculant is added during the concentration and sedimentation process of the coal slime water, the coal slime is easy to stick together and difficult to crush. Its physical properties are in the form of lumps or cakes, which makes it difficult to mix evenly with the products of the main selection system. It is generally sold directly as a low-value product, and some coal preparation plants even directly discard it, resulting in a huge waste of resources and environmental pollution. Summary of the Invention

[0004] The utility model mainly solves the shortcomings of the existing technology and provides a coal slime homogenization, crushing and dilution device with the characteristics of compact structure, complete functions and good operating stability. It solves the problem of diluting and recycling coal slime after homogenization and crushing, and realizes the homogenization and dequantization of coal slime.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0006] A coal slime homogenization, pulverization and dilution device includes a vibrating screen pit, a vibrating screen disposed within the pit, a vibrating screen guide frame disposed at the lower end of the vibrating screen, a slag discharge and stacking area connected to the vibrating screen pit disposed at the rear end of the vibrating screen, a conveying and pulverizing assembly disposed on the side of the vibrating screen, and a guide trough disposed between the conveying and pulverizing assembly and the vibrating screen. The conveying and pulverizing assembly includes a pulverizer.

[0007] Preferably, a charging hopper is provided at the upper end of the pulverizer, and a screw conveyor connected to the pulverizer via a flange pipeline is provided between the charging hopper and the pulverizer.

[0008] Preferably, a dilution water pipe is provided above the charging hopper, and a front portion of the dilution water pipe is provided with a plurality of dilution nozzles connected to the charging hopper.

[0009] Preferably, the lower end of the screw conveyor is provided with a feeding support frame which is bolted and fixed to the screw conveyor.

[0010] Preferably, a dilution pump connected to the vibrating screen guide frame through a pipeline is provided on the side of the vibrating screen guide frame, and the crushed mud ash is transported to the coal slime storage tank through the dilution pump.

[0011] Preferably, a slag discharge slope is provided on the side of the slag discharge and stacking area.

[0012] The utility model can achieve the following effects:

[0013] The utility model provides a coal slime homogenization, crushing and dilution device, which, compared with the existing technology, has the characteristics of compact structure, complete functions and good operation stability. It solves the problem of diluting and recycling coal slime after homogenization and crushing, and realizes the homogenization and dequantization of coal slime. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a structural schematic diagram of the conveying and crushing component in the utility model.

[0016] Figure 3 It is a structural schematic diagram of the vibrating screen pit in the utility model.

[0017] In the figure: vibrating screen pit 1, vibrating screen 2, conveying and crushing assembly 3, slag discharge and stacking area 4, slag discharge slope 5, diversion trough 6, dilution pump 7, dilution water pipe 8, dilution nozzle 9, charging hopper 10, screw conveyor 11, feeding support frame 12, crusher 13, vibrating screen guide frame 14. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1 、 Figure 2 and Figure 3As shown, a coal slime homogenization, crushing and dilution device includes a vibrating screen pit 1, a vibrating screen 2 is installed in the vibrating screen pit 1, a vibrating screen guide frame 14 is installed at the lower end of the vibrating screen 2, and a dilution pump 7 is installed on the side of the vibrating screen guide frame 14 and is connected to the vibrating screen guide frame 14 through a pipeline. The crushed sludge is transported to the coal slime storage tank by the dilution pump 7. A slag discharge and storage area 4 is provided at the rear end of the vibrating screen 2 and is connected to the vibrating screen pit 1. A slag discharge slope 5 is provided on the side of the slag discharge and storage area 4. A conveying and crushing assembly 3 is provided on the side of the vibrating screen 2, and a diversion trough 6 is provided between the conveying and crushing assembly 3 and the vibrating screen 2. The conveying and crushing assembly 3 includes a crusher 13, a charging hopper 10 is provided at the upper end of the crusher 13, a dilution water pipe 8 is provided above the charging hopper 10, and a plurality of dilution nozzles 9 connected to the charging hopper 10 are provided at the front of the dilution water pipe 8. A screw conveyor 11 connected to the pulverizer 13 via a flange pipeline is provided between the charging hopper 10 and the pulverizer 13 , and a feeding support frame 12 fixedly connected to the screw conveyor 11 via bolts is provided at the lower end of the screw conveyor 11 .

[0020] Working Principle: Lumpy coal slurry is shoveled into a charging hopper 10 by a forklift, initially crushed by a screw conveyor 11, and fed into a crusher 13. The crushed coal slurry is then fed through a diversion chute 6 onto a vibrating screen 2 in a vibrating screen pit 1 for sorting. After passing through vibrating screen 2, the coal slurry ash is poured from a vibrating screen guide rack 14 into a dilution pump 7 for transport to a coal slurry storage tank. Coal slurry that fails to pass through vibrating screen 2 is discharged to a slag discharge and stockpiling area 4. The coal slurry in this area is then circulated by a forklift to a charging hopper 10 for further crushing.

[0021] In summary, the coal slime homogenization, crushing and dilution device has the characteristics of compact structure, complete functions and good operational stability. It solves the problem of diluting and recycling coal slime after homogenization and crushing, and realizes the homogenization and dequantization of coal slime.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0023] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A coal slime homogenization, crushing and dilution device, characterized by: The invention comprises a vibrating screen pit (1), wherein a vibrating screen (2) is provided in the vibrating screen pit (1), a vibrating screen guide frame (14) is provided at the lower end of the vibrating screen (2), a slag discharge and material storage area (4) connected to the vibrating screen pit (1) is provided at the rear end of the vibrating screen (2), a conveying and crushing assembly (3) is provided on the side of the vibrating screen (2), and a guide groove (6) is provided between the conveying and crushing assembly (3) and the vibrating screen (2); the conveying and crushing assembly (3) comprises a crusher (13).

2. The coal slime homogenization, pulverization and dilution device according to claim 1, characterized in that: A charging hopper (10) is provided at the upper end of the pulverizer (13), and a screw conveyor (11) is provided between the charging hopper (10) and the pulverizer (13) and is connected to the pulverizer (13) via a flange pipeline.

3. The coal slime homogenization, pulverization and dilution device according to claim 2, characterized in that: A dilution water pipe (8) is provided above the charging hopper (10), and a plurality of dilution nozzles (9) connected to the charging hopper (10) are provided at the front of the dilution water pipe (8).

4. The coal slime homogenization, pulverization and dilution device according to claim 2, characterized in that: The lower end of the screw conveyor (11) is provided with a feeding support frame (12) which is bolted and fixed to the screw conveyor (11).

5. The coal slime homogenization, pulverization and dilution device according to claim 1, characterized in that: A dilution pump (7) connected to the vibrating screen guide frame (14) through a pipeline is provided on the side of the vibrating screen guide frame (14), and the crushed mud ash is transported to the coal mud storage tank through the dilution pump (7).

6. The coal slime homogenization, pulverization and dilution device according to claim 1, characterized in that: A slag discharge slope (5) is provided on the side of the slag discharge and stacking area (4).

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