Coal gangue solid waste treatment production line

Abstract

The utility model relates to a coal gangue solid waste treatment production line, and aims to solve the technical problem that large-scale assembly line work cannot be performed in coal gangue solid waste treatment. According to the technical scheme, the system comprises a main production line, microorganism adding equipment and a control system, the main production line comprises a feeding machine, a crusher, a screening machine, a main conveyor, a double-shaft spiral stirrer and a discharging conveyor, the coal gangue bin, the feeding machine, the crusher and the screening machine are sequentially connected end to end, an undersize product discharging opening of the screening machine is connected with the main conveyor, an oversize product discharging opening is connected with the crusher, and the double-shaft spiral stirrer is connected with the discharging conveyor. The main conveyor, the double-shaft spiral stirrer, the discharging conveyor and the silo are sequentially connected end to end; a bacteria liquid tank of the microorganism adding equipment is connected with a first metering pump, a second metering pump is externally connected with a water source, and the first metering pump and the second metering pump are connected to a feeding hole of the double-shaft spiral stirrer after being converged. The device can realize full-automatic operation, does not need manual participation, and is suitable for a production line for absorbing the coal gangue solid waste on a large scale.

Description

Technical Field

[0001] This utility model belongs to the field of solid waste treatment technology, specifically relating to a coal gangue solid waste treatment production line. Background Technology

[0002] Patent 202211356873.7 discloses a utility model patent entitled "A Coal Gangue-Based Artificial Soil and Its Preparation Method and Application", which mentions a method of treating coal gangue with microorganisms. However, since microorganisms and coal gangue need to react fully, especially in large-scale solid waste treatment production, the amount of microbial agents and domestic waste needs to be added precisely according to the material ratio. The particle size of coal gangue is also related to the treatment and microbial reaction speed. In particular, tens of thousands of tons of coal gangue need to be treated every day in large-scale coal mine production. If the daily treatment volume of tens of thousands of tons is to wait for a long reaction time, a huge site is required. The above technology also requires regular turning, which obviously does not meet the requirements for large-scale, automated treatment. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide a coal gangue solid waste treatment production line.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A coal gangue solid waste treatment production line includes a main production line, a microbial addition device, a moisture adjustment device, and a control system;

[0006] The main production line includes a feeder, a crusher, a screening machine, a main conveyor, a twin-shaft spiral mixer, and a discharge conveyor. The feeder's inlet is connected to a coal gangue silo, and its outlet is connected to the crusher's inlet. The crusher's outlet is connected to the screening machine's inlet. The screening machine's undersize outlet is connected to the main conveyor, and its oversize outlet is connected to the crusher's inlet. The other end of the main conveyor is connected to the twin-shaft spiral mixer's inlet, and the twin-shaft spiral mixer's outlet is connected to the discharge conveyor. The discharge conveyor is connected to a silo.

[0007] The microbial addition device includes a bacterial liquid tank and a first metering pump. The outlet of the bacterial liquid tank is connected to the inlet of the first metering pump, and the outlet of the first metering pump is connected to the feed inlet of a twin-shaft spiral mixer.

[0008] The moisture regulating device includes a second metering pump, the inlet of which is connected to an external water source, and the outlet of which is connected to the outlet pipe of the first metering pump via a pipeline and then connected to the feed inlet of the twin-shaft screw mixer.

[0009] The control system is electrically connected to the feeder, crusher, screening machine, main conveyor, twin-shaft screw mixer, discharge conveyor, first metering pump and second metering pump respectively.

[0010] Furthermore, it also includes a municipal solid waste treatment sub-production line, which includes a twin-screw pump, a waste slurry silo, a waste treatment device, and a screw conveyor. The inlet of the screw conveyor is connected to the outlet of the waste storage silo, the outlet of the screw conveyor is connected to the inlet of the waste treatment device, the outlet of the waste treatment device is connected to the inlet of the waste slurry silo, the outlet of the waste slurry silo is connected to the inlet of the twin-screw pump, and the outlet of the twin-screw pump is connected to the inlet of the twin-shaft screw mixer. The waste treatment device includes a pulper and a shredder.

[0011] The twin-screw pump, waste treatment device, and screw conveyor are all electrically connected to the control system.

