Equipment for directly drying coal slime in coal shed

Abstract

The utility model relates to equipment for directly drying coal slime in coal sheds, which belongs to the technical field of coal slime drying devices and comprises a plurality of coal sheds, a coal slime drying component is arranged in each coal shed, a heat preservation chamber is arranged on the periphery of each coal slime drying component, each coal slime drying component comprises a filter press truss, and the filter press truss is connected with the coal sheds. An ultrahigh pressure filter press is arranged on the filter press truss, a coal cake conveyor which extends out of the heat preservation chamber and is communicated with the other coal shed is arranged at the lower part of the filter press truss, and a conveying rack is arranged at the lower end of the front part of the coal cake conveyor; a feeding conveying assembly communicated with the ultrahigh pressure filter press through a pipeline is arranged at the rear end of the ultrahigh pressure filter press, and the feeding conveying assembly comprises a feeding pump. And the feeding pump is used for feeding the crushed and diluted coal slime. The device has the characteristics of compact structure and good operation stability. The problem of coal slime drying and conveying is solved. The coal slime is treated more efficiently, the utilization rate of the coal slime is increased, environmental pollution is reduced, and harmless treatment of the coal slime is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slime drying devices, in particular to a device for directly drying coal slime in a coal shed. Background Art

[0002] Coal slime is a by-product produced during the washing process. It has the characteristics of high humidity, high adhesion, and a lot of clay, which brings many inconveniences to the comprehensive utilization of coal slime. Therefore, before use, the coal slime needs to be processed so that its moisture content is suitable for engineering construction.

[0003] After coal mining, it is usually necessary to wash and select to remove impurities such as gangue contained in the coal. After coal washing, the coal slime needs to be dried to facilitate subsequent processing of the coal slime. Common coal slime drying is mostly done by placing the coal slime in a sealed tank and then passing hot air into it. In this method, the placement and removal of the coal slime is relatively complicated, resulting in low coal slime drying efficiency. At the same time, during the drying process, the moisture on the outside of the lumpy coal slime will harden after drying, making it difficult to dry the inside, resulting in poor coal slime drying effect and inconvenience for subsequent processing of the coal slime.

[0004] Coal slime is prone to agglomeration during the drying process, making it impossible to reuse. Traditionally, belt filter presses are used for dehydration. While this equipment is simple and reliable, the recovered slime cakes have a high water content and viscosity, making their storage, transportation, and timely and effective utilization difficult. Furthermore, the dehydrated slime cakes must be stored outdoors daily, which can easily cause environmental pollution and waste resources, and is significantly affected by weather and seasons. Therefore, improvements to coal slime drying technology are needed to improve the efficiency and effectiveness of slime treatment and reduce its environmental impact. Summary of the Invention

[0005] This utility model primarily addresses the shortcomings of existing technologies by providing a device for drying coal slime directly in a coal shed. The device features a compact structure and excellent operational stability. It solves the problem of drying and transporting coal slime, more efficiently processes coal slime, improves its utilization rate, reduces environmental pollution, and achieves harmless treatment of coal slime.

[0006] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0007] A device for directly drying coal slime in a coal shed comprises several coal sheds, each of which is provided with a coal slime drying assembly, each of which is surrounded by an insulation chamber. The assembly comprises a filter press truss, an ultrahigh-pressure filter press mounted on the filter press truss, a coal cake conveyor extending out of the insulation chamber and connected to another coal shed disposed below the filter press truss, a conveyor frame disposed at the front lower end of the coal cake conveyor, and a feed conveyor assembly disposed at the rear end of the ultrahigh-pressure filter press, connected to the ultrahigh-pressure filter press by a pipeline. The feed conveyor assembly comprises a feed pump, which delivers the pulverized, diluted coal slime.

[0008] Preferably, the feed conveying assembly further comprises a feed tank, which is installed between the ultra-high pressure filter press and the feed pump, and the ultra-high pressure filter press is provided with a feed pipe which is flange-connected to the feed tank.

[0009] Preferably, a stirring motor is provided at the upper end of the feed tank, a rotating shaft extending to the lower portion of the feed tank is provided at the lower end of the stirring motor, and a plurality of stirring rod seats are provided on the rotating shaft and are bolted to the rotating shaft. The feed pump delivers diluted coal sludge into the feed tank, where the stirring motor drives the stirring rod seats on the rotating shaft to stir the sludge to prevent agglomeration.

[0010] Preferably, a feeding chute is provided between both sides of the lower end of the ultra-high pressure filter press and the coal cake conveyor.

[0011] Preferably, a water pressing tank is provided on the side of the feed pump, and a press pump connected to the ultra-high pressure filter press via a pipeline is provided between the water pressing tank and the ultra-high pressure filter press. After the diluted coal sludge is pumped into the filter chamber of the ultra-high pressure filter press for the first dehydration, the press pump is activated to pump clean water from the water pressing tank into the diaphragm chamber of the filter press for the second dehydration.

[0012] Preferably, both sides of the upper and lower parts of the ultra-high pressure filter press are provided with handrails welded and fixed to the filter press trusses.

[0013] The utility model can achieve the following effects:

[0014] This utility model provides equipment for drying coal slime directly in a coal shed. Compared with existing technologies, it features a compact structure and excellent operational stability. It solves the problem of coal slime drying and transportation, processes coal slime more efficiently, improves its utilization rate, reduces environmental pollution, and achieves harmless treatment of coal slime. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a side structural schematic diagram of the coal slime drying component in the utility model.

