CN216303729U - Spiral grate for gasification furnace - Google Patents

Abstract

The utility model relates to the technical field of fire grates and discloses a spiral fire grate for a gasification furnace, which comprises a base, wherein a combustion device is fixedly arranged on the upper end surface of the base, a circular table block is fixedly arranged in the combustion device, and a fixed shaft is fixedly sleeved on the inner wall of the circular table block. According to the utility model, through the cooperation of the spiral grate sheet, the combustion device, the igniter and the baffle, the spiral grate sheet is utilized to bear the combustion objects, so that the contact area of the combustion objects in the combustion process is increased, the problem of incomplete combustion of the combustion objects is effectively solved, the spiral grate sheet is arranged to enable the combustion objects to achieve the effect of gradual combustion, the effect of full combustion of the combustion objects is realized, the combustion efficiency of the combustion objects is improved, the step of secondary combustion of the combustion objects is also saved, the workload of workers is reduced, the working time of the combustion device is shortened, and the service life of the combustion device is prolonged.

Description

Spiral grate for gasification furnace

Technical Field

The utility model relates to the technical field of fire grates, in particular to a spiral fire grate for a gasification furnace.

Background

The grate is a part of a boiler or an industrial furnace where solid fuel is piled up and efficiently burned. The whole fire grate mainly comprises a frame and fire grate pieces, wherein the fire grate pieces are usually made of cast iron, necessary ventilation gaps are kept between the assembled pieces, and a partitioned ventilation chamber capable of adjusting air volume is arranged below the fire grate to facilitate air to enter a fuel layer through the gaps for combustion, burnt ash is discharged by a manual or mechanical method, the fire grate is of a fixed type, a movable type, a reciprocating type, a vibration type, a lower feeding type and the like, the fixed fire grate pieces are generally strip-shaped or plate-shaped, are fixedly arranged at the bottom of a hearth or a combustion chamber by surrounding frames, and can only be used for periodically adding coal and discharging slag by manual operation; the movable type has chain belt type and chain type, the grate surface of the chain belt type grate is the chain belt; the fire grate pieces of the chain type fire grate are fixed on a bracket or a support at the upper part of the chain, the chain type fire grate and the chain type fire grate both drive the chain by a chain wheel, so that the fire grate pieces slowly move, and coal uniformly falls on the fire grate from a coal hopper at the front end of the fire grate; the reciprocating type furnace grate consists of a group of fixed furnace grate pieces and a group of movable furnace grate pieces which move in a reciprocating manner, and is divided into a step type and a horizontal type; the grate segments generate periodic vibration under the action of a motor and an eccentric wheel to ensure that ash slag after being burnt out falls into an ash pit at the end part of the grate; the lower feeding type grate with a groove-shaped structure is provided with a spiral rod at the bottom of the groove and is communicated with a coal hopper outside the furnace.

However, the fire grate of the existing gasification furnace is influenced by the volume and quantity of the combustion objects in the combustion process of the combustion objects, the combustion objects are prone to be incompletely combusted in the combustion process, and the combustion objects which are not sufficiently combusted are discharged to the outside of the combustion device, so that the secondary combustion step of the combustion objects is caused, the workload of workers is increased, the utilization rate of the combustion objects is reduced, the working time of the combustion device is increased, and the service life of the combustion objects is shortened; simultaneously along with the continuous increase of the detritus volume that the comburent produced, very easily cause the jam of scum pipe, the mode of artifical mediation scum pipe can lead to the detritus of high temperature burning to drop to the staff on one's body, causes staff's scald, the risk that accident took place when having increased the staff and having dredged the scum pipe.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a spiral grate for a gasification furnace, which has the advantages of controlling the discharge amount and speed of chips after combustion, enabling the combustion of combustion substances to be more sufficient, improving the utilization rate of the combustion substances and improving the utilization rate of the grate, and solves the problems in the background art.

