Carbonization furnace coal bunker dust collecting device
By setting up a dust collector and a bag dust collector on the silo of the carbonization furnace, using the induced fan and negative pressure suction technology, the problem of dust overflow is solved, effective collection and purification of dust is achieved, and the safety of the working environment is improved. .
Patent Information
- Application Number
- CN202420954437.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-06
AI Technical Summary
During the use of the carbonization furnace, dust overflow caused by the failure of the electro-hydraulic roller valve causes the environmental dust in the factory to exceed the standard, seriously affecting the safety of staff at work.
Design a dust collection device for coal silo of carbonization furnace, including dust collecting pipes and dust collecting covers, and use a induced fan and a bag dust collector to collect and separate the overflowing dust. The dust falls into the ash silo. The ash silo can be detached for easy cleaning, and spraying is set up The mechanism reduces dust.
It effectively avoids harsh environment in the site and improves the safety of staff. Through the combination of negative pressure suction and bag dust collector, it can effectively collect and purify dust.
Smart Images
Figure CN222250587U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbonization furnaces, in particular to a dust collecting device for a coal bunker of a carbonization furnace. Background Art
[0002] Carbonization furnaces are mainly divided into two types of carbonization equipment: self-ignition type and airflow type. At present, most of the airflow carbonization furnaces are used. The working principle of the airflow carbonization furnace is that first, qualified lump coal (10-80mm) is sent into each loading bin of the carbonization furnace through a cloth belt. The raw coal in the loading bin enters the auxiliary material box through an electro-hydraulic roller valve. Then the raw coal enters the furnace from the auxiliary material box and slowly moves downward to the drying layer, during which it is dried by an ascending airflow of about 150°C, and most of the external water in the raw coal is precipitated. Then it continues to move down to the preheating layer and is preheated by an airflow of about 450°C. The external water in the raw coal is completely precipitated and partially volatilized. Then the raw coal continues to move down to the dry distillation area and is heated by 600°C high-temperature gas. In this area, the water in the raw coal evaporates, and most of it is The raw coal is broken and distilled into upgraded coal. The upgraded coal then moves down to the cooling zone, where it is cooled to about 350°C by the coal-air mixture from the gas duct and the steam and water gas generated during the quenching process. The upgraded coal then moves down to the quenching zone, where it is intermittently sprayed with quenching water to further cool it down. The upgraded coal is then evenly discharged into the water seal of the horizontal scraper box through the material shifting valve. The upgraded coal is cooled down to a saturated water state at room temperature again, and then transported to the water seal of the slope section through the parallel section scraper. The upgraded coal is transported to the middle part for gas drying by the slope section scraper. After drying, it is sent to the coke hopper, and finally transported to the coke shed by the coke conveyor belt at the bottom of the coke hopper. If the upgraded coal is unqualified, it can be discharged to the ground from the side discharge port of the coke hopper, and then transported to the raw coal pit by a forklift.
[0003] The airflow carbonization furnace is different from the spontaneous combustion carbonization method in that it allows the combustible gas to circulate outside the furnace core, and is heated externally and recycled internally. Multiple furnaces can be carbonized in one day, which greatly shortens the production cycle and improves the carbonization production efficiency.
[0004] However, during the use of the carbonization furnace, due to system adjustments, operating condition fluctuations, abnormal production conditions and electro-hydraulic roller valve failures, the dust inside the carbonization furnace overflowed from the loading silo, causing the dust in the factory environment to exceed the standard and the working environment to become poor, seriously affecting the safety of personnel on duty. Utility Model Content
[0005] The utility model aims to provide a dust collection device for a coal bunker of a carbonizing furnace, so as to solve the problem that during the use of the existing carbonizing furnace, due to the failure of the electro-hydraulic roller valve, the dust in the factory environment exceeds the standard, which seriously affects the safety of the personnel on duty.
[0006] In order to achieve the above-mentioned purpose, the basic solution provided by the utility model is: a dust collection device for a coal bunker of a carbonizing furnace, comprising a dust removal pipe, on which a plurality of dust collecting hoods are arranged, each of the dust collecting hoods is located directly above the upper bunker of the carbonizing furnace, and one end of the dust removal pipe is respectively provided with an induced draft fan and a bag dust collector, and the bottom of the bag dust collector is detachably connected to an ash bunker.
