CN212355794U - Low order coal is carried processing and is stored up coal system and unite and use device - Google Patents
Low order coal is carried processing and is stored up coal system and unite and use device Download PDFInfo
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- CN212355794U CN212355794U CN202021340979.4U CN202021340979U CN212355794U CN 212355794 U CN212355794 U CN 212355794U CN 202021340979 U CN202021340979 U CN 202021340979U CN 212355794 U CN212355794 U CN 212355794U
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Abstract
The utility model discloses a processing and storage coal system allies oneself with and uses device is carried to low order coal belongs to the coal tar warehousing and transportation field of low temperature pyrolysis in the medium and small scale low order coal, carry processing system and storage coal system including the raw coal, the raw coal is carried processing system and is included unloading pit, just screening plant, first belt conveyor, set up coarse crushing device, tee bend tripper, second belt conveyor, fifth belt conveyor, sixth belt conveyor and the fine and broken system of fine and broken sieve in the screening plant below just, second belt conveyor below is provided with the fine and broken system of fine and broken sieve, fifth belt conveyor below is provided with stores up the coal system, it is provided with sixth belt conveyor to store up coal system below. The utility model combines the raw coal conveying and processing system and the coal storage system, thereby ensuring the stable and continuous feeding of the subsequent vertical carbonization furnace to the maximum extent; the coal storage system shares the raw coal conveying and processing system, so that the process is simplified, the investment is reduced, and the stability of the coal for the vertical carbonization furnace is ensured.
Description
Technical Field
The utility model belongs to the coke storage and transportation field of low temperature pyrolysis in the medium and small-scale low order coal especially relates to a low order coal is carried processing and is stored up coal system and unite and use device.
Background
The low-rank coal is coal in a low metamorphic stage, and mainly comprises lignite, long flame coal, weakly caking coal, non-caking coal and the like. The low-rank coal resources in China are rich, and account for 55 percent of the national coal yield and more than 80 percent 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 semi-coke (semicoke) are obtained. At present, the total energy of semi coke in China is about 1 hundred million tons per year, an internal heating type vertical carbonization furnace is generally adopted in semi coke production, and block coal with a fixed specification is selected as a raw material of the vertical carbonization furnace according to the requirement of a working environment.
The raw coal conveying, processing and coal storage are feeding and supplying systems of the vertical carbonization furnace, and are vital to maintaining stable production of the furnace set. The common feeding system process for small and medium size semi-coke plants at home and abroad is as follows: the raw coal is transported into the yard from the outside of the yard by the automobile, and is directly discharged to a single or a plurality of coal receiving pits, and then is conveyed to a coal screening chamber for screening by a belt conveyor under the coal receiving pits, and qualified coal as fired is screened out and conveyed to the vertical furnace group. Generally, the process is simple, the equipment is less, the arrangement is compact, and the operation is convenient. However, the process requires that the particle size of the coal cannot exceed the maximum lump size requirement of the coal as fired, and meanwhile, the coal yard is mostly stockpiled by adopting a mode of car dumping and forklift matching, so that the height of stockpiled coal is limited, the occupied area utilization rate of the coal yard is low, the raw coal is seriously damaged, a large amount of pulverized coal is easily generated, the burden of a raw coal processing system is increased, the qualified rate of the raw coal is reduced, and the raw coal cost of a semi coke plant is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to the problem that above-mentioned exists, the utility model provides a processing and coal storage system allies oneself with uses device is carried to low order coal provides stable raw coal feeding mechanism for the semi coke production of medium and small-scale, has given the storage of medium and small-scale raw coal, has taken and the processing that the super bold comes the coal provides economic reasonable method.
The utility model adopts the technical scheme as follows:
a low-rank coal conveying, processing and coal storing system combined device, which comprises a raw coal conveying and processing system and a coal storing system, the raw coal conveying and processing system comprises a coal unloading pit, a primary screening device, a first belt conveyor, a coarse crushing device, a three-way material distributor, a second belt conveyor, a fifth belt conveyor, a sixth belt conveyor and a fine screening and fine crushing system, a first belt conveyor is arranged below the feed opening of the primary screening device and the feed opening of the coarse crushing device, a three-way distributor is arranged at the tail end of the first belt conveyor, a second belt conveyor and a fifth belt conveyor are respectively arranged below the three-way distributor, the fine screening and fine crushing system is arranged below the second belt conveyor, the coal storage system is arranged below the fifth belt conveyor, and the sixth belt conveyor is arranged below the coal storage system.
Preferably, the fine screen fine crushing system sequentially comprises a primary vibrating screen, a double-geared roller crusher, a secondary vibrating screen, a third belt conveyor and a fourth belt conveyor, and the tail end of the fourth belt conveyor is provided with a pulverized coal bunker.
Preferably, the tail end of the third belt conveyor is provided with a vertical carbonization furnace A.