The utility model provides the following technical scheme: the utility model provides a spiral grate for gasifier, includes the base, the up end fixed mounting of base has burner, burner's inside fixed mounting has the round platform piece, the fixed axle has been cup jointed to the inner wall of round platform piece, spiral grate segment is installed to the outer wall of fixed axle, one side fixed mounting that the fixed axle was kept away from to spiral grate segment has the baffle, the lower bottom surface fixed mounting of base has the ash collecting funnel, the one end fixedly connected with scum pipe of base is kept away from to the ash collecting funnel, burner's right side fixed mounting has some firearms.

Preferably, the inside of scum pipe is provided with elevating gear, elevating gear's lower extreme fixedly connected with is located the driving gear of scum pipe below, the left side swing joint of driving gear has driven gear, driven gear's upper end fixedly connected with rotary rod, the outer wall activity of rotary rod has cup jointed the gusset plate that is located the scum pipe left side.

Preferably, the left side and the right side of the inner wall of the slag discharging pipe are provided with sliding chutes corresponding to the positions of the sliding chutes, the left side of the slag discharging pipe is fixedly connected with the right side of the reinforcing plate, and the lower end face of the slag discharging pipe is provided with an annular groove.

Preferably, elevating gear includes the dwang that cup joints with the inside activity of scum pipe, the elevator has been cup jointed in the outer wall activity of dwang, the left and right sides fixedly connected with gag lever post of elevator, and the inner wall activity of the spout that the outer wall of gag lever post and scum pipe were seted up cup joints.

Preferably, the inner wall of elevator is provided with the screw thread, the inner wall of elevator cup joints with the outer wall screw thread of dwang, and the outer wall of dwang is provided with the screw thread that corresponds with the elevator inner wall.

Preferably, the outer wall of driving gear and driven gear's outer wall insection meshing, the up end fixedly connected with of driving gear is located the outside T shape pole of dwang, and the horizontal pole of T shape pole extends to the inside of terminal surface under the scum pipe, the montant of the T shape pole of driving gear cup joints with the inner wall activity of the ring channel that the scum pipe was seted up.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the cooperation of the spiral grate sheet, the combustion device, the igniter and the baffle, the spiral grate sheet is utilized to bear the combustion objects, so that the contact area of the combustion objects in the combustion process is increased, the problem of incomplete combustion of the combustion objects is effectively solved, the spiral grate sheet is arranged to enable the combustion objects to achieve the effect of gradual combustion, the effect of full combustion of the combustion objects is realized, the combustion efficiency of the combustion objects is improved, the step of secondary combustion of the combustion objects is also saved, the workload of workers is reduced, the working time of the combustion device is shortened, and the service life of the combustion device is prolonged.

2. According to the utility model, through the matching among the driving gear, the driven gear, the lifting device and the slag discharge pipe, the driven gear is utilized to drive the driving gear to synchronously rotate, so that power is provided for the movement of the lifting device, thereby achieving the effect of controlling the slag discharge amount and the slag discharge speed inside the slag discharge pipe, effectively solving the problem of internal blockage of the slag discharge pipe, controlling the burned slag, avoiding blockage of the slag discharge pipe caused by accumulation of the slag, saving the dredging work of workers, and simultaneously avoiding the condition that the workers are scalded by the slag when dredging the slag discharge pipe, and reducing the risk of accidents of the workers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the inventive stage block;

FIG. 3 is a side view of the driven gear of the present invention;

FIG. 4 is a front cross-sectional view of the slag discharge pipe of the present invention;

fig. 5 is a bottom view of the lifting device of the present invention.

