Volatile organic compounds (VOCS) treatment device of gasification slag conveyor

Abstract

The utility model relates to the technical field of gasification submerged chain conveyors, in particular to a VOCS (volatile organic compounds) treatment device of a gasification submerged chain conveyor, which comprises a submerged chain conveyor body, a submerged chain conveyor slag discharge pipe is connected onto the submerged chain conveyor body, the end face of the submerged chain conveyor slag discharge pipe is connected to one end of a transition frame, the other end of the transition frame is connected with an air suction cover, an inner cavity is arranged inside the transition frame, and the inner cavity is communicated with the inner cavity. Sliding grooves are formed in the inner walls of the two sides of the inner cavity. The submerged chain conveyor has the beneficial effects that the transition frame and the air suction cover are arranged at the submerged chain conveyor slag discharging pipe of the submerged chain conveyor body, escaped VOCS firstly passes through the transition frame, harmful substances in harmful gas can be filtered and purified, impurities can be removed, then the VOCS passes through the dust suction cover and the gas conveying pipe, and finally the VOCS enters the combustion fan. The combustion-supporting fan is connected to the hot-blast stove, combustion is conducted in the hot-blast stove through the combustion-supporting fan, the combustion treatment effect is good, all emissions after combustion can reach the standard to be discharged, and VOCS on site is effectively treated.

Description

Technical Field

[0001] This utility model relates to the field of gasification slag removal machine technology, specifically a VOCs treatment device for a gasification slag removal machine. Background Technology

[0002] As is well known, the gasification slag removal machine is driven by a motor to rotate the main shaft, which in turn drives the chain or wire rope to pull, thereby moving the slag bucket back and forth in the well or tunnel. The slag slurry generated by the gasification unit is periodically discharged from the slag lock bucket into the slag removal area of ​​the front chamber of the slag removal machine. After a period of sedimentation and slag removal, the valve between the front and rear chambers is opened. The ash water that has settled in the upper part of the front chamber flows into the overflow area of ​​the rear chamber and is discharged by the slag pool pump for recycling. The scraper of the slag removal machine drags the ash slag that has settled in the front chamber. After preliminary dewatering in the inclined section conveying process, the ash slag is unloaded into the discharge slag hopper and enters the next stage conveying equipment or is directly loaded onto trucks for transportation.

[0003] As the temperature rises, VOCs released from the high-temperature ash and black water after slag is discharged from the gasifier slag lock hopper are gradually released. Currently, the existing slag removal machine uses a direct venting method, which will lead to excessively high concentrations of combustible gases in the slag removal machine, posing a safety risk of explosion. Furthermore, the release of gas will trigger an alarm in the on-site gas monitoring system, causing employees to misinterpret normal alarms.

[0004] Therefore, this utility model proposes a VOCs treatment device for a gasification slag removal machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a VOCs treatment device for a gasification slag removal machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a VOCs treatment device for a gasification slag removal machine, comprising a slag removal machine body, a slag removal machine slag discharge pipe connected to the slag removal machine body, one end of the slag removal machine slag discharge pipe being connected to a transition frame, the other end of the transition frame being connected to a suction hood, an inner cavity being provided inside the transition frame, and sliding grooves being provided on both sides of the inner wall of the inner cavity, and a dust baffle plate, a transition plate, a purification packing plate, a lifting plate and a brush being provided in the inner cavity;

[0007] The dust baffle has a bottom frame at the bottom of its surface, a drop opening on the surface of the bottom frame, and a storage cavity inside the bottom frame. The drop opening and the storage cavity are connected.

[0008] Preferably, the suction hood is connected to the gas supply pipe, the gas supply pipe is equipped with an inlet regulating valve, and the end of the gas supply pipe is connected to a combustion fan via a flange.

[0009] Preferably, the inner cavity and the suction hood, the slag extractor slag pipe are communicated, the transition frame is fixed with the limiting plate on the two side outer walls, the first mounting hole is arranged on the surface of the limiting plate.

[0010] Preferably, the dust baffle, the transition plate and the purification filler are all fixed below the cover plate, the dust baffle is provided with one, the dust baffle is located on one side of the cover plate, the cover plate is arranged close to the slag extractor slag pipe, the cover plate is in square plate shape, the cover plate is located on the outer side of the transition frame, the second mounting hole is arranged on the surface of the vertical plate fixed on the two sides of the upper surface of the cover plate, the double-end bolt is mounted in the first mounting hole and the second mounting hole.

[0011] Preferably, the sealing gasket is fixed below the cover plate, the size of the sealing gasket is larger than the outlet size of the inner cavity, the surface of the sealing gasket is in contact with and abuts against the surface of the transition frame.

