CN212355792U - Dual-system raw coal storage, transportation and processing system - Google Patents
Dual-system raw coal storage, transportation and processing system Download PDFInfo
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- CN212355792U CN212355792U CN202020905409.9U CN202020905409U CN212355792U CN 212355792 U CN212355792 U CN 212355792U CN 202020905409 U CN202020905409 U CN 202020905409U CN 212355792 U CN212355792 U CN 212355792U
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- 239000003245 coal Substances 0.000 title claims abstract description 210
- 238000012216 screening Methods 0.000 abstract description 7
- 230000009977 dual effect Effects 0.000 abstract description 6
- 238000000197 pyrolysis Methods 0.000 abstract description 6
- 239000000571 coke Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000000621 Bidens tripartita Nutrition 0.000 description 1
- 240000004082 Bidens tripartita Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000006637 fused teeth Diseases 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
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Abstract
The utility model belongs to the coke storage and transportation field of extensive well low temperature coal pyrolysis especially relates to a dual system raw coal warehousing and transportation system of processing. The system comprises an automobile coal unloading system, a raw coal conveying and processing system, a raw coal storage and transportation system and a raw coal external transportation and loading system, wherein the automobile coal unloading system comprises a main system and an auxiliary system, the main system is connected with the raw coal conveying and processing system through a second belt conveyor, and the auxiliary system is connected with the raw coal storage and transportation system through a fourth belt conveyor; the raw coal storage and transportation system is connected with the raw coal conveying and processing system through a second belt conveyor; the raw coal conveying and processing system comprises a first vibrating screen, a double-geared roller crusher and a second vibrating screen, and pulverized coal after crushing and screening is conveyed to different furnace groups and a raw coal external conveying and loading system through a fifth belt type, a sixth belt type, a seventh belt type and an eighth belt type. The utility model discloses a set up main, vice dual system, realize coming the direct processing of coal and use and store in the coal yard, take and combine together, furthest ensures the stable continuous feed of follow-up pyrolysis workshop section.
Description
Technical Field
The utility model belongs to the coke storage and transportation field of extensive well low temperature coal pyrolysis especially relates to a dual system raw coal warehousing and transportation system of processing.
Background
The low-rank coal resources such as brown coal, long flame coal, weakly caking coal and non-caking coal in China are rich, accounting for 55% of the national coal yield and accounting for more than 80% of the Shaanxi, Nemeng and Xinjiang coal yield. The low-rank coal can realize grading and quality-grading conversion thereof in a medium-low temperature pyrolysis mode, and three energy products of coal gas, coal tar and semicoke are obtained. At present, the total energy of semicoke in China is about 1 hundred million tons per year, and an internal heating type vertical furnace is mainly adopted in the pyrolysis process.
The raw coal storage and transportation device is a feeding supply system of an internal heating type vertical furnace group and is vital to maintaining stable production of the furnace group. At present, a single-coal-feeding system is adopted for a vertical furnace group, namely raw coal is transported into a vehicle from the outside of a site, directly unloaded to a single or a plurality of coal receiving pits, then conveyed to a coal screening chamber by a belt conveyor below the coal receiving pits for screening, and qualified coal as fired is screened and conveyed to the vertical furnace group. Generally, the process is simple in process, less in equipment, compact in arrangement and convenient to operate, and the coal feeding process is basically adopted by small and medium-sized semi-coke plants at home and abroad. However, with the increase of the number of the existing furnace groups, a single furnace group is upgraded into a double furnace group or even four furnace groups, and with the increase of the productivity of a single furnace, the scale of the single furnace group is increased, the raw coal quantity required by the whole furnace group is increased from millions of tons to nearly tens of millions of tons every year, the traditional simple coal feeding device cannot ensure uniform and stable feeding for the multiple furnace groups, and meanwhile, the problem of large quantity stacking and taking of the raw coal in the site cannot be solved through the original process.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a dual system raw coal warehousing and transportation system of processing to solve above-mentioned existing raw coal warehousing and transportation system can't guarantee even stable for the many boiler groups feed and raw coal in the on-the-spot bulk storage, take inconvenient defect.