[0017] Figure 3 It is a rear structural schematic diagram of the coal slime drying component in the utility model.

[0018] Figure 4 It is a schematic top view of the structure of the feed conveying assembly in the present invention.

[0019] Figure 5 It is a structural schematic diagram of the feeding tank in the utility model.

[0020] In the figure: coal shed 1, insulation room 2, coal slime drying assembly 3, coal cake conveyor 4, conveyor frame 5, ultra-high pressure filter press 6, handrail 7, filter press truss 8, feed conveying assembly 9, feed pipe 10, feed tank 11, squeeze pump 12, squeeze water tank 13, feed pump 14, stirring motor 15, rotating shaft 16, stirring rod seat 17, and blanking chute 18. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0022] Example: Figure 1-5 As shown, an apparatus for directly drying coal slime in a coal shed comprises two or more coal sheds 1. Coal slime drying assemblies 3 are provided within the coal sheds 1, and an insulation chamber 2 is provided around the outer periphery of the coal slime drying assemblies 3. The coal slime drying assemblies 3 include a filter press truss 8, on which an ultrahigh-pressure filter press 6 is mounted. Handrails 7 are welded to the filter press truss 8 on both the upper and lower sides of the ultrahigh-pressure filter press 6. A coal cake conveyor 4 is provided below the filter press truss 8, extending out of the insulation chamber 2 and connected to another coal shed 1. Dropping chutes 18 are provided between the lower ends of the ultrahigh-pressure filter press 6 and the coal cake conveyor 4. A conveyor frame 5 is provided at the lower front end of the coal cake conveyor 4. A feed conveyor assembly 9 is provided at the rear end of the ultrahigh-pressure filter press 6, connected to the ultrahigh-pressure filter press 6 by a pipeline. The feed conveyor assembly 9 includes a feed pump 14. The feed conveyor assembly 9 also includes a feed tank 11, with a stirring motor 15 mounted at its upper end. A rotating shaft 16 extending to the lower portion of the feed tank 11 is mounted at its lower end. Two stirring rod seats 17 are bolted to the rotating shaft 16 via sleeves. The feed tank 11 is installed between the ultrahigh-pressure filter press 6 and a feed pump 14. The ultrahigh-pressure filter press 6 is equipped with a feed pipe 10 connected to the feed tank 11 via a flange. A water pressure tank 13 is located to the side of the feed pump 14. A pressure pump 12 is installed between the pressure tank 13 and the ultrahigh-pressure filter press 6, connected to the ultrahigh-pressure filter press 6 via a pipeline.

[0023] In summary, this equipment for drying coal slime directly in the coal shed features a compact structure and excellent operational stability. It solves the problem of coal slime drying and transportation, processes coal slime more efficiently, improves its utilization rate, reduces environmental pollution, and achieves harmless treatment of coal slime.

[0024] 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.

[0025] 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 device for directly drying coal slime in a coal shed, characterized by: The invention comprises a plurality of coal sheds (1), wherein a coal slime drying assembly (3) is provided in the coal shed (1), an insulation chamber (2) is provided on the periphery of the coal slime drying assembly (3), the coal slime drying assembly (3) comprises a filter press truss (8), an ultra-high pressure filter press (6) is provided on the filter press truss (8), a coal cake conveyor (4) extending out of the insulation chamber (2) and connected to another coal shed (1) is provided at the lower part of the filter press truss (8), a conveyor frame (5) is provided at the lower end of the front part of the coal cake conveyor (4), and a feed conveying assembly (9) connected to the ultra-high pressure filter press (6) by a pipeline is provided at the rear end of the ultra-high pressure filter press (6), and the feed conveying assembly (9) comprises a feed pump (14).

2. The device for directly drying coal slime in a coal shed according to claim 1, characterized in that: The feed conveying assembly (9) further includes a feed tank (11), which is installed between the ultra-high pressure filter press (6) and the feed pump (14). The ultra-high pressure filter press (6) is provided with a feed pipe (10) which is flange-connected to the feed tank (11).

3. The device for directly drying coal slime in a coal shed according to claim 2, characterized in that: The upper end of the feeding tank (11) is provided with a stirring motor (15), the lower end of the stirring motor (15) is provided with a rotating shaft (16) extending to the lower part of the feeding tank (11), and the rotating shaft (16) is provided with a plurality of stirring rod seats (17) fixed to the rotating shaft (16) by bolts in a sleeve-type manner.

4. The device for directly drying coal slime in a coal shed according to claim 1, characterized in that: A material drop chute (18) is provided between the lower sides of the ultra-high pressure filter press (6) and the coal cake conveyor (4).

5. The device for directly drying coal slime in a coal shed according to claim 1, characterized in that: A squeeze water tank (13) is provided on the side of the feed pump (14), and a squeeze pump (12) connected to the ultra-high pressure filter press (6) through a pipeline is provided between the squeeze water tank (13) and the ultra-high pressure filter press (6).

6. The device for directly drying coal slime in a coal shed according to claim 1, characterized in that: Both sides of the upper and lower parts of the ultra-high pressure filter press (6) are provided with handrails (7) that are welded and fixed to the filter press truss (8).

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