Ash removal device for gasification furnace

Abstract

The utility model discloses an ash removal device for a gasification furnace, and relates to the technical field of coal gasification production. The sliding plate is assembled in an inner cavity of the box body in a sliding mode, the driver drives the sliding plate to move in the inner cavity of the box body through the push rod, and therefore the size of the working cavity is changed. One end of the suction connecting pipe is connected to the box body and communicated with the working chamber, and the other end of the suction connecting pipe is used for sucking from the gasification furnace; one end of the discharge pipe is connected to the box body and communicated with the working chamber; the suction connecting pipe is provided with a first one-way valve, the discharge pipe is provided with a second one-way valve, when the volume of the working chamber is increased, external air carrying stove ash enters the working chamber from the suction connecting pipe through the first one-way valve, and when the volume of the working chamber is reduced, the air carrying stove ash in the working chamber is discharged from the discharge pipe through the second one-way valve; the driving part enables the sliding plate to move circularly in a reciprocating mode, and suction driving force can be generated continuously.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gasification production, and further relates to an ash cleaning device for a gasifier. Background Art

[0002] The entrained flow gasification method is a coal gasification method. Pulverized coal is used as raw material and is sprayed into the gasifier together with the gasifying agent. The reaction temperature is very high, and the ash is discharged in a molten state. The advantages are high gasification intensity and wide coal type adaptability. The carbon conversion rate of some entrained flow gasifiers can reach 99%. However, the entrained flow gasification is a co-current operation, and the thermal efficiency in the furnace is not high, and a large heat recovery system is required. At the same time, the high-temperature molten slag corrodes and erodes the furnace lining seriously, and the furnace lining material must be carefully selected.

[0003] In the actual application process, it is necessary to clean and pressurize the gasifier. Subsequently, during the use process, if it is not convenient to clean and pressurize it, the use convenience of the device will be affected, and the use efficiency of the device will be reduced.

[0004] For those skilled in the art, how to clean the ash of the gasifier is a technical problem that needs to be solved currently. Summary of the Utility Model

[0005] The core of the utility model is to provide an ash cleaning device for a gasifier, which uses a driver to drive a push rod to move back and forth continuously, realizes the actions of air extraction and discharge, and continuously provides the driving force for suction. The specific scheme is as follows:

[0006] An ash cleaning device for a gasifier, comprising:

[0007] A base for providing support;

[0008] A box body assembled on the base, with a cavity inside;

[0009] A driving component, including a driver, a push rod, and a sliding plate. The sliding plate is connected to the push rod, and the outer periphery of the sliding plate contacts the inner cavity surface of the box body. The driver drives the push rod to reciprocally translate the sliding plate in the cavity inside the box body to change the volume of the working chamber formed by the sliding plate and the box body;

[0010] A suction connecting pipe, one end of which is connected to the box body and communicates with the working chamber, and the other end is used for suction from the gasifier. The suction connecting pipe is provided with a first one-way valve for one-way conduction into the box body;

[0011] A discharge pipe, one end of which is connected to the box body and communicates with the first chamber. The discharge pipe is provided with a second one-way valve for one-way discharge from the box body.

[0012] Optionally, the driver includes a housing, a telescopic rod, and a guide plate. The housing is fixed to the base, and the guide plate is connected to the telescopic rod and the push rod respectively. A slide bar is provided on the inner surface of the housing to guide the translation of the guide plate.

[0013] Optionally, one end of the push rod is hinged to the sliding plate, and the other end is hinged to a crank, which is driven by a motor to rotate.

[0014] Optionally, the box body includes a box main body and a cover body. One side edge of the cover body is hinged to the box main body, and a locking mechanism is provided relative to the other side edge.

[0015] Optionally, the locking mechanism includes a fixed block, a plug rod, and a return spring. The fixed block is fixed to the cover body, the plug rod is slidably inserted into the fixed block, and the return spring is used to push the plug rod into the jack of the box main body to lock the cover body.

[0016] Optionally, at least four mounting ear plates are provided at the edge of the base. The mounting ear plates are used for fixing and installing the base or binding a shoulder strap; an anti-slip pattern is provided on the lower surface of the mounting ear plates.

[0017] Optionally, the suction connecting pipe includes a hard pipe portion and a flexible pipe portion. The hard pipe portion is connected to the box body, and the flexible pipe portion is connected to the hard pipe portion.

[0018] Optionally, the hard pipe portion is provided with a bending area.

[0019] Optionally, the discharge pipe is detachably connected to an ash collection bag for collecting furnace ash.

[0020] Optionally, the box body is a rectangular parallelepiped shell or a cylindrical shell; a handle for gripping is provided on the base or the box body.