The utility model adopts the technical scheme as follows:
a dual-system raw coal storage and transportation processing system comprises an automobile coal unloading system, a raw coal processing system and a raw coal storage and transportation system, wherein the automobile coal unloading system consists of a main system and an auxiliary system, the main system comprises a coal unloading groove for containing raw coal, an impeller coal feeder is arranged at an outlet of the coal unloading groove, and the impeller coal feeder is connected with the raw coal processing system through a first belt conveyor and a second belt conveyor in sequence; the auxiliary system comprises a coal unloading pit, a first electro-hydraulic gate valve is arranged at an outlet of the coal unloading pit and connected with a first vibrating feeder, and the first vibrating feeder is connected with the raw coal storage and transportation system sequentially through a third belt conveyor and a fourth belt conveyor.
Further, the raw coal storage and transportation system comprises a bucket-wheel stacker-reclaimer, a strip-shaped storage yard is arranged below the bucket-wheel stacker-reclaimer, and the strip-shaped storage yard is connected with the raw coal conveying and processing system through a second belt conveyor.
Further, the raw coal conveying and processing system comprises a first vibrating screen, a crushing buffer bin, a second vibrating screen and a middle buffer bin, wherein the crushing buffer bin feeds materials to the second vibrating screen through a third electro-hydraulic gate valve and a third vibrating feeder, and the second vibrating screen is connected with the middle buffer bin through a fifth belt conveyor and a sixth belt conveyor; the middle buffer bin is provided with double outlets, a fourth electro-hydraulic gate valve is arranged at each outlet, a fourth vibrating feeder is connected to each outlet of the fourth electro-hydraulic gate valve, one of the fourth vibrating feeders is connected with a seventh belt conveyor, and the other fourth vibrating feeder is connected with an eighth belt conveyor.
Further, the raw coal conveying and processing system further comprises a front screen buffer bin, and the front screen buffer bin feeds the raw coal to the first vibrating screen through a second electro-hydraulic gate valve and a second vibrating feeder.
Furthermore, a double-geared roller crusher is further arranged between the first vibrating screen and the crushing buffer bin, and unqualified raw coal screened by the first vibrating screen enters the crushing buffer bin after being crushed by the double-geared roller crusher.
Further, the dual-system raw coal storage, transportation and processing system further comprises a raw coal external transportation and loading system, the raw coal external transportation and loading system comprises an electro-hydraulic three-way material distributor and a pulverized coal silo, the electro-hydraulic three-way material distributor is connected with the pulverized coal silo through a tenth belt conveyor, and an electro-hydraulic jaw type gate is arranged at an outlet of the pulverized coal silo.
Furthermore, the coal unloading groove is a groove-shaped slit type coal unloading bin, and the coal unloading pit is a pyramid-shaped coal unloading bin.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a set up main, vice dual system, the car comes the coal partly directly to unload into main system, and the subsystem is unloaded to another part, and the raw coal of subsystem is carried to raw coal warehousing and transportation system through third belt conveyor, fourth belt conveyor, realizes coming the direct processing of coal and uses and come the coal yard in the storage, take and combine together, the stable continuous feed of follow-up pyrolysis workshop section of furthest guarantee.
(2) The utility model discloses a processing system is carried to main, vice dual system sharing raw coal, the raw coal of subsystem storage is through taking the back, merges the raw coal processing system of main system, has simplified technology, has reduced the investment, has ensured the stability of raw coal processing system coal simultaneously.
(3) The bucket-wheel stacker-reclaimer adopted by the raw coal storage and transportation system can also realize the partition classification stacking, and provides possibility for different furnace groups to receive different coal types.