In the figure: 1. a base; 2. a combustion device; 3. a round table block; 4. a fixed shaft; 5. a spiral grate segment; 6. a baffle plate; 7. a dust collecting hopper; 8. a slag discharge pipe; 9. an igniter; 10. a lifting device; 101. rotating the rod; 102. a lifting block; 103. a limiting rod; 11. a driving gear; 12. a driven gear; 13. rotating the rod; 14. and a reinforcing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a spiral grate for a gasification furnace comprises a base 1, a combustion device 2 is fixedly installed on the upper end surface of the base 1, a circular truncated cone 3 is fixedly installed inside the combustion device 2, the inclined surface of the circular truncated cone 3 is arranged to facilitate crushed slag to fall into an ash collecting funnel 7, a fixed shaft 4 is fixedly sleeved on the inner wall of the circular truncated cone 3, spiral grate segments 5 are installed on the outer wall of the fixed shaft 4, and the spiral grate segments 5 are spirally arranged to realize the stepped combustion effect of a combustion object, so that the combustion object can be fully combusted, the combustion efficiency of the combustion object is improved, the secondary combustion step of the combustion object is saved, a baffle 6 is fixedly installed on one side of the spiral grate segments 5 away from the fixed shaft 4, the ash collecting funnel 7 is fixedly installed on the lower bottom surface of the base 1, and a slag discharge pipe 8 is fixedly connected to one end of the ash collecting funnel 7 away from the base 1, an igniter 9 is fixedly arranged at the right side of the combustion device 2.

Referring to fig. 2 and 3, a lifting device 10 is arranged inside the slag discharging pipe 8, the arrangement of the lifting device 10 controls the discharge amount and speed of the crushed slag inside the slag discharging pipe 8, and simultaneously avoids blockage of the slag discharging pipe 8 caused by accumulation of the crushed slag, thereby saving the work of manually dredging the slag discharging pipe 8 by workers, and reducing the risk of accidents when workers dredge the slag discharging pipe 8, the lower end of the lifting device 10 is fixedly connected with a driving gear 11 positioned below the slag discharging pipe 8, the rotation of the driving gear 11 provides power for the movement of the lifting device 10, the left side of the driving gear 11 is movably connected with a driven gear 12, the upper end of the driven gear 12 is fixedly connected with a rotating rod 13, the rotation of the rotating rod 13 provides power for the rotation of the driven gear 12, a reinforcing plate 14 positioned on the left side of the slag discharging pipe 8 is movably sleeved on the outer wall of the rotating rod 13, chutes with corresponding positions are arranged on the left side and the right side of the inner wall of the slag discharging pipe 8, the left side of the slag discharging pipe 8 is fixedly connected with the right side of the reinforcing plate 14, the slag discharging pipe 8 is installed to provide a support and a platform for installation of the reinforcing plate 14, and an annular groove is formed in the lower end face of the slag discharging pipe 8.

Referring to fig. 4, the lifting device 10 includes a rotating rod 101 movably sleeved with the interior of the slag discharging pipe 8, a lifting block 102 is movably sleeved on the outer wall of the rotating rod 101, the descending of the lifting block 102 also plays a role in closing the slag discharging pipe 8, so as to achieve the effect of preventing the crushed slag from falling down, the lifting block 102 is lifted to realize the adjustment of the falling speed and the falling amount of the slag, the left side and the right side of the lifting block 102 are fixedly connected with the limiting rods 103, the outer wall of the limiting rod 103 is movably sleeved with the inner wall of a sliding groove formed in the slag discharge pipe 8, the installation of the limiting rod 103 limits the motion path and track of the lifting block 102, the inner wall of the lifting block 102 is provided with threads, the inner wall of the lifting block 102 is in threaded sleeve connection with the outer wall of the rotating rod 101, and the outer wall of dwang 101 is provided with the corresponding screw thread with elevator 102 inner wall, and the connected mode that the screw thread cup jointed has realized providing power for the elevating movement of elevator 102's vertical direction through the circumference rotation to dwang 101.

Please refer to fig. 5 and fig. 1, the outer wall of the driving gear 11 is engaged with the outer wall insection of the driven gear 12, the connection mode of insection engagement realizes the synchronous rotation effect between the driving gear 11 and the driven gear 12, the upper end face of the driving gear 11 is fixedly connected with the T-shaped rod located outside the rotating rod 101, and the cross rod of the T-shaped rod extends to the inside of the lower end face of the slag discharging pipe 8, the vertical rod of the T-shaped rod of the driving gear 11 is movably sleeved with the inner wall of the annular groove formed by the slag discharging pipe 8, the T-shaped rod is arranged to play a role in connecting the slag discharging pipe 8 and the driving gear 11, thereby avoiding the falling of the driving gear 11, and strengthening the stability of the driving gear 11 during installation and rotation.