[0012] Furthermore, the main conveyor is an electronic screw scale or an electronic belt scale.

[0013] Furthermore, the screen aperture size of the screening machine is 20-25mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The main production line of this utility model pre-treats coal gangue solid waste through crusher and screening machine, and then mixes it thoroughly with bacterial liquid in spiral mixer before conveying it to silo for reaction. The whole process can be fully automated without human intervention, and can meet the annual processing of millions of tons of coal gangue solid waste. It is suitable for large-scale coal gangue solid waste processing lines.

[0016] 2. The municipal solid waste treatment sub-production line of this utility model can simultaneously solve the problem of municipal solid waste disposal, thus expanding its application scope. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the coal gangue solid waste treatment production line of this utility model.

[0018] In the diagram: 1-Coal gangue silo, 2-Feeder, 3-Crusher, 4-Screwing machine, 5-Main conveyor, 6-Twin-shaft screw mixer, 7-Discharge conveyor; 8-Silo; 9-Twin screw pump; 10-Garbage slurry silo, 11-Garbage treatment device, 12-Screw conveyor, 13-Garbage storage silo, 14-Bacterial liquid tank, 15-First metering pump, 16-Second metering pump. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0020] like Figure 1As shown, a coal gangue solid waste treatment production line includes a main production line, a microbial addition device, a moisture adjustment device, a municipal solid waste treatment sub-production line, and a control system.

[0021] The main production line includes a feeder 2, a crusher 3, a screening machine 4, a main conveyor 5, a twin-shaft spiral mixer 6, and a discharge conveyor 7. The feeder 2's inlet is connected to the coal gangue silo 1, and its outlet is connected to the crusher 3's inlet. The crusher 3's outlet is connected to the screening machine 4's inlet. The screening machine 4 has a 25mm diameter screen. After the coal gangue solid waste enters the screening machine, particles larger than 25mm remain on the screen, while particles smaller than 25mm fall under the screen. The undersize outlet of the screening machine 4 is connected to the main conveyor 5, and the oversize outlet is connected to the crusher 3's inlet. The main conveyor 5 uses an electronic spiral scale, and its other end is connected to the twin-shaft spiral mixer 6's inlet. The twin-shaft spiral mixer 6's outlet is connected to the discharge conveyor 7, and the discharge conveyor 7 is connected to the silo 8.

[0022] The microbial addition device includes a bacterial liquid tank 14 and a first metering pump 15. The outlet of the bacterial liquid tank 14 is connected to the inlet of the first metering pump 15, and the outlet of the first metering pump 15 is connected to the feed inlet of the twin-shaft spiral mixer 6.

[0023] The moisture regulating device includes a second metering pump 16, the inlet of which is connected to an external water source, and the outlet of which is connected to the outlet pipe of the first metering pump 15 via a pipeline and then connected to the feed inlet of the twin-shaft spiral mixer 6.

[0024] The municipal solid waste treatment sub-production line includes a twin-screw pump 9, a waste slurry silo 10, a waste treatment device 11, and a screw conveyor 12. The inlet of the screw conveyor 12 is connected to the outlet of the waste storage silo 13, the outlet of the screw conveyor 12 is connected to the inlet of the waste treatment device 11, the outlet of the waste treatment device 11 is connected to the inlet of the waste slurry silo 10, the outlet of the waste slurry silo 10 is connected to the inlet of the twin-screw pump 9, and the outlet of the twin-screw pump 9 is connected to the inlet of the twin-shaft screw mixer 6. The waste treatment device 11 includes a pulper and a shredder.

[0025] The control system is electrically connected to the feeder 2, crusher 3, screening machine 4, main conveyor 5, twin-shaft screw mixer 6, discharge conveyor 7, twin screw pump 9, waste treatment device 11, screw conveyor 12, first metering pump 15 and second metering pump 16 respectively.

[0026] The main conveyor 5 can also be equipped with an electronic belt scale.

[0027] The diameter of the sieve in the screening machine 4 can be any value between 20-25mm.

[0028] The working process of this utility model:

[0029] The coal gangue solid waste material in the coal gangue silo 1 is fed to the crusher 3 by the feeder 2 for crushing. The crushed material enters the screening machine 4. Particles with a diameter greater than 25mm remain on the screen and return to the crusher 3 for further crushing. Particles with a diameter less than 25mm fall off the screen and are quantitatively conveyed to the twin-shaft screw mixer 6 by the electronic screw scale.