Drawings
Fig. 1 is a schematic structural diagram of a dual-system raw coal storage, transportation and processing device provided by the present invention;
FIG. 2 is a flow chart of a dual-system raw coal storage and transportation process provided by the present invention;
wherein, 1-a coal unloading groove, 2-a coal impeller feeder, 3-a first belt conveyor, 4-a coal unloading pit, 5-a first electro-hydraulic gate valve, 6-a first vibrating feeder, 7-a third belt conveyor, 8-a fourth belt conveyor, 9-a bucket wheel stacker reclaimer, 10-a strip yard, 11-a second belt conveyor, 12-a pre-screen buffer bin, 13-a second electro-hydraulic gate valve, 14-a second vibrating feeder, 15-a first vibrating screen, 16-a double-toothed roller crusher, 17-a crushing buffer bin, 18-a third electro-hydraulic gate valve, 19-a third vibrating feeder, 20-a second vibrating screen, 21-a fifth belt conveyor, 22-a sixth belt conveyor, 23-an intermediate buffer bin, 24-a fourth electro-hydraulic gate valve, 25-a fourth vibrating feeder, 26-a seventh belt conveyor, 27-an eighth belt conveyor, 28-an electro-hydraulic three-way distributor, 29-a ninth belt conveyor, 30-a tenth belt conveyor, 31-a pulverized coal silo, 32-an electro-hydraulic jaw gate, A-1 furnace group, B-2 furnace group, C-a subsequent process and D-an external transport truck.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. The terms first and second are not intended to be sequential, but rather to distinguish one element from another.
Example 1
Referring to fig. 1 and 2, a dual-system raw coal storage and transportation system comprises an automobile coal unloading system, a raw coal processing system and a raw coal storage and transportation system, wherein the automobile coal unloading system comprises a main system and a secondary system, the main system comprises a coal unloading groove 1 for containing raw coal, an impeller coal feeder 2 is arranged at an outlet of the coal unloading groove 1, and the impeller coal feeder 2 is connected with the raw coal processing system through a first belt conveyor 3 and a second belt conveyor 11 in sequence; the auxiliary system comprises a coal unloading pit 4, a first electro-hydraulic gate valve 5 is arranged at an outlet of the coal unloading pit 4, the first electro-hydraulic gate valve 5 is connected with a first vibrating feeder 6, and the first vibrating feeder 6 is connected with the raw coal storage and transportation system through a third belt conveyor 7 and a fourth belt conveyor 8 in sequence. As a preferred scheme, the coal unloading groove 1 is a groove-shaped slit type coal unloading bin, and the coal unloading pit 4 is a pyramid-shaped coal unloading bin.
The raw coal storage and transportation system comprises a bucket-wheel stacker-reclaimer 9, a strip-shaped storage yard 10 is arranged below the bucket-wheel stacker-reclaimer 9, and the strip-shaped storage yard 10 is connected with the raw coal conveying and processing system through a second belt conveyor 11. The raw coal storage and transportation system adopts two bucket-wheel stacker-reclaimers 9 to reclaim materials, which are mutually spare, and coal is reclaimed when coal is piled in a storage yard to complete the stacking and reclaiming work in a large-area bar-shaped coal yard, and the bar-shaped coal yard piles the raw coal of different coal types in a subarea manner to convey different pulverized coal for different furnace groups.
The raw coal conveying and processing system comprises a first vibrating screen 15, a crushing buffer bin 17, a second vibrating screen 20 and a middle buffer bin 23, wherein raw coal conveyed from a raw coal storage and transportation system and an automobile coal unloading system is screened by the first vibrating screen 15, qualified raw coal directly enters the crushing buffer bin 17 for buffering, and is fed to the second vibrating screen 20 through a third electric hydraulic gate valve 18 and a third vibrating feeder 19; qualified coal as fired after being sieved by the second vibrating screen 20 is conveyed to an intermediate buffer bin 23 through a fifth belt conveyor 21 and a sixth belt conveyor 22; the middle buffering bin 23 is provided with double outlets, a fourth electro-hydraulic gate valve 24 is arranged at each outlet, a fourth vibrating feeder 25 is connected to each outlet of the fourth electro-hydraulic gate valve 24, one of the fourth vibrating feeders 25 conveys the finished coal to the position A through a seventh belt conveyor 26, and the other fourth vibrating feeder 25 conveys the finished coal to the position B through an eighth belt conveyor 27.
In addition, the raw coal conveying and processing system adopts two-way arrangement, one-way operation and one-way standby.
Example 2
On the basis of embodiment 1, the raw coal conveying and processing system further comprises a pre-screening buffer bin 12, a second electro-hydraulic gate valve 13 is arranged at an outlet of the pre-screening buffer bin 12, the second electro-hydraulic gate valve 13 is connected with a second vibrating feeder 14 through a chute, and the vibrating feeder 14 feeds to a first vibrating screen 15.