[0021] The utility model provides an ash cleaning device for a gasifier. A cavity is provided inside the box body; a sliding plate is slidably assembled in the cavity of the box body. The driver drives the sliding plate to move in the cavity inside the box body through a push rod, thereby changing the volume of the working chamber; one end of the suction connecting pipe is connected to the box body and communicates with the working chamber, and the other end is used for sucking from the gasifier; one end of the discharge pipe is connected to the box body and communicates with the working chamber; a first one-way valve is provided on the suction connecting pipe, and a second one-way valve is provided on the discharge pipe. When the volume of the working chamber increases, the outside air carries furnace ash and enters the working chamber through the first one-way valve from the suction connecting pipe. When the volume of the working chamber decreases, the air in the working chamber carries furnace ash and is discharged from the discharge pipe through the second one-way valve; the driving component makes the sliding plate move reciprocally, and can continuously generate the driving force for suction. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is an overall axonometric schematic diagram of an embodiment of the ash cleaning device for the gasifier of the present invention;

[0024] Figure 2 For Figure 1 It is a partial enlarged view of part A in

[0025] Figure 3 It is an axonometric schematic diagram of the box body cooperating with the connecting push rod and the sliding plate;

[0026] Figure 4 It is an axonometric schematic diagram of an embodiment of the driver cooperating with the push rod;

[0027] Figure 5 It is a schematic diagram of the air flow direction of the embodiment in which the push rod is fixedly connected to the sliding plate;

[0028] Figure 6 It is a schematic diagram of the air flow direction of the embodiment in which the push rod is hinged to the sliding plate.

[0029] The figure includes:

[0030] Base 1, mounting ear plate 11, box body 2, box main body 21, cover body 22, locking mechanism 23, fixing block 231, insertion rod 232, return spring 233, driving component 3, driver 31, housing 311, telescopic rod 312, guiding plate 313, sliding strip 314, push rod 32, sliding plate 33, crank 34, suction connecting pipe 4, first one-way valve 41, discharge pipe 5, second one-way valve 51, working chamber A. Specific embodiments

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will, in conjunction with the drawings and specific embodiments, introduce and explain the ash cleaning device for the gasifier of the present invention in detail.

[0032] Combined with Figure 1As shown in the figure, the utility model provides an ash cleaning device for a gasifier, which includes a base 1, a box body 2, a driving component 3, a suction connecting pipe 4, a discharge pipe 5 and other structures. Among them, the base 1 is used to provide support, and structures such as the box body 2 are installed on the base 1. The base 1 and the box body 2 can be structures that are independently processed and assembled later, or can be integrally processed and formed. The base 1 supports the box body 2. Generally, in the projection of the base 1 and the box body 2 in the direction perpendicular to their installation surfaces, the area of the base 1 is larger than the area of the box body 2, but this relationship is not absolute.

[0033] The box body 2 is assembled on the base 1, and a cavity is provided inside the box body 2. The driving component 3 includes a driver 31, a push rod 32, and a sliding plate 33. The sliding plate 33 is connected to the push rod 32, and the outer periphery of the sliding plate 33 contacts the inner cavity surface of the box body 2; the driver 31 drives the push rod 32 to make the sliding plate 33 reciprocate and translate in the cavity inside the box body 2 to change the volume of the working chamber formed by the sliding plate 33 and the box body 2; the rodless cavity formed by the cooperation of the box body 2 and the sliding plate 33 is the working chamber. Figure 3 As shown in the figure, where A represents the working chamber. When the sliding plate 33 reciprocates relative to the box body 2, the volume of the working chamber A changes, thereby changing the pressure in the working chamber, and realizing the function of pumping air from the outside or exhausting air to the outside.

[0034] As shown in Figure 1 the figure, one end of the suction connecting pipe 4 is connected to the box body 2 and communicates with the working chamber, and the other end is used to suck from the gasifier (not shown in the figure); as Figure 5 、 shown in Figure 6 , a first one-way valve 41 that conducts unidirectionally into the box body 2 is provided on the suction connecting pipe 4, and the first one-way valve 41 only allows gas to enter the working chamber A of the box body 2.

[0035] As shown in Figure 1 the figure, one end of the discharge pipe 5 is connected to the box body 2 and communicates with the first chamber, and the pipe orifice connection of the discharge pipe 5 is flush with the pipe orifice connection of the suction connecting pipe 4. As Figure 5 、 shown in Figure 6 , a second one-way valve 51 that discharges unidirectionally from the box body 2 is provided on the discharge pipe 5, and the second one-way valve 51 only allows gas to be discharged from the working chamber A to the outside.