Preferably, an electro-hydraulic jaw type gate is arranged at an outlet of the pulverized coal bin.
Preferably, the coal storage system comprises a raw coal yard arranged below the fifth belt conveyor, a coal receiving pit, a second electro-hydraulic gate valve arranged at an outlet of the coal receiving pit and a second vibrating feeder arranged below the second electro-hydraulic gate valve, and the discharged material of the second vibrating feeder flows into the sixth belt conveyor.
Preferably, an outlet of the coal unloading pit is provided with a first electro-hydraulic gate valve, a first vibrating feeder is arranged below the first electro-hydraulic gate valve, and the discharged material of the first vibrating feeder flows into the first belt conveyor.
Preferably, the primary screening device is a fixed slide sieve, the installation angle of the fixed slide sieve is 40-55 degrees, the width of the fixed slide sieve is 2.5-3.5 times of the length, a grid screen is arranged in the fixed slide sieve, and the grid screen is trapezoidal.
Preferably, the coarse crushing device is a jaw crusher.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model adopts the fixed slide sieve, the width of the sieve surface is larger, the unloading requirement of the dump truck can be met, the effective length of the sieve surface is larger and is about 3 times of the width, the sieve surface is installed by a large angle (more than 40 degrees), the grate screen is selected by a trapezoid section with a wide upper part and a narrow lower part, the whole structure is simple, the power is not consumed, the sieve slide sieve is used as a primary sieve, the sieving efficiency is ideal, and simultaneously the construction cost of a high platform can be saved by combining favorable terrain;
(2) the utility model discloses a receive coal pit and high platform to unload coal, wherein the high platform is unloaded the coal and is corresponded fixed slide sieve, receives the super large lump coal that the supplied materials is more than or equal to 300mm, slide sieve side reel increase the reinforcement, prevent the side flash, slide the breaker of sieve tail end and receive the hopper increase the reinforcement to keep out the impact of tail end material flow; the receiving pit receives coal with incoming material less than 300mm, and different coal requirements can be met by adopting coal unloading of the receiving pit and coal unloading of a high platform; the two coal unloading forms are separately arranged, so that the processing capacity of the device can be saved, the model selection degradation of equipment can be realized, the capital investment of the equipment can be saved, and the system is more favorable for stable operation, equipment inspection and maintenance and civil engineering matching;
(3) the jaw crusher can process 1.2m of oversized lump coal to the maximum extent, and has wider coal application range; the double-geared roller crusher can adjust the space between the gear rollers, reduce the over-crushing rate to the maximum extent and ensure the block coal ratio within 80 mm;
(4) the utility model combines the direct processing and use of the coal with the storage and taking of the coal yard (namely, the combination of the raw coal conveying and processing system and the coal storage system), thereby ensuring the stable and continuous feeding of the subsequent vertical carbonization furnace to the maximum extent; the coal storage system shares the coarse crushing device, the primary screening device and the fine screening and fine crushing system for conveying and processing raw coal, so that the process is simplified, the investment is reduced, and the coal stability of the vertical carbonization furnace is ensured.
Drawings
FIG. 1 is a schematic view of a combined device for conveying, processing and storing low-rank coal according to the present invention;
labeled as: 1-fixed slide sieve, 2-jaw crusher, 3-first belt conveyor, 4-coal unloading pit, 5-first electric hydraulic gate valve, 6-first vibrating feeder, 7-three-way distributor, 8-second belt conveyor, 9-primary vibrating sieve, 10-double-toothed roller crusher, 11-secondary vibrating sieve, 12-third belt conveyor, 13-fourth belt conveyor, 14-pulverized coal bunker, 15-electric hydraulic jaw gate, 16-fifth belt conveyor, 17-raw coal yard, 18-coal receiving pit, 19-second electric hydraulic gate valve, 20-second vibrating feeder, 21-sixth belt conveyor, 22-coal storage system, 23-high platform, 24-vertical carbonization furnace A, 25-subsequent section B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention.
Example 1
In order to ensure the stable and continuous feeding of the subsequent vertical carbonization furnace to the maximum extent, the process is simplified, the investment is reduced, and the coal stability of the vertical carbonization furnace is ensured. The utility model provides a low order coal conveying processing and coal storage system combined device, which comprises a raw coal conveying processing system and a coal storage system 22, wherein the raw coal conveying processing system comprises a coal unloading pit 4, a primary screening device, a first belt conveyor 3, a coarse crushing device, a three-way distributor 7, a second belt conveyor 8, a fifth belt conveyor 16, a sixth belt conveyor 21 and a fine screening and fine crushing system which are arranged below the primary screening device, the first belt conveyor 3 is arranged below a feed opening of the primary screening device and a feed opening of the coarse crushing device, the tail end of the first belt conveyor 3 is provided with the three-way distributor 7, the second belt conveyor 8 and the fifth belt conveyor 16 are respectively arranged below the three-way distributor 7, the fine screening and fine crushing system is arranged below the second belt conveyor 8, the coal storage system 22 is arranged below the fifth belt conveyor 16, a sixth belt conveyor 21 is arranged below the coal storage system 22.