[0007] The principle of the utility model is as follows: when dust appears on the upper bin of the carbonizing furnace, first start the induced draft fan and the bag dust collector, then under the action of the induced draft fan, the dust overflowing from the upper bin of the carbonizing furnace enters the bag dust collector through the dust collecting hood and the dust collecting pipe, and then the bag dust collector separates the dust, and the separated dust falls into the ash bin. When the ash bin is full of dust, first turn off the bag dust collector and the induced draft fan, then disassemble the ash bin, and then transport it to the cleaning site for cleaning. After the cleaning is completed, install the ash bin to its original position.
[0008] The beneficial effects of the utility model are as follows: a dust collecting hood is arranged on the upper silo of the carbonization furnace, the overflowing dust is sucked by negative pressure, and then the dust is collected by a bag dust collector, and then the purified gas is discharged into the environment, thereby avoiding the bad environment in the field and the hidden dangers to the personal safety of the staff.
[0009] Option 2, which is a preferred option of the basic option, the dust collecting hood is in a bucket shape; the dust collecting hood is configured in a bucket shape to facilitate dust collection.
[0010] Option three is a preferred option of the basic option. The lower ash end flange of the bag-type dust collector is connected to a conveying pipe, a pressure plate is fixedly connected to the conveying pipe, an annular groove is opened on the top of the peripheral side of the ash bin, an annular plate is slidably connected to the annular groove, and one end of the annular plate is bolted to the pressure plate. A detachable connection is set between the bag-type dust collector and the ash bin to facilitate cleaning of the ash bin.
[0011] Option 4, which is the preferred option of the basic option, is provided with a forklift hole on the ash bin; the forklift hole is provided on the ash bin to facilitate forklift transportation.
[0012] Option 5, which is the preferred option of the basic option, is provided with an observation window on the ash bin; the observation window is provided on the ash bin to facilitate observation of the ash falling situation in the ash bin.
[0013] Option six, which is the preferred option of the basic option, is that a spray mechanism is provided on the ash bin; the spray mechanism is provided on the ash bin to facilitate dust reduction in the ash bin.
[0014] Option seven is a preferred embodiment of Option six. The spray mechanism includes a water tank. A water pipe is fixedly passed through the pressure plate. A nozzle is provided at one end of the water pipe located in the ash bin. The water pipe is connected to the water tank. A water pump and a valve are provided on the water pipe respectively. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a three-dimensional diagram of a dust collecting device for a coal bunker of a carbonization furnace according to the utility model;
[0016] Figure 2 It is a three-dimensional diagram of a dust collecting device for a coal bunker of a carbonization furnace according to the utility model;
[0017] Figure 3 This is an exploded view of an ash bin in a carbonization furnace coal bin dust collection device of the utility model;
[0018] Figure 4 The utility model is a three-dimensional diagram of a dust collecting hood in a dust collecting device of a coal bunker of a carbonizing furnace. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below through specific implementation methods:
[0020] The reference numerals in the drawings of the specification include: 1 dust removal pipe; 2 dust collection hood; 3 carbonization furnace upper bin; 4 induced draft fan; 5 bag filter; 51 conveying pipe; 52 pressure plate; 6 ash bin; 61 annular groove; 62 annular plate; 63 forklift hole; 64 observation window; 7 spray mechanism; 71 nozzle; 72 water pipe; 73 water tank; 74 water pump; 75 valve.