[0036] As shown in Figure 5 、 Figure 6As shown, when the sliding plate 33 moves to the left to make the volume of the working chamber large, the pressure in the working chamber decreases, and the gas from the outside enters the working chamber through the suction connecting pipe 4 and the first one-way valve 41. When the gas enters, it carries the dust in the gasifier. When the sliding plate 33 moves to the right to make the volume of the working chamber small, the pressure in the working chamber increases, and the gas in the working chamber is discharged from the discharge pipe 5 through the second one-way valve 51. When the gas is discharged, it carries the dust. The sliding plate 33 is reciprocally translated in the box body 2 by the driver 31, periodically changing the volume of the working chamber, and continuously forming a suction effect. When in use, after the temperature of the gasifier is cooled to the allowable condition, the operator carries the dust cleaning device of the gasifier of the present utility model into the gasifier, and the end of the suction connecting pipe 4 is aligned with the position to be cleaned of dust, so that the dust can continuously enter the box body 2 and be discharged, completing the dust cleaning operation.

[0037] On the basis of the above solution, the driver 31 of the present utility model includes a housing 311, a telescopic rod 312, and a guiding plate 313, as shown in combination with Figure 4 As shown, one side surface of the housing 311 is removed; the housing 311 is fixed to the base 1, and the two opposite surfaces of the guiding plate 313 are respectively connected to the telescopic rod 312 and the push rod 32, and the acting force is transmitted between the telescopic rod 312 and the push rod 32 through the guiding plate 313. The inner surface of the housing 311 is provided with a slide bar 314 for guiding the translation of the guiding plate 313. The four peripheral edges of the guiding plate 313 contact the slide bar 314, so that the guiding plate 313 can smoothly perform a linear motion in the box body 2. Two slide bars 314 can be provided on the inner surface of each inner wall of the housing 311, and the slide bars 314 are made of a material with a low friction coefficient, making the translation of the guiding plate 313 smoother. It should be noted that the edge of the guiding plate 313 can be a straight side or a shape with a notch corresponding to the slide bar 314, and these should all be included in the protection scope of the present utility model.

[0038] In Figure 4 、 Figure 5 In the corresponding embodiment, the telescopic rod 312 can adopt driving forms such as an electric push rod or a cylinder. Correspondingly, the end of the push rod 32 is fixed to the surface of the sliding plate 33. The push rod 32 can be one, two or more, and the push rod 32 and the sliding plate 33 maintain synchronous translational motion.

[0039] The present utility model also provides another driving method; one end of the push rod 32 is hinged to the sliding plate 33, and the other end is hinged to the crank 34, and the crank 34 is driven to rotate by a motor. As shown in combination with Figure 6 As shown, one end of the crank 34 rotates around a point, and the power is driven by a motor, so that the other end of the crank 34 makes a circular motion. Figure 6The left end of the middle push rod 32 makes a circular motion, and the right end makes a translational motion. The entire push rod 32 makes a two-dimensional planar motion in space. When the crank 34 rotates (clockwise or counterclockwise), it can drive the sliding plate 33 to make a reciprocating translational motion. In this embodiment, the left side surface of the box body 2 in Figure 6 can be left vacant to facilitate the swinging of the push rod 32.

[0040] Combined with Figure 1 shown, the box body 2 of the present utility model includes a box main body 21 and a cover body 22. One side edge of the cover body 22 is hinged to the box main body 21, and a locking mechanism 23 is arranged relative to the other side edge. The locking mechanism 23 locks and cooperates the cover body 22 with the box main body 21 to form a cavity structure. The lower surface of the cover body 22 can contact the sliding plate 33. A sealing strip can be arranged at the position where the lower surface of the cover body 22 contacts the box main body 21 to enhance the sealing performance.

[0041] Combined with Figure 2 shown, the locking mechanism 23 provided by the present utility model includes a fixed block 231, a plug rod 232, and a return spring 233. The fixed block 231 is fixed to the cover body 22. The plug rod 232 is slidably inserted into the fixed block 231. The plug rod 232 includes a small-diameter smooth rod and a large-diameter stop block. The smooth rod part is slidably inserted into the through hole of the fixed block 231; the return spring 233 is used to push the plug rod 232 into the jack of the box main body 21 to lock the cover body 22. The return spring 233 is sleeved outside the smooth rod of the plug rod 232. One end of the return spring 233 abuts against the surface of the stop block, and the other end contacts the fixed block 231. The return spring 233 provides an elastic force to the plug rod 232, so that the end of the plug rod 232 can be inserted into the jack arranged in the box body 2, and the cover body 22 is always pressed on the upper surface of the box main body 21. When it is necessary to open the cover body 22, first insert the plug rod 232 out, and then the cover body 22 can be rotated open around the rotating shaft, and the internal cavity can be cleaned.

[0042] Combined with Figure 1 shown, at least four mounting ear plates 11 are arranged on the edge of the base 1. The mounting ear plates 11 are used for the base 1 to be fixedly installed or bound with a shoulder strap, and the base 1 can be fixed to a certain position or carried by an operator. The lower surface of the mounting ear plate 11 is provided with anti-slip lines to increase the friction and make the fixation more stable. In the carrying state, the discharge pipe 5 should be located at a lower position so that the dust in the box body 2 can be discharged outwards from the discharge pipe 5 as much as possible.