[0012] Preferably, the handle is fixed on the upper surface of the cover plate, the handle is provided with two groups, the two groups of handles are symmetrically distributed about the central axis of the cover plate, the slide strip is fixed on the two sides of the cover plate, the slide strip and the slide groove are in sliding connection, the cross sections of the slide strip and the slide groove are all in semicircular shape.

[0013] Preferably, the lifting plate is close to the slag extractor slag pipe, the plurality of brushes are fixed on the surface of the side of the lifting plate facing the dust baffle, the plurality of brushes are distributed in matrix shape on the surface of the lifting plate, the surface of the brush is in contact with the surface of the dust baffle.

[0014] Preferably, the air cylinder is arranged above the transition frame, the output end of the air cylinder extends into the transition frame, the output end of the air cylinder is fixedly connected to the central position on the surface of the lifting plate.

[0015] Preferably, the transition plate and the purification filler plate are close to each other, the transition plate is close to the dust baffle, the transition plate and the purification filler plate are all provided with a plurality of, the plurality of transition plates and the plurality of purification filler plates are linearly distributed at equal intervals below the cover plate, the plurality of transition holes in matrix shape are arranged on the surface of the transition plate.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a kind of gasification slag extractor VOCS treatment devices, transition frame and suction hood are set in the slag extractor slag pipe of the slag extractor body, harmful gas in harmful substance in the harmful gas in VOCS that first passes through transition frame can be filtered and purified and can be removed impurity, subsequently through dust hood and gas pipe, finally into combustion air fan, in actual use, combustion air fan is connected to hot blast stove, is introduced into hot blast stove by combustion air fan and is combusted, combustion treatment effect is good, each discharge after combustion can reach standard discharge, that is, effectively treat the VOCS of scene. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is the whole three-dimensional structure schematic view of the utility model;

[0020] Figure 3 It is Figure 2 The structure enlarged view of A in the middle;

[0021] Figure 4 It is the lifting plate structure schematic view of the utility model;

[0022] Figure 5 It is the cover plate structure schematic view of the utility model;

[0023] Figure 6 It is the bottom frame structure schematic view of the utility model.

[0024] In the drawing: 1, the slag machine body; 2, the slag machine lower slag pipe; 3, cylinder; 4, cover plate; 5, transition frame; 6, air suction hood; 7, import regulating valve; 8, gas conveying pipe; 9, combustion air fan; 10, side slide groove; 11, inner chamber; 12, limit plate; 13, first mounting hole; 14, brush; 15, lifting plate; 16, dust baffle; 17, bottom frame; 18, slide bar; 19, sealing gasket; 20, handle; 21, vertical plate; 22, second mounting hole; 23, falling mouth; 24, storage cavity; 25, transition plate; 26, purification filler plate; 28, double head bolt. DETAILED DESCRIPTION

[0025] For the purposes of brevity and clarity, principles of the embodiments are described herein by reference to examples. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent that the embodiments, and of the following detailed description, are susceptible to change in real time without departing from the spirit and scope of the embodiments. In some instances, well-known methods and structures have not been described in detail in order to avoid unnecessarily obscuring the embodiments. Additionally, all embodiments can be used in combination with each other.

[0026] Embodiment one: please refer to Figures 1 to 6 The utility model provides a technical scheme: a gasification slag machine VOCS treatment device, including the slag machine body 1, the slag machine body 1 is connected with the slag machine lower slag pipe 2, the slag machine lower slag pipe 2 end face is connected to the one end of transition frame 5, the other end of transition frame 5 is connected with air suction hood 6, and the inside of transition frame 5 is provided with inner chamber 11, and the both sides inner wall of inner chamber 11 is provided with slide groove, and inner chamber 11 is provided with dust baffle 16, transition plate 25, purification filler plate 26, lifting plate 15 and brush 14;

[0027] The surface bottom of the dust baffle 16 is provided with a bottom frame 17, the surface of the bottom frame 17 is provided with a falling opening 23, the inside of the bottom frame 17 is provided with a storage cavity 24, the falling opening 23 and the storage cavity 24 are communicated, the air suction cover 6 is connected to the gas conveying pipe 8, the gas conveying pipe 8 is provided with an inlet adjusting valve 7, the end of the gas conveying pipe 8 is connected with the combustion-supporting fan 9 through a flange;

[0028] In use, according to the size of the slag extractor 2 and the gas volume, the air volume of 20-30 m3 / min can meet the VOCs collection requirement, the air volume of a single fan is 20000 m3 / h, which can not only attract all combustible and toxic gases, but also sufficiently dilute the combustible and toxic gas concentration, so as to not form explosive gas, the combustion-supporting fan 9 is connected to the hot blast stove burner (not shown in the figure), the VOCs is introduced into the hot blast stove through the combustion-supporting fan 9 for combustion, the temperature of the hot blast stove combustion chamber is above 800 degrees, and the VOCs is completely decomposed into carbon dioxide gas.