The working principle is as follows: when the device is used, firstly, the comburent added into the combustion device 2 falls on the surface of the spiral grate segment 5, along with the spiral arrangement of the spiral grate segment 5, the comburent achieves the effect of gradual combustion, the combustion efficiency of the comburent is improved, the slag generated after the comburent is combusted falls on the surface of the circular truncated cone block 3, then falls in the ash collecting hopper 7 and falls in the slag discharging pipe 8, then, the discharge speed of the slag of the comburent is adjusted as required, the rotating rod 13 is rotated, the rotating rod 13 drives the circumferential rotation of the driven gear 12 while rotating, the driven gear 12 drives the synchronous rotation of the driving gear 11 while rotating, the driving gear 11 drives the rotating rod 101 to rotate in the same direction, the rotating rod 101 is limited by the limiting rod 103 while rotating, so that the lifting block 102 does the lifting movement in the vertical direction, and the lifting block 102 moves upwards, the slag falling into the slag discharge pipe 8 slowly falls to the outside of the combustion device 2, and finally, when the discharge speed of the combustion slag is required to be reduced, the rotating rod 13 is rotated reversely, so that the discharge amount and speed of the slag can be controlled.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the utility model, the filling pattern is only used for distinguishing the layers and is not limited at all.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a spiral grate for gasifier, includes base (1), its characterized in that: the utility model discloses a stove, including base (1), the up end fixed mounting of base (1) has burner (2), the inside fixed mounting of burner (2) has round platform piece (3), fixed axle (4) have been cup jointed to the inner wall of round platform piece (3) is fixed, spiral grate segment (5) are installed to the outer wall of fixed axle (4), one side fixed mounting that fixed axle (4) were kept away from in spiral grate segment (5) has baffle (6), the lower bottom surface fixed mounting of base (1) has collection ash funnel (7), the one end fixedly connected with scum pipe (8) of base (1) are kept away from in collection ash funnel (7), the right side fixed mounting of burner (2) has some firearm (9).

2. The spiral grate of claim 1, further comprising: the inside of scum pipe (8) is provided with elevating gear (10), the lower extreme fixedly connected with of elevating gear (10) is located driving gear (11) of scum pipe (8) below, the left side swing joint of driving gear (11) has driven gear (12), the upper end fixedly connected with rotary rod (13) of driven gear (12), gusset plate (14) that are located scum pipe (8) left side have been cup jointed in the outer wall activity of rotary rod (13).

3. The spiral grate of claim 2, further comprising: the left side and the right side of the inner wall of the slag discharging pipe (8) are provided with sliding chutes corresponding in position, the left side of the slag discharging pipe (8) is fixedly connected with the right side of the reinforcing plate (14), and the lower end face of the slag discharging pipe (8) is provided with an annular groove.

4. The spiral grate of claim 2, further comprising: elevating gear (10) include dwang (101) that cup joints with the inside activity of scum pipe (8), elevator (102) have been cup jointed in the outer wall activity of dwang (101), the left and right sides fixedly connected with gag lever post (103) of elevator (102), and the inner wall activity of the spout that the outer wall of gag lever post (103) and scum pipe (8) were seted up cup joints.

5. The spiral grate of claim 4, further comprising: the inner wall of the lifting block (102) is provided with threads, the inner wall of the lifting block (102) is in threaded socket joint with the outer wall of the rotating rod (101), and the outer wall of the rotating rod (101) is provided with threads corresponding to the inner wall of the lifting block (102).

6. The spiral grate of claim 3, further comprising: the outer wall of driving gear (11) and the outer wall insection meshing of driven gear (12), the up end fixedly connected with of driving gear (11) is located the outside T shape pole of dwang (101), and the horizontal pole of T shape pole extends to the inside of terminal surface under row sediment pipe (8), the montant of the T shape pole of driving gear (11) cup joints with the inner wall activity of the ring channel that row sediment pipe (8) was seted up.

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