[0043] Specifically, the suction connection pipe 4 in the present utility model includes a hard pipe part and a flexible pipe part. The hard pipe part is connected to the box body 2, and the flexible pipe part is connected to the hard pipe part. The flexible pipe part can be held by an operator and can be extended into a distance for dust cleaning.

[0044] Combined with Figure 1As shown, the hard tube part of the utility model is provided with a bending area. When the inhaled gas carries larger hard particles, it can avoid directly impacting and damaging the sliding plate 33. The bending area plays a certain buffering role.

[0045] The discharge pipe 5 is detachably connected to an ash collecting bag for collecting furnace ash. When dust is discharged outwards from the box body 2 through the discharge pipe 5, it enters the ash collecting bag, and the dust is centrally collected. The gas is discharged from the pores of the bag to filter the dust, and it can be removed after collecting a certain amount.

[0046] Combined Figure 1 As shown, the box body 2 of the utility model is a cuboid shell or a cylindrical shell. In the translation direction of the sliding plate 33, the cross-sectional area of the inner cavity of the box body 2 is equal everywhere, so as to ensure that the edge of the sliding plate 33 contacts the inner cavity of the box body 2 at any position. A handle for grasping (not shown in the figure) is provided on the base 1 or the box body 2, which is convenient for grasping when moving.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slag cleaning device for a gasifier, characterized in that, Comprising: A base (1) for providing support; A box body (2) assembled on the base (1), with a cavity inside; A driving component (3), including a driver (31), a push rod (32), and a sliding plate (33). The sliding plate (33) is connected to the push rod (32), and the outer periphery of the sliding plate (33) contacts the inner cavity surface of the box body (2). The driver (31) drives the push rod (32) to reciprocate the sliding plate (33) in the cavity inside the box body (2) to change the volume of the working chamber formed by the sliding plate (33) and the box body (2); A suction connecting pipe (4), one end connected to the box body (2) and communicating with the working chamber, and the other end for sucking from a gasifier. The suction connecting pipe (4) is provided with a first one-way valve (41) that conducts unidirectionally into the box body (2); A discharge pipe (5), one end connected to the box body (2) and communicating with the first chamber. The discharge pipe (5) is provided with a second one-way valve (51) that conducts unidirectionally out of the box body (2).

2. The ash cleaning device for a gasifier according to claim 1, wherein, The driver (31) includes a housing (311), a telescopic rod (312), and a guiding plate (313). The housing (311) is fixed to the base (1), the guiding plate (313) is respectively connected to the telescopic rod (312) and the push rod (32), and the inner surface of the housing (311) is provided with a slide bar (314) for guiding the translation of the guiding plate (313).

3. The ash cleaning device for a gasifier according to claim 1, characterized in that, One end of the push rod (32) is hinged to the sliding plate (33), and the other end is hinged to a crank (34), and the crank (34) is driven to rotate by a motor.

4. The ash cleaning device for the gasifier according to claim 1, characterized in that, The box body (2) includes a box main body (21) and a cover body (22). One side edge of the cover body (22) is hinged to the box main body (21), and a locking mechanism (23) is provided relative to the other side edge.

5. The ash cleaning device for a gasifier according to claim 4, characterized in that The locking mechanism (23) includes a fixed block (231), a plug rod (232), and a return spring (233). The fixed block (231) is fixed to the cover body (22), the plug rod (232) is slidably inserted into the fixed block (231), and the return spring (233) is used to push the plug rod (232) into the jack of the box main body (21) to lock the cover body (22).

6. The ash cleaning device for a gasifier according to claim 1, characterized in that, At least four mounting ear plates (11) are provided at the edge of the base (1). The mounting ear plates (11) are used for fixing and installing the base (1) or binding a shoulder strap. The lower surface of the mounting ear plates (11) is provided with anti-slip lines.

7. The ash cleaning device for a gasifier according to claim 1, characterized in that, The suction connecting pipe (4) includes a hard pipe part and a flexible pipe part. The hard pipe part is connected to the box body (2), and the flexible pipe part is connected to the hard pipe part.

8. The ash cleaning device for a gasifier according to claim 7, characterized in that, The hard pipe part is provided with a bending area.

9. The ash cleaning device for a gasifier according to claim 1, wherein, The discharge pipe (5) is detachably connected to an ash collection bag for collecting furnace ash.

10. The ash cleaning device for a gasifier according to claim 1, characterized in that, The box body (2) is a rectangular parallelepiped shell or a cylindrical shell. A handle for gripping is provided on the base (1) or the box body (2).

Images