[0029] In the embodiment one, the inner cavity 11 is communicated with the air suction cover 6 and the slag extractor 2, the two side outer walls of the transition frame 5 are fixed with the limiting plates 12, the surface of the limiting plate 12 is provided with the first mounting hole 13, the dust baffle 16, the transition plate 25 and the purification filler are all fixed below the cover plate 4, the dust baffle 16 is one, the dust baffle 16 is located on one side of the cover plate 4, the cover plate 4 is arranged close to the slag extractor 2, the cover plate 4 is a square plate, the cover plate 4 is located outside the transition frame 5, the upper surface of the cover plate 4 is fixed with the vertical plates 21 on both sides, the surface of the vertical plate 21 is provided with the second mounting hole 22, and the double-end bolts 28 are installed in the first mounting hole 13 and the second mounting hole 22;

[0030] The upper surface of the cover plate 4 is fixed with the handles 20, the handles 20 are two groups, the two groups of handles 20 are symmetrically distributed about the central axis of the cover plate 4, the two sides of the cover plate 4 are fixed with the sliding strips 18, and the sliding strip 18 and the sliding groove are in sliding connection, and the cross sections of the sliding strip 18 and the sliding groove are both semicircular;

[0031] In use, the two groups of handles 20 are arranged, so that the operator can conveniently hold or hook connection, the cover plate 4 can be conveniently lifted and moved, the dust baffle 16 and the activated carbon filler can be conveniently drawn out from the inner cavity 11 for replacement and treatment, when the cover plate 4 is installed, the sliding strip 18 and the sliding groove are first butt-jointed, so that the whole can stably enter the inner cavity 11, then the sealing gasket 19 and the surface of the transition frame 5 are in contact and abut, the first mounting hole 13 and the second mounting hole 22 are corresponded, and the double-end bolts 28 are installed in the two mounting holes, so that the cover plate 4 is fixedly arranged;

[0032] The lower surface of the cover plate 4 is fixed with the sealing gasket 19, the size of the sealing gasket 19 is greater than that of the outlet of the inner cavity 11, and the surface of the sealing gasket 19 and the transition frame 5 are in contact and abut;

[0033] In use, after the cover plate 4 is installed, the sealing gasket 19 and the transition plate 25 are in surface contact and abut, improving the sealing of the connection between the cover plate 4 and the transition frame 5, and avoiding gas leakage.

[0034] In example three, based on example two, the lifting plate 15 is close to the slag tapping pipe 2 of the slag conveyor, a plurality of brushes 14 are fixed on the side surface of the lifting plate 15 facing the dust baffle 16, the plurality of brushes 14 are distributed in a matrix on the surface of the lifting plate 15, the brushes 14 are in surface contact with the dust baffle 16, a gas cylinder 3 is arranged above the transition frame 5, the output end of the gas cylinder 3 extends into the transition frame 5, and the output end of the gas cylinder 3 is fixedly connected to the center position of the surface of the lifting plate 15.

[0035] In use, the escaped VOCs first pass through the transition frame 5, enter the transition frame 5, and first pass through the dust baffle 16, which can intercept larger impurities and particulate matters in the gas, the lifting plate 15 is driven to move up and down by starting the gas cylinder 3, and the brushes 14 are used to clean the surface of the dust baffle 16, the bottom of the surface of the dust baffle 16 is provided with a bottom frame 17, the inside of the bottom frame 17 is provided with a storage cavity 24, the scraped impurities and particulate matters fall into the storage cavity 24 through the falling port 23, thereby preventing the impurities from entering the subsequent treatment system, prolonging the service life of the equipment, keeping the dust baffle 16 clean, and ensuring the stability of the purification effect.

[0036] The transition plates 25 and the purification filler plates 26 are close to each other, the transition plates 25 are close to the dust baffle 16, and the transition plates 25 and the purification filler plates 26 are provided with a plurality of transition plates 25 and a plurality of purification filler plates 26, the plurality of transition plates 25 and the plurality of purification filler plates 26 are linearly distributed at equal distances below the cover plate 4, and the surface of the transition plate 25 is provided with a plurality of transition holes arranged in a matrix.

[0037] In use, the surface openings of the transition holes are all treated with an inverted bevel, the gas is guided to pass through the purification filler plates 26 more uniformly, and the purification effect is enhanced, and the purification filler plates 26 adopt activated carbon filler.