Example 2
On the basis of the embodiment 1, further, the fine screen fine crushing system sequentially comprises a primary vibrating screen 9, a double-geared roller crusher 10, a secondary vibrating screen 11, a third belt conveyor 12 and a fourth belt conveyor 13, and a pulverized coal bin 14 is arranged at the tail end of the fourth belt conveyor 13.
Example 3
In addition to embodiment 2, the tail end of the third belt conveyor 12 is provided with a vertical carbonization furnace a 24. Further, an electro-hydraulic jaw type gate 15 is arranged at the outlet of the pulverized coal bin 14.
Example 4
On the basis of the embodiment 1, further, the coal storage system 22 comprises a raw coal yard 17 arranged below the fifth belt conveyor 16, a coal receiving pit 18, a second electro-hydraulic gate valve 19 arranged at an outlet of the coal receiving pit 18, and a second vibrating feeder 20 arranged below the second electro-hydraulic gate valve 19, and the discharge of the second vibrating feeder 20 flows into a sixth belt conveyor 21.
Example 5
On the basis of the embodiment 1, further, a first electro-hydraulic gate valve 5 is arranged at an outlet of the coal unloading pit 4, a first vibrating feeder 6 is arranged below the first electro-hydraulic gate valve 5, and the discharged material of the first vibrating feeder 6 flows into the first belt conveyor 3.
Example 6
On the basis of the embodiment 1, the primary screening device is a fixed slide sieve 1, the installation angle of the fixed slide sieve 1 is 40-55 degrees, the width of the fixed slide sieve 1 is 2.5-3.5 times of the length, a grid screen is arranged in the fixed slide sieve 1, and the grid screen is trapezoidal. On the basis of example 1, further, the coarse crushing device is a jaw crusher 2.
The utility model combines the direct processing and use of the coal with the storage and taking of the coal yard (namely, the combination of the raw coal conveying and processing system and the coal storage system 22), thereby ensuring the stable and continuous feeding of the subsequent vertical carbonization furnace to the maximum extent; the coal storage system 22 shares the coarse crushing device, the primary screening device and the fine screening and fine crushing system for conveying and processing raw coal, so that the process is simplified, the investment is reduced, and the stability of the coal for the vertical carbonization furnace is ensured. Use the utility model discloses a include during the device that concrete step is as follows:
the method comprises the following steps: when the particle size of the coal coming from the automobile is larger than or equal to 300mm, the automobile can be driven to the high platform 23 and directly unloaded onto the fixed slide sieve 1;
step two: the fixed slide sieve 1 sieves out raw coal with two particle size ranges of more than or equal to 300mm and less than 300mm, the tail end of the fixed slide sieve 1 is connected with a receiving hopper of a jaw crusher 2, the raw coal with the particle size of more than or equal to 300mm on the sieve directly enters the jaw crusher 2 for coarse crushing, and ultra-large coming coal is crushed to be less than 300 mm; the material sieved by the fixed slide sieve 1 and the coarsely broken raw coal fall to a first belt conveyor 3;
step three: when the granularity of the coal coming from the automobile is less than 300mm, the coal can be directly unloaded into the coal unloading pit 4, and the raw coal falls onto the first belt conveyor 3 through the first electro-hydraulic gate valve 5 and the first vibrating feeder 6 below the coal unloading pit 4;
step four: after being output by the first belt conveyor 3, raw coal passes through an electro-hydraulic three-way material distributor 7, one path of raw coal is conveyed to a raw coal fine screening and fine crushing system through a second belt conveyor 8, and the other path of raw coal is conveyed to a raw coal storage yard 17 through a fifth belt conveyor 16;
step five: the fine screening and fine crushing system of the raw coal comprises primary screening, fine crushing and secondary screening; two kinds of mixed coal of 80-300mm and less than 80mm are separated by primary screening, wherein, the large coal of 80-300mm enters a double-tooth roller crusher 10, is combined with the coal of less than 80mm below the screen after being crushed, and enters secondary screening together; after secondary screening, the oversize material of 10-80mm is qualified coal as fired, and is sent to a vertical carbonization furnace A24 through a third belt conveyor 12; the sieved material of <10mm is sent to a pulverized coal bunker 14 by a fourth belt conveyor 13;
step six: an electro-hydraulic jaw type gate 15 is arranged at the lower outlet of the 14-bin pulverized coal bin and is connected with a pulverized coal truck for outward transportation or sent to a subsequent working section B25;
step seven: the raw coal is unloaded to a raw coal storage yard 17 by adopting an overhead belt conveyor (a fifth belt conveyor 16) with a dump truck, and the raw coal is unloaded by walking back and forth through a dump truck;