[0021] like Figures 1 to 4 As shown: a dust collection device for a coal bunker of a carbonizing furnace, comprising a dust removal pipe 1, a plurality of dust collecting hoods 2 are connected to the flange on the dust removal pipe 1, each dust collecting hood 2 is located directly above the upper bunker 3 of the carbonizing furnace, the dust collecting hood 2 is bucket-shaped, one end of the dust removal pipe 1 is fixedly connected to an induced draft fan 4 and a bag-type dust collector 5 respectively, the bottom of the bag-type dust collector 5 is detachably connected to an ash bunker 6, the lower ash end flange of the bag-type dust collector 5 is connected to a conveying pipe 51, the end of the conveying pipe 51 away from the bag-type dust collector 5 is fixedly connected to a pressing plate 52, an annular groove 61 is opened on the top of the peripheral side of the ash bunker 6, an annular plate 62 is slidably connected to the annular groove 61, one end of the annular plate 62 is bolted to the pressing plate 52, a forklift hole 63 and an observation window 64 are provided on the ash bunker 6, and the floor where the upper bunker 3 of the carbonizing furnace is located is higher than the floor of the ash bunker 6.
[0022] A spray mechanism 7 is provided on the ash bin 6, and the spray mechanism 7 includes a water tank 73. A water pipe 72 is fixedly passed through the pressure plate 52. One end of the water pipe 72 located in the ash bin 6 is detachably connected to a spray head 71. The water pipe 72 is connected to the water tank 73. A water pump 74 and a valve 75 are fixedly connected to the water pipe 72 respectively.
[0023] The implementation method of this embodiment is as follows: when dust appears on the upper bin 3 of the carbonization furnace, the induced draft fan 4 and the bag dust collector 5 are first started, and then under the action of the induced draft fan 5, the dust overflowing from the upper bin 3 of the carbonization furnace enters the bag dust collector 5 through the dust collecting cover 2 and the dust collecting pipe 1, and then the bag dust collector 5 separates the dust, and the separated dust falls into the ash bin 6 through the conveying pipe 51, and then the dust falling situation in the ash bin 6 is observed through the observation window 64. When the ash bin 6 is full of dust, the bag dust collector 5 and the induced draft fan 4 are first closed, and then the valve 75 is opened. And water pump 74, so that the water in water tank 73 is sprayed into ash bin 6, and the dust in ash bin 6 is treated by dust reduction. After the water and dust are fully bonded, use a wrench to unscrew the bolts on pressure plate 52 and annular plate 62, and then use a forklift to transport ash bin 6 to the cleaning place, then pull out annular plate 62 from annular groove 61, and then clean ash bin. After cleaning, first embed annular plate 62 into annular groove 61, and then use a forklift to put ash bin 6 back to its original position, and then pull up annular plate 62, and connect annular plate 62 and pressure plate 52 by bolts.
[0024] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A dust collection device for coal bunker of carbonization furnace, characterized in that: The invention comprises a dust removal pipe (1), wherein a plurality of dust collecting hoods (2) are provided on the dust removal pipe (1), each of the dust collecting hoods (2) is located directly above the upper material bin (3) of the carbonization furnace, and an induced draft fan (4) and a bag dust collector (5) are provided at one end of the dust removal pipe (1), and an ash bin (6) is detachably connected to the bottom of the bag dust collector (5).
2. A carbonization furnace coal bunker dust collection device according to claim 1, characterized in that: The dust collecting cover (2) is in the shape of a bucket.
3. A carbonization furnace coal bunker dust collection device according to claim 1, characterized in that: The lower ash end flange of the bag filter (5) is connected to a conveying pipe (51), a pressing plate (52) is fixedly connected to the conveying pipe (51), an annular groove (61) is formed on the top of the circumference of the ash bin (6), an annular plate (62) is slidably connected to the annular groove (61), and one end of the annular plate (62) is bolted to the pressing plate (52).
4. A carbonization furnace coal bunker dust collection device according to claim 1, characterized in that: The ash bin (6) is provided with a forklift hole (63).
5. The carbonization furnace coal bunker dust collection device according to claim 1, characterized in that: The ash bin (6) is provided with an observation window (64).
6. A carbonization furnace coal bunker dust collection device according to claim 3, characterized in that: The ash bin (6) is provided with a spraying mechanism (7).
7. A carbonization furnace coal bunker dust collection device according to claim 6, characterized in that: The spray mechanism (7) comprises a water tank (73). A water pipe (72) is fixedly passed through the pressure plate (52). A spray head (71) is provided at one end of the water pipe (72) located in the ash bin (6). The water pipe (72) is in communication with the water tank (73). A water pump (74) and a valve (75) are respectively provided on the water pipe (72).