[0038] Working principle: in actual use, by setting transition frame 5 and air suction cover 6 at the slag conveyor lower slag pipe 2 of the slag conveyor body 1, the escaped VOCS first passes through the transition frame 5, which can filter and purify harmful substances in harmful gases and remove impurities, then passes through the dust suction cover and the gas conveying pipe 8, and finally enters the combustion air fan 9. In actual use, the combustion air fan 9 is connected to the hot blast furnace (not shown in the figure), and is introduced into the hot blast furnace through the combustion air fan 9 for combustion. The temperature of the hot blast furnace combustion chamber is above 800 degrees, the VOCS is completely decomposed into carbon dioxide gas, the combustion treatment effect is good, and after combustion, all emissions can meet the emission standard, that is, the VOCS on site is effectively treated, the problem of VOCS escaping from the gasification slag conveyor in high-temperature ash and black water is solved, the explosion safety risk caused by too high concentration of combustible gas in the slag conveyor is avoided, the on-site gas monitoring system alarm caused by gas release is reduced, and the misjudgment of employees to the normal alarm is avoided.

[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gasification of a slag machine VOCs management device, comprising a slag machine body (1), the slag machine body (1) is connected with a slag machine slag pipe (2), characterized in that: The end face of the slag conveyer slag outlet pipe (2) is connected to one end of the transition frame (5), the other end of the transition frame (5) is connected with the air suction hood (6), the inner cavity (11) is arranged in the transition frame (5), the inner cavity (11) is provided with a sliding groove on the inner wall of both sides, the inner cavity (11) is provided with a dust baffle (16), a transition plate (25), a purification filler plate (26), a lifting plate (15) and a brush (14); The surface of the dust baffle (16) is provided with a bottom frame (17), the surface of the bottom frame (17) is provided with a falling opening (23), the inside of the bottom frame (17) is provided with a storage cavity (24), and the falling opening (23) and the storage cavity (24) are communicated.

2. A gasification slaker VOCs abatement device according to claim 1, characterized in that: The air suction hood (6) is connected to the gas conveying pipe (8), the gas conveying pipe (8) is provided with an inlet adjusting valve (7), and the end of the gas conveying pipe (8) is connected with the combustion air fan (9) through the flange.

3. A gasification slagger VOCs abatement device according to claim 1, characterized in that: The inner cavity (11) is communicated with the air suction hood (6) and the slag conveyer slag outlet pipe (2), and the outer wall of both sides of the transition frame (5) is fixedly provided with a limiting plate (12), and the surface of the limiting plate (12) is provided with a first mounting hole (13).

4. A gasification slagger VOCs abatement device according to claim 1, characterized in that: The dust baffle (16), the transition plate (25) and the purification filler are all fixed below the cover plate (4), the dust baffle (16) is provided with one, the dust baffle (16) is located on one side of the cover plate (4), the cover plate (4) is arranged close to the slag conveyer slag outlet pipe (2), the cover plate (4) is in the shape of a square plate, the cover plate (4) is located outside the transition frame (5), the upper surface of the cover plate (4) is fixedly provided with a vertical plate (21) on both sides, the surface of the vertical plate (21) is provided with a second mounting hole (22), and the first mounting hole (13) and the second mounting hole (22) are provided with a double-headed bolt (28).

5. A gasification slagger VOCs abatement device according to claim 4, characterized in that: The lower surface of the cover plate (4) is fixedly provided with a sealing gasket (19), the size of the sealing gasket (19) is greater than the outlet size of the inner cavity (11), and the surface of the sealing gasket (19) is in contact with and tightly abuts against the surface of the transition frame (5).

6. A gasification slagger VOCs abatement device according to claim 4, characterized in that: The upper surface of the cover plate (4) is fixedly provided with a handle (20), the handle (20) is provided with two groups, the two groups of handles (20) are symmetrically distributed about the central axis of the cover plate (4), the two sides of the cover plate (4) are fixedly provided with a sliding strip (18), the sliding strip (18) and the sliding groove are in sliding connection, and the cross sections of the sliding strip (18) and the sliding groove are both in the shape of a semicircle.

7. A gasification slagger VOCs abatement device according to claim 1, characterized in that: The lifting plate (15) is close to the slag conveyer slag outlet pipe (2), a plurality of brushes (14) are fixedly arranged on the surface of one side of the lifting plate (15) facing the dust baffle (16), the plurality of brushes (14) are arranged in a matrix shape on the surface of the lifting plate (15), and the surface of the brush (14) is in contact with the surface of the dust baffle (16).

8. A gasification slaker VOCs abatement device according to claim 1, characterized in that: The upper portion of the transition frame (5) is provided with a gas cylinder (3), the output end of the gas cylinder (3) extends into the transition frame (5), and the output end of the gas cylinder (3) is fixedly connected to the central position of the surface of the lifting plate (15).

9. A gasification slaker VOCs abatement device according to claim 1, characterized in that: The transition plate (25) and the purification filler plate (26) are close to each other, the transition plate (25) is close to the dust screen (16), the transition plate (25) and the purification filler plate (26) are each provided with a plurality of, the plurality of transition plates (25) and the purification filler plates (26) are linearly distributed at equal intervals below the cover plate (4), and the surface of the transition plate (25) is provided with a plurality of transition holes distributed in a matrix shape.

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