step eight: and feeding the storage yard coal storage system 22 to the second belt conveyor 8 from a second electro-hydraulic gate valve 19 and a second vibrating feeder 20 below the coal receiving pit 18, and conveying the coal to the raw coal crushing and screening chamber.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (8)
1. A low-rank coal conveying, processing and coal storage system combined device is characterized by comprising a raw coal conveying and processing system and a coal storage system (22), wherein the raw coal conveying and processing system comprises a coal unloading pit (4), a primary screening device, a first belt conveyor (3), a coarse crushing device, a three-way material distributor (7), a second belt conveyor (8), a fifth belt conveyor (16), a sixth belt conveyor (21) and a fine screening and fine crushing system, the coarse crushing device, the three-way material distributor (7), the second belt conveyor (8) and the fifth belt conveyor (16) are arranged below a feed opening of the primary screening device and a feed opening of the coarse crushing device, the first belt conveyor (3) is arranged below the feed opening of the primary screening device, the three-way material distributor (7) is arranged at the tail end of the first belt conveyor (3), the second belt conveyor (8) and the fifth belt conveyor (16) are respectively arranged below the three-way material distributor (7), the fine screening system is arranged below the second belt conveyor (8), a coal storage system (22) is arranged below the fifth belt conveyor (16), and a sixth belt conveyor (21) is arranged below the coal storage system (22).
2. The combined device for conveying, processing and storing the low-rank coal according to claim 1, wherein the fine screen fine crushing system comprises a primary vibrating screen (9), a double-geared roller crusher (10), a secondary vibrating screen (11), a third belt conveyor (12) and a fourth belt conveyor (13) in sequence, and a pulverized coal bin (14) is arranged at the tail end of the fourth belt conveyor (13).
3. The combined low-rank coal conveying, processing and coal storing system device as claimed in claim 2, wherein the tail end of the third belt conveyor (12) is provided with a vertical carbonization furnace A (24).
4. The combined device for conveying, processing and storing the low-rank coal as claimed in claim 2, wherein an electro-hydraulic jaw gate (15) is arranged at an outlet of the pulverized coal bunker (14).
5. The combined device for conveying, processing and storing the low-rank coal according to claim 1, wherein the coal storing system (22) comprises a raw coal storage yard (17) arranged below the fifth belt conveyor (16), a coal receiving pit (18), a second electro-hydraulic gate valve (19) arranged at an outlet of the coal receiving pit (18), and a second vibrating feeder (20) arranged below the second electro-hydraulic gate valve (19), and the discharged material of the second vibrating feeder (20) flows into the sixth belt conveyor (21).
6. The combined device for conveying, processing and storing the low-rank coal according to claim 1, wherein a first electro-hydraulic gate valve (5) is arranged at an outlet of the coal unloading pit (4), a first vibrating feeder (6) is arranged below the first electro-hydraulic gate valve (5), and the discharge of the first vibrating feeder (6) flows into the first belt conveyor (3).
7. The combined device for conveying, processing and storing the low-rank coal according to claim 1, wherein the primary screening device is a fixed slide sieve (1), the installation angle of the fixed slide sieve (1) is 40-55 degrees, the width of the fixed slide sieve (1) is 2.5-3.5 times of the length of the fixed slide sieve, a grid screen is arranged in the fixed slide sieve (1), and the grid screen is trapezoidal.
8. The combined low-rank coal conveying, processing and coal storing system device as claimed in claim 1, wherein the coarse crushing device is a jaw crusher (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021340979.4U CN212355794U (en) | 2020-07-09 | 2020-07-09 | Low order coal is carried processing and is stored up coal system and unite and use device |
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| CN202021340979.4U CN212355794U (en) | 2020-07-09 | 2020-07-09 | Low order coal is carried processing and is stored up coal system and unite and use device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703922A (en) * | 2020-07-09 | 2020-09-25 | 陕西冶金设计研究院有限公司 | Method and device for combined use of low-rank coal conveying, processing and coal storage system |
| CN111703922B (en) * | 2020-07-09 | 2024-05-31 | 陕西冶金设计研究院有限公司 | Method and device for combining low-rank coal conveying processing and coal storage system |
-
2020
- 2020-07-09 CN CN202021340979.4U patent/CN212355794U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703922A (en) * | 2020-07-09 | 2020-09-25 | 陕西冶金设计研究院有限公司 | Method and device for combined use of low-rank coal conveying, processing and coal storage system |
| CN111703922B (en) * | 2020-07-09 | 2024-05-31 | 陕西冶金设计研究院有限公司 | Method and device for combining low-rank coal conveying processing and coal storage system |
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