Example 3
On the basis of embodiment 1, a double-geared roller crusher 16 is further arranged between the first vibrating screen 15 and the crushing buffer bin 17, and the unqualified raw coal screened by the first vibrating screen 15 enters the crushing buffer bin 17 after being crushed by the double-geared roller crusher 16. The double-tooth crushing roller 16 has two sets of independent driving devices, and the two crushing rollers can work independently. During crushing, the working system can be changed according to the amount of raw coal, namely, a single machine is started when the amount of raw coal is small, and a double machine is started when the amount of raw coal is large, so that the crushing of the large-scale raw coal can be realized, and the crushing of the small-scale raw coal can be satisfied. In addition, when one crushing roller breaks down, the crushing of unqualified raw coal is not influenced.
Example 4
On the basis of the embodiment 1, the dual-system raw coal storage and transportation processing device further comprises a raw coal external transportation and loading system used for receiving unqualified fired coal (pulverized coal) screened by the second vibrating screen 20, the raw coal external transportation and loading system comprises an electro-hydraulic three-way distributor 28, an outlet of the electro-hydraulic three-way distributor 28 is connected with a ninth belt conveyor 29 and a tenth belt conveyor 30, an outlet of the tenth belt conveyor 30 is connected with a pulverized coal silo 31, and an outlet of the pulverized coal silo 31 is provided with an electro-hydraulic jaw gate 32. Preferably, a plurality of pulverized coal silos 31 are arranged in parallel, 4 discharging ports are arranged below each pulverized coal silo 31, electro-hydraulic jaw type gates 32 are used for discharging and loading, 2 pulverized coal silos are arranged in one group, one underground weigher is arranged below each group of silos, and one transport vehicle is correspondingly charged.
Example 5
A double-system raw coal storage and transportation processing technology comprises the following steps:
s1, unloading coal from an automobile into a coal unloading groove in a self-unloading or mechanical coal unloading mode, and dropping the raw coal onto a first belt conveyor and then onto a second belt conveyor through an impeller coal feeder below the coal unloading groove;
s2, unloading coal from an automobile into a coal unloading pit, and dropping the raw coal onto a third belt conveyor through an electro-hydraulic gate valve and a vibrating feeder below the coal unloading pit;
s3, transferring the raw coal on the third belt conveyor to a strip-shaped storage yard through the fourth belt conveyor, taking the raw coal through a bucket-wheel stacker-reclaimer, and uniformly and continuously taking the raw coal in the strip-shaped storage yard to the second belt conveyor to realize the standby function of storage and taking of a secondary system;
s4, feeding the raw coal of the second belt conveyor into a screen front buffer bin, and feeding the raw coal to a first vibrating screen through a second electro-hydraulic gate valve and a second vibrating feeder after buffering;
s5, separating two kinds of mixed coal through primary screening, wherein unqualified raw coal larger than 80mm enters a double-geared roller crusher, the crushed raw coal enters a crushing buffer bin, and qualified raw coal smaller than or equal to 80mm is directly mixed into the crushing buffer bin;
s6, feeding the raw coal in the crushing buffer bin to a second vibrating screen through a third electro-hydraulic gate valve and a third vibrating feeder, after secondary screening, feeding the qualified coal fed into the furnace by a 10-80mm sieve to a middle buffer bin through a fifth belt conveyor, and feeding the unqualified coal powder below the 10mm sieve to a subsequent device or a raw coal external transportation and loading system;
s7, feeding the pulverized coal in the middle buffer bin to a seventh belt conveyor and an eighth belt conveyor through a fourth electro-hydraulic gate valve and a fourth vibrating feeder, and sending the pulverized coal to different furnace groups in two paths.