[0030] Meanwhile, the microbial liquid in the bacterial liquid tank 14 is mixed with the external water source through the first metering pump 15 and the second metering pump 16 according to the set ratio to achieve a humidity suitable for the survival and reproduction of microorganisms. For example, if the humidity reaches 20%, the prepared bacterial liquid is quantitatively transported to the twin-shaft spiral mixer 6 and thoroughly mixed with the coal gangue solid waste material. Then, it is transported to the silo 8 through the discharge conveyor 7 for reaction. After the reaction is completed after 24 hours of material storage, it becomes the final product.

[0031] When the amount of domestic waste in the waste storage bin 13 reaches a certain level, it is conveyed to the waste treatment device 11 by the screw conveyor 12. After being crushed and pulped in the waste treatment device 11, it is conveyed to the waste slurry bin 10 and then conveyed to the twin-screw mixer 6 by the twin-screw pump 9. After being fully mixed with coal gangue solid waste and the prepared bacterial solution, it is conveyed to the silo 8 by the discharge conveyor 7 for reaction. After the reaction is completed after 24 hours of material storage, it becomes the final product.

[0032] Coal gangue solid waste that has undergone the above treatment and reaction can be used for saline-alkali land reclamation and harmless landfill, ultimately achieving the goal of large-scale solid waste disposal.

Claims

1. A coal gangue solid waste treatment production line, characterized in that, This includes the main production line, microbial addition equipment, moisture regulation equipment, and control system; The main production line includes a feeder (2), a crusher (3), a screening machine (4), a main conveyor (5), a twin-shaft spiral mixer (6), and a discharge conveyor (7). The feeder (2) has its inlet connected to a coal gangue silo (1) and its outlet connected to the inlet of the crusher (3). The crusher (3) has its outlet connected to the inlet of the screening machine (4). The undersize outlet of the screening machine (4) is connected to the main conveyor (5), and the oversize outlet is connected to the inlet of the crusher (3). The other end of the main conveyor (5) is connected to the inlet of the twin-shaft spiral mixer (6). The outlet of the twin-shaft spiral mixer (6) is connected to the discharge conveyor (7). The discharge conveyor (7) is connected to a silo (8). The microbial addition device includes a bacterial liquid tank (14) and a first metering pump (15). The outlet of the bacterial liquid tank (14) is connected to the inlet of the first metering pump (15), and the outlet of the first metering pump (15) is connected to the feed port of the twin-shaft spiral mixer (6). The moisture regulating device includes a second metering pump (16), the inlet of which is connected to an external water source, and the outlet is connected to the inlet of the twin-shaft spiral mixer (6) after merging with the outlet pipe of the first metering pump (15) through a pipe. The control system is electrically connected to the feeder (2), crusher (3), screening machine (4), main conveyor (5), twin-shaft spiral mixer (6), discharge conveyor (7), first metering pump (15) and second metering pump (16).

2. The coal gangue solid waste treatment production line according to claim 1, characterized in that, It also includes a municipal solid waste treatment sub-production line, which includes a twin screw pump (9), a waste slurry silo (10), a waste treatment device (11), and a screw conveyor (12). The inlet of the screw conveyor (12) is connected to the outlet of the waste storage silo (13), the outlet of the screw conveyor (12) is connected to the inlet of the waste treatment device (11), the outlet of the waste treatment device (11) is connected to the inlet of the waste slurry silo (10), the outlet of the waste slurry silo (10) is connected to the inlet of the twin screw pump (9), and the outlet of the twin screw pump (9) is connected to the inlet of the twin-shaft screw mixer (6). The waste treatment device (11) includes a pulper and a shredder. The twin screw pump (9), the waste treatment device (11), and the screw conveyor (12) are all electrically connected to the control system.

3. The coal gangue solid waste treatment production line according to claim 1, characterized in that, The main conveyor (5) is an electronic screw scale or an electronic belt scale.

4. The coal gangue solid waste treatment production line according to claim 1, characterized in that, The screen size of the screening machine (4) is 20-25mm.

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