Example 6
On the basis of embodiment 5, the specific steps of sending the small-particle-size pulverized coal in step S6 to the raw coal external transportation and loading system are as follows:
s61, passing the unqualified pulverized coal screened by the second vibrating screen through a tenth belt conveyor to send a hydraulic three-way material distributor;
s62, conveying one part of the pulverized coal separated by the electro-hydraulic three-way distributor to a subsequent working section C through a ninth belt conveyor, and conveying the other part of the pulverized coal to a pulverized coal silo through a tenth belt conveyor;
s63, discharging the pulverized coal filtered by the pulverized coal silo by using an electro-hydraulic jaw gate, and carrying out external transportation on the vehicle D.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The double-system raw coal storage and transportation processing system is characterized by comprising an automobile coal unloading system, a raw coal conveying and processing system and a raw coal storage and transportation system, wherein the automobile coal unloading system consists of a main system and an auxiliary system, the main system comprises a coal unloading groove (1) for containing raw coal, an impeller coal feeder (2) is arranged at an outlet of the coal unloading groove (1), and the impeller coal feeder (2) is connected with the raw coal processing system through a first belt conveyor (3) and a second belt conveyor (11) in sequence; the auxiliary system comprises a coal unloading pit (4), a first electro-hydraulic gate valve (5) is arranged at an outlet of the coal unloading pit (4), the first electro-hydraulic gate valve (5) is connected with a first vibrating feeder (6), and the first vibrating feeder (6) is connected with the raw coal storage and transportation system sequentially through a third belt conveyor (7) and a fourth belt conveyor (8).
2. The dual-system raw coal storage and transportation system of claim 1, wherein the raw coal storage and transportation system comprises a bucket-wheel stacker-reclaimer (9), a strip-shaped storage yard (10) is arranged below the bucket-wheel stacker-reclaimer (9), and the strip-shaped storage yard (10) is connected with the raw coal transportation and processing system through a second belt conveyor (11).
3. The dual-system raw coal storage and transportation processing system of claim 1, wherein the raw coal conveying and processing system comprises a first vibrating screen (15), a crushing buffer bin (17), a second vibrating screen (20) and an intermediate buffer bin (23), the crushing buffer bin (17) is fed to the second vibrating screen (20) through a third electro-hydraulic gate valve (18) and a third vibrating feeder (19), and the second vibrating screen (20) is connected with the intermediate buffer bin (23) through a fifth belt conveyor (21) and a sixth belt conveyor (22); the middle buffer bin (23) is provided with double outlets, each outlet is provided with a fourth electro-hydraulic gate valve (24), each outlet of the fourth electro-hydraulic gate valve (24) is connected with a fourth vibrating feeder (25), one of the fourth vibrating feeders (25) is connected with a seventh belt conveyor (26), and the other fourth vibrating feeder (25) is connected with an eighth belt conveyor (27).
4. The dual-system raw coal storage and transportation processing system of claim 3, further comprising a pre-screen buffer bin (12), wherein the pre-screen buffer bin (12) is fed to the first vibrating screen (15) through a second electro-hydraulic gate valve (13) and a second vibrating feeder (14).
5. The dual-system raw coal storage, transportation and processing system as claimed in claim 3, wherein a double-toothed roller crusher (16) is further arranged between the first vibrating screen (15) and the crushing buffer bin (17), and unqualified raw coal screened by the first vibrating screen (15) enters the crushing buffer bin (17) after being crushed by the double-toothed roller crusher (16).
6. The dual-system raw coal storage, transportation and processing system of claim 1, further comprising a raw coal external transportation and loading system, wherein the raw coal external transportation and loading system comprises an electro-hydraulic three-way distributor (28) and a pulverized coal silo (31), the electro-hydraulic three-way distributor (28) is connected with the pulverized coal silo (31) through a tenth belt conveyor (30), and an electro-hydraulic jaw gate (32) is arranged at an outlet of the pulverized coal silo (31).
7. The dual-system raw coal storage, transportation and processing system according to any one of claims 1 to 6, wherein the coal discharge chute (1) is a chute-type coal discharge bin, and the coal discharge pit (4) is a pyramid-shaped coal discharge bin.
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| CN202020905409.9U CN212355792U (en) | 2020-05-26 | 2020-05-26 | Dual-system raw coal storage, transportation and processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573323A (en) * | 2020-05-26 | 2020-08-25 | 陕西冶金设计研究院有限公司 | A dual-system raw coal storage, transportation and processing system and its technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573323A (en) * | 2020-05-26 | 2020-08-25 | 陕西冶金设计研究院有限公司 | A dual-system raw coal storage, transportation and processing system and its technology |
| CN111573323B (en) * | 2020-05-26 | 2025-02-14 | 陕西冶金设计研究院有限公司 | A dual-system raw coal storage, transportation and processing system and process thereof |
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